CN113201972B - Plastic-removing food paper and preparation method thereof - Google Patents

Plastic-removing food paper and preparation method thereof Download PDF

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Publication number
CN113201972B
CN113201972B CN202110572142.5A CN202110572142A CN113201972B CN 113201972 B CN113201972 B CN 113201972B CN 202110572142 A CN202110572142 A CN 202110572142A CN 113201972 B CN113201972 B CN 113201972B
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surface sizing
sizing
drying
paper
pulp
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CN113201972A (en
Inventor
刘春景
史梦华
董超
朱宏伟
李丹
乐名菊
谭桂香
银辉
姜云
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Yueyang Paper Co ltd
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Yueyang Paper Co ltd
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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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D21H11/04—Kraft or sulfate pulp
    • 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
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper

Abstract

The invention provides a preparation method of plastic-removed food paper, which comprises the following steps: mixing bleached sulfate softwood chemical pulp and bleached sulfate hardwood chemical pulp, performing thick pulp screening, seasoning, pulp washing, sand and gas removal, sizing, mixing with ASA, and fine screening to obtain pretreated pulp; the pre-treated slurry is prepared by a slurry flowing box, a net part dehydration forming, a squeezing, a first drying, a first surface sizing, a second drying, a second surface sizing, a third drying, a press polish and a coiling; wherein the first surface sizing is as follows: surface sizing is carried out by adopting acrylic emulsion; the second surface sizing is as follows: the surface sizing is carried out with polydimethylsiloxane. According to the invention, ASA sizing and surface sizing are adopted, so that the migration of the sizing liquid in the surface sizing working section to paper can be reduced, and the film forming effect of the subsequent barrier material is ensured; and a barrier layer is formed on the paper surface, so that the paper can obtain primary waterproof, moistureproof and oilproof barrier effects.

Description

Plastic-removing food paper and preparation method thereof
Technical Field
The invention relates to the technical field of paper products, in particular to plastic-removing food paper and a preparation method thereof.
Background
The solution of white pollution of plastics is a major and urgent problem facing all mankind, the replacement of plastics with paper is one of the important ways to solve the problem, with the development of paper making and post-processing technology of paper products, paper products are more and more abundant in function, and paper products which are water-resistant, oil-resistant, heat-resistant, acid-resistant and alkali-resistant and convenient to process are the key points of the research and development of paper products at present. At present, plastic film coated products or all-plastic products are often used for various oil-proof food bags, food pads, cups and saucers in the market and packaged products of dried fruits, tea leaves, jerky and the like, so that white pollution caused by the products is very serious. The daily requirement of the food paper is dozens of thousands of tons. The packaging products for these foods have high requirements on the quality of the packaging materials, especially on the barrier properties of oil resistance, water resistance, moisture resistance and the like.
At present, paper suitable for the purposes is close to the blank at home and abroad, and the development of the plastic-removing food paper has great significance for improving the product grade of enterprises, improving the profitability, promoting the environmental development, leading the industry trend and improving the enterprise image.
Disclosure of Invention
In view of the above, the technical problem to be solved by the invention is to provide the plastic-removed food paper and the preparation method thereof.
The invention provides a preparation method of plastic-removed food paper, which comprises the following steps:
mixing bleached sulfate softwood chemical pulp and bleached sulfate hardwood chemical pulp, performing thick pulp screening, seasoning, pulp washing, sand and gas removal, sizing, mixing with ASA, and fine screening to obtain pretreated pulp;
the pre-treated slurry is prepared by a slurry flowing box, a net part dehydration forming, a squeezing, a first drying, a first surface sizing, a second drying, a second surface sizing, a third drying, a press polish and a coiling;
wherein the first surface sizing is as follows: surface sizing is carried out by adopting acrylic emulsion; the second surface sizing is as follows: the surface sizing is carried out with polydimethylsiloxane.
Preferably, the bleached sulfate softwood chemical pulp accounts for 30-50 wt%; the bleached sulfate hardwood chemical pulp accounts for 50-70 wt%.
Preferably, the addition amount of the ASA is 0.3-1.5 kg/t of the plastic-removed food paper.
Preferably, the first surface sizing Cobb value is 20-30g/m2。
Preferably, the solid content of the acrylic emulsion is 25-40%, and the glue application amount is 4-8 g/m2。
Preferably, the solid content of the polydimethylsiloxane is 5-20%, and the glue application amount is 0.3-0.8 g/m2。
Preferably, the concentration of the slurry after passing through the thick slurry sieve is 3-5 wt%; the concentration of the slurry after the seasoning is 0.7 wt% -1 wt%.
