US3459626A - Label carrier and release laminate - Google Patents

Description

Aug. 5, 1969 B. D. MORGAN 3,459,626

LABEL CARRIER AND RELEASE LAMINATE I Filed Nov. 6, 1964 A? Pew 49 Ca e/5e Su ar AZ 56715177446 /0 v I 20 \20 20 Pqwz'e I 190/455 vA-i' INVENTOR. BURTON D. MORGAN ATTYS United States Patent Office 3,459,626 Patented Aug. 5, 1969 3,459,626 LABEL CARRIER AND RELEASE LAMINATE Burton D. Morgan, Hudson, Ohio, assignor to Morgan Adhesives Company, Stow, Ohio, a corporation of Ohio Filed Nov. 6, 1964, Ser. No. 409,464 Int. Cl. B32b 7/14 US. Cl. 161-446 2 Claims ABSTRACT OF THE DISCLOSURE The laminate includes a relatively thick layer of pressure sensitive adhesive on a release paper, a layer of a relatively weak paper on the relatively thick adhesive layer, printing on the paper in selected areas impregnating and strengthening the paper in such areas, a relatively thin layer of pressure sensitive adhesive covering the printing and engaging the paper between local printed areas and a top carrier sheet. In use, the paper fractures and adheres to the release paper between the printed areas so that the printed areas can be adhered by the relatively thick layer of pressure sensitive adhesive onto a desired deposit area.

This invention relates to a laminate including pressure sensitive adhesive and of a character adapted to facilitate the positioning on a desired surface or surfaces of a plurality of separate labels, numbers, or other insignia which have been printed.

It is the general object of the invention to provide a label carrier and release laminate in which separately printed labels, letters, numbers, or the like, can be applied by means of pressure sensitive adhesive in properly spaced relation on a base or bases.

Another object of the invention is the provision of a laminate of the type described wherein printed insignia, such as a plurality of separate letters can be individually and properly spaced but simultaneously applied to a base, for example, a window to provide an advertising or similar message or sign.

Another object of the invention is the provision of a laminate, such as described, whereby a plurality of separate labels can be simultaneously applied by pressure sensitive adhesive to a plurality of spaced separated articles.

The foregoing objects of the invention, and other objects which will become apparent as the description proceeds, are achieved by providing a label carrier and release laminate including a bottom layer of release paper having a silicone treated upper surface, a relative thick layer of pressure sensitive adhesive on the release paper, a layer of relative weak mat paper on the relatively thick adhesive layer, nitrocellulose lacquer printing on the matt paper in selected areas impregnating and strengthening the matt paper in those areas, a relatively thin layer of pressure sensitive adhesive covering the printing and engaging the matt paper between the printed areas, and a top carrier sheet secured to the thin layer of adhesive, the combination being characterized by the matt paper fracturing and carrying with the release paper between the printed areas upon removal of the release paper leaving the printed areas with the pressure sensitive adhesive thereon on the carrier sheet so that the printed areas alone can then be pressed against a base and the carrier sheet stripped from the printed areas.

For a better understanding of the invention reference should be had to the accompanying drawings wherein:

FIGURE 1 is a fragmentary cross sectional view on an enlarged scale of a laminate incorporating the features of the invention;

FIGURE 2 is a view of the laminate of FIGURE 1, still in cross section, but with the release paper and associated parts removed to prepare the laminate for the application to a base or bases of the separately printed labels or insignia; and

FIGURE 3 is a view still in cross section but illustrating the separate labels or insignia now applied by pressure sensitive adhesive to a base.

In the drawings, the numeral 10 indicates generally a release paper of a usual type and thickness, for example a kraft paper having a thickness of .005 inch. The upper surface of the release paper 10 is treated with a thin coat 12 of silicone base material, for example .00035 inch thick for facilitating the separation of the release paper 10 from the pressure sensitive adhesive incorporated in the laminate.

Layer 14 of the laminate is a relatively thick coating of pressure sensitive adhesive of known and conventional type. For example, this coating can be .002 inch thick.

On top of the coating 14 of pressure sensitive adhesive is a layer 16 of a relatively weak matt paper, usually between about .002 and about .004 inch. This matt paper layer 16 is made, for example, of half strength having a greater amount of filler, such as talc therein. The layer 16 of weak matt paper is of sufficient strength so that it can be handled in the laminating operation, but is relatively weak so that it can be torn or fractured in the manner hereinafter more specifically set forth.

The layer 16 of weak matt paper has printed theron at 18, specifically with nitrocellulose lacquer in one or more colors the desired labels or other insignia. The printing impregnates down into the weak matt paper to some extent, for example as indicated by the dotted lines 20, to thereby strengthen the matt paper in the areas immediately beneath the printing.

