[go: up one dir, main page]

WO2017050845A1 - Laminé et procédé de fabrication - Google Patents

Laminé et procédé de fabrication Download PDF

Info

Publication number
WO2017050845A1
WO2017050845A1 PCT/EP2016/072461 EP2016072461W WO2017050845A1 WO 2017050845 A1 WO2017050845 A1 WO 2017050845A1 EP 2016072461 W EP2016072461 W EP 2016072461W WO 2017050845 A1 WO2017050845 A1 WO 2017050845A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
pieces
laminate
leaves
coated
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/EP2016/072461
Other languages
German (de)
English (en)
Inventor
Bilal Bilgili
Pedram Zolgadri
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.)
Leaf Republic GmbH
Original Assignee
Leaf Republic GmbH
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 Leaf Republic GmbH filed Critical Leaf Republic GmbH
Publication of WO2017050845A1 publication Critical patent/WO2017050845A1/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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/02—Plates, dishes or the like
    • A47G19/03—Plates, dishes or the like for using only once, e.g. made of paper
    • 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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different 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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/06—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood 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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of 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
    • 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
    • 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
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • 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
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of 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
    • B32B2307/70—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
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard

Definitions

  • the present invention relates to a process for producing a laminate comprising at least one plant leaf or a piece thereof, a laminate thus produced, a laminate as such and a tableware comprising a correspondingly produced laminate or a laminate as such.
  • Plastic packaging offers protection against moisture and dirt, ensures hygiene, an attractive appearance and protects the packaged goods against misuse with comparatively little material use.
  • Plastic waste is not only an internationally known environmental problem in the oceans.
  • the prior art e.g., DE 603 13 679 T2 discloses biodegradable and, in particular, compostable containers which can hold articles in a dry, wet or wet condition.
  • DE 10 2012 111 235 A1 discloses a disposable tableware comprising a laminate, wherein the laminate comprises at least one dewaxed plant leaf or piece thereof, an adhesive and a bioplastic film.
  • a laminate also referred to as a composite or composite
  • environmentally friendly materials which, inter alia, enables a very stable structure within the laminate.
  • the invention in one aspect relates to a process for producing a laminate, comprising the steps:
  • the invention relates to a laminate producible according to a method according to the invention or preferred according to the invention.
  • the invention relates to a tableware, preferably a disposable tableware, comprising a laminate preparable according to a method according to the invention or preferred according to the invention.
  • the inventors have invented a novel multi-layered laminate which is inexpensive to produce, suitable for use in the microwave and is flexible and can also be safely used as a foodstuff packaging. Furthermore, it is characterized by it from that it can preferably be disposed of environmentally friendly, has a smooth surface and / or thermoformable. Furthermore, the laminate produced is sterile and / or waterproof and / or biodegradable. The production processes for laminates according to the invention are time and cost-optimized.
  • container as used herein is intended to mean any container or container that, for example, is used for packaging, storing, shipping, serving, portioning, or dispensing various types of products or objects (which include both solids and liquids Containers within the scope of the present invention may, but need not be, labeled as disposable items.
  • Containers may include, for example, bowls, cups, cups, plates, and trays be.
  • Disposable tableware is meant a container or a serving device (eg, plate or tray) preferably for foodstuffs, but cutlery such as a knife and fork is preferably not a “disposable tableware.”
  • Disposabletableware preferably includes containers capable of holding dry, wet and wet products Disposable tableware suitable for holding dry materials may be used to hold dried fruits or peanuts such as almonds Disposable tableware suitable for holding wet materials It can be used to hold fruits or vegetables, such as fresh mushrooms or tomatoes, and should perform this function for at least two or three weeks as the normal packaging-to-consumption time is about 14 days in a hot fast food product such as french fries or hamburgers, in which case the container only has to last for a short time, for example, about one hour after the wet food has been dispensed in.
  • a disposable tableware for moist foods may also be used in combination be used with an adsorbent pillow for the packaging of raw meat.
  • the container should withstand contact with meat for a period of seven days or longer, and desirably can withstand at least one freeze / thaw cycle. If possible, this packaging should be able to withstand microwaves.
  • a disposable tableware of the invention will preferably be able to hold a hot liquid, such as a soup bowl, a cup of coffee or other food product, for a time sufficient to consume them prior to cooling, for example within one Hour after purchase.
  • Such containers may also be used to contain a dry product that is rehydrated with hot water, such as cup soup products.
  • the blades advantageously act thermally insulating and thus also allow, for example, the handling of disposable tableware according to the invention with a hot or cold content.
  • the disposable tableware is completely biodegradable.
  • a material may be said to be "fully biodegradable” if, after 180 days, at least 90 percent of the organic carbon has been decomposed by microorganisms. "Partially biodegradable” is a material within the meaning of the present application, if 180 days more than 10 percent and less than 90 percent of this material was decomposed.
