CN103966892A - Papermaking auxiliary agent, papermaking process and paper product - Google Patents
Papermaking auxiliary agent, papermaking process and paper product Download PDFInfo
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- CN103966892A CN103966892A CN201310047036.0A CN201310047036A CN103966892A CN 103966892 A CN103966892 A CN 103966892A CN 201310047036 A CN201310047036 A CN 201310047036A CN 103966892 A CN103966892 A CN 103966892A
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Abstract
The invention relates to a papermaking auxiliary agent mainly prepared by mixed crosslinking of a boron-containing compound and a cationic macromolecule. The paper auxiliary agent can remarkably improve the retention rate of a filler in a pulp stock. The invention also relates to a papermaking process adopting the papermaking auxiliary agent and a paper product produced by the papermaking process.
Description
Technical field
The present invention relates to a kind of paper making additive, paper technology and paper product.
Background technology
The production cost of the reduction paper continuing by improvement paper technology is the direction that field of papermaking is constantly pursued.To adding inorganic filler that cost is relatively cheap in slurry, to replace part paper pulp fiber be a kind of mode that reduces paper making cost extensively adopting at present.
But inorganic filler is after joining in paper pulp, because the adhesion between itself and fiber is lower, in paper-making process, the filler being added in paper pulp is easy to run off along with mthod of white water from paper making, stays only some filler in paper.Therefore, which kind of mode improving the retention of filler in paper-making process by is one of papermaking enterprise question of common concern.
Summary of the invention
In view of this, provide a kind of paper product that can improve paper making additive, the paper technology of filler retention and there is high filler content in fact for necessary.
A kind of paper making additive, described paper making additive is mainly mixed crosslinked forming with cation high molecular by boron-containing compound.
A kind of paper technology, it comprises the steps: boron-containing compound to mix with cation high molecular crosslinked with preparation paper making additive; Described paper making additive is added to comprise in Packed paper pulp and mix slurry with preparation; And utilize described mixing to starch the paper of manufacturing paper with pulp.
A kind of paper product, it comprises paper body, in described paper body, has boron-containing compound-cation high molecular cross-linking agent and filler, wherein, the content of described boron-containing compound-cation high molecular cross-linking agent is the 0.1%-15%wt of fiber oven-dry weight.
Compared with prior art, paper making additive provided by the present invention and use the paper technology of described paper making additive, it adopts boron-containing compound to mix and be cross-linked to prepare paper making additive with cation high molecular, and described paper making additive is joined and in paper pulp, prepares the mixed slurry for the paper of manufacturing paper with pulp.Mixed the crosslinked paper making additive forming with cation high molecular by boron-containing compound by using in paper pulp, can improve significantly the retention of filler in paper pulp.The paper product of manufacturing paper with pulp out according to paper technology provided by the present invention has good filler retention.
Detailed description of the invention
The paper making additive that embodiment of the present invention provides, it is mainly mixed crosslinked forming with cation high molecular by boron-containing compound.
In the present invention, described boron-containing compound comprises boric acid and metal borate mineral, concrete, and described boron-containing compound can be one or more in boric acid, Boratex, Firebrake ZB, borax, raphite, boromagnesite, ludwigite and boracite.
Described cation high molecular can be one or more in block, grafting and the derivative of cationic polysaccharide, amido high polymer, cationic polysaccharide and amido high polymer, wherein, described cationic polysaccharide comprises cationic cellulose and quaternary ammonium salt derivative, cation guar gum and quaternary ammonium salt derivative thereof, cationic starch, CATION sodium alginate and quaternary ammonium salt derivative, shitosan and quaternary ammonium salt derivative thereof etc., and described amido high polymer comprises cationic polyacrylamide, polyvinylamine, polymine.
Preferably, in the present embodiment, the molecular weight of described cation high molecular approximately 2,000 to 2,000,000, further, the molecular weight of described cation high molecular is 20,000 to 1,000,000.
Preferably, in the mixture of described boron-containing compound and cation high molecular, the quality of described boron-containing compound accounts for 0.1% to 15% of described cation high molecular quality.
Embodiment of the present invention also provides the paper technology that uses above-mentioned paper making additive, and it comprises the steps:
Boron-containing compound is mixed crosslinked with preparation paper making additive with cation high molecular;
In the present embodiment, under the condition of 20 ° of C to 110 ° of C, described boron-containing compound joins with the formation of solid and in the aqueous solution of described cation high molecular, prepares described paper making additive.
