CN110331622A - A kind of manufacturing method of the antifreeze brown paper of waterproof - Google Patents
A kind of manufacturing method of the antifreeze brown paper of waterproof Download PDFInfo
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- CN110331622A CN110331622A CN201910435261.9A CN201910435261A CN110331622A CN 110331622 A CN110331622 A CN 110331622A CN 201910435261 A CN201910435261 A CN 201910435261A CN 110331622 A CN110331622 A CN 110331622A
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- Prior art keywords
- paper
- antifreeze
- waterproof
- sizing
- brown paper
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- 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
- 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
- D21H19/18—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- 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
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
-
- 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
-
- 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
- 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
- D21H21/18—Reinforcing 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
- 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
- D21H21/18—Reinforcing agents
- D21H21/20—Wet strength 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of manufacturing methods of the antifreeze brown paper of waterproof, including Softwood salt natural color pulp is manufactured paper with pulp through mashing, ingredient, l Water Paper page, preceding drying, top sizing, after the processing steps such as dry.The object of the present invention is to provide a kind of manufacturing methods of the antifreeze brown paper of waterproof, obtained product tensile strength is good, damage resistibility can be brilliant, the antifreeze significant effect of waterproof, it can satisfy fresh cold chain food packaging requirement, it thoroughly solves the non-watertight not antifreeze technical problem of existing brown paper, brings great economic benefit for enterprise, improve enterprise competitiveness.
Description
Technical field
The present invention relates to pulp technology for making paper, the manufacturing method of specially a kind of antifreeze brown paper of waterproof.
Background technique
It is raw material that Softwood salt natural color pulp, which is usually used, in brown paper, manufacture paper with pulp on fourdrinier machine after beating and
At it is strong but pliable in texture, intensity is high, paper be in filemot wrapping paper.It is quantitatively usually 60-120g/m2.Brown paper quality requirement
Be it is flexible solid, have very high tensile strength, tearing strength, bursting strength, can be used as cement bag paper, sack kraft paper, documents pouch paper,
Food wrapper etc..Can be divided into according to the difference of color: unbleached kraft paper, red brown paper, white brown paper, zero diopter brown paper,
Monochromatic light brown paper, double-colored brown paper etc.；It can be divided into according to the difference of purposes: packaging brown paper, pitched kraft paper, antirust ox-hide
Paper plays version brown paper, processing procedure brown paper, insulation kraft liner, ox-hide paster etc.；It can be divided into according to the difference of material: regeneration ox
Mulberry paper, ox-hide core paper, ox-hide body paper, asperities brown paper, ox-hide Waxpaper, wood pulp brown paper, composite kraft paper etc..
Flourishing with electric business in recent years, the demand of fresh cold chain food packaging steeply rises.Country props up energetically
The development in Cold Chain Logistics market is held, proposes to push Cold Chain Logistics industry healthy development, ensures fresh agricultural products and food consumption peace
Entirely, and the modern Cold Chain Logistics system of one " full chain, networking, tight standard, traceable, new model, high efficiency " is constructed.Mesh
Before, conventional kraft paper is not due to having the antifreeze function of waterproof, it is difficult to meet fresh cold chain food packaging requirement, conventional kraft paper
When being used for fresh cold chain food packaging, phenomena such as generating leak, breakage, bursting by freezing, therefore, our company independent development is simultaneously had developed
The antifreeze brown paper of waterproof.
Summary of the invention
The purpose of the present invention is in view of the above problems, providing a kind of manufacturing method of antifreeze brown paper of waterproof, product resists
Zhang Qiangdu is good, and damage resistibility can be brilliant, and the antifreeze significant effect of waterproof can satisfy fresh cold chain food packaging requirement, thoroughly solves
The non-watertight not antifreeze technical problem of existing brown paper of having determined brings great economic benefit for enterprise, improves competition among enterprises
Power.