  • a laminate is understood as meaning a material or a product which comprises two or more layers, preferably two or more, which are adhesively bonded to one another, preferably adhesively bonded to one another.
  • Glutin glue is a natural adhesive that has been known in the art for a long time and that is obtained from animal waste of higher animals by decoction In preferred embodiments, sufficient “casein” is added to a “gluten glue” according to the invention to render it water resistant ,
  • a "paste” is an adhesive well known in the art, and is preferably a starch based or modified cellulose ether (most preferably methylcellulose based) basecoat.
  • 'Bioplastic' is a preferred thermoplastic polymer which is partially and preferably fully biodegradable.
  • a bonding layer preferably a bioplastic film, preferably with fractions of renewable raw materials, which preferably contains a polyhydroxycarboxylic acid such as polylactic acids (PLA), with plant leaves and / or pieces thereof proves to be advantageous since the resulting laminate has a higher strength than its constituents having. In particular, inter alia, a puncture resistance improvement is achieved. At the same time, the amount of expensive bioplastic film can be saved without reducing the material strength. Both the leaves and the bonding layer, preferably the bioplastic film, are harmless to health, so that the laminate meets the hygienic requirements for packaging e.g. Food meets.
  • PHA polyhydroxycarboxylic acid
  • the bonding of sheets with a bonding layer is not trivial, since the material properties of the plant leaf differ from the material properties of the bonding layer, preferably the polyhydroxycarboxylic acid-containing bioplastic film.
  • the thickness of the bioplastic film may be reduced by bonding to the sheets, the film must not be too thin, otherwise it may tear and burst when used in areas with stiff leaf veins.
  • the liability and quality eg reduced cracking, improved visual impression, insensitivity to moisture and heat
  • the bonding material bioplastic film, paper, cardboard and / or cardboard
  • a method for producing a laminate comprising the steps:
  • step (b) moistened plant leaves and / or pieces thereof are brought into contact with at least one compound layer, preferably superposed, which consists of a bioplastic film, a single or multi-ply paper, a - or multi-ply paper, a single or multi-ply board, a single or multi-ply board and combinations thereof is selected, wherein the bioplastic film is preferably adhesive coated and / or adhesive integrated and / or the paper, paperboard and / or paperboard are preferably adhesive coated, adhesive integrated and / or plastic coated.
  • the tie layer ie, the bioplastic film, paper, paperboard, and / or paperboard, may not be self-adherent at 20 ° C.
  • the contacting of the plant leaves and / or pieces thereof with the at least one connecting layer is preferably carried out by stacking or stacking them on one another.
  • the moistened plant leaves and / or pieces thereof contacted in step (b) and the at least one bonding layer are preferably pressed in a subsequent process step (c), whereby a laminate is produced.
  • the laminate is preferably cut to the desired size.
  • the moistened plant leaves and / or pieces thereof are preferably brought into contact with a bioplastic film without an adhesive coating and / or adhesive integration, ie an adhesive coating-free and / or adhesive-integrated bioplastic film.
  • the wetted plant leaves and / or pieces thereof are contacted with an adhesive-coated and / or adhesive-integrated bioplastic film.
  • a method is provided, wherein in step (a) the moistening, in particular the increase in the water content of the plant leaves and / or pieces thereof, by means of steam treatment or by storage at least 55%, preferably 55 to 99% relative humidity is achieved.
  • the storage takes place at at least 55%, preferably 55 to 99% relative humidity.
  • the Wasserstrahlbedampfung takes at least 2 seconds, preferably 2 to 20 seconds.
  • the storage at least 55% relative humidity takes at least 6 hours.
  • the water vapor for steam treatment is generated by a device with which, preferably under pressure (p> 1 bar) standing, water at a temperature of 10 to 70 ° C, preferably from 30 to 70 ° C, is atomized by means of a nozzle.
  • the water vapor thus produced preferably has a temperature of 10 to 70 ° C, preferably from 30 to 70 ° C.
  • water for moistening according to step (a), water, for example distilled water or tap water, is preferably used.
  • step (a) at a temperature of not more than 180 ° C is performed in order to avoid discoloration of the plant leaves and pieces thereof as possible.
  • step (a) and / or step (c) comprises a heating step of heating the plant leaves or pieces thereof to a temperature higher than 180 ° C to discolor the leaves and pieces thereof ,
  • a method wherein, after performing step (a), the sheets or pieces thereof have a total water content of at least 10% based on the total weight of the sheets and pieces thereof.
  • the plant leaves and / or pieces thereof are both moistened and heated prior to contacting with the at least one bonding layer.
  • the plant leaves and / or pieces thereof are heated to a temperature of more than 180 ° C, preferably to a temperature range of more than 180 ° C and less than 270 ° C, heated. This heating preferably takes place over a period of at least 30 seconds to a maximum of 15 minutes. The higher the temperature and the longer the exposure time of this temperature to the plant leaves and / or pieces thereof, the stronger the discoloration.
  • This special procedure can be set specifically green to dark green, light brown to dark brown shades, but without affecting the patterning and / or stability of the plant leaves and / or pieces thereof adversely.
  • the plant leaves and / or pieces thereof are preferably packaged or enclosed in water vapor-tight materials, such as a metal foil, in particular an aluminum foil.
  • a higher water content on and / or in the plant leaves and / or pieces thereof is preferably achieved.
  • Particularly preferred is a water content of more than 10% by weight, preferably 10 to 80% by weight, preferably 10 to 40% by weight, preferably 20 to 40% by weight, most preferably 30 to 40% by weight (based on the Total weight of the plant leaves and / or pieces thereof).
  • Too high a water content results in incomplete or less bonding between the at least one tie layer and the plant leaves and / or pieces thereof.
  • Too high a water content preferably also leads to the fact that the desired shape can not be permanently formed during the pressing, which takes place preferably under the influence of temperature of at least 80 ° C. The shape is not stiff enough and forms its viscoelastic behavior back to the original form.
