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WO1999056953A1 - Conditionnement de carton contrecolle et procede de fabrication - Google Patents

Conditionnement de carton contrecolle et procede de fabrication Download PDF

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Publication number
WO1999056953A1
WO1999056953A1 PCT/US1999/009992 US9909992W WO9956953A1 WO 1999056953 A1 WO1999056953 A1 WO 1999056953A1 US 9909992 W US9909992 W US 9909992W WO 9956953 A1 WO9956953 A1 WO 9956953A1
Authority
WO
WIPO (PCT)
Prior art keywords
base layer
layer
unbleached
carton
laminated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1999/009992
Other languages
English (en)
Inventor
Roger P. Hoffman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoffman Group Ltd
Original Assignee
Hoffman Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoffman Group Ltd filed Critical Hoffman Group Ltd
Publication of WO1999056953A1 publication Critical patent/WO1999056953A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/42—Applications of coated or impregnated materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38—Packaging materials of special type or form
    • B65D2565/381—Details of packaging materials of special type or form
    • B65D2565/382—Details of packaging materials of special type or form made of special paper
    • B65D2565/383—Details of packaging materials of special type or form made of special paper made of recycled paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D21H11/04—Kraft or sulfate pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/14—Secondary fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/32—Multi-ply with materials applied between the sheets
    • D21H27/34—Continuous materials, e.g. filaments, sheets, nets
    • D21H27/36—Films made from synthetic macromolecular compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/38—Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging

