US20100279057A1 - Fabric-Faced Composites and Methods for Making Same - Google Patents
Fabric-Faced Composites and Methods for Making Same Download PDFInfo
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- US20100279057A1 US20100279057A1 US12/606,765 US60676509A US2010279057A1 US 20100279057 A1 US20100279057 A1 US 20100279057A1 US 60676509 A US60676509 A US 60676509A US 2010279057 A1 US2010279057 A1 US 2010279057A1
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- layer
- adhesive layer
- adhesive
- face layer
- composite
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/026—Knitted fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/008—Sewing, stitching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
- B32B2038/042—Punching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2471/00—Floor coverings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
- B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
- B32B37/203—One or more of the layers being plastic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23914—Interlaminar
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23943—Flock surface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/2395—Nap type surface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23957—Particular shape or structure of pile
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23957—Particular shape or structure of pile
- Y10T428/23964—U-, V-, or W-shaped or continuous strand, filamentary material
- Y10T428/23971—Continuous strand with adhesive bond to backing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23979—Particular backing structure or composition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23986—With coating, impregnation, or bond
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2738—Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/659—Including an additional nonwoven fabric
- Y10T442/66—Additional nonwoven fabric is a spun-bonded fabric
- Y10T442/662—Needled
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/659—Including an additional nonwoven fabric
- Y10T442/666—Mechanically interengaged by needling or impingement of fluid [e.g., gas or liquid stream, etc.]
- Y10T442/667—Needled
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/682—Needled nonwoven fabric
Abstract
The present invention is directed to multiple layer composites suitable for use as wall and floor coverings, among other uses, that provide a strong durable structure and a soft textile or fabric face. The composite includes a face layer bonded to an adhesive layer such that the adhesive layer penetrates into the face layer. The face layer can have legs extending there from, and such legs are anchored by the adhesive layer to provide stronger attachment between the adhesive layer and the face layer. A backing layer may also be provided in contact with the adhesive layer such that the adhesive layer also embeds into the backing layer, and the legs extending from the face layer may penetrate into the backing layer.
Description
- The present application is a continuation of co-pending, commonly-owned U.S. patent application Ser. No. 10/611,769, which was filed on Jul. 1, 2003.
- The present invention relates to fabric-faced laminates for use as floor coverings.
- Floor coverings are generally selected based upon a combination of factors including aesthetic features such as the look and feel of the floor covering and functional qualities such as retention of surface appearance, stain resistance, moisture resistance, ease of cleaning, and resistance to collection of dirt. For example, floor covering installations in high traffic areas or areas prone to moisture and stains such as kitchens generally use solid surface cover materials for the flooring or interior wall coverings such as wood, metal, marble, ceramic tile, vinyl or rubber. These products retain their surface appearance after heavy use and they are simple to keep clean. They also are resistant to stains and moisture, and less prone to harboring bacterial growth. However, these products lack the textile hand, softness or sound dampening qualities of textile products.
- In installations where aesthetic qualities such as texture and softness are desired, products such as tufted, knit, knotted or woven structures, including velour or velvet are used. These products provide softness and cushion, a soft textile hand and a degree of abrasion and wear resistance. Compared to rigid solid surfaced products, however, these floor coverings are less durable, tend to lose their texture with heavy use, because the pile tends to mat or to be crushed with heavy traffic, tend to collect dust and dirt, provide spaces that allow the growth of bacteria, and are difficult to clean and sanitize.
- Attempts have been made to create products having both the desired functional qualities of solid surface materials and the aesthetic qualities of textile or fabric materials. For example, hybrid structures with partially fibrous and partially solid faces are disclosed in U.S. Pat. No. 3,943,018. These hybrid structures, however, merely reduce but do not eliminate the limitations of regular tufted, velour, or flocked textile surfaces.
- Other attempts provide flat or profiled, e.g., sculpted, surfaces containing fibrous layers impregnated with a plastic matrix. Examples of fibrous layers impregnated with a plastic matrix are disclosed in U.S. Pat. Nos. 4,035,215, 4,098,629, and 6,063,473. These floor coverings generally have surfaces with a semi-fibrous feel, and the spaces between the fibers may be sufficiently sealed to prevent bacterial penetration and dirt collection. In addition, these floor coverings also provide a higher matting resistance than regular upright-oriented fiber structures. However, these floor covering products largely have a stiff leathery appearance rather than a soft textile feel, and the cost of preparing dimensionally-stable dense fibrous products, combined with the cost of impregnating and heat setting can be very high.
- U.S. Pat. No. 3,860,469 discloses another technique to produce inexpensive, dirt and bacterial growth resistant, and abrasion resistant surface covering materials with a textile fiber appearance in which flat or textured film-like skins are placed on top of a pile-like surface. The resultant floor covering products combine the qualities of carpet with the solidity of vinyl or rubber, but lack the textile quality and aesthetics of carpets.
- Other attempts assemble a basically flat textile fabric over a sublayer of adhesive backed with various layers of sub-surface reinforcement. For example, International Patent Publication No. WO 99/19557 discloses a woven face fabric backed by reinforcing layers, and U.S. Pat. No. 5,965,232 discloses a decorative fabric attached to dimensionally-stabilizing or cushioning layers. The fabric is further surface-stabilized. Laminates having a flat fabric face, however, tend to delaminate or fray at the edges unless the fabric is thoroughly impregnated with adhesives. Unfortunately, impregnation with adhesives adversely affects the textile feel and cushioning quality of the laminate.
- Because of these shortcomings, the need remains to provide a surface covering material that combines the desirable properties of both solid surface coverings and textile-type coverings into a single product. Suitable surface coverings would have at least some of the desired properties of surface stability, edge fray resistance, thermal stability, structural stability, dimensional stability, dirt resistance, bacteria resistance, soft textile hand, cushioning, and appearance extending over a full spectrum of tufted, knit, non-woven, woven, velour and velvet products.