  • Too low a water content causes the plant leaves and / or pieces thereof during the compression, which preferably takes place under the influence of temperature of at least 80 ° C, cracks.
  • the plant leaves and / or pieces thereof are cleaned, moistened and / or heated alone prior to step (b).
  • Another pretreatment step before contacting the plant leaves and / or pieces thereof with the at least one tie layer is preferably not carried out.
  • the present method is free of further pretreatment steps.
  • no pretreatment with an organic solvent, a soap solution or a caustic solution takes place in the process according to the invention or a preferred process according to the invention.
  • the present process is preferably free of the use of organic solvents, soap solutions and / or alkalis.
  • the present process consists of the steps (a) to (d).
  • the process preferably consists of process steps (a) to (c).
  • a laminate is produced by the present method, that at least one layer, preferably at least two, exactly two, preferably exactly one layer of moistened plant leaves and / or pieces thereof, as well as at least one, preferably at least two, preferably exactly two, preferably exactly one compound layer has, preferably consists thereof.
  • the laminate preferably has a layer structure, wherein a layer of plant leaves and / or parts thereof is followed by a bonding layer and the bonding layer in turn by a layer of plant leaves and / or parts thereof.
  • the laminate has two layers of plant leaves and / or parts thereof and an intermediate connecting layer, preferably it consists thereof.
  • the laminate has three layers of plant leaves and / or parts thereof and two intermediate connecting layers, preferably it consists thereof.
  • between at least one, preferably between all layers of plant leaves and / or parts thereof and connecting layers is an adhesive layer.
  • the at least one bonding layer an adhesive-free bonding layer, preferably bioplastic film.
  • the adhesive-free bonding layer preferably bioplastic film, a thickness of at least 20 ⁇ , preferably from 20 to 50 ⁇ .
  • step (b) a method is provided, wherein in step (b) at least two bioplastic films are used.
  • the adhesive-coated and / or adhesive-integrated paper, cardboard and / or cardboard is a plastic-coated paper, cardboard and / or cardboard.
  • step (c) at a temperature between 80 ° C and 200 ° C, preferably between 120 ° C and 150 ° C, is performed.
  • step (c) at a temperature between 80 ° C and 200 ° C, preferably between 120 ° C and 150 ° C, is performed.
  • step (c) at a temperature between 120 ° C and 150 ° C laminates are obtained, which are characterized in particular by the fact that an optimal, in particular a nationwide, compound, in particular adhesion, between the moistened plant leaves and / or pieces thereof and the connecting layer is present.
  • step (c) is provided, wherein step (c)
  • the bioplastic film has a thickness of 10 ⁇ to 600 ⁇ , preferably a thickness of 20 ⁇ to 50 ⁇ having.
  • a method is provided, wherein the plant leaf pieces are convincedblattfasem.
  • a method is provided, wherein the plant leaf and / or piece thereof has a surface area of at least 1 cm 2 .
  • the bioplastic film comprises or consists of a material selected from the group consisting of a polyhydroxycarboxylic acid, polyhydroxyalkanoates, thermoplastic starch, polybutylene succinate, plastics from algae, plastics from fungi, natural fibers, preferably wood fiber, reinforced plastics or Composites, recycled plastics, polyethylene, polypropylene, polyalcohol, poly-polyethylene terephthalate, polyisoprenes, cellulose acetate, polyvinyl alcohol, polycaprolactone, polybutylene adipate terephthalate, polyester amides, a copolymer of a polyhydroxycarboxylic acid, a cellulose hydrate, blends of polyester and polylactide, polybutylene adipate terephthalate, polyvinyl alcohol and Mixtures thereof.
  • the bioplastic film to a cellulose hydrate, preferably it consists thereof.
  • the polyhydroxycarboxylic acid is selected from the group of polymers consisting of PLA (polylactides), polymer of glycolic acid, polymer of 3-hydroxybutyric acid, polyhydoxyacetic acid, polyhydroxy fatty acids, polymer of 4-hydroxybutyric acid, polymer of 4-hydroxyvaleric acid, polymer from 5-hydroxyvaleric acid, polymer of 6-hydroxycaproic acid, poly (3-hydroxybutyrate), poly (3-hydroxyvalerate) and copolymers of said polyhydroxycarboxylic acids.
  • PLA polylactides
  • polymer of glycolic acid polymer of 3-hydroxybutyric acid
  • polyhydoxyacetic acid polyhydroxy fatty acids
  • polymer of 4-hydroxybutyric acid polymer of 4-hydroxyvaleric acid
  • polymer from 5-hydroxyvaleric acid polymer of 6-hydroxycaproic acid
  • poly (3-hydroxybutyrate) poly (3-hydroxyvalerate
  • the bioplastic film to a mixture of polylactide and Ecoflex, wherein Ecoflex is a copolyester of the monomers of 1,4-butanediol, adipic acid and terephthalic acid.
  • Ecoflex is a copolyester of the monomers of 1,4-butanediol, adipic acid and terephthalic acid.
  • it consists of it.
  • the adhesive is selected from the group consisting of a, preferably aqueous, dispersion (a heterogeneous mixture of at least two substances, one of the substances is water in most cases) of a polyester polyurethane elastomer (for example Epotal PI 00 ECO), synthetic resin dispersion glue, gelatine, casein glue, starch, gluten glue, shellac, dispersion glue, paste and glyoxal.
  • a polyester polyurethane elastomer for example Epotal PI 00 ECO
  • the single- or multi-ply paper, the single or multi-ply cardboard and / or the single- or multi-ply cardboard comprise or consist of at least one material consisting of wood pulp, semichemical, pulp, waste paper from wood or Plant leaves with optional fraction of plastic fibers or mixtures thereof has been prepared.
  • a method is provided, wherein the laminate is sterile and / or waterproof and / or biodegradable and / or thermoformable and / or deformable.
  • a method is provided, wherein a sterile and / or waterproof and / or biodegradable and / or thermoformable laminate is produced.
  • the laminate is biodegradable and deformable.
  • the bioplastic film can be completely or partially through the paper, cardboard or cardboard be replaced.
  • step (a) By moistening according to step (a) in particular an improved deformability of, preferably interconnected, plant leaves and / or pieces thereof is achieved.
  • the heating step is preferably carried out first, in particular by contacting the plant leaves and / or pieces thereof with heating plates, before the moistening step according to step (a).
