CN103469690A - Method for improving whitening efficiency of fluorescent whitening agent on paper surface - Google Patents
Method for improving whitening efficiency of fluorescent whitening agent on paper surface Download PDFInfo
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- CN103469690A CN103469690A CN2013104229513A CN201310422951A CN103469690A CN 103469690 A CN103469690 A CN 103469690A CN 2013104229513 A CN2013104229513 A CN 2013104229513A CN 201310422951 A CN201310422951 A CN 201310422951A CN 103469690 A CN103469690 A CN 103469690A
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Abstract
The invention discloses a method for improving the whitening efficiency of a fluorescent whitening agent on a paper surface. The method comprises the following steps of: (1) adding 0.01-6% of disperse violet dye and 0.01-4.0% of disperse blue dye into a 10-40% liquid fluorescent whitening agent (APC) in a mechanical stirring mode, so as to prepare a fluorescent whitening agent composition; and (2) further adding 10-30% of kaolin and 5-15% of calcium carbonate in 5-15% of styrene-acrylic emulsion, uniformly stirring, subsequently adding 50-75% of a 0.01-3% PVA (Polyvinyl Alcohol) solution, further adding 1-5% of the fluorescent whitening agent composition prepared in the step (1), coating on the surface of a piece of prepared paper, drying under a drying condition of 105 DEG C, cooling to room temperature so as to obtain paper with high whiteness. The method disclosed by the invention is reasonable, simple to operate and has greatly improved whitening effect on paper, the whiteness of the paper surface is improved to 173% when compared with the whiteness of the original paper, and the whiteness effect of the paper is greatly improved.
Description
Technical field
The present invention relates to a kind of fluorescent whitening agent that improves and brighten the method for efficiency at paper surface.
Background technology
The application mode of fluorescent whitening agent in papermaking have in slurry brighten, paper surface coating is brightened, paper for surface sizing brightens.General paper grade (stock) fluorescent whitening agent is liquid dosage form, has dissolubility good, is easy to the advantage that automation is added in application process.According in paper-making process, the impact of electric charge on fluorescent whitening agent, general fluorescent whitening agent is in the process of paper application, for what brighten in starching fluorescent whitening agent disulfonic acid, tetrasulfonic acid, fluorescent whitening agent tetrasulfonic acid and fluorescent whitening agent six sulfonic acid applied are arranged in paper surface coating and top sizing.In slurry, brighten because the concentration of slurry is low, the good water solubility of fluorescent whitening agent, cause fluorescent whitening agent consumption when brightening in starching large, and it is low that the whiteness of paper promotes effect, and the utilization rate of fluorescent whitening agent is low.
Summary of the invention
The object of the present invention is to provide a kind of method reasonable, simple to operate, the raising fluorescent whitening agent high to the whitening effect raising efficiency of paper brightens the method for efficiency at paper surface.
The technical solution adopted in the present invention is:
A kind of fluorescent whitening agent that improves brightens the method for efficiency at paper surface, it comprises the steps:
(1), in the liquid fluorescent whitening agent APC of 10-40%, by mechanical agitation, add the disperse violet of 0.01-6%, 0.01-4.0% dispersed blue dye to be mixed with compositions of fluorescent whitening agents;
(2) take again the kaolin of 10-30% part, the calcium carbonate of 5-15%, the benzene emulsion that adds 5-15%, the PVA aqueous solution 50-75% that adds 0.01-3% after stirring, the compositions of fluorescent whitening agents 1-5% that adds again step (1) to prepare, carry out surface-coated at the paper surface of manufacturing paper with pulp, dry under the drying condition of 105 ℃, dry in the air to the paper that obtains high whiteness after room temperature.
Further, the aqueous solution that the PVA aqueous solution of described 0.01-3% is the degree of polymerization PVA that is 1500-2000.
