CN115852572A - A kind of knitted fabric and its dyeing process - Google Patents

Abstract

The invention relates to the technical field of textiles, in particular to a knitted fabric and a dyeing process thereof. A kind of knitted fabric and its dyeing process, comprising the weaving of the first composite yarn and the second composite yarn, the first composite yarn includes spandex fiber and a plurality of modal fibers wrapped in the outer layer of spandex fiber, the second composite yarn includes polyester fiber and A plurality of cupro fibers wrapped in the outer layer of polyester fibers, the parts by weight of each raw material are: 5-10 parts of spandex fibers, 20-30 parts of modal fibers, 5-10 parts of polyester fibers, and 25-35 parts of cupro fibers. The knitted fabric of the present invention has a single-layer structure, which makes it relatively light and thin. The polyester fiber and spandex fiber are used as the core thread to make the fabric have excellent elasticity, and the cupro fiber and modal fiber are used as the outer covering thread to make the surface of the fabric soft and smooth. The color is bright, the hand feels soft, and the drape is good, so that the inside and outside of the fabric do not need to be laminated with other fabrics to improve skin-friendly comfort.

Description

A kind of knitted fabric and its dyeing process

technical field

The invention relates to the technical field of textiles, in particular to a knitted fabric and a dyeing process thereof.

Background technique

As one of the most widely used chemical fibers in modern times, polyester products are cheap, have excellent wrinkle resistance and shape retention, are durable, and have good resistance to various chemicals. At the same time, they are not afraid of mold and insects. And other advantages, deeply loved by consumers. However, polyester products on the market are either stiff like suits and jackets, or soft like cardigans and T-shirts. A single style is difficult to meet the needs of all levels of people;

Currently, fabrics with a skin-friendly and comfortable inner layer have no other solutions except through lamination and other post-processing technologies. However, the lamination cost is relatively high, and the hand feeling of the fabric after lamination is hard, so the original style cannot be maintained for a long time. Therefore, according to market demand, it is urgent to develop non-adhesive products to fill the gap in market share.

Contents of the invention

The purpose of the patent of this invention is to provide a knitted fabric and its dyeing process to solve the existing problem: the fabric with a skin-friendly and comfortable inner layer has no other solution except through lamination and other post-processing technologies. .

In order to achieve the above object, the present invention adopts the following technical solutions:

A knitted fabric, comprising a first composite yarn and a second composite yarn, the first composite yarn includes spandex fibers and a plurality of modal fibers wrapped in the outer layer of spandex fibers, and the second composite yarn includes polyester fibers and A plurality of cupro fibers wrapped in the outer layer of polyester fibers, the parts by weight of each raw material are: 5-10 parts of spandex fibers, 20-30 parts of modal fibers, 5-10 parts of polyester fibers, and 25-35 parts of cupro fibers.

Preferably, the spandex fiber has a fineness of 20-50 Denier, the polyester fiber has a fineness of 20-50 Denier, the modal fiber has a fineness of 40-60 tex, and the cupro fiber has a fineness of 30-55 tex.

A kind of dyeing process of knitted fabric is used for above-mentioned knitted fabric, and its steps are as follows:

The first step: pretreatment, cleaning the fabric;

The second step: dyeing treatment, the fabric after the first step is dyed by the jigger;

The third step: post-processing, dyeing and post-processing the S2 fabric.

Preferably, in the first step, the fabric is placed in the cleaning equipment, and water at 85-105°C is added and stirred for 5-10 minutes, and then refining agent, softener and defoamer are added in sequence, Then keep warm, stir and wash for 40±5 minutes.

Preferably, in the second step, the fabric that has passed the first step is placed in the jigger, and the fabric is infected once at a temperature of 80-100°C for 20-30 minutes, and the fabric is infected twice dyeing, the temperature is 120°C, and the soaking time is 10 minutes.

Preferably, leveling agent and anti-wrinkle agent are added in the first infection of the second step.

Preferably, in the third step, the fabric that has passed the second step is cleaned, and after cleaning, it is squeezed by a paddle car to make the fabric flat, and the fabric is cut according to the size requirement.

The present invention at least has the following beneficial effects:

The knitted fabric of the present invention has a single-layer structure, which makes it relatively light and thin. The polyester fiber and spandex fiber are used as the core thread to make the fabric have excellent elasticity, and the cupro fiber and modal fiber are used as the outer covering thread to make the surface of the fabric soft and smooth. The color is bright, the hand feels soft, and the drape is good, so that the inside and outside of the fabric do not need to be laminated with other fabrics to improve skin-friendly comfort. It can be used alone as a fabric or as an inner lamination of other fabrics.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. Ordinary technicians can also obtain other drawings based on these drawings on the premise of not paying creative work.

