BLANKET FOR TRANSFERRING A PASTE IMAGE FROM ENGRAVED PLATE TO SUBSTRATE
A blanket for transferring a paste image from an engraved plate to a substrate is provided. The blanket includes a foam, a PET layer on the foam, and an paste transfer layer on the PET layer. The blanket has a Tan δ value of 0.05 to 0.13. The foam can be made of polyurethane, polyethylene, nitrile-butadiene rubber, silicone, or a combination thereof. The paste transfer layer can be made of silicone rubber, fluoro rubber, fluorosilicone rubber, a combination thereof, or a multi-layered structure thereof.
1 . A blanket for transferring a paste image from an engraved plate to a substrate, comprising:
a foam;
a PET layer on the foam; and
a paste transfer layer on the PET layer,
wherein the blanket has a Tan δ value of 0.05 to 0.13.
2 . The blanket as claimed in claim 1 , wherein the foam comprises polyurethane, polyethylene, nitrile-butadiene rubber, silicone, or a combination thereof.
3 . The blanket as claimed in claim 2 , wherein the polyurethane, polyethylene, nitrile-butadiene rubber, or silicone has a weight average molecular weight of 2,000 to 1,000,000.
4 . The blanket as claimed in claim 1 , wherein the foam has a thickness of 0.5 mm to 1.5 mm.
5 . The blanket as claimed in claim 1 , wherein the PET layer has a weight average molecular weight of 15000 to 40000.
6 . The blanket as claimed in claim 1 , wherein the PET layer has a thickness of 100 μm to 300 μm.
7 . The blanket as claimed in claim 1 , wherein the paste transfer layer comprises silicone rubber, fluoro rubber, fluorosilicone rubber, a combination thereof, or a multi-layered structure thereof.
8 . The blanket as claimed in claim 1 , wherein the paste transfer layer has a Shore A hardness of 40 to 60.
9 . The blanket as claimed in claim 1 , wherein a surface of the paste transfer layer and water have a contact angle of 105° to 125°.
10 . The blanket as claimed in claim 1 , wherein the paste transfer layer has a thickness of 0.3 mm to 1.5 mm.
11 . The blanket as claimed in claim 1 , further comprising an adhesive between the foam and the PET layer, between the PET layer and the paste transfer layer, or a combination thereof.
12 . The blanket as claimed in claim 1 , wherein the blanket has a Tan δ value of 0.07 to 0.11.
13 . The blanket as claimed in claim 1 , wherein the blanket has a Tan δ value of 0.08 to 0.10.