CN112647355A - Preparation method of waterproof paper product packaging material - Google Patents
Preparation method of waterproof paper product packaging material Download PDFInfo
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- CN112647355A CN112647355A CN202010881563.1A CN202010881563A CN112647355A CN 112647355 A CN112647355 A CN 112647355A CN 202010881563 A CN202010881563 A CN 202010881563A CN 112647355 A CN112647355 A CN 112647355A
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- China
- Prior art keywords
- paper
- treatment
- temperature
- membrane
- packaging material
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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
- D21H27/10—Packing paper
-
- 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
- B65D65/42—Applications of coated or impregnated 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
-
- 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/24—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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/26—Polyamides; Polyimides
-
- 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
-
- 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
- D21H19/16—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising curable or polymerisable 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
- D21H19/10—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
- 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
- D21H21/14—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 function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- 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
- B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D2565/38—Packaging materials of special type or form
- B65D2565/381—Details of packaging materials of special type or form
- B65D2565/382—Details of packaging materials of special type or form made of special paper
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a preparation method of a waterproof paper product packaging material, and relates to the field of packaging paper preparation. The preparation method of the waterproof paper product packaging material comprises the steps of base paper manufacturing, laminating liquid manufacturing, laminating treatment, drying treatment, curing treatment, hot rolling treatment, cooling and edge cutting. Through adding plastic fiber in paper pulp, the intensity of effectual improvement paper, paper drenches in the immersion water simultaneously, compares in not adding plastic fiber's paper, and the intensity loss of its paper is littleer to and drench the membrane and handle the back, adopt the mode of hot-roll melt-pressing, make plastic fiber and drench the membrane melt and combine together, improved the paper and drench the joint strength between the membrane.
Description
Technical Field
The invention relates to the technical field of packaging paper preparation, in particular to a preparation method of a waterproof paper product packaging material.
Background
The packaging paper has high strength, low water content, small air permeability, no corrosion, certain water resistance and beautiful appearance. The existing waterproof packing paper is mostly made of laminating paper. The laminated paper is a composite material with plastic particles coated on the surface of paper by a casting machine, and is mainly characterized in that the composite material can resist oil (relatively), resist water (relatively) and can be thermally sealed.
The base paper of the existing laminating paper adopts the adopted paper, and the manufactured laminating paper has low strength and is easy to damage, especially after the base paper is wetted. Meanwhile, the peeling force of the laminated film separated from the base paper is also a factor for measuring the quality of the laminated film paper. If the laminated film is separated in the packaging and transportation process of the laminated paper, the waterproof protection capability is not provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a preparation method of a waterproof paper product packaging material, which solves the problem of low strength of the existing waterproof paper for packaging.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a preparation method of a waterproof paper product packaging material comprises the following steps:
sp 1: making of base paper
The plastic fiber is added into the paper pulp prepared by the prior art, and the ratio of the paper pulp fiber to the plastic fiber is 10: 1, after fully mixing, preparing paper by adopting the prior art, and rolling the paper without drying for later use;
sp 2: preparation of film spraying liquid
2.1: formaldehyde, acrylic acid hydroxyl ester and 2-methoxy hydroquinone are adopted, and the proportion of the formaldehyde, the acrylic acid hydroxyl ester and the 2-methoxy hydroquinone is 10: 40-80: 0.01-0.05, heating to 80-90 ℃ after fully mixing, lasting for 2-3 hours, and naturally cooling to obtain a membrane spraying liquid I;
2.2: adding polyester diol and diisocyanate into the membrane pouring liquid I and fully mixing, wherein the ratio of the polyester diol to the diisocyanate is 1: 1-3, obtaining a membrane spraying liquid II;
2.3: adding plastic powder into the membrane leaching solution II, and fully mixing, wherein the adding amount of the plastic powder is 5-15% of that of the membrane leaching solution II, so as to obtain a membrane leaching solution III;
sp 3: laminating treatment
Preheating the paper in the Sp1 to 60-80 ℃, and then spraying by using a film spraying liquid III, wherein the using amount of the film spraying liquid III is 15-30 g per square meter of the paper;
sp 4: drying treatment
Placing the paper sprayed in Sp3 in a dark space, and drying at 50-80 ℃;
sp 5: curing treatment
Sending the dried Sp4 paper to an ultraviolet curing chamber to enable cross-linked substances in the film spraying liquid to be cross-linked and cured;
sp 6: hot rolling treatment
Carrying out three-stage hot rolling treatment on the paper subjected to the Sp4 solidification treatment, wherein the primary treatment is preheating treatment at the temperature of 120-150 ℃, the secondary treatment is hot melting treatment at the temperature of 180-250 ℃, and the tertiary treatment is cooling treatment, so that the temperature of the paper is reduced to 100-120 ℃;
sp 7: cooling trimming
And (3) cooling the paper subjected to Sp6 hot rolling again in an air cooling mode, and cutting the edge of the paper after the temperature is lower than 40 ℃, wherein the cutting width is 2-4 cm.
