Invention Grant
- Patent Title: Black ink compositions for inkjet printing
- Patent Title (中): 用于喷墨印刷的黑色油墨组合物
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Application No.: US09742475Application Date: 2000-12-20
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Publication No.: US06503308B2Publication Date: 2003-01-07
- Inventor: Rodney D. Stramel , Kai Kong Iu
- Applicant: Rodney D. Stramel , Kai Kong Iu
- Main IPC: C09D1100
- IPC: C09D1100

Abstract:
The present invention provides black ink compositions for use in inkjet printing, which exhibit improved neutral color, light fastness, and gray scale properties. The black ink compositions generally include a mixture of two or more black dyes in balanced concentrations to obtain black ink having the improved properties while retaining good print-ability in an inkjet pen. In one aspect, a black ink composition may include a mixture of pacified Reactive Black 31 and Direct Black 168.
Public/Granted literature
- US20020121219A1 Black ink compositons for inkjet printing Public/Granted day:2002-09-05
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