Carbon black and recording liquid using the same
View Patent ↗A recording liquid which gives a printed matter having a high blackness, reduced blurring, satisfactory printed-image quality, and satisfactory print fastness of a record such as light resistance and water resistance, and which has a low viscosity, satisfactory suitability for ejection, and excellent storage stability is provided. A carbon black has the following features (a) to (c): (a) to have a 24M4 DBP absorption of 100 cm 3 /100 g or higher, (b) to have a D 75 larger than 45 nm and smaller than 120 nm, and (c) to have a TINT exceeding 110%. The recording liquid contains the carbon black.
1. A carbon black having the following features (a) to (c):
(a) a 24M4 DBP absorption of 100 cm 3 /100 g or higher,
(b) a D 75 between 45 nm and 120 nm, and
(c) a TINT exceeding 110%.
2. The carbon black as claimed in claim 1 , wherein the carbon black has the further following feature (d):
(d) a D 1/2 /D mod of 0.7 or lower.
3. A recording liquid comprising the carbon black as claimed in claim 1 .
4. A recording liquid comprising the carbon black as claimed in claim 2 .
5. The recording liquid as claimed in claim 3 , wherein the carbon black further has a dispersed-particle diameter D50 of from 150 nm to 300 nm.
6. A method of printing on a porous material comprising printing the recording liquid as claimed in claim 3 , on the porous material.
7. The recording liquid as claimed in claim 4 , wherein the carbon black further has a dispersed-particle diameter D50 of from 150 nm to 300 nm.
8. A method of printing on a porous material comprising printing the recording liquid as claimed in claim 4 on the porous material.
9. A method of printing on a porous material comprising printing the recording liquid as claimed in claim 5 on the porous material.
10. A method of printing on a porous material comprising printing the recording liquid as claimed in claim 7 on the porous material.
11. The method according to claim 6 , wherein the porous material is paper.
12. The method according to claim 8 , wherein the porous material is paper.
13. The method according to claim 9 , wherein the porous material is paper.
14. The method according to claim 10 , wherein the porous material is paper.