Patent ID: 9475952
Filing Date: 2016-10-25
CPC Classification: A47L,C09D,C11D,D06P,G01N,Y10T

Claim Text:
1. A reversible color-changing polymeric article, comprising: a polymeric material selected from the group consisting of polyester, polypropylene, high density polyethylene, linear low density polyethylene, polyamides, polytetrafluoroethylene, and combinations thereof; and a dried reversible color-changing ink formulation durably bound to the polymeric material and including at least a reversible color-changing dye and a polymer binder that is not an acrylic polymer binder; wherein the dried reversible color-changing ink formulation enables the polymeric article to repeatedly change back and forth between a first color and a second color at a pH between about 5.5 and about 8.0 during repeated cycles of use of the polymeric article with a quaternary ammonium sanitizer solution, without separating the reversible color-changing ink formulation from the polymeric material.