A kind of open width mercerizing device and mercerizing method for cotton and weft plain knitted fabrics

A technology for flat knitted fabrics and mercerization, applied in the field of open-width mercerizing devices, can solve the problems of inability to effectively control the change of the knitted fabric loop shape, poor dimensional stability, large shrinkage rate, etc. Uniform and uniform effect of coil shape change

Active Publication Date: 2020-08-04
SUZHOU CHINT ENTERPRISE DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of uneven coil shape change, large shrinkage rate and poor dimensional stability of knitted fabrics caused by the inability to effectively control the consistent mercerizing tension in the existing prior art, the invention provides a cotton weft plain knitted fabric Open-width mercerizing device and method for mercerizing

Method used

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  • A kind of open width mercerizing device and mercerizing method for cotton and weft plain knitted fabrics
  • A kind of open width mercerizing device and mercerizing method for cotton and weft plain knitted fabrics
  • A kind of open width mercerizing device and mercerizing method for cotton and weft plain knitted fabrics

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Embodiment 1

[0032] This embodiment provides a kind of open-width mercerizing device for cotton weft plain knitted fabric, see figure 1 and figure 2 , the device includes: two movable wooden frames 3 with scales, a clamp 2 and a regulator 1;

[0033] Wherein, the adjuster 1 is located outside the wooden frame 3 and is used to adjust the surface density of the cotton weft jersey fabric 4;

[0034] The two movable wooden frames 3 with scales are used to fix the cotton weft jersey 4, and the clamps 2 are used to clamp the two movable wooden frames 3 with scales.

[0035] In this embodiment, the adjuster is arranged outside the open-width mercerizing device. During the mercerizing process of the cotton weft plain knitted fabric, the mesh density of the cotton weft plain knitted fabric is adjusted by the adjuster 1 according to the tension requirement. For example, when the tension requirements are respectively For 4N, 6N, and 8N, the cotton weft jersey fabric should be expanded accordingly,...

Embodiment 2

[0037] This embodiment provides an open-width mercerizing method for cotton weft plain knitted fabrics, using the open-width mercerizing device described in Embodiment 1, and the method includes:

[0038] Select an adapted open-width mercerizing device according to the size of the cotton weft plain knitted fabric and place the cotton weft plain knitted fabric in the open-width mercerizing device to fix;

[0039] According to the requirements of the tension in the mercerizing process, adjust the mesh density of the cotton weft jersey through the regulator;

[0040] Put the open-width mercerizing device fixed with cotton weft plain knitted fabric in lye for mercerizing;

[0041] Wash the cotton weft plain knitted fabric in hot water at 50-70°C, then neutralize it in 1-3% acetic acid, then wash it in cold water, and dry it at room temperature;

[0042] Wherein, the lye is prepared by placing a sodium hydroxide solution with a concentration of 150 to 300 g / L in a mixed solution o...

Embodiment 3

[0049] In this embodiment, the tension requirement in the mercerizing process is 6N as an example. Specifically, the inner diameter of the mercerizing frame is selected to be 21.2cm×21.2cm (corresponding to a tension of 6N), and the knitted fabric is fixed, and the mesh surface density is adjusted to 1.02cm× 0.8cm (latitudinal × radial, each containing 10 coils).

[0050] Sodium hydroxide is placed in the mixture of isopropanol-ethanol and water, the ratio of isopropanol to ethanol is 40%:60%, the volume ratio of isopropanol-ethanol to water is 85:15, the concentration of sodium hydroxide The solution is 250g / L, the solution is 3L, two parts are prepared, one part is lye temperature is 10 ℃, and the other part is lye temperature is 70 ℃, the shape of the coil is controlled by adjusting the tightness. Under the assistance of ultrasonic waves, the fabric to be treated is firstly treated with hot alkali for 20s, then placed in cold alkali solution for 50s, and finally placed in w...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses an open-width mercerizing device used for a cotton weft plain knitted fabric and a mercerizing method and belongs to the textile printing and dyeing pretreatment technology field. According to the coil form changes of different areas and structure parameters, the density of an area mesh surface is adjusted so as to ensure that the force of each fabric unit is the same and the coil form changes are uniform. During a traditional mercerizing process, a fabric stress is not uniform and the coil form changes are uneven. In the invention, the above problems are solved. Simultaneously, the mixed liquor of an alcohol organic solvent and water is used to prepare a sodium hydroxide solution, and ultrasonic assisted treatment is used so that sodium hydroxide easily and uniformly penetrates in a cotton fiber and the uniformity of swelling is ensured. The cotton knitted fabric processed by the method of the invention has good glossiness, good dyeing performance, excellent softness, stable size and good wrinkle resistance, and a coil form is uniform and controllable. The alcohol organic solvent adopted in the invention is safe and non-toxic, and is easy to recycle, economic and energy saving are achieved, and the safety and environmental protection are realized.

Description

technical field [0001] The invention relates to an open-width mercerizing device and a mercerizing method for cotton weft plain knitted fabrics, belonging to the technical field of textile printing and dyeing pretreatment technology. Background technique [0002] Cotton knitted fabrics are formed by interlacing hole-like coils. Compared with woven fabrics, knitted fabrics have physical and mechanical properties such as high extensibility, low initial modulus, good elastic recovery performance, and soft hand feeling, so knitted fabrics are often used as sportswear. It is an important fabric for clothing, casual wear, underwear and gloves and hosiery. With the development of society, people are more and more advocating leisure, comfort, and returning to nature. Therefore, knitted garments made of natural fibers are very popular, and the requirements for the wearing characteristics of knitted fabrics are getting higher and higher. [0003] Mercerizing is a key process to impro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B7/08
CPCD06B7/08
Inventor 付少海李敏尉腾祥张丽平王冬王春霞田安丽
Owner SUZHOU CHINT ENTERPRISE DEV
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