- Composite materials in accordance with the present invention utilize a fibrous face layer combined with an adhesive layer to form a multi-layer structure. In order to provide the desired level of surface stability, the surface fibers of the fibrous face layer form loops, and the loops descend into the adhesive layer and are anchored in the adhesive layer. The loops are densely spaced and shallow. Although any portion of the fibers or legs of the looped fibers in the face layer can be dispersed in the adhesive, a significant amount or substantially all of the descending fibers are dispersed in the adhesive layer, which is in contact with the face layer. A characteristic of this invention is that short and densely spaced fiber loops embedded in adhesive provide improved surface stability and retention of appearance under repeated loading. Another characteristic is the resistance to cut-edge fraying.
- In order to maintain the desired aesthetic qualities of the composite material while achieving increased surface stability, the amount of penetration of the adhesive into the face layer is controlled. The adhesive layer is not allowed to penetrate into the top portion of the face layer. Therefore, the top of the face layer maintains its textile feel.
- Various types of fibrous face layer constructions can be used depending upon the aesthetics desired and a balance of cost vs. performance Regardless of the type of fibrous layer used, all of the embodiments and arrangements illustrated herein have a relatively fine and dense surface texture and they can also be embossed to produce three-dimensional textured products. In addition, a three layer composite structure can be provided wherein a backing layer is also bonded or laminated to the adhesive layer such that the adhesive layer is disposed between the face layer and the backing layer. Added structural rigidity is provided by having the adhesive layer penetrate into the backing layer as well.
- To prepare a composite material in accordance with the present invention, a fibrous face layer is arranged to have a relatively smooth top surface with a high density of fiber loop legs extending down through the thickness of the face layer to the bottom surface. An adhesive layer is brought into direct contact with the bottom surface of the face layer and embedded into the face layer to cause the adhesive to penetrate partially into the thickness of the face layer. In order to embed the adhesive layer in the face layer, pressure and heat can be applied. For a three layer laminate, the backing layer can be brought into direct contact with the adhesive layer before the adhesive layer is embedded into the face layer, allowing the adhesive layer to simultaneously penetrate into the backing layer. The adhesive layer may be pre-integrated onto the face layer or onto the backing layer before lamination. The adhesive layer may also contain non-adhesive reinforcing or blended components. The backing layer may also contain adhesive components, which may replace the need for a separate adhesive layer, if the adhesive is present in sufficient quantity to anchor and envelope the legs of the surface fiber loops descending into it.
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FIG. 1 is a schematic representation of a three layer embodiment of the composite material in accordance with the present invention; -
FIG. 2 is schematic representation of another three layer embodiment of the composite material; -
FIG. 3 is a schematic representation of another three layer embodiment of the composite material; -
FIG. 4 is a schematic representation of another three layer embodiment of the composite material; -
FIG. 5 is a schematic representation of a non-woven fabric layer; -
FIG. 6 is schematic representation of a needle punched non-woven fabric layer; -
FIG. 7 is a schematic representation of a needle punched non-woven face layer embodiment of the present invention before lamination; -
FIG. 8 is schematic representation of a needle punched non-woven face layer embodiment of the present invention after lamination; -
FIG. 9 is a schematic representation of a non-woven fabric layer in contact with an adhesive layer; -
FIG. 10 is a schematic representation of a non-woven fabric layer needle punched through an adhesive layer; -
FIG. 11 is a schematic representation of a non-woven fabric layer in combination with an adhesive layer and a backing layer; -
FIG. 12 is a schematic representation of a non-woven fabric layer needle punched through an adhesive layer and a backing layer before lamination; -
FIG. 13 is a schematic representation of a non-woven fabric layer needle punched through an adhesive layer and a backing layer after lamination; -
FIG. 14 is a schematic representation of a stitchbonded fabric layer before gathering; -
FIG. 15 is a schematic representation of a stitchbonded fabric layer after gathering; -
FIG. 16 is a schematic representation of a gathered stitchbonded fabric layer in combination with an adhesive layer and a backing layer before lamination; -
FIG. 17 is a schematic representation of a gathered stitchbonded fabric layer in combination with an adhesive layer and a backing layer after lamination; -
FIG. 18 is a schematic representation of a stitchbonded fabric layer having an adhesive layer before gathering; -
FIG. 19 is a schematic representation of a stitchbonded fabric layer having an adhesive layer after gathering; -
FIG. 20 is a schematic representation of a pattern bonded fabric layer before bonding and gathering; -
FIG. 21 is a schematic representation of a pattern bonded fabric layer after bonding and before gathering; -
FIG. 22 is a schematic representation of a gathered pattern bonded fabric layer in combination with an adhesive layer and a backing layer before lamination; -
FIG. 23 is a schematic representation of a gathered pattern bonded fabric layer in combination with an adhesive layer and a backing layer after lamination; -
FIG. 24 is a schematic representation of a pattern bonded fabric layer having an adhesive layer before bonding and gathering; -
FIG. 25 is a schematic representation of a pattern bonded fabric layer having an adhesive layer after bonding and before gathering; -
FIG. 26 is a schematic representation of a bonded and gathered pattern bonded fabric layer having an adhesive layer; -
FIG. 27 is a schematic representation of a reversed pile knit fabric for use in the present invention; -
FIG. 28 is a schematic representation of a reversed pile knit fabric having cut and raised free fiber ends for use in the present invention; -
FIG. 29 is a schematic representation of a woven fabric for use in the present invention; -
