Wet-end solid-liquid mixing-dye addition device and process method

Abstract

The invention discloses a wet-end solid-liquid mixing-dye addition device which comprises a solid-dye crushing screening unit and a hot-water tank. The hot-water tank is sequentially connected with a control valve, a water purifier and a flowmeter to be commonly connected to an entry end of an agitation dissolving unit with the solid-dye crushing screening unit, an exit end of the agitation dissolving unit is sequentially connected with a first filter system, a hybrid solenoid valve, a mixing pulp pump, a second filter system, a slush pump and a paper machine, the hybrid solenoid valve is the three-in-one solenoid valve, and other two entries of the hybrid solenoid valve are connected with a liquid fuel tank and a clear-water tank. The invention further discloses a wet-end solid-liquid mixing-dye addition process which includes crushing and sieving, dissolving, pre-dyeing, mixing and coloring; by the arrangement, the effect that the solid powder dye and liquid dye are combined and good in use is realized, cost can be reduced, and color change can be reacted and adjusted rapidly.

Description

technical field [0001] The invention relates to the technical field of papermaking dyeing, and more specifically relates to a wet-end solid-liquid mixing dyeing adding device and a process method. Background technique [0002] With the rapid development of the packaging industry, containerboard is one of the main raw materials for paper packaging, and its market demand is increasing. Containerboard often needs to be dyed during processing. The traditional containerboard dyeing method is mainly through solid powder. The dyestuffs are dyed intermittently in the slurry tank, but this kind of solid powder dyeing has problems such as complicated operation process, difficult hue control, and slow color adjustment speed. Liquid dyestuffs can conveniently realize continuous and stable addition of dyestuffs in the slurry, which just overcomes the problems. It solves the problems of long adding time and slow hue adjustment speed of the traditional slurry tank type, but the cost of exi...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the packaging industry, containerboard is one of the main raw materials for paper packaging, and its market demand is increasing. Containerboard often needs to be dyed during processing. The traditional containerboard dyeing method is mainly through solid powder. The dyestuffs are dyed intermittently in the stock tank, but this kind of solid powder dyeing has problems such as complicated operation process, difficult hue control, and slow color adjustment speed. Liquid dyes can conveniently realize the continuous and stable addition of dyes in the stock, which just overcomes the problems. It solves the problems of long adding time and slow hue adjustment speed of the traditional pulp tank type, but the cost of existing liquid dyes is high, and the dyeing usage is large, which is not conducive to the competitiveness of the company's products and the sustainable development of economic benefits

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