CN110656543A - Environment-friendly laminating paper for containing cold drinks - Google Patents
Environment-friendly laminating paper for containing cold drinks Download PDFInfo
- Publication number
- CN110656543A CN110656543A CN201910919496.5A CN201910919496A CN110656543A CN 110656543 A CN110656543 A CN 110656543A CN 201910919496 A CN201910919496 A CN 201910919496A CN 110656543 A CN110656543 A CN 110656543A
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- CN
- China
- Prior art keywords
- paper
- environment
- containing cold
- cold drinks
- laminating paper
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- 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
-
- 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
- D21H27/18—Paper- or board-based structures for surface covering
- D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
- D21H27/26—Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures
- D21H27/28—Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures treated to obtain specific resistance properties, e.g. against wear or weather
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/22—Polyalkenes, e.g. polystyrene
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—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
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
Abstract
The invention discloses environment-friendly laminating paper for containing cold drinks. The outer side surface of the invention is provided with the waterproof barrier coating, which not only can improve the strength and toughness of the film coated paper, but also can effectively carry out waterproof barrier, delay the invasion of condensed water drops into the paper, greatly prolong the service life of the container, and greatly reduce the cost compared with the double-sided film coated PLA.
Description
Technical Field
The invention relates to the technical field of disposable paper container production, in particular to environment-friendly laminating paper for containing cold drinks.
Background
With the rapid convergence of living joints, the demand of people in all countries in the world for disposable paper containers is increasing. The existing paper container mostly uses PE (polyethylene) laminating paper as a raw material, wherein the PE material is difficult to naturally degrade, cancerogenic substances, namely dioxin, are generated by burning, and thick smoke and irritant toxic and harmful gases generated by burning pollute the atmosphere and seriously pollute the environment.
PLA resin gradually replaces PE resin and is accepted by all countries in the world. Single-side PLA laminated paper containers are mostly available in single markets.
In single-sided PLA film-coated paper containers such as paper cups, paper bowls and paper lunch boxes for containing cold drinks, water drops are often condensed on the outer side of the containers and permeate into the base paper, so that the paper containers become soft and the strength is reduced. Chinese patent CN 208647363U proposes a method for manufacturing paper tableware by using double-sided PLA (Poly lactic acid) coated paper to replace the traditional double-sided PE (Poly ethylene) coated paper. The double-sided laminating PLA resin is high in price and is not accepted by the market.
Disclosure of Invention
The invention aims to overcome the defects that the existing single-sided PLA (polylactic acid) film coated paper container for containing condensed water beads on the surface of a cold drink is soft, the strength is reduced, the cost of the double-sided PLA film coated paper is high and the like, and provides the environment-friendly film coated paper for containing cold drink, wherein the outer side surface of the environment-friendly film coated paper is provided with a waterproof barrier coating, so that the strength and the toughness of the film coated paper can be improved, the waterproof barrier can be effectively carried out, the condensed water beads are prevented from invading the paper, the service life of the container is greatly prolonged, and the cost is greatly reduced compared with the double.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a splendid attire cold drink's environmental protection drenches membrane paper, is regarded as the basic unit by food level body paper, and the inboard side of basic unit drenches membrane degradable resin, and the basic unit lateral surface has waterproof separation coating.
The outer side surface of the base layer is coated with the waterproof barrier coating mainly composed of the specific micro-particle polyolefin aqueous dispersion, the particle size is less than 1 mu m, and the waterproof barrier coating can be uniformly and densely distributed on the surface of the base layer to form a waterproof layer, so that the waterproof performance of the surface of the food-grade base paper is improved; and the water-based dispersion of the particulate polyolefin has small molecular weight, is made of non-high molecular plastic materials, and the waterproof barrier coating is crushed along with paper pulp in the recycling process, so that the waterproof barrier coating can be easily separated in the cleaning and dust removing stage, the recycling process is more convenient and more convenient, and the environment-friendly effect is facilitated.
The inner side surface of the base layer is coated with the degradable resin, so that the degradable resin can be completely degraded, and the environment-friendly concept of the current society is met.
