CN102877365B - Manufacturing method of high-bulk coating printing paper - Google Patents
Manufacturing method of high-bulk coating printing paper Download PDFInfo
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- CN102877365B CN102877365B CN201210405479.8A CN201210405479A CN102877365B CN 102877365 B CN102877365 B CN 102877365B CN 201210405479 A CN201210405479 A CN 201210405479A CN 102877365 B CN102877365 B CN 102877365B
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Abstract
The invention discloses a manufacturing method of high-bulk coating printing paper. In the method, high proportion chemical pulp is adopted for coating body paper, light calcium carbonate is used as filler, and high bulk is achieved. A door roller coating machine is used for coating the body paper, and the coating paint adopts plastic paint with a given proportion and a hollow structure, so that the bulk of the coat and the formed paper brightness can be effectively improved. Meanwhile, a soft calender is used for pre-calendering and polishing the coated body paper, so that the fineness of the paper surface is greatly improved while the thickness of the original paper is maintained. The bulk of the high-bulk coating printing paper manufactured through the method is 1.3 to 1.5 cm<3>/g and is far better than that of the ordinary copper paper and light coating paper; and meanwhile, the surface of the paper is smooth and fine, so that printed patterns are full and rich in color, image dots are clear and strong in three-dimensional impression, and the paper is applicable to top-grade color printing.
Description
Technical field
The present invention relates to a kind of manufacture method of high bulk coated printing paper, belong to pulp technology for making paper.
Background technology
In recent years, the demand of high bulk printing paper is in continuous growth.High bulking paper light weight not only maintains thickness and the opacity of original paper, the low grammes per square metre high bulking paper of condition of equivalent thickness can be adopted during printing to carry out the common double gummed paper of alternative high grammes per square metre, not only facilitate reader, paper pulp use amount can be reduced simultaneously, save the energy, reduce ambient pollution burden.
At present, on market, high bulk printing paper is mainly uncoated light offset paper, and domestic papermaking enterprise is not also developed for the coated printing paper of high bulk.In order to fill up this market vacancy, simultaneously from economizing on resources and the angle of protection of the environment, Zhongye Paper Yinhe Co., Ltd. successfully develops bulk at 1.3 ~ 1.5cm
3the high bulk coated printing paper of/g, and called after " refined matter paper ".This paper bulk is far superior to ordinary copper millboard and light weight coated paper, and paper surface is smoothly fine and smooth simultaneously, and printed patterns color is full bright-coloured, and the clear third dimension of dot of image is strong, is applicable to high-grade colored printing.The successful exploitation of refined matter paper is significant for adjustment China coated printing paper product structure.
Summary of the invention
The object of the present invention is to provide a kind of manufacture method of high bulk coated printing paper.Its bodystock paper adopts the chemi-mechanical pulp of higher proportion; Adopt door roller coating machine to carry out coating process to body paper, its coating pigment adopts a certain proportion of plastic pigment with hollow structure simultaneously, effectively can improve the bulk of coating and become paper glossiness; Particularly have employed soft press-polishing machine and also carry out surface finish to bodystock paper, while reservation body paper bulk, the fine and smooth degree of paper surface is greatly improved.High bulk coated printing paper bulk of the present invention is 1.3 ~ 1.5cm
3/ g, is far superior to ordinary copper millboard and light weight coated paper, and paper surface is smoothly fine and smooth simultaneously, and the full third dimension of printed patterns color is strong.
For achieving the above object, technical scheme of the present invention is as follows: a kind of high bulk coated printing paper manufacture method, comprise making beating, with slurry and auxiliary material adds, wet paper sheet formation (online, squeezing), front drying, pre-press polish, coating, rear drying and soft calendaring finishing process step, it is characterized in that, adopt soft press-polishing machine to carry out precompressed polishing decorations to premenstrual dried bodystock paper, then adopt door roller coating machine to carry out coating process to body paper;
Described pre-press polish process conditions:
Adopt two nip pattern, 1. enter soft press-polishing machine paper web moisture: 8 ~ 12%; 2. line ball pressure: a 100 ~ 160kN/m; One pressure stiff dough roller (warm-up mill) operating temperature: 80 ~ 120 DEG C; 3. two line ball pressure: 120 ~ 180kN/m; Two pressure stiff dough roller (warm-up mill) operating temperatures: 100 ~ 140 DEG C;
Through the body paper bulk 1.5 ~ 1.6cm of soft press-polishing machine surface finish
3/ g; Smoothness (positive/negative face) all>=40s, smoothness two sides difference < 10%.