  • a method is provided, wherein one, several or all inventively or inventively preferred in connection with the method for producing the laminate, also referred to as manufacturing process, disclosed features are realized.
  • the inventive and / or inventively preferred features disclosed in connection with the production method are preferably also preferred features of the laminate and / or tableware.
  • the inventive and / or inventively preferred features disclosed in connection with the laminate and / or tableware are preferably also preferred features of the production method.
  • the present invention also relates to a laminate preparable according to a method according to the invention or preferred according to the invention.
  • the present invention also relates to a laminate
  • aa at least one optionally adhesive-coated bioplastic film, at least one single-layer or multi-layer optionally adhesive-coated, adhesive-integrated or plastic-coated paper, board or cardboard or combinations thereof
  • the present invention also relates to a laminate comprising
  • aa at least one optionally adhesive-coated bioplastic film, at least one single- or multi-ply optionally adhesive-coated and / or adhesive-integrated paper, board or cardboard or combinations thereof;
  • the laminate in bb) has plant leaves or pieces thereof having a water content of at least 10% by weight, preferably from 20 to 40% by weight, and most preferably from 20 to 25% by weight (based on the total weight of the plant leaves and / or pieces thereof).
  • the present invention also relates to a tableware, preferably a disposable tableware comprising a laminate preparable according to a method according to the invention or preferred according to the invention or a laminate according to the invention or preferred according to the invention.
  • the disposable tableware comprises several layers of sheets lying one above the other, these can optionally be joined together, preferably sewn or glued together. However, this is not absolutely necessary since, surprisingly, the leaves alone can take on a certain shape already after compression and maintain this over a long period of time. Thus, in preferred embodiments, it suffices if each sheet is in contact with the at least one bonding layer at least at one point.
  • any plant leaf can be used in the laminate or tableware according to the invention, preferably disposable tableware.
  • certain plant leaves form a particularly stable laminate with the at least one bonding layer and at the same time are also suitable to permanently adopt a new shape after the pressing process. This makes it possible to save valuable bioplastic film so that a thinner film can be used.
  • These leaves are still not too thick and not too hydrated, which facilitates processing and drying. Nevertheless, the leaves are resilient, resistant and have a certain wall and cell structure, which makes it possible to give the leaves their own shape by pressing. When these sheets are pressed into a mold via an adhesive with the at least one bonding layer as a laminate, this mold is maintained both by the sheets and by the preferably thermoplastically deformed at least one bonding layer.
  • the plant leaf or piece thereof is a leaf or leaf of a plant of the genus Shorea (eg Shorea robusta (Sal)) or Bauhinia (eg Bauhinia vahlii (Siali)
  • any other plant leaves and / or pieces thereof may be used: Preferred palm leaves, bamboo leaves, algae leaves, hemp leaves, flax leaves, cotton leaves (linum xylinum), grass leaves (eg herba or gramen), saccharum officinarum (sugar cane) and / or reed leaves.
  • a somewhat thicker compound layer is preferably used, for example one which has a thickness of 210 ⁇ m to 600 ⁇ m.
  • the laminate comprises or consists of the following layers:
  • the layer (bb) lies between the layer (aa) and the layer (cc), the layer (cc) between the layer (bb) and the layer (dd) and the layer (dd) between the layer (cc) and the layer (ee).
  • a particularly stable laminate is obtained when the connecting layer and leaves support each other structurally and shape-retaining.
  • the plant leaf and / or pieces thereof have a surface area of at least 10 cm 2 .
  • each of the plant leaves contained in the laminate and / or tableware of the invention has a surface area of at least 150 cm 2 and pieces thereof have a surface area of at least 10 cm 2 .
  • the laminate according to the invention comprises a plurality of plant leaves or pieces thereof, the plant leaves and / or pieces thereof partially overlapping.
  • the overlap is imbricated.
  • at least 40%, 50%, 60%, 70%, 80% or at least 90% (most preferably at least 80%) of the surface of each of the plant leaves and / or pieces thereof, preferably via the adhesive, is included connected to the bioplastic film.
  • the bonding layer preferably the bioplastic film
  • the bonding layer is at least partially biodegradable, preferably completely biodegradable.
  • the bonding layer preferably the bioplastic film
  • the bioplastic film comprises between 10% by weight to 90% by weight of such a plastic and preferably from 50% to 60% of such a plastic.
  • Preferred plastics are selected from the group consisting of recycled plastic, polyester, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyurethane, polyethylene terephthalate and polymethyl methacrylate. By adding one of these polymers, the flexibility, durability and glass transition temperature of the bioplastic film can be increased or adjusted.
  • the bonding layer, preferably bioplastic film is fully biodegradable.
  • a further preferred embodiment relates to a tableware, preferably disposable tableware, according to the invention, wherein the polyhydroxycarboxylic acid is selected from the group of polymers consisting of PLA (polylactides), polymer of glycolic acid, polymer of 3-hydroxybutyric acid, polymer of 4-hydroxybutyric acid, polymer 4-hydroxyvaleric acid, polymer of 5-hydroxyvaleric acid, polymer of 6-hydroxycaproic acid, poly (3-hydroxybutyrate), poly (3-hydroxyvalerate) and copolymers of said polyhydroxycarboxylic acids.
  • PLA polylactides
  • polymer of glycolic acid polymer of 3-hydroxybutyric acid
  • polymer of 4-hydroxybutyric acid polymer 4-hydroxyvaleric acid
  • polymer of 5-hydroxyvaleric acid polymer of 6-hydroxycaproic acid
  • poly (3-hydroxybutyrate) poly (3-hydroxyvalerate
  • the use of PLA and / or a thermoplastic starch TPS in the bioplastic film is preferred.
  • the bioplastic film comprises or consists of PLA and / or a thermoplastic starch TPS.
