CN113638267A - Preparation method of degradable coating high-barrier paper - Google Patents
Preparation method of degradable coating high-barrier paper Download PDFInfo
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- CN113638267A CN113638267A CN202110924202.5A CN202110924202A CN113638267A CN 113638267 A CN113638267 A CN 113638267A CN 202110924202 A CN202110924202 A CN 202110924202A CN 113638267 A CN113638267 A CN 113638267A
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- coating
- polyvinyl alcohol
- paper
- montmorillonite
- coating solution
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- 238000000576 coating method Methods 0.000 title claims abstract description 55
- 239000011248 coating agent Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000123 paper Substances 0.000 claims abstract description 35
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 26
- 235000013871 bee wax Nutrition 0.000 claims abstract description 19
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 18
- 239000012166 beeswax Substances 0.000 claims abstract description 17
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 16
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 16
- 230000004888 barrier function Effects 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 10
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 239000002655 kraft paper Substances 0.000 claims abstract description 8
- 229910017059 organic montmorillonite Inorganic materials 0.000 claims abstract description 5
- 239000012153 distilled water Substances 0.000 claims abstract description 4
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims abstract description 3
- 239000011247 coating layer Substances 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 239000000839 emulsion Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000008961 swelling Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 12
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract description 10
- 235000013305 food Nutrition 0.000 abstract description 7
- 239000005022 packaging material Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000007766 cera flava Substances 0.000 description 2
- KMEHEQFDWWYZIO-UHFFFAOYSA-N triacontyl hexadecanoate Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCOC(=O)CCCCCCCCCCCCCCC KMEHEQFDWWYZIO-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003674 animal food additive Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000009512 pharmaceutical packaging Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- D21H27/10—Packing paper
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/60—Waxes
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
-
- 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
-
- 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
- D21H19/12—Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
-
- 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
- D21H19/82—Paper comprising more than one coating superposed
-
- 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
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
- D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of paper manufacturing, and relates to a preparation method of degradable coated high-barrier paper, which comprises the following steps: firstly, preparing an acrylic acid coating solution with solid content of 48.5 +/-1 wt%; dissolving organic montmorillonite in distilled water, performing ultrasonic treatment at 25 ℃ to obtain 0.5-5% montmorillonite suspension, and dissolving polyvinyl alcohol powder in the suspension to obtain a polyvinyl alcohol-montmorillonite coating solution with the mass percentage concentration of 5-15%; preparing a beeswax coating solution with the mass percentage concentration of 95-100%; and finally, sequentially coating the prepared coating solution on the surface of the paper base at 45-55 ℃ to form coatings, and drying the coatings for 15-30 min at 50-60 ℃ to obtain the paper base coating. The preparation method is simple in preparation process, and the environment-friendly coating solution is adopted to coat and dry the surface of the paper base, so that the kraft paper material with extremely poor barrier property is prepared into the high-barrier degradable packaging material, which meets the food safety regulations, becomes an environment-friendly green packaging material, and is expected to be further popularized and applied.
Description
Technical Field
The invention belongs to the technical field of paper manufacturing, relates to barrier paper, and particularly relates to a preparation method of degradable coated high-barrier paper.
Background
In recent years, with the increasing environmental pollution, green packaging has become a focus of global attention. The natural plant fiber is the green environment-friendly material with the most development potential at present, such as a paper-based material, and has the advantages of low cost, reproducibility and complete biodegradability. However, the low barrier property is a key problem that restricts the application of the film in the field of packaging, and the improvement of the water vapor barrier property and the oxygen barrier property has become a focus of research.
Polyvinyl alcohol (PVA) is widely used in the field of food and pharmaceutical packaging because of its safety, good biocompatibility, mechanical properties, stable properties, and the like. The montmorillonite nanosheets distributed in a layered manner improve the water resistance, thermal stability, gas barrier property and the like of the polyvinyl alcohol, and can be used as a film coating to be applied to food.
