CN103352395A - Production process for filled paper and filled paper - Google Patents
Production process for filled paper and filled paper Download PDFInfo
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- CN103352395A CN103352395A CN201310273786XA CN201310273786A CN103352395A CN 103352395 A CN103352395 A CN 103352395A CN 201310273786X A CN201310273786X A CN 201310273786XA CN 201310273786 A CN201310273786 A CN 201310273786A CN 103352395 A CN103352395 A CN 103352395A
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Abstract
The invention relates to a production process for filled paper. The production process comprises the following steps: mixing a papermaking filling material, cationic starch and a cationic starch cross-linking agent so as to prepare a mixed liquor system; adjusting the temperature of the mixed liquor system to allow the cationic starch to be gelatinzed and cross-linked so as to realize wrapping of a filling material particle; mixing the mixed liquor system in which wrapping of the filling material particle is finished with a pulp fiber so as to prepare paper pulp; and subjecting the paper pulp to paper making so as to obtain finished paper. The invention also relates to the filled paper produced by using the production process. Compared with the prior art, the production process for the filled paper provided by the invention has the following advantages: influence of the filling material on paper strength can be overcome, and more filling materials can be added to replace the pulp fiber. The filled paper produced by using the production process has the advantages of low cost and high strength.
Description
Technical field
The present invention relates to a kind of add to fill out the paper production technology and add fill out paper.
Background technology
In paper industry, in order to save slurry, reduce cost, usually the mode that adopts is to add filler in paper, so not only can reach the saving slurry, the purpose that reduces the cost, but also can improve the serviceability of paper, the Packed paper of this interpolation is collectively referred to as to add fills out paper.
For most of paper kinds, filler has become an important composition composition of paper.Filler relatively more commonly used comprises talcum powder, titanium dioxide, kaolin, calcium carbonate, mineral fibres etc. at present, but these fillers all following problem can occur after in adding paper: on the one hand, after the filler interpolation enters paper pulp, because the physical characteristic of self, filler self not only can't and paper fibre between form effective combination, but also can destroy adhesion between the paper fibre, thereby cause the intensity of the paper of manufacturing paper with pulp out to be lower than not adding the intensity of the paper that filler manufactures paper with pulp out; On the other hand, the particle diameter of papermaking filler particle is all very little, the average particle diameter only has several microns, and because the adhesion between filler and the paper fibre is very poor, in the process of paper making, filler is easy to pass forming web and along with plain boiled water runs off, cause the retention of filler in paper not high, so not only can not reach the purpose of adding filler, and a large amount of fillers is retained in the white-water system, also can has a negative impact to whole green end.
Therefore, how can improve and add the retention of filling out filler in the paper so that add and fill out paper to have good intensity be one of target of laying siege to of industry.
Summary of the invention
In view of this, provide high the adding of a kind of filler retention to fill out the paper production technology and add and fill out paper in fact for necessary.
A kind of adding, filled out the paper production technology, and it comprises the steps: papermaking filler, cationic starch and cationic starch crosslinking agent three are mixed to prepare mixture system; Regulate the temperature of described mixture system, make described cationic starch gelatinization, crosslinked so that described filler grain is wrapped up; The above-mentioned mixture system of finishing the filler grain parcel is mixed with paper pulp fiber, to be mixed with paper pulp; And use described paper pulp to manufacture paper with pulp into paper.
A kind ofly adopt above-mentioned adding to fill out adding that the paper production technology produces and fill out paper, it comprises the paper substrate body, is dispersed with filler grain in described paper substrate body, and the outer surface of described filler grain is enclosed with the cationic starch that is cross-linked structure.
