Dark non-ironing washable pure cotton knitted fabric and preparation method and application thereof

Abstract

The invention provides a dark non-ironing washable pure cotton knitted fabric and a preparation method and application thereof. The preparation method includes the steps that yarn is subjected to greycloth knitting, scouring, enzyme washing, dyeing, liquid ammonia finishing and resin shaping in sequence to obtain the knitted fabric; during liquid ammonia finishing, a knitted fabric body obtainedafter dyeing, scutching and drying passes through a drying unit, a brushing unit, an ammonia leaching unit, a drying-cylinder ammonia removal unit and a steaming unit in sequence and then is cropped;during liquid ammonia finishing, according to a fabric passing path, the knitted fabric body passes through a fabric guide roller to enter the drying unit and then passes through an edge flattening roller and a fabric guide roller to enter a woolen blanket cylinder body of a drying cylinder of the drying unit; after getting out of the woolen blanket cylinder body, the knitted fabric body passes through a fabric guide roller to enter the brushing unit, passes through an edge flattening roller and a fabric guide roller to enter a liquid ammonia leaching tank of the ammonia leaching unit to passthrough a fabric guide roller and then passes through a first padder roller and a second padder roller; the knitted fabric body enters a plurality of drying cylinders continuously arranged inside thedrying-cylinder ammonia removal unit through the corresponding edge flattening rollers and fabric guide rollers, and then after the knitted fabric body enters a woolen blanket cylinder of a steaming box of the steaming unit through edge flattening rollers and fabric guide rollers, cropping is conducted.

Description

technical field [0001] The invention relates to a dark color non-ironing and washable pure cotton knitted fabric as well as a production method and application thereof, belonging to the technical field of knitting dyeing and finishing. Background technique [0002] For pure cotton fabrics, if you want to get a darker color, especially black and dark blue, it is generally obtained by increasing the amount of reactive dyes, but after the amount of dyes reaches a certain level, the density of reactive dyes on the surface of the fabric increases. It is prone to color fading and fading, which makes the dark cloth surface after wearing obviously different from the original dark cloth surface. In addition, due to the mechanical force during wearing and washing, the seams and prominent bones of pure cotton dark clothes are greatly increased, resulting in increased hairiness on the cloth surface and local whitening of the prominent bones, showing a more delicate appearance. Obvious ...

AI Technical Summary

Problems solved by technology

[0002] For pure cotton fabrics, if you want to get a darker color, especially black and dark blue, it is generally obtained by increasing the amount of reactive dyes, but after the amount of dyes reaches a certain level, the density of reactive dyes on the surface of the fabric increases. Easy to fade and fade, which makes the dark cloth after wearing obviously different from the original dark cloth

In addition, due to the mechanical force during wearing and washing, the seams and prominent bones of pure cotton dark clothes are greatly increased, resulting in increased hairiness on the cloth surface and local whitening of the prominent bones, showing a more delicate appearance. Obvious whitening damage, obvious washing old feeling, seriously affect the overall appearance of the clothes, and reduce the grade of black cotton fabrics

[0003] In view of the above problems, resin finishing methods are usually adopted in the industry, or resin finishing combined with enzyme washing or singeing; resin finishing can improve the color washability and wrinkle resistance of knitted fabrics by cross-linking with cell

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