Low temperature dyeing process of environmentally friendly recycled polyester yarn

Abstract

The invention provides a low-temperature dyeing process of environmentally friendly regenerated polyester yarn, comprising the following steps: putting the regenerated polyester yarn into an energy-saving yarn dyeing device, adding dye guide agent, glacial acetic acid and dyes and running for 5-15 minutes , heat up to 90°C at a rate of 1°C / min and hold for 10 minutes, then raise the temperature to 100°C at a rate of 1°C / min and hold for 30 minutes, cool down to 50-60°C, and drain.

Description

technical field [0001] The invention belongs to the technical field of yarns, and relates to a low-temperature dyeing process, in particular to a low-temperature dyeing process of environmentally friendly regenerated polyester yarn. Background technique [0002] With the rapid increase of polyester production and sales, more and more waste polyester is produced, and the difficulty and cost of its disposal have become a major problem. The successful development of recycled polyester has provided a practical path for the sustainable development of polyester, and the recycling of resources has greatly reduced the pollution caused by polyester to soil, groundwater and the atmosphere. [0003] Recycled polyester is a fiber prepared from waste bottles, plastics, and clothing through chemical and physical means combined with spinning methods. It subverts the traditional sources of fiber raw materials, arranges and utilizes waste resources, and produces new fibers that are almost t...

AI Technical Summary

Problems solved by technology

There is no low-temperature dyeing process in the prior art, so it is necessary to design a low-temperature dyeing process for environmentally friendly recycled polyester yarn

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