IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0058472
(2005-02-15)
|
등록번호 |
US-7533980
(2009-07-01)
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발명자
/ 주소 |
- Bauer, Stephen W.
- Doumaux, Howard A.
- Chen, Tienteh
|
출원인 / 주소 |
- Hewlett Packard Development Company, L.P.
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인용정보 |
피인용 횟수 :
4 인용 특허 :
10 |
초록
▼
An ink set for ink-jet printing includes a medium cyan ink-jet ink, a magenta ink-jet ink, and a gray ink-jet ink. Each of the medium cyan ink-jet ink, the magenta ink-jet ink, and the gray ink-jet ink are configured to have a lightness at a predetermined/given number of drops per unit area of an im
An ink set for ink-jet printing includes a medium cyan ink-jet ink, a magenta ink-jet ink, and a gray ink-jet ink. Each of the medium cyan ink-jet ink, the magenta ink-jet ink, and the gray ink-jet ink are configured to have a lightness at a predetermined/given number of drops per unit area of an image-receiving medium such that the lightness of each of the inks are substantially matched.
대표청구항
▼
What is claimed is: 1. An ink set for ink-jet printing, comprising: a cyan ink-jet ink; a magenta ink-jet ink; and a gray ink-jet ink; wherein each of the cyan ink-jet ink, the magenta ink-jet ink, and the gray ink-jet ink are configured to have a lightness at a given number of drops per unit area
What is claimed is: 1. An ink set for ink-jet printing, comprising: a cyan ink-jet ink; a magenta ink-jet ink; and a gray ink-jet ink; wherein each of the cyan ink-jet ink, the magenta ink-jet ink, and the gray ink-jet ink are configured to have a lightness at a given number of drops per unit area of an image-receiving medium such that the respective lightness values of each of the inks are within a deviation of about ±5 to each other. 2. The ink set as defined in claim 1 wherein the image-receiving medium comprises an ink receiving layer. 3. The ink set as defined in claim 2 wherein ink receiving layer is porous. 4. The ink set as defined in claim 2 wherein ink receiving layer is swellable. 5. The ink set as defined in claim 1 wherein the magenta ink-jet ink has a visible absorbance at peak maxima ranging between about 0.01 and about 0.06 at a 1:10,000 dilution of dye to water. 6. The ink set as defined in claim 1 wherein the cyan ink-jet ink has a visible absorbance at peak maxima ranging between about 0.01 and about 0.10 at a 1:10,000 dilution of dye to water. 7. The ink set as defined in claim 1 wherein the gray ink-jet ink has a visible absorbance at peak maxima ranging between about 0.001 and about 0.05 at a 1:10,000 dilution of dye to water. 8. The ink set as defined in claim 1 wherein the cyan ink-jet ink is a medium cyan ink having a visible absorbance at peak maxima ranging between about 0.047 and about 0.057 at a 1:10,000 dilution of dye to water. 9. The ink set as defined in claim 1, further comprising a black ink-jet ink. 10. The ink set as defined in claim 9 wherein a neutral axis is defined by application of the black ink-jet ink and the gray ink-jet ink. 11. The ink set as defined in claim 9 wherein the black ink-jet ink has a visible absorbance at peak maxima ranging between about 0.02 and about 0.75 at a 1:10,000 dilution of dye to water. 12. The ink set as defined in claim 1, further comprising a second magenta ink-jet ink having a hue that is darker than the magenta ink-jet ink. 13. The ink set as defined in claim 1, wherein light color inks include the cyan ink-jet ink, the magenta ink-jet ink and the gray ink-jet ink and wherein the ink set further comprises dark color inks including a black ink-jet ink and a second magenta ink-jet ink. 14. The ink set as defined in claim 1 wherein the lightness of each of the cyan ink, the magenta ink, and the gray ink ranges between about 65 and about 95. 15. The ink set as defined in claim 1 wherein the lightness of each of the inks is measured at 279 drops per square millimeter with a drop size of 8 nanograms. 