In order to achieve the above object, the technical solution adopted by the present invention is that: a kind of manufacturing method of the antifreeze brown paper of waterproof, packet
Include Softwood salt natural color pulp is manufactured paper with pulp through mashing, ingredient, l Water Paper page, preceding drying, top sizing, after the techniques step such as dry
Suddenly, in which:
A, slurry carries out mashing operation with three tapered mill series connection using 100% Softwood salt natural color pulp as raw material,
Slurry pulping degree control be 24~28oSR, 8~14 grams of weight in wet base；
B, auxiliary material is added using constant part, auxiliary material is to oven dry stock dosage, by weight: enhanced AKD sizing agent 2~4% helps
Agent 0.02~0.04%, drying strengthening agent 1.2~1.5%, wet strength agent 1~2%, softening agent 0.05~0.1% are stayed, the slurry diluted is configured to
Material online carries out double dewatering by folded net；
C, l Water Paper page is 95% by preceding be dried to mass dryness fraction, then using film transfer sizing pressure into after press section unipress
Crusher carries out top sizing processing to paper, and Cypres are formulated using polyvinyl alcohol and paraffin wax emulsions；Measure rod type
Number: 1#, gauge stick pressure 100kpa；Page tension 220N/m before sizing portion2, page tension 200N/m behind sizing portion2；
D, by top sizing, treated that l Water Paper page is dried after；It is dried to mass dryness fraction 92%, then passes through calender
Pressurization, finally batches paper, and the antifreeze ox-hide paper product of gained waterproof is quantitative: quantitative 80~125g/m2, whiteness 18~
20%ISO, moisture 7.0~9.0%, machine direction tensile strength >=8.0 kN/m, burst index >=4.0 kPa .m2/ g, ring pressure
Spend (longitudinal direction) >=1.5kN/m, 10~20g/m of water imbibition2。
Further, in step B, forming net speed control is 500m/min, pushes up net dehydrating amount 27%, and head box labial lamina is opened
Spend 30.6mm.
Further, in step C, a crimping pressure of press section is controlled are as follows: 900 kN/m, the control of two crimping pressure are as follows:
900 kN/m；Curl tension: 400kN/m.
Further, in step C, the polyvinyl alcohol dosage in Cypres is controlled in 5-10kg/ tons of paper.
Further, in step C, the paraffin wax emulsions dosage in Cypres is controlled in 5-10kg/ tons of paper.
Further, in step C, the sizing concentration of Cypres is controlled 10~12%.
Further, in step C, the resin added of Cypres is in 2.0~4.0g/m2。
Further, in step D, calender is according to smoothness index slight pressurization, 30~40kN/m of line pressure.
Beneficial effects of the present invention: the present invention provides a kind of manufacturing method of the antifreeze brown paper of waterproof, the anti-tensiles of product
Intensity is good, and damage resistibility can be brilliant, and the antifreeze significant effect of waterproof can satisfy fresh cold chain food packaging requirement, thoroughly solves
Existing brown paper non-watertight not antifreeze technical problem brings great economic benefit for enterprise, improves enterprise competitiveness.
1, the present invention is handled by using film transfer size presser, the antifreeze top sizing treatment process skill of research waterproof
Art, the interior functionalized chemical auxiliary agent added of research slurry, makes Cypres using polyvinyl alcohol and paraffin wax emulsions, preferably solves
It has determined requirement of the fresh cold chain food packaging to paper waterproof resistance to frost, has produced the antifreeze brown paper of up-to-standard waterproof.
2, the present invention is added to softening agent in slurry, reduces interfibrous kinematics and static friction coefficient, not only has brown paper
Soft, smooth, comfortable feel, also matches with Cypres and improves brown paper resistance to frost jointly.
3, the present invention improves the waterproof performance of product by adding enhanced AKD sizing agent, by retention agent, drying strengthening agent,
The mutual cooperation of wet strength agent mutually cooperates with, improves the intensity of product itself, meet client to product tensile strength, damage resistibility
The requirement and quality requirement of this three aspect of energy, waterproof antifreezing effect.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, combined with specific embodiments below to this
Invention is described in detail, the description of this part be only it is exemplary and explanatory, should not have to protection scope of the present invention any
Restriction effect.
The antifreeze ox-hide paper product quantitative target of waterproof: quantitative 80~125g/m2, 18~20%ISO of whiteness, moisture 7.0~
9.0%, machine direction tensile strength >=8.0 kN/m, burst index >=4.0 kPa .m2/ g, ring crush intensity (longitudinal direction) >=1.5kN/m
, 10~20g/m of water imbibition2。
The antifreeze brown paper of 1:115 grams of waterproof of embodiment
100% Softwood salt natural color pulp is beaten by three tapered mill series connection, beating degree 26oSR, weight in wet base 12
Gram；By constant part be added the enhanced AKD sizing agent of 35kg/ tons of paper, 12kg/ tons of paper drying strengthening agents, 0.2kg/ tons of paper retention agents,
15kg/ tons of paper wet strength agents, 0.5kg/ tons of paper softening agents, are configured to the approach flow diluted, carry out double dewatering by folded net,
Guarantee that fiber is uniformly dispersed, vertically and horizontally fiber alignment is orderly and is uniformly distributed；L Water Paper page is into after press section unipress, into preceding dry
The dry page to mass dryness fraction 95% enters sizing portion, carries out top sizing processing to paper using film transfer mode, Cypres are adopted
It is configured with polyvinyl alcohol and paraffin wax emulsions, sizing concentration control is 12%, and resin added is in 3.5g/m2, polyvinyl alcohol dosage control
System is controlled in 9kg/ tons of paper, paraffin wax emulsions dosage in 6kg/ tons of paper；L Water Paper page after treatment is into rear drying process, through later
In 92% page, by calender, (according to smoothness index slight pressurization, line pressure control exists calender mass dryness fraction after drying process
30~40kN/m), then paper is batched, quantification of 115g/m can be obtained2The antifreeze brown paper of waterproof.
