CN108035193B - Production method of base paper for vacuum aluminizing - Google Patents
Production method of base paper for vacuum aluminizing Download PDFInfo
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- CN108035193B CN108035193B CN201810037744.9A CN201810037744A CN108035193B CN 108035193 B CN108035193 B CN 108035193B CN 201810037744 A CN201810037744 A CN 201810037744A CN 108035193 B CN108035193 B CN 108035193B
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- pulp
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- styrene
- base paper
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Classifications
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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
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/20—Chemically or biochemically modified fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- 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
- D21H19/20—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
- D21H21/16—Sizing or water-repelling agents
Abstract
The invention discloses a production method of base paper for vacuum aluminizing, which comprises the steps of dissolving calcium nitrate and disodium hydrogen phosphate in hardwood pulp and softwood pulp respectively, mixing, generating hydroxyapatite in wood pulp fibers and in surface pores through biomimetic mineralization, mixing the obtained modified paper pulp with a filler, a retention aid and a sizing agent, papermaking to obtain uncoated paper, uniformly coating the surface of the uncoated paper with a coating liquid obtained by mixing styrene-acrylic emulsion, a polyvinyl alcohol solution and silica sol, and drying to obtain the vacuum aluminizing base paper. The vacuum aluminized base paper produced by the invention has good surface smoothness, luster and printability and is suitable for the field of packaging and printing.
Description
Technical Field
The invention relates to the technical field of paper processing, in particular to a production method of base paper for vacuum aluminizing.
Background
The aluminized paper mainly comprises base paper, an aluminum layer and a coating, and is widely applied to the field of packaging materials due to good glossiness and smoothness, good flexibility, high fastness of the aluminum-sprayed layer, attractive appearance, environmental friendliness, and good printing performance and machining performance. The aluminized paper is divided into a direct method (paper surface aluminizing) and a transfer method (membrane surface aluminizing) according to the production process, wherein the direct method is to directly place the paper in a vacuum aluminizing machine for aluminizing, and because the aluminized layer is in a fine micropore roughness along the loose structure of the paper surface fibers, the obtained aluminized film has a rough surface and poor smoothness, and the flatness of the aluminized film cannot adapt to the printing of packages, so that the application range of the aluminized paper is limited. The quality of the aluminized paper produced by the direct method is greatly influenced by the performance of the base paper, and in order to improve the service performance of an aluminum film, the surface of the paper is often coated before aluminizing to improve the smoothness and the brightness of the surface of the paper, but the method has limited improvement on the performance of the aluminized paper. In order to further improve the performance of the aluminized paper produced by the direct method and enable the aluminized paper to meet the requirements of packaging printing materials, the existing processing method of the vacuum aluminized base paper needs to be improved.
Disclosure of Invention
The invention aims to make up for the defects of the prior art and provides a production method of vacuum aluminized base paper which has good surface smoothness and glossiness and is suitable for packaging printing.
The invention is realized by the following technical scheme:
a production method of base paper for vacuum aluminizing comprises the following steps:
(1) adding calcium nitrate which accounts for 0.4-0.5% of the weight of hardwood pulp into hardwood pulp to be completely dissolved, adding disodium hydrogen phosphate which accounts for 0.15-0.25% of the weight of softwood pulp into softwood pulp to be completely dissolved, then uniformly mixing the hardwood pulp and the softwood pulp which account for the same weight to obtain mixed pulp, firstly adjusting the pH value to 9-10, preserving the temperature at 35-37 ℃ for mineralization for 24-48h, and then adjusting the pH value to be neutral to obtain modified paper pulp;
(2) adding a filler which is 10-30% of the oven-dried weight of the modified paper pulp, a retention aid which is 0.5-1% of the oven-dried weight of the modified paper pulp and a sizing agent which is 0.05-0.1% of the oven-dried weight of the modified paper pulp into the modified paper pulp obtained in the step (1), and obtaining uncoated paper through papermaking;
(3) and (3) mixing the styrene-acrylic emulsion, a polyvinyl alcohol solution which is 30-50% of the weight of the styrene-acrylic emulsion and silica sol which is 10-15% of the weight of the styrene-acrylic emulsion to obtain a coating liquid, uniformly coating the coating liquid on the surface of the uncoated paper obtained in the step (2), and drying to obtain the vacuum aluminized base paper.