It should be noted that, carry out the temperature in mixed process at described boron-containing compound and cation high molecular, agitating modes etc. can be set according to actual needs, and described boron-containing compound and cation high molecular are before mutually mixing to prepare described paper making additive, described boron-containing compound and cation high molecular form does not separately have special restriction, both can solid-liquid, Gu Gu the mode of liquid-liquid mixes to prepare described paper making additive, certainly, in the process of the described paper making additive of preparation, can also comprise solvent and other functional papermaking medicament to interpolation in described paper making additive.
Described paper making additive is joined in paper pulp, mix slurry to prepare;
Understandable, in the present invention, do not have special restriction to the order of adding paper making additive and filler in described paper pulp, filler and described paper making additive can be added in paper pulp simultaneously, also can before described paper making additive adds, filler first be joined in described paper pulp, or again filler be joined in described paper pulp after described paper making additive adds.
Preferably, the addition of described paper making additive is 0.1% to 15% of described paper pulp oven dry stock.
Preferably, the addition of described filler is 50% to 300% of described paper pulp oven dry stock.
Utilize described mixing to starch the paper of manufacturing paper with pulp.
Understandable, utilizing described mixing slurry to manufacture paper with pulp before paper, also comprise to the step of adding starch and retention agent in described mixing slurry.
It should be noted that in the present invention, all there is no special restriction for kind, addition, the addition manner of filler, starch and retention agent, it all can be set according to actual needs.
Preferably, described starch cationic starch.
Preferably, the described retention agent Microparticle Retention System of one or more cationic polyelectrolytes and one or more anionic species composition of serving as reasons.
Above-mentioned paper technology provided by the present invention, its paper making additive that boron-containing compound and cation high molecular are mixed with adds in paper making pulp prepares mixed slurry, reaches with this object that promotes filler retention in mixed slurry.Why the paper making additive being mixed with by boron-containing compound and cation high molecular can significantly improve the retention of filler, its reason is: the boron-containing compounds such as borate are as conventional crosslinking agent, after mixing with cation high molecular, it can form boron-containing compound-cation high molecular cross-linked network with cation high molecular generation cross-linking reaction, after in the paper making additive of being prepared by boron-containing compound and cation high molecular is joined to paper pulp fiber, on the one hand, first boron-containing compound-cation high molecular cross-linked network that relative size is larger can be incorporated in fiber surface with the paper pulp fiber knot of electronegative property and form CATION point, these CATION points that are formed on fiber surface can effectively adsorb electronegative filler grains such as grinding calcium carbonates, like this, paper pulp fiber is firmly adsorbed on fiber surface by being formed on its surperficial CATION filler grain of naming a person for a particular job, on the other hand, because the particle diameter of filler grain is less, therefore be added to the layer structure inside that a filler grain part in paper pulp fiber can directly enter into fiber, and because the size of boron-containing compound-cation high molecular cross-linked network is relatively large, therefore boron-containing compound-cation high molecular cross-linked network is not easy to enter into the layer structure inside of fiber, and be the layer structure outside that absorption is wrapped in fiber, like this, within boron-containing compound-cation high molecular cross-linked network that the filler grain that enters into the layer structure inside of fiber will be adsorbed the layer structure outside that is wrapped in fiber is locked in the layer structure of fiber and be not easy out, therefore by the effect of above two aspects, the paper making additive being mixed with by boron-containing compound and cation high molecular can effectively promote the retention of filler in paper making pulp.
Below, be two groups of contrast tests that the above-mentioned paper technology that provides according to embodiment of the present invention carries out.It should be noted that in the following embodiments, do not have special restriction for the process conditions such as diluted slurry, stirring, it all can change according to different process requirements, and it can not cause restriction to described paper technology provided by the present invention.
First group: the experiment that the paper technology providing according to prior art and this case respectively in the situation that of adding retention agent in papermaking systems carries out, wherein comparative example 1 is prior art, embodiment 1 ~ 3 is the present invention.
Comparative example 1: get bleaching needle-point leaf pulp 20%, bleached hardwood pulp material 70%, poplar hydrogen peroxide chemi-mechanical pulp 10%, amount to the aqueous slurry of 20g oven dry stock, be adjusted to slurry and be densely about 4%, under 600RPM, stir 5 minutes, under stirring condition, adding quality is the moisture heavy calcium carbonate filling of oven dry stock quality 300%, continue to add the cationic starch of over dry slurry 2%, be diluted with water to slurry dense 1%, add successively ternary to retain the each 800PPM of auxiliary agent, the composition that ternary retains auxiliary agent is: cationic polyacrylamide, bentonite, anionic polyacrylamide, under 600RPM, stir 5 minutes, be diluted to slurry concentration approximately 0.3%, join the handsheet of folding arms, quantitatively 100gsm.