Described door roll coating process parameter:
Adopt door roll coater, 1. coating solids: 60 ~ 63%; Dope viscosity: 900 ~ 1500mpas; Coating pH:8.5 ~ 9.3; 2. coating weight: 14 ~ 20g/m2; 3. coating machine paper web moisture is entered: 6 ~ 10%.
The each component of described coating is by weight: 1. pigment 100 parts, wherein powdered whiting 50 ~ 90 parts, china clay 0 ~ 40 part, hollow type plastic pigment 5 ~ 15 parts; 2. carboxylic styrene butadiene latex 10 ~ 15 parts; Coating starch 4 ~ 6 parts; PVA(polyvinyl alcohol) 0.5 ~ 3 part; CMC(sodium carboxymethylcellulose) 0.5 ~ 2 part; Water repellent agent 0.5 ~ 1 part; Lubricant 1 ~ 2 part; Defoamer 0.01 ~ 0.05 part; Below all to the total number of pigment.
Described coating process condition is preferably: external door roller and inside door roll nip linear pressure: 7 ~ 10kN/m; Inside door roller and applicator roll linear load: 8 ~ 14kN/m; Applicator roll linear load: 10 ~ 15kN/m.
Further technical scheme of the present invention is: described step with slurry is preferably:
Slurry weight proportioning is: bleached sulphate softwood pulp 20 ~ 30, leaf wood bleached chemical thermomechanical pulp 30 ~ 40, poplar APMP 35 ~ 50;
Each slurry index:
Bleached sulphate softwood pulp: beating degree 40 ~ 45 ° of SR; Weight in wet base 6.8 ~ 7.5g;
Leaf wood bleached chemical thermomechanical pulp: beating degree 35 ~ 40 ° of SR; Weight in wet base 1.0 ~ 1.4g;
Poplar APMP: beating degree 42 ~ 50 ° of SR; Weight in wet base 1.0 ~ 1.4g.
Further technical scheme of the present invention is: described auxiliary material is preferably oven dry stock consumption (weight ratio): 1. cationic starch consumption 0.6 ~ 1.2%; 2. PAE(Polyamide-Polyamsne-Epichlorohydrin resin) consumption 0.2 ~ 0.5%; 3. AKD(alkyl ketene dimer) consumption 0.1 ~ 0.3%; 4. PEI(polymine) consumption 0.05 ~ 0.12%; 5. CPAM(cationic polyacrylamide) consumption 0.02 ~ 0.05%; 6. APAM(anionic polyacrylamide) consumption 0.02 ~ 0.05%; 7. filler PCC(precipitated calcium carbonate) consumption 12 ~ 20%.
The characteristic of high bulk coated printing paper prepared by the present invention: quantitative 70 ~ 150g/m
2; Bulk 1.3 ~ 1.5cm
3/ g; Smoothness (positive/negative face)>=500s, smoothness two sides difference < 10%; Print surface roughness (positive/negative face)≤2.0 μm; Glossiness (positive/negative face)>=40%, print gloss (positive/negative face)>=60%; Ink absorption≤28%; Picking speed>=1.5m/s; Lateral extensometer shrinkage≤2.5%; Whiteness (ISO brightness) 78 ~ 82%; Opacity>=90%; Horizontal folding strength>=8 time; Longitudinal fracture length>=the 4km of roll web; Surface absorption weight≤35g/m
2; Moisture 5.0 ~ 7.0%.
The invention has the beneficial effects as follows: the present invention relates to a kind of high bulk coated printing paper manufacture method, this bodystock paper adopts the chemi-mechanical pulp of higher proportion, and adopts PCC as filler, has higher bulk.Adopt door roller coating machine to carry out coating process to body paper, its coating pigment adopts a certain proportion of plastic pigment with hollow structure, effectively improves the bulk of coating and becomes paper glossiness.Simultaneously in view of door roller coat cloth has the feature of profile coating, bodystock paper smoothness is made to determine into the smoothness of paper and surperficial fine and smooth degree to a great extent, and high bulk coated printing paper bodystock paper smoothness is low, therefore adopt soft press-polishing machine to carry out precompressed polishing decorations to bodystock paper, while reservation body paper bulk, the fine and smooth degree of paper surface is greatly improved.Adopt the high bulk coated printing paper that this method manufactures, Paper bulk is 1.3 ~ 1.5cm3/g, be far superior to common art paper and light weight coated paper, paper surface is smoothly fine and smooth simultaneously, printed patterns color is full bright-coloured, the clear third dimension of dot of image is strong, is applicable to high-grade colored printing, has very high added value and wide market prospects.