Preferably, the first drying is drying until the moisture content is 5-7%; the second drying step is drying until the moisture content is 5-7%; and the third drying step is drying until the moisture content is 5-7%.
The invention provides plastic-removed food paper which is prepared by the preparation method of any one of the technical schemes.
The invention provides a paper product which is characterized by being prepared from the plastic-removed food paper in the technical scheme.
Compared with the prior art, the invention provides a preparation method of plastic-removed food paper, which comprises the following steps: mixing bleached sulfate softwood chemical pulp and bleached sulfate hardwood chemical pulp, performing thick pulp screening, seasoning, pulp washing, sand and gas removal, sizing, mixing with ASA, and fine screening to obtain pretreated pulp; the pre-treated slurry is prepared by a slurry flowing box, a net part dehydration forming, a squeezing, a first drying, a first surface sizing, a second drying, a second surface sizing, a third drying, a press polish and a coiling; wherein the first surface sizing is as follows: surface sizing is carried out by adopting acrylic emulsion; the second surface sizing is as follows: the surface sizing is carried out with polydimethylsiloxane. The invention adopts an internal curing sizing method (ASA sizing), and can reduce the migration of the sizing liquid in the surface sizing working section to paper when entering the first surface sizing, thereby ensuring the film forming effect of the subsequent barrier material; the first surface sizing adopts acrylic emulsion to carry out surface sizing, forms first barrier layer at the paper face, ensures that the paper obtains preliminary waterproof, dampproofing, grease proofing separation effect. And the second surface sizing adopts polydimethylsiloxane to carry out surface sizing, and a second barrier layer is formed on the paper surface, so that the paper can obtain excellent waterproof, moistureproof and oilproof barrier effects and heat-resistant, acid-alkali-resistant effects.
Detailed Description
The invention provides plastic-removing food paper and a preparation method thereof, and a person skilled in the art can appropriately improve process parameters by referring to the content. It is expressly intended that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the scope of the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The invention provides a preparation method of plastic-removed food paper, which comprises the following steps:
mixing bleached sulfate softwood chemical pulp and bleached sulfate hardwood chemical pulp, performing thick pulp screening, seasoning, pulp washing, sand and gas removal, sizing, mixing with ASA, and fine screening to obtain pretreated pulp;
the pre-treated slurry is prepared by a slurry flowing box, a net part dehydration forming, a squeezing, a first drying, a first surface sizing, a second drying, a second surface sizing, a third drying, a press polish and a coiling;
wherein the first surface sizing is as follows: surface sizing is carried out by adopting acrylic emulsion; the second surface sizing is as follows: the surface sizing is carried out with polydimethylsiloxane.
The preparation method of the plastic-removed food paper provided by the invention is characterized in that firstly, bleached sulfate softwood chemical pulp and bleached sulfate hardwood chemical pulp are mixed.
The sources of the bleached sulfate softwood chemical pulp and the bleached sulfate hardwood chemical pulp are not limited, and the bleached sulfate softwood chemical pulp and the bleached sulfate hardwood chemical pulp can be commercially available or prepared by a conventional method according to the prior art.
In the invention, in the slurry: 30-50 wt% of bleached sulfate softwood chemical pulp; preferably 31 to 48 wt%; more preferably 31 to 46 wt%; the bleached sulfate hardwood chemical pulp accounts for 50-70 wt%; preferably 55 to 69 wt%.
The invention relates to a method for blending bleached sulfate softwood chemical pulp (NBKP) and bleached sulfate hardwood chemical pulp (LBKP) as fiber raw materials.
Mixing and screening by a thick slurry screen; the pore size of the screen is not limited in the present invention and is well known to those skilled in the art.
The concentration of the slurry after passing through the thick slurry sieve is 3-5 wt%.
The thick slurry is screened to obtain the seasoning, and the specific operation of the seasoning is not limited in the invention and can be realized by the method well known by the technical personnel in the field. In particular to a seasoning mixed with water.
The concentration of the seasoned slurry is preferably 0.7 to 1 wt%.
The pulp is washed after the seasoning; the invention adopts a fan pump to carry out the slurry flushing. The specification parameters of the slurry pump are not limited in the invention, and the specification parameters are well known to those skilled in the art.
Desanding and degassing are carried out after the slurry flushing. The present invention is not limited to the specific operations for sand and gas removal, and those skilled in the art will be familiar with the present invention.
After sand removal and degassing, sizing; the sizing is performed by a sizing pump, and the specification parameters of the sizing pump are not limited in the invention and can be known by those skilled in the art.
And after sizing, mixing the obtained product with ASA and fine screening to obtain pretreated slurry.
