US3744383A - Banded plastic bag manufacturing method and apparatus - Google Patents

Banded plastic bag manufacturing method and apparatus Download PDF

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US3744383A
US3744383A US00207373A US3744383DA US3744383A US 3744383 A US3744383 A US 3744383A US 00207373 A US00207373 A US 00207373A US 3744383D A US3744383D A US 3744383DA US 3744383 A US3744383 A US 3744383A
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bag
web
bands
sheet portion
sheet
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US00207373A
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J Finch
D Misner
J Brooks
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James River Corp of Nevada
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Crown Zellerbach Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00Making flexible containers, e.g. envelopes or bags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00Making flexible containers, e.g. envelopes or bags
    • B31B70/74Auxiliary operations
    • B31B70/81Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/812Applying patches, strips or strings on sheets or webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00Shape of flexible containers
    • B31B2160/10Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00Making flexible containers, e.g. envelopes or bags
    • B31B70/74Auxiliary operations
    • B31B70/81Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/812Applying patches, strips or strings on sheets or webs
    • B31B70/8123Applying strips
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1052Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062Prior to assembly
    • Y10T156/1075Prior to assembly of plural laminae from single stock and assembling to each other or to additional lamina
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/13Severing followed by associating with part from same source

Definitions

  • the present invention overcomes the foregoing difficulties by providing a method and apparatus for the manufacture of banded bags wherein a single imprinted web may be utilized to form both the bags and the bands attached thereto. Precisely controlled registry may be maintained between the bands and the bag faces to which they are attached at all times.
  • anintegral web of flexible material is longitudinally folded to form juxtaposed sheets, one of such sheets being imprinted with a plurality of bag bands over a first portion thereof and a plurality of bag faces over a second portion thereof. While the web is being transported in a predetermined general direction the first sheet portion is separated from the second sheet portion and the imprinted bands are placed into juxtaposed registry with the bag faces at a predetermined location on the faces. The bands are then attached to the bag faces at the predetermined location. To compensate for the transposition of the imprinted bands relative to the bag faces an adjustable compensator is utilized to insure accurate placement of the bands relative to the bag faces prior to their attachment, said attachment preferably being accomplished simultaneously with the formation of the bags by a sealing knife. In the event the bands are to be used as returnable promotional coupons or the like, perforations are formed therein to facilitate their removal from the bags.
  • the invention has as its object, among others, the provision of an im proved method and apparatus for forming bags and bands from a single imprinted web and accurately placing the bands on the bag faces and attaching same.
  • FIG. 1 is a perspective view of a banded bag constructed in accordance with the teachings of thepresent invention and illustrating a portion of the band thereof being removed from the bag by the customer;
  • FIG. 2 is a fragmentary schematic isometric view of apparatus constructed in accordance with the teachings of the invention.
  • FIG. 3 is a fragmentary plan view of the apparatus shown in FIG. 2;
  • FIG. 4 is a partial, fragmentary, cross-sectional view taken alongthe line 4-4 of FIG. 3.
  • a banded bag constructed in accordance with the teachings of the present invention is indicated generally by means of reference numeral 11 and comprises a bag 12 constructed of a heatsealable material, such as polyethylene, and a band 13 formed of like material.
  • Bag 12 comprises an upper bag face 14 and a lower bag face 15 which are secured at the edges thereof by means of a conventional heat seal.
  • the closed end 16 of the bag may be of any suitable construction since the principles of the present invention adapt themselves to a wide variety of bag designs. In the interest of simplicity closed end 16 has been illustrated as being a simple straight fold formed by the overlapping of bag faces 14 and 15 from an integral sheet. It will be appreciated, however, that a square bottom or other suitable bag closed-end construction might be utilized.
  • a web 20 constructed of flexible heat-scalable material such as polyethylene from which the banded bags are manufactured is illustrated.
  • the web is unwound by conventional mechanism from a parent roll (not shown).
  • the web is moved in a general direction illustrated by direction arrow A with an intermittent motion so that it has periods of rest.
  • Suitable conventional mechanism (not shown) folds the web longitudinally to provide two overlying or juxtaposed sheets or plies 21 and 22.
  • upper sheet 22 is greater in width than lower sheet 21 and comprises a first portion within the general area defined by bracket B which is adapted for subsequent conversion into bag faces and an area generally defined by bracket C which is adapted to be converted into bands attached to said bag faces.
