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Method for Preparing Untwisted, Hollow, High-Count Textiles and Method for Recovering the Solute in an Alkaline Lysis Solution

a technology of alkali lysis and textiles, which is applied in the field of textiles, can solve the problems of difficult degradation, disadvantage for the environment, and high cost of pva fiber, and achieve the effects of easy alkaline soluble and degradabl

Inactive Publication Date: 2017-06-22
YU YANPING +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a method for making smooth, lightweight textiles with high counts. The method involves creating an easily soluble and degradable fibre by spinning and then reverse twisting it with natural and chemical fibers. The textile is then woven and immersed in an alkali solution to dissolve the easily soluble fibers and create an untwisted textile. The method can also involve replacing the easily soluble fibers with a yarn or non-woven fabric that is embroidered or attached to a recycled fabric to create a variety of patterns. The recovered solution after degradation can be recycled and purified, making it eco-friendly and cost-effective. The technical effects of this invention include efficient and soft textile production and environmental sustainability.

Problems solved by technology

Among them, the most commonly used degradable fiber is a PVA fiber; however, the PVA fiber is expensive, difficult to be degraded and disadvantageous for the environment, and has residual formaldehyde after degradation.
Meanwhile, the above-mentioned patents involving alkali-soluble fiber fail to concern COD environmental and recycling issues after dissolution.
In fact, after the fiber is dissolved by a strong alkali, non-biological substances can be produced in a high content, which has high COD, causes environmental pollution and are not productive.
Solutions obtained after the dissolution are discharged with waste water, which result in a huge waste.

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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  • Method for Preparing Untwisted, Hollow, High-Count Textiles and Method for Recovering the Solute in an Alkaline Lysis Solution
  • Method for Preparing Untwisted, Hollow, High-Count Textiles and Method for Recovering the Solute in an Alkaline Lysis Solution
  • Method for Preparing Untwisted, Hollow, High-Count Textiles and Method for Recovering the Solute in an Alkaline Lysis Solution

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0030]The method for preparing untwisted textiles comprises the following steps:

[0031]a. preparing an alkaline degradable slice: during the polymerization of polyester raw materials, 5-sodium sulfonate-isophthalate polyethylene glycol ester containing totally 5 wt % of polymers and isophthalate containing totally 5 wt % of polymers were added, the obtained mixture was stirred and heated to 230° C., so as to form a slurry; the obtained mixture was transformed into a reactor, meanwhile adding polyethylene glycol containing 5 wt % of polymers, so as to dilute and cool the mixture to 210° C.; sequentially polyethylene glycol having molecular weight of 6000 was added into the reactor for the period of 50 min under stirring, wherein the amount of polyethylene glycol was 5% of the total weight of the polymers; under atmosphere, the mixture was heated up to 230° C. such that the mixed raw materials were polymerized under vacuum; finally, the polymerized alkaline degradable slice successivel...

example 2

[0037]The method for preparing hollow textiles comprises the following steps:

[0038]a. preparing an alkaline degradable slice: during the polymerization of polyester raw materials, 5-sodium sulfonate-isophthalate polyethylene glycol ester containing totally 4 wt % of polymers and isophthalate containing totally 3 wt % of polymers were added, the obtained mixture was stirred and heated to 230° C., so as to form a slurry; the obtained mixture was transformed into a reactor, meanwhile adding polyethylene glycol containing 5 wt % of polymers, so as to dilute and cool the mixture to 210° C.; sequentially polyethylene glycol having molecular weight of 6000 was added into the reactor for the period of 50 min under stirring, wherein the amount of polyethylene glycol was 3% of the total weight of the polymers; under atmosphere, the mixture was heated up to 230° C. such that the mixed raw materials were polymerized under vacuum; finally, the polymerized alkaline degradable slice successively w...

example 3

[0050]The method for preparing a high-count textiles comprises the following steps:

[0051]a. preparing an alkaline degradable slice: during the polymerization of polyester raw materials, 5-sodium sulfonate-isophthalate polyethylene glycol ester containing totally 3 wt % of polymers and isophthalate containing totally 4 wt % of polymers were added, the obtained mixture was stirred and heated to 230° C., so as to form a slurry; the obtained mixture was transformed into a reactor, meanwhile adding polyethylene glycol containing 3 wt % of polymers, so as to dilute and cool the mixture to 210° C.; sequentially polyethylene glycol having molecular weight of 6000 was added into the reactor for the period of 50 min under stirring, wherein the amount of polyethylene glycol was 2% of the total weight of the polymers; under atmosphere, the mixture was heated up to 230° C. such that the mixed raw materials were polymerized under vacuum; finally, the polymerized alkaline degradable slice successi...

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 present invention discloses a method for preparing untwisted, hollow, high-count textiles comprising the following steps: a. preparing an alkaline degradable slice; b. preparing a blended spun melt; c. preparing an easily alkaline soluble and degradable fiber by spinning; d. preparing the textiles or an embroidered article. A method for recovering the solute in an alkaline lysis solution comprises an alkaline lysis solution obtained after the degradation of the easily alkaline soluble and degradable fiber is subjected to an acid precipitation, so as to produce terephthalic acid, wherein the waste water obtained by filtering meets the emission standard and is introduced to a biochemistry processing system.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to textile technical field, especially to a method for preparing untwisted, hollow, high-count textiles and a method for recovering the solute in an alkaline lysis solution.[0002]In the process of textile processing, the applications of degradable fibers particularly include: 1. the degradable (soluble) fiber is spun and blended with other fibers to form a yarn; then the yarn is woven into cloth; then the degradable fiber is degraded, thereby a high-count yarn is obtained; 2. The fiber that cannot be spun and woven into a cloth is spun and blended with the degradable fiber or combined with the degradable fiber, and then woven into a cloth; thereby the fiber that cannot be spun and woven into a cloth can be used for weaving a cloth; 3. The cloth containing the degradable fiber can be used as an embroidered fabric, so as to embroidering patterns on the cloth; finally, the degradable fiber is degraded, thereby a complete pa...

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(United States)
IPC IPC(8): D06H7/22D01F6/62D01F1/10D05C17/00
CPCD06H7/228D05C17/00D10B2331/04D01F1/10D01F6/62D02G3/04D02G3/36D04H1/4382D06B23/20D01D5/247D01F6/84D01F13/04D02G3/406Y02P70/62D01F6/92D02G3/00D04H1/00
Inventor YU, YANPINGLIU, WEIGUOYU, ERQILIU, JUNHE
Owner YU YANPING
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