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Optically transparent wet nonwoven cellulose fiber fabric

A technology of cellulose fibers and non-woven fabrics, which is applied in the field of products or composite materials, devices for manufacturing cellulose fiber non-woven fabrics, and can solve problems such as the application of synthetic polymer technology

Active Publication Date: 2020-01-03
LENZING AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can be thought of as the cellulose version of the meltblown and spunbond technologies widely used in the synthetic fiber industry, however, it is not possible to make the synthetic polymer technology directly applicable to Lyocell due to significant technical differences

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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  • Optically transparent wet nonwoven cellulose fiber fabric
  • Optically transparent wet nonwoven cellulose fiber fabric
  • Optically transparent wet nonwoven cellulose fiber fabric

Examples

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Embodiment Construction

[0023] In the following, other exemplary embodiments of a cellulose fiber nonwoven fabric, a method of manufacturing a cellulose fiber nonwoven fabric, a device, a product or a composite material for manufacturing a cellulose fiber nonwoven fabric, and a method of use are described.

[0024] In one embodiment, a plurality of jets may be used to form multiple layers of the fabric, which may be arranged in series along the conveying direction of the fabric, for example. Each injector can form each of the multiple layers. However, alternatively, for example, only the first layer of the fabric may be formed first. Subsequently, the layer can be transported again along the fiber transport unit, and the same ejector can be used to form a second layer on the first layer. This process can be repeated as many times as needed. In the latter embodiment, a single ejector in the device may be sufficient.

[0025] In one embodiment, when the fabric is dry (ie, the fibers and the gaps between ...

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Abstract

The present invention discloses a nonwoven cellulose fiber fabric (102), in particular directly manufactured from lyocell spinning solution (104), wherein the fabric (102) comprises a network of substantially endless fibers (108), wherein different ones of the fibers (108) are located at least partially in different distinguishable interconnected layers (200, 202), and wherein the fabric (102) isoptically transparent when wet.

Description

Technical field [0001] The present invention relates to a cellulose fiber nonwoven fabric, a method for manufacturing a cellulose fiber nonwoven fabric, a device, a product or a composite material for manufacturing a cellulose fiber nonwoven fabric, and a method of use. Background technique [0002] Lyocell technology involves the direct dissolution of cellulose wood pulp or other cellulose-based raw materials in polar solvents (for example, N-methylmorpholine N-oxide, which can also be expressed as "amine oxide" or " AO") to produce viscous, high shear thinning solutions that can be converted into a range of useful cellulose-based materials. Commercially, this technology is used to produce a series of cellulosic staple fibers widely used in the textile industry (commercially available from Lenzing AG, Lenzing, Austria, trademark ). Other cellulose products from Lyocell technology are also used. [0003] Cellulosic staple fibers have long been used as a component for conversion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/013B32B5/26
CPCB32B5/26D04H3/013B32B2307/706B32B2307/304B32B2307/546B32B2590/00B32B2405/00B32B2250/03B32B5/06B32B2307/422B32B2307/102B32B2250/02B32B2307/50B32B2439/70B32B2471/02B32B2471/04B32B2307/538B32B2307/414B32B2307/732B32B2307/7163B32B2413/00B32B2479/00B32B2433/02B32B2437/02B32B2260/023B32B2437/00B32B2307/412B32B27/32B32B2607/02B32B2307/41B32B27/36B32B2307/728B32B7/022B32B2307/726B32B7/12B32B2451/00B32B2262/02B32B2264/108B32B2262/04B32B2307/3065B32B2432/00B32B2307/7145B32B7/08B32B2262/067B32B2307/202B32B2307/75B32B2535/00B32B2262/062B32B2307/73B32B2250/20B32B2255/02B32B7/02B32B2555/02B32B2605/003B32B7/03B32B2555/00B32B7/06B32B2419/00B32B2262/14B32B2419/06B32B2419/04B32B5/022B32B2307/718B32B2605/08B32B2410/00B32B2601/00B32B2439/06B32B2307/4026B32B27/12B32B2605/00B32B2307/21D04H3/03D04H3/105D04H3/11D04H3/14A61M35/006B08B1/006
Inventor 汤姆·卡莱尔米尔科·恩泽曼吉塞拉·哥德哈姆M·约翰·海赫斯特凯瑟琳娜·迈尔易卜拉欣·萨格雷-福瑞克
Owner LENZING AG
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