CN102712380A - A smart laminate and a smart container thereof - Google Patents

A smart laminate and a smart container thereof Download PDF

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Publication number
CN102712380A
CN102712380A CN2011800068579A CN201180006857A CN102712380A CN 102712380 A CN102712380 A CN 102712380A CN 2011800068579 A CN2011800068579 A CN 2011800068579A CN 201180006857 A CN201180006857 A CN 201180006857A CN 102712380 A CN102712380 A CN 102712380A
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CN
China
Prior art keywords
repulpable
laminate
layer
container
biodegradable
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.)
Pending
Application number
CN2011800068579A
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Chinese (zh)
Inventor
R.瓦波拉
J.拉特拉
B.克拉诺维奇
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Huhtamaki Oyj
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Huhtamaki Oyj
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Publication date
Application filed by Huhtamaki Oyj filed Critical Huhtamaki Oyj
Publication of CN102712380A publication Critical patent/CN102712380A/en
Pending legal-status Critical Current

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0045—Bending or folding combined with joining
    • B31F1/0048—Bending plates, sheets or webs at right angles to the axis of the article being formed and joining the edges
    • B31F1/007—Bending plates, sheets or webs at right angles to the axis of the article being formed and joining the edges for making articles with multilayered walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • 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
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/02—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape
    • B65D3/06—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape essentially conical or frusto-conical
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/001—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs made from laminated webs, e.g. including laminating the webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/742—Coating; Impregnating; Waterproofing; Decoating
    • B31B50/743—Coating or impregnating edges or corners
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/26—All layers being made of paper or paperboard
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/12—Coating on the layer surface on paper layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/028—Paper layer
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/716—Degradable
    • B32B2307/7163—Biodegradable
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2439/00—Containers; Receptacles
    • 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
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • 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
    • B65D2565/385—Details of packaging materials of special type or form especially suited for or with means facilitating recycling
    • 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
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate
    • 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
    • D21H21/14—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 characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents
    • 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
    • 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
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Abstract

A completely repulpable and recyclable multilayer laminate based essentially on cellulosic material and having a special structure and special compositions of the various layers and containers, preferably for single use, formed of such multilayer laminate.

Description

Dexterous laminate and dexterous container thereof
Technical field
Complete Repulpable that the present invention relates to be described below and callable laminate and by laminate form basically based on the container (being preferably cup) of the moisture food of cellulosic material, said laminate comprises
A) randomly the ply of paper of warp coating is randomly as the skin of container, and it has 100-350 g/m 2Weight;
B) based on Repulpable at least, the adjacent tie layer of biodegradable adhesives preferably, its have at least allow a layer c) the Cobb value up to 25 g/m 2Every g/m during (120 seconds) 24 hours 2Water injectivity;
C) damp proof lining paper, it has 30-45 g/m 2Weight and be impregnated with hydrophobic, at least Repulpable, preferably biodegradable agent makes said lining paper through dipping have about 1-25 g/m 2Cobb value (120 seconds, DIN EN 20535:1994);
D) heat sealing layer preferably, its be applied at least in the zone that will link in order to form said container and based on Repulpable at least, biodegradable resin preferably.
Background technology
So-called fast food restaurant be the main of nutrition and grow up in the supplier.Mainly, the logical concept of fast food restaurant is based on the packing of single use.Single uses and means that after having enjoyed food the packing of food is dropped.
Because this packing can (mainly be the form of fiber by cellulosic material; For example paper, cardboard or other molded fiber article) or plastic material (for example poly-vinyl, polypropylene or polyethylene terephthalate) constitute; Perhaps the compound by cellulosic material and plastic material constitutes; So based on the waste management that material is reclaimed is difficult, or even impossible.
Although it is that not packing of using need be taken cleaning back that known single uses the great advantages of packing; Thereby avoided lot of energy consumption; For example be used to heat dish water and/or dry single use packing through cleaning; And having kept being used for the height and the failure-free hygienic standard of public use, is global big problem yet single uses the main flow of packing.
