Continuous hot melting dyeing technology for polyester fiber fabric

Abstract

The invention aims at providing a continuous hot melting dyeing technology for a polyester fiber fabric. The traditional pad dyeing technology of carrying out rolling, drying and baking in sequence on the polyester fiber fabric is changed into the technology of carrying out steaming, rolling, drying and baking in sequence. Before padding, a polyester fiber is steamed through negative pressure saturation steam so that the expansion degree of the polyester fiber can be improved, the dyeing speed, the dye utilization ratio and the level dyeing degree of dyes can be improved, and the effects of shaping the polyester fiber and improving the quality of the fiber can be achieved. In the padding process, the dyeing speed and the dyeing uptake of disperse dyes are further improved by utilizing the function of a dyeing assistant, and the liquid rate and the level dyeing effect of two-immersing and two-rolling technology can be achieved by adopting the one-immersing and one-rolling technology. After pre-drying is carried out through high-frequency infrared rays, the temperature of the baking and drying is reduced to 180 DEG C to 190 DEG C from 210 DEG C to 220 DEG C by adopting the low-temperature dyeing technology. By means of the technology, dyeing and printing enterprises can greatly reduce energy consumption, and meanwhile, high quality dyed fabrics with the superior performance can be obtained.

Description

technical field [0001] The invention relates to the formulation of a continuous hot-melt dyeing process for polyester fiber fabrics, and belongs to the technical field of textile dyeing. Background technique [0002] Polyester fiber has a series of excellent physical, chemical and mechanical properties, and the finished products are famous for their crispness and good wearing properties. Therefore, polyester fiber fabrics are favored by consumers. However, polyester fiber dyeing is a high-energy-consuming and high-emission process regardless of the high-temperature and high-pressure dyeing process or the hot-melt dyeing process. With the continuous development of science and technology, due to the excessive development and utilization of energy, the price of energy supply is getting higher and higher, and the pressure of printing and dyeing wastewater treatment is increasing, the traditional polyester fiber fabric dyeing process is greatly challenged. In order to reduce con...

AI Technical Summary

Problems solved by technology

However, polyester fiber dyeing is a high-energy-consuming and high-emission process regardless of the high-temperature and high-pressure dyeing process or the hot-melt dyeing process.

With the continuous development of science and technology, due to the excessive development and utilization of energy, the price of energy supply is getting higher and higher, and the pressure of printing and dyeing wastewater treatment is increasing, the traditional polyester fiber fabric dyeing process is greatly challenged