CN105461951A - Synthetic paper with high tear resistance and preparation method thereof - Google Patents
Synthetic paper with high tear resistance and preparation method thereof Download PDFInfo
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- CN105461951A CN105461951A CN201511035080.5A CN201511035080A CN105461951A CN 105461951 A CN105461951 A CN 105461951A CN 201511035080 A CN201511035080 A CN 201511035080A CN 105461951 A CN105461951 A CN 105461951A
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- synthetic paper
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- polytetrahydrofuran
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
- C08J2475/08—Polyurethanes from polyethers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The invention provides synthetic paper with the high tear resistance. The synthetic paper is characterized in that the upper surface and the lower surface of the synthetic paper are each coated with a tear resisting layer, and polytetrahydrofuran emulsion which is processed through toughening modification by adopting a cross-linking sliding graft polymer is adopted as the tear resisting layers. According to the synthetic paper with the high tear resistance, the polytetrahydrofuran emulsion which is processed through toughening modification by adopting the cross-linking sliding graft polymer is adopted as the tear resisting layers to be applied on the surfaces of the synthetic paper, the tear resistance of the synthetic paper can be greatly enhanced, and therefore the application range of the synthetic paper is wider.
Description
Technical field
The present invention relates to and a kind of there is synthetic paper of high impart tear and preparation method thereof.
Background technology
Synthetic paper makes page work in-process with the method for synthesized polymer material (as polyethylene, polypropylene etc.) membrane (press mold or blown film), then the method for chemistry or physics is used to make it paper, as sandization can increase opaqueness, lyophobic performance etc. can be obtained by pharmaceutical chemicals treat surface.Another kind of synthetic paper product can use synthetic pulp, manufactures paper with pulp after making beating process.Synthetic paper has the wet tenacity of high tensile strength, high tear strength, good insulating property, optical property and excellence.And not water funk, do not damage by worms, flexible, can heat insulation, dimensional stabilizing, surface smoothing, be suitable for books and periodicals and printing, but its tear resistance is excellent not enough, limits its application of some special dimension.
Slip graftomer, its structure comprises: ring molecule, form with it the thread-like molecule of inclusion through this ring molecule, the capping group at side chain molecule and thread-like molecule two ends.This ring molecule is cyclodextrin (α-CD), and thread-like molecule is polyoxyethylene glycol (PEG), and side chain molecule is polycaprolactone (PCL).Selected end-capping reagent has the compound of " large volume " group.Slip graftomer have thread-like molecule, as ring molecule cyclodextrin and be positioned at the capping group of thread-like molecule two end, and be connected to the side chain molecule PCL on ring molecule cyclodextrin.Side chain molecule is connected on ring molecule cyclodextrin by the ring-opening reaction of 6-caprolactone, and side chain can be free to slide on thread-like molecule along with cyclodextrin, therefore this graftomer is referred to as " slip graftomer ".
Polytetrahydrofuran is a kind of macromolecular material of excellent performance, and the product density that polytetrahydrofuran obtains is high, and have good kindliness and anti-hydrolytic performance, ageing resistance is good, and mechanical property is good.
Summary of the invention
The problem to be solved in the present invention is to provide a kind ofly to be had printing effect and has the synthetic paper of high impart tear.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Have a synthetic paper for high impart tear, it is characterized in that: the upper and lower surface of described synthetic paper all scribbles anti-tear layer, described anti-tear layer is the polytetrahydrofuran emulsion adopting crosslinked slip graftomer toughening modifying.
Further, described employing is cross-linked the polytetrahydrofuran emulsion of slip graftomer toughening modifying, and the raw material comprising following mass fraction is prepared from:
Preferably, the raw material comprising following mass fraction is prepared from:
Preferably, described linking agent is naphthenic type vulcabond.
Preferred, described linking agent is two (isocyanatomethyl) hexanaphthene, hexamethylene diisocyanate, 3-isocyanic ester methylene-3,5,5-trimethylcyclohexylisocyanate, diphenylmethanediisocyanate or Toluene-2,4-diisocyanate, the one in 4-vulcabond; Most preferred is Toluene-2,4-diisocyanate, 4-vulcabond.
Further, described hydrophilic chain extender is dimethylol propionic acid (DMPA).
Further, the mole number of the total hydroxyl comprised in described raw material and, and comprise total isocyanate group mole number and equal.
Further, described ptmg molecule amount is 1000-2000; Preferably molecular weight is 1000.
