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Non-woven textile structure incorporating stabilized filament assemblies and its manufacturing method

A technology for non-woven fabrics and manufacturing methods, which can be used in non-woven fabrics, chemical instruments and methods, fabrics, etc., and can solve problems such as impracticality

Inactive Publication Date: 2006-05-03
福利斯特夫三维技术公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of processing the filament tow to make the final layer is not specified and it is considered impractical to process the filament tow in this manner directly from the baled material

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 textile structure incorporating stabilized filament assemblies and its manufacturing method
  • Non-woven textile structure incorporating stabilized filament assemblies and its manufacturing method
  • Non-woven textile structure incorporating stabilized filament assemblies and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] specific implementation

[0052] Figure 1 schematically illustrates the formation of a prestabilized filament assembly as part of a solution spun cellulose acetate. A solution of cellulose acetate in acetone extrudes filaments (63) from a spinneret system (64) and passes through nip rolls (65), where the acetone remaining in the filaments as they pass through the nip rolls causes them to partially bond, thereby producing into a filament assembly that can be processed, and then processed into a fully stabilized filament assembly. These filaments can be partially embossed with rollers (66) to give them greater integrity, if desired.

[0053] Figure 2 shows parallel filaments (202), partially fused to a solution-spun rayon to complete the initial fixation. Fusion points (201) can be observed which maintain the parallel alignment of the filaments (202) to provide optimal fluid control. The same effect can also be obtained from a cast film or tape of a solution-spun rayon...

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PUM

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Abstract

A plurality of substantially parallel continuous filaments, e.g. of cellulose acetate or rayon, and preferably newly formed, are consolidated or partially stabilized, e.g. by application of solvent and pressure, by hydroentanglement, by embossing, or by crimping and stretching. The filament assembly or subassemblies thus produced are further stabilized by folding, bundling, twisting or intertwining, e.g. to form braids ( 10 ), and are then bonded to a carrier layer or sandwiched between outer layers ( 12, 14 ), e.g. by hydroentanglement, melt blowing, spinbonding etc. The stabilized filament assemblies may be arranged spaced transversely and may be cut just prior to bonding so as also to provide longitudinally spaced three dimensionally thicker regions, ready for conversion to finished products such as absorbant feminine hygiene products or medical swabs or the like.

Description

technical field [0001] This invention relates to nonwoven fabric materials, and more particularly to nonwoven fabric absorbent materials. [0002] The invention is particularly applicable to absorbent textile materials or structures used in the fields of hygiene protection, baby care and adult incontinence protection, but also in or as medical fields such as bandages, swabs and laparotomy tampons. It can also be applied in cases where absorbency is not a critical factor, eg for use as a carrier. These may include matrix materials for the manufacture of tires, conveyance materials, and matrix materials for other industrial and medical uses such as orthopedic fillers. Background technique [0003] Nonwoven fabric materials made in a number of different ways have been used over the years as components in the preparation of absorbent materials for feminine hygiene products, baby diapers and incontinence products. Modern techniques have been employed to facilitate the acquisiti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H13/00D02G1/00D02G3/00B32B5/26D04H3/04D04H3/07D04H3/10D04H3/14D04H3/11
CPCB32B5/26B32B7/04D02G1/00D04H3/04D04H3/07D04H3/11D04H3/14D04H13/00Y10T428/2913Y10T442/643Y10T442/608Y10T442/659B32B2307/73B32B2305/20B32B2262/04B32B38/06B32B2038/0028
Inventor G·M·巴斯E·H·卡勒斯
Owner 福利斯特夫三维技术公司