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Fiber aggregate material formed by coating fine air pockets by microfibers and production process thereof

A production process, microfiber technology, applied in fiber processing, filament generation, climate sustainability, etc., can solve the problems of no sound absorption capacity, odor of rubber sheets, easy stickiness or falling off, etc., and achieve good compressibility , good bulkiness, good compression resistance and shape recovery effect

Active Publication Date: 2010-11-24
JIANGSU LIYANG NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of glass fiber is that loose fibers are easy to pollute the environment; there are pores inside, connected to each other, water vapor can be easily immersed, individual products are protected by a protective layer, if damaged, it will cause pollution, pose a threat to health, and have no sound absorption capacity
The rubber sheet has a peculiar smell and is easy to stick or fall off

Method used

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  • Fiber aggregate material formed by coating fine air pockets by microfibers and production process thereof
  • Fiber aggregate material formed by coating fine air pockets by microfibers and production process thereof
  • Fiber aggregate material formed by coating fine air pockets by microfibers and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The polypropylene polymer particles are melted by the extruder and then extruded into the melt metering pump, and then transported to a spinning die through the melt metering pump. Stretch, get the microfibers. The fiber fineness is selected as an average diameter of 2 microns, and the spinneret die is set above an air cavity forming cavity, and the microfibers in a molten state quickly wrap the thick fiber in the cavity to form an air cavity. On one side of the cavitation forming cavity, a fan continuously sends the screened crude fibers into the cavity, and the crude fibers sent into the cavity are continuously wrapped by the molten microfibers ejected from the upper part. The thick polyester polyester fiber with the shape recovery memory function is selected, the average diameter of the fiber fineness is between 20 microns, and the length is 4 cm. The symbiosis of microfibers and thick fibers in the cavitation forming box enters the cavitation expansion box below th...

Embodiment 2

[0028] The polypropylene polymer particles are melted by the extruder and then extruded into the melt metering pump, and transported to a spinning die through the melt metering pump. The spinneret die opening is a spinneret hole with a linear arrangement in the transverse direction at an interval of 0.3 mm, and the diameter of the spinneret hole is selected as 0.25 mm. The transverse length of the spinneret die is greater than 100 cm. Both sides of the spinneret die are stretched by high-speed and high-temperature air flow to obtain microfibers. The fiber fineness is selected as an average diameter of 2 microns, and the spinneret die is set above an air cavity forming cavity, and the microfibers in a molten state quickly wrap the thick fiber in the cavity to form an air cavity. On one side of the cavitation forming cavity, a fan continuously sends the screened crude fibers into the cavity, and the crude fibers sent into the cavity are continuously wrapped by the molten microf...

Embodiment 3

[0033] The polypropylene polymer particles are melted by the extruder and then extruded into the melt metering pump, and transported to a spinning die through the melt metering pump. The spinneret die opening is a spinneret hole with a linear arrangement in the transverse direction at an interval of 0.3 mm, and the diameter of the spinneret hole is selected as 0.25 mm. The transverse length of the spinneret die is greater than 100 cm. Both sides of the spinneret die are stretched by high-speed and high-temperature air flow to obtain microfibers. The fiber fineness is selected as an average diameter of 2 microns, and the spinneret die is set above an air cavity forming cavity, and the microfibers in a molten state quickly wrap the thick fiber in the cavity to form an air cavity. On one side of the cavitation forming cavity, a fan continuously sends the screened crude fibers into the cavity, and the crude fibers sent into the cavity are continuously wrapped by the molten microf...

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Abstract

The invention discloses a fiber aggregate material formed by coating fine air pockets by microfibers, which is a novel fibrous material that two components microfibers and coarse fibers are symbiotic. The invention also discloses a production process for the fiber aggregate material, which comprises the following steps of: making a raw material pass through a spinning die orifice for direct melting spinning, and coating the molten polyolefine microfibers on the peripheries of polyester coarse fibers with the shape memory function, wherein the shape memory coarse fibers are used as a carrier for forming the air pockets; quickly cooling to normal temperature and curing; and finally, forming the microfiber aggregate material with irregular air pockets. The material can be used for making thermal materials of ski shirts, field tents, military battle-dress uniforms, thermal equipment for field camping of soldiers, sleeping bags, climbing clothes, thermal underwear, gloves and shoes, and is also used for making various sound-absorbing thermal insulation automobile interior materials and the like.

Description

technical field [0001] The invention relates to a fiber accumulation material formed by wrapping fine air pockets with microfibers and a production process thereof. Background technique [0002] There are three main types of thermal insulation materials currently on the market. One is natural materials, such as cotton wadding, down, sheepskin and silk velvet, etc.; the other is made of a single pure fiber material, such as sprayed cotton wadding, acupuncture wadding, etc.; Made, such as space cotton, Antarctic cotton, sun velvet, etc. on the market. [0003] The application of natural fibers is greatly limited due to the shortage of sources, inconvenient washing, easy hardening, high specific gravity and easy insects. Although chemical fiber wadding has good cutability, seamability, wearability and washability, it has poor hygroscopicity and air permeability, and feels stuffy when worn. The thermal insulation material processed by compounding a variety of materials, becau...

Claims

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Application Information

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IPC IPC(8): D01D5/00D01D5/098D01D5/253D01D11/00
CPCY02P70/62
Inventor 尤祥银杨卫平
Owner JIANGSU LIYANG NEW MATERIALS CO LTD
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