CN103103863A - Method for producing dry type duplicating body paper - Google Patents
Method for producing dry type duplicating body paper Download PDFInfo
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- CN103103863A CN103103863A CN2012105884724A CN201210588472A CN103103863A CN 103103863 A CN103103863 A CN 103103863A CN 2012105884724 A CN2012105884724 A CN 2012105884724A CN 201210588472 A CN201210588472 A CN 201210588472A CN 103103863 A CN103103863 A CN 103103863A
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Abstract
The invention belongs to a papermaking technology, and relates to a method for producing dry type duplicating body paper. The method comprises the following steps of: making finished paper by crushing, grinding and mixing basic raw materials of bleached chemical broad-leaved wood pulp and bleached chemical softwood pulp, sizing, dehydrating, pre-drying, performing surface sizing, post-drying, glossing and coiling; during manufacturing, adding fillers, an inner sizing agent, a wet-strength agent and a surface sizing agent, wherein the two basic raw materials comprise 65-85 percent of bleached chemical broad-leaved wood pulp and 15-35 percent of bleached chemical softwood pulp, and the fillers comprise titanium dioxide and calcium carbonate; adding the titanium dioxide during pulp crushing, wherein the adding amount is 20-60 kilograms for per ton of paper; and adding the calcium carbonate during pulp mixing, wherein the adding amount is 120-280 kilograms for per ton of paper. With the method, the production cost can be reduced, the yield is improved, and the non transparency of a product is improved.
Description
Technical field
The invention belongs to paper technology, relate to a kind of production method of dry type duplicating original paper.
Background technology
Existing dry type duplicating original paper production method is, with the mixing wood pulp base stock of bleached chemical hardwood pulp and bleached chemical softwood pulp through pulping, defibrination, with slurry, starching, dehydration, front drying, top sizing, after drying, press polish, the operation such as batch and make into paper, add the auxiliary agents such as filler, internal sizing agent, wet strength agent, Cypres in manufacturing process's flow process.
In above-mentioned conventional method, filler is selected titanium dioxide and calcium carbonate usually, and filler generally adds in slurry or starching process, and in this method, filler runs off more in dehydration, and titanium dioxide is expensive, uses traditional handicraft can cause the significantly lifting of paper production cost; In addition, because the selection percentage of filler is unreasonable, the loss that reaches filler can reduce the opacity of dry carbon paper, is difficult to satisfy higher instructions for use; In addition, the back side of dry carbon paper need to be processed through coating, therefore coating absorption and the green deformation of body paper there is strict demand, the actual production poor effect of the addition manner of internal sizing agent in conventional method, easily make dry carbon paper fold, out-of-flatness, the back side colored coating problem such as occur coming off occur, have a strong impact on the raising of accepted product percentage.
Summary of the invention
The present invention wants the technical solution problem to be, provides a kind of and can reduce production costs, improve accepted product percentage, improves the production method of the dry type duplicating original paper of product opacity.
The production method of dry type duplicating original paper of the present invention is: with bleached chemical hardwood pulp and bleached chemical softwood pulp base stock through pulping, defibrination, with slurry, starching, dehydration, front drying, top sizing, after drying, press polish, batch and make into paper; Add filler, internal sizing agent, wet strength agent, Cypres in manufacturing process's flow process; In described two kinds of base stocks, the consumption of bleached chemical hardwood pulp is the 65-85% weight ratio, and the consumption of bleached chemical softwood pulp is the 15-35% weight ratio; Described filler is titanium dioxide and calcium carbonate; Titanium dioxide adds in the pulping process, and addition is 20-60 kg/ton paper; Calcium carbonate adds in the with slurry process, and addition is 120-280 kg/ton paper.
In such scheme, add respectively internal sizing agent alkyl ketene dimer and wet strength agent polyacrylamide in the starching process, internal sizing agent alkyl ketene dimer addition is 0.5-2.0 kg/ton paper, and the daiamid epoxy resin content is 0.5-1.0 kg/ton paper.