The addition amount of the ASA is preferably 0.3-1.5 kg/t of plastic-removed food paper; more preferably 0.5-1.3 kg/t plastic-removed food paper; most preferably 0.36-1.3 kg/t plastic-removed food paper.
The invention adopts ASA sizing to reduce the migration of the sizing liquid in the surface sizing workshop section to paper and ensure the film forming effect.
The fine screen is a paper machine screen; the pore size of the fine screen is not limited in the present invention, and those skilled in the art are familiar with the fine screen.
The above is the internet access system.
Then the pretreated slurry is dehydrated, formed and squeezed through a slurry flowing box and a net part. The specific parameters of the dehydration forming of the invention are preferably as follows: the net part is formed by overlapping nets, the pulp-net speed ratio is 1.020-1.040, the dewatering proportion of the top net is 20-30%, the vacuum degree of a vacuum box of the top net is-0.1-0.4 KPa, the pressure of a loading scraper of the bottom net is 3-15 MPa, the concentration of white water is 0.1-0.3%, and the first-pass retention rate of the net part is 75-85%.
The present invention is not limited to the particular operation and parameters of pressing, as will be appreciated by those skilled in the art.
First drying after squeezing; the first drying is drying until the moisture content is 5-7%.
The first drying of the invention is followed by the first surface sizing.
The first surface sizing of the invention is as follows: surface sizing is carried out by adopting acrylic emulsion;
the solid content of the acrylic emulsion is preferably 25-40%, more preferably 28-39%, and most preferably 30-38%; the glue application amount is preferably 4-8 g/m2(ii) a More preferably 4.5 to 7.5g/m2(ii) a Most preferably 5 to 7g/m2；
The first surface sizing Cobb value is preferably 20-30g/m2。
According to the invention, the acrylic emulsion is adopted for surface sizing in the first step, and the primary waterproof, moistureproof and oilproof barrier effects of the paper can be ensured by controlling the sizing amount.
And then carrying out secondary drying and secondary surface sizing.
The specific manner of drying is not limited, and the second drying is drying until the moisture content is 5-7%.
The second surface sizing of the invention is: the surface sizing is carried out with polydimethylsiloxane.
The polydimethylsiloxane provided by the invention has the solid content of preferably 5-20%, more preferably 6-18%, most preferably 7-16%, and the glue application amount of 0.3-0.8 g/m2(ii) a More preferably 0.4 to 0.8g/m2。
The invention uses polydimethylsiloxane for surface sizing, and controls the sizing amount to ensure that paper obtains excellent waterproof, damp-proof and oil-proof barrier effects and heat-resistant and acid-alkali-resistant effects.
And then the product is prepared by third drying, press polishing and coiling.
The third drying step is drying until the moisture content is 5-7%.
The invention provides plastic-removed food paper which is prepared by the preparation method of any one of the technical schemes.
The invention provides a paper product which is characterized by being prepared from the plastic-removed food paper in the technical scheme.
The product belongs to a fluorine-free product, can be used for making various oil-proof food bags (including dried fruits, tea leaves, dried meat and the like), food pads, cups, sauce cups, windmill cups (for making pineapple bags), various dried meat floss bread cups, various rolling cups (cake cups, water cups, trial cups, ice cream cups, egg tart cups, tomato sauce cups, pudding cups, mafens cups and the like), pizza pads, oil-proof pads and the like, and has strong paper adaptability and wide application. The product is a revolutionary product, is used for replacing some plastic products and PE or PE + PET laminating paper products, and has wide market prospect.
The invention has the following beneficial effects:
(1) the invention adopts an internal curing sizing mode (ASA sizing), and when the surface sizing is carried out in the first pass, the sizing Cobb value can be controlled to be 20-30g/m2Thereby reducing the migration of the glue application liquid in the surface glue application working section to paper and ensuring the film forming effect of the subsequent barrier material;
(2) the first surface sizing adopts acrylic emulsion to carry out surface sizing, forms first barrier layer at the paper face, ensures that the paper obtains preliminary waterproof, dampproofing, grease proofing separation effect.
(3) And the second surface sizing adopts polydimethylsiloxane to carry out surface sizing, and a second barrier layer is formed on the paper surface, so that the paper can obtain excellent waterproof, moistureproof and oilproof barrier effects and heat-resistant, acid-alkali-resistant effects.
(4) The invention can be used for continuous automatic cup making, and can save at least half of labor force for post-processing (the continuous automatic cup making can not be realized due to the warping problem of the laminating paper).
