WO2022070067A1 - Enveloppe en papier couché formant barrière à dégagement rapide pour bonbons et gommes sans cire chaude et son procédé de préparation - Google Patents

Enveloppe en papier couché formant barrière à dégagement rapide pour bonbons et gommes sans cire chaude et son procédé de préparation Download PDF

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Publication number
WO2022070067A1
WO2022070067A1 PCT/IB2021/058903 IB2021058903W WO2022070067A1 WO 2022070067 A1 WO2022070067 A1 WO 2022070067A1 IB 2021058903 W IB2021058903 W IB 2021058903W WO 2022070067 A1 WO2022070067 A1 WO 2022070067A1
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WO
WIPO (PCT)
Prior art keywords
water
oil
barrier coating
composition
vapour transmission
Prior art date
Application number
PCT/IB2021/058903
Other languages
English (en)
Inventor
Gonaseelan ANGAMUTHOO
Douglas Alistair Herbert KNOX
Original Assignee
Seal Chemistry (Pty) 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 Seal Chemistry (Pty) Ltd filed Critical Seal Chemistry (Pty) Ltd
Publication of WO2022070067A1 publication Critical patent/WO2022070067A1/fr

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Classifications

    • 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
    • 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
    • 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
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/18—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising waxes
    • 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
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/22—Polyalkenes, e.g. polystyrene
    • 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
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • 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
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
    • 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
    • D21H19/80—Paper comprising more than one coating
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/12—Defoamers
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/60—Containers, packaging elements or packages, specially adapted for particular articles or materials for sweets or like confectionery products

