Soluble textile recovery, regeneration and recycle technology

A technology of textiles and technology, applied in the field of recovery, regeneration and recycling of dissolvable textiles, can solve the problems of waste of resources, short length, low value, etc., and achieve the effect of easy identification

Inactive Publication Date: 2016-11-02
余燕平 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Countless textiles around the world become waste products that can no longer be used, or used at a low level, which will cause a huge waste of resources and secondary pollution of the environment
The existing textile fibers do not have technologies and products that can be easily processed and recycled. The main reason is that the raw material composition, color, and garment accessories of textiles are complex; the fabric structure is tight, the fiber damage is large after opening, and the use value is low.
[0003] At present, on the market, only high-value textiles such as pure cashmere and aramid fibers are opened and carded to obtain low-strength and short-length fibers for low-value recycling.
[0004] Another recycling path is to recycle PET bottles, and then wash and granulate them to make PET fibers. However, the resulting fiber textiles cannot be used in the end and become waste and pollutants.
Or the recovered pure pet garments are decomposed by high-temperature melting and chemical alcoholysis to obtain pta, but this method is costly, and it is only for 100% pet fabrics, while for blending other non-PET fabrics, not applicable
This method is limited by the large

Method used

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  • Soluble textile recovery, regeneration and recycle technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, 100% controllable soluble fiber fabrics and dissolving, recycling and recycling technology of soluble clothing accessories, which includes the following process steps, specifically:

[0042] a, in the polyester raw material polymerization process, add the 5-sodium sulfonate-polyethylene glycol isophthalate and the isophthalic acid of 4% by the total weight of the polymer, beating and stirring And heat up to 230°C at the same time; then move to the reactor and add polyethylene glycol with a total polymer weight of 10% to dilute it and cool it down to 210°C; continue to add polyethylene glycol to the reactor, this Part of the polyethylene glycol accounts for 10% of the total weight of the polymer. The polyethylene glycol is added within 50 minutes and stirred at the same time. The temperature is raised to 230°C under normal pressure and the mixed material is polymerized in a vacuum state. The alkali after polymerization is degraded. Finally, the slices are c...

Embodiment 2

[0049] Embodiment 2, the fiber fabric of the blended yarn fabric of controllable soluble fiber and cellulose fiber and the dissolution, recovery and reuse technology of soluble clothing accessories, which includes the following process steps, specifically:

[0050] a, the controllable soluble short fiber prepared in Example 1 is blended with cellulose fiber (such as cotton, hemp and artificial fiber), the blending ratio is 65 / 35, 50 / 50, etc.; the yarn count is conventional Cellulose fiber or blended yarn specifications; weaving according to conventional processes; dyeing with reactive dyes and disperse dyes in two baths of polyester and cellulose fibers; thus, fabrics, including woven and knitted fabrics;

[0051] 1. After the above-mentioned staple fiber blended yarn is plyed and threaded, it can be used as sewing thread for such textiles;

[0052] 2. The above-mentioned garments and textiles are paired with apparel accessories, which are hard soluble apparel accessories that...

Embodiment 3

[0056] Embodiment 3, controllable dissolving, recycling and recycling technology of blended yarn of soluble fiber and cellulose fiber plus spandex fiber fabric and soluble clothing accessories, which includes the following process steps, specifically:

[0057] a. The polymerized raw material prepared in Example 1 is subjected to a conventional spinning process to produce short fibers (3.6cn / dtex strength, 25% elongation at break) with a length of 38mm and a fineness of 1.5D, which will be controllable Soluble fiber short fiber, blended with cellulose fiber (such as cotton, hemp and artificial fiber), the blending ratio is 65 / 35, 50 / 50, etc., the yarn is interwoven with spandex or parallel elastic yarn, according to the conventional weaving process Woven or knitted fabrics; polyester and cellulose fibers are dyed with reactive dyes and disperse dyes in two baths; thus, fabrics, including woven and knitted fabrics, are sewn into finished textiles;

[0058] 1. After the above-men...

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Abstract

The invention discloses a soluble textile recovery, regeneration and recycle technology. According to the technology, polyester-type solubility-controllable soluble fibers are woven through a conventional weaving method, the obtained fabric is dyed and finished and then is subjected to tailoring to obtain ready-made clothes or is subjected to injection molding processing to obtain a soluble cloth accessory, the ready-made clothes or the soluble cloth accessory is dissolved under a certain condition, the solution is filtered, the dissolved matters are recovered so that high purity terephthalic acid and glycol are obtained, the terephthalic acid and glycol are used for soluble polyester polymerization so that soluble polyester slices are obtained, the soluble polyester slices can be re-spun to form soluble fibers for recycle, a loose undissolved textile is disinfected, stripped or re-dyed to form a loose fiber polymer with good quality, the loose fiber polymer is dried and optionally, the dried fiber polymer is subjected to gentle carding so that high-quality textile fibers are obtained for recycle.

Description

technical field [0001] The invention relates to the technical fields of fiber processing, textile processing and environmental protection, and in particular to a technology for recycling, regenerating and recycling soluble textiles. Background technique [0002] Countless textiles all over the world become discarded products that cannot be reused or used at a low level, which will cause a huge waste of resources and secondary pollution of the environment. The existing textile fibers do not have technologies and products that can be easily processed and recycled. The important reasons are that the raw material composition, color, and garment accessories of textiles are complex; the fabric structure is tight, the fiber damage is large after opening, and the use value is low. [0003] At present, on the market, only high-value textiles such as pure cashmere and aramid fibers are opened and carded to obtain low-strength and short-length fibers for low-value recycling. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/08C08J11/06C08J11/04C08L67/02
CPCC08J11/04C08J11/06C08J11/08C08J2367/02C08J2367/00D01G11/00D02G3/02Y02W30/62Y02W30/66D01F6/00D01G21/00D10B2331/04Y02P20/143
Inventor 余燕平刘卫国余尔琪刘俊和
Owner 余燕平
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