Unlock instant, AI-driven research and patent intelligence for your innovation.

Multiple component materials having a color-changing composition

A color-changing composition, multi-component technology, applied in the direction of dressings, non-adhesive dressings, synthetic resin layered products, etc., can solve problems such as can not be used

Active Publication Date: 2012-05-23
KIMBERLY-CLARK WORLDWIDE INC
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the wetness indicating compositions of the '532 patent are capable of changing color in response to a stimulus, they cannot be used in articles that are in liquid form at room temperature

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of Exemplary Color Changing Composition #1:

[0030] The color changing composition comprises a water insoluble film forming polymer, GANTREZ SP-125 polymer (available from International Specialty Products Inc.) in an amount of 50 mg / ml. The composition also comprises a charged surfactant, benzathonium chloride, in an amount of 20 mg / ml; and a charged colorant, bromocresol green, in an amount of 1.5 mg / ml. The composition included a pH adjuster, citric acid in an amount of 7.5 mg / ml. When the components of the color changing composition are mixed together, they are dissolved in the organic solvent isopropanol.

Embodiment 2

[0032] Preparation of Exemplary Color Changing Composition #2:

[0033] The color changing composition comprises a water insoluble film forming polymer, DERMACRYL 79 polymer (available from Akzo Nobel) in an amount of 100 mg / ml. The composition also comprises a charged surfactant, benzethonium chloride, in an amount of 100 mg / ml; and a charged colorant, bromocresol green, in an amount of 10 mg / ml. The composition included a pH adjuster, citric acid in an amount of 35 mg / ml. When the components of the color changing composition are mixed together, they are dissolved in the organic solvent ethanol.

Embodiment 3

[0035] Preparation of Exemplary Multi-Part Material #1:

[0036] Exemplary color shifting composition #1 or exemplary color shifting composition #2 may be used to form multi-part materials. The composition was applied (by sputtering, brushing or die punching) on ​​a polyethylene film and it was air dried (during drying, the organic solvent evaporated). The dried composition forms a film that appears yellow or greenish-yellow. A drop of fluid (water, synthetic urine, or urine) was applied to the multi-part material (ie, the combination of film layers on polyethylene film). A color change from yellow / yellow-green to blue is visible in the coating.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a multiple-component material including a substrate and a film layer on the substrate. The film layer includes a color- changing composition to indicate a change in condition, such as a change in p H. The color-changing composition includes a water-insoluble, film-forming polymer, a charged surfactant, a charged colorant and a pH adjuster.

Description

field of invention [0001] The present invention relates to a multi-component material comprising a substrate and a film layer formed on the substrate. The film layer contains a color-changing composition. The color-changing composition can cause a change in the color of the film when the film is exposed to changes in the physical or chemical environment. For example, the film layer may be on a nonwoven material used as a component of an absorbent article. The color changing composition may include a pH adjusting agent that changes color in response to the presence of urine. Background of the invention [0002] Many products, both consumer and professional, are more effectively used by the end user when they include features indicative of a particular condition or degree of use. Examples of visible indicators are color indicators. A color indicator may indicate the degree of change or use under a particular condition by changing from "colorless" to "colored" (or vice vers...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/20B32B27/08B32B27/12C08J5/18C08J7/043
CPCA61L15/48A61L15/22A61F2013/428C08J7/04C08J7/047A61F13/00051A61F13/00991A61F2013/427A61F13/42A61L15/56A61F2013/422A61F13/15577C08J7/0427C08J7/043B32B27/18B32B27/308
Inventor J·吉尔宋旭东
Owner KIMBERLY-CLARK WORLDWIDE INC