The antifreeze brown paper main indicator of waterproof produced according to process above: quantitative 115g/m2, whiteness 20%ISO, moisture
8.0%, machine direction tensile strength 9.5 kN/m, burst index 5.4kPa .m2/ g, ring crush intensity (longitudinal direction) 2.5kN/m, water suction
Property 15g/m2, client is fully met to the requirement and quality requirement of product.
The antifreeze brown paper of 2:100 grams of waterproof of embodiment
100% Softwood salt natural color pulp is beaten by three tapered mill series connection, beating degree 28oSR, weight in wet base 12
Gram；By constant part be added the enhanced AKD sizing agent of 30kg/ tons of paper, 15kg/ tons of paper drying strengthening agents, 0.2kg/ tons of paper retention agents,
16kg/ tons of paper wet strength agents, 0.8kg/ tons of paper softening agents, are configured to the approach flow diluted, carry out double dewatering by folded net,
Guarantee that fiber is uniformly dispersed, vertically and horizontally fiber alignment orderly and is uniformly distributed, l Water Paper page is into after press section unipress, into preceding dry
The dry page to mass dryness fraction 95% enters sizing portion, carries out top sizing processing to paper using film transfer mode, Cypres are adopted
It is configured with polyvinyl alcohol and paraffin wax emulsions, sizing concentration control is 10%, and resin added is in 3.0g/m2, polyvinyl alcohol dosage control
System is controlled in 8kg/ tons of paper, paraffin wax emulsions dosage in 6kg/ tons of paper；L Water Paper page after treatment is into rear drying process, through later
In 92% page, by calender, (according to smoothness index slight pressurization, line pressure control is calender mass dryness fraction after drying process
30~40kN/m), then paper is batched, quantification of 100g/m can be obtained2The antifreeze brown paper of waterproof.
The antifreeze brown paper main indicator of waterproof produced according to process above: quantitative 100g/m2, whiteness 20%ISO, moisture
8.0%, 8.8 kN/m of machine direction tensile strength, 5.0 kPa .m of burst index2/ g, ring crush intensity (longitudinal direction) 2.2kN/m, water suction
Property 14g/m2, client is fully met to the requirement and quality requirement of product.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.
Used herein a specific example illustrates the principle and implementation of the invention, the explanation of above example
It is merely used to help understand method and its core concept of the invention.The above is only a preferred embodiment of the present invention, it answers
When pointing out due to the finiteness of literal expression, and objectively there is unlimited specific structure, for the common skill of the art
For art personnel, without departing from the principle of the present invention, several improvement, retouching or variation can also be made, can also incited somebody to action
Above-mentioned technical characteristic is combined in the right way；These improve retouching, variation or combination, or the not improved structure by invention
Think and technical solution directly applies to other occasions, is regarded as protection scope of the present invention.
Claims (8)
1. a kind of manufacturing method of the antifreeze brown paper of waterproof, including by Softwood salt natural color pulp through mashing, ingredient, l Water Paper page
It manufactures paper with pulp, preceding drying, top sizing, the afterwards processing steps such as dry, it is characterised in that:
A, slurry carries out mashing operation with three tapered mill series connection using 100% Softwood salt natural color pulp as raw material,
Slurry pulping degree control be 24~28oSR, 8~14 grams of weight in wet base；
B, auxiliary material is added using constant part, auxiliary material is to oven dry stock dosage, by weight: enhanced AKD sizing agent 2~4% helps
Agent 0.02~0.04%, drying strengthening agent 1.2~1.5%, wet strength agent 1~2%, softening agent 0.05~0.1% are stayed, the slurry diluted is configured to
Material online carries out double dewatering by folded net；
C, l Water Paper page is 95% by preceding be dried to mass dryness fraction, then using film transfer sizing pressure into after press section unipress
Crusher carries out top sizing processing to paper, and Cypres are formulated using polyvinyl alcohol and paraffin wax emulsions；Measure rod type
Number: 1#, gauge stick pressure 100kpa；Page tension 220N/m before sizing portion2, page tension 200N/m behind sizing portion2；
D, by top sizing, treated that l Water Paper page is dried after；It is dried to mass dryness fraction 92%, then passes through calender
Pressurization, finally batches paper.