Detailed description of the invention
Embodiment 1:
The each component of coating is by weight: powdered whiting 70 parts, china clay 20 parts, hollow type plastic pigment (polystyrene/acrylate spherical particle) 10 parts; Carboxylic styrene butadiene latex 12 parts; Coating starch 5 parts; PVA(polyvinyl alcohol) 1 part; CMC(sodium carboxymethylcellulose) 1 part; Water repellent agent (zirconium carbonate ammonium) 0.6 part; Lubricant (calcium stearate) 1.5 parts; Defoamer (polyether modified silicon oil type) 0.03 part.
(1) by bleached sulphate softwood pulp (the beating degree 42 ° of SR after making beating, weight in wet base 7.3g), leaf wood bleached chemical thermomechanical pulp (beating degree 36 ° of SR, weight in wet base 1.3g), poplar APMP (beating degree 46 ° of SR, weight in wet base 1.2g) three kinds of slurries carry out with slurry according to the ratio of 25:35:40;
(2) the precipitated calcium carbonate filler of the cationic starch to oven dry stock consumption 0.8%, the PAE of 0.3%, the PEI of 0.1% and 16% is added after successively, slurry is sent into one-level three sections of hydrocyclones through fan pump and is carried out purified treatment, then enters degassing tank and carry out degassed process; Then enter pressurized screen and carry out Screening Treatment (add the CPAM of the AKD and 0.04% to oven dry stock consumption 0.15% in pressurized screen porch, add the APAM to oven dry stock consumption 0.05% in pressurized screen exit);
(3) send into head box online after, regulate surfing flow, control page quantification at 66g/m
2; Online process conditions: concentration of 1. surfing the Net: 0.6 ~ 1.0%; 2. to surf the Net pH:7.4 ~ 8.2; 3. online slurry beating degree 47 ~ 55 ° of SR; 4. total head: 16 ~ 19kPa;
(4) l Water Paper page enters press section and carries out five roller three nip unipress after going out wet end, squeezes and is dried to web dryness is greater than 92% to entering front drying section after mass dryness fraction is greater than 45%; Press section process conditions: 1. line ball pressure: a 40 ~ 50kN/m; 2. two line ball pressure: 55 ~ 65kN/m; 3. three line ball pressure: 60 ~ 75kN/m;
(5) then enter soft press-polishing machine and carry out precompressed polishing decorations, control into soft press-polishing machine paper web moisture 10%, one line ball pressure 120kN/m, a pressure stiff dough roll temperature 90 DEG C, two line ball pressure 150kN/m, two pressure stiff dough roll temperatures 130 DEG C; Go out soft press-polishing machine paper web bulk 1.6cm
3/ g, smoothness (positive/negative face) 45/42s;
(6) paper web first makes paper web moisture be 8% through one group of drying cylinder after going out soft press-polishing machine, then enters door roller coating machine, coating solids 60%, viscosity 1000mpas, pH value 9.0, controls coating weight 14g/m
2; External door roller and inside door roll nip linear pressure: 7 ~ 10kN/m; Inside door roller and applicator roll linear load: 8 ~ 14kN/m; Applicator roll linear load: 10 ~ 15kN/m;
(7) paper web go out door roller coating machine laggard enter rear drying section, then enter soft press-polishing machine and carry out surface finish, adopt two nip pattern: a 1. line ball pressure 140kN/m, a pressure stiff dough roll temperature 130 DEG C; 2. two line ball pressure 160kN/m, two pressure stiff dough roll temperatures 140 DEG C;
(8) paper web goes out soft press-polishing machine and enters rewinding machine, and obtained is quantitatively 80g/m
2, bulk 1.35cm
3/ g, smoothness (positive/negative face) 530/510s, print surface roughness (positive/negative face) 1.8/2.0 μm, glossiness (positive/negative face) 44/42%, print gloss (positive/negative face) 65/63%, ink absorption 28%, picking speed 1.5m/s, lateral extensometer shrinkage 2.5%, whiteness (ISO brightness) 80%, opacity 92%, horizontal folding strength 8 times, longitudinal fracture length 4.5km, Surface absorption weight 30g/m
2, the high bulk coated printing paper of moisture 6.0%.
