Dyeing technique of coloring wood-pulp paper used for non-woven material

A non-woven material, wood pulp paper technology, applied in the dyeing technology field of dyed wood pulp paper, can solve the problems of color spots on the surface, unsatisfactory, complicated process, etc., and achieves high color fastness, low cost, and uniform coloring. Effect

Inactive Publication Date: 2008-03-26
XINLONG HLDG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the color fastness of domestically produced dyed wood pulp paper is low, the surface is often accompanied by stains, and the phenomenon of color difference is serious, which cannot meet the requirements of product quality
The dyed wood pulp composite non-woven materials produced in my country all use imported dyed wood pulp paper, but relying on imported dyed wood pulp paper for non-woven materials, the process is complicated and the cost is too high, which cannot meet the needs of the domestic market.

Method used

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  • Dyeing technique of coloring wood-pulp paper used for non-woven material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] a. Select wood pulp cardboard containing more than 60% redwood;

[0025] b. Put the wood pulp cardboard into the mixing tank to fully break up, so that the wood pulp fibers are evenly dispersed:

[0026] c. Slowly add the dyeing material whose index number is GDFN blue, the weight percentage is 0.6% to 1%, dyeing for 10 minutes; then add the uniformly mixed color fixing agent index number TF232, the weight percentage is 0.8% to 2%, fix the color 10 minutes;

[0027] d. Enter the wire section, press section and drying section, and finally process it into blue wood pulp paper.

Embodiment 2

[0029] a. Select wood pulp cardboard containing more than 60% redwood;

[0030] b. Put the wood pulp cardboard into the mixing tank to fully break up, so that the wood pulp fibers are evenly dispersed:

[0031] c. Slowly add the mixed dyeing matter whose index number is GDFN blue and 3GSFN yellow, the weight percentage is respectively 0.8% to 1.2% and 0.08% to 0.14%, dyeing for 10 minutes; then add the uniformly mixed color fixing agent index number TF232, The weight percentage is 0.8% to 2%, and the color is fixed for 10 minutes;

[0032] d. Enter the wire section, press section and drying section, and finally process it into blue-green wood pulp paper.

Embodiment 3

[0034] a. Select wood pulp cardboard containing more than 60% redwood;

[0035] b. Put the wood pulp cardboard into the mixing tank to fully break up, so that the wood pulp fibers are evenly dispersed:

[0036] c. Slowly add the dyeing material whose index number is DF Cuilan, the weight percentage is 0.2% to 0.4%, and dye for 10 minutes; color for 10 minutes;

[0037] d. Enter the wire section, press section and drying section, and finally process it into light blue wood pulp paper.

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Abstract

The present invention belongs to the field of paper making technology, and is especially technological process of dyeing wood pulp paper for making non-woven material. The technological process includes the steps of pulping, dyeing, fixing color, feeding, squeezing, stoving, etc. The dyeing step adopts the dye of DF turquoise blue, GDFN blue, RF bright blue, 3GSFN yellow or their mixture; and the color fixing agent is TF232 color fixing agent. The dyed product has homogeneous color, high color fastness, stable quality, low cost and other advantages.

Description

technical field [0001] The invention relates to the field of papermaking in the light chemical industry, in particular to the dyeing technology of dyed wood pulp paper. Background technique [0002] openly known. Wood pulp composite non-woven material is a new non-woven material composed of wood pulp paper made of special natural wood pulp fiber and textile carding fiber web (viscose, polyester, etc.) through spunlace non-woven technology. Used as disposable medical products such as surgical gowns, surgical sheets, protective clothing, etc. At present, the color fastness of domestically produced dyed wood pulp paper is low, the surface is often accompanied by stains, and the phenomenon of color difference is serious, which cannot meet the requirements of product quality. The dyed wood pulp composite non-woven materials produced in my country all use imported dyed wood pulp paper, but relying on imported dyed wood pulp paper for non-woven materials, the process is complicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H21/28
Inventor 陈喆赵祥杨晓伟陈龙敏张志娟
Owner XINLONG HLDG GROUP
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