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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12305052 B1

PDFFull Text
Date of Patent:
May. 20, 2025

Filed:

Jan. 11, 2023

Ink set, recording method, and recording device

Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Takayoshi Kagata, Shiojiri, JP;

Assignee:

SEIKO EPSON CORPORATION, , JP;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Manish S Shah

Int. Cl.
CPC ...
C09D 11/40 (2014.01); B41J 2/01 (2006.01); B41J 2/16 (2006.01); B41J 2/165 (2006.01); B41J 2/21 (2006.01); B41M 5/00 (2006.01); C09D 11/037 (2014.01); C09D 11/322 (2014.01); C09D 11/328 (2014.01); C09D 11/36 (2014.01); C09D 11/38 (2014.01); C09D 11/50 (2014.01);
U.S. Cl.
CPC ...
C09D 11/40 (2013.01); B41J 2/01 (2013.01); B41J 2/1623 (2013.01); B41J 2/16517 (2013.01); B41J 2/2107 (2013.01); B41M 5/0023 (2013.01); C09D 11/037 (2013.01); C09D 11/322 (2013.01); C09D 11/328 (2013.01); C09D 11/36 (2013.01); C09D 11/38 (2013.01); B41J 2/16526 (2013.01); C09D 11/50 (2013.01);
Abstract

An ink set is an ink set including a cyan ink C1 which has a fluorescent brightening intensity of 3.0 or greater and an SP value of 12 to 18 (cal/cm), a magenta ink M1 which has a fluorescent brightening intensity of 3.0 or greater and an SP value of 12 to 18 (cal/cm), a yellow ink Y1 which has a fluorescent brightening intensity of 3.0 or greater and an SP value of 12 to 18 (cal/cm), a cyan ink C2 which has a fluorescent brightening intensity of less than 3.0 and an SP value of 12 to 18 (cal/cm), a magenta ink M2 which has a fluorescent brightening intensity of less than 3.0 and an SP value of 12 to 18 (cal/cm), and a yellow ink Y2 which has a fluorescent brightening intensity of less than 3.0 and an SP value of 12 to 18 (cal/cm), in which the SP values are values obtained by a turbidity titration method using a mixed solution of water and acetone.

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