Layered absorbent structure with zoned basis weight

A basis weight, basic layer technology, applied in the direction of layered products, absorbent pads, medical science, etc., can solve the problem that the moisture-absorbing core is not enough to achieve performance goals, and achieve rapid acquisition and absorption of liquid, increased absorption rate, and low bulk density Effect

Inactive Publication Date: 2001-01-24
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Absorbent cores of current absorbent articles are insufficient to meet current performance goals

Method used

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  • Layered absorbent structure with zoned basis weight
  • Layered absorbent structure with zoned basis weight
  • Layered absorbent structure with zoned basis weight

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0356] The bodyside layer had a basis weight of 500 gsm and comprised 50% 53C superabsorbent, a superabsorbent commercially available from Dow Chemical, and 50% HPF2 mercerized pulp, a material commercially available from Buckeye Corp. The tau value for Dow 53C superabsorbent is 8.5 minutes; the capacity for FAULZ is 33 g / g; and the 0.3 psiMAUL value is 26.2 g / g. like image 3 and 3A As shown, the bodyside layer extends over the area of ​​the 48 layer region and is densified to 0.2 g / cc.

[0357] The outer layer in the area covered by the bodyside layer 48 has a basis weight of 200 gsm and the remaining area has a basis weight of 500 gsm, the total area covering the entire pad-shaped area (area of ​​layer area 50). This material consisted of 25% SXM880 superabsorbent, a superabsorbent available from Stockhausen, and 75% CR-1654 fluff pulp available from Alliance Forest Products, a company located in Coosa Pines, Al. SXM 880 superabsorbent has a tau value of 4 minutes; FAULZ...

example 2

[0361] The bodyside layer had a basis weight of 336 gsm and was comprised of 75% 53C superabsorbent, a superabsorbent available from Dow Chemical, and 25% HPF2 mercerized pulp, a material available from Buckeye Corp. The tau value for Dow 53C superabsorbent is 8.5 minutes; the capacity for FAULZ is 33 g / g; and the 0.3 psiMAUL value is 26.2 g / g. like image 3 and 3A As shown, the bodyside layer extends over the area of ​​the 48 layer region and is densified to 0.2 g / cc.

[0362] The outer layer has a basis weight of 300 gsm in the area covered by the bodyside layer 48 and a basis weight of 342 gsm in the remaining area which covers the entire pad-shaped area (area of ​​layer 50). This material is comprised of 20% SXM 880 superabsorbent, a superabsorbent available from Stockhausen, and 80% CR-1654 fluff pulp, available from Coosa Pines, Al-Alliance Forest Products. SXM 880 Superabsorbent The τ value of the hygroscopic agent is 4 minutes; the FAULZ capacity is 388 / g; the 0.3 p...

example 3

[0365] The bodyside layer had a basis weight of 502 gsm and comprised 60% 53C superabsorbent, a superabsorbent available from Dow Chemical, and 40% HPF2 mercerized pulp, a material available from Buckeye Corp. The tau value for Dow 53C superabsorbent is 8.5 minutes; the capacity for FAULZ is 33 g / g; and the 0.3 psiMAUL value is 26.2 g / g. like image 3 and 3A As shown, the bodyside layer extends over the area of ​​the 48 layer region and is densified to 0.2 g / cc.

[0366] The outer layer has a basis weight of 200 gsm in the area covered by the bodyside layer 48 and a basis weight of 435 gsm in the remaining area which covers the entire pad-shaped area (the area of ​​layer area 50). This material was composed of 25% SXM880 superabsorbent, a superabsorbent available from Stockhausen, and 75% CR-1654 fluff pulp, available from Alliance Forest Products, a company located in Coosa Pines, Al. SXM 880 superabsorbent has a tau value of 4 minutes; a FAULZ capacity of 38 g / g; and a 0....

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Abstract

A distinctive absorbent article includes an absorbent core having multiple absorbent layers, wherein the absorbent layers interact in such a manner which preferentially locates absorbed liquid in an appointed, high saturation wicking layer. The localization of the liquid within this wicking layer increases the potential of this layer to move liquid through capillary action due to the higher saturation level and increased amount of liquid available. In additional aspects, at least one primary layer region can have a non-uniform, selectively zoned basis weight distribution. Particular configurations of the at least one primary layer region can be constructed with a target area of the primary layer region having a basis weight which is less than a basis weight of another non-target portion of the primary layer region.

Description

field of invention [0001] The present invention relates to a layered absorbent structure. More particularly, the present invention relates to a layered composite absorbent structure having individual layers constructed and arranged to selectively cooperate to provide desired performance parameters within the composite layered structure. Background of the invention [0002] Performance goals for disposable absorbent articles, such as baby diapers, include no leakage of the article, a dry feel to the wearer, and comfort over the life of the product. Accordingly, absorbent articles typically include absorbent cores that provide liquid handling and other absorbent functions required to meet product performance objectives. The absorbent core of absorbent articles generally comprises wood pulp fibers with superabsorbent material usually distributed within the absorbent core to enhance the absorbent capacity for liquids. The absorbent core is usually made into an hourglass shape,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F5/44A61F13/53A61F13/15A61F13/49B32B5/14
CPCA61F13/535A61F2013/15422A61F2013/530569A61F13/15203A61F2013/5307A61F2013/15406A61F2013/530744A61F2013/15544
Inventor R·D·埃维雷特T·G·波尔维克R·N·多格二世V·M·格鲁贝李湧S·K·梅利乌斯S·兰加纳坦D·L·詹克章小民S·M·格赖斯基维茨S·B·利特勒B·J·马休斯D·J·麦多瓦尔L·H·肖耶尔K·S·E·常
Owner KIMBERLY-CLARK WORLDWIDE INC
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