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Method and apparatus for manufacturing elasticated webs comprising discontinuous elastic threads

An elastic thread and elastic web technology, applied in the field of manufacturing elastic webs, can solve the problems of core deformation, liquid dredging and wrinkles, etc.

Active Publication Date: 2014-07-23
ESSITY HYGIENE & HEALTH AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, elastic elements positioned across the absorbent core can cause the core to deform
This in turn leads to problems with appearance (due to bunching) and liquid handling (due to undesired compression of the absorbent core leading to liquid channeling creases)

Method used

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  • Method and apparatus for manufacturing elasticated webs comprising discontinuous elastic threads
  • Method and apparatus for manufacturing elasticated webs comprising discontinuous elastic threads
  • Method and apparatus for manufacturing elasticated webs comprising discontinuous elastic threads

Examples

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Embodiment Construction

[0129] according to figure 1 As shown, the present invention provides a method for making an elastic web 140 having discontinuous elastic strands 510,511. The elastic web 140 comprises a laminate of a first web 200 and a second web 300 with discontinuous elastic strands 510 sandwiched therebetween. A third web 700 is laminated on a different portion of the second web 300 with the discontinuous elastic strands 511 sandwiched between said third web 700 and the second web 300 .

[0130] providing a first web 200 having a main extent in the machine direction or machine direction (MD) (machine direction), a first surface 201 and a second surface 202 and a first edge 203 and a second edge 204, The first and second edges 203, 204 extend in the machine direction or machine direction (MD). The first edge 203 and the second edge 204 of the first web 200 are typically straight and parallel to each other. The first web 200 is conveyed substantially continuously in the machine direction...

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PUM

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Abstract

The present invention provides methods for making elastic webs comprising discontinuous elastic strands, and methods for making articles from such elastic webs. Apparatus for carrying out the methods of the invention are also provided. The present invention also relates to elastic webs and articles that may be manufactured using the methods of the present invention.

Description

technical field [0001] The present invention relates to a method for making elastic webs. The invention also relates to an apparatus for forming said elastic web. The invention also relates to a method of manufacturing an absorbent article. The invention also provides elastic webs and absorbent articles that can be manufactured using the methods of the invention. Background technique [0002] Absorbent articles such as diapers or incontinence guards are articles that are worn next to the body and are used to confine and absorb bodily fluids such as urine, blood, feces and sweat. These absorbent articles are usually equipped with elastic elements (generally in the form of one or more elastic threads). For manufacturing efficiency and economy, the elastic elements are located in selected areas of the article, such as leg openings, waist openings, standing gathers, and the like. Elastic elements serve several functions - in particular they help to hold the item in place on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/49B32B38/18B65H51/18A61F13/494A61F13/496B32B37/22
CPCA61F13/49017A61F13/15723A61F13/15739Y10T156/108Y10T156/1317Y10T156/1015A61F13/4902A61F13/15804Y10T156/125A61F13/15609A61F13/15601A61F13/496
Inventor L·贝克
Owner ESSITY HYGIENE & HEALTH AB