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Dyeing and finishing process for Sorona-cotton lycra elastic French terry

A technology for sweater cloth and cotton pull frame, applied in the direction of dyeing method, solvent dyeing, liquid/gas/vapor removal, etc., can solve the problems of restricting the hand feeling and crease degree of the fabric, the economic loss and influence of the manufacturer, and the long process route, etc. Achieve the effect of broadening the scope of use and practicability, reducing the risk of forming creases, and making the cloth smooth and wrinkle-free

Active Publication Date: 2020-01-31
湖北际华针织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current dyeing and finishing process is mainly based on intermittent production methods, with long process routes and many processing procedures. If the control is not good, it is easy to form creases in the production process.
Sorona cotton stretch sweater fabric is made of cotton yarn, and the bottom is made of soronaDTY and spandex. The traditional dyeing and finishing process is more likely to produce new creases in the production process, and some even need to be repaired. Appearance quality will bring unnecessary economic loss and influence to the manufacturer
[0004] The main reasons for the creases of Sorona cotton stretcher elastic sweater fabric are: first, the fabric is folded and squeezed in the dyeing vat, and when the temperature rises and falls too fast, the difference in fiber shrinkage in a short time will cause the fabric coil to shift and deform; The reason is that the three fibers of the fabric shrink inconsistently during the dyeing and finishing process. Once pulled, it will cause changes in the structure of the fabric, and then folded and squeezed to form creases; the third is that the heating and cooling speed in the dyeing and finishing process not only affects the dyeing level It also restricts the feel and crease degree of the fabric. If the thermal processing temperature is not properly controlled, the surface temperature of the fabric will be suddenly cooled or heated, and the fiber will cause the fabric surface to crease due to heat shrinkage.

Method used

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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  • Dyeing and finishing process for Sorona-cotton lycra elastic French terry
  • Dyeing and finishing process for Sorona-cotton lycra elastic French terry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The dyeing and finishing process of Sorona cotton stretcher elastic sweater fabric includes the following steps:

[0033] (1) Pre-setting, place the Sorona cotton stretch hoodie loose cloth for 24 hours, so that it can fully retract naturally in a relaxed state. Use needle plate type setting machine to pre-set, the temperature is 185 ℃, and the vehicle speed is 20m / min.

[0034] (2) For the first dyeing, put the pre-shaped Sorona cotton stretch fabric into the clear water of the high-temperature and high-pressure airflow dyeing machine. After entering the fabric, the temperature is raised to 50°C, and the auxiliary agent before dyeing is added, and the dispersing and leveling agent is added first. RDN and anti-wrinkle agent BTO-R4, the content of dispersing and leveling agent RDN is 1g / L, the content of anti-wrinkle agent BTO-R4 is 1g / L, then add degreasing agent, its content is 1g / L, add glacial acetic acid to adjust the pH to 4.0 , and then add disperse dyes, fully d...

Embodiment 2

[0046] The dyeing and finishing process of Sorona cotton stretcher elastic sweater fabric includes the following steps:

[0047] (1) Pre-setting, place the Sorona cotton stretcher elastic sweater cloth loose cloth for 27 hours, so that it can fully retract naturally in a relaxed state. Use a needle plate type setting machine to pre-set, the temperature is 180 ° C, and the speed is 23m / min.

[0048] (2) For the first dyeing, put the pre-shaped Sorona cotton stretch fabric into the clear water of the high-temperature and high-pressure airflow dyeing machine. After entering the fabric, the temperature is raised to 50°C, and the auxiliary agent before dyeing is added, and the dispersing and leveling agent is added first. RDN and anti-wrinkle agent BTO-R4, the content of dispersing and leveling agent RDN is 1g / L, the content of anti-wrinkle agent BTO-R4 is 1g / L, then add degreasing agent, its content is 1g / L, add glacial acetic acid to adjust the pH to 4.5 , and then add disperse ...

Embodiment 3

[0058] The dyeing and finishing process of Sorona cotton stretcher elastic sweater fabric includes the following steps:

[0059] (1) Pre-setting, place the Sorona cotton stretcher elastic sweater loose cloth for 31 hours, so that it can fully retract naturally in a relaxed state. Use a pin plate type setting machine to pre-set, the temperature is 190 ° C, and the speed is 25 m / min.

[0060] (2) For the first dyeing, put the pre-shaped Sorona cotton stretch fabric into the clear water of the high-temperature and high-pressure airflow dyeing machine. After entering the fabric, the temperature is raised to 50°C, and the auxiliary agent before dyeing is added, and the dispersing and leveling agent is added first. RDN and anti-wrinkle agent BTO-R4, the content of dispersing and leveling agent RDN is 1g / L, the content of anti-wrinkle agent BTO-R4 is 1g / L, then add degreasing agent, its content is 1g / L, add glacial acetic acid to adjust the pH to 4.3 , and then add disperse dyes, fu...

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 a dyeing and finishing process for Sorona-cotton lycra elastic French terry. The dyeing and finishing process includes pre-setting, primary dyeing, opening, primary setting, secondary dyeing, opening, drying and secondary setting to obtain the dyed Sorona-cotton lycra elastic French terry. Based on the characteristics of Sorona fibers, the Sorona fibers are subjected to high-temperature setting for two times, and the Sorona fibers and cotton are dyed respectively. The Sorona-cotton lycra elastic French terry is dyed and finished by the dyeing and finishing process, theelasticity of the Sorona fibers and spandex is retained, the dyeing time is short, the problem of creases on cloth surfaces is solved, and the French terry has a unique super-elastic style.

Description

technical field [0001] The invention relates to the technical field of fabric dyeing and finishing, in particular to the dyeing and finishing process of sorona cotton stretcher elastic sweater fabric. Background technique [0002] Sorona cotton stretcher stretch sweater fabric, the main components are sorona fiber, cotton and spandex, Sorona polymer is the latest advanced polymer platform launched by DuPont of the United States. It can not only endow fibers and fabrics with unique properties, but also revolutionizes the use of biotechnology in chemical fiber raw materials in order to achieve the perfect combination of textile functions and environmental protection. Sorona fiber has a high elastic recovery rate, and its elasticity is longer than other normal elastic fibers. The fabric's elasticity can reach 20%. The lower dyeing temperature is more energy-saving than ordinary polyester, and the dyeing rate is higher. It is widely used in the field of knitted fabrics and has ...

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 Applications(China)
IPC IPC(8): D06P3/85D06P1/00D06P1/16D06P5/02D06M15/643D06B21/00D06B9/02D06B3/18D06B15/00D06C27/00D06C7/02D06M101/06D06M101/38
CPCD06P3/8204D06P1/16D06P1/0032D06P5/02D06M15/643D06B21/00D06B9/02D06B3/18D06B15/00D06C27/00D06C7/02D06M2101/06D06M2101/38D06B2700/36
Inventor 李晛
Owner 湖北际华针织有限公司
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