Method of producing a composite with an absorbent layer

a technology of absorbent layer and composite material, which is applied in the direction of weaving, bandages, transportation and packaging, etc., can solve the problems of minor loss of absorbent material in subsequent further processing of multilayer product, and achieve the effect of preventing material loss arrangemen

Inactive Publication Date: 2007-11-22
FIBERWEB COROVIN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This design effectively seals the absorbent material in place, preventing its escape and ensuring a strong bond between layers, which enhances the product's integrity and reduces material waste during processing.

Problems solved by technology

Due to the design of the bottom layer, this should achieve the result that losses of absorbent material in a subsequent further processing of a multilayer product are minor.

Method used

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  • Method of producing a composite with an absorbent layer
  • Method of producing a composite with an absorbent layer
  • Method of producing a composite with an absorbent layer

Examples

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Embodiment Construction

[0045]FIG. 1 shows a first multilayer product 1 with a first layer 2, an absorbent intermediate layer 3 and a second layer 4. The first layer 2 has a first material 5 and a second material 6. The second layer 4 has a third material 7 and a fourth material 8. The first layer 2 and the second layer 4 are both preferably nonwoven materials. At least one of the two materials 2, 4 may also contain a film and / or a foam. The first material 5 of the first layer 2 contains, for example, a polypropylene. It is preferably produced as a spunbonded nonwoven. The second material 6 is polyethylene, for example. The third material 7 in turn preferably also contains polyethylene, but the fourth material 8 preferably contains polypropylene. The absorbent intermediate layer 3, which contains particles 9, for example, according to this embodiment, is arranged between the first layer 2 and the second layer 4. The particles are preferably held in place in the intermediate layer 3 at least partially by th...

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Abstract

The present invention relates to a multilayer product having at least one first layer, an absorbent intermediate layer and a second layer, whereby at least the first layer contains at least one first material and one second material. The first layer and / or the second layer is at least partially liquid permeable. The first material has a higher melting point than the second material, with the second material creating a bond to the second layer.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a divisional of U.S. application Ser. No. 10 / 501,601, filed Jan. 27, 2005; which is a 37 U.S.C. 371 National Phase filing of PCT International Application No. PCT / EP03 / 00635, filed Jan. 23, 2003; which claims priority from German Application DE2002010205828 filed Feb. 13, 2002, the priority of which applications are claimed.FIELD AND BACKGROUND OF THE INVENTION [0002] The present invention relates to a multilayer product comprising at least one first layer, an absorbent intermediate layer and a second layer. The first layer contains at least one first material and one second material, whereby the first and / or second layer is at least partially liquid-permeable. [0003] World International Patent 95 / 03019 describes the production of a multilayer product, whereby an absorbent material is arranged between a top layer and a bottom layer. The absorbent material is applied as strips, with an adhesive being applied between t...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): B29B9/00A61F13/15B32B5/26D04H13/00
CPCA61F13/15699A61F13/511A61F13/5323A61F13/539B32B5/26Y10T428/24D04H3/02D04H3/147D04H5/06D04H13/00D04H3/007A61F13/51121A61F13/515Y10T442/637Y10T442/659Y10T442/668Y10T442/673
InventorBAUER, JOACHIMROY, INDRA
OwnerFIBERWEB COROVIN GMBH