Definitions

  • This invention relates to a coated paper wrapper to replace hot liquid form waxed wrappers such as those used for sticky candies and gum, comprising a functional, heat sealable, waterbased high-release grease, oil, water and water vapour transmission barrier coating composition on one or both surfaces of the paper substrate, and methods for manufacturing the coating composition and the coated paper wrapper.
  • the coated paper wrapper and the process of manufacture excludes the use of a hot wax component.
  • Manufacturing of the current hot wax wrapper for chewing gum and re-solubilised or high tack sugared candies involves up to three separate processes.
  • the first process includes, flexographic or gravure print application to the surface and reverse of a paper substrate.
  • the second process involves suppling or re-moisturising of the paper substrate with chemicals to enhance the paper’s flexibility.
  • This process involves the application of polyethylene glycol and/or glycerine, although is not limited to these chemicals to achieve the desired level of paper flexibility.
  • Paper flexibility enhancement is necessary for wax wrappers to ensure that the wrapper, which becomes harder and less flexible through the application of wax, does not tear during forming and/or wrapping.
  • the third process involves the heating of solid blocks or granules of paraffin or other petroleum wax or modified wax blends (i.e. a hot wax component) at a high temperature in specialised wax bath containers.
  • the high temperature is necessary to convert the wax from a solid to a heated liquid state and needs to be maintained accurately, as fluctuations in temperature can influence the wax viscosity and therefore the application grammages to the paper which will detrimentally influence the mechanical properties of the wax paper.
  • the suppled paper is submerged into the wax bath and metered to ensure the paper is fully coated on one or both sides. Thereafter, the hot wax-impregnated paper requires cooling to re-solidify the waxed on exiting the heated wax bath/application system.
  • the noxious fumes or gases produced during heating are an environmental pollutant; hot wax is required to be applied at fairly high grammages in order to be effective, usually between 5 to 20 grams per square meter (g/m 2 ) dry on each or single surface of the paper substrate, resulting in a relatively thick wrapper; the metering of applied hot wax to the paper substrate can be susceptible to inconsistency and is influenced by the temperature of the heated wax, which detrimentally affects the mechanical and release properties of the paper wrapper, the wrapper cost, wrapper yield and, volume of non-sustainable waste.
  • a further disadvantage of the conventional hot waxed wrapper is that once the wrapped candy has been consumed, the wax wrapper is disposed of into the trash and destined for a landfill or is merely disposed of directly into the environment. Given that the conventional wax wrapper is non-disintegrating, non-bio-degradable and non-compostable waste and there are no “known” recovery or recycling methods for such hot waxed wrappers, these are not environmentally-“friendly” or “sustainable.”
  • the total wrapper should degrade, per conditions described in EN14045, to less than 10% of the original weight and residues should be approximately 2mm in diameter.
  • Bio-Degradability refers to the biological, aerobic, or anaerobic decomposition of the wrapping material into CO 2 , water, and minerals. Importantly EN 14046 describes required biodegradability of 90% within 6 months, under specified conditions.
  • - Compostabilitv refers to disintegration and biodegradability as described above and that the wrapping material should have no negative effect on the composting process as described in EN13432 and should not leave harmful residues behind.
  • Disintegration and decomposition can only occur if the waste is considered as food by microorganisms. All landfill environments are inherently occupied with specific microbes and enzymes, these organisms have adapted themselves to consume and breakdown trash. Unfortunately these micro-organisms, including aerobic and anaerobic bacteria do not recognise the chemical compounds in the standard hot waxed wrapper as organic food compounds, and therefore the standard hot waxed wrapper will not sustainably disintegrate or bio-degrade in the waste stream.
  • Photodegradation or photolysis is the process by which the chemical bonds in the wax, over centuries of continuous exposure to the sun’s ultra violet (UV) rays, are broken down by photons in the UV spectrum.
  • UV ultra violet
  • landfills are covered daily with a layer of earth to reduce odours and so from a practical perspective, it is not possible to expose hot waxed wrappers to the sun.
  • Respirometry tests are performed by placing solid wastes for testing e.g. fruit peels, paper board, various films and film/paper laminates, etc. in a vessel containing a specific microbe-rich compost and with aeration. Through microbe assimilation, generated CO 2 levels serve as an indicator of degradation.
  • a coated paper wrapper comprising or consisting of a print layer on one or both surfaces of a paper substrate and a water-based high-release grease, oil, water and water vapour transmission barrier coating over the print layer on one or both surfaces (i.e. the surface and/or the reverse), the barrier coating comprising or consisting of:
  • an acrylic co-polymerized resin such as an OH-functional acrylate binder including a carboxy-functional styrene-acrylic resin, in particular a styrene-acrylic copolymer emulsified resin or a styrene-acrylic copolymer emulsified resin in combination with a styrene-acrylic copolymer resin solution;
  • a wax emulsion including any one or more of a polyethylene, paraffin, polypropylene, or carnauba wax emulsion, preferably a polyethylene/paraffin wax emulsion blend;
  • an antifoam such as an emulsion of a polyether siloxane copolymer which contains fumed silica
  • the print layer may comprise or consist of one or more layers of print compositions and may include one or more of pearlised, white, pigmented, metallised, matt colour, or metallic surface prints or coating layers, as well as other suitable print finishes known to those skilled in the art.