Compared with prior art, provided by the present invention this adds fills out the paper production technology by coming filler grain is wrapped up with the cationic starch after the gelatinization, the cationic starch that utilizes simultaneously the cationic starch crosslinking agent to make to be wrapped in the filler grain surface occurs crosslinked, by such mode: first, cationic starch after the gelatinization can effectively wrap up filler grain, so that the particle diameter of filler grain increases, the possibility that has reduced filler grain and miss from forming web because particle diameter is little; The second, the cationic starch generation cross-linking reaction of utilizing the cationic starch crosslinking agent to make to be wrapped in the filler grain surface, thus form the cross-linked network of difficult drop-off on the filler grain surface, strengthened described cationic starch to the stability of filler grain parcel; The 3rd, because the parcel of cationic starch, so that the appearance of filler grain has been worn a large amount of positive charges, greatly improved thus the binding ability between filler grain and the electronegative paper pulp fiber, effectively raise the retention of filler grain on paper pulp fiber; The 4th, just because of having stronger adhesion between filler grain and the paper pulp fiber, thereby overcome the poor and defective that causes the paper strength to descend of filler grain and paper pulp fiber adhesion in the prior art, improved the fracture length of paper.In addition, because provided by the present invention this adds the production technology of filling out paper can be so that have stronger adhesion between filler grain and the paper pulp, to overcome filler to the impact of paper strength, thereby mean that provided by the present invention this adds the production technology of filling out paper and can allow to add more filler and replace paper pulp fiber, add the production cost of filling out paper thereby further reduce.Add according to provided by the present invention this and to fill out adding that the paper production technology produces and fill out paper, it has the advantage that cost is low and intensity is good.
Description of drawings
Fig. 1 fills out the paper production technological process at embodiment of the present invention adding of providing.
Fig. 2 is the structural representation of filling out paper that adds of filling out the production of paper production technology according to adding of Fig. 1.
The main element symbol description
| Add and fill out |
100 |
| The |
10 |
| |
20 |
| |
30 |
The following specific embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
The specific embodiment
See also Fig. 1, embodiment of the present invention provides adds the production technology of filling out paper, and it comprises the steps:
(1) papermaking filler, cationic starch and cationic starch crosslinking agent three are mixed to prepare mixture system;
In the present embodiment, the concrete steps of preparing described mixture system are: cationic starch is mixed with the form of powder respectively with filler grain, obtain mixture A; Then in described mixture A, add a certain amount of cationic starch cross-linking agent aqueous solution, obtain the first mixture system B.
In other embodiment of the present invention, the step of preparing described mixture system can also be: first with papermaking filler and cationic starch solution mixing formation filler-cationic starch mixed liquor; In described filler-cationic starch mixed liquor, add the cationic starch cross-linking agent aqueous solution afterwards, to be mixed with mixture system.
In the present invention, utilize the main purpose of papermaking filler, cationic starch and the described mixture system of cationic starch crosslinking agent three's mixed preparing to make cationic starch around gelatinization occurs, just can evenly, effectively being wrapped in papermaking filler before crosslinked, like this, in cationic starch generation gelatinization, crosslinked process, just can make gelatinization occurs, crosslinked cationic starch effectively is attached to the surface of filler grain.Therefore, understandable, in the present invention, the step of preparing described mixture system is not limited to the said method that embodiment of the present invention provides, as long as papermaking filler, cationic starch and cationic starch crosslinking agent three evenly can be mixed.
Preferably, in described mixture system, described cationic starch is 1:10 ~ 100 with the quality of filler grain than scope, that is to say, can the arrange in pairs or groups filler grain of 10 ~ 100 parts by mass of the cationic starch of 1 parts by mass mixes.
Preferably, in the present embodiment, the mixing match of described cationic starch and filler grain is 1:10.
Preferably, in the present embodiment, described cationic starch be that mode by stirring mixes it after filler grain mixes.
Preferably, in described mixture system, the addition of described cationic starch crosslinking agent accounts for 15% ~ 60% of described cationic starch gross mass.
Preferably, in the present embodiment, described cationic starch crosslinking agent accounts for 15% of cationic starch gross mass.
In the present invention, described filler grain comprises the papermaking filler of being commonly used in the paper industries such as talcum powder, titanium dioxide, kaolin, calcium carbonate, mineral fibres, and described cationic starch crosslinking agent comprises that epoxychloropropane, calgon, phosphorus oxychloride, formaldehyde etc. can make the material of cationic starch generation cross-linking reaction.
