 Blends based on vinyl aromatic polymers with enhanced mechanical characteristics |
| We claim: 1. A blend based on vinyl aromatic polymers endowed with high mechanical properties even ... |
|
| Thermoformable, chemical resistant polymer blends |
| We claim: 1. A thermoformable polymer blend that is resistant to the solvent effects of halogenated ... |
|
| Thermoformable, chemical resistant polymer blends |
| OF THE INVENTION Suitable monovinylidene aromatic polymers comprise polymers containing ... |
|
| Rapidly curable vinyl ether release coatings |
| What is claimed is: 1. A solventless, silicone free, UV curable release coating composition ... |
|
| Curable sealant composition |
| The inventive composition comprises or consists essentially of 1) at least one epoxy such as that ... |
|
| Charging member, and process cartridge and electrophotographic apparatus having the charging member |
| What is claimed is: 1. A charging member which is to be provided in contact with an object member ... |
|
|
Ink jet recording having an ink with carbon black
| Details |
Inventors: Suga, Yuko; Shimomura, Masako;
Assignee: Canon Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Hartary; Joseph W.
Assistant Examiner:
Attorney, Agent or Firm: Fitzpatrick, Cella, Harper & Scinto
An ink comprising an aqueous liquid medium which contains acid carbon black having a volatile content within the range of 3.5 to 8% by weight and a water-soluble resin having a weight average molecular weight within the range of 3,000 to 30,000, wherein the weight ratio of the acid carbon black to the water-soluble resin is within the range of 3:1 to 10:1. The present invention also relates to an ink jet recording method, and ink jet device, an ink cartridge and an ink jet recording apparatus which uses the ink. |
|
DETAILED DESCRIPTION Accordingly, it is an object of the present invention to solve the above-described problems of prior art and provide ink which permits the printing of an image with both superior fastness and high density.
It is another object of the present invention to provide an ink which has excellent long-term preservation stability, which permits printing with high density and which can constantly stably be discharged even if driving conditions vary or if the ink has been used for a long period of time even under high temperature, and provide an ink jet recording method, an ink jet cartridge and an ink jet recording device which uses this ink.
In order to achieve the above objects, the present invention provides an ink which comprises an aqueous liquid medium containing acid carbon black having a volatile content within the range of 3.
5 to 8% by weight of the total weight of the acid carbon black and a water-soluble resin having a weight average molecular weight within the range of 3,000 to 30,000, wherein the weight ratio of the acid carbon black to the water soluble resin is within the range of 3:1 to 10:1.
The present invention also provides an ink comprising an aqueous liquid medium which contains acid carbon black having a volatile content within the range of 3.
5 to 8% by weight of the total weight of the acid carbon black and a water-soluble resin having a weight average molecular weight within the range of 3,000 to 30,000, wherein the weight ratio of the acid carbon black to the water soluble resin is within the range of 3:1 to 10:1, and the water-soluble resin dissolved in the medium being 2% by weight or less.
The present invention further provides an ink jet recording method in which ink is discharged as droplets from orifices by applying heat energy to the ink in accordance with a recording signal; the ink comprises an aqueous liquid medium containing acid carbon black having a volatile content within the range of 3.
5 to 8% by weight of the total weight of the acid carbon black and a water-soluble resin having a weight average molecular weight of 3,000 to 30,000, the weight ratio of the acid carbon black to the water soluble resin is within the range of 3:1 to 10:1
|
|
Adhesives and Rubbers 
