Invention Grant
US06648951B2 Waterfest, environmentally friendly inks adapted for point-of-sale ink-jet applications
失效
Waterfest,适用于销售点喷墨应用的环保油墨
- Patent Title: Waterfest, environmentally friendly inks adapted for point-of-sale ink-jet applications
- Patent Title (中): Waterfest,适用于销售点喷墨应用的环保油墨
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Application No.: US09946460Application Date: 2001-09-04
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Publication No.: US06648951B2Publication Date: 2003-11-18
- Inventor: Xiaohe Chen , David Tyvoll , George M. Sarkisian
- Applicant: Xiaohe Chen , David Tyvoll , George M. Sarkisian
- Main IPC: C09D1102
- IPC: C09D1102

Abstract:
A waterfast, environmentally friendly ink-jet ink, is disclosed comprising from 1% to 90% by weight of a first humectant selected from the group consisting of glycerol, propanediol, and combinations thereof; from 1% to 25% by weight of a second humectant selected from the group consisting of ethylene glycol, diethylene glycol, propylene glycol, and combinations thereof; from 1% to 20% by weight of a drying agent selected from the group consisting of 1,2-hexanediol, 1,2-pentanediol, and combinations thereof; from 0% to 20% by weight of 2-pyrrolidone; from 0.05% to 10.0% by weight of a waterfastness control dye selected from the group consisting of azo-containing dyes and phthalocyanine-containing dyes; and at least one additional dye present at from about 1.0% to 10.0% by weight. If the waterfastness control dye is an azo-containing dye, such dyes can include Direct Red 227, Direct Red 254, Direct Yellow 86, and Acid Orange 7. Alternatively, if the waterfastness control dye is a phthalocyanine-containing dye, the nickel, copper or aluminum phthalocyanines can be used.
Public/Granted literature
- US20020078858A1 Waterfast, environmentally friendly inks adapted for point-of-sale ink-jet ink applications Public/Granted day:2002-06-27
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