Preferably, in the present embodiment, described filler grain is grinding calcium carbonate (matter of weighing again calcium carbonate or GCC), and described this cationic starch crosslinking agent is epoxychloropropane.
(2) temperature of the described mixture system of adjusting makes described cationic starch gelatinization, crosslinked so that described filler grain is wrapped up;
In the present embodiment, be the temperature of regulating described the first mixture system B by the water that in described the first mixture system B, adds 50 ~ 100 ℃.
Concrete, preferred, under the condition that stirs, add 70 ~ 90 ℃ water in described the first mixture system B, to be mixed with the second mixture system C of 15% ~ 20%.In described the second mixture system C, because the temperature of system raises, cause cationic starch generation gelatinization, crosslinked to be wrapped in the surface of filler grain.
Can play following effect by regulating the temperature that promotes described the first mixture system B: the first, make the cationic starch gelatinization, on the outer surface that is attached to filler grain that the cationic starch after the gelatinization can be good, so that the particle diameter of filler grain increases; Second, owing to include the cationic starch crosslinking agent in the mixture system, under the effect of cationic starch crosslinking agent, cross-linking reaction can occur in the cationic starch that is wrapped in the filler grain surface, thereby form the cross-linked network of difficult drop-off on the filler grain surface, strengthened described cationic starch to the stability of filler grain parcel; The 3rd, because paper pulp fiber is with stronger negative electrical charge, after the outer surface of filler grain has wrapped up the cationic starch with cross-linked network, meeting is so that originally be most of outer surface of electroneutral filler grain lotus that becomes positively charged, thereby so that filler grain can and paper pulp fiber between form stronger adhesion, greatly increase the adhesive force of filler grain to paper pulp fiber, effectively raised the retention of filler grain on paper pulp fiber.
Understandable, the mode of regulating the temperature of described the first mixture system B can also be by the direct-fired mode of described the first mixture system B is realized.
(3) will mix with paper pulp fiber through resulting filler mixed liquor after the step (2).
Preferably, with described filler mixed liquor with before paper pulp fiber mixes, also further comprise the step that described filler mixed liquor is cooled to room temperature.
Understandable, described filler mixed liquor can be allocated according to production demands different in the actual production from the mixed proportion of paper pulp fiber.
Preferably, described paper pulp fiber has also passed through the defibrination processing with before described filler mixed liquor mixes, and increases the brooming effect of paper pulp fiber, and then improves the contact area of paper pulp fiber and filler grain.
Preferably, affected the retention of filler grain for fear of the slurry concentration poly-phenomenon of too high generation wadding,, need dilute so that the concentration of the Packed paper pulp of described mixing remains on certain level it with after paper pulp fiber mixes at described filler mixed liquor.
Preferably, with after paper pulp fiber mixes, add water to its dilution so that the concentration of the Packed paper pulp of described mixing remains between 0.1% ~ 1.2% at described filler mixed liquor.
Preferably, in order further to improve the retention of filler grain, can in the Packed paper pulp system of above-mentioned mixing, add retention agent to improve keeping of filler grain, in the present embodiment, described retention agent is cationic polyacrylamide, and the addition of described cationic polyacrylamide accounts for 0.02% ~ 0.05% of described paper pulp fiber oven dry stock.After adding cationic polyacrylamide in the above-mentioned system, macromolecular cationic polyacrylamide can be intertwined electronegative fiber molecule, thereby reaches the purpose that improves filler retention.
(4) the Packed paper pulp of the resulting mixing of step (3) is manufactured paper with pulp into paper.
Following table is on the basis of normal paper production flow process, fix other papermaking parameter, adopt respectively existing adding to fill out the paper production technology, fill out provide in paper production technology and the embodiment of the present invention various according to the invention described above adding of providing and preferably add and fill out the paper production technology and carry out paper making, measure respectively at last finished product and attach resulting data after the performance indications such as filler retention, content of ashes and fracture length in the paper.