2. a kind of manufacturing method of the antifreeze brown paper of waterproof according to claim 1, which is characterized in that in step B, molding
Net spee control is 500m/min, pushes up net dehydrating amount 27%, head box opening degree of slice lip 30.6mm.
3. a kind of manufacturing method of the antifreeze brown paper of waterproof according to claim 1, which is characterized in that in step C, squeezing
The one crimping pressure in portion controls are as follows: 900 kN/m, two crimping pressure control are as follows: 900 kN/m；Curl tension: 400kN/m.
4. a kind of manufacturing method of the antifreeze brown paper of waterproof according to claim 1, which is characterized in that in step C, surface
Polyvinyl alcohol dosage in sizing agent is controlled in 5-10kg/ tons of paper.
5. a kind of manufacturing method of the antifreeze brown paper of waterproof according to claim 1, which is characterized in that in step C, surface
Paraffin wax emulsions dosage in sizing agent is controlled in 5-10kg/ tons of paper.
6. a kind of manufacturing method of the antifreeze brown paper of waterproof according to claim 1, which is characterized in that in step C, surface
The sizing concentration of sizing agent is controlled 10~12%.
7. a kind of manufacturing method of the antifreeze brown paper of waterproof according to claim 1, which is characterized in that in step C, surface
The resin added of sizing agent is in 2.0~4.0g/m2。
8. a kind of manufacturing method of the antifreeze brown paper of waterproof according to claim 1, which is characterized in that in step D, press polish
Machine is according to smoothness index slight pressurization, 30~40kN/m of line pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910435261.9A CN110331622B (en) | 2019-05-23 | 2019-05-23 | Manufacturing method of waterproof and antifreezing kraft paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910435261.9A CN110331622B (en) | 2019-05-23 | 2019-05-23 | Manufacturing method of waterproof and antifreezing kraft paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110331622A true CN110331622A (en) | 2019-10-15 |
| CN110331622B CN110331622B (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910435261.9A Active CN110331622B (en) | 2019-05-23 | 2019-05-23 | Manufacturing method of waterproof and antifreezing kraft paper |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116001A (en) * | 2010-12-20 | 2011-07-06 | 永州湘江纸业有限责任公司 | Extensible paper for paper bag and production method thereof |
| CN104153245A (en) * | 2014-07-24 | 2014-11-19 | 杭州百事特实业有限公司 | Solid surface sizing agent for paper-making as well as preparation method and application thereof |
| CN104452466A (en) * | 2013-09-18 | 2015-03-25 | 山东泉林纸业有限责任公司 | Natural color food wrapping paper and preparation method thereof |
| CN105672049A (en) * | 2016-01-14 | 2016-06-15 | 华南理工大学 | Oil resistant coating for packing paper as well as preparation method thereof |
| CN108468248A (en) * | 2018-03-13 | 2018-08-31 | 长沙理工大学 | A kind of manufacturing method of salt wrapping paper |
-
2019
- 2019-05-23 CN CN201910435261.9A patent/CN110331622B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116001A (en) * | 2010-12-20 | 2011-07-06 | 永州湘江纸业有限责任公司 | Extensible paper for paper bag and production method thereof |
| CN104452466A (en) * | 2013-09-18 | 2015-03-25 | 山东泉林纸业有限责任公司 | Natural color food wrapping paper and preparation method thereof |
| CN104153245A (en) * | 2014-07-24 | 2014-11-19 | 杭州百事特实业有限公司 | Solid surface sizing agent for paper-making as well as preparation method and application thereof |
| CN105672049A (en) * | 2016-01-14 | 2016-06-15 | 华南理工大学 | Oil resistant coating for packing paper as well as preparation method thereof |
| CN108468248A (en) * | 2018-03-13 | 2018-08-31 | 长沙理工大学 | A kind of manufacturing method of salt wrapping paper |
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| CN110331622B (en) | 2020-09-11 |
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