  • the paper substrate may be paper, kraft paper or paperboard.
  • the paper substrate may be uncoated, calendared or claycoated paper or paperboard.
  • the water-based high-release grease, oil, water and water vapour transmission barrier coating may comprise or consist of from about 73% to about 80% by volume of acrylic co-polymerized resin; from about 15% to about 16% by volume of wax emulsion; from about 3% to about 11 % by volume of water; and from about 0.7% to about 0.9% by volume of antifoam.
  • the quantities set out above may include a variance of between about 2 to 5%, greater or lesser of each of the ingredients.
  • additional additives may be included in the water-based high-release grease, oil, water and water vapour transmission barrier coating, such as one or more of emulsion stabilisers, lubricants, thickening agents, pigments, or crosslinking agents.
  • the coated paper wrapper may comprise or consist of the following layers in order from the outermost layer on a first surface of a paper substrate, to the outermost layer on a second surface of the paper substrate:
  • a second print layer composition and/or the water-based high-release grease, oil, water and water vapour transmission barrier coating composition of the invention wherein where both are present, either the optional second print composition layer or the water-based high-release grease, oil, water and water vapour transmission barrier coating of the invention is layered first.
  • the coated paper wrapper may comprise or consist of the following grammages dry (grams per square meter (g/m 2 ) as set out below of each of the coating composition layers: I. the high-release grease, oil, water and water vapour transmission barrier coating of the invention at between about 1 to 3 g/m 2 , more preferably between about 1 to 2 g/m 2 ;
  • the print composition at between about 1 to 2 g/m 2 ;
  • the paper substrate at between about 25 to 40 g/m 2 ;
  • a second print composition at between about 1 to 1 .5 g/m 2 and/or a second layer of the high-release grease, oil, water and water vapour transmission barrier coating of the invention at between about 1 to 3 g/m 2 , more preferably between about 1 to 2 g/m 2 .
  • coating compositions preferably comprise the use of food safe compositions, including food safe print compositions comprising food safe inks or pigments.
  • a method for preparing a waterbased high-release grease, oil, water and water vapour transmission barrier coating composition comprising or consisting of the steps of:
  • the quantities set out above may include a variance of between about 2 to 5%, greater or lesser of each of the ingredients.
  • Additional water or water:95% ethyl alcohol at a ratio of 20:80 may be blended into the high- release grease, oil, water and water vapour transmission barrier coating after the last mixing step until a viscosity of about 20 to 30 seconds Zahn#2 at 25°C is achieved.
  • additional additives may be included in the water-based high-release grease, oil, water and water vapour transmission barrier coating composition, such as one or more of emulsion stabilisers, lubricants, thickening agents, pigments, or crosslinking agents.
  • a method for manufacturing a barrier coated wrapper of the invention comprising or consisting of: a) application of a print layer composition to a first surface of a paper substrate; b) application of the water-based high-release grease, oil, water and water vapour transmission barrier coating composition of the invention over the print layer; c) optionally, application of a second print layer composition and/or the water-based high-release grease, oil, water and water vapour transmission barrier coating composition of the invention to a second surface of the paper substrate, wherein where both are present, either the optional second print composition layer or the water-based high-release grease, oil, water and water vapour transmission barrier coating of the invention is layered first.
  • the paper substrate may be paper, kraft paper or paperboard.
  • the paper substrate may be uncoated, calendared or claycoated paper or paperboard.
  • the method of manufacturing may comprise or consist of the following steps:
  • composition layers to the paper substrate by any one or more coating techniques including gravure, flexographic, varnisher, roller coat, curtain, Meyer rod, dip or spray coating devices, preferably by flexographic or gravure application; and
  • the method of manufacture comprises or consists of application of each composition to the paper substrate in the following order, with drying between each application: I. application of the print composition (1 to 2 g/m 2 dry) to a first surface of the paper substrate;
  • This invention relates to a coated paper wrapper to replace hot waxed wrappers such as those used for sticky candies, comprising a water-based high-release grease, oil, water and water vapour transmission barrier coating composition on one or both surfaces, and methods for manufacturing the coating composition and the coated paper wrapper.
  • the process of manufacture and coated paper wrapper excludes the use of a hot wax component.
  • the coated paper wrappers of the invention are recyclable and re-pulpable and will disintegrate in a landfill, therefore complying with the definition of “Upcycled PackagingTM”, which means any packaging which has been re-designed in a qualified and measured way to: o reduce waste impact and or pollution; o be mechanically and chemically fit for purpose; and o be economically more viable due to reduced costs and/or more efficient production processes.
  • Upcycled PackagingTM any packaging which has been re-designed in a qualified and measured way to: o reduce waste impact and or pollution; o be mechanically and chemically fit for purpose; and o be economically more viable due to reduced costs and/or more efficient production processes.
  • the water-based high-release grease, oil, water and water vapour transmission barrier coating composition of the invention is formulated for application to paper, over print, in a single flexographic or gravure process. This eliminates two separate processes required for hot wax wrapper production, namely suppling and waxing, as well as the associated toxic chemical inventories required for these processes.