  • the benefits of a PLA film start with the manufacturing process, which uses between 30 to 50 percent less fossil fuel than the production of conventional materials. In addition, less carbon dioxide escapes into the atmosphere, where it is used up to grow new corn starch. The use of this raw material is thus largely C0 2 neutral.
  • a PLA film is completely biodegradable, mainly converted into carbon dioxide and water using microorganisms. Preference is given to polylactic acids which are composed exclusively of lactic acid units.
  • PLA homopolymers which contain from 80 to 100% by weight of lactic acid units, corresponding to from 0 to 20% by weight of D-lactic acid units, are preferred.
  • D-lactic acid units can be contained as comonomer.
  • the polylactic acid may have additional polyhydroxy acid units other than lactic acid as comonomer, for example glycolic acid units, 3-hydroxypropanoic acid units, 2,2-dimethyl-3-hydroxypropanoic acid units or higher homologues of hydroxycarboxylic acids having up to 5 carbon atoms.
  • lactic acid polymers having a melting point of 110 to 170 ° C, preferably from 125 to 165 ° C, and a melt flow index (measurement DIN 53735 at 2, 16 N load and 190 ° C) of 1 to 50g / 10 min, preferably from 1 to 30 g / 10 min, in particular 1-6 g / 10 min.
  • the number average molecular weight of the PLA is in a range of at least 10,000 to 500,000 g / mol, preferably 50,000 to 300,000 g / mol.
  • the polyhydroxycarboxylic acid has a weight-average molecular weight of 140,000 to 160,000.
  • the glass transition temperature T of the bioplastic film is preferably in a range of 30 to 120 ° C, preferably 50 to 85 ° C.
  • the measurement of the glass transition temperature is preferably determined using the Dynamic Mechanical Analysis (DMA) or Differential Scanning Calorimetry (DSC) known in the art.
  • the bioplastic film may contain conventional additives such as neutralizing agents, stabilizers, antistatic agents, and / or lubricants in respective effective amounts.
  • the laminate according to the invention may also comprise more than one bonding layer, preferably bioplastic film, and / or more than one plant layer.
  • the at least one bioplastic film is sandwiched between two layers of plant leaves and / or pieces thereof (see, for example, Figure 1A + 1B + IC + 1D). It is also preferred multilayer bioplastic films in the Laminate of the invention can be used.
  • a dish preferably disposable tableware according to the invention, wherein the laminate comprises a plurality of dewaxed plant leaves or pieces thereof, wherein the dewaxed plant leaves or pieces thereof partially overlap and / or wherein the bioplastic film is arranged between two superposed leaves.
  • the connecting layer preferably bioplastic film
  • the bonding layer preferably bioplastic film, can slow down bleaching of the sheets and preserve the attractive appearance of the laminate.
  • a laminate according to the invention preferably dishes, preferably disposable tableware, is preferred, wherein the adhesive is not a solvent selected from the group acetic acid n-propyl ester, ethyl acetate, n-butyl acetate, butanone , Toluene, xylene, N-methyl-2-pyrrolidone.
  • a particularly effective and thereby preferred adhesive which may be contained in a laminate according to the invention, preferably tableware, preferably disposable tableware, is selected from the group consisting of Epotal P100 ECO, synthetic resin dispersion adhesive, gelatin, casein glue, starch, glutin glue, paste and glyoxal.
  • a dispersion of polyvinyl acetate in water is preferably used as the synthetic resin dispersion adhesive.
  • the aforementioned adhesives are particularly suitable for bonding the different materials, namely sheet and bioplastic film together.
  • the dishes preferably disposable tableware
  • exposed to direct sunlight for a long time the natural color of the leaves may be partially over time because bioplastic film containing only a polyhydroxycarboxylic acid can be relatively permeable to UV light. Bleaching can make disposable tableware less attractive to the buyer and thus reduce the sales of a product packaged or offered therewith.
  • a bleaching can be significantly reduced if the adhesive is added as an additive polyunsaturated alkenes, aromatics or heteroaromatics, which is particularly preferred.
  • the adhesive comprises at least 10% by weight, based on the total weight of the adhesive, of an organic compound selected from the group consisting of purine, pyrimidine, tyrosine, histidine, tryptophan and phenylalanine. These additives also reduce bleaching. Such additives may also be preferably omitted if the adhesive is selected from the group consisting of gelatin, casein glue and glutin glue, since these protein-based adhesives already comprise aromatic amino acids.
  • the adhesive comprises as additive a food colorant (e.g., chlorophyll (E140), copper-containing complexes of chlorophylls and chlorophyllins (E141) and / or green S (E142)).
  • a food colorant e.g., chlorophyll (E140), copper-containing complexes of chlorophylls and chlorophy
  • a crockery according to the invention preferably disposable crockery, preferably comprises or consists of a laminate which is sterile, water-resistant, biodegradable and / or deep-drawable.
  • the glass transition temperature and the melting temperature of the bioplastic film can be increased by a higher molecular weight of the polyhydroxycarboxylic acid and thus be adapted specifically to the desired product properties.
  • An increase in the melting temperature is desirable, for example, in the event that the disposable tableware is to be suitable for microwave use.
  • the following embodiments of the laminate are particularly preferred:
  • the one-sided application of the adhesive to the tie layer, preferably the bioplastic film can be carried out by any method well known in the art.
  • the application is carried out in a preferred embodiment in a rackel, brush, roller and / or spray method. If the entire surface of the bioplastic film coated with adhesive, this is particularly advantageous for large-scale manufacturing processes, since the adhesive-coated film in the subsequent step (iii) with loose leaves and leaf pieces can be brought into contact or more, preferably the individual leaves and leaf pieces Cover entire surface of the film.
  • This can be done, for example, by uncoiling bioplastic film from a roll in a continuous process, coating the adhesive, and then contacting the sheets until substantially all of the film surface is in contact with sheets through the adhesive.
  • the pretreated plant leaves and / or pieces thereof are preferably applied over the entire surface of the bonding layer, preferably the bioplastic film.
