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Apparatus and methods for forming absorbent pads

A technology for absorbent pads, equipment, applied in the direction of absorbent pads, applications, medical science, etc., can solve the problems of damaged pads, glue spreading, pad perforation, etc.

Active Publication Date: 2022-03-11
GDM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] A disadvantage of this system is that the glue is also spread over the areas where the channels will be formed, so the absorbent material may bond to the sheet in those areas
[0010] Thus, if absorbent material is deposited between the pressure device and the mating part opposed thereto, the compressive action exerted by the pressure device may damage or even perforate the pad

Method used

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  • Apparatus and methods for forming absorbent pads
  • Apparatus and methods for forming absorbent pads
  • Apparatus and methods for forming absorbent pads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] refer to figure 1 , reference 100 denotes a mat obtainable with a forming apparatus made according to the present disclosure.

[0061] A pad 100 in an absorbent sanitary article such as, for example, a diaper for children or adults comprises a first layer 101, a second layer 102 and an absorbent material 103 interposed between the first layer 101 and the The second layer 102 is arranged between and according to the distribution pattern M1.

[0062] The first layer 101 and the second layer 102 are made, for example, of non-woven fabric and are bonded to each other; the absorbent material 103 comprises, for example, cellulose fibers and a superabsorbent material also called SAP, and is fixed between the first layer 101 and the second layer 102. Between the second layer 102 .

[0063] In the example shown, the version M1 and thus the pad 100 has two regions or channels 104, 105 which do not contain absorbent material and where the first layer 101 and

[0064] The second...

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PUM

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Abstract

A method of forming an absorbent pad comprising a first layer, a second layer and an absorbent material interposed between the first layer and the second layer according to at least one An interspersed M1 arrangement of channels, the method comprising the steps of feeding a first web (NW1) intended to form a first layer of a mat; feeding a second web (NW2) intended to form a second layer of a mat; Steps of spreading absorbent material on the first web (NW1) according to spreading type M1; steps of spreading adhesive on the first web (NW1) according to gluing type (M2); welding of the second web (NW1) according to welding type M3 Steps of one and second web (NW1, NW2), welding type M3 comprising at least one welding zone at the channel on the pad.

Description

technical field [0001] The present invention relates to an apparatus and method for forming an absorbent structure, in particular an absorbent pad or "core", as is known in the art, intended to be used such as, for example, children Absorbent hygiene articles such as diapers, sanitary napkins, etc. for adults, the description below refers to diapers without loss of generality. Background technique [0002] As is well known, diapers comprise an absorbent pad or core wrapped usually between a permeable inner layer of nonwoven fabric and an impermeable outer layer, for example made of polyethylene. [0003] Known types of absorbent pads comprise an absorbent core made of absorbent material, such as superfiber in a mixture containing cellulose pulp (fluff) and absorbent material binder, sandwiched between two nonwoven layers, for example. Granules of superabsorbent polymer material (SAP). [0004] In order to improve performance in terms of absorbency, comfort and distribution...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/15A61F13/532
CPCA61F13/5323A61F13/15658A61F13/15699
Inventor M·皮安托尼V·索利M·罗萨尼F·托斯卡尼G·波利
Owner GDM