In described Cypres, the over dry material is cassava oxidized starch and polyvinyl alcohol, and the mass ratio of described cassava oxidized starch and polyvinyl alcohol is 96:4～92:8; In the top sizing operation, top sizing section over dry material addition is 25-65 kg/ton paper.
dry type duplicating original paper of the present invention, as preferred version, used the bleached chemical hardwood pulp of 70-80%, the bleached chemical softwood pulp of 20-30%, add titanium dioxide in the pulping process, addition is 30-45 kg/ton paper, add calcium carbonate in the with slurry process, addition is 180-220 kg/ton paper, add respectively alkyl ketene dimer and daiamid epoxy resin in the starching process, the alkyl ketene dimer addition is 1.0-1.5 kg/ton paper, the daiamid epoxy resin content is 0.5-1.0 kg/ton paper, top sizing section over dry material addition is 35-55 kg/ton paper.
Dry type duplicating original paper of the present invention, as preferred version, used 80% bleached chemical hardwood pulp, 20% bleached chemical softwood pulp, add titanium dioxide in the pulping process, addition is 30 kg/ton paper, add calcium carbonate in the with slurry process, addition is 220 kg/ton paper, add respectively alkyl ketene dimer and daiamid epoxy resin in the starching process, the alkyl ketene dimer addition is 1.0 kg/ton paper, and the daiamid epoxy resin content is 0.5 kg/ton paper, and top sizing section over dry material addition is 55 kg/ton paper.
Dry type duplicating original paper of the present invention, as preferred version, used 70% bleached chemical hardwood pulp, 30% bleached chemical softwood pulp, add titanium dioxide in the pulping process, addition is 45 kg/ton paper, add calcium carbonate in the with slurry process, addition is 180 kg/ton paper, add respectively alkyl ketene dimer and daiamid epoxy resin in the starching process, the alkyl ketene dimer addition is 1.5 kg/ton paper, and the daiamid epoxy resin content is 1.0 kg/ton paper, and top sizing section over dry material addition is 35 kg/ton paper.
Dry type duplicating original paper of the present invention, as preferred version, used 85% bleached chemical hardwood pulp, 15% bleached chemical softwood pulp, add titanium dioxide in the pulping process, addition is 40 kg/ton paper, add calcium carbonate in the with slurry process, addition is 200 kg/ton paper, add respectively alkyl ketene dimer and daiamid epoxy resin in the starching process, the alkyl ketene dimer addition is 1.5 kg/ton paper, and the daiamid epoxy resin content is 1.0 kg/ton paper, and top sizing section over dry material addition is 45 kg/ton paper.
Advantage applies of the present invention exists:
1, by the collocation use of paper making filler and the innovation of addition manner, improved the light transmission of body paper, promote the opacity of body paper, satisfy the requirement of dry carbon paper printed on both sides, reduced simultaneously production cost.Filler titanium dioxide can significantly improve the opacity of paper owing to having high index of refraction, is specially adapted to the production of the demanding dry type duplicating original paper of opacity.The dry type duplicating original paper that this patent is produced, by the test of Optical Property Tester device, opacity 〉=80%, thus make printing effect be greatly improved, solved the problem of picture and text print through after the dry carbon paper printed on both sides.The dry type duplicating original paper that this patent is produced is by pulling force Instrument measuring, machine direction tensile strength 〉=2.5kN/m.
2, owing to adding titanium dioxide in the pulping process, and add more cheap calcium carbonate in the with slurry process, use by such filler collocation, titanium dioxide loss in process of production significantly reduces, through spectrophotometry, the retention rate of titanium dioxide in paper on average approximately the 70%(conventional method add titanium dioxide respectively in slurry, starching process, the retention rate of titanium dioxide in paper is respectively approximately 60% and 55%), production cost has obtained effective control, and the addition under this scheme can not produce harmful effect to refining equipment yet simultaneously.
3, by controlling internal sizing agent alkyl ketene dimer consumption and defibrination freedom, with paper suddenly the water imbibition cobb value (60s) measured of method be controlled at 25 ± 5 gsm, paper transversal stretching index is controlled at≤3.0%, effectively improved the accepted product percentage of coating processing, significantly reduced dry carbon paper and the problems such as coming off appears in fold, out-of-flatness, back side colored coating occur.
