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Breakable and degradalbe non-woven spunlace and fabrication methods and production line

a non-woven, degradable technology, applied in the direction of absorbent pads, non-woven fabrics, textiles and paper, etc., to achieve excellent formation strength, excellent breaking properties, and avoid second environmental pollution

Inactive Publication Date: 2016-08-04
HANGZHOU NBOND NONWOVENS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent aims to create a non-woven spunlace that is easy to break and degrades completely upon breaking. The raw materials used are pre-treated, which allows for improved material properties and strength. The microneedle spunlace technique promotes strong cohesion without the use of chemical adhesive or hot melting fibers. The result is a product that is strong and durable in humid conditions.

Problems solved by technology

They are closely linked with each other and necessary and irreplaceable-therefore, they constitute an inseparable technical plan.
It is inseparable and irreplaceable and thus constitutes a necessary part of the equipment.

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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  • Breakable and degradalbe non-woven spunlace and fabrication methods and production line
  • Breakable and degradalbe non-woven spunlace and fabrication methods and production line
  • Breakable and degradalbe non-woven spunlace and fabrication methods and production line

Examples

Experimental program
Comparison scheme
Effect test

embodiment 1

[0031] refer to FIGS. 1 and 2. It is a breakable and degradable non-woven spunlace composed of 35-50% zigzagging flat viscose fiber 9 and 65-50% wood pulp. The said zigzagging flat viscose fiber 9 means the deformed viscose fiber 10 upon cutting process. The said zigzagging flat viscose fiber (deformed viscose fiber 10) is 5-20 mm in length. >10 mm and ≦20 mm of the said 35-50% zigzagging flat viscose fiber (deformed viscose fiber 10) takes up 70-80%; ≧5 mm and ≦10 mm of the said 35-50% zigzagging flat viscose fiber (deformed viscose fiber 10) takes up 20-30%. The said wood pulp fiber is 1-5 mm in length. ≧1 mm and ≦3 mm of the said wood pulp fiber takes up 20-30%; >3 mm and ≦5 mm of the said wood pulp fiber takes up 80-70%. The technical index of breakable and degradable non-woven spunlace is as follows:

[0032]Water breakability—It receives sealed pipe swing test for 50 times and is thus broken into total fiber; gram weight: 30-100 gsm; humidity strength (MD): above 400 g / in.; CD: a...

embodiment 1-2

[0035] On the basis of embodiment 1, it is a breakable and degradable non-woven spunlace composed of 50% zigzagging flat viscose fiber 9 and 50% wood pulp. The said zigzagging flat viscose fiber 9 means the deformed viscose fiber 10 upon cutting process. >10 mm and ≦20 mm of the said 35-50% zigzagging flat deformed viscose fiber takes up 70-80%; ≧5 mm and ≧10 mm of the said 35-50% zigzagging flat viscose fiber takes up 20-30%. ≧1 mm and ≦3 mm of 65-50% wood pulp fiber takes up 30%; >3 mm and ≦5 mm of the said wood pulp fiber takes up 70%.

[0036]Embodiment 1-3: On the basis of embodiment 1, it is a breakable and degradable non-woven spunlace composed of 40% zigzagging flat viscose fiber 9 and 60% wood pulp. The said zigzagging flat viscose fiber 9 means the deformed viscose fiber 10 upon cutting process. >10 mm and ≦20 mm of the said 35-50% zigzagging flat deformed viscose takes up 70-80%; ≧5 mm and ≦10 mm of the said 35-50% zigzagging flat deformed viscose takes up 20-30%. ≧1 mm and ...

embodiment 2

[0037] it is a breakable and degradable non-woven spunlace composed of 35-50% zigzagging flat viscose fiber 9 and 65-50% wood pulp. The said zigzagging flat viscose fiber is 5-20 mm in length.

[0038]Embodiment 2-1: On the basis of embodiment 1, it is a breakable and degradable non-woven spunlace composed of 35% zigzagging flat viscose fiber 9 and 65% wood pulp. The said zigzagging flat viscose fiber is 20 mm in length.

[0039]Embodiment 2-2: It is a breakable and degradable non-woven spunlace composed of 50% zigzagging flat viscose fiber 9 and 50% wood pulp. The said zigzagging flat viscose fiber is 5 mm in length.

[0040]Embodiment 2-3: It is a breakable and degradable non-woven spunlace composed of 40% zigzagging flat viscose fiber 9 and 60% wood pulp. The said zigzagging flat viscose fiber is 10 mm in length.

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Abstract

The invention relates to a swiftly breakable and totally degradable non-woven spunlace and its fabrication methods and production line. It is composed of 35-50% zigzagging flat viscose and 65-50% wood pulp. It enjoys the following strengths: excellent breaking performance; total degradation of non-woven fiber upon breaking and avoidance of second environmental protection; great play of material features due to pre-treatment of raw materials and good strength of non-woven cloth under the dry and humid status.

Description

TECHNICAL FIELD[0001]US2013004552A1 is named after “water dispersible non-woven fabric materials”. Non-woven multi-layered fabric materials which include two external layers made of continuous filaments of a water soluble or water dispersible polymer having an internal layer of a water-absorbent, flushable material are provided. The continuous filament of non-woven fabric materials has water content of about less than 10% (weight). Characterized in that: it also includes the dry substance with following composition: household or individual nursing articles; medical substance and / or one or several mini capsules containing slow releasing substance. Characterized in that: The water-absorbent materials include cellulose pulp fiber. Characterized in that: non-woven fabric materials are immersed into the substance with hydrophobic property. It is a derivative of fatty acid in the organic solvent (not water). It includes one upper layer of continuous filaments of a water-soluble or water d...

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(United States)
IPC IPC(8): D04H1/492D04H1/425D04H1/44D04H1/4258D04H1/4326
CPCA61F13/15211D04H1/4258D04H1/492D10B2201/24D04H1/4326D04H1/44D10B2201/01D04H1/425
Inventor GONG, JINRUI
Owner HANGZHOU NBOND NONWOVENS
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