CN101806014A - Polylactic acid paperboard and food container manufactured by using same - Google Patents
Polylactic acid paperboard and food container manufactured by using same Download PDFInfo
- Publication number
- CN101806014A CN101806014A CN200910007630A CN200910007630A CN101806014A CN 101806014 A CN101806014 A CN 101806014A CN 200910007630 A CN200910007630 A CN 200910007630A CN 200910007630 A CN200910007630 A CN 200910007630A CN 101806014 A CN101806014 A CN 101806014A
- Authority
- CN
- China
- Prior art keywords
- polylactic acid
- cardboard
- paperboard
- rete
- weight
- 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.)
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Classifications
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- 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
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- 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
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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
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
-
- 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
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
Abstract
The invention relates to a polylactic acid paperboard, which has a paperboard and at least one film layer coated on the surface of the paperboard, wherein the film layer mainly comprises 100 weight percent of completely biodegradable polylactic acid or more than or equal to 97 and less than 100 weight percent of polylactic acid according to the requirements on paper functions. The invention also relates to a food container manufactured by using the polylactic acid paperboard, which is completely biodegradable and can reduce impact on environment.
Description
Technical field
The invention relates to a kind of cardboard, and particularly relevant for the decomposable cardboard of a kind of complete biology.
Background technology
The paper food container that general Food to Go is used is as cup, dish, bowl etc.Consider based on cost and function, above-mentioned paper food container mostly with on the cardboard by coating plastic film, through pressing mold or cut bonding and make.Because paper products itself can't waterproof, therefore on cardboard, reached waterproof, grease proofing purpose by coating plastic film, food containers can not leaked when loading liquid.And the material of plastic film such as polyethylene terephthalate (Polyethylene terephthalate, PET), polyvinyl alcohol (Polyvinyl Alcohol, PVA), ethylene-vinyl acetate copolymer (Ethylene Vinyl Acetate, EVA) or low density polyethylene (LDPE) (Low densityPolyethylene, LDPE).
Yet along with the subject under discussion of environmental protection day by day comes into one's own, the plastic film that is covered on the above-mentioned paper food container all can't decompose after discarding.Though can utilize burning method to handle above-mentioned food containers, also when burning, produce waste gas easily.Therefore, above-mentioned food containers becomes big pollution sources of environment easily after using.
Though but existing many biology decomposing materials are applied to replacement conventional plastic material on the food containers, but biology decomposing material such as PLA, starch or polycaprolactone (Polycaprolactone, PCL).And but in the biology decomposing food container or cardboard of present indication, the content of PLA is more than 50%, and partly still contains abiotic decomposability material in the food containers, thereby influences the decomposition rate of food containers.Moreover abiotic decomposability material also still resides in the environment and pollutes, and does not solve environmental pollution problems fully.
Summary of the invention
In sum, a purpose of the present invention is to provide a kind of polylactic acid paperboard, but has highly purified biology decomposing material, PLA.This polylactic acid paperboard can decompose in environment after the use fast, reduces environmental pollution.
According to above-mentioned purpose of the present invention, the present invention proposes a kind of polylactic acid paperboard, comprises cardboard at least and at least one rete is coated on the cardboard.Rete has poly-lactic acid material, and above-mentioned poly-lactic acid material content is 97～100 weight %.
Wherein above-mentioned rete is positioned at the one-sided or bilateral of cardboard.
Wherein above-mentioned rete has 3 weight % following starch, polycaprolactone or other Biodegradable material.
Another object of the present invention is to provide a kind of food containers, comprise the polylactic acid paperboard of the foregoing description at least.
Another purpose of the present invention is to provide a kind of polylactic acid paperboard, comprises cardboard and at least one rete at least and is covered on the cardboard to drench the film mode.Rete has the poly-lactic acid material of 100 weight %.
Use polylactic acid paperboard of the present invention, replace the conventional plastic film, not only still have excellent waterproof, grease proofing effect with polylactic acid membrane, and because of the general plastic material rigidity height of PLA, the use cal(l)iper can be thinner, and promptly the cardboard basic weight is less, can reduce the use amount of paper wood.Because PLA is complete Biodegradable, therefore in the non-confined space of proper temperature, humidity, polylactic acid paperboard can be broken down into water and carbon dioxide in addition.And water and carbon dioxide can return in environment, for biological recycling.Even utilize the incineration mode, the also general plastic material of the heat energy of generation is low, can prolong the service life of incinerator.
Description of drawings
For above and other objects of the present invention, feature, advantage and embodiment can be become apparent, appended
The description of the drawings is as follows:
Fig. 1 is the structural representation that illustrates according to a kind of polylactic acid paperboard of an embodiment of the present invention;
Fig. 2 is the structural representation that illustrates according to a kind of polylactic acid paperboard of another embodiment of the present invention.