4, the present invention is at the little formula that is coated with of dry type duplicating original paper top sizing section's employing, adopted the Recipe of cassava oxidized starch and polyvinyl alcohol combination, the surface strength of paper and the rate of drying of printing-ink have significantly been promoted, effectively reduced the rear paper hair and powder dropping of printing and the insufficient generation that causes the scumming phenomenon of ink setting, and after paper printing, chromophoric characteristic is better.
The specific embodiment
Below in conjunction with concrete enforcement, the present invention is described in further detail.The quantitative scope of dry type duplicating original paper that the present invention produces is 40-50 gsm, fiber adopts bleached chemical broad-leaved wood fiber 65-85%, seeds are that Eucalyptus, poplar, Acacia etc. all can, bleached chemical needle-leaved wood fibre 15-35%, Southern Pine, the north pine, dragon spruce etc. all can, the Canadian freedom 320-520ml of defibrination; The titanium dioxide addition is 20-60 kg/ton paper, the calcium carbonate addition is 120-280 kg/ton paper, internal sizing agent alkyl ketene dimer addition is 0.5-2.0 kg/ton paper, wet strength agent daiamid epoxy resin content is 0.3-1.2 kg/ton paper, top sizing section applies and adds cassava oxidized starch and polyvinyl alcohol in formula, in formula, the mass ratio of cassava oxidized starch and polyvinyl alcohol is 96:4～92:8, top sizing section over dry material addition is 25-65 kg/ton paper, and other auxiliary agents and starch based reinforcing agent add by common consumption.
Example one: copying paper is quantitatively 50 g/m2
1. pulping: successively add 80% bleached chemical hardwood pulp and 20% bleached chemical softwood pulp in pulper; Good wood pulp mixes then to add titanium dioxide and evacuation, and addition is 30 kg/ton paper.
2. defibrination: the defibrination freedom is controlled at 380ml.
3. with slurry: add calcium carbonate, addition is 180 kg/ton paper.
4. starching: diverse location adds respectively alkyl ketene dimer and daiamid epoxy resin, and the alkyl ketene dimer addition is 1.0 kg/ton paper, and the daiamid epoxy resin content is 0.5 kg/ton paper.
5. paper pulp through dehydration, front drying, adds cassava oxidized starch and polyvinyl alcohol in top sizing section applies formula, and in formula, the mass ratio of cassava oxidized starch and polyvinyl alcohol is 95:5, and top sizing section over dry material addition is 60 kg/ton paper.
Top sizing by later drying, press polish, batch and make into paper.Through the relevant criterion Instrument measuring: become paper opacity 81.8%, water imbibition cobb value (60s) 24.3 gsm, transversal stretching 2.63%, machine direction tensile strength 3.09kN/m.
Example two: copying paper is quantitatively 40 g/m2
1. pulping: successively add 70% bleached chemical hardwood pulp and 30% bleached chemical softwood pulp in pulper; Good wood pulp mixes then to add titanium dioxide and evacuation, and addition is 45 kg/ton paper.。
2. defibrination: the defibrination freedom is controlled at 420ml.
3. with slurry: add calcium carbonate, addition is 220 kg/ton paper.
4. starching: diverse location adds respectively alkyl ketene dimer and daiamid epoxy resin, and the alkyl ketene dimer addition is 1.5 kg/ton paper, and the daiamid epoxy resin content is 1.0 kg/ton paper.
5. paper pulp through dehydration, front drying, adds cassava oxidized starch and polyvinyl alcohol in top sizing section applies formula, and in formula, the mass ratio of cassava oxidized starch and polyvinyl alcohol is 95:5, and top sizing section over dry material addition is 40 kg/ton paper.
Top sizing by later drying, press polish, batch and make into paper.Through the relevant criterion Instrument measuring: become paper opacity 81.1%, water imbibition cobb value (60s) 22.4 gsm, transversal stretching 2.49%, machine direction tensile strength 2.59kN/m.
Example three: copy paper and quantitatively be 45g/m2
1. pulping: successively add 85% bleached chemical hardwood pulp and 15% bleached chemical softwood pulp in pulper; Good wood pulp mixes then to add titanium dioxide and evacuation, and addition is 40 kg/ton paper.