Positioned on top of the printing 18 and extending over the surface of the printing and over the unprinted surface of the layer 16 of weak matt paper is a relatively thin coating 22 of pressure sensitive adhesive of conventional type, for example a thickness of .0005 inch. Se-

cured to the top of the coating 22 of pressure adhesive is a carrier sheet 24 of paper or plastic, for example having a thickness of between about .002 and about .004.

The laminate described can be made up with conventional methods and apparatus, the printing 18 being applied to the layer 16 of weak matt paper either before it is incorporated into the laminate or after the layer 16 of matt paper has been applied to a base portion of the laminate comprising the coating 14 of pressure sensitive adhesive the silicone coating 12 and the release paper 10. In the event of the second procedure described, after the printing 18 has been applied; to the upper surface of the layer 16 of matt paper as it is carried on the base portion of the laminate the final coating of pressure sensitive adhesive 22 and the carrier sheet 24 are applied on top to complete the laminate of FIGURE 1.

Now in the use of the laminate of FIGURE 1 when it becomes advisable to apply the printing 18 of the labels or other insignia to a base the release paper 10 is stripped away from the back or underside of the laminate and this carries with the release paper the silicone coating 12 and all of those portions of the coating 14 of pressures sensitive adhesive and those portions of the layer 16 of the weak matt paper between the printed labels or insignia. This results from the fact that the matt paper adheres to the thicker coating 14 of pressure sensitive adhesive more strongly than it adheres to the thinner coating 22 of pressure sensitive adhesive and the matt paper fractures entirely around each printing area. The result is a laminate as it appears in FIGURE 2 wherein the fracture lines of the layer 16 of weak matt paper are indicated by the numerals 26, with these fracture lines extending down into the coating 14 of pressure sensitive adhesive. Thus separate printed labels or other insignia are now carried in spaced relation by the relatively thin coating 22 of pressure sensitive adhesive all supported on the carrier sheet 24. It should be understood that the adhesion between the areas of printing 18 and the relatively thin coating 22 of pressure sensitive adhesive is greater than the adhesion between the thicker coating 14 of pressure sensitive adhesive and the silicone release coat 12 carried by the release paper 10.

With the laminate now appearing as shown in FIG- URE 2 it is a simple matter to apply the printed insignia to a base 30 in spaced relation as shown in FIGURE 3 whereupon the carrier sheet 24 and its adherent coating 22 of pressure sensitive adhesive are stripped away to leave the printed insignia in the desired. spaced relation on the base 30 and held thereon by the portions of the coating 14 of pressure sensitive adhesive beneath the printing 18.

With the laminate of the invention printed labels can be applied to the tops of a plurality of bottles positioned in a case, to a plurality of boxes, or the like. Again, separately printed letters, numerals, forming appropriate advertising or identification can be applied in the desired spaced relation to a window or other base to deliver a desired message or identification.

While a certain representative embodiment and details have been shown for the purpose of illustrating the invention, it will be apparent to those skilled in this art that various changes and modifications may be made therein without departing from the spirit or scope of the invention.

What is claimed is:

1. A label carrier and release laminate including a bottom layer of release paper having a silicone-treated upper surface, a relatively thick layer of pressure sensitive adhesive about .002 inch thick on the treated surface of the release paper, a layer of relatively weak matt paper on the relatively thick adhesive layer, a nitrocellulose lacquer printing impregnating the matt paper in selected areas with the matt paper strengthened in those areas by the absorbed printing, a relatively thin layer of pressure sensitive adhesive covering the printing and engaging the matt paper on all unimpregnated portions, and a top carrier sheet secured to the thin layer of adhesive, which is characterized by the matt paper separating at the boundaries between the impregnated and unimpregnated areas thereof so that only the unimpregnated areas are carried with the release paper upon removal of the release paper, leaving the impregnated areas with the thick layer of pressure sensitive adhesive thereon on the carrier sheet so that the impregnated areas alone can then be pressed against a base and the carrier sheet stripped from the impregnated areas.

2. A label carrier and release laminate including a bottom layer of release paper having a release treated upper surface, a layer of relatively thick pressure sensitive adhesive about .002 inch thick on the treated surface of the release paper, a layer of relatively weak matt paper on said adhesive layer, a nitrocellulose lacquer printing impregnating the paper and being absorbed in selected areas with the absorbed printing strengthening the paper in those areas, a thin layer of pressure sensitive adhesive about .005 inch thick covering the printing and engaging the paper between the printed areas, and a top carrier sheet secured to the thin layer of adhesive the paper being adapted to tear at the edges of the impregnated areas and carry the unimpregnated areas with the release paper upon removal of the release paper, leaving the impregnated areas with the relatively thick pressure sensitive adhesive layer thereon on the carrier sheet so that the impregnated areas alone can then be pressed against a base and the carrier sheet stripped from the impregnated areas.

FOREIGN PATENTS 589,276 12/1959 Canada.

ROBERT F. BURNETT, Primary Examiner R. J. ROCHE, Assistant Examiner 1 US. Cl. X.R.

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