Pressure measuring material
AssigneeFUJIFILM Corporation
InventorsMasahiro Hatta, Hiroshi Kawakami
Life of this patent
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Abstract
Provided is a pressure measuring material having a substrate and a pressure-sensitive layer, wherein the pressure-sensitive layer contains a polymer matrix containing a polymer compound having a molecular weight of 1,000 or more, and microcapsules encapsulating an electron-donating dye precursor and a solvent, and an electron-accepting compound. The pressure-sensitive layer has a color development-inducing layer having the electron-accepting compound and the polymer matrix and a color-developing layer having the microcapsules. A thickness of the color-developing layer is equal to or less than ½ of a thickness of the color development-inducing layer.
Claims14
A pressure measuring material comprising:
- a substrate;
- and
- a pressure-sensitive layer,
- wherein the pressure-sensitive layer contains a polymer matrix containing a polymer compound having a molecular weight of 1,000 or more, microcapsules encapsulating an electron-donating dye precursor and a solvent, and an electron-accepting compound,
- wherein the pressure-sensitive layer has a color development-inducing layer having the electron-accepting compound and the polymer matrix and a color-developing layer having the microcapsules, and
- a thickness of the color-developing layer is equal to or less than ½ of a thickness of the color development-inducing layer.
Dependencies are inferred from the claim text.