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:
Jan. 30, 2018
Filed:
Mar. 09, 2017
Shizuka Kohzuki, Kanagawa, JP;
Akiko Bannai, Kanagawa, JP;
Shizuka Kohzuki, Kanagawa, JP;
Akiko Bannai, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
Provided is cleaning solution used for cleaning ink containing water and resin, cleaning solution containing water and solvent. Solvent contains glycol ether compound represented by general formula 1. Ink film obtained by drying the ink has swelling ratio of 20 percent or higher but 150 percent or lower, where swelling ratio is calculated by mathematical formula 1 based on masses of ink film before/after immersed in cleaning solution at 25 degrees C. for 24 hours,R(OR)OR  General formula 1 In general formula 1, Rand Rrepresent hydrogen atom or alkyl group including from 1 through 4 carbon atoms, Rrepresents alkyl group including from 2 through 3 carbon atoms, and X represents integer of from 1 through 4,Swelling ratio(%)=100×[()/  Mathematical formula 1 In mathematical formula 1, A represents mass of ink film before immersed, and B represents mass of ink film after immersed.