CN103352395B - Add to fill out paper production technology and add and fill out paper - Google Patents
Add to fill out paper production technology and add and fill out paper Download PDFInfo
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- CN103352395B CN103352395B CN201310273786.XA CN201310273786A CN103352395B CN 103352395 B CN103352395 B CN 103352395B CN 201310273786 A CN201310273786 A CN 201310273786A CN 103352395 B CN103352395 B CN 103352395B
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Abstract
The present invention relates to one to add and fill out paper production technology, it comprises the steps: papermaking filler, cationic starch and cationic starch crosslinking agent three to carry out mixing to prepare mixture system; Regulate the temperature of described mixture system, make described cationic starch gelatinization, be cross-linked to wrap up described filler grain; The above-mentioned mixture system completing filler grain parcel is mixed with paper pulp fiber, to be mixed with paper pulp; Described paper pulp is used to manufacture paper with pulp into paper.The invention still further relates to use above-mentioned add fill out that paper production technology produces add and fill out paper.Compared with prior art, provided by the present invention this adds to be filled out paper production technology and can overcome the impact of filler on paper strength, allows to add more filler and replaces paper pulp fiber.According to provided by the present invention this add fill out that paper production technology produces add and fill out paper, it has the low and advantage that intensity is good of cost.
Description
Technical field
The present invention relates to one to add to fill out paper production technology and add and fill out paper.
Background technology
In paper industry, in order to save slurry, reduce costs, the mode of usual employing adds filler in paper, so not only can reach saving slurry, the object reduced the cost, but also the serviceability of paper can be improved, the Packed paper of this interpolation is collectively referred to as to add fills out paper.
For most of paper kind, filler has become an important composition composition of paper.Filler relatively more conventional at present comprises talcum powder, titanium dioxide, kaolin, calcium carbonate, mineral fibres etc., but all can there is following problem adding after in paper in these fillers: on the one hand, after filler interpolation enters paper pulp, due to the physical characteristic of self, filler self not only cannot and paper fibre between formed and effectively combine, but also the adhesion can destroyed between paper fibre, thus cause the intensity of the paper of manufacturing paper with pulp out lower than the intensity of not adding the paper that filler manufactures paper with pulp out; On the other hand, the particle diameter of papermaking filler particle is all very little, average particle diameter only has several microns, and because the adhesion between filler and paper fibre is very poor, in the process of paper making, filler easily through forming web along with plain boiled water run off, cause the retention of filler in paper not high, so not only can not reach the object of adding filler, and a large amount of fillers is retained in white-water system, also can have a negative impact to overall green end.
Therefore, how can improve and add the retention of filling out filler in paper and fill out paper to make to add 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 paper production technology and add and fill out paper in fact for necessary.
One adds fills out paper production technology, and it comprises the steps: papermaking filler, cationic starch and cationic starch crosslinking agent three to carry out mixing to prepare mixture system; Regulate the temperature of described mixture system, make described cationic starch gelatinization, be cross-linked to wrap up described filler grain; The above-mentioned mixture system completing 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; The process for preparation of described mixture system comprises the steps: first to be mixed in the form of a powder respectively with papermaking filler by cationic starch, obtains mixture; Cationic starch cross-linking agent aqueous solution is added again afterwards, to be mixed with mixture system in described mixture; The temperature reconciling described mixture system is that the water by adding 50 ~ 100 DEG C in described mixture system system realizes.
Adopt above-mentioned add fill out that paper production technology produces add and fill out a paper, it comprises paper matrix, in described paper matrix, be dispersed with filler grain, and the outer surface of described filler grain is enclosed with the cationic starch in cross-linked structure.