  • a further preferred embodiment relates to the process for producing a laminate according to the invention, wherein the compression according to step c) comprises a plastic deformation of the laminate at elevated temperature and under the action of pneumatic forces or by mechanical action of molds or by a combination of pneumatic and mechanical Forces.
  • the plastic forming by means of pneumatic forces can be done by negative pressure (deep drawing) or overpressure, ie compressed air, or by using both pressure variants.
  • Such methods are known in the art and are termed "thermoforming" in the English language. The methods and their details are described, for example, in Rosato's Plastics Encyclopedia and Dictionary, to which reference is hereby expressly made.
  • the mold may either be lined with a porous material that is permeable to water vapor or also have a plurality of individual vent holes through which water vapor can escape.
  • the temperature of the mold may also affect the surface texture of the laminate. If a mold is hotter than the molded counterpart, experience has shown that the steam tends to migrate to the colder form. As a result, the surface of the laminate will have a smoother and more uniform surface to the hotter than the surface to the colder surface. It is thus preferable that in the process step (iv) the pressing is a molding process in which the mold facing the bioplastic film has a higher temperature than that which is in contact with the sheets.
  • the bioplastic film has a glass transition temperature or a melting point of between 85 and 150 ° C. At this temperature, the leaves are at the same time best formable and pressable.
  • the bioplastic film comprises or consists of PLA
  • the glass transition temperature and the melting point can be adjusted accordingly by selecting the weight-average molecular weight of the PLA accordingly. A higher molecular weight increases the glass transition and the melting temperature, the tensile strength and the modulus of elasticity and reduces the elongation at break.
  • An increase in the melting temperature can also be achieved by adding PDLA (poly-D-lactide) or other polymers into the bioplastic film.
  • the pressing takes place according to step c) with a press in which either the forming die and / or its counterpart is heated, wherein the temperature of the heating is preferably adjusted so that at least the glass transition temperature of the bioplastic film is achieved during the pressing process.
  • step (c) lasts between 10 seconds to 1 hour, with the pressing preferably taking place in a press in which either the shaping punch and / or its counterpart are heated.
  • the pressing of the plant leaves is preferably carried out under the action of heat and in particular at 80-110 ° C.
  • a press may be used which comprises a heating device which is suitable for the surface and / or the Under surface of the laminate during the pressing process to heat.
  • a plasma treatment is also suitable to allow the surface of the leaves an improved bonding.
  • thermoforming of the bioplastic film takes place by means of a deep-drawing process.
  • An alternative preferred embodiment of the pressing according to step (c) is the so-called skinning, wherein the plant leaves and / or pieces thereof, preferably interconnected, also referred to as Haubhaler product, are inserted into a device provided therefor.
  • the bonding layer used preferably a bioplastic film, has a sealing layer / adhesive layer, preferably 2-60 micrometer thick.
  • This adhesive layer may preferably be applied by means of a spray application, brush application, doctor blade application or by dipping the compound layer in adhesive.
  • the bonding layer is heated and then passed under vacuum on the Haubschermaschinenis which was inserted into the device. The vacuum ensures that the heated compound layer pulls like a second skin over the Haubraumermaschinenisse and remains connected to it.
  • An alternative preferred embodiment of the pressing according to step c) is the so-called.
  • Lamination wherein the bonding layer, preferably the bioplastic film, before the pressing is bonded to the plant leaves and / or pieces thereof and thus connected.
  • the laminate is pressed and shaped in one process step.
  • the tie layer and the leaf deform and the laminate is obtained.
  • the laminate may also preferably added food grade fragrances, essences and oils.
  • logos and / or logos can be engraved on the laminate, in particular on the plant leaves and / or pieces thereof.
  • the uppermost layer of the plant leaves and / or pieces thereof can be burned and engraved finely in the micrometer range with the laser cutter.
  • the plant leaves and / or pieces thereof may also be printed, preferably by means of a tampon and screen printing process: Due to the unevenness and non-homogeneous structure of the leaves, the printing with the pad printing process for finished products is the most effective.
  • the screen printing process is additionally possible with environmentally friendly colors. Plant leaves and / or pieces thereof are inserted and over painted the screening process.
  • the raw material is refined before it is finished. Additionally or alternatively, the plant leaves and / or pieces thereof can be embossed with embossing foils (gold / silver / bronze all metallic special colors), in particular logos and lettering can be embossed here.
  • embossing foils gold / silver / bronze all metallic special colors
  • logos and lettering can be embossed here.
  • the metallic foil burns on the plant leaves and / or pieces thereof and sticks.
  • the plant leaves 1 are optionally connected via an adhesive 2 with a compound layer 3, preferably a bioplastic film and following plant leaves 1. If multiple layers of sheets 1 and / or pieces thereof are used, they may be interconnected by mechanical or chemical means. For example, the sheets 1 or pieces thereof may be glued or sewn together.
  • FIG. 1 Shown is an embodiment in which the plant leaf 1 and / or pieces thereof optionally over an adhesive 2 with the compound layer 3, preferably a bioplastic film, optionally following an adhesive 2, following plant leaves 1, following optionally an adhesive 2, following preferably a bioplastic film 3, following optionally an adhesive 2 and following plant leaves 1 are connected.
  • the compound layer 3 preferably a bioplastic film, optionally following an adhesive 2, following plant leaves 1, following optionally an adhesive 2, following preferably a bioplastic film 3, following optionally an adhesive 2 and following plant leaves 1 are connected.
