Spandex fabric bleaching method

A fabric and spandex technology, applied in the field of textile bleaching and dyeing, can solve the problems of fabrics not being stretched, unable to complete bleaching quickly and effectively, and increasing costs, so as to avoid damage, shorten bleaching process time, and reduce production costs.

Active Publication Date: 2015-04-08
ZHEJIANG HANGZHOUWAN TEXTILE GOODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially if the spandex fabric is added with spandex fiber, the elasticity is very good. When bleaching, there is a problem that the fabric cannot be stretched and cannot be bleached quickly and effectively, which increases the cost.

Method used

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  • Spandex fabric bleaching method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: A bleaching method for spandex cloth, comprising the following steps: a. Put the spandex cloth 10 into the bleaching machine 1, add water, heat it to 58°C, and keep it for 9 minutes; b. Change the water to lower the water temperature to room temperature; c. add whitening agent OB-1 and scouring enzyme J-301L at room temperature and soak for 27 minutes; d. raise the temperature to 82°C, then add hydrogen peroxide, and soak for 9 minutes; e. raise the temperature to 96°C, and the heating rate is 1.5 °C / min, keep it for 45 minutes after rising to this temperature, and at the same time stretch and expand the cloth intermittently through the cloth support roller 6;

[0022] The bleaching method of this embodiment has short time, high efficiency and good bleaching effect. The bleaching time of the spandex cloth in the traditional technique is generally 1.5 hours-2 hours, and the procedure of the present invention shortens the time significantly.

Embodiment 2

[0023] Embodiment 2: A bleaching method for spandex cloth, comprising the following steps: a. Put the spandex cloth 10 into the bleaching machine 1, add water, heat to 60°C, and keep it for 11 minutes; b. Change the water to lower the water temperature to room temperature; c. add whitening agent OB-1 and scouring enzyme J-301L at room temperature and soak for 22 minutes; d. raise the temperature to 78°C, then add hydrogen peroxide, and soak for 12 minutes; e. raise the temperature to 98°C, and the heating rate is 1.5 °C / min, keep it for 40 minutes after rising to this temperature, and at the same time stretch and expand the cloth intermittently through the cloth support roller 6;

[0024] The bleaching method of this embodiment has short time, high efficiency and good bleaching effect. The bleaching time of the spandex cloth in the traditional technique is generally 1.5 hours-2 hours, and the procedure of the present invention shortens the time significantly.

Embodiment 3

[0025] Embodiment 3: a bleaching method for spandex cloth, comprising the following steps: a. Put the spandex cloth 10 into the bleaching machine 1, add water, heat to 62°C, and keep it for 10 minutes; b. Change the water to lower the water temperature to room temperature; c. add whitening agent OB-1 and scouring enzyme J-301L at room temperature and soak for 25 minutes; d. raise the temperature to 80°C, then add hydrogen peroxide, and soak for 10 minutes; e. raise the temperature to 97°C, and the heating rate is 1.5 °C / min, keep it for 42 minutes after rising to this temperature, and at the same time stretch and expand the cloth intermittently through the cloth support roller 6;

[0026] The bleaching method of this embodiment has short time, high efficiency and good bleaching effect. The bleaching time of the spandex cloth in the traditional technique is generally 1.5 hours-2 hours, and the procedure of the present invention shortens the time significantly.

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Abstract

A spandex fabric bleaching method comprises the following steps: A. putting spandex fabric into a bleaching machine, adding water, heating to 58 to 62 DEG C, and keeping for 9 minutes to 11 minutes; B. changing water to reduce the water temperature to room temperature; C. at room temperature, adding a whitening agent and scouring enzyme for soaking for 22 minutes to 27 minutes; D. heating to 78 DEG C to 82 DEG C, then adding hydrogen peroxide, soaking for 9 minutes to 12 minutes; E. heating to 96 DEG C to 98 DEG C, after heating to 96 DEG C to 98 DEG C, keeping for 40 minutes-45 minutes, and at the same time, intermittently stretching and expanding the fabric; and F. cooling to 68 to 70 DEG C, circularly washing with water. The spandex fabric bleaching method has the following advantages: (1) by the stretching and expanding operation, the spandex fabric is fully contacted with a bleaching liquid in a short period of time, the bleaching efficiency is improved, material damage caused by long time soaking of the spandex fabric in the bleaching liquid is avoided; and (2) the spandex fabric bleaching method can shorten bleaching process time, reduce the energy consumption, and reduce the production cost of enterprises.

Description

technical field [0001] The invention belongs to the field of bleaching and dyeing of textiles, and in particular relates to a method for bleaching spandex cloth. Background technique [0002] In the field of textile bleaching and dyeing, bleaching cloth is a very routine process. For example, the Chinese invention patent application whose publication number is CN103215775A discloses a method for bleaching using ozone, which reduces environmental pollution and saves costs. Another example is that the Chinese invention patent application whose publication number is CN101082176A also discloses a method for bleaching gauze using ozone water. In the method, ozone is passed into a weakly acidic aqueous solution and a surfactant is added to prepare ozone water, and then the gauze is placed Put it into it for bleaching, and the whiteness of the gauze after bleaching is high. Another example is that the Chinese invention patent application whose publication number is CN103103713A d...

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): D06L3/02D06L4/00D06L4/12D06L4/13
Inventor 孙映飞
Owner ZHEJIANG HANGZHOUWAN TEXTILE GOODS
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