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US-2024019450-A1 · Jan 18, 2024 · US
Blue ink for postage printing
US9447293B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9447293-B2 |
| Application number | US-201013702897-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 16, 2010 |
| Priority date | Jun 16, 2010 |
| Publication date | Sep 20, 2016 |
| Grant date | Sep 20, 2016 |
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Abstract
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A blue ink for postage printing, which contains a blue pigment, a black dye, and an aqueous carrier, wherein the weight ratio of blue pigment to black dye is in the range of 50:1 to 2:1. The blue pigment is a copper phthalocyanine pigment or an anthraquinone pigment, and the black dye is an azo dye.
First claim
Opening claim text (preview).
What is claimed is: 1. A blue ink for postage printing comprising: a blue pigment, a black dye, and an aqueous carrier, wherein the weight ratio of blue pigment to black dye is in the range of 50:1 to 2:1, wherein the blue pigment is selected from a group consisting of a copper phthalocyanine pigment and an anthraquinone pigment; and the black dye is an azo dye; wherein, when printed as a barcode, the blue ink has a symbol contrast of at least 60% and has a water fastness of a…
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Classifications
- C09B67/0033Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C09D11/02Primary
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9447293B2 cover?
- A blue ink for postage printing, which contains a blue pigment, a black dye, and an aqueous carrier, wherein the weight ratio of blue pigment to black dye is in the range of 50:1 to 2:1. The blue pigment is a copper phthalocyanine pigment or an anthraquinone pigment, and the black dye is an azo dye.
- Who is the assignee on this patent?
- Ma Zeying, Little Robert F, Morris Peter C, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C09B67/0033. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 20 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).