[primary clustering symbol description]
100,200: polylactic acid paperboard 110,210: cardboard
120,220: rete
The specific embodiment
Fig. 1 is the structural representation that illustrates according to a kind of polylactic acid paperboard of an embodiment of the present invention.Polylactic acid paperboard 100 has cardboard 110 and rete 120.Rete 120 is one-sided for the mode of drenching film, coating or applying with 97～100 weight % poly-lactic acid material utilizations is coated in cardboard 110.Wherein, the suggestion of the PLA content of rete 120 can be 98 weight %, 99 weight %, 99.5 weight % or 100 weight %.
In addition, also can add other upgrading material in the rete 120 according to follow-up different product making requirement, for example the starch below the blending 3 weight %, polycaprolactone, polyalcohol or other Biodegradable material in rete 120.Different production for example requires: needing through folding carton, similarly is packing box or minaudiere, or the paper device of given shape, supports paper frame or egg supporting case as packaging, again or the cardboard of PLA lining thinner thickness.
In addition, rete 120 is also non-limiting one-sided in cardboard 110 with single layer coating, and also can be multilayer, to be coated on cardboard 110 one-sided.Perhaps as shown in Figure 2, Fig. 2 is the structure that illustrates according to a kind of polylactic acid paperboard of another embodiment of the present invention.Polylactic acid paperboard 200 in this embodiment is similar to aforementioned embodiments, has cardboard 210 and rete 220 equally.Difference is in rete 220 and is coated on cardboard 210 bilaterals for utilizing individual layer to drench the film mode, makes cardboard 210 both sides all have water-proof function.Also or, rete 220 drenches the film mode with multilayer and is coated on cardboard 210 bilaterals.
Above-mentioned polylactic acid paperboard can be applicable to make various food containers, as water tumbler, coffee cup, service plate class or bowl class container.
Table one is a polylactic acid paperboard of the present invention, during PLA content 100%, polylactic acid paperboard is placed compost environment, and promptly temperature is 56～60 ℃, does not have under the air ventilation of carbon dioxide the degree of decomposition of different number of days to contain saturated moisture content.
Table one
In table one result polylactic acid paperboard of the present invention as can be known, PLA content is 100% o'clock, can decompose to surpass 50% in 30 days, and surpass after 80 days, can decompose to reach more than 90%.
By the invention described above embodiment as can be known, use polylactic acid paperboard of the present invention, under proper temperature, humidity and non-confined space, polylactic acid paperboard can be close to and is broken down into water and carbon dioxide fully.And water and carbon dioxide can return in environment, utilize for biology again, reduce environmental pollution.And after the food containers made from polylactic acid paperboard used, even utilize the incineration mode to handle, the also general plastic material of the heat energy of generation was low, can prolong the service life of incinerator.Moreover because the general plastic material rigidity height of PLA, therefore employed cal(l)iper can be thinner, and promptly the cardboard basic weight is less, can reduce the use amount of paper wood.
Though the present invention discloses as above with embodiment; right its is not in order to qualification the present invention, any person skilled in the art, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is when being as the criterion with the scope that claims were defined.
Claims (9)
1. a polylactic acid paperboard is characterized in that, comprises at least:
One cardboard; And
At least one rete is coated on this cardboard, and this rete has a poly-lactic acid material, and this poly-lactic acid material content is 97～100 weight %.
2. polylactic acid paperboard according to claim 1 is characterized in that, this rete is positioned at the one-sided or bilateral of this cardboard.
3. polylactic acid paperboard according to claim 1 is characterized in that, this poly-lactic acid material content is 98 weight %, 99 weight % or 99.5 weight %.
4. polylactic acid paperboard according to claim 1 is characterized in that, this rete has 3 weight % following starch, polycaprolactone, polyalcohol or other Biodegradable material.
5. polylactic acid paperboard according to claim 1 is characterized in that, this rete is coated on this cardboard to drench film, coating or laminating type.
6. a food containers is characterized in that, comprises polylactic acid paperboard as claimed in claim 1 at least.
7. a polylactic acid paperboard is characterized in that, comprises at least:
One cardboard; And
At least one rete criticizes being overlying on this cardboard, and this rete has the poly-lactic acid material of one 100 weight %.
8. polylactic acid paperboard according to claim 7 is characterized in that, this rete is positioned at the one-sided or bilateral of this cardboard.