Preferably, the plastic fiber in the Sp1 is one or more of polypropylene, polycarbonate and nylon, the length of the plastic fiber is less than 0.5cm, and the maximum diameter of the plastic fiber is less than 1.5 times of that of pulp fiber.
Preferably, the 2-methoxy hydroquinone in the Sp2.1 can be replaced by p-hydroxyanisole or tert-butyl hydroquinone, and the mixture ratio is not changed.
Preferably, the added plastic powder in the Sp2.3 is one or more of polypropylene, polycarbonate and nylon, and the particle diameter of the plastic powder is less than 0.8 mm.
Preferably, the temperature of the preheating treatment and the temperature of the hot melting treatment in the Sp4 are both the temperature of a hot roller, and the temperature of the cooling treatment is the temperature of paper.
(III) advantageous effects
The invention provides a preparation method of a waterproof paper product packaging material. The method has the following beneficial effects:
1. according to the invention, the plastic fiber is added into the paper pulp, so that the strength of the paper is effectively improved, and meanwhile, the paper is wetted by being immersed in water, so that the strength loss of the paper is smaller compared with the paper without the plastic fiber.
2. According to the invention, after the laminating treatment, the plastic fiber and the laminating film are combined together in a melting way by adopting a hot roller melting and pressing way, so that the bonding strength between the paper and the laminating film is improved, and the laminating film and the base paper are difficult to separate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the embodiment of the invention provides a preparation method of a waterproof paper product packaging material, which comprises the following steps:
sp 1: making of base paper
The plastic fiber is added into the paper pulp prepared by the prior art, and the ratio of the paper pulp fiber to the plastic fiber is 10: 1, after fully mixing, preparing paper by adopting the prior art, rolling the paper without drying for later use, and mixing plastic fibers into the paper to improve the strength of the device;
sp 2: preparation of film spraying liquid
2.1: formaldehyde, acrylic acid hydroxyl ester and 2-methoxy hydroquinone are adopted, and the proportion of the formaldehyde, the acrylic acid hydroxyl ester and the 2-methoxy hydroquinone is 10: 45: 0.03, fully mixing, heating to 80-90 ℃, continuing for 3 hours, and naturally cooling to obtain a laminating liquid I, wherein the laminating liquid I is a cured resin system and is solidified under the irradiation of ultraviolet rays;
2.2: adding polyester diol and diisocyanate into the membrane-pouring liquid I and fully mixing, wherein the polyester diol and the diisocyanate are added to form a cured resin system, and the ratio of the polyester diol to the diisocyanate is 1: 1.5, obtaining a membrane leaching solution II;
2.3: adding plastic powder into the membrane spraying liquid II, and fully mixing, wherein the adding amount of the plastic powder is 10% of that of the membrane spraying liquid II, so as to obtain a membrane spraying liquid III;
sp 3: laminating treatment
Preheating paper in Sp1 to 60-80 ℃, and then carrying out spraying treatment by using a film spraying liquid III, wherein the using amount of the film spraying liquid III is 15g per square meter of the paper;
sp 4: drying treatment
Placing the paper sprayed with the Sp3 in a dark space, drying at 50-80 ℃, and not drying the paper to form a film, so that the film coating liquid III can soak the paper and permeate into the paper;
sp 5: curing treatment
Sending the dried Sp4 paper to an ultraviolet curing chamber to enable cross-linked substances in the film spraying liquid to be cross-linked and cured;
sp 6: hot rolling treatment
Carrying out three-stage hot rolling treatment on the paper subjected to the Sp4 solidification treatment, wherein the primary hot rolling treatment is preheating treatment at the temperature of 130 ℃, the secondary hot melting treatment is hot melting treatment at the temperature of 200 ℃, and the tertiary cooling treatment is cooling treatment to reduce the temperature of the paper to 100 ℃, and the hot rolling treatment is to melt the plastic fibers in the paper and the plastic powder and the solidified plastic in the film spraying liquid so as to be melted in a molten state and form a whole after cooling;