FIG. 30 is a schematic representation of a woven fabric having cut and raised free fiber ends for use in the present invention; -
FIG. 31 is a schematic representation of an embodiment of an apparatus for stabilizing a woven or knit face layer during cutting and raising of fibers; and -
FIG. 32 is a schematic representation of another embodiment of an apparatus for stabilizing a woven or knit face layer during cutting and raising of fibers. - Referring initially to
FIGS. 1-4 , a fabric-facedcomposite material 10 in accordance with the present invention includes aface layer 12 containing a plurality of fibers. Suitable fabrics forface layer 12 include, but are not limited to, woven, non-woven, knit, stitchbonded or gathered structures. Theface layer 12 includes top side orsurface 16 and bottom side orsurface 18 oppositetop surface 16, definingthickness 20 offace layer 12 between them.Top surface 16 is the surface or face ofcomposite material 10 that is exposed when the laminate 10 is installed, for example on a substrate in a flooring application. -
Composite material 10 also includesadhesive layer 22 disposedadjacent face layer 12 in direct contact withbottom surface 18. Preferably,adhesive layer 22 is continuous or is composed of a single, smooth uninterrupted surface. Alternatively,adhesive layer 22 has a substantially constant thickness.Adhesive layer 22 can contain thermoplastic or thermosetting adhesives. Suitable materials foradhesive layer 22 include polyethylene, polypropylene, copolyester, copolyamide and combinations thereof. Suitable basis weights foradhesive layer 22 range from about 3 oz/yd2 to about 14 oz/yd2, preferably about 4 oz/yd2 to about 10 oz/yd2. -
Adhesive layer 22 penetrates intoface layer 12distance 24, which is sufficient to anchorface layer 12 andadhesive layer 22 together. In one embodiment,distance 24 ranges from about ¼ to about ¾ ofthickness 20 offace layer 12. Preferably,adhesive layer 22 does not penetrate completely through totop surface 16 offace layer 12 in order to preserve the soft, textile feel ofcomposite material 10. The depth of penetration ofadhesive layer 22 intoface layer 12 can be controlled by varying the construction offace layer 12, the construction ofadhesive layer 22 or the process conditions used to embedadhesive layer 22 intoface layer 12. In one embodiment, the viscosity ofadhesive layer 22 is adjusted to limit the depth of penetration to within the lower ¾ offace layer 12 so that at least the upper ¼ offace layer 12 is free of adhesive. Theaverage height 60 of the face layer above the average level of adhesive penetration varies between about 0.5 mm and about 2.0 mm, and the basis weight is in the range of about 100 grams/m2 to about 500 grams/m2. - In general, the penetration of
adhesive layer 22 intoface layer 12 increases the amount or surface area of the adhesive layer that is in contact with the structure or fibers of theface layer 12. Increasing the surface area contact betweenadhesive layer 22 andface layer 12 increases the strength of the bond between the two layers and the overall rigidity and strength of the resulting two layer laminate. Overall, this arrangement yields acomposite material 10 with improved structural strength and rigidity and a pleasurable soft texture. - Although
composite materials 10 in accordance with the present invention can contain just two layers,face layer 12 andadhesive layer 22, additional layers may also be included. In three layer arrangements as illustrated inFIGS. 1-4 ,composite material 10 also includes backinglayer 26 in direct contact withadhesive layer 22. Backinglayer 26 is disposed such thatadhesive layer 22 is disposed betweenbacking layer 26 andface layer 12. In order to provide increased structural rigidity,adhesive layer 22 also preferably penetrates or extends intobacking layer 26. Additional layers such as a gas permeable layer, bactericide layer or the like can also be added. As used herein, backing layer includes any layer, composite or laminate being attached tocomposite 10.Composite 10 can also be embossed and simultaneously bonded and/or laminated to any backing layer. - In either the two layer or three layer embodiments of the current invention, the layers are laminated together by applying pressure and heat, preferably from
top surface 16, to cure or meltadhesive layer 22 and to control the depth of adhesive penetration. For thermosetting adhesives,adhesive layer 22 can be applied tobottom surface 18 offace layer 12 or to the top ofbacking layer 26 and the resultant structure can be cured under pressure with a hot tool at a temperature that curesadhesive layer 22 but leaves the fibers inface layer 12 andbacking layer 26 intact. For thermoplastic adhesives,adhesive layer 22 is preferably pre-attached tobottom surface 18 offace layer 12 or the top face ofbacking layer 26 and preheated or pre-melted in-situ, for example by applying radiant heat, before all of the layers are laminated together under pressure. In one embodiment,adhesive layer 22 is preheated before applying pressure toadhesive layer 22,face layer 12 orbacking layer 26. - A wide variety of materials can be used as
backing layer 26 depending upon the desired thickness, strength and flexibility of threelayer composite material 10. In one embodiment, backinglayer 26 is a pre-needled layer of higher-denier fibers of up to about 20 denier per filament or fiber and weighing at least about 10 oz/yd2. In another embodiment, backinglayer 26 is a needled felt of reclaimed carpet fibers. In yet another embodiment, backinglayer 26 is a used tufted carpet. - Although the fibers in
face layer 12 atbottom surface 18 are spaced from backinglayer 26, these fibers can alternatively extend completely throughadhesive layer 22 and be in contact withbacking layer 26. In addition, these fibers can extend completely through theadhesive layer 22 and into thebacking layer 26 and even through the entire thickness ofbacking layer 26. These arrangements can be achieved by controlling the composition ofadhesive layer 22 and the process used to laminate the three layers together as discussed below. In addition, separate processes, for example needle punching, can be used to interlock the fibers offace layer 12 intoadhesive layer 22 andbacking layer 26. - In general, the
