CN101787662B - Method for producing computer-to-plate lining paper - Google Patents
Method for producing computer-to-plate lining paper Download PDFInfo
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Abstract
The invention provides a method for producing computer-to-plate (CTP) lining paper, which is characterized in that: the lining paper is produced by using a common multi-cylinder long mesh paper machine, and the production process comprises the following steps: pulp beating, pulp proportioning, paper manufacturing with pulps, surface sizing, press polish and rewinding to produce base paper, then carrying out subsequent press polish treatment on the base paper to produce finished paper; the CTP lining paper is produced from paper pulps which are made of hardwood pulps and softwood pulps, chemical additive cationic starch, cationic dispersed rosin size and auxiliary sizing agent aluminum sulfate serving as raw materials. In the method, the cationic dispersed rosin size is used and the auxiliary sizing agent aluminum sulfate is added for two times on a proportioning pool and at an outlet of a fan pump, so that the problem of producing the CTP lining paper by using cationic dispersed rosin acid sizing technology is successfully solved. The pH value of the water extract of the produced base paper is kept within a range of 5.2 to 5.8, so that the key indicator of the paper, namely, the pH value of the water extract of the paper, meets the quality requirement on the CTP lining paper.
Description
Technical field
The present invention relates in order to produce the method for paper, be meant the production method of the direct seal carving version of a kind of computer (hereinafter to be referred as the CTP version, English full name Computer to plate) lining paper especially.
Background technology
The applying glue mode of existing paper has two kinds of neutral sizing and acid applying glues.Neutral sizing comprises AKD (English full name is Alkyl Ketene Dimen, i.e. alkyl ketene dimer) applying glue and ASA (English full name is Alkenyl Succinic Anhydride, i.e. alkyl succinic anhydride) applying glue.And acid applying glue is divided into applying glue of anion dispersion rosin size and cationic dispersion rosin size applying glue.At present, existing acid rosin size glue-applying technique is applied to the production of CTP version lining paper paper, exist following problem: 1. general acid sized paper water extracting pH value is all between 6.0-6.8, and the CTP version requires its lining paper water extracting pH value to remain on stronger acid 5.2-5.8, and existing acid rosin size applying glue can not reach the requirement of CTP version lining paper pH value; 2. use the anion rosin sizing and make into paper pH value between 5.2-5.8, need to reduce online and batching pH value, when producing, then can produce a large amount of foams and cause the production obstacle, become the paper product paper steam bubble point paper defects can occur, the requirement that becomes paper degree of sizing and appearance index all not to reach CTP version lining paper.Thereby the acid rosin size applying glue technology of existing CTP version lining paper production remained further to be improved.
Summary of the invention
Technical problem to be solved by this invention just is to overcome the defective that acid rosin size applying glue technology is adopted in existing CTP version lining paper production, a kind of application cationic dispersion rosin size is provided, change cationic dispersion rosin size glue-applying technique condition, divide 2 addings to help sizing agent aluminum sulfate joining the outlet of stock tank and fan pump, make CTP version lining paper water extracting pH value remain on the production method of the CTP version lining paper between the 5.2-5.8.
The production method of CTP version lining paper of the present invention uses common fourdrinier wire multi-cylinder paper machine to produce, and 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 preface, main production control parameter is as follows:
(1) mixed pulp weight portion proportioning:
Hardwood pulp: softwood pulp=70～90: 10～30,
Chemical addition agent: paper pulp=0.8～5: 100;
(2) defibrination freedom: be controlled at 200～350mlCSF;
(3) chemical addition agent is with respect to the proportioning of paper pulp weight:
Adding is 0.2-1.5% with respect to the weight percentage of the aluminum sulfate of paper pulp weight in the dosing chamber,
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%,
Fan pump import adding sun is 0.1-1.2% for the weight percentage of the aluminum sulfate of paper pulp weight;
(4) weight percentage of pressurized screen exit preservative adding is for investing the 0.012-0.015% of paper pulp weight mutually;
(5) online pH value: be controlled to be 3.8-4.0.
Above-mentioned described chemical addition agent comprises that also cationic polyacrylamide keeps auxiliary agent, anionic polyacrylamide keeps auxiliary agent etc., also can be cationic starch reinforcing agent, cationic dispersion rosin size sizing agent, help sizing agent aluminum sulfate, cationic polyacrylamide reservation auxiliary agent, anionic polyacrylamide to keep wherein one or more the mixture in the auxiliary agent.
