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Non-woven fabric and preparation method thereof

A non-woven, two-component technology, used in non-woven fabrics, textiles and papermaking, conjugated synthetic polymer rayon, etc. Difficulty of steps, etc.

Active Publication Date: 2012-07-18
厦门象屿兴泓超细材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the process of preparing non-woven fabrics by using split-type bi-component composite fibers, due to the weak physical bonding strength of polyester and polyamide, in the process of opening and carding the fibers, the bi-component composite fibers The two components will be separated in advance, that is, fiber opening, which will bring greater difficulty to the needle punching step of the non-woven fabric, resulting in the failure of smooth needle punching and even normal production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Non-woven fabric and preparation method thereof
  • Non-woven fabric and preparation method thereof
  • Non-woven fabric and preparation method thereof

Examples

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preparation example Construction

[0030] The preparation method of non-woven fabric provided by the invention comprises:

[0031] A two-component composite fiber is provided, wherein the two components in the two-component composite fiber are a polyester component and a polyamide component, and the two-component composite fiber includes a skeleton part arranged radially and filled in the skeleton The split part in the part, the two components respectively form the skeleton part and the split part, and the polyester component includes a flux that accounts for 0.1% to 4% of the total weight of the two-component composite fiber;

[0032] Opening and carding the bicomponent composite fiber, and then laying it into a fiber web;

[0033] Needling the web yields a nonwoven.

[0034] According to the present invention, the preparation of the two-component composite fiber is as follows: take polyester chips and flux as polyester components and put them into the first screw extruder for mixing. The mixing temperature i...

Embodiment 1

[0051] Take 22 parts of polyethylene terephthalate chips and dry them at 170°C, put them into a polyester spinning screw extruder to melt and knead at 280°C, and add 3 parts of flux during kneading , the flux is Polybutylene terephthalate ; 75 parts of polycaprolactam slices were dried at 85°C and put into a polyamide spinning screw extruder at 280°C for melting and kneading.

[0052] The mixed products of two screw extruders were subjected to figure 1 The 8-split spinneret is extruded to obtain as-spun fibers. The following examples all use this spinneret to extrude to obtain 8-split as-spun fibers. The lobes between the fiber skeletons are composed of polyethylene terephthalate and the lobes are polycaprolactam;

[0053] Then, the as-spun fibers are cooled and shaped by an annular cooling and blowing device, the cooling temperature is 22°C, and then oiled by oil tankers on both sides. The oil agent is 4wt% silicone emulsion, and the oil content of the fibers after oiling...

Embodiment 2 to Embodiment 5

[0056] Use polyester, flux, polyamide identical with embodiment 1 in above-mentioned four embodiments, concrete process parameter is shown in Table 2:

[0057] Measure the fiber performance of implementation 2 to embodiment 5, list in table 1.

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Abstract

The invention provides a non-woven fabric, which is characterized in that the non-woven fabric is made of bi-component composite fibers in which the two components are polyester and polyamide respectively, and the bi-component composite fibers comprise radially-arrayed skeletons and splinters filled in the skeletons, which are respectively formed by the two components. The polyester comprises 0.1to 4 percent of flux based on the total weight of the bi-component composite fibers. The flux in the polyester can increase the physical cohesive strength between the polyester and the polyamide, so that the advance fiber opening of the two components can be prevented when the two components are loosen and carded, and the smooth production of the non-woven fabric is guaranteed.

Description

technical field [0001] The invention relates to the field of chemical fibers, in particular to a non-woven fabric and a preparation method thereof. Background technique [0002] Non-woven fabric is a kind of non-woven fabric, which is generally a non-woven fabric formed by air-flow or mechanical forming of short fibers, and then needle-punched or hot-rolled. Compared with ordinary woven fabrics, non-woven fabrics have the advantages of moisture resistance, breathability, flexibility, light weight, and convenient processing, and are widely used in medical treatment, hygiene, clothing, industry, agriculture, etc. For example, non-woven fabrics are mainly used as base fabrics in the preparation of artificial leather. [0003] Microfiber artificial leather is a product developed in the synthetic leather industry in recent years. The artificial leather produced by impregnating non-woven fabrics with PU resin (polyurethane) is called PU synthetic leather. PU synthetic leather has...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4382D04H1/46D01D5/32D01F8/12D01F8/14D04H1/4334D04H1/435D04H1/485D04H1/72
Inventor 张飞跃李为富
Owner 厦门象屿兴泓超细材料有限公司
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