bottom surface 18 offibrous face layer 12 includes a plurality oflegs 19 dependent there from.Legs 19 are anchored intoadhesive layer 22 incomposite 10 and in some embodiments extend intobacking layer 26.Legs 19 include structures offace layer 12 such as free fiber ends of needle punched or spunlaced/hydraulically needled loops,FIG. 1 , undulating gathered loops of stitchbonded or pattern bonded fabrics,FIG. 2 , pile loops of knit fabrics,FIG. 3 , and cut and raised free fiber ends of knit and woven fabrics,FIG. 4 . The term “legs” or “legs formed from loops” as used herein includes all of these structures or portions thereof, and also includes any remaining fiber portions of the loops that have been cut to form piles. Processes such as laminating using pressure and heat and needle punching are used to anchorlegs 19 intoadhesive layer 22. - In one embodiment in accordance with the present invention as shown in
FIGS. 5-8 ,composite material 10 includes needled,non-woven face layer 12 containing a plurality offibers 14. In one embodiment,non-woven face layer 12 contains a web of staple fibers. Suitable staple fibers range from about 0.5 denier to about 5 denier per filament or fiber and have a length ranging from about 0.5 inches to about 3 inches, forming a non-woven web having a weight ranging from about 3 oz/yd2 to about 14 oz/yd2. - Although
fibers 14 are initially arranged in a generally planar pattern inface layer 12 as illustrated inFIG. 5 , a portion offibers 14 are needle punched or hydraulically needled (spunlaced) towardbottom surface 18 as illustrated inFIG. 6 . When mechanical needle punching is used, the needling density is at least over 500 penetrations per square inch (ppsi) and preferably over 1,000 ppsi. The web offibers 14 is needled fromtop surface 16 with a relatively large number of needle penetrations per unit area. Generally, the needle punch density is from about 250 needles/in2 to about 2000 needles/in2. In one embodiment,web 14 has a needle punch density of at least about 250 needles/in2. Alternatively, the needle punch density is at least about 500 needles/in2. Preferably, the needle punch density is at least 1000 needles/in2. - The product of
FIG. 5 can also be formed using hydraulic needling (spunlacing). Preferably, the needled web consists of shorter fibers, up to about 2 inches long, preferably less than about 1 inch and more preferably shorter fibers, including pulps. Also, preferably the needling jets are relatively not dense, e.g., less than 50 penetrations/inch. The needling is performed substantially or totally from the top, and the needling energy is relatively high, e.g., at least 20 HP·HR/lb. - In this embodiment,
face layer 12 is densified and acquires a relatively smooth top surface orupper face 16 containing a plurality ofloops 32 facing downward. Eachloop 32 contains free fiber ends orlegs 34 that descend throughface layer 12 and terminate atbottom surface 18. In order to form a three layer configuration of this embodiment,adhesive layer 22 is placed in direct contact withbottom side 18 andbacking layer 26 such thatadhesive layer 22 is disposed betweenface layer 12 andbacking layer 26 as is shown inFIG. 7 . After activation ofadhesive layer 22 as shown inFIG. 8 ,adhesive layer 22 penetrates partially intoface layer 12 andbacking layer 26, laminating all three layers together.Needled fibers 14 are anchored inadhesive layer 22 atlegs 34 ofloops 32. The upper strata or layers offace layer 12 remain free of adhesive fromadhesive layer 22. - Preferably, in this embodiment, the selected
non-woven face layer 12,FIG. 5 , is needle punched or spunlaced (hydraulically needled) to produce a plurality of free fiber ends 34 atbottom surface 18,FIG. 6 . Continuousadhesive layer 22 is then placed in direct contact withbottom surface 18,FIG. 7 , andadhesive layer 22 is embedded into face layer 12 a sufficient distance to anchorface layer 12 inadhesive layer 22. In order to embedadhesive layer 22 intoface layer 12,adhesive layer 22 is heat activated. Pressure may also be applied totop surface 16 offace layer 12. A variety of methods can be used to apply heat and pressure totop surface 16 such as contactingtop surface 16 with one or more heated pressure plates (not shown).Adhesive layer 22 may also be preheated as for example with radiant heat before placingface layer 12 upon it. - Referring to
FIGS. 9 and 10 ,face layer 12 is brought into direct contact withadhesive layer 22 before face layer is needle punched,FIG. 9 . Then, facelayer 12 is needle punched so that free fiber ends 34 penetrate into and in some cases completely throughadhesive layer 22. Spunlacing or hydraulic needling is not applicable with the embodiment shown inFIGS. 9 and 10 . In this embodiment,adhesive layer 22 may constitute a low-melt thermoplastic sheet or layer, e.g. polyethylene, polypropylene, low-melt copolyester or copolyamide. This sheet or layer can be in the form of a film or fabric, for example a non-woven fabric, or a layer of low-melt fibers. After the fibers are needle punched intoadhesive layer 22,adhesive layer 22 is heat activated and laminated to facelayer 12 using pressure as described above. - Referring to
FIGS. 11-13 , in addition to bringingadhesive layer 22 into contact withface layer 12 prior to needle punching, backinglayer 26 can also be brought into contact withadhesive layer 22 before needle punching. In this three layer embodiment, backinglayer 26 is placed in direct contact withadhesive layer 22 such thatadhesive layer 22 is disposed betweenbacking layer 26 and face layer 12 (FIG. 11 ). Then, facelayer 12 is needle punched resulting in fiber ends 34 that extend completely throughadhesive layer 22 and into backing layer 26 (FIG. 12 ). Thecomposite material 10 is then finished by heat activatingadhesive layer 22 in-situ with or without substantial applied pressure (FIG. 13 ). In this embodiment, backinglayer 26 is preferably a heavier and more resilient structure thanface layer 12 so that backinglayer 26 does not collapse as a result of the dense needling action. - Referring to
FIGS. 14-17 , another embodiment of thecomposite material 10 in accordance with the present invention is illustrated whereinface layer 12 is an undulated, gathered or folded structure with the plurality of fibers disposed in a gathered layer forming a plurality of downwardly facingloops 40 disposed attop surface 16 and descending fromtop surface 16 tobottom surface 18 and a plurality of upwardly facingloops 42 disposed atbottom surface 18 and ascending throughface layer 12. - Suitable gathered structures include creped webs, microfolded webs, non-wovens, wovens, and knits. The structures also include webs, non-wovens, knits and wovens that are stitched with shrinkable yarns and post-shrunk to form folded structures. Suitable shrinkable yarns include stretched elastic yarns, partially oriented yarns, and flat, fully oriented yarns heated near the melting points of the yarns to cause the yarns to shrink. Polyolefin yarns are also suitable for shrinking 5-20° C. below their melting points.