  • bracket B which is adapted for subsequent conversion into bag faces
  • bracket C which is adapted to be converted into bands attached to said bag faces.
  • the upper web sheet 22 is suitably imprinted in these portions.
  • sheet portion C is separated from sheet portion B by means of a slitter knife 24 which is disposed along the path of movement of upper sheet 22.
  • sheet portion C which comprises a plurality of bag bands disposed in end-toend fashion, is laterally displaced relative to the sheet portion B by means of rotatable turning arms 25 and 26.
  • Turning arms 25 and 26 are suitably mounted so that they are disposed at an approximately angle to the direction of movement of the imprinted web 20 and in spaced parallel relationship to one another as shown.
  • sheet portion C passes around turning arm 26 it should be noted that the printed side of the sheet portion is still facing upwardly while sheet portion C itself has been laterally displaced relative to sheet portion B to a desired degree. Because of this lateral displacement the individual bands comprising sheet portion C are normally out of registry, with respect to the bag faces of sheet portion B. To compensate for this and insure accurate registry of each individual band with respect to each bag face, sheet portion C is directed to a compensator device which insures accurate alignment therebetween.
  • the compensator device comprises a plurality of rollers 28, 29 and 30. Rollers 28 and 29 are joumaled for rotatable movement in fixed end brackets 31 and 32 which maintain rollers 28 and 29 in fixed relation to one another and closely adjacent to the upper surface of sheet portion B.
  • Roller 30 on the other hand is rotatably journaled in a bracket 33 which is threadedly mounted at the ends thereof on a pair of upstanding rotatable threaded members 34 and 35.
  • a chain and sprocket arrangement indicated generally by means of reference numeral 36 the bottoms of upstanding threaded members 34 and 35 are interconnected for joint rotatable movement.
  • a handle 37 affixed to the top of threading member 35, the operator can selectively move bracket 33, and hence roller 30, in an up and down direction by virtue of the interaction of the threads of the bracket 33 and upstanding members 34 and 35.
  • Sheet portion C passes under roller 28 and thence upwardly and over roller 30. Sheet portion C then moves downwardly and under roller 29 into close proximity with sheet portion B at a predetermined location thereon.
  • the apparatus according to the present invention incorporates a perforator mechanism through which sheet portion C passes prior to its attachment to the bag face.
  • perforator device 40 is not shown in FIG. 2 and reference may be had to FIGS. 3 and 4 for details of this particular mechanism.
  • the perforator device 40 includes a plurality of perforator teeth 41 which are mounted in unitary fashion at the end of a solenoid device (not shown) of conventional construction and disposed within housing 42. Perforator teeth 41 are disposed over a plate 43 over which sheet portion C rides thereby maintaining the sheet portion out of engagement with the remainder of the web until the perforation operation is completed.
  • the solenoid is actuated to drive teeth 41 into and through sheet portion C thereby forming perforations 44 which may be seen with greatest clarity in FIG. 2.
  • the perforator has two lines of perforator teeth mounted in unitary fashion for simultaneous movement by the solenoid. The perforator device thus perforates the trailing edge of one band and the leading edge of the following band simultaneously.
  • the registered bag After passing from the perforator device 40, the registered bag faces and bands pass into the final stage of the bag banding operation; namely, the sealing and cutting stage.
  • a conventional heat-sealing knife 47 is brought into engagement with the web during the intervals the web is stopped during its intermittent motion.
  • the heated knife 47 passes through sheet portion C, sheet portion B and lower sheet 21 thereby substantially simultaneously forming the bag edges and applying the band thereto.
  • Any suitable conventional mechanism may be utilized to operate the heat-sealing knife.
  • the end result is the finished banded bag; product of FIG. 1 wherein the band is shown as having been partially removed from the bag by the customer.
  • step of positioning said first sheet portion relative to said second sheet portion comprises laterally displacing said first sheet portion relative to said second sheet portion with the bands comprising said first sheet portion remaining integrally connected together in web form and compensating for said lateral displacement to provide for accurate registry between the bands and the bag faces.
