Patent ID: 11958307
Assignee: FUJIFILM CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B  C  G | IPC B  G

Claim 0:
1. A material for pressure measurement, comprising:
a support that is a plastic film;
a color forming layer that contains microcapsules A, each of which has a capsule wall formed of a resin film and which encapsulates an electron-donating colorless dye precursor; and
an easy-adhesion layer between the support and the color forming layer,
wherein a coefficient of variation of particle size distribution of all particles contained in the color forming layer is 35% to 150%, and
wherein a volume standard median diameter D50X of all particles contained in the color forming layer is larger than 15 μm, and wherein a volume standard median diameter D50A of the microcapsules A satisfy Equation 2:

10 μm<D50A<40 μm  Equation 2.