16. A six-pen ink set for ink-jet printing, comprising: a magenta ink-jet ink having a dye load capable of providing a visible absorbance between about 0.01 and about 0.06 at a 1:10,000 dilution of dye to water; a gray ink-jet ink having a dye load capable of providing a visible absorbance between about 0.001 and about 0.05 at a 1:10,000 dilution of dye to water; a medium cyan ink-jet ink having a dye load capable of providing a visible absorbance between about 0.01 and about 0.10 at a 1:10,000 dilution of dye to water; a black ink-jet ink having a dye load capable of providing a visible absorbance between about 0.02 and about 0.75 at a 1:10,000 dilution of dye to water; a yellow ink-jet ink having a dye load capable of providing a visible absorbance between about 0.01 and about 0.2 at a 1:10,000 dilution of dye to water; and a second magenta ink-jet ink having a dye load capable of providing a visible absorbance between about 0.02 and about 0.5 at 1:10,000 dilution of dye to water. 17. The ink set as defined in claim 16 wherein the inks are configured to have a balanced fade when deposited on a medium. 18. The six-pen ink set as defined in claim 16 wherein the inks are adapted to at least one of substantially reduce and eliminate at least one of humid bleed and humid hue shift when deposited on a medium. 19. The six-pen ink set as defined in claim 16 wherein the inks are adapted to be deposited on a medium, the medium comprising: a substrate; and an ink receiving layer disposed on the substrate, the ink receiving layer including: a water soluble polymer; an amount of cationic colloidal silica; and a dye mordant. 20. The six-pen ink set as defined in claim 19 wherein the dye mordant comprises a hydrophobic addition monomer and a cationic addition monomer. 21. The six-pen ink set as defined in claim 19 wherein the dye mordant comprises at least one of a water soluble polymer and a water dispersible polymer having at least one of a primary amino group, a secondary amino group, a tertiary amino group, and a quaternary ammonium salt group attached thereto. 22. The six-pen ink set as defined in claim 19 wherein the ink receiving layer comprises between about 20 wt. % and about 95 wt. % of the water soluble polymer, between about 0 wt. % and about 20 wt. % of the cationic colloidal silica, and between about 2 wt. % and about 20 wt. % of the dye mordant. 23. The six-pen ink set as defined in claim 19 wherein the water soluble polymer comprises at least one of polyvinyl alcohol, a copolymer of polyvinylalcohol with polyethyleneoxide, a copolymer of polyvinylalcohol with polyacrylic or maleic acid, acetoacetylated polyvinylalcohol, polyvinylalcohol with quaternary ammonium functional groups, a copolymer of polyvinylalcohol-polyvinylamine, and mixtures thereof. 24. The six-pen ink set as defined in claim 19 wherein the amount of cationic colloidal silica comprises a plurality of particles, each of which has a diameter ranging between about 5 nm and about 100 nm and a zeta potential of at least about 10 mv at a pH of 3.5. 25. An ink cartridge comprising a plurality of ink tanks accommodating the inks of the six-pen ink set defined in claim 16. 26. A method for printing an image on a recording medium, comprising: preferentially depositing dark color inks on the recording medium, the dark color inks including the black ink-jet ink and the second magenta ink-jet ink of the six-pen ink set as defined in claim 16; and preferentially depositing light color inks on the recording medium, the light color inks including the magenta ink-jet ink, the gray ink-jet ink, the medium cyan ink-jet ink, and the yellow ink-jet ink. 27. The method as defined in claim 26 wherein the magenta ink-jet ink, the medium cyan ink-jet ink, and the gray ink-jet ink are configured to have a lightness at a given number of drops per unit area of the recording medium such that the lightness of each of the inks is substantially matched. 28. The method as defined in claim 26 wherein the medium cyan ink-jet ink substantially matches a dot visibility of the gray ink-jet ink and the magenta ink-jet ink. 29. The method as defined in claim 26 wherein a neutral axis is defined by deposition of the black ink-jet ink and the gray ink-jet ink. 30. The method as defined in claim 26 wherein the recording medium comprises: a substrate; and an ink receiving layer disposed on the substrate, the ink receiving layer including: a water soluble polymer; an amount of a cationic colloidal silica; and a dye mordant. 31. An image obtained by the printing method as defined in claim 26.
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