Definitions

  • paperboard or "fiberboard” are generally considered to fall into two broad categories: 1) Containerboard - these boards are used to make corrugated containers and include corrugating medium and linerboard; and 2) Boxboard - which is used to make folding cartons such as boxes, and the like. It has been recognized that sharp, precise graphics cannot be obtained when printing directly on paperboard products, due to the fact that the paperboard printing surface is relatively rough or uneven, as compared with clay coated paper. Further, paperboard normally has a grey or brown color, and printing directly on the darker color of the paperboard will tend to distract from the resolution of the graphs.
  • clay-coating may be applied directly to the paperboard substrate to improve the printing surface.
  • the base material is bleached and in other cases it is multi-layer recycled or unbleached board.
  • the clay- coated paperboard is relatively thick and rough as compared to publication grade paper and though modern web printing processes can be employed, the quality of the graphic images achieved cannot approach those printed on publication grade paper.
  • the preponderance of white packaging has a surface made with bleached pulp or clay- coated bleached pulp.
  • these packages include an uncoated solid bleached kraft folding carton or a white top or mottled white corrugated container where the exterior linerboard is made with multi-ply paperboard having an exterior ply of bleached fibers, virgin fibers from virgin bleached pulp or deinked recycled bleached fiber.
  • a white package surface may also be created by using clay-coated bleached paper labels affixed or laminated to folding cartons and corrugated containers. These typically virgin bleached fiber labels may cover the entire surface of the package, or in the case of "spot" labels, they may only be applied on the major panels of the package.
  • bleached fibers are a detriment for several reasons.
  • a beverage carrier which is a type of carton, is designed to contain beverage bottles and cans in six-packs, twelve-packs, 24-packs, cubes, or the like.
  • the beverage carrier board must have sufficient wet strength
  • the typical beverage carrier is a two-ply product. It generally consists of a base ply of virgin kraft formed from long soft wood fibers, which provide the increased tear strength, and an outer or top ply, generally formed of shorter fibers made from softwoods and hardwoods. These two plies are simultaneously bonded together on the papermaking machine.
  • the top ply side typically receives a clay coating and graphics are then 3 subsequently printed on the clay coat.
  • the printed sheet is then die-cut into sections and each section is folded and glued into the shape of a box or container that subsequently receives the beverage cans.
  • the invention is directed to a laminated fiberboard package, particularly a folding carton or a corrugated container, having enhanced graphics and to a method of producing the same.
  • an outer sheet or top ply composed of a clay-coated, unbleached cellulosic fiber material such as unbleached kraft paper is printed with graphics, preferably by a high speed web printing method.
  • the printed web is then rewound in roll form and stored for subsequent application to a cellulosic substrate.
  • the cellulosic substrate When producing beverage carriers, the cellulosic substrate preferably consists of one or more plies of predominately unbleached virgin kraft linerboard, while when producing a product such as a cereal box, the cellulosic substrate can be formed of one or more plies of predominately recycled fibers.
  • the rolled, printed, clay-coated, unbleached kraft paper is unwound and continuously applied to a surface of the moving web of cellulosic substrate and bonded to the substrate by an adhesive, to thereby provide a laminated substrate to be used for packaging material, particularly for a folding carton.
  • the adhesive continuously bonds the entire inner surface of the printed paper to the outer surface of the cellulosic substrate.
  • An overprint varnish may be applied to the printed surface to prevent scuffing or rubbing off of the printed graphics and to increase the coefficient of friction of this surface.
  • the 4 printed paper is then laminated to the cellulosic substrate.
  • the laminated product is then die cut into a plurality of sections, units, or segments of desired shape and each section is then folded and glued to form the configuration of a box.
  • the boxes, in a flat folded state, are shipped to the manufacturer of the product, the boxes are then opened, the product inserted and the end flaps are then glued or secured to provide the final packaged product for distribution.
  • the beverage cans may be introduced into the laminated box in a refrigerated state. Subsequently moisture may condense on the refrigerated cans, which may run off the can and be deposited and absorbed by the carrier material causing warping or disfiguration of the laminated box.
  • a layer of water absorbent, cellulosic material such as kraft paper, corrugated medium, or newsprint can be applied to the inner surface of the laminated substrate prior to die cutting, and folding and gluing.
  • the water absorbent cellulosic layer is applied to the inner surface of the laminated substrate through use of a waterproof adhesive such as a hot melt adhesive. The water absorbent layer will absorb any moisture which may be present within the package to prevent warping of the laminated package.
  • the invention provides enhanced graphics for paperboard packaging by use of high speed printing on unbleached cellulosic fiber material comprised of unbleached virgin kraft pulp and/or recycled pulp, which is then bonded to the cellulosic substrate by means of an adhesive. It is preferred to construct laminated packaging having an outer layer made from clay-coated unbleached kraft paper. This paper has a basis weight of 20 to 150#/ream (ream is
  • the unbleached backside of the label is not visible since it is affixed to the unbleached portion of the package, and thus the unbleached fibers do not show.
  • Clay-coated unbleached kraft paper is less costly to produce than clay-coated bleached paper.
  • the clay-coated kraft paper is smooth, and is typically manufactured on a fourdrinier machine at relatively high speeds.
  • the fibers are refined for smoothness and the forming consistency is low to reduce flocculation.
  • the sheet of unbleached kraft Prior to coating, the sheet of unbleached kraft is calendered to further enhance smoothness.
  • the paper may be coated on the paper machine after calendering, or alternately, it may be coated in a separate, off-line operation.
  • the unbleached fibers contribute more strength per pound of weight to the strength of the packaging than bleached fibers. This means less packaging and therefore less solid waste to dispose of.
  • Paper is lighter than board. Thus, shipping the lighter weight paper to and from the printing locations improves logistics and reduces freight costs.
  • More printed images can be stored, transported, and processed if the images are imparted on a thinner substrate.
  • the invention is directed in general to a laminated printed package consisting of a cellulosic substrate or base layer of unbleached virgin kraft linerboard, preferably with wet strength characteristics, or alternately of recycled pulp fibers, being laminated through use of an adhesive, which may have waterproof properties, to a corresponding outer or top sheet of paper printed with graphics.
  • the outer layer or top paper sheet to be used in the invention may be clay coated paper which has a thickness generally in the range of 0.00125 inch to 0.01000 inch.
  • the outer or top paper sheet is a clay coated unbleached kraft paper because of all the advantages previously noted herein. 6
  • the outer or top paper in roll form is unwound and printed by conventional techniques, preferably by any variety of high speed web printing methods, operating at a speed generally in the range of 500 to 3200 ft. per minute.
  • One to multiple color printing can be utilized to print the graphics on the clay-coated or smooth surface of the paper.
  • an overprint varnish or other similar protective coating may be applied over the printed graphic image.
