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1. (WO2019046361) IR-REFLECTIVE INK, FILM AND TAPE
Примечание: Текст, основанный на автоматизированных процессах оптического распознавания знаков. Для юридических целей просьба использовать вариант в формате PDF

WHAT IS CLAIMED IS:

1. A near-infrared light reflective ink comprised of:

(a) at least one inorganic pigment that reflects near-infrared light;

(b) a polymeric resin component; and

(c) a solvent.

2. The near-infrared reflective ink of claim 1, wherein the at least one inorganic pigment that reflects near-infrared light is selected from an inorganic black pigment, an inorganic colored pigment, and combinations thereof.

3. The near-infrared reflective ink of claims 1 or 2, wherein the amount of inorganic black pigment present in the near-infrared reflective ink is 5wt% to 50wt%, based on the total weight of the ink.

4. The near-infrared reflective ink of any preceding claim, wherein the inorganic black pigment is selected from chromium iron oxide, chromium iron nickel oxide, copper chromite, iron chromite, manganese ferrite, nickel manganese iron oxide, non-IR reflective inorganic black pigments, and combinations thereof.

5. The near-infrared reflective ink of any preceding claim, wherein the amount of inorganic colored pigment present in the ink is 2wt% to 20 wt% based on the total weight of the ink.

6. The near-infrared reflective ink of any preceding claim, wherein the inorganic colored pigment is selected from bismuth vanadate, chrome antimony titanate, chromium oxide, cobalt aluminate, cobalt chromite, cobalt chromium aluminate, cobalt lithium aluminate, cobalt titanate, iron chromite, iron titanium chromite, lead chromate, manganese antimony titanate, manganese titanate, nickel antimony titanate, nickel titanate, niobium tin pyrochlore, tin zinc, titanium oxide, zinc ferrite, zinc iron chromite, non-IR reflective inorganic colored pigments, and combinations thereof.

7. The near-infrared reflective ink of any preceding claim, wherein the resin is present in an amount of 1.0wt% to 35wt%.

8. The near-infrared reflective ink of any preceding claim, wherein the solvent is present in an amount of 5.0wt% to 80wt%, preferably 5.0wt% to 65wt%, more preferably 40wt% to 76wt%, still more preferably 45wt% to 55wt%.

9. The near-infrared reflective ink of any preceding claim, wherein the ink further comprises additives selected from rheology-modifiers, dispersants, defoaming agents, matting agents, adhesion promoters, waxes, surfactants, and hardening agents.

10. The near-infrared reflective ink of any preceding claim, wherein the ink is free of azo-based compounds.

11. The near-infrared reflective ink of any preceding claim, wherein the ink is free of triblock polymers.

12. The near-infrared reflective ink of any preceding claim, wherein, when dried to form a dried coating, exhibits one or more of the following properties:

a reflectance of > 11%; preferably > 15%; more preferably >20 %; and still more preferably > 25 %; at a near-infrared light emission of 850nm;

CIELAB values of: L = 15 to 36, a* = -3.5 to 10, b* = -3.5 to 8;

preferably L = 16 to 36, a* = -3 to 3, b* = -3 to 3; more preferably L = 22.5 ± 5, a*= 0 ± 2, b*= -1± 2.

13. The near-infrared reflective ink of claim 12, wherein the properties are exhibited at a dried coating thickness of 0.1 μπι to 5 μπι.

14. A dried coating comprising the near-infrared reflective ink of any preceding claim that has been dried, wherein the coating has a thickness Ι .Ομπι to 200μηι, preferably Ι .Ομιη to 50μιη, more preferably Ι .Ομιη to 20μm, still more preferably Ι .Ομιη to 10μm, even still more preferably Ι .Ομιη to 8.0μιη, yet even still more preferably Ι .Ομιη to 5.0μm, and again yet even still more preferably Ι .Ομιη to 3.0μιη.

15. The dried coating of claim 14, wherein the coating comprises low hue colors having L* values below 45.

16. The dried coating of claims 14 or 15, wherein at a coating thickness of 0.1 μιη to 5 μιη, the coating has a reflectance of > 11%; preferably > 15%; more preferably

>20 %; and still more preferably > 25 %; at a near-infrared light emission of 850nm.

17. The dried coating of any one of claims 14-16, wherein the coating has CIELAB values of: have CIELAB values of: L = 15 to 36, a* = -3.5 to 10, b* = -3.5 to 8; preferably L = 16 to 36, a* = -3 to 3, b* = -3 to 3; more preferably L = 22.5 ± 5, a*= 0 ± 2, b*= -l± 2.

18. A near infrared reflective article, comprising: the dried coating of any one of claims 14-17 on a substrate.

19. The near-infrared reflective article of claim 18, wherein the ink has been applied by a method selected from flexography, gravure, lithography, screen, and digital printing.

20. A near-infrared light reflective tape comprising:

a) the dried coating of any one of claims 14-17 on a side of a support layer; b) an adhesive layer on a side of the support layer;

wherein the near-infrared-reflective tape has a thickness of 2.0μιη to ΙΟΟμηι, preferably 2.0μιη to 50μιη; more preferably 3.0μιη to 20μιη, still more preferably 4.0μ to ΙΟ.Ομιη, and event still more preferably 5 μιη to 6 μιη.

21. The near-infrared light reflective tape of claim 20, further comprising a matte layer over the dried coating of any one of claims 14-17.

22. The near-infrared light reflective tape of claims 20 or 21, further comprising a release liner applied over the adhesive layer.

23. The near-infrared light-reflective tape of any one of claims 20-22, wherein the adhesive tape is a pressure sensitive adhesive tape.

24. The near-infrared light-reflective tape of any one of claims 20-23, wherein the ink has been applied by a method selected from flexography, gravure, lithography, screen, and digital printing.