Process for dyeing dark green industrial paperboard

A dark green, industrial technology, applied in papermaking, organic dyes, textiles and papermaking, etc., can solve the problems of poor color uniformity of cardboard, easy fading over time, poor surface oxidation resistance, etc., to achieve high retention rate, clear wastewater, Penetrating effect

Inactive Publication Date: 2010-07-21
XINSHAO GUANGXIN ELECTRICAL INSULATING MATERIALS
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Problems solved by technology

[0002] The production process of the existing dark green industrial insulating paperboard is mostly to add dyes afte

Method used

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  • Process for dyeing dark green industrial paperboard
  • Process for dyeing dark green industrial paperboard

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Embodiment Construction

[0013] Its product realization process is as follows: figure 1 As shown, first add water to the raw material pulp until it is crushed by a hydropulper, then dehydrate it to the raw pulp tank through a rotary screen thickener, add the adjusted dye to the raw pulp tank, stir with the pulp for a period of time, and mix evenly. Then use a pulp pump to send it to three tandem double-disk refiners for refining, and the ground pulp enters the pulp tank for use in the paper machine in the next process.

[0014] The raw material formula of this process is (total weight 1000kg):

[0015] a, raw material: get 730kg100% uncolored wood pulp cellulose.

[0016] b. Dye dosage: 7±0.32‰.

[0017] Wherein: direct emerald blue: embodiment 1 gets 60kg, and example 2 gets 66kg;

[0018] Basic bright yellow: get 6.8kg in embodiment 1, get 7.2kg in example 2;

[0019] c, color fixing agent: aluminum sulfate: embodiment 1, example 2 take the surplus of total amount 1000kg respectively.

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Abstract

The invention relates to a process for dyeing a dark green industrial paperboard, which comprises the following steps: firstly, adding water into a paper pulp raw material until the paper pulp raw material is disintegrated by a hydrabrusher; dehydrating the disintegrated paper pulp with a decker and conveying the product into a primary pulp pool for uniform stirring and mixing with a sizing agent; feeding the mixture into a pulping machine with a stock pump for pulping; and introducing the pulped mixture into a machine chest for the use of a paper machine in the next procedure. The formula of a dye in the process comprises that: a, the paper pulp raw material is wood fiber; b, the using amount of the dye is 0.007+/-0.00032 percent, wherein direct turquoise is 0.00630+/-0.00030 percent and auramine is 0.00070+/-0.00002 percent; and c, a fixing agent made from 0.2+/0.003 percent of aluminum sulphate. The product produced by the process is uniform in color and fadeless for long time.

Description

technical field [0001] The invention relates to a dyeing process in the production process of industrial cardboard, and belongs to the technical field of dyeing process in colored paper production. Background technique [0002] The production process of the existing dark green industrial insulating paperboard is mostly to add dyes after pulping, and the dye formula does not contain alkaline bright yellow and color-fixing agent aluminum sulfate. fade. However, customers have strict requirements on the color of cardboard. In order to ensure that the color of the product is stable and does not fade or change color, it is necessary to select dyes, formulate formulas, and formulate the best process. Contents of the invention [0003] The purpose of the present invention is to select chemical dyeing reagents for wood pulp plant cellulose, find out a reasonable formula process, especially the addition of dye basic bright yellow and color fixing agent aluminum sulfate, and add th...

Claims

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Application Information

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IPC IPC(8): D21H23/16C09B67/22
Inventor 郑小玲刘德云龚温胜华龚
Owner XINSHAO GUANGXIN ELECTRICAL INSULATING MATERIALS
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