GB2443613A - Manufacturing bio-degradable paperboard - Google Patents

Manufacturing bio-degradable paperboard Download PDF

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Publication number
GB2443613A
GB2443613A GB0718593A GB0718593A GB2443613A GB 2443613 A GB2443613 A GB 2443613A GB 0718593 A GB0718593 A GB 0718593A GB 0718593 A GB0718593 A GB 0718593A GB 2443613 A GB2443613 A GB 2443613A
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GB
United Kingdom
Prior art keywords
paperboard
layer
degradable
bio
guide films
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.)
Granted
Application number
GB0718593A
Other versions
GB2443613B (en
GB0718593D0 (en
Inventor
Hsi-Ching Chang
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB0718593D0 publication Critical patent/GB0718593D0/en
Publication of GB2443613A publication Critical patent/GB2443613A/en
Application granted granted Critical
Publication of GB2443613B publication Critical patent/GB2443613B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • B32B29/007—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 a foam 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
    • B32B27/06—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
    • B32B27/08—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 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
    • B32B27/36—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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed 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
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/28—Polyesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/54—Starch
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0264—Polyester
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • 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
    • 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
    • B32B2317/20—Starch
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/046—LDPE, i.e. low density polyethylene
    • 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
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • 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
    • B32B2398/00—Unspecified macromolecular compounds
    • 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
    • B32B2439/40—Closed containers
    • B32B2439/62—Boxes, cartons, cases
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • D21H21/50—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 form
    • D21H21/56—Foam
    • 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

Landscapes

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

Abstract

Bio-degradable paperboard is manufactured by preparing paperboard which is pre-heated and received a static electricity removal treatment; spreading a layer of bio-degradable polylactic acid (PLA) or corn starch on a surface of the paperboard 10 by a coating machine 30, using two sub-coating machines 41 located beside a coating head 33 of the coating machine to simultaneously spread two guide films on two sides of the paperboard, the two guide films being low density polyethylene and connected to two outsides of the layer 20; rolling the paperboard and the layer on the paperboard by 12 kg force by two metal rollers 50, and using two cooling rollers 60 to roll the paperboard and the layer on the paperboard, the paperboard with the layer being ready to be cut to desired shapes. The guide films may be coloured and may be cut from the paperboard by a trimmer set 70 located downstream from the cooling rollers. The guide films ensure that the layer 20 does not shake and shift so that a thin and even layer of bio-degradable material can be spread on the paperboard. The bio-degradable paperboard may be used for food containers.

Description

METHOD FOR MANUFACTURING Big-DEGRADABLE PAPERBOARD
FIELD OF THE INVENTION
The present invention relates to a method for manufacturing bio-degradable paperboard for food container.
BACKGROUND OF THE INVENTION
A conventional method for manufacturing bio-degradable paperboard is disclosed in PCI W09853141 and the conventional method disclosed includes an inherent shortcoming which is that after the bio-degradable material is heated, it has to be cooperated with an agent such as a catalyst so as to combine two items. The layer that combines the two items is therefore too thick and requires a significant amount of material so that the manufacturing cost is too high. Besides, the thick layer generated from the coating machine shakes and shifts so that it cannot be evenly spread on the paperboard.
The present invention intends to provide a method which evenly spreads a thin layer of bio-degradable material on the paperboard and the bio-degradable material is made by Polylactic Acid (PLA) or starch which is easily degradable.
SUMMARY OF THE INVENTION
The present invention relates to a method for manufacturing blo-degradable paperboard and the method starts by preparing paperboard which is pre-heated and received an electric electricity removal treatment, and then spreading a layer of bio-degradable Polylactic Acid (PLA) or corn starch on a surface of the paperboard by a coating machine, and then using two sub-coating machines to simultaneously spread two guide films on two sides of the paperboard, the two guide films being made by low density of Polyethylene and connected to two outsides of the layer, and then rolling the paperboard and the layer on the paperboard by 12 kg force by two metal rollers, and then using two cooling rollers to roll the paperboard and the layer on the paperboard such that the paperboard with the layer is ready to be cut.
The primary object of the present invention is to provide a method for manufacturing bio-degradable paperboard which includes a thin and even layer of bio-degradable Polylactic Acid (PLA) or corn starch.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. I shows the arrangement of the parts for proceeding the method of the present invention; Fig. 2 is a cross sectional view to show the bio-degradable layer on the paperboard; Fig. 3 shows the two guide films are generated by two sub-coating machines and the two guide films are connected to sides of the blo-degradable layer, and Fig. 4 shows the flow chart of the steps of the method of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Figs. 1 to 4, the method for manufacturing blo-degradable paperboard of the present invention comprises the following steps: step one 100: preparing a roll of paperboard 10 which is pre- heated and received an electric electricity removal treatment, the paperboard tO is sent below a coating machine 30 by rollers so as to be coated with a layer 20 on at least one of two surfaces of the paperboard 10; step two 200: dehydrating process 20 which dehydrates particles of the bio-degradabte Polylactic Acid (PLA) or corn starch to reduce the humidity by 70 C to 80 C about 10 hours to reach the particles' dew point about -40 C, the dehydrated particles 21 then sent to the container 31 of the coating machine 30; step three 300: heating particles 21 in the heating tank 32 to let the particles of the bio-degradable Polylactic Acid (PLA) or corn starch to be liquid which is sent to the coating head 33 of the coating machine 30 to be extruded a think layer 20 which is spread on a surface of the paperboard 10.
The liquid status of the bio-degradable Polylactic Acid (PLA) or corn starch is stirred by the extruder in the final container 34 and sent to the inverted-shaped coating head 33 to be extruded as the thin layer 20. It is noted that the liquid status of the bio-degradable Polylactic Acid (PLA) or corn starch is kept to be warm by setting the final container 34 to include five stages of temperature control sections. The lowest temperature is 220 C an the final temperature is 270-280 C so as to keep the contents to be liquid status.
step four 400: using two sub-coating machines 41 located on two sides of the coating head 33 of the coating machine 30 and the two sub-coating machines 41 simultaneously spreading two guide films 40 on two sides of the paperboard 10, the two guide films 40 made by low density of Polyethylene and connected to two outsides of the layer 20.
The two guide films 40 ensure that the layer 20 does not shake and shift so that the paperboard 10 is moved steadily and the layer 20 is even and thin. The two sub-coating machines 41 use extruders to extrude the low density of Polyethylene which is colored and the color defines an obvious boundary between the layer 10 and the guide films 40.
step five 500: rolling the paperboard 10 and the layer 20 on the paperboard 10 by 12 kg force by two metal rollers 50 and each metal roller 50 includes a heating device received therein.
The heating device keeps the metal rollers 50 at 50 C to 60 C, and the metal rollers 50 apply 12 to 13 kg force to compress the layer 20 and the paperboard 10 so that the layer 20 is rolled to be 0.01 mm in thickness. One of the two metal rollers 50 is received a non-stick treatment such as a layer of Polytetrafluoro ethylene so as to avoid the layer 20 from being adhered to the rollers 50.
step six 600: using two cooling rollers 60 to roll the paperboard 10 and the layer 20 on the paperboard 10, the two cooling rollers 60 having cooling devices received therein so as to keep the cooling rollers 60 at 28 C to 32 C, the low temperature setting the paperboard 10, a trimmer set 70 is located downstream the cooling rollers 60 so as to cut the two guide films 40 from the paperboard 10.
The cooling rollers 60 ensure the layer 10 to be hardened before the paperboard 10 is scrolled into a roll.
The method ensures the bio-degradable layer 20 is thin and evenly spread on the paperboard and the bio-degradable paperboard 10 is easily to be manufactured at lower cost.
While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.