Embodiment 2:
The each component of coating is by weight: powdered whiting 60 parts, china clay 30 parts, hollow type plastic pigment (polystyrene/acrylate spherical particle) 10 parts; Carboxylic styrene butadiene latex 10 parts; Coating starch 6 parts; PVA(polyvinyl alcohol) 1.5 parts; CMC(sodium carboxymethylcellulose) 1.2 parts; Water repellent agent (zirconium carbonate ammonium) 0.7 part; Lubricant (calcium stearate) 1.6 parts; Defoamer (polyether modified silicon oil type) 0.02 part.
(1) by bleached sulphate softwood pulp (the beating degree 45 ° of SR after making beating, weight in wet base 7.0g), leaf wood bleached chemical thermomechanical pulp (beating degree 36 ° of SR, weight in wet base 1.3g), poplar APMP (beating degree 48 ° of SR, weight in wet base 1.2g) three kinds of slurries carry out with slurry according to the ratio of 20:35:45.
(2) the precipitated calcium carbonate filler of the cationic starch to oven dry stock consumption 0.8%, the PAE of 0.3%, the PEI of 0.1% and 18% is added after successively, slurry is sent into one-level three sections of hydrocyclones through fan pump and is carried out purified treatment, then enters degassing tank and carry out degassed process; Then enter pressurized screen and carry out Screening Treatment (add the CPAM of the AKD and 0.045% to oven dry stock consumption 0.15% in pressurized screen porch, add the APAM to oven dry stock consumption 0.05% in pressurized screen exit);
(3) send into head box online after, regulate surfing flow, control page quantification at 84g/m
2; Online process conditions: concentration of 1. surfing the Net: 0.6 ~ 1.0%; 2. to surf the Net pH:7.4 ~ 8.2; 3. online slurry beating degree 47 ~ 55 ° of SR; 4. total head: 16 ~ 19kPa;
(4) l Water Paper page enters press section and carries out five roller three nip unipress after going out wet end, squeezes and is dried to web dryness is greater than 92% to entering front drying section after mass dryness fraction is greater than 45%; Press section process conditions: 1. line ball pressure: a 40 ~ 50kN/m; 2. two line ball pressure: 55 ~ 65kN/m; 3. three line ball pressure: 60 ~ 75kN/m;
(5) then enter soft press-polishing machine and carry out precompressed polishing decorations, control into soft press-polishing machine paper web moisture 10%, one line ball pressure 130kN/m, a pressure stiff dough roll temperature 100 DEG C, two line ball pressure 150kN/m, two pressure stiff dough roll temperatures 130 DEG C; Go out soft press-polishing machine paper web bulk 1.6cm
3/ g, smoothness (positive/negative face) 46/44s;
(6) paper web first makes paper web moisture be 8% through one group of drying cylinder after going out soft press-polishing machine, then enters door roller coating machine, coating solids 60%, viscosity 1000mpas, pH value 9.0, controls coating weight 16g/m
2; External door roller and inside door roll nip linear pressure: 7 ~ 10kN/m; Inside door roller and applicator roll linear load: 8 ~ 14kN/m; Applicator roll linear load: 10 ~ 15kN/m;
(7) paper web go out door roller coating machine laggard enter rear drying section, then enter soft press-polishing machine and carry out surface finish, adopt two nip pattern: a 1. line ball pressure 130kN/m, a pressure stiff dough roll temperature 120 DEG C; 2. two line ball pressure 140kN/m, two pressure stiff dough roll temperatures 130 DEG C;
(8) paper web goes out soft press-polishing machine and enters rewinding machine, and obtained is quantitatively 100g/m
2, bulk 1.45cm
3/ g, smoothness (positive/negative face) 550/520s, print surface roughness (positive/negative face) 1.7/1.8 μm, glossiness (positive/negative face) 43/42%, print gloss (positive/negative face) 67/65%, ink absorption 28%, picking speed 1.5m/s, lateral extensometer shrinkage 2.5%, whiteness (ISO brightness) 80%, opacity 93%, horizontal folding strength 9 times, longitudinal fracture length 4.2km, Surface absorption weight 27g/m
2, the high bulk coated printing paper of moisture 6.0%.
