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A kind of production process of oil-proof forming paper

A production process and technology for forming paper, which is applied in the field of papermaking, and can solve problems such as difficult control of concentration, incomplete pulping degree of pulping, and inability of surface glue to play its respective functions, etc.

Active Publication Date: 2017-10-10
WELBON SPECIAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the disadvantages of the above-mentioned process are: the pulping degree of the slurry is not complete, the surface glue after the preparation of the oxidized starch and the anti-oil agent cannot play their respective functions, and the concentration of the former is not easy to control, and the amount of the latter is relatively large.
[0007] In view of the difference in performance and application between forming paper and greaseproof paper, there is no published technology of using oil-repellent agent on forming paper to make forming paper have oil-proof function. Aiming at the above shortcomings, a solution is now provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A production process of oil-proof formed paper, which comprises the following steps: wood pulp disintegration, beating, pulp blending, papermaking and other processes;

[0021] Wood pulp disintegration: Add Wuzhen brand bleached kraft softwood pulp and Bukuo brand bleached kraft hardwood pulp with a weight ratio of 80:20 to the hydropulper;

[0022] Beating: After being mixed and crushed by a hydraulic pulper, it is poured into the knocking tank, soaked for about two hours, and then double-disc milled for beating. Control at 4.5%; pulping is divided into two times, the half pulp is 50 ° SR, wet weight 8g, the finished pulp is 76 ° SR, wet weight 5.0g, and the beaten slurry is poured into the pulp tank;

[0023] Mixing pulp: Pour cassava cationic starch with a substitution degree of 0.033 and a boiled concentration of 5% into the pulp mixing tank together with the slurry in the pulping tank, and the dosage of cassava cationic starch is 10kg / ton of paper;

[0024] After ...

Embodiment 2

[0029] A production process of oil-proof formed paper, which comprises the following steps: wood pulp disintegration, beating, pulp blending, papermaking and other processes;

[0030] Wood pulp disintegration: Add Wuzhen brand bleached kraft softwood pulp and Bukuo brand bleached kraft hardwood pulp with a weight ratio of 90:10 to the hydropulper;

[0031] Beating: After being mixed and crushed by a hydraulic pulper, it is poured into the knocking tank, soaked for about two hours, and then double-disc milled for beating. It is controlled at 4.0%; pulping is divided into two times, the degree of beating of the half pulp is 53°SR, the wet weight is 6g, the degree of beating of the pulp is 74°SR, and the wet weight is 4.0g, and the beaten pulp is poured into the pulping tank;

[0032] Mixing pulp: Pour cassava cationic starch with a substitution degree of 0.033 and a boiling concentration of 5% into the pulp mixing tank together with the slurry in the pulping tank, and the dosage...

Embodiment 3

[0038] A production process of oil-proof formed paper, which comprises the following steps: wood pulp disintegration, beating, pulp blending, papermaking and other processes;

[0039] Wood pulp disintegration: Add Wuzhen brand bleached kraft softwood pulp and Bukuo brand bleached kraft hardwood pulp with a weight ratio of 85:15 to the hydropulper;

[0040] Beating: After being mixed and crushed by a hydraulic pulper, it is poured into the knocking tank, soaked for about two hours, and then double-disc milled for beating. It is controlled at 4.2%; pulping is divided into two times, the half pulp is 52°SR, wet weight 6g, the pulping degree is 75°SR, wet weight is 4.5g, and the beaten pulp is poured into the pulp tank;

[0041] Mixing pulp: Pour cassava cationic starch with a substitution degree of 0.033 and a boiled concentration of 5% into the pulp mixing tank together with the slurry in the pulping tank, and the dosage of cassava cationic starch is 12kg / ton of paper;

[0042]...

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PUM

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Abstract

The invention discloses an oil-proof forming paper production process which comprises the following steps: mixing and repulping bleached sulfate softwood pulp and bleached sulfate hardwood pulp in a weight ratio of (80-90):(10-20) into a hydrapulper; then, pouring into a beating pond, soaking for two hours, and performing double disc refiner pulping, wherein the pulping concentration is controlled to be 4.0%-4.5%; pulping twice, and pouring the pulp into a pulping tank; pouring tapioca cationic starch of which the substitution degree is 0.033 and the boiling concentration is 5%, a PPE wet strength agent which is diluted with five times of water, and the pulp in the pulping tank into a pulp mixing tank; and diluting the pulp in the pulp mixing tank in a slushing tank till the concentration is 0.5%-1.5%, performing netting molding and squeezing dehydration, drying, spraying an oil-proofing agent, and coating with a surface adhesive. Due to addition of the oil-proofing agent, oil-proof forming paper produced by using the process is capable of effectively preventing seeping of oily essence and fragrance from a filter, and fluorocarbon groups of the oil-proofing agent form vertical compact nets on the surface of the paper to form low surfaces which cannot be moistened by oil easily.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and relates to a production process of forming paper, in particular to a production process of oil-proof forming paper. Background technique [0002] Grease-proof forming paper is developed on the basis of ordinary filter rod forming paper. The main purpose of forming paper is to wrap the tow of cigarette filters. With the progress of society, people have more and more demands for personalized cigarettes, and various China Tobacco companies have also developed various products in order to meet the needs of consumers. As we all know, the smoking taste of each cigarette is fixed, but this method has been difficult to meet the growing consumer demand. Therefore, how to change the smoking taste of cigarettes has become the first choice for the development of various China Tobacco companies. [0003] At present, major Chinese tobacco companies have successively developed a new type of filter tip,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/14D21H23/24
CPCD21H21/14D21H23/24
Inventor 陈阴杰黄德松游军杨金桥陈飞范金国
Owner WELBON SPECIAL MATERIALS CO LTD