This problem relates to the essence that single uses the waste stream of packing.As already mentioned, this refuse is made up of the compound of plastic material and cellulosic material usually.For this refuse is reclaimed, need material different be separated, these materials could be recycled after being separated from each other.Yet the waste stream that comprises these mixtures of material makes usually can not be separated different materials and recycle economically.Usually, when making paper and cardboard, paraffin and synthetic polymer (for example plastic material) are used as moisture delayer, expelling water agent, oil displacement agent, hardness reinforcer and mold release.Therefore; The refuse of this paper and cardboard (single use keep processed by said paper and cardboard usually) not only is difficult to but also usually can not pulp and recovery again in the technology of standard paper mill, because the wax that poly-mer especially is derived from oil is at paper mill plain boiled water (the recycled process water) with discharge in the effluent not biodegradable.In addition, the residue of the wax that during pulp and removal process again, can't remove from paper pulp fiber can cause several problems, because during forming and making the process of paper or cardboard sheet, on screen cloth and felt, understands and accumulate.It is also known that in the time of in being discarded in refuse landfill or other waste treatment system, such wax has hindered the biodegradation compost treatment.Therefore; Apply or be impregnated with the paper of traditional synthetic polymer and wax and cardboard also is difficult to and usually pulp and recycling again; Because the fiber that they are difficult to from standard pulp process again separates, in the effort of pulp again, cause significant fibre loss, thereby be difficult to recycle them.And this synthetic polymer also is not biodegradable, has therefore hindered compost treatment.
Be known that; This paper and/or cardboard through dipping only can come pulp again through using the special-purpose machine of pulp again; The machine of pulp again of this special use separates paper pulp fiber from laminated film and/or macerate, with regard to running cost and/or recovery paper pulp fiber output, this is very expensive.Fiber buddle is flooded the action that complex and/or plastic material separate damaged some fibre, cause their from reclaim paper pulp, to be elected and lose unrenewable.In addition, when separated plastic material refuse was not hindered by pulp process again for the adhesiveness of fiber, separated plastic material refuse had carried some fibre and has come out from pulp process again.Equally; The synthetic material that not only is used as laminate in order to make paper and cardboard; And by coating of processing such as the synthetic material of wax and infusion product; Only can be in the equipment of pulp again of special tectonic by pulp again so that recycle, the equipment of pulp again of this special tectonic is removed and has been separated wax.Yet, these stronger physics of these pulp processes again and chemical need and be captured on the fibre loss that causes in the wax cause callable warp again the pulp fiber level be reduced to level far below standard pulp process again.In addition, the packing of being processed by this product is not biodegradable, and must be separated and leave the garbage loading embeading field of separating in.
Summary of the invention
Therefore; The purpose of this invention is to provide a kind of material of container and container that forms by this material of being used for; Be preferably used for single and use, based on the cellulosic material of moisture food, it can be by according to pulp and the recovery again of standard paper mill technology; Residue (if any) is preferably biodegradable and can be allowed direct food contact simultaneously by compost in being discarded in refuse landfill or other disposal system the time thus.
Through providing a kind of complete Repulpable and callable laminate to realize this purpose, said laminate is basically based on cellulosic material, is preferably used for forming the container that the preferably single of moisture food uses, and said laminate comprises
A) randomly the ply of paper of warp coating is randomly as the skin of container, and it has 100-350 g/m 2Weight;
B) based on Repulpable at least, the adjacent tie layer of biodegradable adhesives preferably, its have at least allow a layer c at least) the Cobb value up to 25 g/m 2Every g/m during (120 seconds, DIN EN 20535:1994) 24 hours 2Water injectivity;
C) damp proof lining paper, it has 30-45 g/m 2Weight and be impregnated with hydrophobic, at least Repulpable, preferably biodegradable agent makes said lining paper through dipping have about 1-25 g/m 2Cobb value (120 seconds, DIN EN 20535:1994);
D) heat sealing layer preferably, its be applied at least in the zone that must be bonded in order to form container after a while and based on Repulpable at least, biodegradable resin preferably.