Face layer 12 can also include a plurality of secondary non-shrinking yarns (not shown) in contact with the stitching substrate. These secondary yarns can be stitched-in or laid-in yarns. - As illustrated in
FIG. 15 ,face layer 12 is a stitchbonded layer that includes a buckledstitching substrate 44 containing the plurality of fibers and a substantially planar network ofshrinkable yarns 46 stitched to the stitching substrate. To produce a relatively smooth surface, the stitching frequency is relatively high in both directions (gauge and CPI), between about 6 stitches per inch and about 30 stitches per inch, preferably between about 10 stitches per inch and about 30 stitches per inch. In addition,face layer 12, before being folded or gathered, has a fabric basis weight ranging from about 25 gm/m2 to about 150 gm/m2. After folding and gathering, face layer has a fabric basis weight ranging from about 100 gm/m2 to about 600 gm/m2 and a folded frequency ranging from about 12 folds per inch to about 60 folds per inch. In addition, the thickness offace layer 12 is from about 0.5 mm to about 2 mm thick after folding. - In an alternative embodiment as is illustrated in
FIGS. 18-19 ,adhesive layer 22 can be integrated within the stitch-bonded structure offace layer 12. In this embodiment,adhesive layer 22 can be a shrinkable layer that assists in creating the gathered structure offace layer 12. Suitable adhesive layers include polyolefin films that shrink at about 130° C. to about 160° C. by a factor of about 1.3 to about 2.2 without melting. Suitable gathering frequencies and fabric weights for this arrangement are the same as for the embodiment illustrated inFIGS. 14 and 15 . Suitable stitch-bonded structures offace layer 12 are disclosed in common owned, co pending patent application entitled “Stitch-bonded and Gathered Composites and Methods for Making Same,” by the same inventor as the present invention and filed on the same day as this patent application. - In order to make the
composite material 10 of the embodiment illustrated inFIGS. 14-17 ,stitching substrate 44 containing the plurality of fibers is selected and stitchbonded usingshrinkable yarn 46 in accordance with the desired fabric weight and gathered density,FIG. 14 .Shrinkable yarn 46 is then shrunk to produce the gathered fabric structure,FIG. 15 .Adhesive layer 22 is then brought into contact withbottom surface 18 of gatheredface layer 12 and embedded intoface layer 12 to form a two-layer laminate.Adhesive layer 22 is embedded intoface layer 12 by applying heat and pressure. Althoughadhesive layer 22 is preferably in direct contact with thetechnical bottom surface 18 offace layer 12,adhesive layer 22 may alternatively be placed in direct contact with the technicaltop surface 16 offace layer 12. If a three layer laminate is being made, backinglayer 26 is brought into contact withadhesive layer 22 prior to application of the heat and pressure so thatadhesive layer 22 also penetrates intobacking layer 26,FIGS. 16 and 17 . - In another embodiment as illustrated in
FIGS. 20-23 ,face layer 12 is a thin and dense gathered, pattern bonded layer containingface layer substrate 50 containing a plurality of fibers andshrinkable sublayer 52 attached or bonded to facelayer substrate 50 with a spaced pattern of a plurality ofdiscrete bonds 54,FIG. 21 , placed at frequencies similar to the stitch frequencies of the embodiments illustrated inFIGS. 14-17 . Heatedpattern bonding tool 55 is used to producebonds 54.Face layer 12 is a fibrous web or fabric having a total buckled thickness of from about 0.5 mm to about 2 mm.Shrinkable sublayer 52 is preferably relatively open to allow the penetration of the thermoplastic or thermoset adhesive fromadhesive layer 22 intoface layer 12. As with other embodiments of the present invention, thermoset or thermoplastic adhesives may benefit from the pre-application ofadhesive layer 22 to one or both mating surfaces. Thermoplastic lamination may also benefit from preheating to accelerate the lamination process. - As shown in
FIGS. 24-26 ,adhesive layer 22 can be integrated into the structure offace layer 12 beforesubstrate 50 is bonded toshrinkable sublayer 52. In order to be integrated intoface layer 12,adhesive layer 22 is placed in direct contact withshrinkable sublayer 52 such thatshrinkable layer 52 is disposed betweenadhesive layer 22 andsubstrate 50,FIG. 24 . In this embodiment,adhesive layer 22 is preferably a shrinkable layer. The three layers are then bonded together with thediscrete bonds 54,FIG. 25 . Following bonding,shrinkable sublayer 52 and, if applicable,adhesive layer 22 are shrunk to produce gatheredface layer 12,FIG. 26 . - In order to make the composite material in accordance with the arrangements illustrated in
FIGS. 20-23 ,fibrous substrate 50 is selected andshrinkable substrate 52 placed in contact withfibrous substrate 50,FIG. 20 .Fibrous substrate 50 andshrinkable substrate 52 are then bonded together in a pattern similar in frequency to those depicted inFIGS. 14-19 in accordance with the desired fabric weight and gathered density. Suitable methods for pattern bonding these layers together include applyingheated pattern plate 55 containing the desired pattern totop surface 56 ofsubstrate 50,FIG. 21 .Shrinkable substrate 52 is then shrunk to produce the gathered face layer structure,FIG. 22 .Adhesive layer 22 is then brought into contact withbottom surface 18 and embedded intoface layer 12 for example by applying heat and pressure. If a three layer laminated is being made, backing 26 is brought into contact withadhesive layer 22 prior to application of the heat and pressure so thatadhesive layer 22 also penetrates intobacking layer 26,FIG. 23 . - In another embodiment in accordance with the present invention as illustrated in
FIG. 3 ,face layer 12 is a reversed knit or woven pile fabric layer. Suitable reversed knit or woven pile fabrics include those used to prepare velours or velvets.Pile side 58 offace layer 12 is sufficiently long to provide for adequate embedding ofadhesive layer 22 intoface layer 12 to stabilizeface layer 12. Suitable fabrics have basis weights that range from about 4 oz/yd2 to about 16 oz/yd2, preferably about 6 oz/yd2 to about 12 oz/yd2 (about 200 gm/m2 to about 400 gm/m2). As in the case of surface layers 12 in accordance with the present invention,fabric face layer 12 provides a durable and decorative surface that utilizes finer and softer fibers that can be applied overbacking layer 26 containing lower-cost, stiffer fibers to provide cushion, body, and dimensional stability. - In order to make
composite material 10 in accordance the embodiment ofFIG. 3 , knit or woven pilefabric face layer 12 is selected andadhesive layer 22 is brought into direct contact withbottom surface 18 offace layer 12.Adhesive layer 22 is then embedded intofabric face layer 12, for example by the application of heat and pressure. If a three layer arrangement is desired, backinglayer 26 is brought into direct contact withadhesive layer 22 beforeadhesive layer 22 is embedded intofabric face layer 12 so thatadhesive layer 22 will also embed or penetrate intobacking layer 26. - Referring to
