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

[0025]Compared with the background technology, the invention enjoys the following strengths: 1. It enjoys an excellent breaking property; 2. It realizes total degradation of non-woven cloth fiber upon breaking and avoids second environmental pollution; 3. Since the raw materials are pre-treated, the material features are greatly released and non-woven cloth enjoys an excellent formation strength under the dry and humid status; 4. The microneedle spunlace not only promotes mutual entanglement of fiber, but also makes a full use of friction force of slight incision on the viscose surface upon cutting process so that cohesive force is enhanced under dual effect and product with excellent humidity strength is produced without any chemical adhesive or hot melting fiber.

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

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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

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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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