sp 7: cooling trimming
And (3) cooling the paper subjected to Sp6 hot rolling again in an air cooling mode, and cutting the edge of the paper after the temperature is lower than 40 ℃, wherein the cutting width is 2-4 cm.
The plastic fiber in the Sp1 is one or more of polypropylene, polycarbonate and nylon, the length of the plastic fiber is less than 0.5cm, and the maximum diameter of the plastic fiber is less than 1.5 times of that of pulp fiber.
The 2-methoxy hydroquinone in the Sp2.1 can be replaced by p-hydroxyanisole or tert-butyl hydroquinone, and the mixture ratio is unchanged.
The added plastic powder in the Sp2.3 is one or more of polypropylene, polycarbonate and nylon, and the particle diameter of the plastic powder is less than 0.8 mm.
The temperature of the preheating treatment and the temperature of the hot melting treatment in the Sp4 are both the temperature of the hot roller, and the temperature of the cooling treatment is the temperature of the paper.
Example two:
the embodiment of the invention provides a preparation method of a waterproof paper product packaging material, which comprises the following steps:
sp 1: making of base paper
The plastic fiber is added into the paper pulp prepared by the prior art, and the ratio of the paper pulp fiber to the plastic fiber is 10: 1, after fully mixing, preparing paper by adopting the prior art, rolling the paper without drying for later use, and mixing plastic fibers into the paper to improve the strength of the device;
sp 2: preparation of film spraying liquid
2.1: formaldehyde, acrylic acid hydroxyl ester and 2-methoxy hydroquinone are adopted, and the proportion of the formaldehyde, the acrylic acid hydroxyl ester and the 2-methoxy hydroquinone is 10: 50: 0.04, fully mixing, heating to 80-90 ℃, keeping the temperature for 2 hours, naturally cooling to obtain a laminating liquid I, wherein the laminating liquid I is a cured resin system and is solidified under the irradiation of ultraviolet rays;
2.2: adding polyester diol and diisocyanate into the membrane-pouring liquid I and fully mixing, wherein the polyester diol and the diisocyanate are added to form a cured resin system, and the ratio of the polyester diol to the diisocyanate is 1: 1, obtaining a membrane leaching solution II;
2.3: adding plastic powder into the membrane leaching solution II, and fully mixing, wherein the adding amount of the plastic powder is 12% of that of the membrane leaching solution II, so as to obtain a membrane leaching solution III;
sp 3: laminating treatment
Preheating paper in Sp1 to 60-80 ℃, and then carrying out spraying treatment by using a film spraying liquid III, wherein the using amount of the film spraying liquid III is 30g per square meter of the paper;
sp 4: drying treatment
Placing the paper sprayed with the Sp3 in a dark space, drying at 50-80 ℃, and not drying the paper to form a film, so that the film coating liquid III can soak the paper and permeate into the paper;
sp 5: curing treatment
Sending the dried Sp4 paper to an ultraviolet curing chamber to enable cross-linked substances in the film spraying liquid to be cross-linked and cured;
sp 6: hot rolling treatment
Carrying out three-stage hot rolling treatment on the paper subjected to the Sp4 solidification treatment, wherein the primary hot rolling treatment is preheating treatment at the temperature of 120 ℃, the secondary hot melting treatment at the temperature of 240 ℃ and the tertiary cooling treatment are cooling treatment to reduce the temperature of the paper to 100 ℃, and the hot rolling treatment is to melt the plastic fibers in the paper and the plastic powder and the solidified plastic in the film spraying liquid so as to be melted in a molten state and form a whole after cooling;
sp 7: cooling trimming
And (3) cooling the paper subjected to Sp6 hot rolling again in an air cooling mode, and cutting the edge of the paper after the temperature is lower than 40 ℃, wherein the cutting width is 2-4 cm.