FIGS. 27 and 28 , whenface layer 12 is a knit fabric,face layer 12 contains a plurality ofoverlaps 60 ontop surface 16 and a plurality ofunderlaps 61 onbottom surface 18. In order to provide for stronger bonding between knitfabric face layer 12 andadhesive layer 22, underlaps 61 can be cut, sanded, brushed or sheared atbottom surface 18 to produce a plurality of cut and raisedfibers 62. When laminated toadhesive layer 22,adhesive layer 22 will embed intofabric face layer 12 throughout the area of cut and raisedfibers 62. This embodiment utilizes many different kinds of knits. Suitable knits containunderlap loops 61 that can be cut and raised onback surface 18 without affecting the texture oftop surface 16. - Referring to
FIGS. 29 and 30 ,face layer 12 contains a woven fabric having a plurality ofwarp yarns 64 and a plurality ofweft yarns 66.Weft yarns 66 have been cut, sanded, brushed or sheared on one surface of wovenfabric face layer 12 in a manner that leaves yarn overlaps 68 of interconnectingwarp yarns 64 intact and produces a plurality of cut and raisedfibers 62 atbottom surface 18. - In order to make a composite material in accordance with the embodiments illustrated in
FIGS. 27-30 , a knit or wovenface layer 12 is selected and the pile loop side for the knit fabric or one side of the woven fabric is sanded or cut to produce cut and raisedfibers 62.Adhesive layer 22 is then brought into direct contact with cut and raisedfibers 62 and embedded intoface layer 12.Adhesive layer 22 can be embedded by the application of pressure and heat. If a three layer embodiment is desired, backinglayer 26 is brought into contact withadhesive layer 22 beforeadhesive layer 22 is embedded intoface layer 12 so thatadhesive layer 22 will also penetrate intobacking layer 26. - Since knit or woven
face layer 12 is being cut or abraded, which weakens the structural integrity of the fabric,face layer 12 can be stabilized before being cut or sanded to assist in preserving the knit or woven structure during cutting or shearing. Stabilization or immobilization can be achieved by attaching a stabilizing sheet or a temporary layer of adhesive totop surface 16 prior to cutting, sanding or abradingbottom surface 18. Following cutting, lamination offace layer 12 to the other layers can be performed with the face stabilizer left in place or removed. - In another embodiment of stabilizing
face layer 12 as illustrated inFIGS. 31 and 32 ,face layer 12 can be stabilized onhigh friction roller 70. As illustrated, a continuous feed offace layer 12 fromface layer roll 72 is introduced ontohigh friction roller 70.Face layer 12 is then exposed to sandingroller 74, brushingroller 76 or nappingroller 78 producing cut and raisedfibers 62 while stabilizingtop surface 16. Backinglayer 26 andadhesive layer 22 are brought into contact with each other and heated and then laminated to facelayer 12 whileface layer 12 is still immobilized onhigh friction roller 70. Optionally,roller 70 may be heated. The finished composite material is then collected on take-uproller 80.Adhesive layer 22 can be introduced as a continuous sheet,FIG. 31 , applied tobacking layer 26 using a spray heads 82,FIG. 32 , or applied tobacking layer 26 as afoam 84 that is then doctor knifed 86 to the desired thickness,FIG. 32 . - A blend of 80% 1.5 denier 1.5 inch polyester fibers and 20% 1.5 denier 1.5 inch polypropylene fibers is carded and lapped into a structure weighing approximately 8 oz/sq.yd. This face layer is then needled from one side only with 1,500 penetrations/sq.in. forming a dense surface and a very fur-like backface with many free ends and loops, as shown in
FIG. 6 . - A second blend of 80% 15 denier, 1.5 inch cut polyester and 20% 1.5 denier 1.5 cut polypropylene fiber is carded and lapped into a 24 oz/sq.yd batt and needled with 300 penetrations per square inch from one face to form the backing layer.
- A dual layer of 0.05 inch thick polyethylene utility films is placed between the face layer and the backing layer, with the needled sides of the face layer and the backing on the outside and pressed with a plate heated to about 200 degrees C. placed against the face layer, at 1000 psi for 3 seconds. The plate facing the backing is at room temperature. The product is solidly laminated with all free fiber ends embedded in the molten polyethylene. Adhesive penetrates the two layers, but leaves a thickness of face layer approximately 1 mm thick free of adhesive. Delamination cannot be achieved without damage to the face or backing layers. The surface is smooth, durable and traffic-wear resistant with a textile feel and improved edge-fraying resistance.
- The face layer of Example 1 is needled into the adhesive layer before laminating onto the backing layer. The stability of the surface is superior to Example 1. Delamination without destroying the layers is even more difficult. The surface is fibrous, smooth, free of adhesive and traffic-wear and edge-fraying resistant. The fibrous height above the adhesive penetration is approximately 0.9 mm.
- The needled face layer of Examples 1 and 2 is needled directly through the dual adhesive layer and into the backing (
FIG. 12 ) before the hot pressing process. The product has a textile feel and excellent durability and is delamination resistant. - A non-woven fabric containing commercial polyester Sontara® spunlaced Style 8034 (20 g/m2), sold by E. I. DuPont de Nemours, is stitched with P.O.Y. polyester yarn (155 denier/34 filament) using a stitch pattern of 1,0/3,4 at 14 gauge and 12 cpi. After stitching the product is subjected to 190 degrees C. for 30 seconds within a tentering frame, allowing it to shrink by a ratio of 1.7/1 both in the machine and cross directions. It forms a thin and dense undulated folded fabric structure as shown in
FIG. 15 . This fabric is placed over the dual layers of adhesive and backing of Example 1 and laminated as described in Example 1. The composite is very stable and traffic-wear resistant and has a textile feel with improved resistance to edge-fraying. Loop density is approximately 22/inch in both directions and loop height above the adhesive penetration is approximately about 1 mm. - The stitching bonding step for the face layer of Example 4 is repeated with an additional layer of 5.5 mil thick polyethylene adhesive film placed over the Sontara® nonwoven. After shrinking by a ratio of 1.6/1 in both directions by subjecting it to 150 degrees C. for 30 seconds within a frame, a buckled face layer containing an added layer of polyethylene on its technical back is produced (
FIG. 19 ). The composite is laminated to the backing of Example 1 under the same conditions with the same excellent results. - In this example, a folded layer produced by shrinking a dual shrinkable/non-shrinkable laminate is illustrated. A buckled face layer is constructed by intermittently “tacking” a layer of Style 8003 spunlaced non-woven polyester Sontara® (1.9 oz/yd2 or about 50 gm/m2) to a shrinkable sublayer consisting of a carded web of polypropylene staple weighing 30 gm/m2. The bonding pattern consists of elevated lines 0.5 mm thick extending across every 2 mm. Tacking is preformed using a heated patterned plate that is heated to 200 degrees C. and placed on the polyester side using 1000 psi for about 2 seconds. The polypropylene side rests against a room temperature steel plate.
