Preparation method of regenerated fibers

A technology for regenerated fibers and fibers, applied in the field of textile manufacturing, can solve problems such as incomplete functions and difficult pyrolysis of mixed fibers, and achieve the effects of improving functionality, increasing use effects, and solving resource waste.

Inactive Publication Date: 2019-02-05
JIESHOU TIANZHU TEXTILE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for preparing regenerated fibers. By using the method, a product with complete functions, high quality, flame retardant, antibacterial and no static e

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of preparation method of regenerated fiber, it is characterized in that, comprises the steps:

[0030] In the first step, the waste materials containing polyester fibers and mint fibers are crushed separately to obtain raw materials with particle sizes of 1000 μm, 50 μm and 1 μm in coarse crushing, fine crushing and fine crushing, and then wave cleaning is carried out. The wave cleaning in the invention is a cleaning method in which the vibrating water flow fluctuates up and down; after that, it is centrifuged, and the centrifugal speed is 5000r / min. The drying temperature is 0.2MPa, the drying temperature is 100°C, and the drying time is 40min.

[0031] In the second step, the vacuum spraying under the working condition of 1.5MPa is used to spray the phosphorous polymer, specifically triphenyl phosphite, with a content of 20wt%, on the polyester powder after drying treatment in the first step. The fiber and the mint fiber are mixed in the powder, and melted and...

Embodiment 2

[0036] A kind of preparation method of regenerated fiber, it is characterized in that, comprises the steps:

[0037] In the first step, the waste materials containing polyester fibers and mint fibers are crushed separately to obtain raw materials with particle sizes of 10000 μm, 100 μm and 5 μm in the primary crushing, fine crushing and fine crushing, and then wave cleaning. The wave cleaning in the invention is a cleaning method in which the vibrating water flow fluctuates up and down; after that, it is centrifuged, and the centrifugal speed is 3000r / min. is 0.8MPa, the drying temperature is 120°C, and the drying time is 50min.

[0038] In the second step, the vacuum spraying under the working condition of 0.5MPa is used to spray the phosphorous polymer, specifically triphenyl phosphite, with a content of 15wt%, in the polyester powder after drying treatment in the first step. The fiber and the mint fiber are mixed in the powder, and melted and granulated at a melting temper...

Embodiment 3

[0043] A kind of preparation method of regenerated fiber, it is characterized in that, comprises the steps:

[0044] In the first step, the waste materials containing polyester fibers and mint fibers are crushed separately to obtain raw materials with particle sizes of 5000 μm, 50 μm and 3 μm in primary crushing, fine crushing and fine crushing, and then wave cleaning. The wave cleaning in the invention is a cleaning method in which the vibrating water flow fluctuates up and down; after that, it is centrifuged, and the centrifugal speed is 4500r / min. is 0.5MPa, the drying temperature is 115°C, and the drying time is 45min.

[0045] In the second step, the vacuum spraying under the working condition of 1.0MPa is used to spray the phosphorous polymer, specifically triphenyl phosphite, with a content of 18wt%, on the polyester powder after drying treatment in the first step. The fiber and the mint fiber are mixed in the powder, and melted and granulated at a melting temperature ...

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Abstract

The invention discloses a preparation method of regenerated fibers. The preparation method comprises the following steps: step 1, carrying out primary treatment on waste raw materials; step 2, mixing,melting and granulating; step 3, preparing graphene master batch; step 4, mixing modified polyester fiber master batch and the graphene master batch and melting; blending to obtain regenerated modified polyester fibers; step 5, loosening, carding and crossly lapping; then carrying out bundle cutting and packaging. Aiming at improving the quality of the raw materials, a raw material mixing processis carried out under a vacuum environment; the raw materials are sufficiently mixed and the quality of a finished product is improved. A phosphorus polymer, such as triphenyl phosphate or trimethyl phosphate is added by adopting a spraying manner, so that on one hand, the phosphorus polymer can be used for effectively inhibiting irreversible decomposition of the polyester fibers under a high-temperature condition and damages to ester group functional groups are avoided; on the other hand, the phosphorus polymer and graphene are subjected to oxidization reaction and have a synergistic flame-retarding effect. Furthermore, the regenerated fibers prepared by the invention have antistatic and bacterium-inhibiting effects.

Description

technical field [0001] The invention relates to the field of textile manufacturing, in particular to a method for preparing regenerated fibers. Background technique [0002] Polyester (PET), as a thermoplastic semi-crystalline polymer material, has been widely used due to its excellent wear resistance and dimensional stability. With the advancement of science and technology, the requirements and standards for polyester fibers are also increasing, and specific aspects include elasticity, strength, waterproof, heat preservation and other properties. Blending is a more effective and feasible industrial measure to solve this problem. [0003] In the era when the whole people advocate energy conservation, emission reduction, environmental protection, and resource conservation, people's awareness of environmental protection and understanding of resource utilization have gradually deepened. Especially for waste clothes, fast-moving consumer goods such as facial masks, used or use...

Claims

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Application Information

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IPC IPC(8): D01F8/14D01F8/18D01F1/09D01F1/07
CPCD01F1/07D01F1/09D01F8/14D01F8/18
Inventor 李鑫蕊
Owner JIESHOU TIANZHU TEXTILE MATERIAL
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