Dyeing and coating integrated printing process for polyester sanded fabric

Abstract

The invention discloses a dyeing and coating integrated printing process for polyester sanded fabric. The process comprises steps as follows: a, polyester sanded grey fabric is spread and preset at the speed of 90-110 m / min and at the temperature of 210-215 DEG C for 10-15 s, and a product A is obtained; b, the product A is loosened in a cylinder and subjected to moisture absorption, sweat releasing and one-bath finishing; the product A is operated for 15-20 min, a pretreatment solution is added, and the temperature is increased to 100-130 DEG C and then reduced to 70-90 DEG C, a moisture absorption and sweat releasing finishing agent is added, the mixture is run for 5-10 min, and a product B is obtained after drainage; c, the product B is dewatered, scutched and scoured, and a product C is obtained; d, the product C is subjected to integrated loosening, low-temperature drying and wool suction, and a product D is obtained; e, the product D is subjected to coating and disperse dye mixedprinting, and a product E is obtained; f, the product E is rapidly aged, and a finished product is obtained. The process has the characteristics that the overall production efficiency is improved, energy conservation and emission reduction are remarkable, the fabric touches soft, the color fastness is good, the safety is higher and the product quality is higher.

Description

technical field [0001] The invention relates to a printing process, in particular to an integrated dyeing and coating printing process for polyester brushed cloth. Background technique [0002] Pigment printing is widely used in the dyeing and finishing of traditional polyester brushed fabrics due to the characteristics of short process, low pollution, and low processing unit price. Wipe-pre-setting-absorbing wool-pigment printing-drying and setting-finished product rolling-out of the warehouse, the processing process is simple, there is no steaming, washing and other processes. Among them, in the pretreatment, the temperature is raised to 130°C at 0.5-1°C, the temperature is kept at 20-30min, and the temperature is lowered to 80°C at 1-2°C to drain water. ~90m / min, the pre-setting time is long, the overall production efficiency is low, and the energy consumption is high; in addition, there are still some defects: 1. Because the pigment is bonded to the cloth through an adh...

AI Technical Summary

Problems solved by technology

[0002] Pigment printing is widely used in the dyeing and finishing of traditional polyester brushed fabrics due to the characteristics of short process, low pollution, and low processing unit price. Wipe—pre-setting—absorbing wool—pigment printing—drying and setting—finished product rolling—out of the warehouse, the processing process is simple, without steaming, washing, etc.

Among them, in the pretreatment, the temperature is raised to 130°C at 0.5-1°C, the temperature is kept at 20-30min, and the temperature is lowered to 80°C at 1-2°C to drain water. ~90m / min, the pre-setting time is long, the overall production efficiency is low, and the energy consumption is high; in addition, there are still some defects: 1. Because the pigment is bonded to the cloth through an adhesive, and the subsequent process There is no washing, so the printed cloth generally feels hard; 2. Because the processing unit price of polyester printing is low, the color fastness and safety performance are closely related to the adhesive used, and the adhesive with high fastness and environmental protection is more expensive. High, inconsistent with the original intention of low cost, so the wet color fastness of products in actual production is generally not high, especially the wet rubbing fastness of black and red is poor, it is difficult to reach more than 2~3 grades, and the product safety performance especially Formaldehyde content is difficult to meet the requirements of GB18401 Class B products

Due to the above-mentioned defects such as hand feel, color fastness and safety performance, the product grade of polyester brushed cloth pigment printing is always at a low level, and it is difficult to use it in high-grade, high-weight and high-value-added orders, and the product quality is low.

[0003] Therefore, pigment printing on polyester brushed fabric has the problems of low overall production efficiency, high energy consumption, hard hand feeling, poor color fastness, low safety performance, and low product quality.

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