CN100590257C - Method for complexing composite calcium carbonate filling material - Google Patents
Method for complexing composite calcium carbonate filling material Download PDFInfo
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- CN100590257C CN100590257C CN200810026785A CN200810026785A CN100590257C CN 100590257 C CN100590257 C CN 100590257C CN 200810026785 A CN200810026785 A CN 200810026785A CN 200810026785 A CN200810026785 A CN 200810026785A CN 100590257 C CN100590257 C CN 100590257C
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- calcium carbonate
- aqueous solution
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- filler
- composite calcium
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Abstract
The invention discloses a composite method for a composite calcium carbonate filler, comprising following steps: dispersing calcium carbonate to be suspending liquid with a mass concentration of 1-50,mixing it evenly with high molecule aqueous solution with a mass concentration of 1-30to obtain a blend, the mass ratio of calcium carbonate to the high molecule aqueous solution is 50:1-1:5; mixingabove blend with acidic electrolyte solution, the volume ratio of the acidic electrolyte solution to the blend is 1:1-10:1, mixing evenly, standing, removing supernatant liquor, the white lower layermatter is the composite pearl filler. The invented method can increase fibrous hydrophilicity, increase filler retention, enhance paper intensity and whiteness, and saving fabric.
Description
Technical field
The invention belongs to the field of chemical synthesis, particularly be used for the complex method that paper making adds the composite calcium carbonate filler of the process of filling out.
Background technology
Calcium carbonate is a kind of Chinese white, is divided into winnofil (cry not only fine particle calcium carbonate or PCC) and grinding calcium carbonate (but also being coarse whiting or GCC) according to the production method difference, and they all are mainly adding of paper-making process to fill out mineral matter.Add the purpose of filling out and mainly contain and increase opacity and whiteness, improve into the paper printing performance, effect such as reduce production costs is the paper-making process important step.Because the refraction coefficient of winnofil is greater than coarse whiting, add use in filling out wider.
Paper plant directly adds pearl filler in slurry now, adds retention agent again, to reduce the loss of filler as far as possible.The one way retention of general pearl filler is about 14%, plain boiled water repeatedly after the reuse retention also only reach 40%, a large amount of fillers flow away with water, not only waste raw material, and also increase the water treatment load.Do not have adhesion between pearl filler and the fiber simultaneously, can not add and fill out too much, fall a mao phenomenon, weakened paper intensity, reduced paper quality otherwise be easy to generate dry linting behind the one-tenth paper.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide a kind of complex method of composite calcium carbonate filler.This composite calcium carbonate filler can increase filler retention, improves paper tensile strength and whiteness.
Purpose of the present invention is achieved through the following technical solutions: a kind of complex method of composite calcium carbonate filler, comprise the steps: calcium carbonate is disperseed into the dispersion suspension liquid of mass concentration 1～50%, with mass concentration be 1～30% macromolecule aqueous solution evenly after, obtain mixture, the mass ratio of the described calcium carbonate and the macromolecule aqueous solution is 50: 1～1: 5; Said mixture is mixed described acidic electrolyte solution with acidic electrolyte solution: the volume ratio of mixture is 1: 1～10: 1, stirs, and after leaving standstill, removes supernatant liquor, and lower floor's white layer material promptly is the composite calcium carbonate filler.
In order to realize the present invention better, the described macromolecule aqueous solution is the hydrophilic macromolecule aqueous solution, comprises the aqueous solution such as amidin, the oxidized starch aqueous solution, the cationic starch aqueous solution, polyvinyl alcohol water solution or shitosan.
Described acidic electrolyte solution comprises electrolyte solutions such as hydrochloric acid, sulfuric acid, nitric acid, ammonium chloride solution, sulfate of ammoniac solution or nitric acid ammonia.
The time of described stirring is 30 minutes, and rotating speed is 200 rev/mins.
