A knitted fabric with moisture absorption and heat generation function and its processing technology

Abstract

The invention discloses knitted fabric with a moisture absorbing and heating function. The knitted fabric is made of materials including, by weight, 80-90% of cotton fibers and 10-20% of modified acrylic fibers, wherein the sectional diameter of each cotton fiber ranges from 11.5 micrometers to 13.5 micrometers with the length ranging from 25mm to 35mm, and the sectional diameter of each modified acrylic fiber ranges from 5.5 micrometers to 8.5 micrometers with the length of the fiber ranging from 35mm to 45mm. The invention further discloses a processing technology of the knitted fabric with the moisture absorbing and heating function. The processing technology includes processes of feeding gray fabric into a dye vat, performing pretreatment, dyeing, shaping and packing finished products. The defect that the modified acrylic fibers of the knitted fabric are less prone to coloring is overcome; after being added with the modified acrylic fibers high in moisture absorption, the knitted fabric has better moisture absorbing and heating function as compared to ordinary knitted fabric, and quantity of heat generated from moisture absorption is approximately three times that of wool; therefore, the knitted fabric has the advantages of deodorization, balancing PH (power of hydrogen), sweat absorption, freeness of static electricity, flame retardance and the like.

Description

technical field

[0001] The invention belongs to the field of knitted fabrics, and in particular relates to a knitted fabric with the function of absorbing moisture and heating and a processing technology thereof. Background technique

[0002] The basic principle of moisture absorption and heat generation of knitted fabrics is to improve the hygroscopicity of fibers so as to convert dynamic water vapor into static liquid water and kinetic energy into heat energy. Therefore, the better the water absorption of raw materials, the better the heat generation performance. At present, wool and viscose have better water absorption compared with commonly used fibers. For hygroscopic and heating products on the market, raw materials with better hygroscopicity such as wool and viscose are mostly used to make fabrics with heating function. Wool fiber fabrics are easy to burn. The ball has high maintenance requirements. The viscose fiber fabric has poor elasticity and is easy to wrinkle. ...

Examples

Embodiment 1

[0020] A knitted fabric with moisture absorption and heating function, comprising 85% by mass of cotton fiber and 15% by mass of polyacrylic acid modified acrylic fiber, the cross-sectional diameter of the cotton fiber is 11.5 μm-12.0 μm , the length is 25mm-30mm, the cross-sectional diameter of the polyacrylic acid modified acrylic fiber is 5.5 μm-7.5 μm, the fiber length is 35mm-40mm, the cotton fiber and the modified acrylic fiber are mixed and spun, spinning The imperial count of the yarn is 40, the spinning method is ring spinning, the structure of the knitted fabric with moisture absorption and heat generation function is a common jersey structure, and the finished product specification is 160cm×200g / m 2 , The large circular knitting machine model for weaving is a single-sided 34-inch 28-needle 102-way.

Embodiment 2

[0022] A knitted fabric with moisture absorption and heating function, comprising 80% by mass of cotton fiber and 20% by mass of polyacrylic acid modified acrylic fiber, the cross-sectional diameter of the cotton fiber is 12.0 μm-13.5 μm , the length is 30mm-35mm, the cross-sectional diameter of the polyacrylic acid modified acrylic fiber is 7.5 μm-8.5 μm, the fiber length is 40mm-45mm, the cotton fiber and the modified acrylic fiber are mixed and spun, spinning The imperial count of the yarn is 60, the spinning method is ring spinning, the structure of the knitted fabric with moisture absorption and heat generation function is a rib structure, and the finished product specification is 150cm×180g / m 2 , The large circular knitting machine model for weaving is single-sided 32-inch 24-needle 102-way.

Embodiment 3

[0024] A processing technology for knitted fabrics with moisture absorption and heating functions. The gray cloth is introduced into the dyeing vat, and the pretreatment, dyeing, shaping, and finished product packaging processes are carried out.