Embodiment 1: get the aqueous slurry that contains 20g oven dry stock with comparative example same composition, be adjusted to slurry and be densely about 4%, under 600RPM, stir 5 minutes, under stirring condition, adding quality is the moisture heavy calcium carbonate filling of oven dry stock quality 100%, then, under stirring condition, adding quality is the described paper making additive of oven dry stock quality 0.1%, continue to add the cationic starch of over dry slurry 2%, be diluted with water to slurry dense 1%, add successively ternary to retain the each 800PPM of auxiliary agent, the composition that ternary retains auxiliary agent is: cationic polyacrylamide, bentonite, anionic polyacrylamide, under 600RPM, stir 5 minutes, be diluted to slurry concentration approximately 0.3%, join the handsheet of folding arms, quantitatively 100gsm.
Embodiment 2: get the aqueous slurry that contains 20g oven dry stock with comparative example same composition, be adjusted to slurry and be densely about 4%, under 600RPM, stir 5 minutes, under stirring condition, adding quality is the moisture heavy calcium carbonate filling of oven dry stock quality 200%, then, under stirring condition, adding quality is the described paper making additive of oven dry stock quality 1.5%, continue to add the cationic starch of over dry slurry 2%, be diluted with water to slurry dense 1%, add successively ternary to retain the each 800PPM of auxiliary agent, the composition that ternary retains auxiliary agent is: cationic polyacrylamide, bentonite, anionic polyacrylamide, under 600RPM, stir 5 minutes, be diluted to slurry concentration approximately 0.3%, join the handsheet of folding arms, quantitatively 100gsm.
Embodiment 3: get the aqueous slurry that contains 20g oven dry stock with comparative example same composition, be adjusted to slurry and be densely about 4%, under 600RPM, stir 5 minutes, under stirring condition, adding quality is the moisture heavy calcium carbonate filling of oven dry stock quality 300%, then, under stirring condition, adding quality is the described paper making additive of oven dry stock quality 15%, continue to add the cationic starch of over dry slurry 2%, be diluted with water to slurry dense 1%, add successively ternary to retain the each 800PPM of auxiliary agent, the composition that ternary retains auxiliary agent is: cationic polyacrylamide, bentonite, anionic polyacrylamide, under 600RPM, stir 5 minutes, be diluted to slurry concentration approximately 0.3%, join the handsheet of folding arms, quantitatively 100gsm.
Second group: the experiment that the paper technology providing according to prior art and this case respectively in the situation that of not adding retention agent in papermaking systems carries out, wherein, comparative example 2 ~ 4 is prior art, embodiment 4 ~ 6 is the present invention.
Comparative example 2: get bleaching needle-point leaf pulp 10%, poplar hydrogen peroxide chemi-mechanical pulp 90%, the altogether aqueous slurry of 20g oven dry stock, adding quality is the filler of oven dry stock quality 50%, and continuing to add quality is the cationic starch of oven dry stock quality 2%, dilution, handsheet, quantitatively 70gsm.
Embodiment 4: get bleaching needle-point leaf pulp 10%, poplar hydrogen peroxide chemi-mechanical pulp 90%, amount to the aqueous slurry of 20g oven dry stock, under stirring condition, adding quality is the filler of oven dry stock quality 50%, and then, under stirring condition, adding quality is the described paper making additive of oven dry stock quality 1.5%, continue to add the cationic starch of over dry slurry 2%, dilution, handsheet, quantitatively 70gsm.
Comparative example 3: get bleaching needle-point leaf pulp 10%, poplar hydrogen peroxide chemi-mechanical pulp 90%, amount to the aqueous slurry of 20g oven dry stock, be adjusted to slurry and dense being about under 4%, 600RPM stir 5 minutes, under stirring condition, adding quality is the moisture heavy calcium carbonate filling of oven dry stock quality 10%, continue to add the cationic starch of over dry slurry 0.1%, be diluted to slurry concentration approximately 0.3%, join the handsheet of folding arms, quantitatively 70gsm.
Embodiment 5: get bleaching needle-point leaf pulp 10%, poplar hydrogen peroxide chemi-mechanical pulp 90%, amount to the aqueous slurry of 20g oven dry stock, add the PVAm solution that contains 1.5% borax of slurry over dry 1.5%wt, continuing under stirring condition, to add quality is the moisture heavy calcium carbonate filling of oven dry stock quality 10%, be adjusted to slurry and be densely about 4%, under 600RPM, stir 5 minutes, continue to add the cationic starch of over dry slurry 0.1%, be diluted to slurry concentration approximately 0.3%, join the handsheet of folding arms, quantitatively 70gsm.