(5) The food cup made of the laminated paper has 15-20% of paper loss, cannot be recycled in takeaway, and even needs to be treated with money, while the paper loss can be recycled in takeaway by using the product of the invention.
(6) The product of the invention does not need to be coated, and can be directly die-cut in post processing, thereby saving one process cost.
In order to further illustrate the present invention, the following will describe in detail a plastic-removed food paper and a preparation method thereof provided by the present invention with reference to examples.
Example 1
The pulp is prepared from bleached sulfate softwood chemical pulp (NBKP) and bleached sulfate hardwood chemical pulp (LBKP). The weight ratio of the sizing agent is as follows: NBKP 35%; LBKP 65%. ASA sizing is adopted, the dosage of ASA is 0.8kg/t of paper, and the addition point is the inlet of a paper machine screen. The first surface sizing adopts acrylic emulsion to carry out surface sizing, the solid content of the acrylic emulsion is 30 percent, and the sizing amount is controlled to be 5g/m2. The second surface sizing adopts polydimethylsiloxane for surface sizing, the solid content of the polydimethylsiloxane is 9 percent, and the sizing amount is controlled to be 0.6g/m2。
After the two kinds of pulp are mixed, the mixed pulp is blended into 3.0 percent of concentration, and the 100g/m2 plastic-removed food paper is prepared by thick pulp screening, seasoning, pulp washing, sand and gas removal, sizing, fine screening, net part dehydration forming, squeezing, first drying, first surface sizing, second drying, second surface sizing, third drying, press polishing and reeling.
The specific parameters of the dehydration molding are as follows: the net part is formed by overlapping nets, the pulp-net speed ratio is 1.030, the top net dehydration proportion is 25%, the vacuum degree of a top net vacuum box is-0.2 KPa, the pressure of a bottom net loading scraper is 5MPa, the concentration of white water is 0.2%, and the first pass retention rate of the net part is 80%.
The first drying is drying until the moisture content is 5-7%; the Cobb value of the first surface sizing is 20-30g/m2(ii) a The second drying step is drying until the moisture content is 5-7%; and the third drying step is drying until the moisture content is 5-7%.
Example 2
The pulp is prepared from bleached sulfate softwood chemical pulp (NBKP) and bleached sulfate hardwood chemical pulp (LBKP). The weight ratio of the sizing agent is as follows: NBKP 31%; LBKP 69%. ASA sizing is adopted, the dosage of ASA is 1.1kg/t of paper, and the addition point is the inlet of a paper machine screen. The first surface sizing is carried out by adopting acrylic emulsion, the solid content of the acrylic emulsion is 35 percent, and the sizing amount is controlled to be 5.5g/m 2. The second surface sizing adopts polydimethylsiloxane for surface sizing, the solid content of the polydimethylsiloxane is 8 percent, and the sizing amount is controlled to be 0.5g/m2。
Mixing the above two slurries, blending to obtain slurry with concentration of 2.9%, sieving with thick slurry sieve, flavoring, flushing, removing sand and gas, sizing, fine sieving, dewatering and forming mesh, squeezing, drying, applying glue to the first surface, drying, applying glue to the second surface, drying, press polishing, and coiling to obtain the final product with a concentration of 90g/m2And (5) removing plastic food paper.
The specific parameters are the same as in example 1.
Example 3
The pulp is prepared from bleached sulfate softwood chemical pulp (NBKP) and bleached sulfate hardwood chemical pulp (LBKP). The weight ratio of the sizing agent is as follows: NBKP 45%; LBKP 55%. ASA sizing is adopted, the dosage of ASA is 1.3kg/t of paper, and the addition point is the inlet of a paper machine screen. The first surface sizing adopts acrylic emulsion to carry out surface sizing, the solid content of the acrylic emulsion is 38%, and the sizing amount is controlled to be 6.2g/m 2. The second surface sizing adopts polydimethylsiloxane for surface sizing, the solid content of the polydimethylsiloxane is 12 percent, and the sizing amount is controlled to be 0.8g/m2。
Mixing the above two slurries, blending to obtain slurry with concentration of 3.1%, sieving, adding flavoring, washing, removing sand and removing sandAir-blowing, sizing, fine screening, net part dehydration forming, squeezing, first drying, first surface sizing, second drying, second surface sizing, third drying, press polishing and coiling to obtain 80g/m2And (5) removing plastic food paper. The specific parameters are the same as in example 1.