On year-on-year basis under condition:
(1) do not add fluorescent whitening agent;
(2) add 1.2 part of 35% fluorescent whitening agent APC;
(3) add 1.2 parts of compositions of fluorescent whitening agents A;
Carry out surface-coated at the paper surface of manufacturing paper with pulp, dry under the drying condition of 105 ℃, dry in the air as shown in the table to the CIE whiteness that records paper after room temperature on colour photometer:
| The coating title | WI?CIE | Remarks |
| Body paper | 69.06 | Without the bodystock paper whiteness |
| Coating A | 68.08 | Not containing fluorescent whitening agent coating whiteness |
| Coating B | 104.92 | Containing fluorescent whitening agent, not containing the dye-coating whiteness |
| Coating C | 117.86 | Compositions of fluorescent whitening agents coating whiteness containing dyestuff |
As can be seen from the table, under condition, body paper CIE whiteness is than the coating A whiteness containing fluorescent whitening agent is not high by 0.96 on year-on-year basis, and reason is the whiteness that component kaolin, the calcium carbonate in coating has reduced paper; Containing fluorescent whitening agent, not containing the CIE whiteness of paper after the coating of the coating B of dyestuff than not high by 36.84 containing the Paper White Degree after the coating A coating of fluorescent whitening agent; According to the coating C containing compositions of fluorescent whitening agents of the inventive method, the CIE whiteness of the paper after coating is not than high by 49.78 containing the Paper White Degree after the coating A coating of fluorescent whitening agent.
Show according to method provided by the present invention, paper is after surface-coated brightens, and the whiteness of paper is increased to 173% of paper basic brightness, and whiteness efficiency has improved 73%.
Below in conjunction with embodiment, the invention will be further described.
The specific embodiment
Embodiment 1:
A kind of fluorescent whitening agent that improves brightens the method for efficiency at paper surface, comprise the steps:
(1), in 10% liquid fluorescent whitening agent APC, by mechanical agitation, add 0.01% disperse violet, 0.01% dispersed blue dye to be mixed with compositions of fluorescent whitening agents;
(2) take again the kaolin of 10% part, 5% calcium carbonate, add 5% benzene emulsion, the aqueous solution 50% that adds the PVA that 0.01% the degree of polymerization is 1500-2000 after stirring, the compositions of fluorescent whitening agents 1% that adds again step (1) to prepare, carry out surface-coated at the paper surface of manufacturing paper with pulp, dry under the drying condition of 105 ℃, dry in the air to the paper that obtains high whiteness after room temperature.
Embodiment 2:
A kind of fluorescent whitening agent that improves brightens the method for efficiency at paper surface, it comprises the steps:
(1), in 40% liquid fluorescent whitening agent APC, by mechanical agitation, add 6% disperse violet, 4.0% dispersed blue dye to be mixed with compositions of fluorescent whitening agents;
(2) take again the kaolin of 30% part, 15% calcium carbonate, add 15% benzene emulsion, the aqueous solution 75% that adds the PVA that 3% the degree of polymerization is 1500-2000 after stirring, the compositions of fluorescent whitening agents 5% that adds again step (1) to prepare, carry out surface-coated at the paper surface of manufacturing paper with pulp, dry under the drying condition of 105 ℃, dry in the air to the paper that obtains high whiteness after room temperature.
Embodiment 3:
A kind of fluorescent whitening agent that improves brightens the method for efficiency at paper surface, it comprises the steps:
(1), in 25% liquid fluorescent whitening agent APC, by mechanical agitation, add 3% disperse violet, 2% dispersed blue dye to be mixed with compositions of fluorescent whitening agents;
(2) take again the kaolin of 20% part, 10% calcium carbonate, add 10% benzene emulsion, the aqueous solution 60% that adds the PVA that 2% the degree of polymerization is 1500-2000 after stirring, the compositions of fluorescent whitening agents 3% that adds again step (1) to prepare, carry out surface-coated at the paper surface of manufacturing paper with pulp, dry under the drying condition of 105 ℃, dry in the air to the paper that obtains high whiteness after room temperature.
Claims (2)
1. one kind is improved fluorescent whitening agent and brightens the method for efficiency at paper surface, it is characterized in that comprising the steps:
(1), in the liquid fluorescent whitening agent APC of 10-40%, by mechanical agitation, add the disperse violet of 0.01-6%, 0.01-4.0% dispersed blue dye to be mixed with compositions of fluorescent whitening agents;
(2) take again the kaolin of 10-30% part, the calcium carbonate of 5-15%, the benzene emulsion that adds 5-15%, the PVA aqueous solution 50-75% that adds 0.01-3% after stirring, the compositions of fluorescent whitening agents 1-5% that adds again step (1) to prepare, carry out surface-coated at the paper surface of manufacturing paper with pulp, dry under the drying condition of 105 ℃, dry in the air to the paper that obtains high whiteness after room temperature.
