Novel thermochromic and/or photochromic compositions are described. The thermochromic compositions include a thermoset resin, cholesterol, water, and dye, while photochromic compositions include a benzene and a binder, such as silica gel. When mixed, the ingredients of the thermochromic and photochromic compositions form chromic cells with an outer shell comprised of either the thermoset resin (in the case of thermochromic compositions) or potassium nitrate (in the case of photochromic compositions). When the chromic compositions are exposed to either a heat or light stimulus, the chromic cells compress to causing the dye within the cells to no longer be visible, thereby creating a color-changing effect.
Cholesteric liquid composition and color-forming liquid crystal composite products
申请人:SHINKO ELECTRIC WORKS CO., LTD.
公开号:EP0404639B1
公开(公告)日:1995-08-30
Color Changing Ink Jet Ink With Tunable Transition Stimuli
申请人:Xerox Corporation
公开号:US20200199392A1
公开(公告)日:2020-06-25
A composition including a molecule comprising (1) a diacetylene moiety or diacetylene precursor; and (2) an alkyl additive; water; an optional co-solvent; an optional surfactant; an optional stabilizer; wherein the composition has the characteristic of color change after application of a stimulus. A process for preparing the composition. A process for preparing a product by printing the composition.