Described composite calcium carbonate filler can directly substitute existing conventional fillers, can reduce the retention agent consumption, with bleached wood pulp (beating degree 45SR) the 80GSM handsheet of manufacturing paper with pulp, add above-mentioned composite calcium carbonate filler, the paper tensile strength increases by 50%, and filler retention improves 20%, and whiteness improves 5ISO.
The principle of the invention is as follows: calcium carbonate is a kind of mineral particle, and the surface does not have electrically, does not have substantially to interact with fiber.Calcium carbonate is carried out surface treatment, coat the high water material of one deck hydrophily, increase and interfibrous affinity, improve filler retention.Simultaneously in dry run, the polymer substance layer of coating also can each other or and fiber between further combined with, increase the paper tensile strength.
The present invention has following advantage and beneficial effect with respect to prior art:
The present invention coats the hydrophilic macromolecule material on the calcium carbonate surface, and the hydrophily of raising and fiber improves filler retention, increases into paper whiteness and tensile strength (the paper tensile strength increases by 10～150%), further saves fiber consumption.Calcium carbonate is mineral matter, and does not have adhesion between fiber; After coating one deck hydrophilic macromolecule material on the calcium carbonate surface, have a large amount of hydroxyls on the polymer substance, in water, can produce a large amount of hydrogen bonds with the great amount of hydroxy group on the fiber, simultaneously after dry dehydration, hydrogen bonded is more solid, fiber and polymer substance are together with each other, form the network structure of throwing the net; And calcium carbonate is included in polymer substance inside, realizes keeping of pearl filler.Composite calcium carbonate filler of the present invention can directly substitute conventional fillers, can reduce the retention agent consumption.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment, but embodiments of the present invention are not limited thereto.
Embodiment 1
The complex method of composite calcium carbonate filler, comprise the steps: that it is 1% dispersion suspension liquid that calcium carbonate is disperseed into mass concentration, with the mass concentration of abundant dissolving be after 1% the macromolecule aqueous solution (amidin) mixes, obtain mixture, the mass ratio of described calcium carbonate and amidin is 50: 1; Said mixture is mixed with acidic electrolyte solution sulfuric acid; Acidic electrolyte solution sulfuric acid: the volume ratio of mixture 5: 1, stirred 200 rev/mins of rotating speeds then 30 minutes, after leaving standstill a night, remove supernatant liquor, lower floor's white layer material promptly is the composite calcium carbonate filler, and the composite calcium carbonate filler that obtains is a naked eyes visible particle shape.In the paper of 80 grammes per square metres, add the composite calcium carbonate filler of the present invention of 15% (mass percent), the paper tensile strength increases by 10%.
Embodiment 2
The complex method of composite calcium carbonate filler, comprise the steps: that it is 50% dispersion suspension liquid that calcium carbonate is disperseed into mass concentration, with the mass concentration of abundant dissolving be after 30% the macromolecule aqueous solution (the oxidized starch aqueous solution) mixes, obtain mixture, the mass ratio of the described calcium carbonate and the oxidized starch aqueous solution is 10: 1; Mixture mixes with acidic electrolyte solution nitric acid ammonia solution, described nitric acid ammonia: the volume of mixture ratio is 1: 1, stirs, after leaving standstill then, remove supernatant liquor, lower floor's white layer material promptly is the composite calcium carbonate filler, and the composite calcium carbonate filler that obtains is a naked eyes visible particle shape.In the paper of 80 grammes per square metres, add the composite calcium carbonate filler of the present invention of 15% (mass percent), the paper tensile strength increases by 25%, and filler retention increases by 20%, and the paper whiteness increases 5ISO.
Embodiment 3
The complex method of composite calcium carbonate filler, comprise the steps: that it is 25% dispersion suspension liquid that calcium carbonate is disperseed into mass concentration, the mass concentration of pouring abundant dissolving into is 15% the macromolecule aqueous solution (chitosan aqueous solution), after mixing, obtain mixture, the mass ratio of described calcium carbonate and chitosan aqueous solution is 1: 5; Said mixture is poured in the acidic electrolyte solution ammonium chloride solution, described sal-ammoniac: the volume of mixture ratio is 10: 1, the limit bevelling stirs and (stirred 30 minutes, 200 rev/mins of rotating speeds), after leaving standstill a night, remove supernatant liquor, lower floor's white layer material promptly is the composite calcium carbonate filler, the composite calcium carbonate filler naked eyes visible particle shape that obtains.In the paper of 80 grammes per square metres, add the composite calcium carbonate filler of the present invention of 15% (mass percent), the paper tensile strength increases by 150%.
