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Manufacturing method of bast fiber nonwoven fabric

A manufacturing method and technology of hemp fiber, which is applied in the field of non-woven fabrics containing hemp fiber, can solve the problems of insufficient fiber opening, easy breakage of hemp fiber, complicated calendering and setting steps, etc., so as to ensure the bonding effect and simplify Effect of Hot Roll Forming Process

Inactive Publication Date: 2008-12-17
SUZHOU MOWEI NATURAL FIBER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by this invention: at first be that the non-woven fabric that is made of hemp fiber and bonded fiber or hemp fiber and bonded fiber and other fibers except hemp fiber and bonded fiber in the prior art is easy to cause hemp fiber Fracture, or other fibers are not fully opened, affecting the quality of non-woven fabrics; in addition, the present invention solves the problem of softness of non-woven fabrics; and then provides a hemp fiber non-woven fabric that can avoid the easy breakage of hemp fibers and is well formed Cloth Manufacturing Method
[0008] The second problem to be solved by the present invention is the complex technical problem of calendering and setting steps in the prior art, and then provides a simple and efficient manufacturing method of hemp fiber nonwoven fabric

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

[0022] Get the flax fiber that is 25% by mass percentage, 30% bonding fiber low-melting point chemical fiber polypropylene fiber and 45% cotton fiber, the flax fiber is opened once (through testing, the average length of hemp fiber reduces 33%), to above-mentioned adhesive Knot fiber and cotton fiber are opened twice, and the above-mentioned opened flax fiber, binder fiber and cotton fiber are mixed; the above-mentioned mixed fiber is carded into a web by a carding machine, thereby forming a fiber web of the above-mentioned mixed fiber .

[0023] The fiber web obtained above is subjected to one, two or three times of needling through a needling machine, and the needling is 12,500 punches / m2; On the machine, the hot roll is used to hot-roll the fiber web to produce a high-quality hemp fiber non-woven fabric with good hand feeling.

Embodiment 2

[0025] Get the flax fiber that is 50% by mass percentage, 40% bonding fiber low-melting point chemical fiber polypropylene fiber and 10% polyester fiber, flax fiber is opened once (after testing, the average length of hemp fiber is reduced by 35%), to the above-mentioned sticky fiber Knot fibers and cotton fibers are opened three times, and the above-mentioned opened flax fibers, binder fibers and polyester fibers are mixed; the above-mentioned mixed fibers are disorderly formed into a network by airflow, thereby forming a fiber network of the above-mentioned mixed fibers.

[0026] The fiber web obtained above is subjected to four passes of needling through a needling machine, and the needling is 13,500 pricks / m2; The hot roller performs hot calendering on the fiber web to produce a high-quality hemp fiber non-woven fabric with good hand feeling.

Embodiment 3

[0028] Get the jute fiber that mass percent is 30%, 35% bonding fiber low melting point composite fiber (ES) and the viscose fiber of 35%, the jute fiber is opened once (after testing, the average length of hemp fiber reduces 36%) , the above-mentioned bonding fiber and viscose fiber are opened four times, and the above-mentioned flax fiber, bonding fiber and viscose fiber after opening are mixed; the above-mentioned mixed fiber is carded into a net through a carding machine, thereby forming A fiber web of the aforementioned mixed fibers.

[0029] The fiber web obtained above is subjected to seven passes of needling through a needling machine, and the needling is 14,500 punches / meter square; The rollers perform hot calendering on the fiber web to produce high-quality hemp fiber non-woven fabrics with good hand feeling.

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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Abstract

The invention discloses a production method of a fibrilia non-woven fabric and comprises following steps: (1) opening and mixing: the fibrilia is opened once, bonding fiber and other fibers are opened for two or more times, and the opened fibrilia, bonding fiber and other fibers are mixed; (2) the mixed fibers are processed into a meshwork; (3) prickling shaping: the fiber meshwork that is obtained from step (2) is prickled by a needle machine; (4) hot rolling shaping: the fiber meshwork that is obtained after the prickling is transmitted onto a roll squeezer to be rolled, and the hot rolling shaping is implemented. The production method of the fibrilia non-woven fabric is simple, and the opening times of the fibrilia is limited, thus avoiding fibrilia break that is caused by a plurality of opening times, and consequently ensuring the length of the fibers and being convenient for the production of the non-woven fabric; simultaneously the opening of other fibers excluding the fibrilia is implemented for two or more times, thus ensuring full opening of the fibers and being convenient for the production of the non-woven fabric.

Description

technical field [0001] The invention relates to the technical field of non-woven fabrics, in particular to a non-woven fabric containing hemp fibers. Background technique [0002] Non-woven fabrics are fabrics made by bonding directional fiber webs or random fiber webs with adhesives. For example, the non-woven fabric disclosed in British Patent GB1195233A is to immerse its non-woven fiber web in the adhesive, and realize the bonding between the non-woven fibers through the cohesive force of the adhesive. With the development of technology, the extension of the concept of non-woven fabrics has been expanded. It is not limited to the use of adhesives to bond the fiber web mentioned in the above definition, but it can also be extended to use the friction between fibers. , or self-adhesive force, or the adhesive force of an external adhesive, or two or more of the above-mentioned forces, so that the fiber web is bonded to form a cloth. [0003] At present, commonly used non-w...

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 Applications(China)
IPC IPC(8): D04H1/48D04H1/425D04H1/4382D04H1/542
Inventor 刘国忠高银根
Owner SUZHOU MOWEI NATURAL FIBER MATERIAL
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