The plastic fiber in the Sp1 is one or more of polypropylene, polycarbonate and nylon, the length of the plastic fiber is less than 0.5cm, and the maximum diameter of the plastic fiber is less than 1.5 times of that of pulp fiber.
The 2-methoxy hydroquinone in the Sp2.1 can be replaced by p-hydroxyanisole or tert-butyl hydroquinone, and the mixture ratio is unchanged.
The added plastic powder in the Sp2.3 is one or more of polypropylene, polycarbonate and nylon, and the particle diameter of the plastic powder is less than 0.8 mm.
The temperature of the preheating treatment and the temperature of the hot melting treatment in the Sp4 are both the temperature of the hot roller, and the temperature of the cooling treatment is the temperature of the paper.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The preparation method of the waterproof paper product packaging material is characterized by comprising the following steps of:
sp 1: making of base paper
The plastic fiber is added into the paper pulp prepared by the prior art, and the ratio of the paper pulp fiber to the plastic fiber is 10: 1, after fully mixing, preparing paper by adopting the prior art, and rolling the paper without drying for later use;
sp 2: preparation of film spraying liquid
2.1: formaldehyde, acrylic acid hydroxyl ester and 2-methoxy hydroquinone are adopted, and the proportion of the formaldehyde, the acrylic acid hydroxyl ester and the 2-methoxy hydroquinone is 10: 40-80: 0.01-0.05, heating to 80-90 ℃ after fully mixing, lasting for 2-3 hours, and naturally cooling to obtain a membrane spraying liquid I;
2.2: adding polyester diol and diisocyanate into the membrane pouring liquid I and fully mixing, wherein the ratio of the polyester diol to the diisocyanate is 1: 1-3, obtaining a membrane spraying liquid II;
2.3: adding plastic powder into the membrane leaching solution II, and fully mixing, wherein the adding amount of the plastic powder is 5-15% of that of the membrane leaching solution II, so as to obtain a membrane leaching solution III;
sp 3: laminating treatment
Preheating the paper in the Sp1 to 60-80 ℃, and then spraying by using a film spraying liquid III, wherein the using amount of the film spraying liquid III is 15-30 g per square meter of the paper;
sp 4: drying treatment
Placing the paper sprayed in Sp3 in a dark space, and drying at 50-80 ℃;
sp 5: curing treatment
Sending the dried Sp4 paper to an ultraviolet curing chamber to enable cross-linked substances in the film spraying liquid to be cross-linked and cured;
sp 6: hot rolling treatment
Carrying out three-stage hot rolling treatment on the paper subjected to the Sp4 solidification treatment, wherein the primary treatment is preheating treatment at the temperature of 120-150 ℃, the secondary treatment is hot melting treatment at the temperature of 180-250 ℃, and the tertiary treatment is cooling treatment, so that the temperature of the paper is reduced to 100-120 ℃;
sp 7: cooling trimming
And (3) cooling the paper subjected to Sp6 hot rolling again in an air cooling mode, and cutting the edge of the paper after the temperature is lower than 40 ℃, wherein the cutting width is 2-4 cm.