The results of the above three product quality tests are shown in table 1:
TABLE 1
Figure BDA0003082958550000071
The detection shows that the product meets the national hygienic standard for using additives for food containers and packaging materials.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A preparation method of plastic-removed food paper is characterized by comprising the following steps:
mixing bleached sulfate softwood chemical pulp and bleached sulfate hardwood chemical pulp, performing thick pulp screening, seasoning, pulp washing, sand and gas removal, sizing, mixing with ASA, and fine screening to obtain pretreated pulp;
the pre-treated slurry is prepared by a slurry flowing box, a net part dehydration forming, a squeezing, a first drying, a first surface sizing, a second drying, a second surface sizing, a third drying, a press polish and a coiling; the first surface sizing Cobb value is 20-30g/m2；
Wherein the first surface sizing is as follows: surface sizing is carried out by adopting acrylic emulsion; the solid content of the acrylic emulsion is 25-40%, and the glue application amount is 4-8 g/m2；
The second surface sizing is as follows: surface sizing is carried out by adopting polydimethylsiloxane; the solid content of the polydimethylsiloxane is 5-20%, and the glue application amount is 0.3-0.8 g/m2。
2. The method according to claim 1, wherein the bleached sulfate softwood chemical pulp is 30-50 wt%; the bleached sulfate hardwood chemical pulp accounts for 50-70 wt%.
3. The preparation method of claim 1, wherein the ASA is added in an amount of 0.3-1.5 kg/t of the de-molded food paper.
4. The preparation method according to claim 1, wherein the post-dense slurry concentration is 3 wt% to 5 wt%; the concentration of the slurry after the seasoning is 0.7 wt% -1 wt%.
5. The preparation method according to claim 1, wherein the first drying is drying until the moisture content is 5-7%; the second drying step is drying until the moisture content is 5-7%; and the third drying step is drying until the moisture content is 5-7%.
6. A plastic-removed food paper, which is prepared by the preparation method of any one of claims 1 to 5.
7. A paper product made from the plastic-removed food paper of claim 6.
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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114481674A (en) * 2022-02-23 2022-05-13 张凤君 Production process of plastic-replacing paper
CN114622441A (en) * 2022-03-28 2022-06-14 日照华泰纸业有限公司 Plastic-free waterproof packaging paper
CN115506174A (en) * 2022-09-23 2022-12-23 岳阳林纸股份有限公司 Plastic-free paper-based packaging material with high oxygen barrier rate and preparation method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5215626A (en) * 1991-07-19 1993-06-01 The Procter & Gamble Company Process for applying a polysiloxane to tissue paper
CN102505572A (en) * 2011-11-03 2012-06-20 岳阳林纸股份有限公司 Method for producing noodle packing paper
CN109487626A (en) * 2018-12-25 2019-03-19 浙江恒达新材料股份有限公司 A kind of high waterproof suction pipe lining paper and preparation method thereof
CN109881519A (en) * 2019-03-21 2019-06-14 岳阳林纸股份有限公司 A kind of preparation process baking body paper
CN109914143A (en) * 2019-03-25 2019-06-21 浙江恒川新材料有限公司 A kind of Flexible sucker lining paper and preparation method thereof
CN110318302A (en) * 2019-05-31 2019-10-11 岳阳林纸股份有限公司 A kind of manufacturing method of straw paper
CN111636247A (en) * 2020-04-21 2020-09-08 仙鹤股份有限公司 Preparation method of white waterproof and oilproof paper

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1083004A (en) * 1963-10-30 1967-09-13 Union Carbide Corp Sized paper and method therefor
WO2005042843A1 (en) * 2003-10-24 2005-05-12 National Gypsum Properties, Llc Process for making abrasion resistant paper and paper and paper products made by the process
US9732474B2 (en) * 2015-05-29 2017-08-15 International Paper Company Hydrophobic coated paper substrate for polymer emulsion topcoats and method for making same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5215626A (en) * 1991-07-19 1993-06-01 The Procter & Gamble Company Process for applying a polysiloxane to tissue paper
CN102505572A (en) * 2011-11-03 2012-06-20 岳阳林纸股份有限公司 Method for producing noodle packing paper
CN109487626A (en) * 2018-12-25 2019-03-19 浙江恒达新材料股份有限公司 A kind of high waterproof suction pipe lining paper and preparation method thereof
CN109881519A (en) * 2019-03-21 2019-06-14 岳阳林纸股份有限公司 A kind of preparation process baking body paper
CN109914143A (en) * 2019-03-25 2019-06-21 浙江恒川新材料有限公司 A kind of Flexible sucker lining paper and preparation method thereof
CN110318302A (en) * 2019-05-31 2019-10-11 岳阳林纸股份有限公司 A kind of manufacturing method of straw paper
CN111636247A (en) * 2020-04-21 2020-09-08 仙鹤股份有限公司 Preparation method of white waterproof and oilproof paper

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