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Preparation method of composite non-woven fabrics fibrous membranes

A fiber membrane, non-woven technology, applied in non-woven fabrics, textiles and papermaking, etc., can solve the problems of uneven micropores, large pore size deviation, poor filtration effect, etc., to improve pore uniformity, improve density, The effect of reducing the aperture

Active Publication Date: 2013-06-19
DALIAN HUALUN CHEM FIBER ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production process formula of non-woven fabrics generally adopts a single variety of fiber raw materials, the micropores are uneven, the pore size deviation is large, and the filtering effect is not good.

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A method for preparing a composite non-woven fabric, which includes: the steps of mixing, opening, pre-carding, cross-lapping, combing, hot-rolling, winding and cloth-forming. Short fibers are used as raw materials, and the proportion of short fibers with a fiber size of 1.5D and short fibers with a fiber size of 3D is: 1.5D accounts for 70-50%, and 3D accounts for 30-50%.

Embodiment 2

[0015] A preparation method of composite non-woven fabric, which includes: the steps of mixing, opening, pre-carding, cross-lapping, combing, hot rolling, winding and cloth forming, using circular and trilobal fiber cross-sections Short fibers are used as raw materials, and the proportion of short fibers with circular cross-section and short fiber with trilobal cross-section is: circular cross-section accounts for 70-30%, and tri-lobal-shaped short fiber accounts for 30-70%.

Embodiment 3

[0017] A method for preparing a composite non-woven fabric, which includes the steps of mixing, opening, pre-carding, cross-lapping, combing, hot-rolling, winding and cloth-forming, using short fibers with round and cross-shaped fiber sections. Fiber is used as the raw material, and the ratio of short fibers with circular cross-section and short fiber with cross-shaped cross-section is: circular cross-section accounts for 70-30%, and trilobal-shaped short fiber accounts for 30-70%.

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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PUM

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Abstract

The invention relates to a preparation method of non-woven fabrics fibrous membranes and particularly relates a preparation method of the iso-fineness, iso-section, iso-shrinkage and composite non-woven fabrics fibrous membranes which belong to the non-woven fabrics field. The method uses short fiber with different physical properties as raw materials so as to improve the uniformity of fiber web, arranged density of the fiber, especially after the fiber is conducted with hot rolling, and the uniformity of holes between the fiber greatly, when the fiber with different breaking elongation is regarded as the raw materials, when temperature increases to 120-160 degrees, the fiber net can achieve an iso-shrinkage effect. The density of the fiber wet is further improved, and hole diameter of the fiber membrane is shortened.

Description

technical field [0001] The invention relates to a method for preparing a non-woven fiber film, in particular to a method for preparing a composite non-woven fiber film with different deniers, different cross-sections and different shrinkages, which belongs to the field of non-woven fabrics. Background technique [0002] Non-woven fabrics have no weaving process, and the fibers are ended into fiber aggregates through mechanical, chemical or heat treatment, so the degree of fiber aggregation can have various characteristics, and it is lighter than ordinary fabrics and has excellent air permeability. It has been widely used in construction and medical treatment. , environmental protection, clothing, automobiles and other fields. At present, the production process formula of non-woven fabrics generally uses a single variety of fiber raw materials, the micropores are uneven, the pore size deviation is large, and the filtering effect is not good. Contents of the inven...

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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IPC IPC(8): D04H1/4382D04H1/4391D04H1/541D04H1/74
Inventor 黄有佩成枫黄耀东
Owner DALIAN HUALUN CHEM FIBER ENG
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