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A heat-insulating elastic non-woven material made of waste textile fibers and its preparation method

A technology for non-woven materials and textile fibers, applied in non-woven fabrics, textiles and papermaking, fiber processing and other directions, can solve problems such as unstable fiber structure, and achieve the effects of simple method, guaranteed hygiene and low cost

Active Publication Date: 2020-07-31
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention proposes a heat-insulating elastic nonwoven material made of waste textile fibers and its preparation method, which solves the technical problem of unstable fiber structure prepared by reprocessing waste fibers in the prior art

Method used

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  • A heat-insulating elastic non-woven material made of waste textile fibers and its preparation method
  • A heat-insulating elastic non-woven material made of waste textile fibers and its preparation method
  • A heat-insulating elastic non-woven material made of waste textile fibers and its preparation method

Examples

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Embodiment 1

[0028] This embodiment provides a method for preparing thermal insulation elastic felt from waste textile fibers, comprising the following steps:

[0029] 1. Tear into pieces: send the waste textiles into two parallel three-knife cutting machines to form cloth pieces with a size of 5*15cm. The speed of the three-knife cutting machines is set at 150 stabs / min;

[0030] 2. Cracking into fibers: the cloth cut in step 1 is sent to the foreign fiber separator after two openings, to separate buttons and zippers, and then through two fine openings to loosen them into loose fibers to form a waste fiber mixture , set the speed of the rough opening structure to 350r / min; the preferred feature of the rough opening feeder is a saw-toothed opening structure supporting arc-shaped teeth, the inner angle of the optimal arc-shaped teeth is 75°, the axial tooth spacing is 3mm, and the circumference The pitch is 20mm.

[0031] 3. Packing: Feed the waste fiber mixture into the fiber baler, and w...

Embodiment 2

[0036] This embodiment provides a method for preparing thermal insulation elastic felt from waste textile fibers, comprising the following steps:

[0037] 1. Tear into pieces: Send the waste textiles to two parallel three-knife cutting machines to form cloth pieces of 5*10cm in size. The speed of the three-knife cutting machines is set at 195 stabs / min;

[0038] 2. Cracking into fibers: the cloth cut in step 1 is sent to the foreign fiber separator after two openings, to separate buttons and zippers, and then through two fine openings to loosen them into loose fibers to form a waste fiber mixture , set the speed of the rough opening structure to 350r / min; the preferred feature of the rough opening feeder is a sawtooth opening structure with arc-shaped teeth, the inner angle of the optimal arc-shaped teeth is 95°, the axial tooth spacing is 6mm, and the circumference The vertical spacing is 36mm.

[0039]3. Packing: Feed the waste fiber mixture into the fiber baler, and withst...

Embodiment 3

[0044] This embodiment provides a method for preparing thermal insulation elastic felt from waste textile fibers, comprising the following steps:

[0045] 1. Tear into pieces: send the waste textiles into two parallel three-knife cutting machines to form cloth pieces with a size of 15*15cm. The speed of the three-knife cutting machines is set at 160 stabs / min;

[0046] 2. Cracking into fibers: the cloth cut in step 1 is sent to the foreign fiber separator after two openings, to separate buttons and zippers, and then through two fine openings to loosen them into loose fibers to form a waste fiber mixture , set the speed of the coarse opening structure to 350r / min; the preferred internal angle of the arc-shaped teeth is 95°, the axial tooth spacing is 3mm, and the circumferential spacing is 36mm.

[0047] 3. Packing: Feed the waste fiber mixture into the fiber baler, and withstand the pressure of 40Mpa to form a bulk density of 390kg / m 3 The fiber package, the size of the fiber...

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Abstract

The invention discloses a heat insulation elastic non-woven material manufactured by utilizing waste textile fibers and a preparation method thereof. The preparation method comprises the following steps of: firstly, carrying out processes of grinding, opening and the like on textile fiber products, such as waste clothes and non-woven fabrics, which are used as raw materials, to obtain a waste fiber mixture of various natural fibers and chemical fibers; then compressing the waste fiber mixture into a fiber bale and carrying out crimping sizing processing in a high-temperature high-humidity state; then after the fiber bale is blended with thermoplastic fibers, carrying out air laying to prepare a four-layer stereoscopic structure fiber web; by a acupuncture-hot air composite web fixing technical process, preparing the heat insulation elastic non-woven material. According to the invention, various waste fiber products are prepared into the fiber non-woven material with the stereoscopic structure and the fiber non-woven material can be well used for heat insulation of buildings and vegetable greenhouses and meanwhile, also has high structural elasticity and intensity; according to theinvention, not only is the problem of secondary pollution of the waste fiber products solved, but also construction cost and energy consumption of buildings can be reduced.

Description

technical field [0001] The invention belongs to the technical field of textiles, and relates to a preparation method of fiber materials, in particular to a heat-insulating elastic nonwoven material made of waste textile fibers and a preparation method thereof. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, the per capita fiber consumption has also increased. The fibers are mainly natural fibers such as cotton and hemp and chemical fibers such as polyester, polypropylene, and cellulose fibers, and most of the fiber products are blends. The recycling and reuse of waste fiber products has become an urgent issue in modern society. [0003] At present, the main treatment methods for waste fiber products are incineration, burial or sorting and reuse, and the toxic gas and fine particles produced by incineration will cause secondary pollution; and the way of burial will not only occupy rare land resour...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4374D04H1/4382D04H1/485D01G11/04
CPCD01G11/04D04H1/4374D04H1/4382D04H1/485Y02W30/66
Inventor 张恒甄琪郭杰柳洋安红玉申亚柯聂卫娟李书润郭志华章伟张一风
Owner ZHONGYUAN ENGINEERING COLLEGE