CN103276628A - CTP packing paper and its preparation method - Google Patents
CTP packing paper and its preparation method Download PDFInfo
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- CN103276628A CN103276628A CN2013102242602A CN201310224260A CN103276628A CN 103276628 A CN103276628 A CN 103276628A CN 2013102242602 A CN2013102242602 A CN 2013102242602A CN 201310224260 A CN201310224260 A CN 201310224260A CN 103276628 A CN103276628 A CN 103276628A
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Abstract
The invention relates to a preparation method of CTP packing paper, comprising the following steps: 1) mixing bleached softwood pulp and hardwood pulp in proportion and repulping to prepare a slurry; 2) pulping the repulped liquid slurry to make wood pulp cellulose to be divided and broomed; 3) adding a starch pulped slurry strengthening aid; 4) purifying the prepared slurry, drying the slurry through a fourdrinier wire moulded drying cylinder, and applying a surface strengthening aid during the middle section of the drying process so as to raise wear resistance of the paper surface; 5) finishing the dried paper through soft calender to raise surface smoothness; 6) balancing internal water content to raise flatness of the paper; and 7) carrying out slitting, destaticization, dedusting and high cleaning treatments on the paper roll which has undergone paper making by a paper machine to prepare the finished product according to specification requirements so as to obtain the product. The CTP packing paper prepared by the preparation method has characteristics of good strength, high cleanliness, good smoothness, neutral pH value of paper page and the like.
Description
Technical field
The present invention relates to field of papermaking, relate in particular to a kind of CTP version packing paper and preparation method thereof.
Background technology
CTP is the abbreviation of " Computer To Plate ", is a kind of CTP technology.The CTP technology adopts the digitlization workflow, changes literal, image into numeral with laser scanning, directly outputs on the CTP version and makes forme, has saved this material of film and artificial layout process, makes printing enterprise enter one " digital world ".Scribbling photosensitive resin layer on CTP version surface, is that its coating of protection is not injured storing, transport in the process, need serve as a contrast last layer protection packing paper between every CTP version, is referred to as CTP version packing paper.
Chinese invention patent (application number: 201010018333.9 applyings date: 2010-01-14) disclose a kind of production method of computer-to-plate lining paper, use common fourdrinier wire multi-cylinder paper machine to produce, production craft step comprises: pull an oar, join slurry, manufacture paper with pulp and top sizing, press polish, rewinding are made matrix paper, handle through follow-up press polish and make finished paper; Paper pulp and chemical addition agent cationic starch, the cationic dispersion rosin size sizing agent that the production of CTP version lining paper is made with hardwood pulp, softwood pulp, to help sizing agent aluminum sulfate be raw material, wherein join stock tank and the operation fan pump outlet of manufacturing paper with pulp divides to add respectively for 2 times and helps sizing agent aluminum sulfate in tankman's order, main production control parameter is as follows: (1) mixed pulp weight portion proportioning: hardwood pulp: softwood pulp=70～90: 10～30, and chemical addition agent: paper pulp=0.8～5: 100; (2) defibrination freedom: control is at 200～350mlCSF; (3) chemical addition agent is with respect to the proportioning of paper pulp weight: the weight percentage that adds in the dosing chamber with respect to the aluminum sulfate of paper pulp weight is 0.2-1.5%, the weight percentage that the header box place adds with respect to the cationic dispersion rosin size of paper pulp weight is 0.2-1.0%, the weight percentage that dosing chamber adds with respect to the cationic starch of paper pulp weight is 1.0-1.5%, and the weight percentage that the fan pump import adds with respect to the aluminum sulfate of paper pulp weight is 0.1-1.2%; (4) weight percentage of pressurized screen exit preservative adding is the 0.012-0.015% with respect to paper pulp weight; (5) online pH value: be controlled to be 3.8-4.0.This patent applies filler in paper making process, dust has the friction injury to forme like this.In addition, the process of manufacturing paper with pulp adopts aluminum sulfate, makes the pH value slant acidity of paper, influences the photosensitive property of forme thermo-sensitive material.
Summary of the invention
In order to solve above-mentioned technical problem, an object of the present invention is to provide a kind of preparation method of CTP version packing paper, another object of the present invention provides the CTP version packing paper that above-mentioned method prepares, it is good that this paper has intensity, cleanliness factor height, planarization are good, and the paper pH value is characteristics such as neutrality.
