Modified polyester/cotton blended fabric and dyeing method thereof

Abstract

The invention provides a modified polyester / cotton blended fabric and a dyeing method thereof. The fabric is blended by modified polyester and cotton, wherein the modified polyester is copolymerized by polyester and nylon 6, and has the structural unit as the specification, wherein m1 is more than 1 and less than 160, m2 is more than 1 and less than 70, m3 is more than or equal to 0 and less than 20, and m4 is more than or equal to 0 and less than 20; the blended fabric has the performance of normal-temperature normal-pressure dyeing, and soft handfeel and good antipilling performance with the antipilling grade over 3 grades. The invention also relates to a method for dyeing the blended fabric. An acid dye or an acid dye and a disperse dye are used for one-bath dyeing so as to simplify the dyeing process and contribute to energy conservation and emission reduction; and the dyeing temperature is below 100 DEG C to remarkably reduce energy consumption.

Description

technical field The invention relates to a blended fabric and a dyeing method thereof, in particular to a modified polyester and cotton blended fabric and a dyeing method thereof. The modified polyester and cotton blended fabric is dyed at normal temperature with reactive dyes and disperse dyes. Background technique The dyeing properties of ordinary polyester fibers and cotton are very different: polyester fibers are generally dyed with disperse dyes at high temperature and high pressure, and the dyeing temperature is above 120°C, and high temperature and high pressure dyeing machines must be used; cotton is generally dyed with reactive dyes, direct dyes, and vat dyes etc. for dyeing, the dyeing temperature is below 100°C, and a normal temperature and pressure dyeing machine is used. The difference in dyeing properties has brought great trouble to the dyeing of polyester and cotton blended fabrics. Cotton is prone to dye hydrolysis when dyed under high temperature conditions...

AI Technical Summary

Problems solved by technology

Although polyester and cotton blended fabrics are very mature products with a huge variety and output, due to the high modulus and high strength of polyester fibers, such fabrics generally have the disadvantage of easy pilling, and the polyester content is slightly The chemical fiber feeling of high-grade fabrics is relatively strong, which obviously reduces the product grade

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