Comparative example 4: get bleaching needle-point leaf pulp 10%, poplar hydrogen peroxide chemi-mechanical pulp 90%, amount to the aqueous slurry of 20g oven dry stock, be adjusted to slurry and dense being about under 4%, 600RPM stir 5 minutes, under stirring condition, adding quality is the moisture heavy calcium carbonate filling of oven dry stock quality 20%, continue to add the cationic starch of over dry slurry 0.1%, be diluted to slurry concentration approximately 0.3%, join the handsheet of folding arms, quantitatively 70gsm.
Embodiment 6: get bleaching needle-point leaf pulp 10%, poplar hydrogen peroxide chemi-mechanical pulp 90%, amount to the aqueous slurry of 20g oven dry stock, add the PVAm solution that contains 1.5% borax of slurry over dry 1.5%wt, continuing under stirring condition, to add quality is the moisture heavy calcium carbonate filling of oven dry stock quality 20%, be adjusted to slurry and be densely about 4%, under 600RPM, stir 5 minutes, continue to add the cationic starch of over dry slurry 0.1%, be diluted to slurry concentration approximately 0.3%, join the handsheet of folding arms, quantitatively 70gsm.
Following table is the result after the performance of the paper of respectively above-mentioned each paper technology being manufactured paper with pulp is out tested, wherein, initial journey ash content retention rate=A*100/ (L* (1-A)), ash content retention rate=A/L, wherein, A is the ash content of paper, L by paper pulp the quality of interpolation filler.
Correction data by upper table can obviously be found out, no matter in papermaking systems, whether be added with retention agent, compared with the comparative example of prior art, according to paper technology provided by the present invention, there is obvious lifting to having added by the ash content retention rate of the paper of manufacturing paper with pulp out after the paper making additive of boron-containing compound and cation high molecular mixed preparing in paper pulp.
The present invention also provides the paper product obtaining according to above-mentioned paper technology, and described paper product comprises paper body, in described paper body, has boron-containing compound-cation high molecular cross-linking agent and filler.
In the present invention, the use amount of the filler in described paper product and boron-containing compound-cation high molecular cross-linking agent can be determined according to different product design demands.
Preferably, in described paper product, the content of described boron-containing compound-cation high molecular cross-linking agent is the 0.1%-15%wt of fiber oven-dry weight, and the content of described filler is 8% ~ 70% of fiber oven-dry weight.
In addition, those skilled in the art also can do other variation in spirit of the present invention.Therefore the variation that these do according to spirit of the present invention, within all should being included in the present invention's scope required for protection.
Claims (16)
1. a paper making additive, is characterized in that: described paper making additive is mainly mixed crosslinked forming with cation high molecular by boron-containing compound.
2. paper making additive as claimed in claim 1, is characterized in that: described boron-containing compound is one or more in boric acid, Boratex, Firebrake ZB, borax, raphite, boromagnesite, ludwigite and boracite.
3. paper making additive as claimed in claim 1, is characterized in that: described cation high molecular is one or more in block, grafting and the derivative of cationic polysaccharide, amido high polymer, cationic polysaccharide and amido high polymer.
4. paper making additive as claimed in claim 3, it is characterized in that: described cationic polysaccharide comprises cationic cellulose and quaternary ammonium salt derivative, cation guar gum and quaternary ammonium salt derivative thereof, cationic starch, CATION sodium alginate and quaternary ammonium salt derivative, shitosan and quaternary ammonium salt derivative thereof, and described amido high polymer comprises cationic polyacrylamide, polyvinylamine, polymine.
5. paper making additive as claimed in claim 1, is characterized in that: the molecular weight of described cation high molecular is 2,000 ~ 2,000,000.
6. paper making additive as claimed in claim 1, is characterized in that: the molecular weight of described cation high molecular is 20,000 ~ 1,000,000.
7. the paper making additive as described in claim 1 ~ 6 any one, is characterized in that: in described paper making additive, the quality of described boron-containing compound accounts for 0.1% ~ 15% of described cation high molecular quality.
8. a paper technology, it comprises the steps:
Boron-containing compound is mixed crosslinked with preparation paper making additive with cation high molecular;
Described paper making additive is joined in paper pulp, mix slurry to prepare; And
Utilize described mixing to starch the paper of manufacturing paper with pulp.