The capital equipment of CTP version lining paper of the present invention production comprises: hydrabrusher, dosing chamber is copied preceding stock tank, header box, fan pump, 1880mm fourdrinier wire multi-cylinder paper machine, 1880mm supercalender etc.
The specification requirements such as the following table of the main raw material(s) of the production of CTP version lining paper of the present invention:
Other raw materials for production are conventional raw materials.
Making beating mode in the production process can adopt hardwood pulp and softwood pulp to separate making beating, also can adopt hardwood pulp to mix making beating with softwood pulp.
When producing, earlier hardwood pulp and softwood pulp are disperseed through hydrabrusher, after the disc mill making beating, the defibrination freedom is controlled at 200～350mlCSF, put into dosing chamber according to mixed weight part proportioning and make mixed pulp, in dosing chamber, add aluminum sulfate and other chemical addition agent by proportioning, control batching pH value is between the 3.8-4.0, the mixed slurry of preparation is sent into header box by stock tank before copying, in header box, add cationic dispersion rosin size, slurry is diluted to concentration expressed in percentage by weight 0.4-1.0% through header box to fan pump, add the final online of aluminum sulfate adjusting pH value continuously at the fan pump mouth and be 3.8-4.0, add preservative in the pressurized screen exit, slurry is through flow box, wet end, press section, drying section, top sizing, calecder section makes CTP version lining paper matrix paper through rewinding, and CTP version lining paper matrix paper gets final CTP version lining paper finished product after the supercalender superpressure.
The quality that CTP version lining paper of the present invention manufactures a finished product meets following quality index:
| Sequence number | Index name | Index |
| 1 | Basic weight | 40±1.5g/m 2 |
| 2 | Smoothness (front/reverse side) | ≥200/50s |
| 3 | Become paper water extracting pH value | 5.2～5.8 |
| 4 | Water imbibition (Cobb60 s) | ≤25g/m 2 |
| 5 | Fracture length (vertically/laterally) | ≥35/2.5km |
Advantage of the present invention just is to adopt application cationic dispersion rosin size sizing agent of the present invention, divide 2 times to add the process that helps sizing agent aluminum sulfate joining the outlet of stock tank and fan pump, successfully solved the acid glue-applying technique of anion dispersion rosin size and carried out the difficult problem that CTP version lining paper is produced: 1. under low pH value, used cationic dispersion rosin size and carry out the applying glue processing, solve existing anion rosin sizing and can not reach the problem that CTP version lining paper water extracting pH value requires, owing to change cationic dispersion rosin size glue-applying technique condition, the applying glue pH value of cationic dispersion rosin size is controlled between the 3.8-4.0, make CTP version lining paper water extracting pH value can remain on stronger acidity, the one-tenth paper water extracting pH value that finally reaches the basic paper of control production remains in the 5.2-5.8 scope, has guaranteed that the key index of paper becomes paper water extracting pH value to meet CTP version lining paper quality requirement.2. under low pH value, use CTP version lining paper that cationic dispersion rosin size carries out the process production of applying glue and meet the requirement of CTP version lining paper fully, and can import substitutes, make CTP version plate-making client greatly reduce production cost, have more far-reaching social benefit.3. the CTP version lining paper basic weight of using explained hereafter of the present invention is 40g/m
2, be lower than the imported product basic weight and be greater than 50g/m
2Index, greatly reduce product cost, saved the resources of production, and paper quality is good, has favorable economic benefit.4. using technology of the present invention does not have the obstacle of manufacturing paper with pulp when producing, can not produce a large amount of foams and cause the production obstacle, becomes the paper product paper steam bubble point paper defects can not occur, becomes paper degree of sizing and appearance index all to reach the quality requirement of CTP version lining paper fully.Therefore the production method of CTP version lining paper of the present invention has good application prospects.
Description of drawings
The present invention is described further below in conjunction with accompanying drawing;
Fig. 1 is the technological process block diagram of the production method of CTP version lining paper of the present invention.
With reference to Fig. 1, such as figure, the unit pulper, do not kowtow stock tank, mill and kowtowed stock tank and form pulping process, dosing chamber, transfer stock tank, copy front stock tank and header box and form the with slurry operation, fan pump, scummer, pressurized screen, flow box, wet end, press section, drying section and top sizing form manufactures paper with pulp and the top sizing operation, calender consists of the press polish operation, rewinding cell formation rewinding operation, and supercalender consists of follow-up press polish treatment process.