Claims (4)

  1. WHAT IS CLAIMED IS: 1. A method for manufacturing bio-degradable
    paperboard, comprising: step 1: preparing paperboard which is pre-heated and received an electric electricity removal treatment; step 2: spreading a layer of bio-degradable Polylactic Acid (PLA) or corn starch on a surface of the paperboard by a coating machine; step 3: two sub-coating machines located beside a coating head of the coating machine and simultaneously spreading two guide films on two sides of the paperboard, the two guide films made by low density of Polyethylene and connected to two outsides of the layer; step 4: rolling the paperboard and the layer on the paperboard by 12 kg force by two metal rollers, and step 5: using two cooling rollers to roll the paperboard and the layer on the paperboard, the two cooling rollers having cooling devices received therein, the paperboard with the layer being ready to be cut.
  2. 2. The method as claimed in claim 1, wherein the guide films 40 are colored.
  3. 3. The method as claimed in claim I, wherein a trimmer set is located downstream the cooling rollers and cuts the two guide films from the paperboard.
  4. 4. The method as claimed in claim I, wherein the two metal rollers each have a heating device received therein.
GB0718593A 2006-09-22 2007-09-21 Method for manufacturing bio-degradable paperboard Expired - Fee Related GB2443613B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0618722A GB2441984A (en) 2006-09-22 2006-09-22 Biodegradable paper board

Publications (3)

Publication Number Publication Date
GB0718593D0 GB0718593D0 (en) 2007-12-19
GB2443613A true GB2443613A (en) 2008-05-14
GB2443613B GB2443613B (en) 2011-03-02

Family

ID=37421467

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0618722A Withdrawn GB2441984A (en) 2006-09-22 2006-09-22 Biodegradable paper board
GB0718593A Expired - Fee Related GB2443613B (en) 2006-09-22 2007-09-21 Method for manufacturing bio-degradable paperboard

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0618722A Withdrawn GB2441984A (en) 2006-09-22 2006-09-22 Biodegradable paper board

Country Status (1)

Country Link
GB (2) GB2441984A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111172810A (en) * 2020-01-07 2020-05-19 华南理工大学 Completely biodegradable heat-sealing paper and preparation method and application thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101806014A (en) * 2009-02-16 2010-08-18 伟盟工业股份有限公司 Polylactic acid paperboard and food container manufactured by using same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06270368A (en) * 1993-03-17 1994-09-27 Toppan Printing Co Ltd Laminate and its production
WO1997046381A1 (en) * 1996-06-04 1997-12-11 Neste Oy Paper coated with polylactide and a method for making it
WO1998053141A1 (en) * 1997-05-23 1998-11-26 Cargill, Incorporated Polylactide coated paper

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2068368A1 (en) * 1991-05-13 1992-11-14 Masanobu Ajioka Degradable laminate composition
TWM277594U (en) * 2005-04-27 2005-10-11 Shi-Ching Jang Decomposable paper sheet for making food container

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06270368A (en) * 1993-03-17 1994-09-27 Toppan Printing Co Ltd Laminate and its production
WO1997046381A1 (en) * 1996-06-04 1997-12-11 Neste Oy Paper coated with polylactide and a method for making it
WO1998053141A1 (en) * 1997-05-23 1998-11-26 Cargill, Incorporated Polylactide coated paper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111172810A (en) * 2020-01-07 2020-05-19 华南理工大学 Completely biodegradable heat-sealing paper and preparation method and application thereof

Also Published As

Publication number Publication date
GB2443613B (en) 2011-03-02
GB2441984A (en) 2008-03-26
GB0618722D0 (en) 2006-11-01
GB0718593D0 (en) 2007-12-19

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