  • said positioning means comprising displacement means for laterally displacing said band web relative to said bag face web and compensator means disposed along the path of said band web and accumulating a plurality of bag bands thereon prior to attachment thereof to said bag faces, said compensator means comprising a plurality of spaced rollers which provide transport support for said band web and adjustment means for selectively varying the distance between the rollers and the length of the band web supported by said rollers; and

Abstract

An apparatus and method for manufacturing banded plastic bags from a unitary web imprinted with bag faces and bands. The bands are separated from the remainder of the web, accurately positioned relative to the bag faces and secured thereto.

Description

United States Patent [1 1 Finch et al. July 10, 1973 BANDED PLASTIC BAG MANUFACTURING [56] References Cited METHOD AND APPARATUS UNITED STATES PATENTS [75] Inventors: Jerry L. Finch; Donald E. Misner; 2,815,620 12/1957 Prodigo 93/8 WA X James L. Brooks, all of Greenburg, 3,655,475 4/1972 Stelling, Jr. et a1 156/512 X d 1,169,098 1/1916 Thornton 156/512 3,568,576 3/1971 Lehmacher et al 93/33 H [73] Asslgneez Crown Zellerbach Corporation, San
Francisco Primary ExaminerAndrew R. Juhasz [22] Filed: Dec. 13, 1971 Assistant Examiner-James F. Coan An Th R. L t l. 21 Appl. No.: 207,373 was ampe e a [57] ABSTRACT [52] 93/8 93/8 An apparatus and method for manufacturing banded mt Cl 5 plastic bags from a unitary web imprinted with bag Field of Search n 93/35 35 3 3 faces and bands. The bands are separated from the re 93/DlG. 1, 8 W, 8 WA, 34; 156/300, 301, 302, 303, 271, 264, 512, 519
mainder of the web, accurately positioned relative to the bag faces and secured thereto.
6 Claims, 4 Drawing Figures PATENIED JUL 1 0 3. 744.383
41 4. Hi. l] [M3 BANDED PLASTIC BAG MANUFACTURING METHOD AND APPARATUS BACKGROUND OF THE INVENTION This invention relates to the manufacture of banded bags from plastic heat-sealable sheet material, such as Pliofilm and polyolefin film, for example, polyethylene and polypropylene.
In the packaging field increasing usage has been made of promotional advertising bands attached to product bags, such as bread bags. The conventional practice for the manufacture of these banded bags has been for the packager to utilize a multi-stage operation. The bands and the bags normally would be printed separately and converted from separate imprinted roll stock. When applying the bands during the bag manufacturing process from these separate roll stocks it has been extremely difficult to register the bands with the bag faces. Consequently, this conventional prior art approach results in a multi-stage manufacturing process with consequent increased costs and an inferior product.
SUMMARY AND OBJECTS OF THE INVENTION The present invention overcomes the foregoing difficulties by providing a method and apparatus for the manufacture of banded bags wherein a single imprinted web may be utilized to form both the bags and the bands attached thereto. Precisely controlled registry may be maintained between the bands and the bag faces to which they are attached at all times.
Summarizing the present invention, anintegral web of flexible material is longitudinally folded to form juxtaposed sheets, one of such sheets being imprinted with a plurality of bag bands over a first portion thereof and a plurality of bag faces over a second portion thereof. While the web is being transported in a predetermined general direction the first sheet portion is separated from the second sheet portion and the imprinted bands are placed into juxtaposed registry with the bag faces at a predetermined location on the faces. The bands are then attached to the bag faces at the predetermined location. To compensate for the transposition of the imprinted bands relative to the bag faces an adjustable compensator is utilized to insure accurate placement of the bands relative to the bag faces prior to their attachment, said attachment preferably being accomplished simultaneously with the formation of the bags by a sealing knife. In the event the bands are to be used as returnable promotional coupons or the like, perforations are formed therein to facilitate their removal from the bags.
From the preceding it is seen that the invention has as its object, among others, the provision of an im proved method and apparatus for forming bags and bands from a single imprinted web and accurately placing the bands on the bag faces and attaching same.
Other objects will become apparent from the following more detailed description and accompanying drawings in which:
FIG. 1 is a perspective view of a banded bag constructed in accordance with the teachings of thepresent invention and illustrating a portion of the band thereof being removed from the bag by the customer;
FIG. 2 is a fragmentary schematic isometric view of apparatus constructed in accordance with the teachings of the invention;
FIG. 3 is a fragmentary plan view of the apparatus shown in FIG. 2; and
FIG. 4 is a partial, fragmentary, cross-sectional view taken alongthe line 4-4 of FIG. 3.