2. a kind of fluorescent whitening agent that improves according to claim 1 brightens the method for efficiency at paper surface, it is characterized in that: the aqueous solution that the PVA aqueous solution of described 0.01-3% is the degree of polymerization PVA that is 1500-2000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310422951.3A CN103469690B (en) | 2013-09-17 | 2013-09-17 | A kind ofly improve the method for fluorescent whitening agent at paper surface whitening effectiveness |
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| CN201310422951.3A CN103469690B (en) | 2013-09-17 | 2013-09-17 | A kind ofly improve the method for fluorescent whitening agent at paper surface whitening effectiveness |
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| CN103469690A true CN103469690A (en) | 2013-12-25 |
| CN103469690B CN103469690B (en) | 2015-11-18 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256651A (en) * | 2015-09-14 | 2016-01-20 | 山西青山化工有限公司 | Fluorescent whitening agent dispersion liquid used for paper coating whitening and preparation method therefor |
| CN105400229A (en) * | 2015-10-23 | 2016-03-16 | 山西青山化工有限公司 | Preparation method of liquid fluorescent whitening agent used for papermaking |
| CN103881415B (en) * | 2014-03-11 | 2016-04-13 | 苏州恒康新材料有限公司 | A kind of paper grade (stock) compositions of fluorescent whitening agents and preparation method thereof |
| JP2017057528A (en) * | 2015-09-17 | 2017-03-23 | 北越紀州製紙株式会社 | Coated paper for printing |
| CN108486954A (en) * | 2018-03-23 | 2018-09-04 | 陕西科技大学 | A kind of synthetic method of macromolecule/layered double hydroxide base fluorescent type paper surface sizing agent |
| CN111270561A (en) * | 2020-02-24 | 2020-06-12 | 亚太森博（山东）浆纸有限公司 | High-whiteness yellowing-resistant coated white cardboard and preparation method thereof |
| CN116043612A (en) * | 2023-01-03 | 2023-05-02 | 江苏博汇纸业有限公司 | High-whiteness coated white cardboard and preparation method thereof |
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| WO2012155378A1 (en) * | 2011-05-17 | 2012-11-22 | 天津科技大学 | High whiteness coated paper made form midium whiteness base paper and coating process and coating material thereof |
| CN102898870A (en) * | 2012-10-20 | 2013-01-30 | 山西青山化工有限公司 | Fluorescent whitening agent composition for cotton cloth |
| CN102964871A (en) * | 2012-11-20 | 2013-03-13 | 浙江山川轻纺科技有限公司 | Coloring agent used for dyeing and printing polyester cotton and pure cotton fabric and production process thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103881415B (en) * | 2014-03-11 | 2016-04-13 | 苏州恒康新材料有限公司 | A kind of paper grade (stock) compositions of fluorescent whitening agents and preparation method thereof |
| CN105256651A (en) * | 2015-09-14 | 2016-01-20 | 山西青山化工有限公司 | Fluorescent whitening agent dispersion liquid used for paper coating whitening and preparation method therefor |
| JP2017057528A (en) * | 2015-09-17 | 2017-03-23 | 北越紀州製紙株式会社 | Coated paper for printing |
| CN105400229A (en) * | 2015-10-23 | 2016-03-16 | 山西青山化工有限公司 | Preparation method of liquid fluorescent whitening agent used for papermaking |
| CN108486954A (en) * | 2018-03-23 | 2018-09-04 | 陕西科技大学 | A kind of synthetic method of macromolecule/layered double hydroxide base fluorescent type paper surface sizing agent |
| CN111270561A (en) * | 2020-02-24 | 2020-06-12 | 亚太森博（山东）浆纸有限公司 | High-whiteness yellowing-resistant coated white cardboard and preparation method thereof |
| CN116043612A (en) * | 2023-01-03 | 2023-05-02 | 江苏博汇纸业有限公司 | High-whiteness coated white cardboard and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN103469690B (en) | 2015-11-18 |
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