Pigmented PVC based graphics films
Multilayer graphics products are described. The graphics products include a polyvinyl chloride film layer, an adhesive layer on one face of the film layer, and a polyurethane layer on another oppositely directed face of the film layer. Also described are methods of producing the multilayer graphics products.
1. A graphics product comprising:
a film layer, the film defining a first face and a second face oppositely directed from the first face;
a layer of adhesive disposed on the first face of the film layer;
a layer of flexible transparent polyurethane disposed on and immediately adjacent to the second face of the film layer;
a barrier layer disposed between the film layer and the layer of adhesive;
wherein the flexible transparent polyurethane serves as substrate and the film layer is casted on the flexible transparent polyurethane;
wherein the polyurethane is an aliphatic polycaprolactone thermoplastic polyurethane;
wherein the film layer comprises (i) pigment or pigment dispersion, (ii) copolymer or copolymer dispersion, and (iii) polyvinyl chloride (PVC) or a PVC dispersion;
wherein each of the film layer, the layer of adhesive, the layer of flexible transparent polyurethane, and the barrier layer has thickness from 0.5 mils to 1.5 mils;
wherein the graphics product exhibits a peak tensile load of at least 11.0 lbf/inch;
wherein the graphics product exhibits an elongation greater than 170%;
wherein the graphics product exhibits a modulus within a range of from 52,000 psi to 63,000 psi; and
wherein the graphics product is free of adhesive between the layer of flexible transparent polyurethane and the second face of the film layer.
2. The graphics product of claim 1 wherein the adhesive disposed on the first face of the film layer is a pressure sensitive adhesive.
3. The graphics product of claim 1 wherein the film layer comprises from 10 wt % to 35 wt % of the pigment.
4. The graphics product of claim 1 wherein the film layer comprises 10 wt % to 20 wt % of the copolymer.
5. The graphics product of claim 1 wherein the film layer comprises 50 wt % to 75 wt % of the polyvinyl chloride.
6. The graphics product of claim 1 wherein the barrier layer comprises at least one agent to impart opacity to the barrier layer.
7. The graphics product of claim 1 wherein the film layer is transparent.
8. The graphics product of claim 1 wherein the adhesive is a repositionable pressure sensitive adhesive.
9. The graphics product of claim 1 wherein the adhesive is a non-permanent acrylic adhesive.
10. The graphics product of claim 1 wherein the layer of flexible transparent polyurethane is free of polyvinyl chloride.
11. The graphics product of claim 1 wherein the layer of adhesive defines an air egress pattern.
12. The graphics product of claim 1 wherein the adhesive layer includes at least one of (i) microparticles at least partially projecting outward from a face of the adhesive layer, and (ii) repositionable forms projecting outward from a face of the adhesive layer.