  • the paper may be rewound into roll form and stored for subsequent application to a cellulosic substrate at the location of the box manufacturer. Alternatively, the paper may be immediately laminated to the substrate.
  • the cellulosic substrate can be produced by conventional methods and can consist of unbleached virgin kraft pulp, recycled cellulosic pulp produced from old corrugated containers, newsprint, white office waste, and the like, or mixtures of virgin kraft pulp and recycled cellulosic pulp.
  • the substrate is produced in one or more plies on the forming section of the paper machine and generally has a basis weight of 25 lbs. to 90 lbs. per 1,000 sq. ft., and a thickness of 0.009 to 0.035 inches.
  • the substrate could be a single-, double-, or triple-walled corrugated board.
  • the substrate When producing a beverage carrier, where high tear strength is required in the laminated product, long fiber, virgin soft wood pulp is preferred as the base layer of the substrate, and an outer or top ply of finer fiber hardwood pulp can be applied to the base ply on the forming section of the paper machine.
  • the substrate When producing a laminated product that is designed to contain products of lesser weight, such as cereal boxes, milk cartons, or the like, the substrate can be formed of one or more plies of recycled pulp, produced from old corrugated cartons, newsprint, office waste, and the like.
  • cellulosic substrates can be produced by a typical kraft process, in which wood chips are cooked at a temperature of approximately 340°F with the addition of sodium hydroxide and sodium hydrosulfide (conventional kraft white liquor) for a period of about 20 to 60 minutes to dissolve the lignin. After cooking, the pulp is washed which acts to remove up to 98% of the residual cooking chemicals. The pulp is then diluted with water to a solids content of about 4% and treated with sulfuric acid and alum to obtain the desired pH.
  • a typical kraft process in which wood chips are cooked at a temperature of approximately 340°F with the addition of sodium hydroxide and sodium hydrosulfide (conventional kraft white liquor) for a period of about 20 to 60 minutes to dissolve the lignin. After cooking, the pulp is washed which acts to remove up to 98% of the residual cooking chemicals. The pulp is then diluted with water to a solids content of about 4% and treated with sulfuric acid and alum to obtain the desired
  • the pulp stock is then delivered to the headbox of the forming section of the papermaking machine in the form of a slurry, and the pulp slurry is fed from the headbox onto the forming fabric to provide a pulp mat.
  • the pulp slurry is fed from the headbox onto the forming fabric to provide a pulp mat.
  • water is removed from the pulp mat by both gravity and mechanical induced vacuum, and the partially dewatered pulp then passes through the press section and drying section of the papermaking machine, in a conventional manner, to produce the dry cellulosic substrate.
  • the substrate consists of multiple plies, the pulp for each additional ply is fed from a second headbox located downstream of the first headbox onto the base ply to provide the composite structure in a conventional manner.
  • the cellulosic substrate When producing paperboard packaging such as cereal boxes, the cellulosic substrate will generally consist of multiple plies of recycled fibers.
  • the pulping of the recycled fibers is carried out in a conventional manner, in which the recycled cellulosic waste is mixed with water and chemical dispersants, such as sodium hydroxide. The mixture is then subjected to a shear type of pulping agitation to break down the cellulosic waste into individual fibers and to liberate inks and toners.
  • dispersant chemicals act to dissociate the ink from the fibers, and disperse the ink particles in the aqueous pulp slurry.
  • the pulp can then be subjected to conventional ink removal operations which can be accomplished either by froth floatation or dilution washing.
  • the cellulosic substrate When utilizing virgin unbleached kraft pulp, the cellulosic substrate will be brown in color, while the substrate formed from recycled materials will generally be brown or grey in color, depending upon the nature of the paper being recycled.
  • the printed paper is unwound, and then continuously laminated by means of an adhesive to a corresponding moving web of the cellulosic substrate.
  • the moving web Preferably, the moving web is continuous.
  • corrugated sheets may be substituted for the moving web and the printed paper may be laminated thereon in a discontinuous lamination process.
  • An adhesive layer is applied to cover and bond the entire inner surface of the printed paper to the outer surface of the cellulosic substrate. Selection of the adhesive used should be influenced by the product contained within the box.
  • products that contain oils require the use of adhesives that prevent migration of the oils to the outer layer of the box.
  • moist products require the use of waterproof or water-resistant adhesives, such as an epoxy resin, urea formaldehyde resin or a hot melt adhesive.
  • the preferred adhesive to prevent moisture migration is a hot melt adhesive applied in liquid form (available from Ato 8 Findley, Inc.), a liquid polymer or solvent based adhesive (available from H.B. Fuller Co.) or in a dry non-tacky, solid film form (available from Dow Chemical Co.).
  • the laminating process may require that the substrates be heated to a temperature in the range of 150°F to 200°F and the adhesive is preferably applied to the undersurface of one of the substrates by a gate roll size press, or a metering blade.
  • the substrate with the adhesive on its undersurface is then applied to the upper surface of the corresponding substrate to provide a laminated product which is passed through compression rolls to firmly bond the printed paper to the substrate.
  • a hot melt adhesive film is used, the film is merely fed between the cellulosic substrate and top paper and then passed through heated compression rolls to form the laminated printed package.
  • the printed paper extends over the entire surface area of the substrate with exception of the flap area immediately below the handle portion of the carrier, which when folded, will not be visible.
  • the laminated product is then die "cut into a plurality of sections or segments of the desired shape or configuration. Each section is then folded and glued to form the carrier.
  • the flat boxes are then shipped to the manufacturer of the product to be packaged. At the site of the product manufacturer, the flat boxes are opened, the product inserted, and the end flaps are then glued to provide the final packaged product that can be sent for distribution.
  • the items, such as beverage cans, inserted into the laminated package may be cold or refrigerated, and in this case, moisture may condense on the cans. It has been found that the condensed moisture from the cans and transferred to the carrier material may tend to cause warping or disfigurement of the laminated package.
  • a layer of water absorbent cellulosic material such as kraft paper, corrugated medium or newsprint, can be applied to the inner surface of the carrier, through use of a waterproof adhesive, which can take the form of an epoxy resin, urea formaldehyde resin, hot melt or the like.
  • any moisture condensing on the refrigerated cans will be absorbed in the inner layer of cellulosic material and will not migrate through the laminated package due to the barrier created by the waterproof adhesive, thus eliminating warping or other disfigurement of the package interior and exterior.
  • a layer or film of waterproof material such as polyethylene film, can be applied to the inner face of the laminated material prior to die 9 cutting and folding. The waterproof film will prevent migration of water or moisture through the laminated package to aid in minimizing any warpage or disfigurement of the package.
  • the invention maximizes the technology of current high speed web printing processes for enhanced graphics in packaging by laminating printed rolls of unbleached, clay-coated kraft paper to a heavier weight cellulosic substrate immediately preceding the die cutting, folding and gluing process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Cartons (AREA)

