Process for preparing double component spunbonded nonwoven fabrics

A technology of non-woven fabrics and manufacturing methods, applied in non-woven fabrics, textiles and papermaking, fiber processing and other directions, can solve problems such as poor softness and water repellency, hard product feel, and monotonous product varieties, and achieve good water repellency, High tear strength and good softness

Inactive Publication Date: 2005-06-22
SHANGHAI WEAVING SCIENCE RESEARCH INSTITUTE CO LTD
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Problems solved by technology

[0002] The production process of spunbonded nonwovens is already a very mature process, but in the past, the production of spunbonded nonwovens was single-component, and the production equipment was relatively simple, resulting in monotonous product varieties, of which more than 90% It is a thin hot-rolled polypropylene product. In addition, it is mainly some thick needle-punched polyester products and a small amount of thin hot-rolled polyester products. The products produced have a hard hand, poor softness and water repellency

Method used

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  • Process for preparing double component spunbonded nonwoven fabrics
  • Process for preparing double component spunbonded nonwoven fabrics

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, technical scheme of the present invention is described further:

[0022] The manufacture of polyethylene / polypropylene bicomponent spunbond nonwovens is achieved through the following steps:

[0023] (1) Feeding and melting: the raw material slices of the two components of sliced ​​polypropylene and sliced ​​polyethylene are respectively added to feed bins 1 and 2, and are respectively heated and melted in screw extruders 3 and 4 and extruded out of the screw extruder. After entering the respective melt filter devices 5 and 6 to filter and remove impurities, they become polyethylene and polypropylene spinning melts;

[0024] (2) Composite spinning: polyethylene, polypropylene spinning melt enters composite spinning box 7 through pipeline respectively, two metering pumps 11,12, then pass through two melt pipelines 13,14 of equal length, respectively Converged on the spinneret 15 to form a composite filament tow, two spinne...

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Abstract

The invention provides a process for preparing double component spun-bonded nonfabrics, wherein a compound spinning device is employed to prepare composite fabrics, wherein the device comprises two screw-spindle extrusion press, two melt filter, a composite spinning casing, the number of measuring pumps and filament spray board is increased by one times.

Description

technical field [0001] The invention relates to a method for manufacturing nonwoven fabrics in the textile manufacturing industry, in particular to a method for manufacturing two-component spunbond nonwoven fabrics. Background technique [0002] The production process of spunbonded nonwovens is already a very mature process, but in the past, the production of spunbonded nonwovens was single-component, and the production equipment was relatively simple, resulting in monotonous product varieties, of which more than 90% It is a thin hot-rolled polypropylene product. In addition, it is mainly some thick needle-punched polyester products and a small amount of thin hot-rolled polyester products. The products produced have a hard hand, poor softness and water repellency. Contents of the invention [0003] The technical solution of the present invention is to overcome the monotony of spunbonded nonwoven fabrics, the hard hand feeling, the manufacturing method of a two-component sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/30D04H3/147D04H3/16
Inventor 邹荣华何永明
Owner SHANGHAI WEAVING SCIENCE RESEARCH INSTITUTE CO LTD
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