The concentration of the softwood pulp is 5-10%, and the concentration of the hardwood pulp is 5-10%.
The filler is talcum powder or calcium carbonate.
The retention aid is cationic starch.
The sizing agent is an alkyl ketene dimer.
The solid content of the styrene-acrylic emulsion is 40-50%.
The mass fraction of the polyvinyl alcohol solution is 4-8%.
The solid content of the silica sol is 30-40%.
The invention has the advantages that:
calcium nitrate and disodium hydrogen phosphate are dissolved in hardwood pulp and softwood pulp and then mixed, calcium ions permeate into the surface and internal pores of wood pulp fibers, hydroxyapatite is generated in the wood pulp fibers and the surface pores through biomimetic mineralization, then the obtained modified paper pulp is mixed with fillers, retention aids and sizing agents to be manufactured into uncoated paper, finally the surface of the uncoated paper is uniformly coated with coating liquid obtained by mixing styrene-acrylic emulsion, polyvinyl alcohol solution and silica sol, and the vacuum aluminized base paper is obtained after drying. According to the invention, hydroxyapatite grows in pores of paper fibers by a biomimetic mineralization method, and the filling effect of silica sol in the coating liquid is combined, so that the microporous structure of the surface of the paper is effectively reduced, the smoothness and the glossiness of the paper are improved, the smoothness of an aluminum film after aluminum plating is improved, and the performance of the aluminum-plated paper is improved. The vacuum aluminized base paper produced by the invention has good surface smoothness, luster and printability and is suitable for the field of packaging and printing.
Detailed Description
A production method of base paper for vacuum aluminizing comprises the following steps:
(1) adding calcium nitrate which accounts for 0.4 percent of the weight of hardwood pulp into hardwood pulp to be completely dissolved, adding disodium hydrogen phosphate which accounts for 0.15 percent of the weight of softwood pulp into softwood pulp to be completely dissolved, then uniformly mixing the hardwood pulp and the softwood pulp which account for the same weight to obtain mixed pulp, firstly adjusting the pH value to 9, preserving heat and mineralizing at 35 ℃ for 24 hours, and then adjusting the pH value to be neutral to obtain modified paper pulp;
(2) adding a filler which is 10 percent of the oven dry weight of the modified paper pulp, a retention aid which is 0.5 percent of the oven dry weight of the modified paper pulp and a sizing agent which is 0.05 percent of the oven dry weight of the modified paper pulp into the modified paper pulp obtained in the step (1), and papermaking to obtain uncoated paper;
(3) and (3) mixing the styrene-acrylic emulsion, a polyvinyl alcohol solution with the weight equivalent to 30% of that of the styrene-acrylic emulsion and a silica sol with the weight equivalent to 10% of that of the styrene-acrylic emulsion to obtain a coating liquid, uniformly coating the surface of the uncoated paper obtained in the step (2) with the coating liquid, and drying to obtain the vacuum aluminized base paper.
The concentration of softwood pulp is 5%, and the concentration of hardwood pulp is 5%.
The filler is talcum powder.
The retention aid is cationic starch.
The sizing agent is an alkyl ketene dimer.
The solid content of the styrene-acrylic emulsion is 40%.
The mass fraction of the polyvinyl alcohol solution is 4%.
The silica sol had a solid content of 30%.
