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Method for removing cotton seed hulls on cotton fabrics in liquid phase by ozone

A cotton fabric, ozone technology, applied in the direction of plant fibers, textiles and papermaking, improved hand feel fibers, etc., to achieve the effects of good hand feeling, short process and remarkable effect

Inactive Publication Date: 2017-03-15
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve many problems existing in the removal of cotton seed hulls in cotton fabrics, the present invention provides a method for removing cotton seed hulls in cotton fabrics using ozone in the liquid phase

Method used

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  • Method for removing cotton seed hulls on cotton fabrics in liquid phase by ozone
  • Method for removing cotton seed hulls on cotton fabrics in liquid phase by ozone
  • Method for removing cotton seed hulls on cotton fabrics in liquid phase by ozone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: Cotton husk removal in cotton fabric

[0040] Cotton hulls were removed from desized fabrics by:

[0041](1) soaking the cotton fabric into the aqueous solution containing the non-ionic penetrant of 2g / L;

[0042] (2) Open the oxygen valve in advance to control the oxygen flow rate at 1.5L / min, then turn on the switch of the ozone reactor, and pass it into the immersion solution after the ozone is stable, keep the sealing of the reaction chamber (volume 2L), and continuously pass it into the water bath Ozone to obtain ozone water with an ozone concentration of 248 mg / L, and the fabric is immersed in this high-concentration ozone water bath for 20 minutes;

[0043] (3) After the reaction is completed, the cotton fabric is put into a 2% amino gallate A solution for rinsing reaction for 20 minutes, after rinsing is completed, continue to wash with hot water, wash with cold water, and finally dry. Wherein the structural formula of gallic acid amino ester is as ...

Embodiment 2

[0044] Example 2: Cotton husk removal in cotton fabrics

[0045] Cotton seed hulls were removed from desized cotton fabrics by the following methods:

[0046] (1) immerse the cotton fabric in the aqueous solution containing the non-ionic penetrant of 1g / L;

[0047] (2) Open the oxygen valve in advance to control the flow rate of oxygen at 1.5L / min, then open the switch of the ozone reactor, pass it into the soaking liquid after the ozone is stable, keep the sealing of the reaction chamber, and continuously pass into the water bath to obtain 248mg / min of ozone. L of ozone water, the fabric is immersed in this high-concentration ozone water bath for 20min;

[0048] (3) After the reaction is completed, the cotton fabric is rinsed in 1% amino gallate A solution for rinsing reaction for 30 minutes, after the rinsing is completed, continue to wash with hot water, wash with cold water, and finally dry.

Embodiment 3

[0049] Example 3: Cotton husk removal in cotton fabrics

[0050] Cotton seed hulls were removed from desized cotton fabrics by the following methods:

[0051] (1) immerse the cotton fabric in the aqueous solution containing the non-ionic penetrant of 1.5g / L;

[0052] (2) Open the oxygen valve in advance to control the flow rate of oxygen at 1.5L / min, then open the switch of the ozone reactor, pass it into the soaking liquid after the ozone is stable, keep the sealing of the reaction chamber, and continuously pass into the water bath to obtain 248mg / min of ozone. L of ozone water, the fabric is immersed in this high-concentration ozone water bath for 20 minutes, and the high-concentration ozone environment in the reaction chamber is maintained during this process;

[0053] (3) After the reaction is completed, the cotton fabric is put into a gallate solution with a concentration of 1% for rinsing for 30 minutes. After the rinsing is completed, continue to wash with hot water, w...

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Abstract

The invention discloses a method for removing cotton seed hulls on cotton fabrics in a liquid phase by ozone, and belongs to the technical field of textile. The cotton seed hulls on the cotton fabrics are removed by using the high oxidability of the ozone, the removal rate is up to 80%, and the effect is more significant by comparing with 60% of alkali method, 65% of hydrogen peroxide, and 45% of enzymic method. The method removes the cotton seed hulls by ozone gas, and needs no heating; thus energy source can be saved while harmful gas is removed. The operation of removing cotton seed hulls by ozone method is simple, and the using cost is low. Besides, the cotton fabrics treated by ozone is also cleaned by free-radical scavenger solution so as to remove residual hydroxyl radical and active oxygen atom and others on the fabrics, and guarantee stable performance indexes such as whiteness value and degree of polymerization of the fabrics during the subsequent placing process.

Description

technical field [0001] The invention relates to a method for removing cotton seed hulls on cotton fabrics by using ozone in a liquid phase, belonging to the technical field of textiles. Background technique [0002] The cottonseed hull itself is not a symbiosis on the fiber. When the seed cotton is ginned, the cottonseed and cotton fiber are separated, but there are still a small amount of crushed cottonseed hull residues attached to the fiber. After the fibers are spun, they are embedded in the yarn, which is hard and dark in color, which seriously affects the appearance of the fabric, so it needs to be removed during the pretreatment of cotton fabrics. [0003] The chemical composition of cottonseed hulls is lignin, tannin, cellulose, hemicellulose and other polysaccharides, as well as a small amount of protein, oil and minerals, and lignin accounts for about 25-28%. Lignin is one of the main components of the plant skeleton, and its chemical structure is very complex. It...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/34D06M13/372D06L4/50D06M101/06
CPCD06M11/34D06M13/372D06M2101/06D06M2200/50
Inventor 王强范雪荣张杰余圆圆王平袁久刚崔莉张颖
Owner JIANGNAN UNIV
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