Process for manufacture of polymer film graphics

Patent metadata

Field	Value
Publication number	US-9725624-B2
Application number	US-68961707-A
Country	US
Kind code	B2
Filing date	Mar 22, 2007
Priority date	Mar 31, 2006
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

The invention relates to a process for the manufacture of polymer film graphics comprising providing a continuous substrate having a release layer thereon; applying an image layer in the shape of a graphic letter or design to the release layer; depositing an adhesive layer to the image layer and which has the same shape as the image layer graphic letter or design; curing the adhesive and image layers; and winding the polymer film graphics onto rolls. The invention further relates to a polymer film graphic comprising a substrate having an upper surface and a lower surface; a release layer overlying the upper surface of the substrate; an image layer in the shape of a graphic letter or design overlying the release layer; an adhesive layer overlying the image layer, the adhesive layer having the same shape as the image layer graphic letter or design.

First claim

What we claim is:

1. A process for the manufacture of polymer film graphics to eliminate waste film, the process comprising:
providing a continuous substrate having a first and second surface, and having a first release layer on the first surface and a second silicone release layer on and in direct contact with the second surface, wherein the first release coating composition comprises a silicone release composition;
applying an image layer as a reverse image with a digital printer, the image layer comprising a plastisol having a plasticizer in the shape of a graphic letter or design to the first release layer;
applying an ink over part or as part of the image layer;
depositing an adhesive layer onto the image layer, so that the adhesive layer overlies completely and conforms with the image layer and the adhesive layer has the same shape as the image layer graphic letter or design;
curing the adhesive and image layers; and
placing a release liner over the adhesive layer.

2. The process of claim 1 , wherein the substrate comprises a paper, a polymer film, or a combination thereof.

3. The process of claim 1 , wherein the adhesive comprises a pressure sensitive adhesive.

4. The process of claim 3 , wherein the adhesive comprises an acrylic adhesive.

5. The process of claim 3 , wherein the adhesive comprises a hot melt adhesive.

6. The process of claim 1 , wherein the image layer further comprises one or more of an organosol, a polyethylene, a polypropylene, an acrylic, and an epoxy.

7. The process of claim 1 , wherein the image layer comprises a polyvinyl chloride resin and a plasticizer which is provided in an amount of 20 to about 130 parts per hundred of the polyvinyl chloride resin.

8. The process of claim 1 , wherein the adhesive layer and image layer are cured at a temperature within the range of about 2300 to about 420° F. for a period of less than 1 minute.

9. The process of claim 1 further comprising winding the polymer film graphic into a roll.

10. The process of claim 1 , wherein a clear ink is applied over the image layer after the step of applying the image layer and before the step of depositing the adhesive layer.

11. The process of claim 1 , wherein the image layer has a thickness ranging from about 0.001 mils to about 15 mils.

12. The process of claim 1 , wherein the adhesive layer includes pigments.

13. The process of claim 1 , wherein the image layer is formed from a polymeric material.

14. The process of claim 1 , wherein the continuous substrate comprises a polyolefin or a polyester.

15. The process of claim 14 , wherein the polyester is polyethylene terephthalate.

16. The process of claim 1 , wherein the continuous substrate comprises paper.

17. The process of claim 1 , wherein the continuous substrate comprises paper and a polymer film.

18. A process for the manufacture of polymer film graphics comprising:
providing a continuous substrate having a first and second surface, having a first silicone release layer on the first surface, and having a second silicone release layer on and in direct contact with the second surface;
applying an image layer in the shape of a graphic letter or design to and in direct contact with the first release layer;
depositing an adhesive layer onto the image layer, so that the adhesive layer having the same shape as the image layer graphic letter or design; and
curing the adhesive and image layers.

19. The process of claim 18 , wherein the continuous substrate comprises a polyolefin or a polyester.

20. The process of claim 19 , wherein the polyester is polyethylene terephthalate.

Assignees

• Bodwell James
• Roughton Michael W
• Welch David
• Avery Dennison Corp

Inventors

• Bodwell James
• Roughton Michael W
• Welch David

Classifications

• B32B29/06

  specially treated, e.g. surfaced, parchmentised · CPC title

• Y10T428/14

  Layer or component removable to expose adhesive · CPC title

• B32B2307/75

  Printability · CPC title

• B32B2255/26

  Polymeric coating · CPC title

• B32B2255/12

  on paper layer · CPC title