Dyeing process capable of forming PTT/PET composite fiber fabric with crepe feeling

Abstract

The invention discloses a dyeing process capable of forming a PTT/PET composite fiber fabric with a crepe feeling. According to the dyeing process, an adopted dyeing agent consists of a dyeing assistant and a dye, and the dye is a disperse dye. In the dyeing process, a high-temperature and high-pressure airflow overflow dual-purpose dyeing machine is adopted for dyeing, and when the temperature ofa dyeing cylinder of the dyeing machine reaches 45 DEG C, the dyeing assistant and the disperse dye are separately injected; the dyeing process includes a dyeing stage and a water washing stage; in the dyeing stage, the dyeing machine stays in an airflow mode, and in the water washing stage, the dyeing machine stays in a gas-liquid mode. During dyeing, the temperature of the dyeing cylinder is increased to 85 DEG C at the temperature increase rate of 0.7 DEG C/min, and the temperature is set as the initial dyeing temperature. On the premise of ensuring the dyeing quality, not only can the dyed fabric have no flaws and defects, but also the fabric can be endowed with a zigzag crepe feeling, so that the fabric has an obvious airflow style, good color reproducibility and a soft hand feeling;moreover, the fabric has a shape memory function in the weft direction, the elastic effect is obvious, and the requirements for clothing are met.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, in particular to a dyeing process capable of forming crepe-like PTT / PET composite fiber fabrics. Background technique [0002] Although the airflow dyeing machine was developed and promoted by Germany in 1979, it started and developed relatively late in my country. Domestic traditional dyeing machines generally adopt the principle of circular dyeing vats, which have a relatively high market share due to their advantages of low cost, simple operation, and cheap maintenance. In recent years, with the tightening of environmental protection policies, the use of new equipment, new technologies and new processes to upgrade the printing and dyeing industry has broad market development prospects and inevitability. [0003] Airflow dyeing mainly adopts the principle of aerodynamics. The high-speed airflow generated by the high-pressure fan is injected into the nozzle from the air inle...

AI Technical Summary

Problems solved by technology

However, in the process of dyeing, due to improper use of process or parameters, the fabric is prone to color difference, uneven dyeing, scratches and polishing, and hard hand feeling. Therefore, choosing the appropriate dyeing process determines the dyeing quality and other properties of the fabric.

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