The layer of laminate a), the skin of the container that the creative laminate of randomly serving as reasons forms is the ply of paper through applying randomly, has 100-350 g/m 2Weight, g/m preferably>=150 2Weight.This layer is preferably cardboard, the required engineering properties of the creative container that it has guaranteed to be formed by creative laminate.
Preferably, comprise the fiber that has reclaimed as outer this cardboard a).
In addition; Formation can be coated with Repulpable at least by outer field layer surface a) of the creative container that creative laminate forms; Preferably biodegradable coating; For example clay coating, polyethylene coating or starch coat, this coating preferably at least can be water-soluble or water dispersible, and be Repulpable therefore.
Usually, coating has provided the excellent surface that is used to print.
Creative laminate outer) be tied to a layer c a) by means of tie layer b), promptly damp proof lining paper, it becomes the innermost layer of the container that is formed by creative laminate.
What tie layer b) will be preferably cardboard outerly a) is tied to layer c based on lining paper).
Preferably, this tie layer b) based on Repulpable at least, preferably biodegradable and can heat activated adhesives, every g/m this adhesives had 24 hours before losing its viscosity during 2Certain water injectivity.In order to make this tie layer b) can absorb a certain amount of water, the adhesives of Repulpable is mixed at least has a suction cmpd, the amount of this suction cmpd is enough to realize at least allowing a layer c) the Cobb value up to 25 g/m 2Every g/m during (120 seconds, confirm) 24 hours according to DIN EN 20535:1994 2Water injectivity.This suction cmpd is a Repulpable at least, preferably biodegradable natural or synthetic compound.
Can use one or more to have gel and set up the cmpd of ability (gel-building capacity) and be used as having the natural of water injectivity or part native compound, said have gel and set up the cmpd of ability and be selected from and comprise following group: have microcrystalline cellulose, the sodium carboxymethyl cellulose of the sodium cellulose glycolate of 11% weight, thorn locust bean flour, citrus pectin; Starch, sodium alginate, guar bean flour, Ι-carrageenan; Karaya, gellan gum, galactomannan, tower draw stone flour; Apple pectin, pectin from lemon peel, Sodium Hyaluronate; Bassora gum, tara gum and xanthans, this cmpd is gel compound preferably.
Preferably, alginates (alginates for example natural, that part is natural and/or synthetic preferably are derived from algae, most preferably from brown alga) can mix with the adhesives of Repulpable at least and are used as the cmpd that absorbs water.
Can use the super-absorbert resin (being preferably super-absorbert cross linked polyacrylate fat, preferably sodium or ammonium neutralisation) to be used as having the synthetic compound of water injectivity, it is a Repulpable at least, and is preferably biodegradable.
Natural and synthetic compound with water injectivity is preferably provided in powder, so that more easily mix with adhesives.
Preferably, what be mixed with the suction cmpd is preferred for can heat activated adhesives having >=70 ℃ fusing point, and when said water injectivity has been exceeded, loses its viscosity.This water buffering character of tie layer allows the internal layer c of the creative container that conduct forms by creative laminate before losing its viscosity) lining paper have certain minimum water transmitance, this is necessary for Repulpable.Therefore; The moisture buffer capacity of tie layer provides the condition precedent of the complete Repulpable container that is formed by creative laminate; Yet the moisture food such as beer can be contained in this creativeness container that is formed by creative laminate, is preferably the cup that single uses.
Preferably; Be preferably can heat activated adhesive group in Repulpable at least; Preferably biodegradable resin; Be preferably and be selected from the soluble resin of hot water at least that comprises following group: poly ethylene vinyl alcohol, such as the polyacrylates of polyethyl acrylate, polyacrylic acid propyl ester, such as the polymethyl methacrylate of polyethyl methacrylate or polypropylmethacryla,es; Polyacrylic acid is such as the acrylic copolymer of ethylene/acrylic acid acid copolymer, ethylene/butylene/acrylic copolymer, butene propylene acid acid copolymer, such as the methyl acrylic acid acid copolymer of ethylene/methacrylic acid, poly-vinyl/vinyl acetate and composition thereof.
