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.:
Date of Patent:
Mar. 24, 2020
Filed:
Sep. 18, 2018
Applicant:
Ricoh Company, Ltd., Tokyo, JP;
Inventor:
Koji Katsuragi, Kanagawa, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/033 (2014.01); C09D 11/10 (2014.01); C09D 11/12 (2006.01); C09D 11/32 (2014.01); C09D 11/40 (2014.01); C08K 7/24 (2006.01); C08K 7/26 (2006.01); B41J 2/21 (2006.01); B41M 7/00 (2006.01); B41J 2/165 (2006.01);
U.S. Cl.
CPC ...
B41J 2/2114 (2013.01); C09D 11/033 (2013.01); C09D 11/10 (2013.01); C09D 11/12 (2013.01); C09D 11/32 (2013.01); C09D 11/40 (2013.01); B41J 2/16517 (2013.01); B41J 2/2117 (2013.01);
Abstract
An ink set includes a white ink including a hollow particle accounting for 5.0 to 25.0 percent by mass of the white ink and a non-white ink, wherein, in an infrared spectrum for a dried film of the white ink, a ratio (Y/X) of the maximum value Y in an absorption band of from 1720 to 1740 cmto the maximum value X in an absorption band of from 1590 to 1610 cm, is from 3.0 to 6.0, wherein the non-white ink has a surface tension of from 20.0 to 30.0 mN/m at a bubble lifetime of 1500 ms.