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US 10,768,119 B2Granted
Applicator, applicator set, degree of cleanliness determination method, and degree of cleanliness determination system
Assignee3M Innovative Properties Company
InventorsShunsuke Takaki, G. Marco Bommarito
Life of this patent
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Abstract
An applicator; an applicator set; a method for determining cleanliness of a surface using the applicator or the applicator set; and a system for determining cleanliness of a surface comprising the applicator or the applicator set. The applicator can include a marker composition and an applicator body capable of retaining the marker composition. The marker composition can include retroreflective particles and a dispersion medium, the blending ratio of the retroreflective particles being from 50 to 90 mass % on the basis of the total marker composition.
Claims15
An applicator comprising:
- a marker composition containing retroreflective particles and a dispersion medium, a blending ratio of the retroreflective particles being from 50 to 90 mass % on the basis of the total marker composition;
- wherein the dispersion medium comprises a water-soluble polymer, and
- an applicator body capable of retaining the marker composition;
- wherein an exposed part of the applicator body is capable of delivering the marker composition to a surface of an application target surface to be cleaned.
1 more element
Dependencies are inferred from the claim text.