Experimental data by upper table can obviously be found out, compared with prior art, fill out paper and on the performance parameters such as fracture length of the retention of filler, content of ashes in the paper and paper, significant lifting is arranged all according to adding of adding that the production technology of filling out paper manufactures paper with pulp out provided by the present invention.That is to say, the present invention is by coming filler grain is wrapped up with the cationic starch after the gelatinization, the cationic starch that utilizes simultaneously the cationic starch crosslinking agent to make to be wrapped in the filler grain surface occurs crosslinked, by such mode: first, cationic starch after the gelatinization can effectively wrap up filler grain, so that the particle diameter of filler grain increases, the possibility that has reduced filler grain and miss from forming web because particle diameter is little; The second, the cationic starch generation cross-linking reaction of utilizing the cationic starch crosslinking agent to make to be wrapped in the filler grain surface, thus form the cross-linked network of difficult drop-off on the filler grain surface, strengthened described cationic starch to the stability of filler grain parcel; The 3rd, because the parcel of cationic starch, so that the appearance of filler grain has been worn a large amount of positive charges, greatly improved thus the binding ability between filler grain and the electronegative paper pulp fiber, effectively raise the retention of filler grain on paper pulp fiber; The 4th, just because of having stronger adhesion between filler grain and the paper pulp fiber, thereby overcome the poor and defective that causes the paper strength to descend of filler grain and paper pulp fiber adhesion in the prior art, improved the fracture length of paper.
In addition, because provided by the present invention this adds the production technology of filling out paper can be so that have stronger adhesion between filler grain and the paper pulp, to overcome filler to the impact of paper strength, this just means, provided by the present invention this adds the production technology of filling out paper can be allowed to add more filler and replace paper pulp fiber, adds the production cost of filling out paper thereby further reduce.
See also Fig. 2, the present invention also provides a kind of and has adopted above-mentioned adding to fill out adding that the paper production technology produces and fill out paper 100, it comprises paper substrate body 10 and is dispersed in filler grain 20 in this paper substrate body 10, is enclosed with the cationic starch 30 that is cross-linked structure at the outer surface of described filler grain 20.
Compared with prior art, provided by the present invention this adds to be filled out the paper production technology and can overcome filler to the impact of paper strength, allows to add more filler and replaces paper pulp fiber.Add according to provided by the present invention this and to fill out adding that the paper production technology produces and fill out paper, it has the advantage that cost is low and intensity is good.
In addition, those skilled in the art also can do other variation in spirit of the present invention.So the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (15)
1. one kind adds and fills out the paper production technology, it is characterized in that comprising the steps:
Papermaking filler, cationic starch and cationic starch crosslinking agent three are mixed to prepare mixture system;
Regulate the temperature of described mixture system, make described cationic starch gelatinization, crosslinked so that described filler grain is wrapped up;
The above-mentioned mixture system of finishing the filler grain parcel is mixed with paper pulp fiber, to be mixed with paper pulp; And
Use described paper pulp to manufacture paper with pulp into paper.
2. as claimed in claim 1 adding, filled out the paper production technology, it is characterized in that, the process for preparation of described mixture system comprises the steps: first cationic starch to be mixed with the form of powder respectively with papermaking filler, obtains mixture; In described mixture, add the cationic starch cross-linking agent aqueous solution more afterwards, to be mixed with mixture system.
3. as claimed in claim 1 adding, filled out the paper production technology, it is characterized in that, the process for preparation of described mixture system comprises the steps: first with papermaking filler and cationic starch solution mixing formation filler-cationic starch mixed liquor; In described filler-cationic starch mixed liquor, add the cationic starch cross-linking agent aqueous solution afterwards, to be mixed with mixture system.
4. fill out the paper production technology such as claim 1 ~ 3 each described adding, it is characterized in that: the quality that described cationic starch mixes with papermaking filler is 1:10 ~ 100 than scope.
5. fill out the paper production technology such as claim 1 ~ 3 each described adding, it is characterized in that: the addition of described cationic starch crosslinking agent accounts for 15% ~ 60% of described cationic starch gross mass.
6. fill out the paper production technology such as claim 1 ~ 3 each described adding, it is characterized in that: described cationic starch crosslinking agent be selected from epoxychloropropane, calgon, phosphorus oxychloride, formaldehyde one of them.
