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Method for manufacturing thermo-sensitive industrial precoating base paper

A manufacturing method and pre-coating technology, applied in the field of papermaking, can solve problems such as low quality and paper yield, high requirements for coating machines, and lack of competitiveness, so as to reduce coating processing procedures, huge market space, and simplify production processes Effect

Inactive Publication Date: 2015-11-11
HUNAN HENGHAN HIGH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most manufacturers have transformed into high-end thermal paper with higher profits, and the high-end thermal paper is mainly three-proof thermal paper, which has high requirements for coating machines and needs to be coated three times. The thermal coating machine has only two coating heads, and the top coating needs to be recoated once to obtain the three-proof thermal paper, so there is a lot of waste, and the quality and paper yield are low
However, adding a coating head to the equipment modification of the coating machine is costly, and the effect is poor and uncompetitive.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] The manufacturing process of thermal industrial pre-coated base paper is that the pulp enters the paper machine after beating, filling, sizing, whitening, purification, screening and other processes, and then dewatering, pressing, etc. After drying, the back is directly sizing and the front is directly sizing. It is pre-coated by in-machine coating, and then calendered and curled after drying. The specific control process is shown in the examples:

[0033] Slurry ratio and control parameters are controlled according to Table 1.

[0034] Table 1 Slurry ratio and control process parameters

[0035] Slurry

[0036] The wet-end chemical process is controlled by the following parameters:

[0037] Filler: QCS setting value of 11%, cationic starch: 7kg / t pulp, PAM: white water concentration under the mesh set to 0.3%, bentonite: 2.3kg / t, silicone defoamer: 40ml / min, fixing agent: 0.6 kg / t, organic particles: 0.3kg / t.

[0038] The formula and process of pre-coatin...

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PUM

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Abstract

The invention relates to the technical field of papermaking, and in particular relates to a method for manufacturing three-proofing thermo-sensitive precoating base paper. A method for manufacturing thermo-sensitive industrial precoating base paper comprises the following steps: making paper; directly carrying out back gluing and front on-machine coating and precoating for 6-9g / m<2> through drying; and calendaring and curling to form the three-proofing thermo-sensitive precoating base paper, of which the front surface can be directly coated with a thermo-sensitive finishing-coat and a top coat after drying. Thermo-sensitive coating equipment does not need to be transformed; and the high-grade thermo-sensitive paper can be produced by existing equipment conditions.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a manufacturing method of three-proof thermal paper. Background technique [0002] After 2000, with the development of the economy and the improvement of people's living standards, the application field of thermal paper has been gradually developed, and then the production base of thermal paper has been continuously expanded at home and abroad. After entering 2013, the thermal paper competition has become fierce, and the profit of low-end thermal paper is getting lower and lower. Most manufacturers have transformed into high-grade thermal paper with higher profits, and high-end thermal paper is mainly based on three-proof thermal paper, which has high requirements on the coating machine and needs to be coated three times. The thermal coating machine has only two coating heads, and it needs to be re-coated once to obtain the three-proof thermal paper, so the waste is large, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/00D21H17/67D21H19/44D21H21/08D21H21/30D21F11/00
Inventor 喻建军王正红
Owner HUNAN HENGHAN HIGH TECH CO LTD
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