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

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...

AI Technical Summary

Benefits of technology

[0023]The advantage of the present invention is that: the method for preparing untwisted, hollow, high-count textiles of the present invention comprises 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, the easily alkaline soluble and degradable fiber comprising filament yarn, staple fiber and fiber strips; d. the staple fiber consisting of natural fiber and chemical fiber being combined with the filament yarn in the easily alkaline soluble and degradable fiber, then being reverse twisted, wherein the degree of the reverse twist substantively being the same as that of the instinct twist degree of the staple fiber; weaving textiles, then taking the textiles into an alkali solution so as to dissolve the easily degradable fibers, thereby obtaining an untwisted textiles; alternatively, by open-end spinning or non-open-end spinning manner, the easily alkaline soluble and degradable fiber filament yarn or yarn being peripherally wrapped by periphery fibers, so as to produce a core-spun yarn, then the core-spun yarn being woven into cloth, and finally the cloth being immersed into an alkali solution, so as to dissolve the easily alkaline soluble and degradable fiber, thereby obtaining a hollow textiles; alternatively, the easily alkaline soluble and degradable fiber being spinning with a nature fiber or synthetic fibers together, or the fiber strip of the easily alkaline soluble and degradable fiber being combed with a cotton fiber strips or a hemp fiber strips, so as to form a yarn for weaving a cloth; then the cloth being immersed into an alkali solution, so as to dissolve the easily alkaline soluble and degradable fiber, thereby obtaining a yarn high-count textile; alternatively, making the easily alkaline soluble and degradable fiber into a non-woven fabric, and then making the non-woven fabric into an embroidery base cloth, then the embroidery base cloth being embroidered by using a embroidery thread so as to form a variety of patterns; then the non-woven fabric embroidered with patterns being immersed into an alkali solution, so as to dissolve the easily alkaline soluble and degradable fiber, thereby obtaining an embroidered article. By using the above step scheme, the method for preparing untwisted, hollow, high-count textiles of the present invention can be used for efficiently preparing a soft and light textiles.

[0024]Another advantage of the present invention is that in the method for recovering the solute in an alkaline lysis solution of the present invention, an alkaline lysis solution obtained after the degradation of the easily alkaline soluble and degradable fiber is subjected to a 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. The method for recovering the solute in an alkaline lysis solution of the present invention can be used for recovering the alkaline lysis solution obtained after the dissolution of the easily alkaline soluble and degradable fiber, which is beneficial for environment and is economical.

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.

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