Compared with prior art, provided by the present invention this adds to be filled out paper production technology and wraps up filler grain by using the cationic starch after gelatinization, the cationic starch simultaneously utilizing cationic starch crosslinking agent to make to be wrapped in filler grain surface occurs crosslinked, mode by such: first, cationic starch after gelatinization effectively can wrap up filler grain, the particle diameter of filler grain is increased, reduces the possibility that filler grain is missed because particle diameter is little from forming web; The second, utilize cationic starch crosslinking agent to make to be wrapped in the cationic starch generation cross-linking reaction on filler grain surface, thus form the cross-linked network of difficult drop-off on filler grain surface, enhance the stability that described cationic starch wraps up filler grain; 3rd, due to the parcel of cationic starch, the appearance of filler grain is worn a large amount of positive charge, substantially increases the binding ability between filler grain and electronegative paper pulp fiber thus, effectively raises the retention of filler grain on paper pulp fiber; 4th, just because of having stronger adhesion between filler grain and paper pulp fiber, thus overcome filler grain and paper pulp fiber adhesion difference in prior art and cause the defect that paper strength declines, improve the fracture length of paper.In addition, can make, between filler grain and paper pulp, there is stronger adhesion because provided by the present invention this adds the production technology of filling out paper, to overcome the impact of filler on paper strength, thus mean that provided by the present invention this adds the production technology of filling out paper and can allow to add more filler to replace paper pulp fiber, thus reduction adds the production cost filling out paper further.According to provided by the present invention this add fill out that paper production technology produces add and fill out paper, it has the low and advantage that intensity is good of cost.
Accompanying drawing explanation
Fig. 1 fills out paper production technological process adding of providing of embodiment of the present invention.
Fig. 2 be according to Fig. 1 add fill out paper production technology produce add the structural representation filling out paper.
Main element symbol description
Add and fill out paper 100
Paper matrix 10
Filler grain 20
Cationic starch 30
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Refer to Fig. 1, what embodiment of the present invention provided 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 carried out mixing to prepare mixture system;
In the present embodiment, the concrete steps preparing described mixture system are: mixed in the form of a powder respectively with filler grain by cationic starch, 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 preparing described mixture system can also be: first papermaking filler and cationic starch solution are carried out being mixed to form filler-cationic starch mixed liquor; Backward described filler-cationic starch mixed liquor in add cationic starch cross-linking agent aqueous solution, to be mixed with mixture system.
In the present invention, the main purpose of mixture system described in papermaking filler, cationic starch and cationic starch crosslinking agent three mixed preparing is utilized to be make cationic starch just can evenly, effectively be wrapped in around papermaking filler before gelatinization occurs, being cross-linked, like this, in cationic starch generation gelatinization, crosslinked process, just can make generation gelatinization, surface that crosslinked cationic starch is effectively attached to filler grain.Therefore, understandable, in the present invention, the step preparing described mixture system is not limited to the said method that embodiment of the present invention provides, as long as can by papermaking filler, cationic starch and cationic starch crosslinking agent three Homogeneous phase mixing.
Preferably, in described mixture system, the quality of described cationic starch and filler grain is 1:10 ~ 100 than scope, and that is, 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 is that mode by stirring is mixed after mixing with filler grain.
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 to comprise in the paper industries such as talcum powder, titanium dioxide, kaolin, calcium carbonate, mineral fibres the papermaking filler commonly used, described cationic starch crosslinking agent comprises the material that epoxychloropropane, calgon, phosphorus oxychloride, formaldehyde etc. can make cationic starch generation cross-linking reaction.
Preferably, in the present embodiment, described filler grain is grinding calcium carbonate (also known as powdered whiting or GCC), and this cationic starch crosslinking agent described is epoxychloropropane.
(2) regulate the temperature of described mixture system, make described cationic starch gelatinization, be cross-linked to wrap up described filler grain;
In the present embodiment, be that water by adding 50 ~ 100 DEG C in described first mixture system B regulates the temperature of described first mixture system B.
Concrete, preferably, under the condition stirred, in described first mixture system B, add the water of 70 ~ 90 DEG C, to be mixed with the second mixture system C of 15% ~ 20%.In described second mixture system C, because the temperature of system raises, cause cationic starch generation gelatinization, be cross-linked with the surface being wrapped in filler grain.