In order to realize first above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of preparation method of CTP version packing paper, this method comprises the steps:
1) to make concentration in the ratio mixing size degradation of 1:2.0 ~ 1:4 be 3 ~ 8% slurries to bleaching needle slurry and broad-leaved slurry;
2) the liquid slurry night behind the size degradation, make the wood pulp fibre wire-dividing broom purification through the making beating processing;
3) add the starch reinforcing aids in the slurry after making beating is handled, the addition of starch reinforcing aids is 0.2 ~ 2.0% of over dry slurry gross mass;
4) prepared slurry is by after the purified treatment, and by the fourdrinier forming cylinder dried, applicator surface increases auxiliary agent by force at the drying process middle part, improves the paper surface abrasion resistance;
5) dried paper improves surface smoothness by the soft calendaring ornamenting;
6) carry out the internal moisture balance, improve the flatness of paper;
7) paper roll behind the paper machine making is made finished product by specification requirement by cutting, go the high cleaning of electrostatic precipitation, obtains described product.
As preferably, described step 1) bleaching needle slurry and broad-leaved slurry are made the slurries that concentration is 4-5% in the ratio mixing size degradation of 1:2.3-1:3.
As preferably, described step 2) the degree of beating 41-43 ° SR after making beating is handled, fiber wet weight 2.5-3.5.
As preferably, described step 3) starch reinforcing aids adopts quaternary ammonium cation starch or (whether have other material to replace, list as ask the visitor in)
As preferably, the viscosity of its 6% concentration solution of described quaternary ammonium cation starch after 95 ℃ of gelatinizations is 400-1000mpa.S, and substitution value is 0.025-0.035.
As preferably, described step 4) surface reinforcing aids is the mixed solution (whether have other material to replace, list as ask the visitor in) of cationic oxidation starch and fast ripe type Cypres.
As preferably, described cationic oxidation starch, the viscosity of its 6% concentration solution after 95 ℃ of gelatinizations is 8-20mpa.S, substitution value is 0.014-0.018; The Main Ingredients and Appearance of described fast ripe type Cypres is cation acrylic fourth lipopolymer, its viscosity of 25 ℃＜50Brookfiold1#l rotor), density 1.0-1.3g/cm
3, the two makes paste liquid in the 1:1-1:0.5 ratio, and applied amounts is counted 0.4-0.6g/m with dry weight
2The purpose of the two and usefulness is further to improve surface strength and the resistance to water soak of paper.
As preferably, described step 6) internal moisture balance adopts the rotating disk sprayer unit to realize, described rotating disk sprayer unit is by the high velocity fog rotating disk that is set up in parallel of row and liquid-supply unit control, spinning disc atomizer accept will stablize behind the supply liquid and imperceptible fan-shaped water smoke continuous injection to the page surface.
As preferably, described step 7) is gone electrostatic precipitation to adopt to install on the rewinding cutting apparatus to destatic the dust suction purifier and is realized.Paper after cutting machine is cut is eliminated paper static by discharging rod, reduces the absorption affinity of dust, utilizes the negative pressure in dust suction district that the dust paper scrap is siphoned away, and reaches the purpose of clean surface.
As preferably, described electrostatic precipitator comprises power supply, blower fan, dust filter unit, ionization generator and high-tension transformer, the ionization generator is arranged on a side of paper, the ionization generator is respectively equipped with and send subregion, ionized region and air draught district, send subregion, the setting in ionized region and air draught district is opposite with the paper direction of advance, the ionization generator send subregion to be provided with air outlet over against that side of paper, air outlet links to each other with fan outlet by snorkel is set, the air draught district is provided with the inlet scoop, the inlet scoop links to each other with air inlet by aspiration channel is set, described dust filter unit is arranged on the aspiration channel, described ionized region is arranged on and send between subregion and the air draught district, ionized region arranges the electrion plug, and the electrion plug is connected with described high-tension transformer by lead, and high-tension transformer is connected with power supply.
As preferably, described ionization generator is made of last ionization generator and two in following ionization generator, and last ionization generator and following ionization generator arranged in dislocation be in the both sides of paper, and has lowering or hoisting gear respectively.
As preferably, described ionization generator is apart from the coverage 3-5mm of paper.
As preferably, be alternating current, direct current or pulse direct current by the electric current behind the high-tension transformer.
