Invention Grant
- Patent Title: Ink and processing liquid set, image forming method, and image forming device
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Application No.: US16351588Application Date: 2019-03-13
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Publication No.: US11040561B2Publication Date: 2021-06-22
- Inventor: Takashi Tamai , Dongsik Jang , Atsufumi Hanazawa , Satoshi Takahashi , Yoshiki Yanagawa , Tsutomu Maekawa , Yukitaka Watarai
- Applicant: Takashi Tamai , Dongsik Jang , Atsufumi Hanazawa , Satoshi Takahashi , Yoshiki Yanagawa , Tsutomu Maekawa , Yukitaka Watarai
- Applicant Address: JP Kanagawa; JP Tokyo; JP Tokyo; JP Kanagawa; GB Telford; JP Ibaraki; JP Ebina
- Assignee: Takashi Tamai,Dongsik Jang,Atsufumi Hanazawa,Satoshi Takahashi,Yoshiki Yanagawa,Tsutomu Maekawa,Yukitaka Watarai
- Current Assignee: Takashi Tamai,Dongsik Jang,Atsufumi Hanazawa,Satoshi Takahashi,Yoshiki Yanagawa,Tsutomu Maekawa,Yukitaka Watarai
- Current Assignee Address: JP Kanagawa; JP Tokyo; JP Tokyo; JP Kanagawa; GB Telford; JP Ibaraki; JP Ebina
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2018-048211 20180315,JPJP2018-230085 20181207
- Main IPC: B41M5/00
- IPC: B41M5/00 ; B41J11/00 ; C09D11/102 ; C09D11/107 ; C09D11/54

Abstract:
An ink and processing liquid set contains a processing liquid to be applied to a recording medium, the processing liquid including a multivalent metal salt and an ink to be applied to an area of the recording medium where the processing liquid has been applied, the ink including a urethane resin, a styrene-acrylic resin, and a pigment, wherein the following relations are satisfied: 0.5≤B/C≤0.7, where B represents a static surface tension of the ink and C represents a static surface tension of the processing liquid; and 0.5≤E/D≤0.9, and 35 (mN/m)≤E≤55 (mN/m), where D represents a dynamic surface tension at 15 ms of the processing liquid and E represents a dynamic surface tension at 1500 ms of the processing liquid.
Public/Granted literature
- US20190283479A1 INK AND PROCESSING LIQUID SET, IMAGE FORMING METHOD, AND IMAGE FORMING DEVICE Public/Granted day:2019-09-19
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