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Color changing wear indicator

A color, tint technology used in the field of wear indicators to address issues such as when difficult-to-clean articles are no longer optimally discarded

Inactive Publication Date: 2010-12-08
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with reusable articles, and especially semi-disposable reusable articles, it can be difficult for the user to know when the cleaning article is no longer working optimally and should be discarded

Method used

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Examples

Experimental program
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Embodiment Construction

[0015] The present invention relates to articles comprising a color changing wear indicator. In one embodiment, the present invention is directed to a cleaning article comprising a color changing wear indicator. Figure 1-4 One embodiment of a cleaning article 100 including a color changing wear indicator is shown. Specifically, figure 1 for the perspective view, figure 2 for the side view, image 3 is an exploded side view, and Figure 4 A photograph of the cleaning article 100 used.

[0016] The cleaning article 100 includes a substrate 200 having a base coat 300 and a top coat 400 covering the base coat 300 . In this embodiment, the base 200 is rectangular and includes a top surface 210 and a bottom surface 220 opposite to the top surface 210 . Top surface 210 and bottom surface 220 are generally planar. Generally, one or both of top surface 210 and bottom surface 220 are working surfaces intended to come into contact with the surface to be cleaned. In this embodim...

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Abstract

A substrate with a color changing indicator to identify wear of the substrate is disclosed. The color changing indicator generally comprises a substrate having a working surface with a first color and a surface coating comprising a second color, different than the first color, dispersed in a binder. The surface coating covers the first color of the substrate and repeated use of the article wears away the surface coating causing exposure of the first color to indicate wearing of the substrate. Also disclosed, is a method of making an article including a color changing indicator.

Description

technical field [0001] The present invention relates to color changing wear indicators. In particular, the present invention relates to substrates comprising a color changing wear indicator to indicate wear of the substrate. Background technique [0002] Cleaning articles can be disposable or reusable. Generally, disposable articles are used for one cleaning application and discarded. For example, paper towels are disposable products that are used for wiping and then discarded. Reusable articles can be reused in several cleaning applications. Some cleaning articles, such as brooms, are reusable and can be used for a long time. Some cleaning products, such as sponges, are reusable but can be used for a short period of time and therefore can be considered semi-disposable products. [0003] With disposable articles, it is clear to the user to discard the article after use. However, with reusable articles, and especially semi-disposable reusable articles, it can be difficu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47L13/10B32B25/02
CPCA47L13/04A47L13/16Y10T428/24942
Inventor 诺埃米·加尔萨卢·D·希巴德
Owner 3M INNOVATIVE PROPERTIES CO