As preferred again, described electric current is alternating current, and ac high-voltage transformer is raised to 7KV-10KV with the 220V input voltage, and discharge electrode alternately is positive voltage and negative voltage with the 50Hz frequency.The electrion plug produces highfield, and air molecule is ionized, and the discharge electrode tip alternately produces negative ions, and when the charged object surface was positive potential, anion neutralized it, and the surface is negative potential, and cation neutralizes it.Simultaneously because the microseism that AC field produces is swung, make the air miscarriage in AC field zone give birth to microturbulent motion, make the easier removal of eliminating behind the static of dust.
As preferably, described ionization generator surface is provided with honeycomb cellular type catch net lattice.
In order to realize second above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of CTP version packing paper, the above-mentioned any described method of technical scheme of this CTP version packing paper makes.
The present invention does not apply filler owing to adopted above-mentioned technical scheme in paper making process, reduce dust to the friction injury of forme, does not carry out plasm-glue-blending, reduces sizing agent to the photosensitive property influence of photosensitive material.Simultaneously by in paper pulp, adding the starch reinforcing aids, at Dryer Section of Paper Machine applicator surface reinforcing aids, portion carries out water balance at paper machine soft calendaring, go the electrostatic precipitation cleaning at the rewinding cutting machine, it is good that the CTP version packing paper for preparing has intensity, characteristic such as cleanliness factor height, planarization are good, page pH value partial neutral.
Description of drawings
Fig. 1 is process chart of the present invention.
Fig. 2 is the mounting structure schematic diagram of surface impregnation roller.
Fig. 3 is the mounting structure schematic diagram of sprayer unit.
Fig. 4 is electrostatic precipitation Unit Installation structural representation.
Fig. 5 is structural representation of the present invention.
Fig. 6 is the structural representation of ionization generator.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is made a detailed explanation.
The first step: selecting for use 30% import bleaching needle-point leaf pulp to join 70% import bleached hardwood pulp is raw material, and two kinds of slurries mix the slurries that size degradation becomes 4.5% concentration in the waterpower disintegrator.
Second step: the paper pulp behind the size degradation is handled degree of beating 41-43 ° SR, fiber wet weight 2.5-3.5 through the making beating of four series connection double plate mills.
The 3rd step: the slurry after making beating is handled is added in 95 ℃ of gelatinizations in joining stock tank good, is equivalent to the starch reinforcing aids of over dry slurry 0.5 ~ 1.0%.The starch reinforcing aids adopts quaternary ammonium cation starch, and the viscosity of its 6% concentration solution after 95 ℃ of gelatinizations is 400-1000mpa.S, and substitution value is 0.025-0.035.The mass percent of adding in paper pulp is 0.5-1%.
The 3rd step: prepared slurry goes up net forming, dry, the oven dry of pressure after screening purified treatment.
The 4th step: at paper machine middle part, will be dried to the CTP version packing paper of the about 3-5% of moisture, the surperficial reinforcing aids that dipping modulates, the Main Ingredients and Appearance of surperficial reinforcing agent is the mixed liquor of cationic oxidation starch and fast ripe Cypres.The adapted ratio of the two is 1:1.2, and the concentration of maceration extract is 2.5-3.0%, and the concentration of maceration extract is decided according to the adsorbance of basic paper, and the two is to improve surface strength performance and the anti-moisture absorption property of paper with purpose also.
The 4th step: the packing paper behind the dipping is proceeded follow-up drying, and the soft calendaring ornamenting is handled.
The 5th step: the paper after the ornamenting, make paper reach the equilibrium of full width moisture content fast, guarantee the planarization under environmental condition of paper.Water balance adopts the rotating disk sprayer unit to realize, high velocity fog rotating disk and liquid-supply unit control that described rotating disk sprayer unit is set up in parallel by a row, spinning disc atomizer accept will stablize behind the supply liquid and imperceptible fan-shaped water smoke continuous injection to the page surface.
The 6th step: send rewinding machine to cut the electrostatic precipitation that disappears at last and obtain CTP version packing paper finished product.Go electrostatic precipitation to adopt to install on the rewinding cutting machine to destatic the dust suction purifier and realize, destatic the dust suction purifier and comprise ac high-voltage discharging rod and dust suction district.Paper after cutting machine is cut is eliminated paper static by discharging rod, reduces the absorption affinity of dust, utilizes the negative pressure in dust suction district that the dust paper scrap is siphoned away, and reaches the purpose of clean surface.