[0025] The pretreatment process is: treat the penetrating agent and caustic soda at 98°C for 30 minutes, and then lower the temperature to 70°C at a rate of 1.5°C / min to drain water; refill the water in an alkaline environment of stabilizer and hydrogen peroxide Treatment, the treatment conditions are 98°C and 30 minutes, and the temperature is reduced to 70°C according to the cooling rate of 1.5°C / min. The cooling rate in minutes is reduced to 70°C for drainage, where the pH value of the drainage is controlled at 6.8;

[0026] The dyeing process is as follows: the dyeing vat is filled with water again, and after adding deoxygenase, the oxygen content is measured to be 0 after 20 minutes at 40°C, and dyeing is started. Specifically, ...

technical field

[0001] The invention belongs to the field of knitted fabrics, and in particular relates to a knitted fabric with the function of absorbing moisture and heating and a processing technology thereof. Background technique

[0002] The basic principle of moisture absorption and heat generation of knitted fabrics is to improve the hygroscopicity of fibers so as to convert dynamic water vapor into static liquid water and kinetic energy into heat energy. Therefore, the better the water absorption of raw materials, the better the heat generation performance. At present, wool and viscose have better water absorption compared with commonly used fibers. For hygroscopic and heating products on the market, raw materials with better hygroscopicity such as wool and viscose are mostly used to make fabrics with heating function. Wool fiber fabrics are easy to burn. The ball has high maintenance requirements. The viscose fiber fabric has poor elasticity and is easy to wrinkle. ...

Examples

Embodiment 1

[0020] A knitted fabric with moisture absorption and heating function, comprising 85% by mass of cotton fiber and 15% by mass of polyacrylic acid modified acrylic fiber, the cross-sectional diameter of the cotton fiber is 11.5 μm-12.0 μm , the length is 25mm-30mm, the cross-sectional diameter of the polyacrylic acid modified acrylic fiber is 5.5 μm-7.5 μm, the fiber length is 35mm-40mm, the cotton fiber and the modified acrylic fiber are mixed and spun, spinning The imperial count of the yarn is 40, the spinning method is ring spinning, the structure of the knitted fabric with moisture absorption and heat generation function is a common jersey structure, and the finished product specification is 160cm×200g / m 2 , The large circular knitting machine model for weaving is a single-sided 34-inch 28-needle 102-way.

Embodiment 2

[0022] A knitted fabric with moisture absorption and heating function, comprising 80% by mass of cotton fiber and 20% by mass of polyacrylic acid modified acrylic fiber, the cross-sectional diameter of the cotton fiber is 12.0 μm-13.5 μm , the length is 30mm-35mm, the cross-sectional diameter of the polyacrylic acid modified acrylic fiber is 7.5 μm-8.5 μm, the fiber length is 40mm-45mm, the cotton fiber and the modified acrylic fiber are mixed and spun, spinning The imperial count of the yarn is 60, the spinning method is ring spinning, the structure of the knitted fabric with moisture absorption and heat generation function is a rib structure, and the finished product specification is 150cm×180g / m 2 , The large circular knitting machine model for weaving is single-sided 32-inch 24-needle 102-way.

Embodiment 3

[0024] A processing technology for knitted fabrics with moisture absorption and heating functions. The gray cloth is introduced into the dyeing vat, and the pretreatment, dyeing, shaping, and finished product packaging processes are carried out.

[0025] The pretreatment process is: treat the penetrating agent and caustic soda at 98°C for 30 minutes, and then lower the temperature to 70°C at a rate of 1.5°C / min to drain water; refill the water in an alkaline environment of stabilizer and hydrogen peroxide Treatment, the treatment conditions are 98°C and 30 minutes, and the temperature is reduced to 70°C according to the cooling rate of 1.5°C / min. The cooling rate in minutes is reduced to 70°C for drainage, where the pH value of the drainage is controlled at 6.8;

[0026] The dyeing process is as follows: the dyeing vat is filled with water again, and after adding deoxygenase, the oxygen content is measured to be 0 after 20 minutes at 40°C, and dyeing is started. Specifically, ...

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