- Patent Title: Ink set, white ink, recording method, and ink discharging device
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Application No.: US16133790Application Date: 2018-09-18
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Publication No.: US10596823B2Publication Date: 2020-03-24
- Inventor: Koji Katsuragi
- Applicant: RICOH COMPANY, LTD.
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LTD.
- Current Assignee: RICOH COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2017-195971 20171006; JP2018-134060 20180717
- Main IPC: C09D11/033
- IPC: C09D11/033 ; C09D11/10 ; C09D11/12 ; C09D11/32 ; C09D11/40 ; C08K7/24 ; C08K7/26 ; B41J2/21 ; B41M7/00 ; B41J2/165

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 cm−1 to the maximum value X in an absorption band of from 1590 to 1610 cm−1, 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.
Public/Granted literature
- US20190105919A1 INK SET, WHITE INK, RECORDING METHOD, AND INK DISCHARGING DEVICE Public/Granted day:2019-04-11
Information query
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