The CTP version packing paper measuring physical properties that above-mentioned method makes
| Quantitatively | Tensile strength | Tearability | Smoothness | Surface strength |
| 37.1 g/㎡ | 4.32KN/m | 228 Mn | 54.2S | ＞4.6 m/s |
Method shown in the embodiment 1 can adopt the manufacturing system of a kind of CTP version packing paper as shown in Figure 1 to produce, this system according to production procedure comprise waterpower disintegrator, mill beater successively, join stock tank, pulp purifiation device, fourdrinier machine, pressure roller, first group of drying cylinder, surface impregnation roller, second group of drying cylinder, soft press-polishing machine, sprayer unit, reel machine, cutting machine, electrostatic precipitation device and rewinding machine.The described stock tank of joining is provided with starch reinforcing aids interpolation equipment.As shown in Figure 2, body paper 1 is after through first group of drying cylinder, enter the surface impregnation roller by the guiding deflector roll, the surface impregnation roller comprises dipping rubber roll 2 and dipping steel rider 3, dipping rubber roll 2 and the 3 tangent settings of dipping steel rider arrange the surface at the upper space that floods rubber roll 2 and dipping steel rider 3 and increase auxiliary agent maceration extract 4 by force.As shown in Figure 3, body paper 1 is through passing through second group of drying cylinder 5 behind the surface impregnation, enter soft press-polishing machine 6 by the guiding deflector roll then, described sprayer unit 7 is arranged on soft press-polishing machine 6 rear sides, sprayer unit 7 adopts the rotating disk sprayer unit, high velocity fog rotating disk and liquid-supply unit control that the rotating disk sprayer unit is set up in parallel by a row, spinning disc atomizer accept will to stablize behind the supply liquid and imperceptible fan-shaped water smoke continuous injection to the page surface, make paper reach the equilibrium of full width moisture content fast, guarantee the planarization under environmental condition of paper, pass through reel machine 8 coil papers through the body paper 1 behind the rotating disk sprayer unit.As shown in Figure 4, the paper roll on the reel machine 8 is cut through cutting machine 9, cuts into the specification of requirement, and the paper slip after cutting destatics dust suction through electrostatic precipitation device 10, and the paper slip that process destatics after the dust suction batches at rewinding machine 11.
As shown in Figure 5, described electrostatic precipitator comprises power supply 24, blower fan 23, dust filter unit 13, goes up ionization generator 21, following ionization generator 22 and high-tension transformer 25, last ionization generator 21 and following ionization generator 22 arranged in dislocation are in the both sides of paper, and having lowering or hoisting gear respectively, last ionization generator 21 and following ionization generator 22 are 3-5mm apart from the coverage of paper.As shown in Figure 6; last ionization generator 21 and following ionization generator 22 are respectively equipped with and send subregion 16; ionized region 17 and air draught district 18; send subregion 16; the setting in ionized region 17 and air draught district 18 is opposite with the paper direction of advance; arrow is represented paper orientation; last ionization generator 21 and following ionization generator 22 are provided with air outlet over against the subregion 16 that send of that side of paper; air outlet links to each other with blower fan 23 air outlets by snorkel 20 is set; air draught district 18 is provided with the inlet scoop; the inlet scoop links to each other with blower fan 23 air inlets by aspiration channel 12 is set; described dust filter unit 13 is arranged on the aspiration channel 12; described ionized region 17 is arranged on and send between subregion 16 and the air draught district 18, and the surface of last ionization generator 21 and following ionization generator 22 is provided with honeycomb cellular type catch net lattice.Ionized region 17 arranges electrion plug 19 respectively, electrion plug 19 is connected with described high-tension transformer 25 by lead, high-tension transformer 25 is connected with power supply 24, be alternating current by the electric current behind the high-tension transformer 25, ac high-voltage transformer 25 is raised to 7KV-10KV with the 220V input voltage, and discharge electrode alternately is positive voltage and negative voltage with the 50Hz frequency.
Claims (10)
1. the preparation method of a CTP version packing paper is characterized in that this method comprises the steps:
1) to make concentration in the ratio mixing size degradation of 1:2.0 ~ 1:4 be 3 ~ 8% slurries to bleaching needle slurry and broad-leaved slurry;
2) the liquid slurry night behind the size degradation, make the wood pulp fibre wire-dividing broom purification through the making beating processing;
3) add the starch reinforcing aids in the slurry after making beating is handled, the addition of starch reinforcing aids is 0.2 ~ 2.0% of over dry slurry gross mass;
4) prepared slurry is by after the purified treatment, and by the fourdrinier forming cylinder dried, applicator surface increases auxiliary agent by force at the drying process middle part, improves the paper surface abrasion resistance;
5) dried paper improves surface smoothness by the soft calendaring ornamenting;
6) carry out the internal moisture balance, improve the flatness of paper;
7) paper roll behind the paper machine making is made finished product by specification requirement by cutting, go the high cleaning of electrostatic precipitation, obtains described product.
