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Nonwoven laminate with cross directional stretch

A laminated, horizontal technology, applied in the field of non-woven fabrics, can solve the problems of fabric damage, capital investment increase, maintenance cost increase, etc.

Inactive Publication Date: 2003-01-15
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While it may seem like a small thing, repeated turning of a nonwoven fabric such as a gown during processing can result in damage to the fabric, increased maintenance costs, and of course an increase in the capital investment of the original purchase of processing line equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] definition

[0008] As used herein, the term "nonwoven fabric or web" refers to a web that has an intertwined structure of individual fibers or filaments rather than an identifiable or regularly repeating pattern as in knitted fabrics. way of structure. Nonwovens or webs have traditionally been formed by a variety of methods, such as meltblowing, spunbonding, and bonded carded webs. The basis weight of nonwovens is usually expressed in ounces of material per square yard (osy) or grams per square meter (gsm), and the fiber diameters used are usually expressed in microns. (Note: To convert from osy to gsm, multiply 33.91 by the value expressed in osy).

[0009] As used herein, the term "microfibers" means fine diameter fibers having an average diameter of not greater than about 50 microns, such as from about 0.5 microns to about 50 microns in average diameter, or in particular, microfibers having an average diameter of about 2 microns ~ about 40 microns. For example, ...

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Abstract

There is provided a nonwoven fabric laminate having cross-directional stretch properties. The laminate is comprised of at least three layers. The outer layers are spunbond nonwoven fiber webs which are made of crimped or crimpable fibers. The inner layer is an elastomeric polymer layer which may itself be composed of one or more thinner layers. The layers are preferably produced by sequentially depositing them onto a moving forming wire and bonding them together by a method excluding hydroentanglement to form the laminate.

Description

Background of the invention [0001] The invention relates to the field of nonwoven fabrics used in medical products, personal care products, clothing and outdoor fabrics. [0002] The manufacturing process of many products made from nonwovens can be a very complex affair involving many different cutting and joining steps. For example, making a surgical gown from a nonwoven fabric involves digging out the armholes and neckline from a large piece of material, cutting out the sleeve material, and then joining the sleeves, which usually consist of two pieces, to each other and joining them to the body of the gown. stand up. Some gowns also have reinforcements (eg elbows) for which additional panels must be cut, placed and joined. Buttonholes or other means of fastening or closing may also be required on the sleeves, back and front of the gown. Such a manufacturing process requires multiple turning, turning, folding, etc. of various pieces of cloth. [0003] One of the propertie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B5/04B32B5/24D04H13/00
CPCD04H13/007D04H13/006Y10S428/903B32B5/04B32B5/24D04H1/492D04H1/498D04H1/52D04H1/56D04H3/14Y10T428/24826Y10T428/2929Y10T428/2931Y10T442/629Y10T442/637Y10T442/641Y10T442/651Y10T442/663B32B5/18B32B5/245B32B7/12B32B27/065B32B27/08B32B27/12B32B27/306B32B27/34B32B27/36B32B27/40B32B2262/14B32B2331/04B32B2367/00B32B2375/00B32B2377/00B32B2535/00B32B2555/02
Inventor S·E·肖韦尔L·W·科利尔四世P·W·埃斯特伊
Owner KIMBERLY-CLARK WORLDWIDE INC