Claims (1)
1. A production method of base paper for vacuum aluminizing is characterized by comprising the following steps:
(1) adding calcium nitrate which accounts for 0.4-0.5% of the weight of hardwood pulp into hardwood pulp to be completely dissolved, adding disodium hydrogen phosphate which accounts for 0.15-0.25% of the weight of softwood pulp into softwood pulp to be completely dissolved, then uniformly mixing the hardwood pulp and the softwood pulp which account for the same weight to obtain mixed pulp, firstly adjusting the pH value to 9-10, preserving the temperature at 35-37 ℃ for mineralization for 24-48h, and then adjusting the pH value to be neutral to obtain modified paper pulp;
(2) adding a filler which is 10-30% of the oven-dried weight of the modified paper pulp, a retention aid which is 0.5-1% of the oven-dried weight of the modified paper pulp and a sizing agent which is 0.05-0.1% of the oven-dried weight of the modified paper pulp into the modified paper pulp obtained in the step (1), and obtaining uncoated paper through papermaking;
(3) mixing styrene-acrylic emulsion, polyvinyl alcohol solution which accounts for 30-50% of the weight of the styrene-acrylic emulsion and silica sol which accounts for 10-15% of the weight of the styrene-acrylic emulsion to obtain coating liquid, uniformly coating the coating liquid on the surface of the uncoated paper obtained in the step (2), and drying to obtain vacuum aluminized base paper;
the concentration of the softwood pulp is 5-10%, and the concentration of the hardwood pulp is 5-10%;
the filler is talcum powder or calcium carbonate;
the retention aid is cationic starch;
the sizing agent is alkyl ketene dimer;
the solid content of the styrene-acrylic emulsion is 40-50%;
the mass fraction of the polyvinyl alcohol solution is 4-8%;
the solid content of the silica sol is 30-40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037744.9A CN108035193B (en) | 2018-01-16 | 2018-01-16 | Production method of base paper for vacuum aluminizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037744.9A CN108035193B (en) | 2018-01-16 | 2018-01-16 | Production method of base paper for vacuum aluminizing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108035193A CN108035193A (en) | 2018-05-15 |
| CN108035193B true CN108035193B (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810037744.9A Active CN108035193B (en) | 2018-01-16 | 2018-01-16 | Production method of base paper for vacuum aluminizing |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114059389A (en) * | 2020-07-30 | 2022-02-18 | 湖南中烟工业有限责任公司 | Direct-plating aluminum lining paper and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015969A (en) * | 2007-03-09 | 2007-08-15 | 石家庄中康纸业有限公司 | Watermark high-definition copperplate paper and manufacture technique thereof |
| CN104018396A (en) * | 2014-06-24 | 2014-09-03 | 岳阳林纸股份有限公司 | Vacuum aluminum-plating paper and manufacturing method thereof |
| CN105088869A (en) * | 2015-08-04 | 2015-11-25 | 浙江中烟工业有限责任公司 | Organic-inorganic nano-fiber composite paper and preparation method and application thereof |
| CN106012677A (en) * | 2016-05-31 | 2016-10-12 | 中国科学院上海硅酸盐研究所 | Nano-silver compounded hydroxyapatite super-long nanowire antibacterial paper |
| CN106676947A (en) * | 2016-12-02 | 2017-05-17 | 中国科学院上海硅酸盐研究所 | Inorganic fire-resistant paper as well as preparation method and application thereof |
-
2018
- 2018-01-16 CN CN201810037744.9A patent/CN108035193B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015969A (en) * | 2007-03-09 | 2007-08-15 | 石家庄中康纸业有限公司 | Watermark high-definition copperplate paper and manufacture technique thereof |
| CN104018396A (en) * | 2014-06-24 | 2014-09-03 | 岳阳林纸股份有限公司 | Vacuum aluminum-plating paper and manufacturing method thereof |
| CN105088869A (en) * | 2015-08-04 | 2015-11-25 | 浙江中烟工业有限责任公司 | Organic-inorganic nano-fiber composite paper and preparation method and application thereof |
| CN106012677A (en) * | 2016-05-31 | 2016-10-12 | 中国科学院上海硅酸盐研究所 | Nano-silver compounded hydroxyapatite super-long nanowire antibacterial paper |
| CN106676947A (en) * | 2016-12-02 | 2017-05-17 | 中国科学院上海硅酸盐研究所 | Inorganic fire-resistant paper as well as preparation method and application thereof |
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| Publication number | Publication date |
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| CN108035193A (en) | 2018-05-15 |
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