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Spunbond nonwoven fabrics

A non-woven fabric and spun-bonded technology, applied in the field of spun-bonded non-woven fabrics, can solve the problems of increased complexity, increased cost, and reduced capacity of various resins

Active Publication Date: 2014-07-30
DOW GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of bicomponent fibers include the increased cost of purchasing and installing a bicomponent line compared to a single component line, increased complexity of using multiple resins, bonding due to incompatibility of polyethylene and polypropylene Reduced ability to recycle scrap from the fabric, and reduced production capacity

Method used

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  • Spunbond nonwoven fabrics
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  • Spunbond nonwoven fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0061] The following examples illustrate the invention but are not intended to limit the scope of the invention. The examples of the present invention demonstrate that monocomponent fibers comprising ethylene-based polymer compositions facilitate the spinning of fine denier fibers and soft / drapeable spunbond nonwovens while maintaining Maximum highest tensile strength accepted.

[0062] Invention Example Compositions 1-5

[0063] Inventive Example Compositions 1-2 and 4-5 are ethylene prepared as described above by a solution polymerization process in a two-reactor configuration connected in series in the presence of a catalyst system comprising a metal complex of a polyvalent aryloxyether. - Octene copolymer. The properties of the ethylene-octene copolymer compositions of Inventive Example Compositions 1-2 and 4-5 are reported in Table 1.

[0064] Inventive Example Composition 3 is an ethylene-hexene copolymer prepared as described above by a gas phase polymerization pro...

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Abstract

The instant invention provides nonwoven fabrics and staple or binder fibres prepared from an ethylene-based polymer having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.930 to 0. 970 g / cm3, a melt index (I2) in the range of from 15 to 30 or from 10 to 50 g / 10 minutes, a molecular weight distribution (Mw / Mn) in the range of from 2 to 3.5, and a molecular weight distribution (Mz / Mw) in the range of from less than 2.

Description

[0001] Cross References to Related Applications [0002] This application is a non-provisional application claiming the benefit of priority to U.S. Provisional Patent Application No. 61 / 543,425, filed October 5, 2011, entitled "SPUNBOND NONWOVEN FABRICS," the teachings of which are incorporated by reference incorporated herein as if reproduced in its entirety hereinafter. technical field [0003] This application relates to spunbond nonwoven fabrics. Background technique [0004] Spunbond nonwoven articles are widely used in a variety of end-use applications, such as , to provide low basis weight, economical, strong, and cloth-like fabrics. The spunbond nonwoven typically includes monocomponent or bicomponent fibers. Bicomponent fibers include, for example, core / shell, fancake, side-by-side, islands-in-the-sea, and the like. A common bicomponent fiber construction is a core-sheath structure where the core comprises polypropylene homopolymer and the sheath comprises polye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/04B32B5/24D01F8/06
CPCB32B5/24D01F6/04B32B5/022D04H1/4291Y10T428/2929Y10T442/681Y10T442/291Y10T442/637Y10T442/66D01F8/06D04H3/007B32B5/26D04H3/16D04H13/00
Inventor J.A.德格鲁特G.J.克拉森S.本萨松M.德米罗尔斯T.古德蒙德森J.C.布罗迪尔
Owner DOW GLOBAL TECH LLC
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