  • the conversion of paper with the water-based high-release grease, oil, water and water vapour transmission barrier coating composition of the invention enables a functional and fit for purpose wrapper at a much lower wrapper grammage.
  • the coating of the invention can be applied at between 1 g/m 2 to 3.0 g/m 2 dry, more preferably between 1 .5 g/m 2 to 2.5 g/m 2 dry, even more preferably between 1 .5 g/m 2 to 2 g/m 2 dry, over the paper substrate’s outer and inner surfaces, yet still achieves a fit for purpose coating, compared with 6 to 10 g/m 2 in the case of hot wax wrappers and 2.5 g/m 2 to 3 g/m 2 dry in the case of the non-wax paper coating described in WO2014/172717.
  • An advantage of the ability to use lower grammage includes cost saving on materials (50 to 60% compared with hot wax).
  • the water-based high-release grease, oil, water and water vapour transmission barrier coating composition of the invention provides for faster evaporation , which allows faster drying, and this in turn allows an extension of print conversion speeds by gravure printing of up to 300 m/min, compared with the formulation described in WO2014/172717 which only achieves about 100 m/min to produce a fit for purpose final product with complete drying.
  • Inadequately dried coating typically results in transfer of coating onto the press roller which affects print quality, results in lengthy press stoppages for clean-up and also can lead to block reels, which need to be disposed.
  • the increased print application speed available with the formulation of the invention while still providing complete drying therefore reduces production costs.
  • the coated paper wrapper of the invention also provides a superior mechanical wrapping line speed of more than 1000 pieces of candy per minute, compared to only 800 - 1000 pieces per minute for the coated paper wrapper of WO2014/172717 (i.e. a >20% improved wrapping output).
  • the water-based high-release grease, oil, water and water vapour transmission barrier coating composition of the invention is advantagous over the formulation described in WO2014/172717, in that a single formulation is fit for purpose for use on both the first and second surfaces of the paper substrate, i.e. the inner surface of the wrapper which contacts the candy and the outer surface of the wrapper.
  • a single formulation is fit for purpose for use on both the first and second surfaces of the paper substrate, i.e. the inner surface of the wrapper which contacts the candy and the outer surface of the wrapper.
  • KandyKote® V8 is a new water-based high-release grease, oil, water and water vapour transmission barrier formulation recommended for application to paper wrappers to facilitate release from sticky candy such as gum.
  • KandyKote® V8 is applied to one or both paper surfaces (i.e. the surface and/or reverse), optionally over a print layer, typically at between 1 .5 - 2.0 g/m 2 dry.
  • KandyKote® V8 can be applied through application processes such as gravure, flexographic, varnisher, rollercoat, semi- flexographic roll, blade coater or airknife coaters would be known to be useful to those skilled in the art.
  • direct gravure or rotogravure printing presses involves engraving or chemically etching micronized cells or wells over a chromed copperbased cylinder. These cells are specifically engraved or chemically etched to ensure specific cell dimensions and volumes. The unengraved or unetched areas of the cylinder represent the non-image areas. The cylinder rotates in a bath called an ink pan. As the cylinder turns, the engraved or etched cell volumes are filled with KandyKote® V8, the excess product is wiped off the cylinder by a flexible steel doctor blade. The remaining product in the recessed io cells forms the desired print or image by direct transfer to the paperboard substrate as the paperboard passes between the plate cylinder and the impression cylinder.
  • the coated paperboard subsequent to the transfer of the coating is drawn through gas or electric fired ovens, these ovens which are enclosed remove applied moisture and ensure the coating is dry before it reaches the next gravure station.
  • KandyKote® V8 is inline gravure applied at approximately 1 .5 to 2.0 g/m 2 dry over paper or over print. It is to be appreciated that a person skilled in the art may modify the grammage to between 1 .0 to about 3 g/m 2 dry depending on their requirements.
  • flexographic, or “Flexo” printing is a printing process which utilises a flexible relief plate, which is mounted over a roller.
  • the plate is based on a light sensitive polymer.
  • a negative image is placed over the plate, which is subsequently exposed to ultra violet light, the polymer hardens where light passes through the film, the remaining polymer which changes in consistency is washed away, this process can also be done by lazer etching.
  • a standard rubber roller can be used instead of mounting a full plate.
  • the Flexo process involves a fountain roller which is submerged in the ink pan, this roller transfers the coating from the pan onto an anilox, which is also known as a metering roller.
  • the anilox roller which has engraved recessed cells which are pre-determined to carry a specific volume of coating.
  • the doctor blade scrapes the anilox roll to ensure that the predetermined ink quantity delivered is only what is in the engraved cells, the coatings are transferred onto flexible printing plates or solid rubber roller as an alternative to a plate cylinder.
  • the impression cylinder applies pressure to the plate cylinder, where the image is transferred to the paper substrate, the paper is drawn into an enclosed oven with heated air movement and the liquid carrier component from the coating is dried.
  • KandyKote® V8 Process of manufacture
  • KandyKote® V8 is specifically formulated for application to chewing gum paper as a replacement for hot waxed wrappers. It can be applied to the paper wrapper on either or both surfaces (i.e. the surface and/or reverse) of the paper to meet the mechanical demands of wrapping line forming and chewing gum protection.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Paper (AREA)

