Dyeing method high in dye utilization rate

Abstract

The invention discloses a dyeing method high in dye utilization rate. The dyeing method comprises the following steps that 1, a quantitative dye supply mechanism is arranged at the top of a dying vatand uniformly puts powdery dye into a dye liquor in the dyeing vat; 2, multiple layers of conveying rollers are arranged in the dyeing vat, so that a fabric to be dyed sequentially bypasses the conveying rollers, and multi-layer dyeing is performed with the dyeing liquor in the dyeing vat from a surface layer and a bottom layer; 3, an inverted cone shaped dye collecting tank is arranged at the bottom of the dyeing vat and can collect the dye precipitating in the dyeing process; 4, a dye extracting mechanism is arranged at the lower portion of the dye collecting tank and is communicated with the dye collecting tank, ad the dye at the bottommost portion of the dye collecting tank is extracted out; 5, after the dye extracted from a first dye outlet and a second dye outlet is dried and groundinto powder, the dye is lifted to the quantitative dye supply mechanism through a lifting mechanism. By adopting the dyeing method, dye recovery can be achieved, and the sewage treatment difficulty isreduced.

Description

technical field [0001] The invention relates to the field of textile processing, in particular to a dyeing method with high dye utilization rate. Background technique [0002] At present, the textile industry is facing more and more fierce competition because it is a typical traditional industry. Dyeing is an indispensable step in the textile industry, and the cost control of the dyeing process has become the focus of attention. [0003] The cost in the dyeing process mainly refers to the cost of dyestuffs, water, electricity, and waste water recycling. The cost of water can generally be reduced by recycling waste water, and the cost of electricity Generally, the loss of heat can be reduced as far as possible by means of heat preservation measures, etc., and there is generally no better way to reduce the cost of dyestuffs in the market. Contents of the invention [0004] The main purpose of the present invention is to provide a dyeing method with high utilization rate of ...

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Problems solved by technology

[0003] The cost in the dyeing process mainly refers to the cost of dyestuffs, water, electricity, and waste water recycling. The cost of water can generally be reduced by recycling waste water, and the cost of electricity Generally, the loss of heat can be reduced as far as possible by means of heat preservation measures, etc., and there is generally no better way to reduce the cost of dyestuffs in the market.

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