2. the preparation method of a kind of CTP version packing paper according to claim 1 is characterized in that step 1) bleaching needle slurry and broad-leaved slurry mix size degradation in the ratio of 1:2.3-1:3 and make the slurries that concentration is 4-5%.
3. the preparation method of a kind of CTP version packing paper according to claim 1 is characterized in that step 2) degree of beating 41-43 ° SR after making beating is handled, fiber wet weight 2.5-3.5.
4. the preparation method of a kind of CTP version packing paper according to claim 1 is characterized in that step 3) starch reinforcing aids adopts quaternary ammonium cation starch.
5. the preparation method of a kind of CTP version packing paper according to claim 1 is characterized in that the viscosity of its 6% concentration solution of quaternary ammonium cation starch after 95 ℃ of gelatinizations is 400-1000mpa.S, and substitution value is 0.025-0.035.
6. the preparation method of a kind of CTP version packing paper according to claim 1 is characterized in that step 4) surface reinforcing aids is the mixed solution of cationic oxidation starch and fast ripe type Cypres.
7. the preparation method of a kind of CTP version packing paper according to claim 1 is characterized in that described cationic oxidation starch, and the viscosity of its 6% concentration solution after 95 ℃ of gelatinizations is 8-20mpa.S, and substitution value is 0.014-0.018; The Main Ingredients and Appearance of described fast ripe type Cypres is cation acrylic fourth lipopolymer, its viscosity of 25 ℃＜50Brookfiold1#l rotor), density 1.0-1.3g/cm
3, the two makes paste liquid in the 1:1-1:0.5 ratio, and applied amounts is counted 0.4-0.6g/m with dry weight
2
8. the preparation method of a kind of CTP version packing paper according to claim 1, it is characterized in that step 6) internal moisture balance adopts the rotating disk sprayer unit to realize, described rotating disk sprayer unit is by the high velocity fog rotating disk that is set up in parallel of row and liquid-supply unit control, spinning disc atomizer accept will stablize behind the supply liquid and imperceptible fan-shaped water smoke continuous injection to the page surface.
9. the preparation method of a kind of CTP version packing paper according to claim 1 is characterized in that step 7) goes electrostatic precipitation to adopt to install on the rewinding cutting apparatus to destatic the dust suction purifier and realize.
10. the CTP version packing paper that makes of any described method of claim of claim 1 ~ 8.
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| CN106049164A (en) * | 2016-06-07 | 2016-10-26 | 岳阳林纸股份有限公司 | Production method of PS plate interleaving paper |
| 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 |
| CN111608010A (en) * | 2020-04-17 | 2020-09-01 | 仙鹤股份有限公司 | Preparation method of high-strength low-static CTP lining paper |
| CN111622017A (en) * | 2020-05-08 | 2020-09-04 | 仙鹤股份有限公司 | Low-air-permeability CTP plate lining paper and preparation method thereof |
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Cited By (5)
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| CN106049164A (en) * | 2016-06-07 | 2016-10-26 | 岳阳林纸股份有限公司 | Production method of PS plate interleaving paper |
| CN111608010A (en) * | 2020-04-17 | 2020-09-01 | 仙鹤股份有限公司 | Preparation method of high-strength low-static CTP lining paper |
| CN111608010B (en) * | 2020-04-17 | 2021-12-31 | 仙鹤股份有限公司 | Preparation method of high-strength low-static CTP lining paper |
| 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 |
| CN111622017A (en) * | 2020-05-08 | 2020-09-04 | 仙鹤股份有限公司 | Low-air-permeability CTP plate lining paper and preparation method thereof |
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Address after: 324400 No. 30 Jinxing Avenue, Longyou Industrial Park, Zhejiang Province Patentee after: ZHEJIANG KAIFENG NEW MATERIAL CO., LTD. Address before: 324400 Zhejiang Province, Quzhou city Longyou County Industrial Park (North) Zhejiang Kaifeng Paper Co. Ltd. Patentee before: Zhejiang Kaifeng Paper Industry Co., Ltd. |