The waterproof barrier coating is formed by coating polyolefin resin aqueous dispersion, and the particle size of the polyolefin resin aqueous dispersion is less than 1 micron; the solid content of the polyolefin resin aqueous dispersion is 35-40%.
The coating amount of the waterproof barrier coating is 0.5-15g/m on a dry basis2。
The coating amount of the waterproof barrier coating is 4-6g/m on a dry basis2。
And after the patterns are printed on the outer side surface of the base layer, a waterproof barrier coating is coated.
The paper quantitative amount of the food-grade base paper is 120-400g/m2And the thickness is 150-600 μm.
The degradable resin is PLA, and the gram weight of the PLA drenches the film is 15-50g/m2。
The gram weight of the PLA drenches the membrane is 28-32g/m2。
The degradable resin is PBS (poly butylene succinate), and the gram weight of the PBS laminated film is 10-30g/m2。
The gram weight of the PBS laminated film is 16-18g/m2。
The invention has the beneficial effects that: the outer side surface of the invention is provided with the waterproof barrier coating, which not only can improve the strength and toughness of the film coated paper, but also can effectively perform waterproof barrier, delay the invasion of condensed water drops into the paper and greatly prolong the service life of the container, and compared with the double-sided film coated PLA, the cost is greatly reduced by about 10 percent.
Drawings
FIG. 1 is a schematic diagram of a hierarchical structure of the present invention.
Detailed Description
The technical solution of the present invention will be further specifically described below by way of specific examples.
In the present invention, the raw materials and equipment used are commercially available or commonly used in the art, unless otherwise specified. The methods in the following examples are conventional in the art unless otherwise specified.
Selecting food-grade base cup paper of Zhejiang five-star paper industry CoThe amount is 300g/m2And the thickness is 300 mu m. PLA particles from Natureworks, USA, with a mark of 2003D, were selected. PBS, commercially available, Japan Showa. The polyolefin resin aqueous dispersion was purchased from mitsui chemical, model S300, 35% solids, 400mPas viscosity, 0.5 μm particle size.
Example 1:
as shown in figure 1, the environment-friendly laminating paper for containing cold drinks is prepared by taking food-grade base paper as a base layer 1, laminating degradable resin 2 on the inner side of the base layer, printing a pattern 4 on the outer side of the base layer, and then coating a waterproof barrier coating 3, wherein the waterproof barrier coating is formed by coating polyolefin resin aqueous dispersion, and the coating amount is 4g/m on a dry basis2. The degradable resin is PLA, and the gram weight of the PLA drenches the membrane is 28g/m2。
Example 2:
as shown in figure 1, the environment-friendly laminating paper for containing cold drinks is prepared by taking food-grade base paper as a base layer 1, laminating degradable resin 2 on the inner side of the base layer, printing a pattern 4 on the outer side of the base layer, and then coating a waterproof barrier coating 3, wherein the waterproof barrier coating is formed by coating polyolefin resin aqueous dispersion, and the coating amount is 6g/m on a dry basis2. The degradable resin is PLA, and the gram weight of the PLA drenches the membrane is 32g/m2。
Example 3:
as shown in figure 1, the environment-friendly laminating paper for containing cold drinks is prepared by taking food-grade base paper as a base layer 1, laminating degradable resin 2 on the inner side of the base layer, printing a pattern 4 on the outer side of the base layer, and then coating a waterproof barrier coating 3, wherein the waterproof barrier coating is formed by coating polyolefin resin aqueous dispersion, and the coating amount is 5g/m on a dry basis2. The degradable resin is PLA, and the gram weight of the PLA drenches membrane is 30g/m2。
Example 4:
as shown in figure 1, the environment-friendly laminating paper for containing cold drinks is prepared by taking food-grade base paper as a base layer 1, laminating degradable resin 2 on the inner side of the base layer, printing a pattern 4 on the outer side of the base layer, and then coating a waterproof barrier coating 3, wherein the waterproof barrier coating is formed by coating polyolefin resin aqueous dispersion, and the coating amount is 4g/m on a dry basis2. The degradable resin isPBS, the gram weight of PBS laminated film is 16g/m2。
Example 5:
as shown in figure 1, the environment-friendly laminating paper for containing cold drinks is prepared by taking food-grade base paper as a base layer 1, laminating degradable resin 2 on the inner side of the base layer, printing a pattern 4 on the outer side of the base layer, and then coating a waterproof barrier coating 3, wherein the waterproof barrier coating is formed by coating polyolefin resin aqueous dispersion, and the coating amount is 6g/m on a dry basis2. The degradable resin is PBS, and the gram weight of the PBS laminated film is 18g/m2。
Example 6:
as shown in figure 1, the environment-friendly laminating paper for containing cold drinks is prepared by taking food-grade base paper as a base layer 1, laminating degradable resin 2 on the inner side of the base layer, printing a pattern 4 on the outer side of the base layer, and then coating a waterproof barrier coating 3, wherein the waterproof barrier coating is formed by coating polyolefin resin aqueous dispersion, and the coating amount is 5g/m on a dry basis2. The degradable resin is PBS, and the gram weight of the PBS laminated film is 17g/m2。
The environment-friendly laminating paper prepared by the process can be processed into paper containers such as paper cups, paper bowls, paper lunch boxes and the like.