Layer b) weight is from 2 to 10 g/m preferably 2, more preferably be 4 to 8 g/m 2
As described; For complete Repulpable and callable laminate and complete Repulpable and callable container are provided respectively; Tie layer must with layer c) concur layer c) and be the container that forms by creative laminate internal layer and with moisture food direct contact.
This lining paper has the 1-25 g/m that permission is measured according to DIN EN 20535:1994 2(120 seconds), 10-15 g/m preferably 2The damp proof dipping of the Cobb value of (120 seconds).For the Repulpable of the creative container that is formed by creative laminate that guarantees to contact with moisture food and do not lose its viscosity, low water transmitance is necessary.Because a tie layer and a layer c) (that is, lining paper) cooperation, allow a layer c through having at least) the Cobb value up to 25 g/m 2Every g/m during (120 seconds) 24 hours 2Water injectivity, container can be used for moisture food and also is complete Repulpable.
In order to make a layer c) lining paper hydrophobic, use Repulpable at least, preferably biodegradable water-repelling agent, the amount of this water-repelling agent has realized required Cobb value.Preferably, this water-repelling agent is based on Repulpable at least, preferably biodegradable hydrogenating glycerol three acid esters or natural, the partly or complete compound of hydrogenating glycerol three acid esters.More preferably, hydrogenating glycerol three acid esters are selected from and comprise following group: hydrogenated vegetable oil is preferably soybean oil, arachisoil, olive oil, palm oil, coconut oil and/or cotton seed oil; And adipose, be preferably butter, lard, poultry grease and/or fish oil.Most preferably, use vegetable oil.
Hydrogenating glycerol three acid esters preferably have the carbon chain lengths of 10-20.
Be generally used for making moisture food preferred for single uses the hydrophobic wax phase such as paraffin of the internal layer of container anti-, the permission of hydrogenating glycerol three acid esters is according to the pulp again under normal pulp condition again of standard pulp technology again.Can use regular foam jar separating technology easily to remove the hydrophobic macerate of hydrogenating glycerol three acid esters, because during pulp again, the triglyceride particle forms also and is dispersed in the water, swims on the cold water then and does not attracted on the paper fiber.Therefore, hydrogenating glycerol three acid esters particles can be easily from the paper fiber separation, and the paper fiber can be by pulp again, and the triglyceride particle is biodegradable.Therefore, use hydrogenating glycerol three acid esters to flood and/or coated paper or cardboard allow pulp speed again to equal the pulp speed again of the undressed cellulosic material of undressed paper or cardboard or any kind.
Can also use synthetic resin to be used for impregnated liner paper as water-repelling agent; Such as US 5; The resin of describing in 585,456, its be at least Repulpable, the cation thermosetting resin; It forms daiamid through polyamine and polycarboxylic acid or ester are reacted, and daiamid and dialdehyde and epichlorohydrin reaction prepare.According to the disclosure of this US Pat, this hydrophobic resin allows the paper product pulp again when standing standard pulp condition again through dipping.
Most preferably, hydrogenating glycerol three acid esters are used for hydrophobic macerate.
Layer c) employed lining paper has 30-45 g/m in 2Weight.
Preferably, lining paper is based on the fine grinding wood fiber.Most preferably, lining paper all comprises the material from renewable origin.
Significantly, lining paper and other material of water-repelling agent and all of forming creative container must be allowed to direct food and contact (relevant with food to be packaged).
Lining paper must the whole inboard of covering container, preferably includes any open edge of container inside.Therefore, the lining paper that has above-mentioned Cobb value can be protected adhesive phase b) and outerly a) (preferably do not process by cardboard) and carry out any direct contact with the moisture food that is held.Therefore, tie layer b) not can by with holding food any direct contact and dissolve, especially can not separated by the water-soluble of food.
