Title:
FRICTION MEMBER AND THERMOCHROMIC WRITING BODY CONTAINING THE SAME
Document Type and Number:
Japanese Patent JP2022101343
Kind Code:
A
Abstract:
To provide a friction member capable of erasing the handwriting of a thermochromic writing body and sufficiently maintaining the appearance of the handwriting of a non-thermochromic writing body when the handwriting of the non-thermochromic writing body is rubbed together with the handwriting of the thermochromic writing body, and a thermochromic writing body including the friction member.SOLUTION: There is provided a friction member that thermally discolors the handwriting formed by the thermochromic writing body by frictional heat. The hardness measured with a type D durometer hardness tester is 55 to 90, and the dynamic friction coefficient is 0.25 to 0.50.SELECTED DRAWING: Figure 1
Inventors:
NABUCHI YUZURU
MASUJU NAOTO
ONO ITSUKA
MASUJU NAOTO
ONO ITSUKA
Application Number:
JP2020215867A
Publication Date:
July 06, 2022
Filing Date:
December 24, 2020
Export Citation:
Assignee:
PILOT CORP
International Classes:
B43L19/00; B43K29/02
Attorney, Agent or Firm:
Yamato Kento