Abstract

La présente invention porte sur un emballage en papier couché destiné à remplacer les emballages en cire sous forme de liquide chaud tels que ceux utilisés pour les gommes à mâcher et les bonbons collants, comprenant une sauce de couchage fonctionnelle faisant barrière, thermosoudable, à base d'eau, à dégagement rapide de graisse, d'huile, d'eau et de de transmission de vapeur d'eau sur l'une ou les deux surfaces du substrat en papier, et des procédés de fabrication de la sauce de couchage et de l'emballage en papier couché. En particulier, l'emballage en papier couché et son procédé de fabrication excluent l'utilisation d'un composant de cire chaude.
PCT/IB2021/058903 2020-10-01 2021-09-29 Enveloppe en papier couché formant barrière à dégagement rapide pour bonbons et gommes sans cire chaude et son procédé de préparation WO2022070067A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2020/06089A ZA202006089B (en) 2020-10-01 2020-10-01 High-release barrier coated paper wrapper for candies and gum which exclude the use of hot wax and a method for preparation thereof
ZA2020/06089 2020-10-01

Publications (1)

Publication Number Publication Date
WO2022070067A1 true WO2022070067A1 (fr) 2022-04-07

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PCT/IB2021/058903 WO2022070067A1 (fr) 2020-10-01 2021-09-29 Enveloppe en papier couché formant barrière à dégagement rapide pour bonbons et gommes sans cire chaude et son procédé de préparation

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ZA (1) ZA202006089B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115948134A (zh) * 2022-12-22 2023-04-11 佛山市金镭科技有限公司 一种可实现高速涂布的电化铝水性背胶及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5763100A (en) * 1993-05-10 1998-06-09 International Paper Company Recyclable acrylic coated paper stocks and related methods of manufacture
EP1224036A1 (fr) * 1999-08-12 2002-07-24 Joseph Frazzitta Procede de production d'un revetement a brillant eleve sur une surface imprimee
WO2014172717A2 (fr) 2013-02-28 2014-10-23 Seal Chemistry (Pty) Ltd Agent de revêtement sans cire pour papier
CN110205868A (zh) * 2019-07-22 2019-09-06 玉溪接装纸制造有限公司 一种镀铝型接装纸用防脱落、防粘连光油及其制备方法
US20200056052A1 (en) * 2016-10-31 2020-02-20 Sun Chemical Corporation Grease, oil, and water resistant coating compositions

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5763100A (en) * 1993-05-10 1998-06-09 International Paper Company Recyclable acrylic coated paper stocks and related methods of manufacture
EP1224036A1 (fr) * 1999-08-12 2002-07-24 Joseph Frazzitta Procede de production d'un revetement a brillant eleve sur une surface imprimee
WO2014172717A2 (fr) 2013-02-28 2014-10-23 Seal Chemistry (Pty) Ltd Agent de revêtement sans cire pour papier
US20200056052A1 (en) * 2016-10-31 2020-02-20 Sun Chemical Corporation Grease, oil, and water resistant coating compositions
CN110205868A (zh) * 2019-07-22 2019-09-06 玉溪接装纸制造有限公司 一种镀铝型接装纸用防脱落、防粘连光油及其制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115948134A (zh) * 2022-12-22 2023-04-11 佛山市金镭科技有限公司 一种可实现高速涂布的电化铝水性背胶及其制备方法
CN115948134B (zh) * 2022-12-22 2023-09-15 佛山市金镭科技有限公司 一种可实现高速涂布的电化铝水性背胶及其制备方法

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