In order to protect the creative container of processing by creative laminate to avoid to operate, store and use the environmental concerns during this container; Especially avoid influence of moisture; Can let and layer a) had hydrophobic macerate (as layer c)) another layer c) protection, this another layer (i.e. layer c ') with hydrophobic macerate) can be by means of another tie layer (layer b ' that promptly also has above-mentioned water injectivity)) be tied to layer a).This another layer c ') preferably will be the skin of the creative container that forms by this creativeness laminate.
Therefore, further purpose of the present invention is basically based on the complete Repulpable and the callable laminate of cellulosic material, and it is made up of following
C ') as the damp proof lining paper of superficial layer, it has 30-45 g/m 2Weight and be impregnated with hydrophobic, at least Repulpable, preferably biodegradable agent makes said lining paper through dipping have about 1-25 g/m 2Cobb value (120 seconds);
B ') based on Repulpable at least, the adjacent tie layer of biodegradable adhesives preferably, its have at least allow a layer c ') the Cobb value up to 25 g/m 2Every g/m during (120 seconds) 24 hours 2Water injectivity;
A) ply of paper, it has 100-350 g/m 2Weight, by means of tie layer b ') with the layer c ') combination;
B) based on Repulpable at least, the adjacent tie layer of biodegradable adhesives preferably, its have at least allow a layer c) the Cobb value up to 25 g/m 2Every g/m during (120 seconds) 24 hours 2Water injectivity;
C) damp proof lining paper, it has 30-45 g/m 2Weight and be impregnated with hydrophobic, at least Repulpable, preferably biodegradable agent makes said lining paper through dipping have about 1-25 g/m 2Cobb value (120 seconds, DIN EN 20535:1994);
D) heat sealing layer preferably, its be applied at least in the zone that must be bonded in order to form container after a while and based on Repulpable at least, biodegradable resin preferably.
Layer c ') and layer b ') respectively by this specification sheets front to a layer c) and layer b) disclosed material constitutes.
(be preferably cup in order to form creative container with creative laminate; Being particularly useful for single uses), this laminate is preferably at least in order to form in the zone that container must link, perhaps as whole superficial layer c) on unbroken layer; Has preferably heat sealing layer d); It preferably can be by hot activation, preferably through hot air, to form the sealing Colaesce.This heat sealing layer d) preferably based on Repulpable at least, preferably biodegradable thermoplastic base resin, for example polythene-ethenol or (methyl) acrylic ester-acid copolymer with heat seal character.Therefore, heat sealing layer d) also be Repulpable and randomly be callable.
Preferably, heat sealing layer d) add up 8-20 g/m 2, more preferably reach 10-16 g/m 2, and preferably apply through applying, the part of binder couse casting die is to form creative container thus, and this connecting area is heated and activates, preferably by means of hot air, and pressurized and make up.
Further purpose of the present invention is (to be preferably cup based on the complete Repulpable that is used for moisture food and the callable container of cellulosic material basically; Be preferably single and use cup); It is by comprising layer a) to d) creative laminate form; Wherein, layer is the skin of creative container a).
Complete Repulpable that is used for moisture food and callable container that further embodiment of the present invention relates to basically based on cellulosic material (are preferably cup; Be preferably single and use cup), it is by comprising a layer c '), b ') and layer a) to a layer d) creative laminate form.
According to the present invention; Term " fully Repulpable and callable " means that whole content of the cellulosic material of creative container all are that the content of Repulpable and callable and non-cellulosic materials is Repulpable according to standard paper mill technology at least under the situation of standard duty condition, and does not rely on the equipment of pulp again of any special tectonic.
The non-cellulosic materials (it is a Repulpable according to aforementioned definitions at least) of creative container is water dispersible or can be water-soluble.Therefore, it is pulp again, and can be recovered at least in part in the standard paper technology, perhaps according to DIN EN 13432 by biodegradation.
