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Zoned application of decolorizing composition for use in absorbent articles

An absorbent, compositional technology in the field of regional application of depigmenting compositions for absorbent articles, able to solve the problem of not being completely successful

Active Publication Date: 2010-08-04
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such attempts have not been entirely successful in eliminating the leakage problem

Method used

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  • Zoned application of decolorizing composition for use in absorbent articles
  • Zoned application of decolorizing composition for use in absorbent articles
  • Zoned application of decolorizing composition for use in absorbent articles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] The ability of the depigmenting composition to remove blood color was demonstrated. With linoleic acid, Surfynol TM A mixture of 465 and water (ratio 1:0.01:1) was coated on a microscope slide and spread out with a glass rod. A drop of blood (human) was placed on each slide and spread using a glass rod. Control slides were prepared by spreading only one drop of blood on them. Place slides in a 37 °C incubator for 1 h. The blood color was completely removed on the experimental slides, while no change in color was observed on the control slides.

Embodiment 2

[0079] The ability of the depigmenting composition to remove blood color was demonstrated. Four female pads were used for the study. Control 1 (C1) had only two drops of human blood placed in the center of the pad. Control 2 (C2) had Surfynol placed in the center of the pad TM A light coat of 465 in water (0.25ml in 0.5ml of water), followed by two drops of human blood. Experimental pad 1 (E1) had a mixture of linoleic acid and surfactant (0.25 ml of surfactant and 0.50 ml of linoleic acid), followed by the addition of two drops of human blood. Experimental pad 2 (E2) had a mixture of linoleic acid and surfactant (0.50 ml of surfactant and 0.50 ml of linoleic acid) applied to the center of the pad, followed by the addition of two drops of human blood. Place the pads in a 37°C incubator and observe. Within minutes, the red blood on pads E1 and E2 turned brown and continued to fade over time. At the end of the experiment, the blood color on the pads E1 and E2 had been compl...

Embodiment 3

[0081] The ability of the depigmenting composition to remove blood color was demonstrated. Studies were performed using 4" x 5" cotton, wrought, polyester, and lightweight Lycra samples on which blood (20 μl) or menses (50 μl) was placed in the center of the fabric sample to simulate a stain Case. To determine the potential efficiency of stain removal, 200 μl of control solution (Surfynol TM 465 surfactant as a 2% w / w solution in water) or 200 μl of a surfactant solution containing linoleic acid as a stain removal active (1:2 ratio of 2% surfactant solution to linolenic acid) On areas soiled with blood or menstruation. The samples were placed in an incubator at 37°C and the color change was observed visually. Clearly the intense menstrual color has been eliminated using proven technology.

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Abstract

An absorbent article that contains a substrate treated with a decolorizing composition that can discharge the color of bodily exudates (e.g., menses, blood, fecal matter, and so forth) is provided. More specifically, a boundary zone located at the periphery of the substrate is treated with the decolorizing composition. Thus, when the substrate is incorporated into an absorbent article, the decolorizing composition may help discharge color at the edges of the article where leakage is most likely to occur. An interior zone of the substrate, however, is left substantially untreated with the decolorizing composition. This enables a user to observe and inspect the bodily exudates for infection or other health related conditions, and also allows the decolorizing composition to be applied only to those portions of the substrate needed to achieve the desired effect so that the untreated zone can continue to fulfill its other functions, such as absorbing or wicking fluids, etc.

Description

Background technique [0001] Feminine care absorbent articles, such as sanitary napkins and pantiliners, generally comprise an absorbent layer surrounded by a body-facing liquid-permeable topsheet and a liquid-impervious backsheet. The top and bottom sheets may extend laterally beyond the absorbent mass and be bonded together to form a peripheral seal around the article. The article is placed in the crotch of the underwear to absorb body exudates. A concern with traditional feminine care absorbent products has been fluid leakage while the product is in use, especially from around the sides of the product. Such leaks can cause consumer embarrassment and an overall loss of confidence in using the product. Various attempts have been made to introduce structures into articles to reduce or prevent leakage, including embossed walls or channels, polymeric or other liquid impermeable barrier walls, and the like. However, such attempts have not been entirely successful in eliminating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/42
CPCA61L15/42A61L15/56A61F13/472A61F13/511
Inventor J·G·麦克唐纳M·K·史密斯
Owner KIMBERLY-CLARK WORLDWIDE INC
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