2. defibrination: the defibrination freedom is controlled at 400ml.
3. with slurry: add calcium carbonate, addition is 200 kg/ton paper.
4. starching: diverse location adds respectively alkyl ketene dimer and daiamid epoxy resin, and the alkyl ketene dimer addition is 1.5 kg/ton paper, and the daiamid epoxy resin content is 1.0 kg/ton paper.
5. paper pulp through dehydration, front drying, adds cassava oxidized starch and polyvinyl alcohol in top sizing section applies formula, and in formula, the mass ratio of cassava oxidized starch and polyvinyl alcohol is 95:5, and top sizing section over dry material addition is 50 kg/ton paper.
Top sizing by later drying, press polish, batch and make into paper.Through the relevant criterion Instrument measuring: become paper opacity 81.6%, water imbibition cobb value (60s) 23.7 gsm, transversal stretching 2.55%, machine direction tensile strength 2.87kN/m.
Separately take traditional paper technology as example, compare with example three, the technique effect of this patent is described.
Comparative Examples one: copy paper and quantitatively be 45g/m2
1. pulping: successively add 85% bleached chemical hardwood pulp and 15% bleached chemical softwood pulp in pulper.
2. defibrination: the defibrination freedom is controlled at 400ml.
3. with slurry: add calcium carbonate, addition is 350 kg/ton paper.
4. starching: diverse location adds respectively alkyl ketene dimer and daiamid epoxy resin, and the alkyl ketene dimer addition is 1.5 kg/ton paper, and the daiamid epoxy resin content is 1.0 kg/ton paper.
5. paper pulp through dehydration, front drying, adds cassava oxidized starch and polyvinyl alcohol in top sizing section applies formula, and in formula, the mass ratio of cassava oxidized starch and polyvinyl alcohol is 95:5, and top sizing section over dry material addition is 50 kg/ton paper.
Top sizing by later drying, press polish, batch and make into paper.Through the relevant criterion Instrument measuring: become paper opacity 79.8%, water imbibition cobb value (60s) 28.7gsm, transversal stretching 2.43%, machine direction tensile strength 1.97kN/m.
Comparative Examples one is compared with example three: technology difference is that Comparative Examples one do not add titanium dioxide, only add calcium carbonate in the with slurry process, by quality of finished paper: become paper opacity index will reach 80% in Comparative Examples one, the addition of calcium carbonate is far above example three, and become the not enough 2.0kN/m of paper machine direction tensile strength, be difficult to satisfy the processing needs of dry carbon paper.
Comparative Examples two: copy paper and quantitatively be 45g/m2
1. pulping: successively add 85% bleached chemical hardwood pulp and 15% bleached chemical softwood pulp in pulper.
2. defibrination: the defibrination freedom is controlled at 400ml.
3. with slurry: add respectively calcium carbonate and titanium dioxide, the calcium carbonate addition is 200 kg/ton paper; The titanium dioxide addition is 40 kg/ton paper.
4. starching: diverse location adds respectively alkyl ketene dimer and daiamid epoxy resin, and the alkyl ketene dimer addition is 1.5 kg/ton paper, and the daiamid epoxy resin content is 1.0 kg/ton paper.
5. paper pulp through dehydration, front drying, adds cassava oxidized starch and polyvinyl alcohol in top sizing section applies formula, and in formula, the mass ratio of cassava oxidized starch and polyvinyl alcohol is 95:5, and top sizing section over dry material addition is 50 kg/ton paper.
Top sizing by later drying, press polish, batch and make into paper.Through the relevant criterion Instrument measuring: become paper opacity 80.5%, water imbibition cobb value (60s) 24.3gsm, transversal stretching 2.61%, machine direction tensile strength 2.82kN/m.
Comparative Examples two is compared with example three: the technology difference is that in Comparative Examples two, titanium dioxide adds in the with slurry process, by quality of finished paper: compared with example three, become paper opacity index low in Comparative Examples two, in side light Comparative Examples two, the reservation of titanium dioxide in becoming paper is not as example three, reach the opacity level of example one, need to increase the addition of titanium dioxide or calcium carbonate, cause production cost to increase.