The amount of the non-cellulosic materials of creative laminate and creative container is at most 15% weight of whole laminate or container; Preferably be at most 2.5% weight, high value depend on whether layer a) Free Surface is coated and this coating based on which kind of material.
Creative laminate can be produced according to known fabrication processes, preferably through lamination and/or coating and/or extrude.
Preferably, can come active coating b through hot air or applications of ultrasound) or layer b ') but thereby activated adhesive carry out layer a) to a layer c) or to a layer c ') link.
Can also the zone that will link in order to form creative container of creative laminate be sealed.
Creative container (especially creationary, as to be preferably single use cup) can be produced according to following process, and it is preferably carried out serially.
Description of drawings
When this process of description, especially with reference to accompanying drawing 1A-1G, in the accompanying drawing:
Figure 1A shows first production stage,
Figure 1B shows the 3rd production step,
Fig. 1 C shows the 4th production stage,
Fig. 1 E shows the 6th production stage,
Fig. 1 F shows creative cup,
Fig. 1 G shows the magnification ratio section-drawing according to the connecting area of the cup of being produced of Fig. 1 F.
The specific embodiment
Through with reference to these accompanying drawings, the method for optimizing that is used to produce creative container (particularly cup 20) comprises the steps:
-in first width of cloth sheet 11, stamp out sealing 12 as outer cardboard a) of creative container,
-with Repulpable at least, preferably biodegradable binder combination applies first width of cloth sheet 11 or second width of cloth sheet 13 as tie layer b) and by means of hot air hot activation tie layer b),
-second width of cloth sheet 13 of first width of cloth sheet 11 with damp proof lining paper combined as the layer c through dipping), this second width of cloth sheet 13 covers sealing 12,
-with hot sealable layer d preferably) apply as a layer c) lining paper,
-from the laminate 10 that is obtained sidewall sections 14 punching presses to be come out, the size of sidewall sections 14 defines the circular cone or the cylindrical shape of creative container (particularly cup 20), has transverse edge 15,16,
-sidewall sections 14 to be removed from laminate 10, lining paper 13 is outstanding in the zone of aforementioned sealing 12 to be surpassed cardboard 11 and forms tab 17,
-in the edge-protected portion of region generating of transverse edge 15,16, tab 17 is placed on around the end regions of cardboard 11, and
-sidewall sections 14 is configured as the sidewall (sleeve) of container (particularly cup 20), two transverse edges 15,16 are taken to together with the mode that overlaps and in connecting area, have been heated heat sealing layer d) and be pressed onto together after be bonded,
-sidewall (sleeve) is inserted in the bottom of container (particularly cup 20) from the below.
In having Fig. 1 G of bond sites of edge-protected; It is a scheme drawing and not in scale; It will be appreciated that transverse edge 15 is directed through transverse edge 16 with tab 17 and in its back, tab 17 is by to folded or curve as edge-protected portion.Formed new transverse edge (it indicates with Reference numeral 18 at this) thus.Through tab 17 (its by second width of cloth sheet 13, be the manufacture of materials of lining paper) is curved or folding coming, transverse edge is resisted penetrating of moisture by protection.This is critical, because the liquid of depositing in transverse edge 18 and the dixie cup 20 contacts.
Edge-protected is distinctive, and this is because tab 17 (it is made up of the lining paper as second width of cloth sheet) is guided in the direction change that transverse edge also demonstrates 180 degree on every side thus.
Preferably, the bottom of creative container (particularly cup 20) is also preferably through coming out to form from creative laminate punching press.
It will be apparent to those skilled in the art that this creativeness container (especially single use cup) also can produce according to other known fabrication processes.
In addition, clearly, this creativeness laminate also can be used for producing other container (especially single uses) that is different from cup, for example pallet and randomly corresponding lid, the packing that is used for milk or fruit juice, the dish that is used for frozen food or set up box.The container of all these types all is particularly suitable for single and uses.

