发明申请
- 专利标题: Water-based ink set for ink-jet recording
- 专利标题(中): 用于喷墨记录的水性油墨组
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申请号: US11492770申请日: 2006-07-26
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公开(公告)号: US20070022902A1公开(公告)日: 2007-02-01
- 发明人: Narumi Koga
- 申请人: Narumi Koga
- 申请人地址: JP Nagoya-shi
- 专利权人: Brother Kogyo Kabushiki Kaisha
- 当前专利权人: Brother Kogyo Kabushiki Kaisha
- 当前专利权人地址: JP Nagoya-shi
- 优先权: JP2005-216146 20050726; JP2006-074339 20060317
- 主分类号: C09D11/02
- IPC分类号: C09D11/02
摘要:
Provided is a water-based ink set for ink-jet recording for reducing bleeding between a black (Bk) ink and a yellow (Y) ink and for reducing color unevenness in a portion formed by color mixing of color inks. The water-based ink set for ink-jet recording includes at least a Bk ink, a Y ink, a magenta (M) ink and a cyan (C) ink. In this configuration, the following relationships are satisfied: (1) σ1000Bk≧35 mN/m; (2) |σ30Y−σ30Bk|≦5 mN/m; (3) σ30M≧30 mN/m, σ30C≧30 mN/m; (4) σ30Y>σ30M, σ30Y>σ30C; and (5) σ30Y+σ30M≦93 mN/m, σ30Y+σ30C≦93 mN/m, wherein σ30Bk, σ30Y, σ30M and σ30C are dynamic surface tensions of the Bk ink, the Y ink, the M ink and the C ink, respectively, at a lifetime of 30 ms as measured by a maximum bubble pressure method at a measurement temperature of 25° C., and σ1000Bk is a dynamic surface tension of the black ink at a lifetime of 1,000 ms as measured by the maximum bubble pressure method at a measurement temperature of 25° C.
公开/授权文献
- US07604340B2 Water-based ink set for ink-jet recording 公开/授权日:2009-10-20