When producing, softwood pulp and hardwood pulp disperse to pulverize through the pulping process hydrabrusher, and slurry is stored in does not kowtow stock tank, and slurry is stored in after the mill making beating and kowtows stock tank; In the with slurry operation softwood pulp and hardwood pulp are added dosing chamber in proportion, in dosing chamber, add in proportion aluminum sulfate and chemical addition agent cationic starch etc., control batching pH value is between the 3.8-4.0, the mixed slurry of preparation is sent into the transfer stock tank, slurry is sent into and is copied front stock tank in the transfer stock tank, copy front stock tank slurry and be sent to header box, in header box, add in proportion cationic dispersion rosin size, slurry is diluted to concentration 0.4-1.0% through header box to the fan pump of the operation of manufacturing paper with pulp, add continuously the final online of aluminum sulfate adjusting pH value at the fan pump mouth and be 3.8-4.0, through the fan pump diluted slurry again through scummer, pressurized screen stream is fed into flow box, and add in proportion the reservation auxiliary agent in the pressurized screen exit, the online slurry enters the press section dehydration through flow box and wet end drainage and formation, enter again drying section through cylinder dried, top sizing, enter then the press polish operation, make CTP version lining paper matrix paper finally by the rewinding of rewinding operation, CTP version lining paper matrix paper gets final CTP version lining paper finished product after follow-up press polish treatment process supercalender superpressure.
Below be embodiments of the invention, the actual use of the present invention is not limited to embodiment.
Embodiment 1, the production method of CTP version lining paper
Adopt the production method of CTP version lining paper of the present invention to produce CTP version lining paper, the process units production capacity is 15t/d.
CTP version lining paper uses common 1880 fourdrinier wire multi-cylinder paper machines to produce, and 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 preface, main production control parameter is as follows:
(1) mixed pulp weight portion proportioning:
Hardwood pulp 420kg, softwood pulp 180kg, hardwood pulp: softwood pulp=70: 30,
The total consumption of chemical addition agent is 16.392kg, chemical addition agent: paper pulp=2.732: 100;
(2) the defibrination freedom is controlled at 305mlCSF;
(3) chemical addition agent is with respect to the proportioning of paper pulp weight:
Add aluminum sulfate 1.2kg in the dosing chamber, with respect to 0.2% of paper pulp weight,
Fill out cationic starch 6kg in the dosing chamber, with respect to 1.0% of paper pulp weight,
The header box place adds cationic dispersion rosin size 4.32kg, with respect to 0.72% of paper pulp weight,
The fan pump import adds aluminum sulfate 4.8kg continuously, with respect to 0.8% of paper pulp weight,
(4) preservative addition in pressurized screen exit is 0.072kg, with respect to 0.012% of paper pulp weight;
(5) online pH value: be controlled to be 3.8.
Other carries out according to the common long mesh paper making machine process control parameter of routine.
The capital equipment of CTP version lining paper production is listed in the table below:
| Sequence number | Device name | Specifications and models | Quantity | Remarks |
| 1 | Dosing chamber | 30m 3 | 1 | Concrete |
| 2 | Destroy the forebay | 30m 3 | 1 | Concrete |
| 3 | Header box | Self-control | 1 | Stainless steel |
| 4 | Fourdrinier wire multi-cylinder paper machine | 1880mm | 1 | Shanghai papermaking machinery plant makes |
| 5 | Supercalender | 1880mm | 1 | Germany |
The specification requirements such as the following table of the main raw material(s) that CTP version lining paper is produced:
Other raw materials for production are conventional raw materials.