7. fill out the paper production technology such as claim 1 ~ 3 each described adding, it is characterized in that: the temperature of reconciling described mixture system is to realize by the water that adds 50 ~ 100 ℃ in described mixture system system.
8. fill out the paper production technology such as claim 1 ~ 3 each described adding, it is characterized in that: the temperature of reconciling described mixture system realizes by direct-fired mode.
9. fill out the paper production technology such as claim 1 ~ 3 each described adding, it is characterized in that: with the described mixture system of finishing filler grain parcel with before paper pulp fiber mixes, also comprise and finish the step that mixture system that filler grain wraps up is lowered the temperature to described.
10. fill out the paper production technology such as claim 1 ~ 3 each described adding, it is characterized in that: with the described mixture system of finishing the filler grain parcel with before paper pulp fiber mixes, also comprise the step of described paper pulp fiber being carried out the defibrination processing.
11. fill out the paper production technology such as claim 1 ~ 3 each described adding, it is characterized in that: using before described paper pulp manufactures paper with pulp into paper, also comprising described paper pulp diluted making its concentration range remain on 0.1% ~ 1.2% step.
12. fill out the paper production technology such as claim 1 ~ 3 each described adding, it is characterized in that: using before described paper pulp manufactures paper with pulp into paper, also comprising the step of adding retention agent in the described paper pulp.
13. as claimed in claim 12 adding filled out the paper production technology, it is characterized in that: the addition of described retention agent accounts for 0.02% ~ 0.05% of described paper pulp fiber oven dry stock.
14. as claimed in claim 12 adding filled out the paper production technology, it is characterized in that: described retention agent is cationic polyacrylamide.
15. one kind is adopted as claimed in claim 1 adding to fill out adding that the paper production technology produces and fill out paper, it comprises the paper substrate body, is dispersed with filler grain in described paper substrate body, and it is characterized in that: the outer surface of described filler grain is enclosed with the cationic starch that is cross-linked structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310273786.XA CN103352395B (en) | 2013-07-02 | 2013-07-02 | Add to fill out paper production technology and add and fill out paper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310273786.XA CN103352395B (en) | 2013-07-02 | 2013-07-02 | Add to fill out paper production technology and add and fill out paper |
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| Publication Number | Publication Date |
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| CN103352395A true CN103352395A (en) | 2013-10-16 |
| CN103352395B CN103352395B (en) | 2015-08-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368056A (en) * | 2016-08-26 | 2017-02-01 | 吴肖颜 | Calcium carbonate used for papermaking filler and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255666A (en) * | 2008-03-18 | 2008-09-03 | 陕西科技大学 | Method for manufacturing corpuscle filling material-starch complexes papermaking filling material |
| CN101570947A (en) * | 2009-05-25 | 2009-11-04 | 金东纸业（江苏）股份有限公司 | Method for applying starch modified stuffing in paper making |
| CN102817277A (en) * | 2011-06-09 | 2012-12-12 | 金东纸业（江苏）股份有限公司 | Body paper, making method of body paper, coated paper, making method of coated paper |
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2013
- 2013-07-02 CN CN201310273786.XA patent/CN103352395B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255666A (en) * | 2008-03-18 | 2008-09-03 | 陕西科技大学 | Method for manufacturing corpuscle filling material-starch complexes papermaking filling material |
| CN101570947A (en) * | 2009-05-25 | 2009-11-04 | 金东纸业（江苏）股份有限公司 | Method for applying starch modified stuffing in paper making |
| CN102817277A (en) * | 2011-06-09 | 2012-12-12 | 金东纸业（江苏）股份有限公司 | Body paper, making method of body paper, coated paper, making method of coated paper |
Non-Patent Citations (1)
| Title |
|---|
| 韩晨: "淀粉包覆PCC在造纸中的制备与应用研究", 《南京林业大学硕士学位论文》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368056A (en) * | 2016-08-26 | 2017-02-01 | 吴肖颜 | Calcium carbonate used for papermaking filler and preparation method thereof |
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| CN103352395B (en) | 2015-08-12 |
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