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Preparation method of high-strength melt-down non-woven fabric

A melt-blown non-woven fabric, high-strength technology, applied in non-woven fabrics, textiles and papermaking, etc., can solve the problem of low non-woven fabric strength, achieve excellent mechanical properties, improve mechanical properties, and high production efficiency.

Inactive Publication Date: 2018-04-20
MAANSHAN CITY XIN CHENG NANO NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, non-woven fabrics are prepared by meltblown method, which has the disadvantage of low strength of non-woven fabrics.

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

[0014] A preparation method for high-strength melt-blown non-woven fabrics, comprising the following steps:

[0015] (1) In parts by weight, 38 parts of polybutylene terephthalate, 24 parts of polycaprolactam powder, 2 parts of sodium molybdate dihydrate, 1 part of N-octyldiaminoethylglycine hydrochloride, After 2 parts of isopropyl titanate tristearate are mixed evenly, they are added to a screw extruder, melted and extruded to obtain a functional masterbatch;

[0016] (2) The functional masterbatch prepared in step (1) is melt-blown and spun by a screw extruder to obtain a non-woven fabric. During the melt-blown process, the air pressure is 0.3MPa, the receiving distance is 11cm, and the speed of the metering pump is 66Hz.

[0017] Specifically, in the above step (1), before feeding, the mixture is mixed and heated to 100° C., and after heat preservation treatment for 35 minutes, the dried mixture is added into the screw extruder.

[0018] Specifically, in the above step (...

Embodiment 2

[0021] A preparation method for high-strength melt-blown non-woven fabrics, comprising the following steps:

[0022] (1) In parts by weight, 40 parts of polybutylene terephthalate, 26 parts of polycaprolactam powder, 3 parts of sodium molybdate dihydrate, 1 part of N-octyldiaminoethylglycine hydrochloride, After 3 parts of isopropyl titanate tristearate were mixed evenly, they were added to a screw extruder, and melted and extruded to obtain a functional masterbatch;

[0023] (2) The functional masterbatch prepared in step (1) is melt-blown and spun by a screw extruder to obtain a non-woven fabric. During the melt-blown process, the air pressure is 0.4 MPa, the receiving distance is 13 cm, and the speed of the metering pump is 70Hz.

[0024] Specifically, in the above step (1), before feeding, the mixture is mixed and heated to 100° C., and after heat preservation treatment for 35 minutes, the dried mixture is added into the screw extruder.

[0025] Specifically, in the abov...

Embodiment 3

[0028] A preparation method for high-strength melt-blown non-woven fabrics, comprising the following steps:

[0029] (1) In parts by weight, 44 parts of polybutylene terephthalate, 29 parts of polycaprolactam powder, 4 parts of sodium molybdate dihydrate, 2 parts of N-octyldiaminoethylglycine hydrochloride, After 5 parts of isopropyl titanate tristearate were mixed evenly, it was added to a screw extruder, and melted and extruded to obtain a functional masterbatch;

[0030] (2) The functional masterbatch prepared in step (1) is melt-blown and spun by a screw extruder to obtain a non-woven fabric. During the melt-blown process, the air pressure is 0.5MPa, the receiving distance is 15cm, and the speed of the metering pump is 75Hz.

[0031] Specifically, in the above step (1), before feeding, the mixture is mixed and heated to 100° C., and after heat preservation treatment for 35 minutes, the dried mixture is added into the screw extruder.

[0032] Specifically, in the above st...

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 discloses a preparation method of a high-strength melt-down non-woven fabric. The preparation method of the high-strength melt-down non-woven fabric comprises the following operating steps of (1) uniformly mixing and feeding polybutylene terephthalate, polycarprolactam, sodium molybdate dehydrate, N-octyl diaminoethyl glycine hydrochloride and titanium isopropoxide tristearate into ascrew extruder for melt extrusion to obtain functional masterbatch; (2) melt-down-spinning the functional masterbatch obtained in the step (1) through the screw extruder to obtain the non-woven fabric, wherein, during melt-down spinning, the air pressure is 0.3-0.5 MPa, the receiving distance is 11-15 cm, and the rotating speed of a measuring pump is 66-75 Hz. According to the technical scheme, the preparation method of the high-strength melt-down non-woven fabric is simple and stable in process and high in production efficiency; the prepared high-strength melt-down non-woven fabric is excellent in anti-corrosion and antioxidant property, and particularly high in mechanical property and strength.

Description

technical field [0001] The invention belongs to the technical field of non-woven fabric preparation, and in particular relates to a preparation method of high-strength melted non-woven fabric. Background technique [0002] Non-woven fabrics are made of oriented or random fibers. It is called cloth because of its appearance and certain properties. Non-woven fabrics have the characteristics of moisture-proof, breathable, flexible, light weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low in price, and recyclable. For example, polypropylene pellets are mostly used as raw materials. It is produced by continuous one-step process of melting, spinning, laying, hot-pressing and coiling. The melt-spraying method originated in the 1950s. It is an important method for preparing ultra-fine fibers by using the drafting effect of high-temperature and high-speed hot air. The dried polymer slices are fed into the screw extruder, and after being he...

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): D04H3/011D04H3/16
CPCD04H3/011D04H3/16
Inventor 程晓林
Owner MAANSHAN CITY XIN CHENG NANO NEW MATERIAL TECH CO LTD
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