When production is carried out, earlier hardwood pulp and softwood pulp are disperseed through hydrabrusher, disperse disposed slurry to be stored in and do not kowtow stock tank, after the mill making beating, be stored in again and kowtow stock tank, the defibrination freedom is 305mlCSF, according to 70: 30 weight portion proportionings 420kg hardwood pulp and 180kg softwood pulp are put into dosing chamber and make mixed pulp, in dosing chamber, add aluminum sulfate 1.2kg by proportioning, in fill out cationic starch 6kg, control batching pH value is 3.8, the mixed slurry of preparation is sent into the transfer stock tank, slurry is sent into and is copied preceding stock tank in the transfer pond, the stock tank slurry is sent to header box before copying, in header box, add cationic dispersion rosin size 4.32kg, slurry is diluted to concentration 0.4-1.0% through header box to fan pump, add aluminum sulfate 4.8kg continuously at the fan pump mouth, regulating final online pH value is 3.8, through the fan pump diluted slurry again through scummer, pressurized screen stream is fed into flow box, add 0.072kg cationic polyacrylamide class in the pressurized screen outlet and keep auxiliary agent, the online slurry enters the press section dehydration through flow box and wet end dehydration shaping, enter drying section again through cylinder dried, top sizing, enter the press polish operation then, after rewinding makes CTP version lining paper matrix paper, CTP version lining paper matrix paper makes the final CTP version lining paper finished product that the moisture content weight percentage is 4-6% after the supercalender superpressure.
The quality that CTP version lining paper manufactures a finished product meets following quality index:
| Sequence number | Index name | The index standard | The actual measurement index |
| 1 | Basic weight | 40±1.5g/m 2 | 40.2 |
| 2 | Smoothness (front/reverse side) | ≥200/50S | 207/52s |
| 3 | Become paper water extracting pH value | 5.2-5.8 | 5.7 |
| 4 | Water imbibition (Cobb60 s) | ≤25g/m 2 | 19.2 |
| 5 | Fracture length (vertically/laterally) | ≥3.5/2.5km | 4.0/2.9 |
The CTP version lining paper of producing conforms to quality requirements, and uses reflection good through reality.
Embodiment 2, the production method of CTP version lining paper
Adopt the production method of CTP version lining paper of the present invention to produce CTP version lining paper, the process units production capacity is 15t/d.
CTP version lining paper uses common 1880 fourdrinier wire multi-cylinder paper machines to produce, and 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 preface, main production control parameter is as follows:
(1) mixed pulp weight portion proportioning:
Hardwood pulp 450kg, softwood pulp 150kg, hardwood pulp: softwood pulp=75: 25,
The total consumption of chemical addition agent is 16.35kg, chemical addition agent: paper pulp=2.725: 100;
(2) the defibrination freedom is controlled at 310mlCSF;
(3) chemical addition agent is with respect to the proportioning of paper pulp weight:
Add aluminum sulfate 7.56kg in the dosing chamber, with respect to 1.26% of paper pulp weight,
Fill out cationic starch 6kg in the dosing chamber, with respect to 1.0% of paper pulp weight,
The header box place adds cationic dispersion rosin size 1.2kg, with respect to 0.20% of paper pulp weight,
The fan pump import adds aluminum sulfate 1.5kg continuously, with respect to 0.25% of paper pulp weight,
(4) preservative addition in pressurized screen exit is 0.09kg, with respect to 0.015% of paper pulp weight;
(5) online pH value: be controlled to be 4.0.
Other carries out according to the common long mesh paper making machine process control parameter of routine.
Specifications of raw materials, the process equipment produced are identical with embodiment 1 with production craft step.
The quality that CTP version lining paper manufactures a finished product meets following quality index:
| Sequence number | Index name | The index standard | The actual measurement index |
| 1 | Basic weight | 40±1.5g/m 2 | 41.0 |
| 2 | Smoothness (front/reverse side) | ≥200/50S | 230/55s |
| 3 | Become paper water extracting pH value | 5.2-5.8 | 5.2 |
| 4 | Water imbibition (Cobb60 s) | ≤25g/m 2 | 20.2 |
| 5 | Fracture length (vertically/laterally) | ≥3.5/2.5km | 3.5/2.7 |
The CTP version lining paper of producing conforms to quality requirements, and uses reflection good through reality.
Embodiment 3, the production method of CTP version lining paper
Adopt the production method of CTP version lining paper of the present invention to produce CTP version lining paper, the process units production capacity is 15t/d.