- Upon heating the composite to 150 degrees C., the polypropylene layer shrinks to approximately 67% of its initial length, producing an undulated structure (
FIG. 22 ). This undulated face layer is placed over a dual layer of 5.5 mil thick polyethylene over the same backing used in Examples 1 and pressed in the same manner to produce a very coherent laminate with a textile feel, and improved edge-fraying resistance. - In this example, a folded layer containing a shrinkable adhesive layer, produced by pattern bonding and shrinking is illustrated. The process of Example 6 is repeated with a layer of polyethylene adhesive placed under the spunlaced sheet before tacking to the shrinkable backing (
FIG. 24 ). The assembly is pretacked and shrunk at 150 degrees C. to produce the composite face and adhesive layer. - Subjecting this composite face/adhesive layer to the same lamination process in Example 6 over the same backing resulted in excellent adhesion, surface stability and edge fraying resistance.
- In this example, a face layer consisting of commercial velour knit is applied with the pile face down against the adhesive layer. A commercial knit nylon velour fabric that was 1.1 mm thick and weighed 12.8 oz/yd2 was laminated to the backing described above using the 5.5 mil polyethylene film described above, by pressing from one face only with a platen at 200 degrees C. for 1 second with the pile facing the adhesive film. Fabric thickness above the adhesive penetration line was approximately 0.9 mm. Excellent adhesion, surface stability and textile hand resulted. The product was highly resistant to edge fraying.
- The velour knit was laminated with the pile face up. Adhesion and edge fraying resistance were not achieved until pressure and time were increased over 3 seconds with some adhesive rising near the top of the face layer. This example is outside the scope of the present invention.
- This example illustrates how a commercial cotton denim fabric that does not respond well to thermoplastic lamination can be converted to produce high-performance composite in accordance with the present invention.
- A commercial woven cotton fabric weighing 12.8 oz/yd2 was laminated to the backing described above using the dual polyethylene films described above in a heated press. Top surface temperature was varied between 180 and 230 degrees C. Pressure at each step was varied between 150 and 10,000 psi, and the pressing time at each temperature combination was between about 0.5 and about 3 seconds. Lamination without relative ease of delamination was not achieved without penetrating the woven with polyethylene adhesive in spots or over the entire surface area. Surface stability versus traffic wear resistance also could not be achieved unless the adhesive resin rose to the top of the face layer. The cut edges of this composite frayed easily. This example is also outside the scope of the present invention.
- The cotton woven mentioned in Example 9 was prestabilized by prelaminating onto commercial pressure sensitive Duct Tape. The stabilized product was held on a table top and hand sanded on the opposing face using a pad of 150 grit sandpaper until a uniform shade change indicated that practically all of the originally exposed yarns underneath were cut, and the face fabric assumed a highly open velvet-like surface. The fabric was then laminated onto the backing used in the above examples using a single layer of polyethylene, and pressing at 10,000 psi with the top plate heated to 180 degrees C. for 3 seconds. The pressure sensitive tape was removed, with minimal tape adhesive contamination remaining in a few spots on the surface. Excellent lamination, without a tendency to fray at cut edges and with an adhesive-free textile surface was achieved. The product had excellent surface stability versus traffic-wear resistance. The cut edges were highly resistant to fraying.
- Although specific forms of the invention have been selected for illustration in the drawings and the preceding description is drawn in specific terms for the purpose of describing these forms of the invention fully and amply for one of average skill in the pertinent art, it should be understood that various substitutions and modifications which bring about substantially equivalent or superior results and/or performance are deemed to be within the scope and spirit of the following claims.
Claims (21)
1-55. (canceled)
56. A composite comprising a fibrous face layer having a top surface and a bottom surface, an adhesive layer having a top surface and a bottom surface and a backing layer, wherein the bottom surface of the fibrous face layer faces the top of the adhesive layer and the bottom surface of the adhesive layer faces the backing layer, wherein the fibrous face layer comprises a gathered fabric forming a plurality of legs extending away from the top surface of the fibrous layer, said legs comprise undulated folds or gathers from the fibrous face layer, wherein the legs of the fibrous face layer are bonded to the adhesive layer and wherein the top surface of the fibrous face layer is substantially free of adhesive,
wherein the adhesive layer is at least partially bonded to the backing layer.
57. A composite comprising a fibrous face layer having a top surface and a bottom surface, an adhesive layer having a top surface and a bottom surface and a backing layer, wherein the bottom surface of the fibrous face layer faces the top of the adhesive layer and the bottom surface of the adhesive layer faces the backing layer, wherein the fibrous face layer comprises a knit or woven fabric forming a plurality of legs extending away from the top surface of the fibrous layer, said legs comprise pile loops of the knit or woven fabric, wherein the legs of the fibrous face layer are bonded to the adhesive layer and wherein the top surface of the fibrous face layer is substantially free of adhesive,
wherein the adhesive layer is at least partially bonded to the backing layer.
58. A composite comprising a fibrous face layer having a top surface and a bottom surface, an adhesive layer having a top surface and a bottom surface and a backing layer, wherein the bottom surface of the fibrous face layer faces the top of the adhesive layer and the bottom surface of the adhesive layer faces the backing layer, wherein the fibrous face layer comprises a cut, sanded, sheared or brushed woven or knit forming a plurality of legs extending away from the top surface of the fibrous layer, said legs are made from the cut, sanded, sheared or brushed portion of the fibrous face layer, wherein the legs of the fibrous face layer are bonded to the adhesive layer and wherein the top surface of the fibrous face layer is substantially free of adhesive,
wherein the adhesive layer is at least partially bonded to the backing layer.