Embodiment 4
The complex method of composite calcium carbonate filler, comprise the steps: that it is 30% dispersion suspension liquid that calcium carbonate is disperseed into mass concentration, the mass concentration of pouring abundant dissolving into is 15% the macromolecule aqueous solution (the cationic starch aqueous solution), after mixing, obtain mixture, the mass ratio of the described calcium carbonate and the cationic starch aqueous solution is 20: 1; Said mixture is poured in the acidic electrolyte solution nitric acid, described nitric acid: the volume of mixture ratio is 3: 1, the limit bevelling stirs and (stirred 30 minutes, 200 rev/mins of rotating speeds), after leaving standstill a night, remove supernatant liquor, lower floor's white layer material promptly is the composite calcium carbonate filler, the composite calcium carbonate filler naked eyes visible particle shape that obtains.In the paper of 80 grammes per square metres, add the composite calcium carbonate filler of the present invention of 15% (mass percent), the paper tensile strength increases by 15%.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (2)
1, a kind of complex method of composite calcium carbonate filler, it is characterized in that comprising the steps: calcium carbonate is disperseed into the dispersion suspension liquid of mass concentration 1～50%, with mass concentration be 1～30% macromolecule aqueous solution evenly after, obtain mixture, the mass ratio of the described calcium carbonate and the macromolecule aqueous solution is 50: 1～1: 5; Said mixture is mixed described acidic electrolyte solution with acidic electrolyte solution: the volume ratio of mixture is 1: 1～10: 1, stirs, and after leaving standstill, removes supernatant liquor, and lower floor's white layer material promptly is the composite calcium carbonate filler;
The described macromolecule aqueous solution is the hydrophilic macromolecule aqueous solution;
The described hydrophilic macromolecule aqueous solution is amidin, polyvinyl alcohol water solution or chitosan aqueous solution;
Described acidic electrolyte solution is hydrochloric acid, sulfuric acid, nitric acid, ammonium chloride solution, ammonium sulfate or ammonium nitrate solution.
2, the complex method of a kind of composite calcium carbonate filler according to claim 1 is characterized in that: the time of described stirring is 30 minutes, and rotating speed is 200 rev/mins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810026785A CN100590257C (en) | 2008-03-14 | 2008-03-14 | Method for complexing composite calcium carbonate filling material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810026785A CN100590257C (en) | 2008-03-14 | 2008-03-14 | Method for complexing composite calcium carbonate filling material |
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| Publication Number | Publication Date |
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| CN101240515A CN101240515A (en) | 2008-08-13 |
| CN100590257C true CN100590257C (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810026785A Expired - Fee Related CN100590257C (en) | 2008-03-14 | 2008-03-14 | Method for complexing composite calcium carbonate filling material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073926A (en) * | 2012-12-24 | 2013-05-01 | 华泰集团有限公司 | Manufacturing method of cationic starch modified calcium carbonate filler |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103859576B (en) * | 2013-06-09 | 2016-06-29 | 广东金科再造烟叶有限公司 | A kind of production for tobacco sheets by paper making method keeps method with what improve pulp fiber and filler |
| CN113502688B (en) * | 2021-07-10 | 2022-10-04 | 杭州宏成纸业有限公司 | Transfer printing paper and preparation method thereof |
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2008
- 2008-03-14 CN CN200810026785A patent/CN100590257C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073926A (en) * | 2012-12-24 | 2013-05-01 | 华泰集团有限公司 | Manufacturing method of cationic starch modified calcium carbonate filler |
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| CN101240515A (en) | 2008-08-13 |
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