Blanket for transferring a paste image from an engraved plate to a substrate

1. A blanket for transferring a paste image from an engraved plate to a substrate, comprising:

a foam;

a supporting layer on the foam; and

a paste transfer layer on the supporting layer,

wherein the paste transfer layer is an inter-penetrating polymer network of silicone rubber and fluoroelastomer,

wherein the silicone rubber and the fluoroelastomer have a volume ratio of 80:20 to 60:40, and the paste image is made of metal particles, polymer binder, and organic solvent.

2. The blanket as claimed in claim 1 , wherein the foam comprises polyurethane.

3. The blanket as claimed in claim 1 , wherein the foam has a thickness of 0.5 mm to 2.0 mm.

4. The blanket as claimed in claim 1 , wherein the foam has a shore A hardness of 20 to 80.

5. The blanket as claimed in claim 1 , wherein the supporting layer comprising polyethylene terephthalate, polyvinyl chloride, polypropylene, polyethylene, polystyrene, polyether ether ketone, polycarbonate, or polyethersulfone.

6. The blanket as claimed in claim 1 , wherein the supporting layer has a thickness of 100 μm to 300 μm.

7. The blanket as claimed in claim 1 , wherein the fluoroelastomer comprising perfluoropolyether with a terminal silicon having vinyl group, perfluoropolyether, or terpolymer composed of vinylidene fluoride having —(CH 2 CF 2 ) x — subunit, hexafluoropropylene having —(CF 2 CF(CF 3 )) y — subunit, and tetrafluoroethylene having —(CF 2 CF 2 ) z — subunit, where x is 30 to 90 mole %, y is 10 to 70 mole %, z is 0 to 34 mole %, and x+y+z=100 mole %.

8. The blanket as claimed in claim 1 , wherein a solvent swelling ratio of the paste transfer layer and a solvent swelling ratio of the silicone rubber have a ratio of 50:100 to 80:100.

9. The blanket as claimed in claim 1 , wherein a surface of the paste transfer layer and water have a contact angle of 100° to 130°.

10. The blanket as claimed in claim 1 , wherein the paste transfer layer has a thickness of 0.5 mm to 1 mm.

11. The blanket as claimed in claim 1 , wherein the paste transfer layer has a surface roughness of 0.05 μm to 0.2 μm.

12. The blanket as claimed in claim 1 , wherein the paste transfer layer has a fluorine content of 2.5 wt % to 50 wt %.

13. The blanket as claimed in claim 1 , further comprising a silicone rubber layer disposed on the paste transfer layer, between the paste transfer layer and the supporting layer, or a combination thereof.

14. The blanket as claimed in claim 13 , wherein the silicone rubber layer has a thickness of 0.5 mm to 1 mm.

15. The blanket as claimed in claim 1 , further comprising an adhesive between the foam and the supporting layer, between the supporting layer and the paste transfer layer, or a combination thereof.

16. The blanket as claimed in claim 1 , wherein the silicone rubber in the inter-penetrating polymer network is cured by addition cure, peroxide cure, or condensation cure.