9. polylactic acid paperboard according to claim 7 is characterized in that, this rete is coated on this cardboard to drench film, coating or laminating type.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910007630A CN101806014A (en) | 2009-02-16 | 2009-02-16 | Polylactic acid paperboard and food container manufactured by using same |
| PCT/CN2009/000647 WO2010091536A1 (en) | 2009-02-16 | 2009-06-11 | Polylactic acid paperboard and food container formed therefrom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910007630A CN101806014A (en) | 2009-02-16 | 2009-02-16 | Polylactic acid paperboard and food container manufactured by using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101806014A true CN101806014A (en) | 2010-08-18 |
Family
ID=42561358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910007630A Pending CN101806014A (en) | 2009-02-16 | 2009-02-16 | Polylactic acid paperboard and food container manufactured by using same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101806014A (en) |
| WO (1) | WO2010091536A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105966014A (en) * | 2016-05-03 | 2016-09-28 | 东莞市酬勤包装制品有限公司 | Fully biodegradable composite material |
| CN109868682A (en) * | 2019-01-15 | 2019-06-11 | 上海馨星环保科技有限公司 | A kind of technique preparing polylactic acid membrane and its sizer |
| CN110184854A (en) * | 2019-06-03 | 2019-08-30 | 武汉鑫亚泰科技有限公司 | A kind of PLA leaching membrane paper and preparation method thereof |
| CN110552252A (en) * | 2019-09-10 | 2019-12-10 | 浙江恒达新材料股份有限公司 | Conductive heating food packaging paper and preparation method thereof |
| CN110670411A (en) * | 2019-09-10 | 2020-01-10 | 衢州五洲特种纸业股份有限公司 | Food paperboard with heat preservation and heating functions and preparation method thereof |
| CN110685186A (en) * | 2019-09-10 | 2020-01-14 | 衢州五洲特种纸业股份有限公司 | Modified graphene/nano-cellulose conductive functional coating and preparation method and application thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049185A (en) * | 2016-05-19 | 2016-10-26 | 苏州倍力特物流设备有限公司 | Polylactic-acid composite paperboard film material and preparation method therefor |
| CN112796167B (en) * | 2021-01-14 | 2022-12-06 | 深圳光华伟业股份有限公司 | Biodegradable low-temperature-resistant laminating paper and preparation method thereof |
| CN112853817B (en) * | 2021-01-27 | 2022-12-23 | 青岛浩恩医药耗材有限公司 | Method for preparing medicine packaging material from degradable plastic |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104326C (en) * | 1999-12-22 | 2003-04-02 | 平湖市比例包装材料有限公司 | Composite material for packing food and its preparing process |
| JP2003220680A (en) * | 2002-01-30 | 2003-08-05 | Heiwa Paper Co Ltd | Biodegradable water-resistant printing paper |
| TWI290095B (en) * | 2006-01-13 | 2007-11-21 | Shi-Ching Jang | Method for manufacturing paper products with character indication for foodstuffs |
| TW200742757A (en) * | 2006-05-08 | 2007-11-16 | Far Eastern Textile Ltd | Polylactic acid composition, transparent heat resistant biodegradable molded article made of the same, and method for making the article |
| GB2441984A (en) * | 2006-09-22 | 2008-03-26 | Hsi-Ching Chang | Biodegradable paper board |
| JP5008405B2 (en) * | 2007-01-18 | 2012-08-22 | 剛行 山松 | Paper cup made of polylactic acid laminated paper |
-
2009
- 2009-02-16 CN CN200910007630A patent/CN101806014A/en active Pending
- 2009-06-11 WO PCT/CN2009/000647 patent/WO2010091536A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105966014A (en) * | 2016-05-03 | 2016-09-28 | 东莞市酬勤包装制品有限公司 | Fully biodegradable composite material |
| CN109868682A (en) * | 2019-01-15 | 2019-06-11 | 上海馨星环保科技有限公司 | A kind of technique preparing polylactic acid membrane and its sizer |
| CN110184854A (en) * | 2019-06-03 | 2019-08-30 | 武汉鑫亚泰科技有限公司 | A kind of PLA leaching membrane paper and preparation method thereof |
| CN110552252A (en) * | 2019-09-10 | 2019-12-10 | 浙江恒达新材料股份有限公司 | Conductive heating food packaging paper and preparation method thereof |
| CN110670411A (en) * | 2019-09-10 | 2020-01-10 | 衢州五洲特种纸业股份有限公司 | Food paperboard with heat preservation and heating functions and preparation method thereof |
| CN110685186A (en) * | 2019-09-10 | 2020-01-14 | 衢州五洲特种纸业股份有限公司 | Modified graphene/nano-cellulose conductive functional coating and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010091536A1 (en) | 2010-08-19 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100818 |