2. The method of making a waterproof paper product packaging material of claim 1, wherein: the plastic fiber in the Sp1 is one or more of polypropylene, polycarbonate and nylon, the length of the plastic fiber is less than 0.5cm, and the maximum diameter of the plastic fiber is less than 1.5 times of that of pulp fiber.
3. The method of making a waterproof paper product packaging material of claim 1, wherein: the 2-methoxy hydroquinone in the Sp2.1 can be replaced by p-hydroxyanisole or tert-butyl hydroquinone, and the mixture ratio is unchanged.
4. The method of making a waterproof paper product packaging material of claim 1, wherein: the added plastic powder in the Sp2.3 is one or more of polypropylene, polycarbonate and nylon, and the particle diameter of the plastic powder is less than 0.8 mm.
5. The method of making a waterproof paper product packaging material of claim 1, wherein: the temperature of the preheating treatment and the temperature of the hot melting treatment in the Sp4 are both the temperature of the hot roller, and the temperature of the cooling treatment is the temperature of the paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010881563.1A CN112647355B (en) | 2020-08-27 | 2020-08-27 | Preparation method of waterproof paper product packaging material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010881563.1A CN112647355B (en) | 2020-08-27 | 2020-08-27 | Preparation method of waterproof paper product packaging material |
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| CN112647355A true CN112647355A (en) | 2021-04-13 |
| CN112647355B CN112647355B (en) | 2022-07-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022066219A1 (en) * | 2020-09-28 | 2022-03-31 | C3 Corporation | Paper wrapping materials and method for a highly compressed product |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993000476A1 (en) * | 1991-06-20 | 1993-01-07 | Jujo Paper Co., Ltd. | Packaging material and methods of manufacturing and disposing of said material |
| WO2006089465A1 (en) * | 2005-02-25 | 2006-08-31 | Chang Sha City Kai Li Packaging Material Ltd. | Tissue paper with water repellency and method for manufacture thereof |
| CN102146642A (en) * | 2010-02-04 | 2011-08-10 | 高冠企业股份有限公司 | Laminated paper manufacturing method |
| CN108086055A (en) * | 2017-12-18 | 2018-05-29 | 温州市新丰装饰材料有限公司 | A kind of lamination release paper manufacture craft with wear-resisting property |
| CN110396867A (en) * | 2019-06-12 | 2019-11-01 | 刘雄 | A kind of preparation method of food packaging leaching membrane paper |
-
2020
- 2020-08-27 CN CN202010881563.1A patent/CN112647355B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993000476A1 (en) * | 1991-06-20 | 1993-01-07 | Jujo Paper Co., Ltd. | Packaging material and methods of manufacturing and disposing of said material |
| EP0549803A1 (en) * | 1991-06-20 | 1993-07-07 | Nippon Paper Industries Co., Ltd. | Packaging material and methods of manufacturing and disposing of said material |
| WO2006089465A1 (en) * | 2005-02-25 | 2006-08-31 | Chang Sha City Kai Li Packaging Material Ltd. | Tissue paper with water repellency and method for manufacture thereof |
| CN102146642A (en) * | 2010-02-04 | 2011-08-10 | 高冠企业股份有限公司 | Laminated paper manufacturing method |
| CN108086055A (en) * | 2017-12-18 | 2018-05-29 | 温州市新丰装饰材料有限公司 | A kind of lamination release paper manufacture craft with wear-resisting property |
| CN110396867A (en) * | 2019-06-12 | 2019-11-01 | 刘雄 | A kind of preparation method of food packaging leaching membrane paper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022066219A1 (en) * | 2020-09-28 | 2022-03-31 | C3 Corporation | Paper wrapping materials and method for a highly compressed product |
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| Publication number | Publication date |
|---|---|
| CN112647355B (en) | 2022-07-26 |
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