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An improved spunbond device, forming method and split-release bicomponent filament-based microfiber material

A technology of ultra-fine fiber and molding method, which is applied in the direction of ultrasonic/sonic fiber processing, textile and papermaking, fiber chemical characteristics, etc., and can solve the problem of non-woven materials that are difficult to balance the relationship between green preparation process, medical protection characteristics and flexibility, etc. problems, to achieve the effects of high fiber opening rate, wide application fields, and environmental protection output

Active Publication Date: 2021-08-27
ZHONGYUAN ENGINEERING COLLEGE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nonwoven materials obtained by the above preparation methods are difficult to balance the relationship between the green preparation process, medical protection characteristics and flexibility.

Method used

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  • An improved spunbond device, forming method and split-release bicomponent filament-based microfiber material
  • An improved spunbond device, forming method and split-release bicomponent filament-based microfiber material
  • An improved spunbond device, forming method and split-release bicomponent filament-based microfiber material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A method for forming a split-type two-component filament-based ultrafine fiber material, the forming process is as follows figure 1 As shown, the steps are as follows:

[0055] (1) Preparation process of magnetic electret particles

[0056] First, ferric iron tetroxide powder with an average particle size of 500nm and polytetrafluoroethylene with an average particle size of 300nm were physically blended at a mass ratio of 1:2 to form magnetic electret particles.

[0057] Then the magnetic electret particles and polyester chips (Sinopec Tianjin Branch) are sent into the granulator with a mass ratio of 5:95 to obtain magnetic electret particles / polyester chips;

[0058] (2) The preparation process of split-off type virgin silk

[0059] The magnetic electret particles / polyester chips (SDN301, Sinopec Tianjin Branch) described in step 1, polyamide chips (Zhejiang Longcheng Chemical Fiber Co., Ltd.) and polyolefin elastomers (7050FL, Exec Sen Mobil Chemical Industry) acco...

Embodiment 2

[0077] A method for forming a split-type two-component filament-based superfine fiber material, the steps are as follows:

[0078] The preparation method of this embodiment is the same as the preparation method of Example 1, the difference is that the ferric iron tetroxide powder is replaced with 300nm cobalt tetraoxide powder, and the spinning assembly is replaced with a hollow-orange segment (32 petals) to obtain a split Release-type two-component filament-based microfiber material, see the surface of the sample Figure 9 .

[0079] It is 46.8g / m to prepare density by utilizing the splitting type two-component filament-based superfine fiber material of the present embodiment 2 The two-component filament microfiber nonwoven material with medical protective properties, the test results of its characteristics are shown in Table 1.

Embodiment 3

[0081] A method for forming a split-type two-component filament-based ultrafine fiber material, the steps are as follows: The preparation method of this embodiment is the same as that of Example 1, the difference is that polyester chips are replaced by polylactic acid chips ( 6252D, NatureWorks), polyamide slices are replaced by polyolefin elastomer slices, and polytetrafluoroethylene is replaced by hindered amine additives; Figure 5 The tilting power of B makes the split-type two-component filament-based ultrafine fiber material.

[0082] It is 98.9g / m to prepare the surface density by utilizing the split-type two-component filament-based ultrafine fiber material of the present embodiment 2 The two-component filament microfiber nonwoven material with medical protective properties, the test results of its characteristics are shown in Table 1.

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Abstract

The invention belongs to the field of spun-bonded non-woven materials, and relates to the preparation of superfine fibers, in particular to an improved spunbond device, a molding method and a splitting two-component filament-based superfine fiber material. It includes the following steps: (1) preparation process of magnetic electret particles; (2) preparation process of split-type virgin silk; (3) fibrillation-forming process of bicomponent filament ultrafine fiber nonwoven material; (4) The broomization-three-resistant finishing process of the two-component filament ultrafine fiber nonwoven material; (5) The corona-annealing electret process of the two-component filament ultrafine fiber nonwoven material, and finally obtain a A two-component filament ultrafine fiber nonwoven material with strength, flexibility and medical protection properties; the method has the characteristics of green environmental protection and reliable method, and has the advantage of large-scale application.

Description

technical field [0001] The invention belongs to the field of spun-bonded non-woven materials, and relates to the preparation of superfine fibers, in particular to an improved spunbond device, a molding method and a splitting two-component filament-based superfine fiber material. Background technique [0002] As a fiber aggregate with engineering structural integrity made by physical or chemical methods, non-woven materials are a functional fiber material derived from textile molding technology. field. [0003] Among them, non-woven materials are used in the field of isolation clothing, protective clothing, protective helmets and other fields in the medical and health field to isolate viruses in the air and the penetration of blood, alcohol and body fluids. Therefore, the main properties of isolation protective clothing are: (1) It can efficiently capture tiny dust and prevent the infiltration of fine particles such as viruses; (2) It has excellent liquid shielding propertie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H3/005D04H3/147D01F1/10D06M10/02
CPCD01F1/10D04H3/005D04H3/147D06M10/02D10B2501/04D10B2503/06D10B2505/20D10B2509/00
Inventor 张恒甄琪钱晓明崔景强王镕琛马雨龙宋卫民赵宝宝朵永超刘永胜张一风
Owner ZHONGYUAN ENGINEERING COLLEGE
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