Can play following effect by regulating the temperature promoting described first mixture system B: the first, make cationic starch gelatinization, what the cationic starch after gelatinization can be good is attached on the outer surface of filler grain, and the particle diameter of filler grain is increased; Second, owing to including cationic starch crosslinking agent in mixture system, under the effect of cationic starch crosslinking agent, can cross-linking reaction be there is in the cationic starch being wrapped in filler grain surface, thus the cross-linked network of difficult drop-off is formed on filler grain surface, enhance the stability that described cationic starch wraps up filler grain; 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, the most of outer surface originally in electroneutral filler grain can be made to become positively charged lotus, thus make filler grain can and paper pulp fiber between form stronger adhesion, considerably increase the adhesive force of filler grain to paper pulp fiber, effectively raise the retention of filler grain on paper pulp fiber.
Understandable, regulate the mode of the temperature of described first mixture system B can also be by realizing the direct-fired mode of described first mixture system B.
(3) the filler mixed liquor obtained after step (2) is mixed with paper pulp fiber.
Preferably, before being mixed with paper pulp fiber by described filler mixed liquor, the step described filler mixed liquor being cooled to room temperature is also further comprised.
Understandable, described filler mixed liquor can be allocated according to production demands different in actual production from the mixed proportion of paper pulp fiber.
Preferably, described paper pulp fiber, before mixing with described filler mixed liquor, also have passed through defibrination process, increases the brooming effect of paper pulp fiber, and then improves the contact area of paper pulp fiber and filler grain.
Preferably, the retention of filler grain is have impact in order to avoid the poly-phenomenon of slurry concentration too high generation wadding, after described filler mixed liquor mixes with paper pulp fiber, need dilute to make the concentration of the Packed paper pulp of described mixing remain on certain level to it.
Preferably, after described filler mixed liquor mixes with paper pulp fiber, add water to its dilution to make the concentration of the Packed paper pulp of described mixing remain between 0.1% ~ 1.2%.
Preferably, in order to improve the retention of filler grain further, retention agent can be added to improve keeping of filler grain in the Packed pulping system of above-mentioned mixing, 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 above-mentioned system, electronegative fiber molecule can be intertwined by macromolecular cationic polyacrylamide, thus reaches the object improving filler retention.
(4) the Packed paper pulp of mixing that step (3) obtains is manufactured paper with pulp into paper.
Following table is on the basis of normal paper production flow process, fix other papermaking variables, adopt existing adding to fill out paper production technology, fill out according to adding of providing of the invention described above various preferably the adding provided in paper production technology and embodiment of the present invention and fill out paper production technology to carry out paper making respectively, finally measure the data obtained after finished product attaches the performance indications such as filler retention, content of ashes and fracture length in paper respectively.
Can obviously be found out by the experimental data of upper table, compared with prior art, according to provided by the present invention add the production technology of filling out paper manufacture paper with pulp out add in the performance parameters such as the fracture length filling out the content of ashes of paper in the retention, paper of filler and paper and all have significant lifting.That is, the present invention is wrapped up filler grain by the cationic starch after use gelatinization, the cationic starch simultaneously utilizing cationic starch crosslinking agent to make to be wrapped in filler grain surface occurs crosslinked, mode by such: first, cationic starch after gelatinization effectively can wrap up filler grain, the particle diameter of filler grain is increased, reduces the possibility that filler grain is missed because particle diameter is little from forming web; The second, utilize cationic starch crosslinking agent to make to be wrapped in the cationic starch generation cross-linking reaction on filler grain surface, thus form the cross-linked network of difficult drop-off on filler grain surface, enhance the stability that described cationic starch wraps up filler grain; 3rd, due to the parcel of cationic starch, the appearance of filler grain is worn a large amount of positive charge, substantially increases the binding ability between filler grain and electronegative paper pulp fiber thus, effectively raises the retention of filler grain on paper pulp fiber; 4th, just because of having stronger adhesion between filler grain and paper pulp fiber, thus overcome filler grain and paper pulp fiber adhesion difference in prior art and cause the defect that paper strength declines, improve the fracture length of paper.