Claims (24)

1. one kind basically based on the complete Repulpable and the callable laminate of cellulosic material, and said laminate comprises
A) randomly the ply of paper of warp coating is randomly as superficial layer, and it has 100-350 g/m 2Weight;
B) based on Repulpable at least, the adjacent tie layer of biodegradable adhesives preferably, its have at least allow a layer c) the Cobb value up to 25 g/m 2Every g/m during (120 seconds) 24 hours 2Water injectivity;
C) damp proof lining paper, it has 30-45 g/m 2Weight and be impregnated with hydrophobic, at least Repulpable, preferably biodegradable agent makes said lining paper through dipping have about 1-25 g/m 2Cobb value (120 seconds, DIN EN 20535:1994);
D) heat sealing layer, its be applied at least in the zone that must be bonded in order to form container after a while and based on Repulpable at least, biodegradable heat seal resin preferably.
2. laminate as claimed in claim 1 is characterized in that, said cellulosic material is paper or cardboard.
3. according to claim 1 or claim 2 laminate is characterized in that ply of paper is a cardboard a), randomly applies on its outer surface with clay, polyvinyl alcohol or starch coat.
4. like each described laminate among the claim 1-3, it is characterized in that, comprise recycled fiber as layer cardboard a).
5. like each described laminate among the claim 1-4, it is characterized in that layer weight>=150 g/m a) 2
6. like each described laminate among the claim 1-5; It is characterized in that; Tie layer b) based on Repulpable at least; Preferably biodegradable and preferably can heat activated adhesives, this adhesives be mixed with Repulpable at least, the preferably biodegradable natural or synthetic suction cmpd with gel formation ability.
7. laminate as claimed in claim 6; It is characterized in that the suction cmpd is a Repulpable at least, preferably biodegradable natural, part is natural and/or synthetic alginates; Preferably be derived from algae; Or Repulpable at least, preferably biodegradable super-absorbert resin is preferably super-absorbert cross linked polyacrylate fat.
8. like each described laminate among the claim 1-7, it is characterized in that, preferably can heat activated binder combination have >=70 ℃ fusing point.
9. like each described laminate among the claim 1-8, it is characterized in that tie layer b) weight add up 2-10 g/m 2
10. like each described laminate among the claim 1-9; It is characterized in that; Preferably can heat activated adhesive group in Repulpable at least; Preferably biodegradable resin is selected from and comprises following group: poly ethylene vinyl alcohol, polyacrylates, polymethyl methacrylate, poly-vinyl/vinyl acetate, polyacrylic acid, (methyl) acrylic copolymer and composition thereof.
11., it is characterized in that damp proof lining paper c like each described laminate among the claim 1-10) be impregnated with hydrophobic, Repulpable, biodegradable agent preferably at least, make its Cobb value be 10-15 g/m 2(120 seconds).
12. like each described laminate among the claim 1-11; It is characterized in that; Water-repelling agent is based on hydrogenating glycerol three acid esters or natural, the partly or complete compound of hydrogenating glycerol three acid esters; Perhaps based on Repulpable at least, biodegradable cation thermosetting resin preferably, it synthesizes through making daiamid and dialdehyde and epichlorohydrin reaction.
13. laminate as claimed in claim 12 is characterized in that, lining paper c) be impregnated with hydrogenating glycerol three acid esters, it is selected from and comprises following group: hydrogenated vegetable oil is preferably soybean oil, arachisoil, olive oil, palm oil, coconut oil and/or cotton seed oil; And adipose, be preferably butter, lard, poultry grease and/or fish oil, most preferably use vegetable oil.
14., it is characterized in that lining paper c like each described laminate among the claim 1-13) be impregnated with hydrogenating glycerol three acid esters, it has the carbon chain lengths of 10-20.
15., it is characterized in that sealing layer d like each described laminate among the claim 1-14) preferably based on thermosealed polyethylene/vinyl alcohol or (methyl) acrylic copolymer.