DETAILED DESCRIPTION OF THE INVENTION Referring now to FIG. 1, a banded bag constructed in accordance with the teachings of the present invention is indicated generally by means of reference numeral 11 and comprises a bag 12 constructed of a heatsealable material, such as polyethylene, and a band 13 formed of like material. Bag 12 comprises an upper bag face 14 and a lower bag face 15 which are secured at the edges thereof by means of a conventional heat seal. The closed end 16 of the bag may be of any suitable construction since the principles of the present invention adapt themselves to a wide variety of bag designs. In the interest of simplicity closed end 16 has been illustrated as being a simple straight fold formed by the overlapping of bag faces 14 and 15 from an integral sheet. It will be appreciated, however, that a square bottom or other suitable bag closed-end construction might be utilized.
Referring now to FIG. 2, a web 20 constructed of flexible heat-scalable material such as polyethylene from which the banded bags are manufactured is illustrated. The web is unwound by conventional mechanism from a parent roll (not shown). The web is moved in a general direction illustrated by direction arrow A with an intermittent motion so that it has periods of rest. Suitable conventional mechanism (not shown) folds the web longitudinally to provide two overlying or juxtaposed sheets or plies 21 and 22. It will be noted that upper sheet 22 is greater in width than lower sheet 21 and comprises a first portion within the general area defined by bracket B which is adapted for subsequent conversion into bag faces and an area generally defined by bracket C which is adapted to be converted into bands attached to said bag faces. It should be noted that the upper web sheet 22 is suitably imprinted in these portions.
As the web is moved along in the direction of arrow A, sheet portion C is separated from sheet portion B by means of a slitter knife 24 which is disposed along the path of movement of upper sheet 22. After being separated from sheet portion B, sheet portion C, which comprises a plurality of bag bands disposed in end-toend fashion, is laterally displaced relative to the sheet portion B by means of rotatable turning arms 25 and 26. Turning arms 25 and 26 are suitably mounted so that they are disposed at an approximately angle to the direction of movement of the imprinted web 20 and in spaced parallel relationship to one another as shown.
After sheet portion C passes around turning arm 26 it should be noted that the printed side of the sheet portion is still facing upwardly while sheet portion C itself has been laterally displaced relative to sheet portion B to a desired degree. Because of this lateral displacement the individual bands comprising sheet portion C are normally out of registry, with respect to the bag faces of sheet portion B. To compensate for this and insure accurate registry of each individual band with respect to each bag face, sheet portion C is directed to a compensator device which insures accurate alignment therebetween. The compensator device comprises a plurality of rollers 28, 29 and 30. Rollers 28 and 29 are joumaled for rotatable movement in fixed end brackets 31 and 32 which maintain rollers 28 and 29 in fixed relation to one another and closely adjacent to the upper surface of sheet portion B. Roller 30 on the other hand is rotatably journaled in a bracket 33 which is threadedly mounted at the ends thereof on a pair of upstanding rotatable threaded members 34 and 35. Through a chain and sprocket arrangement indicated generally by means of reference numeral 36 the bottoms of upstanding threaded members 34 and 35 are interconnected for joint rotatable movement. By means of a handle 37 affixed to the top of threading member 35, the operator can selectively move bracket 33, and hence roller 30, in an up and down direction by virtue of the interaction of the threads of the bracket 33 and upstanding members 34 and 35.
Sheet portion C passes under roller 28 and thence upwardly and over roller 30. Sheet portion C then moves downwardly and under roller 29 into close proximity with sheet portion B at a predetermined location thereon. In some situations it may be desirable to perforate the bag bands so that a portion thereof might be readily removed by the customer for use as a returnable coupon, for example. For this purpose, the apparatus according to the present invention incorporates a perforator mechanism through which sheet portion C passes prior to its attachment to the bag face. For the sake of clarity, perforator device 40 is not shown in FIG. 2 and reference may be had to FIGS. 3 and 4 for details of this particular mechanism. The perforator device 40 includes a plurality of perforator teeth 41 which are mounted in unitary fashion at the end of a solenoid device (not shown) of conventional construction and disposed within housing 42. Perforator teeth 41 are disposed over a plate 43 over which sheet portion C rides thereby maintaining the sheet portion out of engagement with the remainder of the web until the perforation operation is completed. During stoppage of the web in its aforedescribed intermittent movement, the solenoid is actuated to drive teeth 41 into and through sheet portion C thereby forming perforations 44 which may be seen with greatest clarity in FIG. 2. Preferably, the perforator has two lines of perforator teeth mounted in unitary fashion for simultaneous movement by the solenoid. The perforator device thus perforates the trailing edge of one band and the leading edge of the following band simultaneously.
After passing from the perforator device 40, the registered bag faces and bands pass into the final stage of the bag banding operation; namely, the sealing and cutting stage. At this stage, a conventional heat-sealing knife 47 is brought into engagement with the web during the intervals the web is stopped during its intermittent motion. The heated knife 47 passes through sheet portion C, sheet portion B and lower sheet 21 thereby substantially simultaneously forming the bag edges and applying the band thereto. Any suitable conventional mechanism may be utilized to operate the heat-sealing knife. The end result is the finished banded bag; product of FIG. 1 wherein the band is shown as having been partially removed from the bag by the customer.
We claim: I
1. In a method of manufacturing banded bags from heat-scalable flexible material, the improvement comprising:
a. forming an integral web of heat-scalable flexible material longitudinally folded to form two juxtaposed sheets, one of said sheets being imprinted with a plurality of bag bands over a first portion thereof and a plurality of bag faces over a second portion thereof, the other of said sheets and the second portion of said one sheet comprising the material from which the bags are to be formed;
b. transporting said web in a predetermined general direction;
0. separating said first sheet portion from said second sheet portion and said other sheet while maintaining said second sheet portion and said other sheet in juxtaposition;
d. positioning said first sheet portion relative to said second sheet portion during said web transport so that said first sheet portion is juxtaposed relative to said second sheet portion and said imprinted bands are placed into registry with said bag faces at a predetermined location on said faces; and
e. at spaced intervals along said web, heat-sealing said juxtaposed first and second sheet portions and said other sheet in a direction transverse to the direction of movement of said web to form sealed bag side edges and attach said bands to said bag faces.
2. The method of claim 1 wherein the step of positioning said first sheet portion relative to said second sheet portion comprises laterally displacing said first sheet portion relative to said second sheet portion with the bands comprising said first sheet portion remaining integrally connected together in web form and compensating for said lateral displacement to provide for accurate registry between the bands and the bag faces.
3. The method of claim 1 wherein attachment of said bands to said bag faces is effected substantially simultaneously with the formation of said sealed bag edges.
4. The method of claim 1 including the additional step of perforating said bands to facilitate their removal from the bag faces after their attachment thereto.
5. In an apparatus for fabricating banded bags from an imprinted integral web of flexible material longitudinally folded to form juxtaposed sheets, the improvement comprising:
a. means for severing one of said sheets to form a band web comprising a plurality of imprinted bands and an imprinted bag face web comprising a plurality of imprinted bag faces;
b. means for positioning said band web relative to said bag face web so that the imprinted bands are positioned relative to the bag faces with the printing thereof in registry, said positioning means comprising displacement means for laterally displacing said band web relative to said bag face web and compensator means disposed along the path of said band web and accumulating a plurality of bag bands thereon prior to attachment thereof to said bag faces, said compensator means comprising a plurality of spaced rollers which provide transport support for said band web and adjustment means for selectively varying the distance between the rollers and the length of the band web supported by said rollers; and
c. means for'attaching said imprinted bands to said bag faces.
6. The improvement according to claim 5 wherein said attaching means comprises a heat sealing knife.

Claims (6)

1. In a method of manufacturing banded bags from heat-sealable flexible material, the improvement comprising: a. forming an integral web of heat-sealable flexible material longitudinally folded to form two juxtaposed sheets, one of said sheets being imprinted with a plurality of bag bands over a first portion thereof and a plurality of bag faces over a second portion thereof, the other of said sheets and the second portion of said one sheet comprising the material from which the bags are to be formed; b. transporting said web in a predetermined general direction; c. separating said first sheet portion from said second sheet portion and said other sheet while maintaining said second sheet portion and said other sheet in juxtaposition; d. positioning said first sheet portion relative to said second sheet portion during said web transport so that said first sheet portion is juxtaposed relative to said second sheet portion and said imprinted bands are placed into registry with said bag faces at a predetermined location on said faces; and e. at spaced intervals along said web, heat-sealing said juxtaposed first and second sheet portions and said oTher sheet in a direction transverse to the direction of movement of said web to form sealed bag side edges and attach said bands to said bag faces.
