Anti-glare, texture coating for packaging

Patent metadata

Field	Value
Publication number	US-2017166752-A1
Application number	US-201515115535-A
Country	US
Kind code	A1
Filing date	Feb 3, 2015
Priority date	Feb 3, 2014
Publication date	Jun 15, 2017
Grant date	—

Abstract

An anti-glare, texture coating is described. The coating comprises an emulsion comprising (a) water, (b) a first particle comprising particles having an average particle size of greater than 0 but less than 10 microns and comprising acrylic beads, (c) an acrylic-based carrier and (d) a second particle comprising particles having an average particle size of from about 10 microns to about 125 microns and comprising polyamide, polyethylene, polypropylene, polytetrafluoroethylene or combinations or combinations of such. The combination of the water, the first particle and the acrylic-based carrier comprises from about 75% to about 95% by weight of the coating, and the second particle comprises from about 5% to about 25% by weight of the coating. Also described is a packaging material comprising (a) the coating and (b) a substrate comprising metal, glass, paper, plastic or thermoplastic. Further described is a method of rotogravure printing the coating to the substrate.

First claim

What is claimed is as follows:

1 . A coating comprising an emulsion comprising
(a) water, (b) a first particle comprising particles having an average particle size of greater than 0 but less than 10 microns and comprising acrylic beads, (c) an acrylic-based carrier and (d) a second particle comprising particles having an average particle size of from about 10 microns to about 125 microns and comprising polyamide, polyethylene, polypropylene, polytetrafluoroethylene or combinations of such, wherein the combination of the water, the first particle and the acrylic-based carrier comprises from about 75% to about 95% by weight of the coating and wherein the second particle comprises from about 5% to about 25% by weight of the coating.

2 . The coating of claim 1 , wherein the coating further comprises a coreactant additive in an amount from 0% to about 5% by weight of the coating.

3 . The coating of claim 1 , wherein the combination of the water, the first particle and the acrylic-based carrier comprises from about 80 to about 90% by weight of the coating and the second particle comprises from about 10% to about 20% by weight of the coating.

4 . The coating of claim 1 , wherein the combination of the water, the first particle and the acrylic-based carrier comprises from about 82% to about 85% by weight of the coating and the second particle comprises from about 15 to about 18% by weight of the coating.

5 . The coating of claim 1 wherein the second particle comprises particles having an average particle size of from about 25 microns to about 125 microns.

6 . The coating of claim 1 , wherein the second particle comprises particles having an average particle size of from about 80 microns to about 110 microns.

7 . The coating of claim 1 , wherein the second particle comprises particles having a first particle size and a second particle size.

8 . The coating of claim 1 , wherein the coating is printable.

9 . The coating of claim 1 , wherein the coating creates an anti-glare, texture effect on a packaging material in the absence of radiation curing.

10 . The coating of claim 1 , wherein the coating has a viscosity of fro about 50 to about 125 centipoise.

11 . (canceled)

12 . A packaging material comprising a substrate comprising metal, glass, paper, plastic or thermoplastic; and the coating of claim 1 .

13 . The packaging material of claim 2 wherein the substrate comprises a thermoplastic film.

14 . The packaging material of claim 12 , wherein the substrate comprises biaxially oriented polyethylene terephthalate.

15 . The packaging material of claim 12 wherein the coating is printable and is flexographic printed or rotogravure printed.

16 . (canceled)

17 . (canceled)

18 . (canceled)

19 . (canceled)

20 . (canceled)

21 . (canceled)

22 . (canceled)

23 . (canceled)

24 . (canceled)

25 . The packaging material of claim 12 , wherein the packaging material is food packaging.

26 . (canceled)

27 . A method of rotogravure printing the coating of claim 1 to a substrate comprising the sequential steps of
(a) preparing the coating by mixing the emulsion;
(b) using a rotogravure press to apply the coating to the substrate, wherein the substrate comprises metal, glass, paper, plastic or thermoplastic; and
(c) allowing the coated substrate to cure in the absence of radiation curing.

28 . The method of claim 27 further comprising adding reducer/thinner to the coating as needed to adjust coating viscosity to measure from about 50 centipoise to about 125 centipoise.

29 . (canceled)

30 . The method of claim 27 further comprising adding a coreactant additive to the coating in an amount from 0% to about 5 % by weight of the coating.

31 . The method of claim 27 further comprising corona treating the substrate prior to using the rotogravure press to apply the coating to the substrate.

32 . The method of claim 27 further comprising applying ink to the substrate as either a surface print or a reverse print prior to using the rotogravure press to apply the coating to the substrate.

33 . The method of claim 32 , wherein the rotogravure press applies the coating on a surface over the ink if surface printed or on a surface without the ink if reverse printed.

34 . (canceled)

35 . (canceled)

36 . (canceled)

37 . (canceled)

38 . (canceled)

39 . (canceled)

40 . (canceled)

Assignees

• Bemis Co Inc

Inventors

• Kriha James A

Classifications

• C08J7/0427

  with only one layer of a composition containing a polymer binder (with more layers C08J7/042) · CPC title

• C08J2433/10

  Homopolymers or copolymers of methacrylic acid esters · CPC title

• C09D5/02

  Emulsion paints {including aerosols} · CPC title

• C09D7/66

  characterised by particle size · CPC title

• C08J2367/02

  Polyesters derived from dicarboxylic acids and dihydroxy compounds; (C08J2367/06 takes precedence) · CPC title