Abstract

L'invention concerne un conditionnement de carton contrecollé qu'on produit en imprimant dans un premier temps des graphismes par impression de bande continue grande vitesse sur une feuille de matière de fibres cellulosiques écrue enduite de kaolin telle que du papier kraft. Le papier imprimé est ensuite appliqué de manière continue sur une surface d'un substrat cellulosique de bande continue, et contrecollé contre le substrat au moyen d'un adhésif, qui peut être imperméable à l'eau, en vue d'obtenir un produit contrecollé. Le produit contrecollé est ensuite coupé à la forme pour obtenir la forme voulue, plié et collé pour obtenir une configuration de boîte ou de contenant. Une couche de matière de fibres cellulosiques absorbant l'eau peut être collée à la surface intérieure du substrat pour éviter que l'humidité provenant du produit conditionné ne suinte à travers le substrat vers le papier imprimé.
PCT/US1999/009992 1998-05-06 1999-05-06 Conditionnement de carton contrecolle et procede de fabrication Ceased WO1999056953A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7345898A 1998-05-06 1998-05-06
US09/073,458 1998-05-06

Publications (1)

Publication Number Publication Date
WO1999056953A1 true WO1999056953A1 (fr) 1999-11-11

Family

ID=22113804

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/009992 Ceased WO1999056953A1 (fr) 1998-05-06 1999-05-06 Conditionnement de carton contrecolle et procede de fabrication

Country Status (1)

Country Link
WO (1) WO1999056953A1 (fr)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1459879A3 (fr) * 2003-03-21 2005-09-21 BHS Corrugated Maschinen-und Anlagenbau GmbH Procédé pour la fabrication des feuilles en carton ondulé
SG115423A1 (en) * 2000-10-23 2005-10-28 Westvaco Corp Printable composite paperboard for packaging
WO2012099554A1 (fr) * 2011-01-19 2012-07-26 Noya Kagit Ve Ambalaj Sanayi Ticaret Limited Sirketi Papier multicouche et procédé de stratification pour sa production
US8603609B2 (en) 2009-11-16 2013-12-10 The Glad Products Company Discontinuously laminated film
US8888365B2 (en) 2009-11-16 2014-11-18 The Glad Products Company Non-continuously laminated multi-layered bags
US8940377B2 (en) 2009-11-16 2015-01-27 The Glad Products Company Multi-layered bags with discrete non-continuous lamination
US9108390B2 (en) 2011-11-04 2015-08-18 The Glad Products Company Incrementally-stretched thermoplastic films and bags with increased haze
US9114596B2 (en) 2009-11-16 2015-08-25 The Glad Products Company Incrementally-stretched adhesively-laminated films and methods for making the same
US9186862B2 (en) 2009-11-16 2015-11-17 The Glad Products Company Multi-layered lightly-laminated films and methods of making the same
CN105064121A (zh) * 2015-07-16 2015-11-18 无锡荣成纸业有限公司 一种用全回收废纸抄造白色挂面箱纸板的生产工艺
US9381697B2 (en) 2011-04-25 2016-07-05 The Glad Products Company Thermoplastic films with visually-distinct stretched regions and methods for making the same
US9381718B2 (en) 2011-04-25 2016-07-05 The Glad Products Company Multi-layered films with visually-distinct regions and methods of making the same
US9393757B2 (en) 2010-11-16 2016-07-19 The Glad Products Company Discontinuously laminated film structures with improved visual characteristics
US9469443B2 (en) 2010-09-14 2016-10-18 The Glad Products Company Multilayer plastic film
US9566760B2 (en) 2010-11-16 2017-02-14 The Glad Products Company Ribbed film structures with voiding agent created visual characteristics
US9604429B2 (en) 2010-11-16 2017-03-28 The Glad Products Company Ribbed film structures with pigment created visual characteristics
US9731475B2 (en) 2009-11-16 2017-08-15 The Glad Products Company Films and bags with visually distinct regions and methods of making the same
US9868582B2 (en) 2012-08-24 2018-01-16 Graphic Packaging International, Inc. Material for carton, blank, or substrate
US10293981B2 (en) 2009-11-16 2019-05-21 The Glad Products Company Non-continuously laminated structures of thermoplastic films with differing material compositions and functional material properties
US10780669B2 (en) 2009-11-16 2020-09-22 The Glad Products Company Films and bags with visually distinct regions and methods of making the same
US11345118B2 (en) 2009-11-16 2022-05-31 The Glad Products Company Films and bags with visually distinct regions and methods of making the same

Citations (4)

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Publication number Priority date Publication date Assignee Title
EP0417368A1 (fr) * 1988-03-30 1991-03-20 Westvaco Corporation Procédé de fabrication de matériau d'emballage couché et imprimé sur une presse d'impression
EP0448344A2 (fr) * 1990-03-20 1991-09-25 Green Bay Packaging Inc. Produit en carton à plusieurs couches et son procédé de production
EP0500363A1 (fr) * 1991-02-21 1992-08-26 Green Bay Packaging Inc. Papier multicouche dont une couche extérieure est constituée de papier de bureau recyclé et procédé de fabrication
US5882746A (en) * 1995-12-28 1999-03-16 Hoffman Environmental Systems, Inc. Laminated package and method of producing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0417368A1 (fr) * 1988-03-30 1991-03-20 Westvaco Corporation Procédé de fabrication de matériau d'emballage couché et imprimé sur une presse d'impression
EP0448344A2 (fr) * 1990-03-20 1991-09-25 Green Bay Packaging Inc. Produit en carton à plusieurs couches et son procédé de production
EP0500363A1 (fr) * 1991-02-21 1992-08-26 Green Bay Packaging Inc. Papier multicouche dont une couche extérieure est constituée de papier de bureau recyclé et procédé de fabrication
US5882746A (en) * 1995-12-28 1999-03-16 Hoffman Environmental Systems, Inc. Laminated package and method of producing the same

Cited By (33)

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