In addition, can make, between filler grain and paper pulp, there is stronger adhesion because provided by the present invention this adds the production technology of filling out paper, to overcome the impact of filler on paper strength, this just means, provided by the present invention this adds the production technology of filling out paper and can allow to add more filler to replace paper pulp fiber, thus reduction adds the production cost filling out paper further.
Refer to Fig. 2, present invention also offers a kind of adopt above-mentioned add fill out that paper production technology produces add and fill out paper 100, it comprises paper matrix 10 and is dispersed in the filler grain 20 in this paper matrix 10, and the outer surface of described filler grain 20 is enclosed with the cationic starch 30 in cross-linked structure.
Compared with prior art, provided by the present invention this adds to be filled out paper production technology and can overcome the impact of filler on paper strength, allows to add more filler and replaces paper pulp fiber.According to provided by the present invention this add fill out that paper production technology produces add and fill out paper, it has the low and advantage that intensity is good of cost.
In addition, those skilled in the art also can do other change in spirit of the present invention.Therefore these changes done according to the present invention's spirit, all should be included within the present invention's scope required for protection.
Claims (11)
1. add and fill out a paper production technology, it is characterized in that comprising the steps:
Papermaking filler, cationic starch and cationic starch crosslinking agent three are carried out mixing to prepare mixture system;
Regulate the temperature of described mixture system, make described cationic starch gelatinization, be cross-linked to wrap up described filler grain;
The above-mentioned mixture system completing filler grain parcel is mixed with paper pulp fiber, to be mixed with paper pulp; And
Described paper pulp is used to manufacture paper with pulp into paper;
The process for preparation of described mixture system comprises the steps: first to be mixed in the form of a powder respectively with papermaking filler by cationic starch, obtains mixture; Cationic starch cross-linking agent aqueous solution is added again afterwards, to be mixed with mixture system in described mixture;
The temperature reconciling described mixture system is that the water by adding 50 ~ 100 DEG C in described mixture system realizes.
2. add as claimed in claim 1 and fill out paper production technology, it is characterized in that: the quality that described cationic starch and papermaking filler carry out mixing is 1:10 ~ 100 than scope.
3. add as claimed in claim 1 and fill out paper production technology, it is characterized in that: the addition of described cationic starch crosslinking agent accounts for 15% ~ 60% of described cationic starch gross mass.
4. add as claimed in claim 1 and fill out paper production technology, it is characterized in that: described cationic starch crosslinking agent be selected from epoxychloropropane, calgon, phosphorus oxychloride, formaldehyde one of them.
5. add as claimed in claim 1 and fill out paper production technology, it is characterized in that: before the described mixture system completing filler grain parcel is mixed with paper pulp fiber, also comprise the described step completing mixture system that filler grain wraps up and lower the temperature.
6. add as claimed in claim 1 and fill out paper production technology, it is characterized in that: before being mixed with paper pulp fiber by the described mixture system completing filler grain parcel, also comprise the step of described paper pulp fiber being carried out to defibrination process.
7. add as claimed in claim 1 and fill out paper production technology, it is characterized in that: before paper manufactured paper with pulp into by the described paper pulp of use, also comprise and the step making its concentration range remain on 0.1% ~ 1.2% is diluted to described paper pulp.
8. add as claimed in claim 1 and fill out paper production technology, it is characterized in that: before paper manufactured paper with pulp into by the described paper pulp of use, also comprise the step of adding retention agent in described paper pulp.
9. add as claimed in claim 8 and fill out 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.
10. add as claimed in claim 8 and fill out paper production technology, it is characterized in that: described retention agent is cationic polyacrylamide.
11. 1 kinds adopt add as claimed in claim 1 fill out that paper production technology produces add and fill out paper, it comprises paper matrix, is dispersed with filler grain, it is characterized in that in described paper matrix: the outer surface of described filler grain is enclosed with the cationic starch in 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 CN103352395A (en) | 2013-10-16 |
| CN103352395B true CN103352395B (en) | 2015-08-12 |
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| 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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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 |
|---|
| 淀粉包覆PCC在造纸中的制备与应用研究;韩晨;《南京林业大学硕士学位论文》;20100215;全文 * |
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