Further, described slip graftomer is purchased from Advanced Softmaterials Inc..
Described employing is cross-linked the preparation method of the polytetrahydrofuran emulsion of slip graftomer toughening modifying, it is characterized in that, comprises the following steps:
(1) DMPA is dissolved in organic solvent, stirring and dissolving, to solution clear, obtains DMPA solution;
(2) by polytetrahydrofuran, DMPA solution, the mixing of naphthenic type vulcabond, 60-120 DEG C of stirring reaction 1-4 hour, is cooled to room temperature.
(3) slip graftomer is dissolved in organic solvent, adds in the mixture that step (2) obtains, stir, obtain thick white solution, continue to add organic solvent must dilute after white emulsion;
(4) in white emulsion, add the NaOH aqueous solution, stir, continue to add water, stir, bleed, obtain modification tetrahydrofuran (THF) emulsion.
Further, the organic solvent in described step (1) is dimethyl formamide (DMF), stirring and dissolving at 80-85 DEG C.
Further, in described step (2), temperature of reaction is 100 DEG C, and the reaction times is 1.5 hours.
Further, in described step (3), organic solvent is acetone; Slip graftomer is configured in the acetone soln of 20%, adds in the mixture that step (2) obtains, stirs the white solution obtained compared with thickness; Using the quality of DMPA, polytetrahydrofuran, naphthenic type vulcabond, slip graftomer with as solute amount, continue to add acetone, until reaching Solute mass is the acetone soln of 40%, obtain good fluidity, solution is rarer, the white emulsion of the non-completely dissolve of bubble.
In described step (4), in white emulsion, add the NaOH aqueous solution that concentration is 1-1.5mol/L; After stirring, using the quality of DMPA, polytetrahydrofuran, naphthenic type vulcabond, slip graftomer with as solute amount, continue to add water, until reach the aqueous solution that Solute mass is 30%, continue stirring 1 hour, bleed, leave standstill, final uniform and stable white emulsion, i.e. the polytetrahydrofuran emulsion of crosslinked slip graftomer toughening modifying.
The present invention also aims to provide the preparation method of the synthetic paper with high impart tear, comprise the steps: that adopting the polytetrahydrofuran emulsion of crosslinked slip graftomer toughening modifying to be diluted to solid content is 10-30%, emulsion hairbrush after dilution is brushed equably the upper surface of synthetic paper, room temperature is dried, synthetic paper is turned over, emulsion after another side coats dilution again, room temperature is dried, and to obtain final product.
The advantage that the present invention has and positively effect are: the present invention take polytetrahydrofuran as matrix, using slip graftomer as toughner, be cross-linked between its side chain molecule and polytetrahydrofuran, the cross-linking agent generated is of a size of Nano grade, and be dispersed in polytetrahydrofuran matrix, effectively can improve the consistency of polytetrahydrofuran and slip graftomer, increase the bounding force at interface, effectively improve the snappiness of polytetrahydrofuran; This material is made emulsion, is applied to the surface of synthetic paper, can greatly strengthen its impart tear, make its range of application wider.
Embodiment
Below by embodiment, the present invention is specifically described; what be necessary to herein means out is that the present embodiment is only used to further illustrate the present invention; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make improvement and the adjustment of some essence according to the content of foregoing invention.
All Digital IDs, such as pH, temperature, time, concentration, comprise scope, is all approximation.Understand, although not always clear and definite describe all Digital IDs before all add term " about ".Also will understand, describe although always not clear and definite, reagent described herein is only example, and its Equivalent is known in the art simultaneously.
Embodiment 1
1, the preparation of the polytetrahydrofuran emulsion of crosslinked slip graftomer toughening modifying is adopted:
(1) 3.13gDMPA (mole number: 0.02336 is taken; OH mole number: 0.04672); Be dissolved in 5.71g dimethyl formamide (DMF), 80 DEG C of heated and stirred, dissolve completely to DMPA, and solution clear obtains DMPA solution.
0.025), DMPA solution, 7.15g Toluene-2,4-diisocyanate (2) by the polytetrahydrofuran of 12.5g1000 molecular weight (OH mole number:, 4-vulcabond (mole number: 0.03686; NCO mole number: 0.07371) mix, 100 DEG C of stirring reactions 1.5 hours, are cooled to room temperature.