Claims (6)
1. a high bulk coated printing paper manufacture method, comprise making beating, with slurry and auxiliary material adds, wet paper sheet formation, front drying, pre-press polish, coating, rear drying and soft calendaring finishing process step, it is characterized in that, adopt soft press-polishing machine to carry out precompressed polishing decorations to premenstrual dried bodystock paper, then adopt door roll coater to carry out coating process to body paper; In described auxiliary material, filler adopts precipitated calcium carbonate;
Described pre-press polish process conditions: adopt two nip pattern, 1. enter soft press-polishing machine paper web moisture: 8 ~ 12%; 2. line ball pressure: a 100 ~ 160kN/m; One pressure stiff dough roller operating temperature: 80 ~ 120 DEG C; 3. two line ball pressure: 120 ~ 180kN/m; Two pressure stiff dough roller operating temperatures: 100 ~ 140 DEG C;
Described coating process parameter: adopt door roll coater, 1. coating solids: 60 ~ 63%; Dope viscosity: 900 ~ 1500mpas; Coating pH:8.5 ~ 9.3; 2. coating weight: 14 ~ 20g/m
2; 3. coating machine paper web moisture is entered: 6 ~ 10%;
Described step slurry weight proportioning with slurry is: bleached sulphate softwood pulp 20 ~ 30, leaf wood bleached chemical thermomechanical pulp 30 ~ 40, poplar APMP 35 ~ 50.
2. a kind of high bulk coated printing paper manufacture method as claimed in claim 1, is characterized in that, each component of described coating by weight: 1. pigment 100 parts, wherein powdered whiting 50 ~ 90 parts, china clay 0 ~ 40 part, hollow type plastic pigment 5 ~ 15 parts; 2. carboxylic styrene butadiene latex 10 ~ 15 parts; Coating starch 4 ~ 6 parts; Polyvinyl alcohol 0.5 ~ 3 part; Sodium carboxymethylcellulose 0.5 ~ 2 part; Water repellent agent 0.5 ~ 1 part; Lubricant 1 ~ 2 part; Defoamer 0.01 ~ 0.05 part; Below all to the total number of pigment.
3. a kind of high bulk coated printing paper manufacture method as claimed in claim 1 or 2, it is characterized in that, described coating process condition is: external door roller and inside door roll nip linear pressure: 7 ~ 10 kN/m; Inside door roller and applicator roll linear load: 8 ~ 14 kN/m; Applicator roll linear load: 10 ~ 15 kN/m.
4. a kind of high bulk coated printing paper manufacture method as claimed in claim 1, is characterized in that,
Each slurry index:
Bleached sulphate softwood pulp: beating degree 40 ~ 45 ° of SR; Weight in wet base 6.8 ~ 7.5g;
Leaf wood bleached chemical thermomechanical pulp: beating degree 35 ~ 40 ° of SR; Weight in wet base 1.0 ~ 1.4g;
Poplar APMP: beating degree 42 ~ 50 ° of SR; Weight in wet base 1.0 ~ 1.4g.
5. a kind of high bulk coated printing paper manufacture method as claimed in claim 1, it is characterized in that, described auxiliary material to oven dry stock consumption with mass ratio range is: 1. cationic starch consumption 0.6 ~ 1.2%; 2. Polyamide-Polyamsne-Epichlorohydrin resin demand 0.2 ~ 0.5%; 3. alkyl ketene dimer consumption 0.1 ~ 0.3%; 4. polymine consumption 0.05 ~ 0.12%; 5. cationic polyacrylamide consumption 0.02 ~ 0.05%; 6. anionic polyacrylamide consumption 0.02 ~ 0.05%; 7. filler precipitated calcium carbonate consumption 12 ~ 20%.
6. the high bulk coated printing paper that in claim 4 or 5, method described in any one manufactures, is characterized in that, quantitative 70 ~ 150g/m
2; Bulk 1.3 ~ 1.5cm
3/ g; Smoothness>=the 500s of obverse and reverse, smoothness two sides difference < 10%; Print surface roughness≤2.0 μm of obverse and reverse; Glossiness>=40% of obverse and reverse, print gloss>=60% of obverse and reverse; Ink absorption≤28%; Picking speed>=1.5m/s; Lateral extensometer shrinkage≤2.5%; Whiteness 78 ~ 82%; Opacity>=90%; Horizontal folding strength>=8 time; Longitudinal fracture length>=the 4km of roll web; Surface absorption weight≤35 g/m
2; Moisture 5.0 ~ 7.0%.
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| CN102535240B (en) * | 2012-02-10 | 2014-01-22 | 金华盛纸业（苏州工业园区）有限公司 | Paper pulp and high-bulk energy-saving environment-friendly card prepared from same |
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