16. one kind basically based on the complete Repulpable and the callable laminate of cellulosic material, said laminate comprises
C ') as the damp proof lining paper of superficial layer, it has 30-45 g/m 2Weight and be impregnated with hydrophobic, at least Repulpable, preferably biodegradable agent makes said lining paper through dipping have about 1-25 g/m 2Cobb value (120 seconds, DIN EN 20535:1994);
B ') based on Repulpable at least, the adjacent tie layer of biodegradable adhesives preferably, its have at least allow a layer c) the Cobb value up to 25 g/m 2Every g/m during (120 seconds) 24 hours 2Water injectivity; And
With layer c ') be tied to like each described laminate in the claim 1 to 15.
17. laminate as claimed in claim 16 is characterized in that, layer c ') characteristic and composition and claim 11-14 in each described layer of c) the same.
18. laminate as claimed in claim 16 is characterized in that, layer b ') characteristic and composition and claim 6-10 in each described layer of b) the same.
19. one kind basically based on the complete Repulpable and the callable container that is used for moisture food that is formed by laminate of cellulosic material, said laminate is made up of following:
A) randomly the ply of paper of warp coating is as the skin of said container, and it has 100-350 g/m 2Weight;
B) based on Repulpable at least, the adjacent tie layer of biodegradable adhesives preferably, its have at least allow a layer c) the Cobb value up to 25 g/m 2Every g/m during (120 seconds) 24 hours 2Water injectivity;
C) damp proof lining paper, it has 30-45 g/m 2Weight and be impregnated with hydrophobic, at least Repulpable, preferably biodegradable agent makes said lining paper through dipping have about 1-25 g/m 2Cobb value (120 seconds, DIN EN 20535:1994);
D) heat sealing layer preferably, its be applied at least in the zone that must be bonded in order to form said container and based on Repulpable at least, biodegradable resin preferably.
20. container as claimed in claim 19 is characterized in that, it is by forming like each described laminate among the claim 1-15.
21. one kind basically based on the complete Repulpable and the callable container that is used for moisture food that is formed by laminate of cellulosic material, said laminate is made up of following:
C ') as the outer field damp proof lining paper of these containers, it has 30-45 g/m 2Weight and be impregnated with hydrophobic, at least Repulpable, preferably biodegradable agent makes said lining paper through dipping have about 1-25 g/m 2Cobb value (120 seconds);
B ') based on Repulpable at least, the adjacent tie layer of biodegradable adhesives preferably, its have at least allow a layer c ') the Cobb value up to 25 g/m 2Every g/m during (120 seconds) 24 hours 2Water injectivity;
A) ply of paper, it has 100-350 g/m 2Weight;
B) based on Repulpable at least, the adjacent tie layer of biodegradable adhesives preferably, its have at least allow a layer c) the Cobb value up to 25 g/m 2Every g/m during (120 seconds) 24 hours 2Water injectivity;
C) damp proof lining paper, it has 30-45 g/m 2Weight and be impregnated with hydrophobic, at least Repulpable, preferably biodegradable agent makes said lining paper through dipping have about 1-25 g/m 2Cobb value (120 seconds, DIN EN 20535:1994);
D) heat sealing layer preferably, its be applied at least in the zone that must be bonded in order to form said container and based on Repulpable at least, biodegradable resin preferably.
22. container as claimed in claim 21 is characterized in that, it is by forming like claim 17 or 18 described laminate.
23. like each described container among the claim 19-22, it is characterized in that,, preferably include any open edge at container inside place through the whole inboard of lining paper covering container of dipping.
24. like each described container among the claim 19-23; It is characterized in that; Container preferably single uses container, be preferably pallet and lid, be preferably used for frozen food dish, set up box, be preferably used for milk or fruit juice packing, be most preferably the cup that is preferably used for the single use.
CN2011800068579A 2010-01-23 2011-01-13 A smart laminate and a smart container thereof Pending CN102712380A (en)

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EP2526025A1 (en) 2012-11-28
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