  • the plant leaves used in the following examples are stapled by cotton threads, palm sticks, bamboo sticks or other suitable means to round semi-finished products having a radius of about 30 cm to 50 cm and an average weight per half-product of 10g (at 40 cm radius).
  • the stapled plant leaves used in the following examples are moistened with a spray aggregate and / or wet wipes between the individual layers.
  • an A / C cabinet can be used with the plant leaves stored at a relative humidity of up to 99% for up to 3 hours.
  • the dry leaves are moistened until, in the case of a mechanical deformation, no crackling noises are heard on the leaves ("crackle test") .
  • the pretreatment process generally lasts 150 minutes at a temperature of between 35-37 ° C.
  • the plant leaves so moistened have a water content in a range of 30 to 40% by weight (based on the total weight of the plant leaves and / or pieces thereof)
  • the water content is preferably determined by first weighing the plant leaves and / or pieces thereof, then at 105 The difference in the weight of the plant leaves and / or pieces thereof before and after drying, divided by the weight of the plant leaves and / or pieces thereof before drying, gives the result water content.
  • the plant leaves or pieces thereof may optionally be joined together, preferably sewn or glued. But they can also be placed loosely on top of each other.
  • the plant leaves and / or pieces thereof used in the following examples are additionally heated before the moistening step, if desired, at a temperature of from 180 ° C to 270 ° C for a period of at least 30 seconds to a maximum of 15 minutes, until the desired level of discoloration is set.
  • a light brown hue may be produced when exposed to a temperature of 180 ° C over a period of time 5 min and a dark brown color on exposure to a temperature of 260 ° C over a period of also 5 min to be obtained.
  • bioplastic films were used.
  • any other bioplastic films can be used for the production of the laminate.
  • the following preferred films were tested:
  • a polylactic acid-containing film such as the BASF Ecovio film
  • Used thicknesses of the films are between 10 and 40 ⁇ .
  • Per form (depending on the size of the form) foils of approx. 250 x 250mm with the material weight of approx. 4 to 8g are used.
  • the pretreated plant leaves and / or pieces thereof are pressed with preheated tools at temperatures between 120 and 150 ° C and brought into shape.
  • the machines are operated by pressing a button.
  • the tools positive and negative mold
  • the tools come together and produce the final shape of the finished product.
  • the pressing time (cycle time / incubation time) is between 6 and 10 seconds, and depends on the mold temperature and moisture content of the raw materials. example 1
  • Laminate construction is as follows:
  • Plant leaf 1 (Siali and Sal)
  • Bioplastic film (Mater-Bi or Ecovio)
  • Plant leaf 1 (Siali and Sal)
  • Example 1 is based on a method in which a bioplastic film (see above, materials used) described above is inserted between two previously pretreated plant leaves. The composite of these three materials is inserted into the machine. The press tools are heated to the required temperatures of 132 ° C. The machine presses together the heated tools and the inserted composite of leaves and bioplastic film. In this process, at the same time, punching is performed on the remainder that is no longer needed.
  • a bioplastic film see above, materials used
  • the finished product is removed and stacked.
  • Laminate construction is as follows:
  • Plant Leaf 1 (Siali and Sal) Bioplastic Film (Mater-Bi or Ecovio)
  • Plant leaf 2 (siali and sal)
  • Plant leaf 1 (Siali and Sal)
  • Example 2 is based on a similar method as in Example 1. The difference lies in the composition of the laminate.
  • the laminate also referred to as a composite
  • the laminate consists of the order of a plant leaf described above, a bioplastic film described above, and subsequently two plant leaf layers described above.
  • the composite of these four materials is placed as in Example 1 in a pressing device.
  • the pressing tools are heated to the required temperatures of 132 ° C.
  • the subsequent procedure is analogous to that of Example 1.
  • the pressing device presses the heated tools and the inserted composite of leaves and bioplastic film together. In this process, at the same time, punching is performed on the remainder that is no longer needed.
  • the machine releases and opens. When the tools are open, the finished product is removed and stacked.
  • Laminate construction is as follows:
  • Plant leaf (Siali and Sal)
  • Bioplastic film (Mater-Bi or Ecovio)
  • Plant Leaf 2 (Siali and Sal)
  • Bioplastic film (Mater-Bi or Ecovio)
  • Plant leaf (Siali and Sal)
  • Example 3 sees it before the composite additionally reinforce with a bioplastic film described above.
  • the composite here consists of the materials described above: plant leaf, bioplastic film, plant leaf, bioplastic film and plant leaf.
  • bioplastic films are alternately connected twice with three plant leaves.
  • the edges are reinforced by this bond again and the tightness increases.
  • the reinforced edges are used to attach the lid.
  • the composite of these five materials is inserted as in Example 1 in the pressing device.
  • the pressing tools are heated to the required temperature of 132 ° C.
  • the subsequent procedure is analogous to that of Example 1.
  • the pressing device presses the heated tools and the inserted composite of leaves and bioplastic film together. In this process, at the same time, punching is performed on the remainder that is no longer needed.
  • the machine releases and opens. When the tools are open, the finished product is removed and stacked.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Food Science & Technology (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un procédé de fabrication par compression d'au moins un film bioartificiel éventuellement doté d'une enduction de colle et/ou à colle intégrée, ledit au moins un papier/carton/carton blanchi monocouche ou multicouche éventuellement doté d'une enduction de colle et/ou à colle intégrée, ou une combinaison de ces derniers comportant des feuilles végétales humidifiées et/ou des morceaux de ces dernières ; un laminé ainsi fabriqué, un laminé en tant que tel et un élément de vaisselle comportant un laminé ainsi fabriqué.
PCT/EP2016/072461 2015-09-23 2016-09-21 Laminé et procédé de fabrication Ceased WO2017050845A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015116119.2 2015-09-23
DE102015116119.2A DE102015116119A1 (de) 2015-09-23 2015-09-23 Laminate und Verfahren zur deren Herstellung