Beeswax, also known as beeswax, is an edible substance that is polar and readily forms a dense molecular network. The beeswax is a mixture of myricyl palmitate and beeswax, can be used as additive in edible film and feed additive for fruit and vegetable preservation, and has wide application in cosmetic industry, such as making lipstick, hair cream and skin lotion.
Acrylic acid starts in the last 50 th century in China, has high glossiness and excellent medium resistance, is an important unsaturated organic acid in industrial production, and is widely applied to processing industries such as coatings, adhesives and the like.
Those skilled in the field of food packaging have endeavored to develop novel food high barrier films that impart oxygen permeation resistance and water resistance to paper packaging materials, are degradable, and are green.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a preparation method of a coating barrier material with high-strength water and oxygen resistance.
A preparation method of degradable coated high-barrier paper comprises the following steps:
1) preparing a coating solution with the solid content of 48.5 +/-1 wt% from the Korea acrylic emulsion (RX-20);
2) dissolving organic montmorillonite in distilled water, and performing ultrasonic treatment at 25 ℃ to obtain a uniformly mixed montmorillonite suspension liquid with the concentration of 0.5-5%; weighing polyvinyl alcohol powder, dissolving the polyvinyl alcohol powder in a montmorillonite suspension, swelling the polyvinyl alcohol powder in cold water for 3-5 hours, and heating and dissolving the polyvinyl alcohol powder at 85-95 ℃ for 1-2 hours to prepare a polyvinyl alcohol-montmorillonite (PVA-MMT) coating solution with the mass percentage concentration of 5-15%, wherein the mass ratio of the organic montmorillonite to the polyvinyl alcohol powder is 0.5-5 g: 5-15 g;
3) heating at 65-75 ℃ to dissolve the beeswax, and preparing a beeswax coating solution with the mass percentage concentration of 95-100%;
4) and sequentially coating the prepared coating solution on the surface of the paper base at 45-55 ℃ to form coatings, and drying the coatings at 50-60 ℃ for 15-30 min to obtain the paper base coating.
In the better disclosure example of the invention, the coating sequence in the step 4) is acrylic emulsion, beeswax coating solution, PVA-MMT coating solution and acrylic emulsion in sequence.
In a preferred embodiment of the invention, the coating in the step 4) is an acrylic coating layer, a beeswax coating layer, a polyvinyl alcohol-montmorillonite coating layer and an acrylic coating layer, and the coating weight is 2-10 g, 1-5 g, 2-10 g and 2-10 g respectively.
In the better disclosed embodiment of the invention, the paper base in the step 4) is kraft paper, the A4 breadth is 65-70 mu m in thickness.
The degradable coating high-barrier paper prepared by the method is formed by compounding a paper base (1) and a coating layer on the surface of the paper base, wherein the coating layer sequentially comprises an acrylic coating layer (2), a beeswax layer (3), a polyvinyl alcohol-montmorillonite coating layer (4) and an acrylic coating layer (5).
The degradable coating high-barrier paper prepared by the method detects that the oxygen transmission rate is less than 30cm under the conditions of 38 ℃ and 90% humidity3/m224h, water vapor transmission rate < 50 (g/(m)2·d))。
Advantageous effects
The invention effectively combines the edible and degradable materials with the paper-based material, thereby improving the storage quality and shelf life of the food. The preparation method is simple in preparation process, the environment-friendly coating solution is adopted to simply coat and dry the surface of the paper base, the kraft paper material with extremely poor barrier property is prepared into the high-barrier degradable packaging material, the food safety regulation is met, the use cost is reduced, and the environment-friendly degradable packaging material is formed due to natural degradation, and is expected to be further popularized and applied.
Drawings
FIG. 1 is a schematic structural diagram of degradable coated high-barrier paper;
wherein, 1, paper base; 2. an acrylic acid coating layer; 3. coating a film layer with beeswax; 4. a PVA-MMT coating layer; 5. acrylic acid coating layer.