2. The method of claim 1 wherein the step of positioning said first sheet portion relative to said second sheet portion comprises laterally displacing said first sheet portion relative to said second sheet portion with the bands comprising said first sheet portion remaining integrally connected together in web form and compensating for said lateral displacement to provide for accurate registry between the bands and the bag faces.
3. The method of claim 1 wherein attachment of said bands to said bag faces is effected substantially simultaneously with the formation of said sealed bag edges.
4. The method of claim 1 including the additional step of perforating said bands to facilitate their removal from the bag faces after their attachment thereto.
5. In an apparatus for fabricating banded bags from an imprinted integral web of flexible material longitudinally folded to form juxtaposed sheets, the improvement comprising: a. means for severing one of said sheets to form a band web comprising a plurality of imprinted bands and an imprinted bag face web comprising a plurality of imprinted bag faces; b. means for positioning said band web relative to said bag face web so that the imprinted bands are positioned relative to the bag faces with the printing thereof in registry, said positioning means comprising displacement means for laterally displacing said band web relative to said bag face web and compensator means disposed along the path of said band web and accumulating a plurality of bag bands thereon prior to attachment thereof to said bag faces, said compensator means comprising a plurality of spaced rollers which provide transport support for said band web and adjustment means for selectively varying the distance between the rollers and the length of the band web supported by said rollers; and c. means for attaching said imprinted bands to said bag faces.
6. The improvement according to claim 5 wherein said attaching means comprises a heat sealing knife.
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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3420622A1 (en) * 1984-06-02 1985-12-05 Tetra Pak Developpement S.A., Pully PACKAGING MATERIAL RAIL WITH A PLASTIC FILM
US4605464A (en) * 1983-05-25 1986-08-12 Slevin Julian B Method and machine for producing complance carrier cartons
US5466321A (en) * 1993-12-17 1995-11-14 Sanki Machinery Co., Ltd. Method of and apparatus for superposing strip members
US5597437A (en) * 1995-01-12 1997-01-28 Procter & Gamble Zero scrap absorbent core formation process
US5705013A (en) * 1995-02-10 1998-01-06 The Procter & Gamble Company Method for manufacturing extensible side panels for absorbent articles
FR2754210A1 (en) * 1996-10-03 1998-04-10 Plastiques C I M Method of making packaging sachets
US6171432B1 (en) * 1991-09-27 2001-01-09 Johnson & Johnson, Inc. Method of making a no waste absorbent product
US6213642B1 (en) * 1999-07-30 2001-04-10 International Paper Company Paper bag with tear strip having indicia
US6234673B1 (en) * 2000-03-06 2001-05-22 Boris M. Tonoff Total value package
US6536951B1 (en) * 2001-09-26 2003-03-25 Inno-Pak, Inc. Plastic bag with header formed by overlay strip
US20030108253A1 (en) * 2001-06-29 2003-06-12 Daniels Mark E. Plastic shopping bag with promotional strip AD
DE10235352A1 (en) * 2002-08-02 2004-02-19 Lemo Maschinenbau Gmbh Method for producing a carrier bag out of a continuous plastic hose involves attachment, preferably by glueing, of an additional plastic strip whose length is smaller than the bag height
US20040066982A1 (en) * 2001-01-08 2004-04-08 Urman Craig A. Enviro package consisting of a sealable bag with a handle for horizontal transport
WO2006022760A2 (en) * 2004-08-24 2006-03-02 Daniels Mark E T-shirt style bag with registered advertising strip, apparatus and method for making same
US20060133701A1 (en) * 2004-12-20 2006-06-22 Daniels Mark E Side seam bag with registered, perforated, promotional strips
US8142592B2 (en) 2008-10-02 2012-03-27 Mylan Inc. Method for making a multilayer adhesive laminate
