Drapeable sanitary absorbent napkin

a technology of absorbent napkins and cloths, which is applied in the field of sanitary absorbent articles, can solve the problems of insufficient protection, inconvenient use, and wearer discomfort, and achieves the effects of reducing the risk of infection, inadequate protection, and not measuring the overall

Inactive Publication Date: 2010-03-18
ROSENFELD LEONARD G +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution results in sanitary napkins that are thin, flexible, and drapeable, providing enhanced comfort and protection by conforming to the body's shape, while maintaining effective absorbency and fluid handling properties.

Problems solved by technology

However a “flexible” definition of the type provided in the '264 patent does not measure the overall “drapeable” characteristics of an absorbent article.
In contrast, if an absorbent article is not sufficiently drapeable the wearer may experience discomfort and be conscious of the absorbent article.
Additionally, if such article bunches or deforms, there is a tendency to maintain its resulting shape, thereby providing inadequate protection.

Method used

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  • Drapeable sanitary absorbent napkin
  • Drapeable sanitary absorbent napkin
  • Drapeable sanitary absorbent napkin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019]Preferred embodiments of the present invention comprise absorbent articles, and in particular sanitary napkins, that are thin, flexible, drapeable and possess absorbency attributes required of sanitary napkins.

[0020]According to the present invention it has been found that a sanitary napkin that is drapeable, and possesses the absorbency attributes required of sanitary napkins, will satisfy one of the following equations:

[0021]AI>3.3−1.2 ln(BW / MCB), where BW / MCB≦6.8; and

AI>1, where BW / MCB>6.8.

[0022]In the above equation, the identified variables have the following meanings:[0023]MCB=Modified Circular Bend Stiffness;[0024]BW=Basis Weight of the Article; and[0025]AI=Absorbency Index (as defined below).

The methods for calculating the above variables for a given absorbent article are described in greater detail below.

Test Procedure

[0026]To test an absorbent article according to the test method set forth herein a minimum of six samples are required. For each of the tests conducted ...

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Abstract

An absorbent article including a cover layer, a barrier layer and an absorbent layer arranged between the cover layer and the barrier layer, the absorbent article being drapeable and possessing the absorbency attributes required of a sanitary napkin.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a divisional application of U.S. patent application Ser. No. 11 / 170,336 filed on Jun. 29, 2005, priority of which is hereby claimed, which is a continuation-in-part application of U.S. patent application Ser. No. 10 / 943,176, filed on Sep. 16, 2004, priority of which is hereby claimed.FIELD OF THE INVENTION[0002]The present invention generally relates to sanitary absorbent articles and in particular to feminine sanitary absorbent napkins that are thin, highly absorbent and drapeable.BACKGROUND OF THE INVENTION[0003]Externally worn, sanitary absorbent napkins are one of many kinds of feminine protection devices currently available. The development of materials having a high liquid absorption capacity per unit volume has allowed the required overall thickness of sanitary napkins to be reduced, thereby providing a product which is more comfortable and less obtrusive to wear. Thin, flexible, sanitary napkins of this ...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): A61F13/15A61F13/45
CPCA61F13/472A61F13/15203Y10T442/335Y10T442/3528
InventorROSENFELD, LEONARD G.WYSOCKI, THERESAYANG, MORRISNIKITINA, MARINAPOCCIA, JOHN
OwnerROSENFELD LEONARD G