Flexible, highly absorbent material

a flexible, highly absorbent material technology, applied in the field of multi-layer absorbing structure, can solve the problems of reducing the capacity for absorbing additional liquid, affecting wearing comfort, and affecting wear comfort, so as to avoid such impairments

Inactive Publication Date: 2011-07-28
GLATFELTER FALKENHAGEN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]Thus it is desirable to have a product available which helps to avoid such impairments of wearing comfort during use.

Problems solved by technology

However, such products tend to have considerable deficiencies with respect to wearing comfort.
For known relatively compact liquid storage layers thus the capacity for absorbing additional liquid is substantially reduced which impairs wearing comfort.

Method used

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  • Flexible, highly absorbent material
  • Flexible, highly absorbent material
  • Flexible, highly absorbent material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0145]The absorbing ply structure 1 illustrated in FIG. 1 includes the following layers:[0146]a support layer 2 which includes a tissue and forms the first ply of the ply structure;[0147]a second ply 6 made of cellulose fluff pulp 3, SAP particles 4 and bonding fibers 5, e.g. bi-component fibers;[0148]a third ply 8 made of cellulose pulp 7 and cellulose fluff pulp 3;[0149]a fourth ply 9 made of cellulose pulp 7, preferably SAP particles 4, which, however, can also be omitted, and bonding fibers 5; and[0150]a layer made of a binding material 10, e.g. a latex binder.

[0151]The plies of the ply structure are disposed on top of one another and connected with one another in a subsequent calendering process using heat and pressure. Thus, the outer plies of the structure are compressed more than the center plies. The ply material 1 can also be configured without the support layer 2. The second ply 6 alone or in combination with the support layer 2 assumes the function of a liquid acquisitio...

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Abstract

An absorbing structure has a sequence of layers, including at least first and second outer layers with at least a liquid storage layer disposed therebetween. The layers are disposed on top of one another and form a layered structure. At least the liquid storage layer has a cellulose material, preferably cellulose fibers, and a super absorbing polymer SAP, preferably SAP particles and/or SAP fibers. The liquid storage layer uses at least less binder material than the other liquid storing plies of the absorbing structure. The liquid storing plies are adjacent to the liquid storage layer. Preferably, the liquid storage layer does not have binder material.

Description

BACKGROUND OF THE INVENTION[0001]1. Technical Field[0002]The invention relates to a multilayer absorbing structure including at least one liquid storage layer, preferably with a liquid acquisition layer, a liquid storage layer and a liquid distribution layer using cellulose fibers and a super absorbing polymer. The invention also relates to a method and an apparatus for producing the structure.[0003]2. Description of the Background Art[0004]Multilayer absorbing structures using cellulose and super absorbing polymers abbreviated as SAP, e.g. in the form of SAP particles or SAP fibers have been known for many years and are being used as a layer material in disposable products, e.g. in hygiene products, medical products and industrial products.[0005]Fiber layers with absorbent layer in which binder materials are being used for stabilizing the absorbent layer and for avoiding abrasion of the fibers are known. The layers of such layer material include binder materials, e.g. in the form o...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F13/53A61L15/22B29C63/48B32B5/26
CPCA61F13/15658A61F13/534B32B2555/02A61F13/53743A61L15/28A61L15/60B32B5/26B32B33/00B32B2250/20B32B2255/02B32B2255/26B32B2262/02B32B2262/062B32B2262/12B32B2262/14B32B2264/02B32B2307/726C08L1/02A61F13/15707A61F13/15747A61F13/15764A61F13/5116A61F13/537A61F13/539A61F2013/15821A61F2013/15878A61F2013/530131A61F2013/530481Y10T442/668
Inventor ROTTGER, HENNINGLUTTER, STEFANIEEHMKE, RALF
Owner GLATFELTER FALKENHAGEN GMBH
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