CTP version lining paper uses common 1880 fourdrinier wire multi-cylinder paper machines to produce, and 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 preface, main production control parameter is as follows:
(1) mixed pulp weight portion proportioning:
Hardwood pulp 480kg, softwood pulp 120kg, hardwood pulp: softwood pulp=80: 20,
The total consumption of chemical addition agent is 16.692kg, chemical addition agent: paper pulp=2.782: 100;
(2) the defibrination freedom is controlled at 320mlCSF;
(3) chemical addition agent is with respect to the proportioning of paper pulp weight:
Add aluminum sulfate 7.62kg in the dosing chamber, with respect to 1.27% of paper pulp weight,
Fill out cationic starch 6kg in the dosing chamber, with respect to 1.0% of paper pulp weight,
The header box place adds cationic dispersion rosin size 3.02kg, with respect to 0.50% of paper pulp weight,
The fan pump import adds aluminum sulfate 0.6kg continuously, with respect to 0.1% of paper pulp weight,
(4) preservative addition in pressurized screen exit is 0.072kg, with respect to 0.012% of paper pulp weight;
(5) online pH value: be controlled to be 4.0.
Other carries out according to the common long mesh paper making machine process control parameter of routine.
Specifications of raw materials, the process equipment produced are identical with embodiment 1 with production craft step.
The quality that CTP version lining paper manufactures a finished product meets following quality index:
| Sequence number | Index name | The index standard | The actual measurement index |
| 1 | Basic weight | 40±1.5g/m 2 | 40.5 |
| 2 | Smoothness (front/reverse side) | ≥200/50S | 221/53s |
| 3 | Become paper water extracting pH value | 5.2-5.8 | 5.7 |
| 4 | Water imbibition (Cobb60 s) | ≤25g/m 2 | 18.5 |
| 5 | Fracture length (vertically/laterally) | ≥3.5/2.5km | 3.5/2.6 |
The CTP version lining paper of producing conforms to quality requirements, and uses reflection good through reality.
Claims (10)
1. the production method of a computer-to-plate lining paper, it is characterized in that using 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 preface, main production control parameter is as follows:
(1) mixed pulp weight portion proportioning:
Hardwood pulp: softwood pulp=70～90: 10～30,
Chemical addition agent: paper pulp=0.8～5: 100;
(2) defibrination freedom: be controlled at 200～350mlCSF;
(3) chemical addition agent is with respect to the proportioning of paper pulp weight:
Adding is 0.2-1.5% with respect to the weight percentage of the aluminum sulfate of paper pulp weight in the dosing chamber,
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%,
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.
2. the production method of computer-to-plate lining paper according to claim 1 is characterized in that the main raw material(s) hardwood pulp is a bleached sulphate method commercial pulp, tensile index 〉=50.0N.m/g, tear index 〉=6.5mN.m
2/ g, burst index 〉=3.0kPa.m
2/ g; Softwood pulp is bleaching sulphite process commercial pulp, tensile index 〉=42.0N.m/g, tear index 〉=7.0mN.m
2/ g, burst index 〉=2.5kPa.m
2/ g, water extracting pH value is≤6.3; Cationic dispersion rosin size percentage by weight solid content 35.0 ± 1.0% is measured viscosity＜50mPa.s, pH value 2.1-3.7 under 25 ℃, 50 rev/mins conditions; Al in the aluminum sulfate
2O
3Weight percentage 〉=15.8%, Fe
2O
3Weight percentage≤0.35%.
3. the production method of computer-to-plate lining paper according to claim 1 and 2 is characterized in that the making beating mode in the production process adopts hardwood pulp and softwood pulp to separate making beating.
4. the production method of computer-to-plate lining paper according to claim 1 and 2 is characterized in that the quality index of CTP version lining paper finished product is: basic weight 40 ± 1.5g/m
2, front/reverse side smoothness 〉=200/50S, water extracting pH value 5.2～5.8, water imbibition Cobb60
S≤ 25g/m
2, vertically/horizontal fracture length 〉=3.5/2.5km.
5. the production method of computer-to-plate lining paper according to claim 1 and 2 is characterized in that main production control parameter is as follows:
(1) mixed pulp weight portion proportioning:
Hardwood pulp 420kg, softwood pulp 180kg, the total consumption of chemical addition agent is 16.392kg;
(2) the defibrination freedom is controlled at 305mlCSF;
(3) chemical addition agent is with respect to the proportioning of paper pulp weight:
Add aluminum sulfate 1.2kg in the dosing chamber, fill out cationic starch 6kg in the dosing chamber, the header box place adds cationic dispersion rosin size 4.32kg, and the fan pump import adds aluminum sulfate 4.8kg continuously;
(4) preservative addition in pressurized screen exit is 0.072kg;
(5) online pH value: be controlled to be 3.8.
