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US 5,110,492 AGranted
Cleaner and disinfectant with dye
OwnerIrene Caseyinventor
Life of this patent
Estimating the term…
Abstract
A cleaning composition for surfaces which contains a disappearing dye which can include a germicide. The composition is packaged airtight. The dye is pH sensitive so that upon exposure to air the dye disappears. The delivery of the cleaner gives a visual check as to the surface contacted.
Claims5
A composition for cleaning surfaces comprising:
- at least one surfactant;
- a pH sensitive dye which changes color upon exposure to air;
- an alkali means for adjusting the pH of the composition to an alkali pH to produce a color in the composition so that upon neutralization in the air the dye loses color;
- said composition being a visually colored composition with the disappearing pH sensitive dye effectively indicating the delivery of the composition and giving a visual check as to the area contacted when the visually colored composition is applied;
- and
- said composition packaged in a sealed air tight container adapted to maintain the alkali pH after the pH of the composition is adjusted to produce a color from the pH sensitive dye in the composition.
3 more elements
Dependencies are inferred from the claim text.