Fig. 1 is a kind of dyeing process flowchart of knitted fabric of the present invention;

Fig. 2 is a flow chart of pretreatment in the dyeing process of a kind of knitted fabric of the present invention;

Fig. 3 is a flow chart of dyeing treatment in the dyeing process of a kind of knitted fabric of the present invention;

Fig. 4 is a post-processing flow chart in the dyeing process of a knitted fabric according to the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Example 1:

A knitted fabric, comprising a first composite yarn and a second composite yarn, the first composite yarn includes spandex fiber and a plurality of modal fibers wrapped in the outer layer of the spandex fiber, the second composite yarn includes polyester fiber and a plurality of modal fibers wrapped in the polyester fiber A plurality of copper ammonia fibers in the outer layer, the parts by weight of each raw material are: 5-10 parts of spandex fiber, 20-30 parts of modal fiber, 5-10 parts of polyester fiber, 25-35 parts of cupro fiber; specifically, spandex fiber The fineness of the fiber is 20-50Denier, the fineness of the polyester fiber is 20-50Denier, the fineness of the modal fiber is 40-60tex, and the fineness of the cupro fiber is 30-55tex.

The knitted fabric of the present invention has a single-layer structure, which makes it relatively light and thin. The polyester fiber and spandex fiber are used as the core thread to make the fabric have excellent elasticity, and the cupro fiber and modal fiber are used as the outer covering thread to make the surface of the fabric soft and smooth. The color is bright, the hand feels soft, and the drape is good, so that the inside and outside of the fabric do not need to be laminated with other fabrics to improve skin-friendly comfort. It can be used alone as a fabric or as an inner lamination of other fabrics.

Example 2:

With reference to Fig. 1-Fig. 4, on the basis of above-mentioned embodiment 1, disclose its dyeing process:

The first step: pretreatment, cleaning the fabric; among them, in the first step, the fabric is placed in the cleaning equipment, and water at 85-105°C is added, and stirred to soften the fabric for subsequent cleaning, stirring time Continue for 5-10 minutes, then add refining agent, softener and defoamer in sequence, and then keep warm, stir and wash for 40±5 minutes. Among them, the amount of refining agent added is 2g/L, and the amount of softener added is 0.8-1.5g /L, the amount of defoamer added is 1-2.5g/L.

The second step: dyeing treatment, dyeing the fabric that has passed the first step through the jigger; wherein, in the second step, the fabric that has passed the first step is placed in the jigger, and the fabric is once infected, and the temperature The temperature is 80-100°C, the duration is 20-30 minutes, and the fabric is secondly infected, the temperature is 120°C, and the soaking time is 10 minutes; further, add level dyeing to the first infection in the second step agent and anti-wrinkle agent, wherein, the addition amount of leveling agent is 1-1.5g/L, and the addition amount of anti-wrinkle agent is 1.5-2.5g/L.

The third step: post-processing, dyeing and post-processing the fabrics that have passed the second step; wherein, in the third step, the fabrics that have passed the second step are cleaned, and after cleaning, they are squeezed by a rolling machine to make the fabrics flat, and according to The fabric is cut according to the size requirement, wherein the rolling speed is 37-49m/min, preferably 42m/min.

The invention discloses a process of pretreatment, dyeing treatment and posttreatment of knitted fabrics. By adopting constant temperature pretreatment, dyeing treatment and posttreatment process, adding refining agent, softener and defoaming agent in the pretreatment process, the Adding leveling agent and anti-wrinkle agent in the dyeing process can reduce the processing time, improve the efficiency, and at the same time increase the softness of the fabric, so that the fabric has excellent elasticity.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description are only the principles of the present invention. Variations and improvements, which fall within the scope of the claimed invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A knitted fabric, characterized in that, comprises the first composite yarn and the second composite yarn to be woven, the first composite yarn comprises spandex fiber and a plurality of modal fibers wrapped in the spandex fiber outer layer, the second The composite yarn includes polyester fiber and multiple copper ammonia fibers wrapped in the outer layer of polyester fiber. The parts by weight of each raw material are: 5-10 parts of spandex fiber, 20-30 parts of modal fiber, 5-10 parts of polyester fiber, cupro ammonia Fiber 25-35 parts. 2. A kind of knitted fabric according to claim 1, characterized in that, the spandex fiber fineness is 20-50 Denier, the polyester fiber fineness is 20-50 Denier, and the modal fiber fineness is 40-50 Denier. 60tex, the cupro fiber fineness is 30-55tex. 3. A dyeing process for knitted fabrics, for the knitted fabrics described in any one of claims 1-2, characterized in that the steps are as follows: S1: pretreatment, cleaning the fabric; S2: dyeing process, dyeing the fabric through S1 by dyeing machine; S3: post-treatment, dyeing post-treatment to the fabric through S2. 4. The dyeing process of a knitted fabric according to claim 3, characterized in that, in S1, the fabric is placed in a cleaning device, and water at 85-105° C. is added and stirred, and the stirring time lasts 5- After 10 minutes, add refining agent, softener and defoamer in turn, and keep warm and stir for 40±5 minutes. 5. The dyeing process of a knitted fabric according to claim 3, characterized in that, in S2, the fabric passed through S1 is placed in a jigger, and the fabric is once dyed at a temperature of 80-100°C. The duration is 20-30 minutes, and the fabric is subjected to secondary infection, the temperature is 120°C, and the soaking time is 10 minutes. 6. The dyeing process of a kind of knitted fabric according to claim 5, characterized in that, in the first infection of S2, a leveling agent and an anti-wrinkle agent are added. 7. The dyeing process of a kind of knitted fabric according to claim 3, characterized in that, in S3, the fabric passed through S2 is cleaned, and after cleaning, the fabric is squeezed by a rolling machine to make the fabric smooth, and the fabric is adjusted according to the size requirements. to crop.

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