6. the production method of computer-to-plate lining paper according to claim 1 and 2 is characterized in that main production control parameter is as follows:
(1) mixed pulp weight portion proportioning:
Hardwood pulp 450kg, softwood pulp 150kg, the total consumption of chemical addition agent is 16.35kg;
(2) the defibrination freedom is controlled at 310mlCSF;
(3) chemical addition agent is with respect to the proportioning of paper pulp weight:
Add aluminum sulfate 7.56kg in the dosing chamber, fill out cationic starch 6kg in the dosing chamber, the header box place adds cationic dispersion rosin size 1.2kg, and the fan pump import adds aluminum sulfate 1.5kg continuously;
(4) preservative addition in pressurized screen exit is 0.09kg;
(5) online pH value: be controlled to be 4.0.
7. the production method of computer-to-plate lining paper according to claim 1 and 2 is characterized in that main production control parameter is as follows:
(1) mixed pulp weight portion proportioning:
Hardwood pulp 480kg, softwood pulp 120kg, the total consumption of chemical addition agent is 16.692kg;
(2) the defibrination freedom is controlled at 320mlCSF;
(3) chemical addition agent is with respect to the proportioning of paper pulp weight:
Add aluminum sulfate 7.62kg in the dosing chamber, fill out cationic starch 6kg in the dosing chamber, the header box place adds cationic dispersion rosin size 3.02kg, and the fan pump import adds aluminum sulfate 0.6kg continuously;
(4) preservative addition in pressurized screen exit is 0.072kg;
(5) online pH value: be controlled to be 4.0.
8. the production method of computer-to-plate lining paper according to claim 4 is characterized in that the quality index of CTP version lining paper finished product is: basic weight 40.2g/m
2, front/reverse side smoothness 207/52s, water extracting pH value 5.7, water imbibition Cobb60
S19.2g/m
2, vertically/horizontal fracture length 4.0/2.9km.
9. the production method of computer-to-plate lining paper according to claim 4 is characterized in that the quality index of CTP version lining paper finished product is: basic weight 41.0g/m
2, front/reverse side smoothness 230/55S, water extracting pH value 5.2, water imbibition Cobb60
S20.2g/m
2, vertically/horizontal fracture length 3.5/2.7km.
10. the production method of computer-to-plate lining paper according to claim 4 is characterized in that the quality index of CTP version lining paper finished product is: basic weight 40.5g/m
2, front/reverse side smoothness 221/53S, water extracting pH value 5.7, water imbibition Cobb60
S18.5g/m
2, vertically/horizontal fracture length 3.5/2.6km.
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| CN103343473B (en) * | 2013-06-05 | 2015-07-29 | 浙江凯丰纸业有限公司 | A kind of manufacturing system of CTP version packing paper |
| CN103966903B (en) * | 2014-05-27 | 2016-05-25 | 成都印钞有限公司 | A kind of adding method and adding set thereof for paper making technique anti-fake material |
| CN104018388B (en) * | 2014-06-16 | 2016-04-13 | 镇江大东纸业有限公司 | Plate mat body paper and production method thereof |
| CN107558298A (en) * | 2016-01-15 | 2018-01-09 | 蒋坤达 | A kind of sizing agent and preparation method thereof |
| 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 |
| CN106368049B (en) * | 2016-09-06 | 2018-12-11 | 镇江大东纸业有限公司 | The production method of rice weeding paper |
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| CN111364268A (en) * | 2020-03-31 | 2020-07-03 | 中山永发纸业有限公司 | Production process of low-basis-weight middle partition paper |
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| CN111622017B (en) * | 2020-05-08 | 2022-02-08 | 仙鹤股份有限公司 | Low-air-permeability CTP plate lining paper and preparation method thereof |
| CN113026416B (en) * | 2021-03-30 | 2022-11-11 | 山东仁丰特种材料股份有限公司 | Method and device for sticking cylinder of anti-sticking roller of long-net large-cylinder paper machine |
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2010
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Address after: 212132, No. 8, Dongfang Road, Dagang District, Zhenjiang New District, Jiangsu, Zhenjiang Patentee after: ZHENJIANG DADONG PULP & PAPER Co.,Ltd. Address before: 212001 No. 61, Soochow Road, Jiangsu, Zhenjiang Patentee before: ZHENJIANG DADONG PULP & PAPER Co.,Ltd. |