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Method for producing environment-friendly electrostatic copying paper

A technology of electrostatic copying and production methods, applied in the field of papermaking, can solve problems such as strong dependence on forest resources, large consumption of fiber raw materials, large amounts of waste water, waste gas, etc., and achieve the effects of reducing production costs, reducing pollution emissions, and saving costs

Inactive Publication Date: 2010-04-07
福建省晋江优兰发纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The currently used electrostatic copy paper usually uses bleached chemical softwood pulp and bleached chemical hardwood pulp as the main raw material, or adds 5 to 15% bleached straw pulp (or other non-wood fiber) or chemical thermomechanical pulp, using carbonic acid Calcium or talcum powder is used as a filler, AKD, ASA or rosin is used for sizing, brighteners, dyes, starch, retention aids and other auxiliary materials are used in the pulp, surface sizing starch and sizing agents are used on the paper surface surface treatment, higher cost
[0003] In addition, the consumption of fiber raw materials is large or all fiber raw pulp is used, which is highly dependent on forest resources. A large amount of waste water and waste gas are generated in the process of pulping and bleaching, which is not conducive to environmental protection and energy saving.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The proportion of fiber pulp is 10% of bleached chemical softwood pulp, 30% of bleached chemical broadleaf pulp, 10% of BCTMP pulp and 50% of waste paper deinking pulp, and the fourdrinier paper machine with sizing machine is used for papermaking production , Add auxiliary materials and dyes in the pulp mixing tank, including calcium carbonate 180kg / ton paper, cationic starch 10kg / ton paper, whitening agent 5kg / ton paper, AKD 10kg / ton paper, retention aid PAM 0.05kg / ton paper, super Granular retention aid 0.2kg / ton of paper, degasser 0.1kg / ton of paper, fungicide 0.3kg / ton of paper and dye 0.4kg / ton of paper; the added surface treatment agent includes corn starch 45kg / ton of paper and starch modified Active agent 0.2kg / ton of paper. This embodiment is a preferred implementation.

Embodiment 2

[0037] The proportion of fiber pulp is 20% of bleached chemical softwood pulp, 20% of bleached chemical broadleaf pulp, 20% of BCTMP pulp and 40% of waste paper deinking pulp, and the fourdrinier paper machine with sizing machine is used for papermaking production , Add auxiliary materials and dyes in the pulp mixing tank, including calcium carbonate 200kg / ton paper, cationic starch 10kg / ton paper, whitening agent 5kg / ton paper, AKD 10kg / ton paper, retention aid PAM 0.03kg / ton paper, super Granular retention aid 0.3kg / ton of paper, degasser 0.1kg / ton of paper, fungicide 0.3kg / ton of paper and dye 0.5kg / ton of paper; the added surface treatment agent includes corn starch 60kg / ton of paper and starch modified Active agent 0.3kg / ton of paper.

[0038] By adopting the production method of electrostatic copy paper provided by the invention, the use of fiber virgin pulp is saved, and the self-made modified starch is used at the same time, which can reduce the cost by 300-400 yuan / to...

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Abstract

The invention relates to the technical field of paper making, and provides a method for producing environment-friendly electrostatic copying paper. The method comprises the following steps: using 10 to 20 percent of bleached chemical softwood pulp, 20 to 40 percent of bleached chemical hardwood pulp, 10 to 20 percent of BCTMP pulp and 30 to 50 percent of waste paper deinking pulp as paper pulp raw materials; adding chemical accessories and dyes into a pulp compounding pool; using corn starch and a starch modifier as surface treatment agents; making the compounded pulp into paper through a fourdrinier with a glue blender; and then further processing through finishing equipment to obtain the paper. Due to the adoption of the high-ash high-whiteness waste paper deinking pulp, the method for producing the environment-friendly electrostatic copying paper can effectively reduce the consumption of raw wood pulp and chemical raw materials, and is favorable for reducing the energy consumption, lightening the environmental pollution and saving the cost.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a production method of environment-friendly electrostatic copy paper. Background technique [0002] The currently used electrostatic copy paper usually uses bleached chemical softwood pulp and bleached chemical hardwood pulp as the main raw material, or adds 5 to 15% bleached straw pulp (or other non-wood fiber) or chemical thermomechanical pulp, using carbonic acid Calcium or talcum powder is used as a filler, AKD, ASA or rosin is used for sizing, brighteners, dyes, starch, retention aids and other auxiliary materials are used in the pulp, surface sizing starch and sizing agents are used on the paper surface Surface treatment is expensive. [0003] In addition, the consumption of fiber raw materials is large or all fiber raw pulp is used, which is highly dependent on forest resources. A large amount of waste water and waste gas are generated in the process of pulping and bl...

Claims

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Application Information

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IPC IPC(8): D21F11/02D21H11/02D21H11/14D21C5/02D21H17/67D21H17/29D21H21/10D21H21/16D21H21/14D21H21/36D21F9/02
CPCY02W30/64
Inventor 甘木林
Owner 福建省晋江优兰发纸业有限公司
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