9. paper technology as claimed in claim 8, is characterized in that: the addition of described paper making additive is 0.1% to 15% of described paper pulp oven dry stock.
10. paper technology as claimed in claim 8, is characterized in that: utilizing described mixing slurry to manufacture paper with pulp before paper, also comprising to the step of adding filler, starch and retention agent in described mixing slurry.
11. paper technologies as claimed in claim 10, it is characterized in that: described filler and described paper making additive add in described paper pulp simultaneously, or before described paper making additive adds, join in described paper pulp, or join in described paper pulp after described paper making additive adds.
12. paper technologies as claimed in claim 10, is characterized in that: the serve as reasons Microparticle Retention System of one or more cationic polyelectrolytes and one or more anionic species composition of described retention agent.
13. paper technologies as claimed in claim 12, is characterized in that: described retention agent is the ternary Microparticle Retention System being formed by cationic polyacrylamide, bentonite and anionic polyacrylamide.
14. paper technologies as claimed in claim 8, is characterized in that: in described paper pulp, the addition of described filler is 10% to 300% of described paper pulp oven dry stock.
15. 1 kinds of paper products, it comprises paper body, it is characterized in that: in described paper body, have boron-containing compound-cation high molecular cross-linking agent and filler.
16. paper products as claimed in claim 15, is characterized in that: the content of described boron-containing compound-cation high molecular cross-linking agent is the 0.1%-15%wt of fiber oven-dry weight, and the content of described filler is 8% ~ 70% of fiber oven-dry weight.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310047036.0A CN103966892A (en) | 2013-02-05 | 2013-02-05 | Papermaking auxiliary agent, papermaking process and paper product |
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| CN201310047036.0A CN103966892A (en) | 2013-02-05 | 2013-02-05 | Papermaking auxiliary agent, papermaking process and paper product |
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| CN201310047036.0A Pending CN103966892A (en) | 2013-02-05 | 2013-02-05 | Papermaking auxiliary agent, papermaking process and paper product |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017106310A1 (en) * | 2015-12-14 | 2017-06-22 | Ecolab Usa Inc. | Boronic acid containing polymers for papermaking process |
| CN107815919A (en) * | 2017-10-30 | 2018-03-20 | 贵州铜仁华毅新型材料科技有限公司 | A kind of Chinese prickly ash fibers honeycomb paper and preparation method thereof |
| CN110903410A (en) * | 2019-12-05 | 2020-03-24 | 南京大学 | Polycationic polysaccharide and application thereof |
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| US4756801A (en) * | 1984-01-11 | 1988-07-12 | Kemira Oy | Paper-making method and a combination of ingredients to be used in it |
| CN1275116A (en) * | 1997-09-30 | 2000-11-29 | 纳尔科化学公司 | Colloidal borosilicates and their use in poduction of paper |
| CN1705797A (en) * | 2002-09-17 | 2005-12-07 | 国际纸业公司 | Papers comprising a boron-containing compound and a method of making same |
| CN101974125A (en) * | 2004-07-30 | 2011-02-16 | 巴斯夫欧洲公司 | Polymeric boronic acid derivatives and their use for papermaking |
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2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4756801A (en) * | 1984-01-11 | 1988-07-12 | Kemira Oy | Paper-making method and a combination of ingredients to be used in it |
| CN1275116A (en) * | 1997-09-30 | 2000-11-29 | 纳尔科化学公司 | Colloidal borosilicates and their use in poduction of paper |
| CN1705797A (en) * | 2002-09-17 | 2005-12-07 | 国际纸业公司 | Papers comprising a boron-containing compound and a method of making same |
| CN101974125A (en) * | 2004-07-30 | 2011-02-16 | 巴斯夫欧洲公司 | Polymeric boronic acid derivatives and their use for papermaking |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017106310A1 (en) * | 2015-12-14 | 2017-06-22 | Ecolab Usa Inc. | Boronic acid containing polymers for papermaking process |
| US11035080B2 (en) | 2015-12-14 | 2021-06-15 | Ecolab Usa Inc. | Boronic acid containing polymers for papermaking process |
| CN107815919A (en) * | 2017-10-30 | 2018-03-20 | 贵州铜仁华毅新型材料科技有限公司 | A kind of Chinese prickly ash fibers honeycomb paper and preparation method thereof |
| CN110903410A (en) * | 2019-12-05 | 2020-03-24 | 南京大学 | Polycationic polysaccharide and application thereof |
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