Detailed Description
The present invention will be described in detail below with reference to examples to enable those skilled in the art to better understand the present invention, but the present invention is not limited to the following examples.
Example 1
The coating film barrier material comprises kraft paper and a coating film layer, wherein the coating film layer comprises an acrylic acid coating film layer, a bee wax layer, a polyvinyl alcohol-montmorillonite clay coating film layer and an acrylic acid coating film layer which are compounded together, and the addition amounts of the acrylic acid coating film layer, the bee wax coating film layer, the polyvinyl alcohol-montmorillonite clay coating film layer and the acrylic acid coating film layer are respectively 2-10 g, 1-5 g, 2-10 g and 2-10 g.
The coating barrier material has high-strength water-blocking and oxygen-blocking performances.
Example 2
In this example, an acrylic coating layer was prepared using an acrylic paint; dissolving montmorillonite (MMT) in distilled water, performing ultrasonic treatment at 25 ℃ to obtain a uniformly mixed 3% MMT suspension, weighing 50g of polyvinyl alcohol (PVA) powder, dissolving the PVA-MMT suspension in 450mL of 3% MMT suspension, swelling the PVA-MMT mixture in cold water for 4 hours, heating and dissolving the mixture at 90 ℃ for 2 hours to obtain a 10% PVA-MMT solution, and storing to prepare a PVA-MMT coating layer; heating and dissolving at 70 deg.C to obtain Cera flava solution, and keeping the temperature to prepare Cera flava coating layer; kraft paper with the thickness of 68 mu m is taken as a base material, 4g of acrylic acid coating layer, 3g of beeswax coating layer, 4g or 6g of polyvinyl alcohol-montmorillonite coating layer and 4g of acrylic acid coating layer are sequentially coated on the surface of the kraft paper at the temperature of 50 ℃, and the kraft paper is dried for 30min at the temperature of 50 ℃ to prepare the coating barrier material.
The following table 1 shows the performance results of the coated barrier material obtained in this example:
the above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (6)
1. A preparation method of degradable coated high-barrier paper is characterized by comprising the following steps:
1) preparing a coating solution with the solid content of 48.5 +/-1 wt% from the Korea acrylic emulsion (RX-20);
2) dissolving organic montmorillonite in distilled water, and performing ultrasonic treatment at 25 ℃ to obtain a uniformly mixed montmorillonite suspension liquid with the concentration of 0.5-5%; weighing polyvinyl alcohol powder, dissolving the polyvinyl alcohol powder in a montmorillonite suspension, swelling the polyvinyl alcohol powder in cold water for 3-5 hours, and heating and dissolving the polyvinyl alcohol powder at 85-95 ℃ for 1-2 hours to prepare a polyvinyl alcohol-montmorillonite PVA-MMT coating solution with the mass percentage concentration of 5-15%, wherein the mass ratio of the organic montmorillonite to the polyvinyl alcohol powder is 0.5-5 g: 5-15 g;
3) heating at 65-75 ℃ to dissolve the beeswax, and preparing a beeswax coating solution with the mass percentage concentration of 95-100%;
4) and sequentially coating the prepared coating solution on the surface of the paper base at 45-55 ℃ to form coatings, and drying the coatings at 50-60 ℃ for 15-30 min to obtain the paper base coating.
2. The method for preparing the degradable coated high-barrier paper according to claim 1, which is characterized in that: and 4) sequentially coating acrylic emulsion, beeswax coating solution, PVA-MMT coating solution and acrylic emulsion.
3. The method for preparing the degradable coated high-barrier paper according to claim 1, which is characterized in that: the coating in the step 4) is an acrylic coating layer, a beeswax coating layer, a polyvinyl alcohol-montmorillonite coating layer and an acrylic coating layer, and the coating weight is 2-10 g, 1-5 g, 2-10 g and 2-10 g respectively.
4. The method for preparing the degradable coated high-barrier paper according to claim 1, which is characterized in that: and 4) the paper base is kraft paper, the A4 breadth is obtained, and the thickness is 65-70 mu m.
