インク、該インクの製造方法、および該インクを用いた温度インジケータ - Hitachi Industrial Equipment Systems Co., Ltd.

Title:

インク、該インクの製造方法、および該インクを用いた温度インジケータ

Document Type and Number:

Japanese Patent JP7297624

Kind Code:

B2

Abstract:

The purpose of the present invention is to provide: a temperature-sensing aqueous ink having excellent stability; a method for producing the temperature-sensing aqueous ink; and a temperature indicator that uses the temperature-sensing aqueous ink. The ink according to the present invention is an ink in which temperature-sensing particles are dispersed in an aqueous dispersion medium and is characterized in that the temperature-sensing particles contain: a temperature-sensing material, which contains a leuco dye, a color developer and a decoloring agent; and a surfactant.

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Inventors:

Okazaki Shoichiro
Shunsuke Mori
Kohei Aida
Shigeki Tsubouchi
Masahiro Kawasaki
Masahiko Ogino

Application Number:

JP2019173988A

Publication Date:

June 26, 2023

Filing Date:

September 25, 2019

Export Citation:

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Assignee:

Hitachi Industrial Equipment Systems Co., Ltd.

International Classes:

C09D11/50; C09D11/328; C09D11/38; G01K11/16

Domestic Patent References:

JP2012180412A
JP2001271016A
JP2003176419A
JP2001247807A
JP2019127498A

Foreign References:

CN104087064A
US20160376458

Attorney, Agent or Firm:

Polaire Patent Attorneys Corporation

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