(3) graftomer that slided by 1.5g is dissolved in 6g acetone, obtain 20% acetone soln (OH mole number: 0.002036), adds in the mixture that step (2) obtains, stirs the white solution obtained compared with thickness; Using the quality of DMPA, polytetrahydrofuran, naphthenic type vulcabond, slip graftomer with as solute amount, continue to add acetone, until reaching Solute mass is the acetone soln of 40%, obtain good fluidity, solution is rarer, the white emulsion of the non-completely dissolve of bubble.
(4) in white emulsion, add the NaOH aqueous solution 10.71g that concentration is 1.45mol/L; After stirring, using the quality of DMPA, polytetrahydrofuran, naphthenic type vulcabond, slip graftomer with as solute amount, continue to add water, until reach the aqueous solution that Solute mass is 30%, continue stirring 1 hour, bleed, leave standstill, final uniform and stable white emulsion, namely obtains the polytetrahydrofuran emulsion adopting crosslinked slip graftomer toughening modifying.
2, there is the preparation of the synthetic paper of high impart tear
It is 20% that the polytetrahydrofuran emulsion above-mentioned use being cross-linked slip graftomer toughening modifying is diluted with water to solid content, above-mentioned diluting emulsion hairbrush is brushed equably the upper surface of Teslin synthetic paper, at room temperature dry, Teslin synthetic paper is turned over, coat above-mentioned emulsion again, at room temperature dry.Observe the synthetic paper dried, surface uniform, without any vestige.
Embodiment 2
1, the preparation of the polytetrahydrofuran emulsion of crosslinked slip graftomer toughening modifying is adopted
(1) 2.5gDMPA (mole number: 0.01866 is taken; OH mole number: 0.03731); Be dissolved in 4.56g dimethyl formamide (DMF), 81 DEG C of heated and stirred, dissolve completely to DMPA, and solution clear obtains DMPA solution.
0.02), DMPA solution, 5.72g Toluene-2,4-diisocyanate (2) by the polytetrahydrofuran of 10g1000 molecular weight (OH mole number:, 4-vulcabond (mole number: 0.02948; NCO mole number: 0.05897) mix, 100 DEG C of stirring reactions 3 hours, are cooled to room temperature.
(3) graftomer that slided by 1.2g is dissolved in 4.8g acetone, obtain 20% acetone soln (OH mole number: 0.001628), adds in the mixture that step (2) obtains, stirs the white solution obtained compared with thickness; Using the quality of DMPA, polytetrahydrofuran, naphthenic type vulcabond, slip graftomer with as solute amount, continue to add acetone, until reaching Solute mass is the acetone soln of 40%, obtain good fluidity, solution is rarer, the white emulsion of the non-completely dissolve of bubble.
(4) in white emulsion, add the NaOH aqueous solution 10.46g that concentration is 1.15mol/L; After stirring, using the quality of DMPA, polytetrahydrofuran, naphthenic type vulcabond, slip graftomer with as solute amount, continue to add water, until reach the aqueous solution that Solute mass is 30%, continue stirring 1 hour, bleed, leave standstill, final uniform and stable white emulsion, namely obtains the polytetrahydrofuran emulsion adopting crosslinked slip graftomer toughening modifying.
2, there is the preparation of the synthetic paper of high impart tear
It is 10% that the polytetrahydrofuran emulsion above-mentioned use being cross-linked slip graftomer toughening modifying is diluted with water to solid content, above-mentioned diluting emulsion hairbrush is brushed equably the upper surface of the Teslin synthetic paper of PPG company of the U.S., at room temperature dry, Teslin synthetic paper is turned over, coat above-mentioned emulsion again, at room temperature dry.Observe the synthetic paper dried, surface uniform, without any vestige.
Effect experimental examples
The synthetic paper with high impart tear that embodiment 1,2 obtains is carried out comparing of impart tear with Teslin synthetic paper, and result is as shown in the table:
As seen from the above table, the tear resistance that the present invention has the more general synthetic paper of synthetic paper of high impart tear obviously strengthens, and the synthetic paper printing performance that the present invention simultaneously has high impart tear is also good.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the scope of the invention change and improve, and all should still belong within this patent covering scope.
Claims (10)
1. have a synthetic paper for high impart tear, it is characterized in that: the upper and lower surface of described synthetic paper all scribbles anti-tear layer, described anti-tear layer is the polytetrahydrofuran emulsion adopting crosslinked slip graftomer toughening modifying.
2. synthetic paper according to claim 1, is characterized in that: the raw material that the polytetrahydrofuran emulsion that described employing is cross-linked slip graftomer toughening modifying comprises following mass fraction is prepared from:
3. synthetic paper according to claim 2, is characterized in that: described linking agent is naphthenic type vulcabond.