Claims (7)
1. the production method of a dry type duplicating original paper, the method with bleached chemical hardwood pulp and bleached chemical softwood pulp base stock through pulping, defibrination, with slurry, starching, dehydration, front drying, top sizing, after drying, press polish, batch and make into paper; Add filler, internal sizing agent, wet strength agent, Cypres in manufacturing process's flow process; It is characterized in that: in described two kinds of base stocks, the consumption of bleached chemical hardwood pulp is the 65-85% weight ratio, and the consumption of bleached chemical softwood pulp is the 15-35% weight ratio; Described filler is titanium dioxide and calcium carbonate; Titanium dioxide adds in the pulping process, and addition is 20-60 kg/ton paper; Calcium carbonate adds in the with slurry process, and addition is 120-280 kg/ton paper.
2. the production method of dry type duplicating original paper according to claim 1, it is characterized in that: add respectively internal sizing agent alkyl ketene dimer and wet strength agent polyacrylamide in the starching process, internal sizing agent alkyl ketene dimer addition is 0.5-2.0 kg/ton paper, and the daiamid epoxy resin content is 0.5-1.0 kg/ton paper.
3. the production method of dry type duplicating original paper according to claim 2, it is characterized in that: in described Cypres, the over dry material is cassava oxidized starch and polyvinyl alcohol, the mass ratio of described cassava oxidized starch and polyvinyl alcohol is 96:4～92:8; In the top sizing operation, top sizing section over dry material addition is 25-65 kg/ton paper.
4. the production method of dry type duplicating original paper according to claim 3, it is characterized in that: the method has been used the bleached chemical hardwood pulp of 70-80%, the bleached chemical softwood pulp of 20-30%; Add titanium dioxide in the pulping process, addition is 30-45 kg/ton paper; Add calcium carbonate in the with slurry process, addition is 180-220 kg/ton paper, add respectively alkyl ketene dimer and daiamid epoxy resin in the starching process, the alkyl ketene dimer addition is 1.0-1.5 kg/ton paper, the daiamid epoxy resin content is 0.5-1.0 kg/ton paper, and top sizing section over dry material addition is 35-55 kg/ton paper.
5. the production method of dry type duplicating original paper according to claim 3, it is characterized in that: the method has been used 80% bleached chemical hardwood pulp, 20% bleached chemical softwood pulp, add titanium dioxide in the pulping process, addition is 30 kg/ton paper, add calcium carbonate in the with slurry process, addition is 220 kg/ton paper, add respectively alkyl ketene dimer and daiamid epoxy resin in the starching process, the alkyl ketene dimer addition is 1.0 kg/ton paper, the daiamid epoxy resin content is 0.5 kg/ton paper, top sizing section over dry material addition is 55 kg/ton paper.
6. the production method of dry type duplicating original paper according to claim 3, it is characterized in that: the method has been used 70% bleached chemical hardwood pulp, 30% bleached chemical softwood pulp, add titanium dioxide in the pulping process, addition is 45 kg/ton paper, add calcium carbonate in the with slurry process, addition is 180 kg/ton paper, add respectively alkyl ketene dimer and daiamid epoxy resin in the starching process, the alkyl ketene dimer addition is 1.5 kg/ton paper, the daiamid epoxy resin content is 1.0 kg/ton paper, top sizing section over dry material addition is 35 kg/ton paper.