The inner side surface of the food-grade base paper is coated with PLA with the fixed quantity of 30g/m2The outer side surfaces of the food-grade base paper are respectively printed and coated for 1 time, 2 times and 3 times, and the dry bases of the waterproof barrier layers are respectively (particle polyolefin aqueous dispersion materials) 2g/m2、4g/m2、6g/m2The paper surface water absorbency (60s) was tested as follows:
| surface is not coated | 2g/m2 | 4g/m2 | 6g/m2 | |
| Test value (g/m)2) | 40.9 | 12.7 | 1.6 | 0.2 |
Along with the thickening of the coating, the waterproof performance of the surface of the paper is obviously improved.
The sample is made into a paper cup, the paper cup is subjected to a contrast test with a double-PLA film-coated paper cup, cold water is poured into the paper cup, an ice block is added, water beads are condensed on the surface of the paper cup, and the test result is as follows:
| surface is not coated | 2g/m2 | 4g/m2 | 6g/m2 | Double PLA paper cup | |
| 30 minutes | The cup body becomes soft | OK | OK | OK | OK |
| 1 hour | / | The cup body becomes soft | OK | OK | OK |
| 2 hours | / | / | OK | OK | OK |
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (10)
1. The environment-friendly laminating paper for cold drink is characterized in that food-grade base paper is used as a base layer, degradable resin is laminated on the inner side surface of the base layer, and a waterproof barrier coating is arranged on the outer side surface of the base layer.
2. The environment-friendly laminating paper for containing cold drinks according to claim 1, characterized in that: the waterproof barrier coating is formed by coating polyolefin resin aqueous dispersion, and the particle size of the polyolefin resin aqueous dispersion is less than 1 micron; the solid content of the polyolefin resin aqueous dispersion is 35-40%.
3. The environmental-friendly laminating paper for containing cold drinks according to claim 1 or 2, which is characterized in thatCharacterized in that: the coating amount of the waterproof barrier coating is 0.5-15g/m on a dry basis2。
4. The environment-friendly laminating paper for containing cold drinks according to claim 3, characterized in that: the coating amount of the waterproof barrier coating is 4-6g/m on a dry basis2。
5. The environment-friendly laminating paper for containing cold drinks according to claim 1, characterized in that: and after the patterns are printed on the outer side surface of the base layer, a waterproof barrier coating is coated.
6. The environment-friendly laminating paper for containing cold drinks according to claim 1, characterized in that: the paper quantitative amount of the food-grade base paper is 120-400g/m2And the thickness is 150-600 μm.