4. modification tetrahydrofuran (THF) emulsion according to claim 3, it is characterized in that: described linking agent is two (isocyanatomethyl) hexanaphthene, 1, hexamethylene-diisocyanate, 3-isocyanic ester methylene-3,5,5-trimethylcyclohexylisocyanate, diphenylmethanediisocyanate or Toluene-2,4-diisocyanate, the one in 4-vulcabond; Preferably Toluene-2,4-diisocyanate, 4-vulcabond.
5. synthetic paper according to claim 2, is characterized in that: described hydrophilic chain extender is dimethylol propionic acid (DMPA).
6. synthetic paper according to claim 2, is characterized in that: described ptmg molecule amount is 1000-2000; Preferably molecular weight is 1000.
7. synthetic paper according to claim 2, is characterized in that: the preparation method that described employing is cross-linked the polytetrahydrofuran emulsion of slip graftomer toughening modifying is comprise the following steps:
(1) DMPA is dissolved in organic solvent, stirring and dissolving, to solution clear, obtains DMPA solution;
(2) by polytetrahydrofuran, DMPA solution, the mixing of naphthenic type vulcabond, during 60-120 DEG C of stirring reaction 1-4, room temperature is cooled to.
(3) slip graftomer is dissolved in acetone, adds in the mixture that step (2) obtains, stir, obtain thick white solution, continue to add acetone must dilute after white emulsion;
(4) in white emulsion, add the NaOH aqueous solution, stir, continue to add water, stir, bleed, obtain modification tetrahydrofuran (THF) emulsion.
8. synthetic paper according to claim 7, is characterized in that: the organic solvent in described step (1) is dimethyl formamide (DMF), stirring and dissolving at 80-85 DEG C.
9. synthetic paper according to claim 7, is characterized in that: in described step (2), temperature of reaction is 100 DEG C, and the reaction times is 1.5 hours.
10. prepare the method for the synthetic paper as claimed in claim 1 with impart tear for one kind, it is characterized in that, comprise the steps: that adopting the polytetrahydrofuran emulsion of crosslinked slip graftomer toughening modifying to be diluted to solid content is 10-30%, emulsion hairbrush after dilution is brushed equably the upper surface of synthetic paper, room temperature is dried, and is turned over by synthetic paper, the emulsion after another side coats dilution again, room temperature is dried, and to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511035080.5A CN105461951A (en) | 2015-12-31 | 2015-12-31 | Synthetic paper with high tear resistance and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511035080.5A CN105461951A (en) | 2015-12-31 | 2015-12-31 | Synthetic paper with high tear resistance and preparation method thereof |
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| CN105461951A true CN105461951A (en) | 2016-04-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113024947A (en) * | 2021-03-10 | 2021-06-25 | 浙江金仕文化用品有限公司 | Modified PP synthetic paper and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634123A (en) * | 2009-08-25 | 2010-01-27 | 陕西科技大学 | Method for preparing water-resistant high-strength functional paper |
| CN103435984A (en) * | 2013-07-22 | 2013-12-11 | 北京化工大学 | Method for toughening polydactyl acid through crosslinking sliding graft polymer |
| CN203666072U (en) * | 2013-12-13 | 2014-06-25 | 艾捷舒尔物德包装（昆山）有限公司 | Tear resisting paper |
| CN105133424A (en) * | 2015-09-01 | 2015-12-09 | 安庆市新宜纸业有限公司 | Specialty paper surface sizing process |
-
2015
- 2015-12-31 CN CN201511035080.5A patent/CN105461951A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634123A (en) * | 2009-08-25 | 2010-01-27 | 陕西科技大学 | Method for preparing water-resistant high-strength functional paper |
| CN103435984A (en) * | 2013-07-22 | 2013-12-11 | 北京化工大学 | Method for toughening polydactyl acid through crosslinking sliding graft polymer |
| CN203666072U (en) * | 2013-12-13 | 2014-06-25 | 艾捷舒尔物德包装（昆山）有限公司 | Tear resisting paper |
| CN105133424A (en) * | 2015-09-01 | 2015-12-09 | 安庆市新宜纸业有限公司 | Specialty paper surface sizing process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113024947A (en) * | 2021-03-10 | 2021-06-25 | 浙江金仕文化用品有限公司 | Modified PP synthetic paper and preparation method and application thereof |
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Application publication date: 20160406 |