US20140138278A1 (en) * 2012-11-20 2014-05-22 Mpt, Inc. Advertising Media for Application to Packaging Materials
US11420796B2 (en) * 2018-07-13 2022-08-23 Mondi Ag Recyclable bag

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605464A (en) * 1983-05-25 1986-08-12 Slevin Julian B Method and machine for producing complance carrier cartons
DE3420622A1 (en) * 1984-06-02 1985-12-05 Tetra Pak Developpement S.A., Pully PACKAGING MATERIAL RAIL WITH A PLASTIC FILM
US4632854A (en) * 1984-06-02 1986-12-30 Tetra Pak Developpement S.A. Web of packaging material with a sheet of plastics
US6171432B1 (en) * 1991-09-27 2001-01-09 Johnson & Johnson, Inc. Method of making a no waste absorbent product
US5466321A (en) * 1993-12-17 1995-11-14 Sanki Machinery Co., Ltd. Method of and apparatus for superposing strip members
US5597437A (en) * 1995-01-12 1997-01-28 Procter & Gamble Zero scrap absorbent core formation process
US5695846A (en) * 1995-01-12 1997-12-09 The Procter & Gamble Company Zero scrap absorbent core formation process and products derived from web-based absorbent materials
US5705013A (en) * 1995-02-10 1998-01-06 The Procter & Gamble Company Method for manufacturing extensible side panels for absorbent articles
FR2754210A1 (en) * 1996-10-03 1998-04-10 Plastiques C I M Method of making packaging sachets
US6213642B1 (en) * 1999-07-30 2001-04-10 International Paper Company Paper bag with tear strip having indicia
US6234673B1 (en) * 2000-03-06 2001-05-22 Boris M. Tonoff Total value package
US7364360B2 (en) 2001-01-08 2008-04-29 Urman Craig A Package for horizontal transport
US20040066982A1 (en) * 2001-01-08 2004-04-08 Urman Craig A. Enviro package consisting of a sealable bag with a handle for horizontal transport
US20030108253A1 (en) * 2001-06-29 2003-06-12 Daniels Mark E. Plastic shopping bag with promotional strip AD
US6773162B2 (en) * 2001-06-29 2004-08-10 Mark E. Daniels Plastic shopping bag with promotional strip ad
US20040161176A1 (en) * 2001-06-29 2004-08-19 Daniels Mark E. Plastic shopping bag with promotional strip AD
US20040165795A1 (en) * 2001-06-29 2004-08-26 Daniels Mark E. Plastic shopping bag with promotional strip ad
US6840676B2 (en) 2001-06-29 2005-01-11 Mark E. Daniels Plastic shopping bag with promotional strip ad
US6843601B2 (en) 2001-06-29 2005-01-18 Mark E. Daniels Plastic shopping bag with promotional strip ad
US6536951B1 (en) * 2001-09-26 2003-03-25 Inno-Pak, Inc. Plastic bag with header formed by overlay strip
DE10235352A1 (en) * 2002-08-02 2004-02-19 Lemo Maschinenbau Gmbh Method for producing a carrier bag out of a continuous plastic hose involves attachment, preferably by glueing, of an additional plastic strip whose length is smaller than the bag height
DE10235352B4 (en) * 2002-08-02 2005-03-31 Lemo Maschinenbau Gmbh Method for producing a carrier bag made of plastic film with additional strips
WO2006022760A3 (en) * 2004-08-24 2006-05-26 Mark E Daniels T-shirt style bag with registered advertising strip, apparatus and method for making same
WO2006022760A2 (en) * 2004-08-24 2006-03-02 Daniels Mark E T-shirt style bag with registered advertising strip, apparatus and method for making same
US20060133701A1 (en) * 2004-12-20 2006-06-22 Daniels Mark E Side seam bag with registered, perforated, promotional strips
US8142592B2 (en) 2008-10-02 2012-03-27 Mylan Inc. Method for making a multilayer adhesive laminate
US9731490B2 (en) 2008-10-02 2017-08-15 Mylan Inc. Method for making a multilayer adhesive laminate
US10272656B2 (en) 2008-10-02 2019-04-30 Mylan Inc. Method for making a multilayer adhesive laminate
US20140138278A1 (en) * 2012-11-20 2014-05-22 Mpt, Inc. Advertising Media for Application to Packaging Materials
US10319058B2 (en) 2012-11-20 2019-06-11 Mpt, Inc. Method for applying advertising media to packaging, method of advertising, and system for applying a communication member on a packaging material
US10430908B2 (en) 2012-11-20 2019-10-01 Mpt, Inc. Advertising media for application to packaging materials
US11420796B2 (en) * 2018-07-13 2022-08-23 Mondi Ag Recyclable bag

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