7. The environment-friendly laminating paper for containing cold drinks according to claim 1, characterized in that: the degradable resin is PLA, and the gram weight of the PLA drenches the film is 15-50g/m2。
8. The environment-friendly laminating paper for containing cold drinks according to claim 7, wherein the laminating paper comprises: the gram weight of the PLA drenches the membrane is 28-32g/m2。
9. The environment-friendly laminating paper for containing cold drinks according to claim 1, characterized in that: the degradable resin is PBS, and the gram weight of the PBS laminated film is 10-30g/m2。
10. The environment-friendly laminating paper for containing cold drinks according to claim 9, wherein the laminating paper comprises: the gram weight of the PBS laminated film is 16-18g/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910919496.5A CN110656543A (en) | 2019-09-26 | 2019-09-26 | Environment-friendly laminating paper for containing cold drinks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910919496.5A CN110656543A (en) | 2019-09-26 | 2019-09-26 | Environment-friendly laminating paper for containing cold drinks |
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| Publication Number | Publication Date |
|---|---|
| CN110656543A true CN110656543A (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910919496.5A Pending CN110656543A (en) | 2019-09-26 | 2019-09-26 | Environment-friendly laminating paper for containing cold drinks |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926621A (en) * | 2020-07-16 | 2020-11-13 | 长沙铭凯纸制品有限公司 | Preparation method of combined environment-friendly paper |
| CN112853817A (en) * | 2021-01-27 | 2021-05-28 | 青岛浩恩医药耗材有限公司 | Method for preparing medicine packaging material from degradable plastic |
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| JPS5213539A (en) * | 1975-07-22 | 1977-02-01 | Mitsui Petrochem Ind Ltd | Preparation of aqueous dispersion of polyolefin composition |
| US20030187128A1 (en) * | 2001-01-15 | 2003-10-02 | Kenjin Shiba | Aqueous polyolefin resin dispersion |
| US6852198B1 (en) * | 1999-07-08 | 2005-02-08 | Goyo Paper Working Co., Ltd. | Resin composition, water-resistant/moisture-proof paper, containing the same, and process for producing the same |
| CN1791634A (en) * | 2003-05-22 | 2006-06-21 | 尤尼吉可株式会社 | Aqueous polyolefin resin dispersion, process for producing the same, and water-based coating material comprising the same |
| JP2011117107A (en) * | 2009-12-07 | 2011-06-16 | Oji Paper Co Ltd | Water-repellent paper |
| US20140031187A1 (en) * | 2012-01-26 | 2014-01-30 | Dow Global Technologies Llc | Sack paper with vapour barrier |
| CN208647363U (en) * | 2018-07-18 | 2019-03-26 | 厦门伟盟环保材料有限公司 | A kind of bis- lamination paper table wares of PLA |
-
2019
- 2019-09-26 CN CN201910919496.5A patent/CN110656543A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213539A (en) * | 1975-07-22 | 1977-02-01 | Mitsui Petrochem Ind Ltd | Preparation of aqueous dispersion of polyolefin composition |
| US6852198B1 (en) * | 1999-07-08 | 2005-02-08 | Goyo Paper Working Co., Ltd. | Resin composition, water-resistant/moisture-proof paper, containing the same, and process for producing the same |
| US20030187128A1 (en) * | 2001-01-15 | 2003-10-02 | Kenjin Shiba | Aqueous polyolefin resin dispersion |
| CN1791634A (en) * | 2003-05-22 | 2006-06-21 | 尤尼吉可株式会社 | Aqueous polyolefin resin dispersion, process for producing the same, and water-based coating material comprising the same |
| JP2011117107A (en) * | 2009-12-07 | 2011-06-16 | Oji Paper Co Ltd | Water-repellent paper |
| US20140031187A1 (en) * | 2012-01-26 | 2014-01-30 | Dow Global Technologies Llc | Sack paper with vapour barrier |
| CN208647363U (en) * | 2018-07-18 | 2019-03-26 | 厦门伟盟环保材料有限公司 | A kind of bis- lamination paper table wares of PLA |
Non-Patent Citations (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926621A (en) * | 2020-07-16 | 2020-11-13 | 长沙铭凯纸制品有限公司 | Preparation method of combined environment-friendly paper |
| CN112853817A (en) * | 2021-01-27 | 2021-05-28 | 青岛浩恩医药耗材有限公司 | Method for preparing medicine packaging material from degradable plastic |
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Application publication date: 20200107 |
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