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Dyeing process of olive-green insulating paperboard

An insulating cardboard and process technology, applied in the field of dyeing technology, can solve the problems of poor color uniformity of cardboard, poor surface oxidation resistance, easy fading over time, etc., and achieve the effects of less dye consumption, high retention rate and clear wastewater

Inactive Publication Date: 2010-05-26
XINSHAO GUANGXIN ELECTRICAL INSULATING MATERIALS
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AI Technical Summary

Problems solved by technology

[0002] The existing dyeing industrial insulation cardboard production process is mostly adding dyes after pulping, and the dye formula contains alkaline bright yellow that is easily oxidized, so the color uniformity of the cardboard produced in this way is poor, the surface oxidation resistance is poor, and it is easy to fade over time

Method used

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  • Dyeing process of olive-green insulating paperboard
  • Dyeing process of olive-green insulating 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 wood pulp board until it is crushed by the hydraulic pulper, then dehydrate it to the raw pulp tank through the rotary screen thickener, add the adjusted dye to the raw pulp tank, stir with the pulp for a period of time, and mix uniform, and then sent to three tandem double-disk refiners for refining with a slurry pump, the ground slurry enters the slurry tank, and then the color-fixing agent aluminum sulfate is properly dissolved to achieve the color-fixing effect, which is used for the next process Paper machine used.

[0014] The raw material formula of this process is (according to 1000kg absolute dry pulp):

[0015] a. Raw material: 100% coniferous wood pulp board 1000kg (dry pulp)

[0016] b. Dye dosage: 5.0±0.1‰

[0017] Direct emerald blue 1.2kg / 1000kg pulp ±0.025‰

[0018] Basic bright yellow 3.8kg / 1000kg pulp ±0.075‰

[0019] C. Dosage of color fixing agent: alumi...

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Abstract

The invention relates to a dyeing process of an olive-green insulating paperboard. The dyeing process adopts the following raw material prescriptions: (a) raw material: 1,000kg of 100 percent softwood pulp board accounted by dry pulp; (b) dye: 0.50+ / -0.01 percent: 1.2kg / 1,000kg pulp+ / -0.0025 percent of direct turquoise blue and 3.8kg / 1,000kg pulp+ / -0.0075 percent of alkaline bright yellow; and (c) a fixing agent: 20kg / 1,000kg pulp of aluminum sulfate.

Description

technical field [0001] The invention relates to a dyeing process in the production process of insulating industrial cardboard, belonging to the technical field of dyeing process. Background technique [0002] The existing dyeing industrial insulation cardboard production process is mostly to add dyes after pulping, and the dye formula contains alkaline bright yellow which is easy to oxidize, so the color uniformity of the cardboard produced in this way is poor, the surface oxidation resistance is poor, and it is easy to fade over time. However, the customer has strict requirements on the color of the cardboard. In order to ensure the color stability of the product without fading or discoloration, it is necessary to select a dyeing agent, formulate a formula, 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, add al...

Claims

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Application Information

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IPC IPC(8): D21H27/12D21H21/28D21H21/14D21H17/66
Inventor 郑小玲刘德云杨水英
Owner XINSHAO GUANGXIN ELECTRICAL INSULATING MATERIALS
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