5. The degradable coated high barrier paper prepared by the method according to any one of claims 1 to 4.
6. The degradable coated high barrier paper according to claim 5, wherein: the paper base is compounded by a paper base (1) and a coating layer on the surface of the paper base, wherein the coating layer sequentially comprises an acrylic coating layer (2), a beeswax layer (3), a polyvinyl alcohol-montmorillonite coating layer (4) and an acrylic coating layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110924202.5A CN113638267A (en) | 2021-08-12 | 2021-08-12 | Preparation method of degradable coating high-barrier paper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110924202.5A CN113638267A (en) | 2021-08-12 | 2021-08-12 | Preparation method of degradable coating high-barrier paper |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659125A (en) * | 2012-05-10 | 2012-09-12 | 华东师范大学 | Method for preparing montmorillonite nanosheet sol by mechanical chemical method |
| CN102926200A (en) * | 2012-09-25 | 2013-02-13 | 台州学院 | Flame-retardant cotton fiber and preparation method thereof |
| CN104562844A (en) * | 2015-01-08 | 2015-04-29 | 江南大学 | Antibacterial bee wax emulsion as well as preparation method and application thereof |
| CN107318969A (en) * | 2017-05-12 | 2017-11-07 | 华中农业大学 | A kind of preparation method of the coating antistaling agent based on beeswax aqueous dispersion |
| CN109070563A (en) * | 2016-03-28 | 2018-12-21 | 日本制纸株式会社 | Barrier material made of paper |
| CN110205866A (en) * | 2019-05-29 | 2019-09-06 | 盐城工学院 | A method of improving food packaging paper water vapor barrier property can |
| CN209989311U (en) * | 2019-05-29 | 2020-01-24 | 苏州甲腾包装材料科技有限公司 | PET protection film with hinder oxygen performance |
| CN111379189A (en) * | 2018-12-29 | 2020-07-07 | 上海紫丹食品包装印刷有限公司 | Easily-pulped die-cutting high-barrier food coating paperboard and preparation method thereof |
| CN111907178A (en) * | 2020-05-21 | 2020-11-10 | 周锐 | High-barrier environment-friendly degradable coffee capsule cover film and preparation method thereof |
-
2021
- 2021-08-12 CN CN202110924202.5A patent/CN113638267A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659125A (en) * | 2012-05-10 | 2012-09-12 | 华东师范大学 | Method for preparing montmorillonite nanosheet sol by mechanical chemical method |
| CN102926200A (en) * | 2012-09-25 | 2013-02-13 | 台州学院 | Flame-retardant cotton fiber and preparation method thereof |
| CN104562844A (en) * | 2015-01-08 | 2015-04-29 | 江南大学 | Antibacterial bee wax emulsion as well as preparation method and application thereof |
| CN109070563A (en) * | 2016-03-28 | 2018-12-21 | 日本制纸株式会社 | Barrier material made of paper |
| CN107318969A (en) * | 2017-05-12 | 2017-11-07 | 华中农业大学 | A kind of preparation method of the coating antistaling agent based on beeswax aqueous dispersion |
| CN111379189A (en) * | 2018-12-29 | 2020-07-07 | 上海紫丹食品包装印刷有限公司 | Easily-pulped die-cutting high-barrier food coating paperboard and preparation method thereof |
| CN110205866A (en) * | 2019-05-29 | 2019-09-06 | 盐城工学院 | A method of improving food packaging paper water vapor barrier property can |
| CN209989311U (en) * | 2019-05-29 | 2020-01-24 | 苏州甲腾包装材料科技有限公司 | PET protection film with hinder oxygen performance |
| CN111907178A (en) * | 2020-05-21 | 2020-11-10 | 周锐 | High-barrier environment-friendly degradable coffee capsule cover film and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘桂超: "聚乙烯醇基复合材料纳米蒙脱土改性及咸鸭蛋涂膜保鲜包装研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
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Application publication date: 20211112 |