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1. WO2020112127 - ENCRES POUR L'IMPRESSION À JET D'ENCRE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS

1. An inkjet ink, comprising:

(A) a terpene phenol resin having a hydroxyl value of 46 to 150 mgKOH/g;

(B) ethanol; and

(C) 1 -propanol.

2. The inkjet ink of claim 1, wherein the terpene phenol resin (A) is a copolymer formed from a reaction between a monoterpene and a phenolic compound comprising at least one hydroxyl group and at least two replaceable hydrogen atoms in ortho- and/or para-positions with respect to the at least one hydroxyl group.

3. The inkjet ink of claim 2, wherein the monoterpene is at least one bicyclic monoterpene selected from the group consisting of 3-carene, a-pinene, b-pinene, and camphene.

4. The inkjet ink of claim 2, wherein the phenolic compound is phenol.

5. The inkjet ink of claim 1, wherein the terpene phenol resin (A) has a hydroxyl value of 65 to 135 mgKOH/g.

6. The inkjet ink of claim 1, wherein the terpene phenol resin (A) is present in an amount of 0.1 to 10 wt. %, based on a total weight of the inkjet ink.

7. The inkjet ink of claim 1, wherein a weight ratio of 1 -propanol (C) to ethanol (B)

((C) :(B)) is 0.1 : 1 to 3.5: 1.

8. The inkjet ink of claim 1, wherein a combined weight of ethanol (B) and 1-propanol (C) ((B)+(C)) in the inkjet ink is 50 to 95 wt. %, based on a total weight of the inkjet ink.

9. The inkjet ink of claim 1 , further comprising (D) an alkanolamine.

10. The inkjet ink of claim 9, wherein the alkanolamine (D) comprises 2 to 8 carbon atoms.

1 1. The inkjet ink of claim 9, wherein the alkanolamine (D) is isopropanolamine.

12. The inkjet ink of claim 9, wherein the alkanolamine (D) is present in an amount of up to 3 wt. %, based on a total weight of the inkjet ink.

13. The inkjet ink of claim 1, further comprising (E) a silicone acrylate copolymer.

14. The inkjet ink of claim 13, wherein the silicone acrylate copolymer (E) is a graft copolymer.

15. The inkjet ink of claim 13, wherein the silicone acrylate copolymer (E) is present in an amount of up to 5 wt. %, based on a total weight of the inkjet ink.

16. The inkjet ink of claim 1, further comprising (F) a colorant.

17. The inkjet ink of claim 1, which is substantially free of a ketone solvent.

18. The inkjet ink of claim 1, which is substantially free of 2-propanol.

19. A printed article, comprising:

a substrate and a dried form of the inkjet ink of claim 1 disposed on the substrate.

20. A method of forming a printed image on a substrate, comprising:

applying the inkjet ink of claim 1 onto the substrate with a thermal inkjet printhead; and

drying the inkjet ink.

21. The method of claim 20, wherein the inkjet ink is dried by leaving exposed to air for 30 seconds or less.

22. The method of claim 20, wherein a heater is not employed for drying the inkjet ink.