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Absorbent articles comprising stretch laminates

A technology for absorbent products and absorbent cores, which is applied in absorbent pads, medical science, bandages, etc., and can solve the problems of expensive and complicated processing and manufacturing.

Inactive Publication Date: 2015-12-23
PROCTER & GAMBLE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The complications introduced by the stretch laminate are extremely difficult and expensive to manufacture

Method used

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  • Absorbent articles comprising stretch laminates
  • Absorbent articles comprising stretch laminates
  • Absorbent articles comprising stretch laminates

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0138] Example 1: A 40 μm unactivated film KC6282.810 from Mondi GmbH, Gronau was used as adherend. The films are made from elastic polyolefin resins using a blown film extrusion process. It is a three-layer film with an elastic polyolefin film in the core and skins on each side made of plastic polyolefin. The film was bonded to the PET film using double sided tape. T-peeled samples were generated using H2861 glue, and PET as described above.

example 2

[0139] Example 2: The film used in Example 1 was preactivated using the incremental stretching process described in the following patents: US5143679, US5156793 and US5167897 to Weber et al. It was preactivated using 0.150" pitch rolls in the cross direction with a 6mm "depth of engagement". This created wrinkles in the membrane skin as described and shown herein. The preactivated membrane was used as the adherend to produce as A "T-peeled" sample as described in the method above. Mount the sample in such a way that it is peeled in the machine direction (ie, parallel to the line of activation).

[0140] These two samples (ie, Examples 1 and 2) were "T-peeled" as described above. When peeled off, the adhesive applied on the adherend is completely released from it and transferred to the adherend PET. This is true for both samples. This indicates that the "T-peel" force is indicative of bond failure between the adhesive and adherend, and not between the adhesive and adherend PET...

example 3

[0146] Example 3: Styrenic block copolymer resin 21J (412-10225) from Kuraray was extruded using a Berstorff extruder ZE25 to make a film. The compounded elastomeric mixture was formed into a film shape using a 25.4 cm wide coat hanger shaped cast film die and a film take-off unit was positioned to receive the extrudate, which was collected on a double sided silicone coated on a non-stick release paper and wound on a cardboard roll. To generate the data herein, monolayer films were extruded at ~450 degrees Fahrenheit at ~35 gsm at very low speed (~10 ft / min). The film was collected from the 254mm cast film die and the middle 127mm was used for sample preparation.

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PUM

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Abstract

An absorbent article includes a chassis comprising a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet, and at least one elastically elongatable panel joined to the chassis. The elastically elongatable panel includes a stretch laminate that has at least one cover layer and a pre-activated elastomeric film attached to the cover layer, the elastomeric film having two surfaces and a skin on at least one of the surfaces. The skin has a plurality of wrinkles, the wrinkles have hills, and an ink is disposed on at least some of the hills.

Description

technical field [0001] The present disclosure generally relates to stretch laminates and absorbent articles, such as diapers, pants, and the like, made using such stretch laminates. Background technique [0002] Disposable absorbent articles such as diapers are designed to contain bodily waste and prevent soiling of the wearer's clothing and / or other items (eg, beds, chairs, blankets, etc.). The fit of the article to the body of the wearer is important in ensuring that these exudates are contained. Such articles are also designed to be cost-effective, and thus manufacturers generally make these articles for individuals with a wide range of body sizes. Accordingly, there is a continuing interest in new and improved disposable absorbent articles that both conform to a wide range of body shapes and fit snugly to the user to contain discharges and limit leakage. [0003] One way manufacturers are trying to balance the conflicting interests of proper fit and body shape changes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/49
CPCA61F13/49015A61F13/4902A61F13/49019A61L15/24
Inventor M·舍恩贝克H·索曼D·霍莫勒G·包多夫U·P·达拉尔M·A·赫瑞拉E·L·洛克L·A·索尔J·T·巴德
Owner PROCTER & GAMBLE CO