7. the production method of dry type duplicating original paper according to claim 3, it is characterized in that: the method has been used 85% bleached chemical hardwood pulp, 15% bleached chemical softwood pulp, add titanium dioxide in the pulping process, addition is 40 kg/ton paper, add calcium carbonate in the with slurry process, addition is 200 kg/ton paper, add respectively alkyl ketene dimer and daiamid epoxy resin in the starching process, the alkyl ketene dimer addition is 1.5 kg/ton paper, the daiamid epoxy resin content is 1.0 kg/ton paper, top sizing section over dry material addition is 45 kg/ton paper.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103628352A (en) * | 2013-11-29 | 2014-03-12 | 亚太森博(广东)纸业有限公司 | Office paper and production method of office paper |
| CN105332316A (en) * | 2015-10-22 | 2016-02-17 | 山东万豪纸业集团股份有限公司 | Method for producing artistic paperboard by taking commercial wood pulp as raw material |
| CN106320061A (en) * | 2016-09-06 | 2017-01-11 | 镇江大东纸业有限公司 | Production method of aluminum-free inner liner paper for cigarettes |
| CN106400578A (en) * | 2016-10-11 | 2017-02-15 | 亚太森博(广东)纸业有限公司 | Preparation method of office paper with effect of moisture prevention |
| CN106436436A (en) * | 2016-10-11 | 2017-02-22 | 亚太森博(广东)纸业有限公司 | Making method of office paper |
| CN107354803A (en) * | 2016-05-09 | 2017-11-17 | 大东全斯福特种纸业（镇江）有限公司 | The production method of ink-jet transfer printing paper |
| CN110685180A (en) * | 2019-08-29 | 2020-01-14 | 牡丹江恒丰纸业股份有限公司 | Method for manufacturing tipping base paper suitable for environment-friendly ink and water satellite type flexographic printing technology |
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| CN103628352A (en) * | 2013-11-29 | 2014-03-12 | 亚太森博(广东)纸业有限公司 | Office paper and production method of office paper |
| CN103628352B (en) * | 2013-11-29 | 2016-03-16 | 亚太森博(广东)纸业有限公司 | A kind of paper in the office and manufacture method thereof |
| CN105332316A (en) * | 2015-10-22 | 2016-02-17 | 山东万豪纸业集团股份有限公司 | Method for producing artistic paperboard by taking commercial wood pulp as raw material |
| CN107354803A (en) * | 2016-05-09 | 2017-11-17 | 大东全斯福特种纸业（镇江）有限公司 | The production method of ink-jet transfer printing paper |
| CN106320061A (en) * | 2016-09-06 | 2017-01-11 | 镇江大东纸业有限公司 | Production method of aluminum-free inner liner paper for cigarettes |
| CN106320061B (en) * | 2016-09-06 | 2018-02-23 | 镇江大东纸业有限公司 | Production method without aluminium tobacco lining paper base paper |
| CN106400578A (en) * | 2016-10-11 | 2017-02-15 | 亚太森博(广东)纸业有限公司 | Preparation method of office paper with effect of moisture prevention |
| CN106436436A (en) * | 2016-10-11 | 2017-02-22 | 亚太森博(广东)纸业有限公司 | Making method of office paper |
| CN110685180A (en) * | 2019-08-29 | 2020-01-14 | 牡丹江恒丰纸业股份有限公司 | Method for manufacturing tipping base paper suitable for environment-friendly ink and water satellite type flexographic printing technology |
| CN110685180B (en) * | 2019-08-29 | 2021-11-19 | 牡丹江恒丰纸业股份有限公司 | Method for manufacturing tipping base paper suitable for environment-friendly ink and water satellite type flexographic printing technology |
| CN111501411A (en) * | 2020-04-22 | 2020-08-07 | 宁波思特雷斯金属防护材料有限公司 | Production process of sulfur-free circuit board isolation paper |
| CN112626908A (en) * | 2020-12-15 | 2021-04-09 | 吴广宇 | Method for manufacturing environment-friendly weather-resistant functional household board surface coating base paper |
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Inventor after: Chen Yuanxing Inventor after: Chen Guoping Inventor after: Dai Luogen Inventor after: Tan Ninghua Inventor after: Cai Zhaobin Inventor after: Gu Keqiang Inventor before: Chen Yuanxing Inventor before: Chen Guoping Inventor before: Dai Luogen Inventor before: Tan Ninghua Inventor before: Cai Zhaobin |
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Free format text: CORRECT: INVENTOR; FROM: CHEN YUANXING CHEN GUOPING DAI LUOGEN TAN NINGHUA CAI ZHAOBIN TO: CHEN YUANXING CHEN GUOPING DAI LUOGEN TAN NINGHUA CAI ZHAOBIN GU KEQIANG |
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Application publication date: 20130515 |