Publications (1)

Publication Number Publication Date
WO2017050845A1 true WO2017050845A1 (fr) 2017-03-30

Family

ID=57113271

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/072461 Ceased WO2017050845A1 (fr) 2015-09-23 2016-09-21 Laminé et procédé de fabrication

Country Status (2)

Country Link
DE (1) DE102015116119A1 (fr)
WO (1) WO2017050845A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1010055B (el) * 2020-05-20 2021-08-13 Προκος Ανωνυμη Εταιρεια Παραγωγης Και Εμποριας Προιοντων Χαρτου Και Ειδων Οικιακης Χρησεως Μεθοδος κατασκευης χαρτινων εκτυπωμενων πιατων με χρηση βερνικιου χωρις τη χρηση πλαστικου φιλμ στην τελικη επιφανεια τους

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700059261A1 (it) * 2017-05-31 2018-12-01 Gianluca Clarichetti Piatto compostabile e procedimento per la produzione di un piatto compostabile.
DE102018009723B3 (de) 2018-12-11 2020-01-23 Tilda Cseri Verfahren zur Herstellung eines kompostierbaren Behälters aus pflanzlichen landwirtschaftlichen Abfällen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60313679T2 (de) 2002-01-11 2008-01-17 New Ice Ltd., Douglas Bioabbaubare und kompostierbare Behälter
US20130081972A1 (en) * 2011-09-29 2013-04-04 Vadim Chindyasov Biodegradable disposable tableware and methods for making same
DE102012111235B3 (de) 2012-11-21 2014-02-27 Pedram Zolgadri Einweggeschirr umfassend ein Laminat

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002045286A (ja) * 2000-08-04 2002-02-12 Hiroka Sangyo Kk 食品ケース
FR2964064B1 (fr) * 2010-08-26 2016-10-21 Clio Andrea Zandvliet Materiau biocomposite et son procede de fabrication
FR2981005B1 (fr) * 2011-10-11 2013-11-08 Yves Boulard Stratifie de feuillage vegetal alimentaire biodegradable notamment pour la fabrication de recipients

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60313679T2 (de) 2002-01-11 2008-01-17 New Ice Ltd., Douglas Bioabbaubare und kompostierbare Behälter
US20130081972A1 (en) * 2011-09-29 2013-04-04 Vadim Chindyasov Biodegradable disposable tableware and methods for making same
DE102012111235B3 (de) 2012-11-21 2014-02-27 Pedram Zolgadri Einweggeschirr umfassend ein Laminat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1010055B (el) * 2020-05-20 2021-08-13 Προκος Ανωνυμη Εταιρεια Παραγωγης Και Εμποριας Προιοντων Χαρτου Και Ειδων Οικιακης Χρησεως Μεθοδος κατασκευης χαρτινων εκτυπωμενων πιατων με χρηση βερνικιου χωρις τη χρηση πλαστικου φιλμ στην τελικη επιφανεια τους

Also Published As

Publication number Publication date
DE102015116119A1 (de) 2017-03-23

Similar Documents

Publication Publication Date Title
EP2651642B1 (fr) Multicouche à base de cellulose et de ses dérivés
EP3752673A1 (fr) Papier barrière thermosoudable
DE102012111235B3 (de) Einweggeschirr umfassend ein Laminat
EP2218653A1 (fr) Emballage biodégradable et son procédé de fabrication
EP2829396B1 (fr) Récipient destiné à l'emballage de produits alimentaires
EP3856515B1 (fr) Agencement de couches pour l'emballage
EP3795746A1 (fr) Papier barrière imprimable et scellable à chaud
KR20000057885A (ko) 생분해성재료 조성물, 이 조성물로부터 제조된생분해성재료제용기 및 이 생분해성재료제용기의 제조방법
EP3619123A1 (fr) Système d'emballage comprenant une pièce moulée fibreuse
WO2017050845A1 (fr) Laminé et procédé de fabrication
AT525125B1 (de) Recyclingfähiges Papier-Verpackungslaminat mit dünner Barrierefolie und guter Aufreisseigenschaft
EP1833920A2 (fr) Ameliorations liees a des composites biodegradables
EP0506650B1 (fr) Matériau d'emballage biodégradable et procédé pour l'obtenir
WO2014009910A2 (fr) Matériau d'emballage stratifié et contenant d'emballage
WO2003020803A2 (fr) Film adhesif biodegradable et corps faconne revetu d'un tel film
DE3927062C2 (de) Verpackungsteil, insbesondere Behälter und Verfahren zu seiner Herstellung
WO2003020803A1 (fr) Film adhesif biodegradable et corps faconne revetu d'un tel film
EP0796731A2 (fr) Stratifié recyclable, biodégradable, résistant à la chaleur et aux basses températures, en particulier pour l'emballage d'aliments
WO2003022540A1 (fr) Procede de fabrication d'objets essentiellement biodegradables
EP0865915B1 (fr) Stratifié d'emballage recyclable, biodégradable, résistant à la chaleur et aux basses températures utilisable en particulier pour la fabrication d'emballages d'aliments
AT519701B1 (de) Verpackungselement
EP2774757A1 (fr) Produit stratifié jetable
JP2004188884A (ja) 双方向完全生分解性成型物
AT522332B1 (de) Kapselplatine
DE102023107364A1 (de) Verfahren und Vorrichtung zum Herstellen eines dreidimensionalen Zelluloseproduktes und dreidimensionales Zelluloseprodukt

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16778243

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16778243

Country of ref document: EP

Kind code of ref document: A1