59. The composite of claim 56 , wherein the adhesive layer penetrates into the fibrous face layer by an application of pressure.
60. The composite of claim 57 , wherein the adhesive layer extends at least partially into the face layer by an application of pressure.
61. The composite of claim 58 , wherein the adhesive layer extends at least partially into the face layer by an application of pressure.
62. The composite of claim 56 , wherein a top portion of the fibrous face layer above the top of the adhesive layer has a thickness of about 0.5 mm to about 2.0 mm.
63. The composite of claim 56 , wherein a top portion of the fibrous face layer above the top of the adhesive layer has a basis weight of about 100 grams/m2 to about 500 grams/m2.
64. The composite of claim 56 being embossable to form a three-dimensional textured product.
65. The composite of claim 56 , wherein the fibrous face layer comprises fibers of about 0.5 denier to about 5.0 deniers.
66. The composite of claim 56 , wherein the adhesive layer penetrates into about ¼ to about ¾ of the fibrous face layer.
67. The composite of claim 57 , wherein a top portion of the fibrous face layer above the top of the adhesive layer has a thickness of about 0.5 mm to about 2.0 mm.
68. The composite of claim 57 , wherein a top portion of the fibrous face layer above the top of the adhesive layer has a basis weight of about 100 grams/m2 to about 500 grams/m2.
69. The composite of claim 57 being embossable to form a three-dimensional textured product.
70. The composite of claim 57 , wherein the fibrous face layer comprises fibers of about 0.5 denier to about 5.0 deniers.
71. The composite of claim 57 , wherein the adhesive layer penetrates into about ¼ to about ¾ of the fibrous face layer.
72. The composite of claim 58 , wherein a top portion of the fibrous face layer above the top of the adhesive layer has a thickness of about 0.5 mm to about 2.0 mm.
73. The composite of claim 58 , wherein a top portion of the fibrous face layer above the top of the adhesive layer has a basis weight of about 100 grams/m2 to about 500 grams/m2.
74. The composite of claim 58 being embossable to form a three-dimensional textured product.
75. The composite of claim 58 , wherein the fibrous face layer comprises fibers of about 0.5 denier to about 5.0 deniers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/606,765 US20100279057A1 (en) | 2003-07-01 | 2009-10-27 | Fabric-Faced Composites and Methods for Making Same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/611,769 US7622408B2 (en) | 2003-07-01 | 2003-07-01 | Fabric-faced composites and methods for making same |
US12/606,765 US20100279057A1 (en) | 2003-07-01 | 2009-10-27 | Fabric-Faced Composites and Methods for Making Same |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/611,769 Continuation US7622408B2 (en) | 2003-07-01 | 2003-07-01 | Fabric-faced composites and methods for making same |
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US20100279057A1 true US20100279057A1 (en) | 2010-11-04 |
Family
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Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/611,769 Expired - Lifetime US7622408B2 (en) | 2003-07-01 | 2003-07-01 | Fabric-faced composites and methods for making same |
US10/562,600 Abandoned US20060183389A1 (en) | 2003-07-01 | 2004-06-28 | Fabric-faced composites and methods for making same |
US12/606,765 Abandoned US20100279057A1 (en) | 2003-07-01 | 2009-10-27 | Fabric-Faced Composites and Methods for Making Same |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
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US10/611,769 Expired - Lifetime US7622408B2 (en) | 2003-07-01 | 2003-07-01 | Fabric-faced composites and methods for making same |
US10/562,600 Abandoned US20060183389A1 (en) | 2003-07-01 | 2004-06-28 | Fabric-faced composites and methods for making same |
Country Status (5)
Country | Link |
---|---|
US (3) | US7622408B2 (en) |
EP (1) | EP1644572A4 (en) |
CN (1) | CN100377867C (en) |
CA (1) | CA2533700A1 (en) |
WO (1) | WO2005003447A2 (en) |
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-
2004
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- 2004-06-28 WO PCT/US2004/023032 patent/WO2005003447A2/en active Application Filing
- 2004-06-28 EP EP04778503A patent/EP1644572A4/en not_active Withdrawn
- 2004-06-28 CN CNB2004800187065A patent/CN100377867C/en not_active Expired - Fee Related
- 2004-06-28 CA CA002533700A patent/CA2533700A1/en not_active Abandoned
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2009
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US10337141B2 (en) | 2012-04-16 | 2019-07-02 | Engineered Floors LLC | Textile floor-covering with liquid blocking surface |
US20160317715A1 (en) * | 2013-12-12 | 2016-11-03 | Hollister Incorporated | Flushable catheters |
US10420859B2 (en) * | 2013-12-12 | 2019-09-24 | Hollister Incorporated | Flushable catheters |
US10179748B2 (en) | 2013-12-17 | 2019-01-15 | Corning Incorporated | Laser processing of sapphire substrate and related applications |
US20220218119A1 (en) * | 2019-04-16 | 2022-07-14 | Tietex International, Ltd. | Mattress with flame barrier cap and related method |
CN111636134A (en) * | 2020-05-17 | 2020-09-08 | 张健 | Method for compounding pile on reverse side of fabric of warp and weft elasticity and fabric obtained by using same |
CN111636134B (en) * | 2020-05-17 | 2021-08-20 | 浙江果德未家纺有限公司 | Method for compounding pile on reverse side of warp-weft elastic fabric and obtained fabric |
Also Published As
Publication number | Publication date |
---|---|
EP1644572A2 (en) | 2006-04-12 |
CN100377867C (en) | 2008-04-02 |
WO2005003447B1 (en) | 2005-06-16 |
CA2533700A1 (en) | 2005-01-13 |
CN1816444A (en) | 2006-08-09 |
US7622408B2 (en) | 2009-11-24 |
EP1644572A4 (en) | 2010-10-27 |
US20060183389A1 (en) | 2006-08-17 |
WO2005003447A2 (en) | 2005-01-13 |
WO2005003447A3 (en) | 2005-04-28 |
US20050003141A1 (en) | 2005-01-06 |
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