Patent
Ink, ink cartridge, and ink jet recording method
| العنوان: | Ink, ink cartridge, and ink jet recording method |
|---|---|
| Patent Number: | 8,636,350 |
| تاريخ النشر: | January 28, 2014 |
| Appl. No: | 13/214980 |
| Application Filed: | August 22, 2011 |
| مستخلص: | An ink includes a plurality of pigments, a plurality of water-soluble polymers, a surfactant, and a water-soluble organic solvent. The surfactant includes a polyoxyethylene alkyl ether having an HLB value of 13.0 or more as a value determined by a Griffin method, the plurality of pigments include C.I. Pigment Yellow 74 and C.I. Pigment Yellow 128, the plurality of water-soluble polymers include an acrylic polymer and a urethane polymer, and the water-soluble organic solvent includes a compound represented by the following Formula (1): HO—(CH2CH2O)n—H, wherein n is an integer of 1 to 4. |
| Inventors: | Takayama, Hideki (Fujisawa, JP); Nakata, Eiichi (Kawasaki, JP); Nakajima, Yoshio (Yokohama, JP); Shimizu, Yuhei (Kawasaki, JP) |
| Assignees: | Canon Kabushiki Kaisha (Tokyo, JP) |
| Claim: | 1. An ink comprising: a plurality of pigments, a plurality of water-soluble polymers, a surfactant, and a water-soluble organic solvent; wherein the surfactant includes a polyoxyethylene alkyl ether having an HLB value of 13.0 or more as a value determined by a Griffin method; the plurality of pigments include C.I. Pigment Yellow 74 and C.I. Pigment Yellow 128; the plurality of water-soluble polymers include an acrylic polymer and a urethane polymer; and the water-soluble organic solvent includes a compound represented by the following Formula (1): HO—(CH 2 CH 2 O) n —H Formula (1) wherein in Formula (1), n is an integer of 1 to 4. |
| Claim: | 2. The ink according to claim 1 , wherein the content (% by mass) of the compound represented by Formula (1) in the ink is 10.0 times or more and 20.0 times or less the content (% by mass) of the polyoxyethylene alkyl ether, as the mass ratio. |
| Claim: | 3. The ink according to claim 1 , wherein the content (% by mass) of the polyoxyethylene alkyl ether in the ink is 0.2% by mass or more and 1.0% by mass or less based on the total mass of the ink. |
| Claim: | 4. The ink according to claim 1 , wherein the compound represented by Formula (1) is triethylene glycol. |
| Claim: | 5. The ink according to claim 1 , wherein the polyoxyethylene alkyl ether has an HLB value of 15.0 or more as a value determined by the Griffin method. |
| Claim: | 6. The ink according to claim 1 , wherein the water-soluble organic solvent further includes at least one of 1,2-alkanediol and glycol ether. |
| Claim: | 7. The ink according to claim 1 , wherein a chain extender of the urethane polymer is neopentyl glycol. |
| Claim: | 8. An ink cartridge comprising an ink storage portion for storing an ink, wherein the ink storage portion stores an ink according to claim 1 . |
| Claim: | 9. An ink jet recording method for recording an image on a recording medium by ejecting an ink by an ink jet system, wherein the ink is an ink according to claim 1 . |
| Claim: | 10. The ink according to claim 1 , wherein the acid value of the water-soluble acrylic polymer is 50 mg KOH/g or more and 300 mg KOH/g or less. |
| Claim: | 11. The ink according to claim 1 , wherein the acid value of the water-soluble urethane polymer is 10 mg KOH/g or more and 110 mg KOH/g or less. |
| Claim: | 12. The ink according to claim 1 , wherein the acid value of the water-soluble urethane polymer is less than that of the water-soluble acrylic polymer. |
| Claim: | 13. The ink according to claim 1 , wherein the total content of the pigments in the ink is 0.30 times or more and 10.0 times or less the content of the water-soluble acrylic polymer in the ink, as the mass ratio. |
| Claim: | 14. The ink according to claim 13 , wherein plurality of pigments are dispersed in the ink by the acrylic polymer. |
| Claim: | 15. The ink according to claim 1 , wherein the content (% by mass) of C.I. Pigment Yellow 74 is 0.5 times or more and 2.0 times or less the content (% by mass) of C.I. Pigment Yellow 128, as the mass ratio. |
| Claim: | 16. The ink according to claim 1 , wherein the content (% by mass) of the water-soluble acrylic polymer is 0.1 times or more and 2.0 times or less the content (% by mass) of the water-soluble urethane polymer, as the mass ratio. |
| Claim: | 17. The ink according to claim 1 , wherein the content (% by mass) of the compound represented by Formula (1) is 10.0 times or more and 20.0 times or less the content (% by mass) of the polyoxyethylene alkyl ether having an HLB value of 13.0 or more, as the mass ratio. |
| Claim: | 18. The ink according to claim 1 , wherein the ink is for ink jet recording. |
| Current U.S. Class: | 347/100 |
| Patent References Cited: | 2005/0052515 March 2005 Udagawa et al. 2009/0176071 July 2009 Koganehira et al. 2000-345080 December 2000 03455764 October 2003 2006-070123 March 2006 |
| Primary Examiner: | Martin, Laura |
| Attorney, Agent or Firm: | Canon U.S.A., Inc., IP Division |
| رقم الانضمام: | edspgr.08636350 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |