Blanket for offset printing and fine pattern manufactured by using the same

Patent metadata

Field	Value
Publication number	US-2016271992-A1
Application number	US-201414442335-A
Country	US
Kind code	A1
Filing date	Aug 1, 2014
Priority date	Aug 1, 2013
Publication date	Sep 22, 2016
Grant date	—

Abstract

Provided are a blanket for offset printing and a fine pattern manufactured by using the same.

First claim

1 . A blanket for offset printing, comprising:
a cushion layer; a support layer provided on the cushion layer; and a printing layer provided on the support layer, wherein the surface tackiness of the printing layer is 7 gf or more and 20 gf or less.

2 . The blanket for offset printing of claim 1 , wherein the surface tackiness of the printing layer is an average value of values measured three times by using a ball tack test method in which a stainless spherical probe having a diameter of 1 inch is maintained for 30 seconds with a weight of 1000 g on the surface of the printing layer having a thickness of 400 μm under an atmosphere of 22° C. and relative humidity of 50%.

3 . The blanket for offset printing of claim 1 , wherein shore A hardness of the printing layer is 20 or more and 70 or less.

4 . The blanket for offset printing of claim 1 , wherein the printing layer includes polydimethylsiloxane (PDMS).

5 . The blanket for offset printing of claim 4 , wherein the printing layer further includes a resin, a catalyst, a cross-linker, and an inhibitor.

6 . The blanket for offset printing of claim 1 , wherein the support layer is made of polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene, polypropylene, a copper plate, or an SUS foil.

7 . The blanket for offset printing of claim 1 , wherein the support layer includes an urethane-based compound coated on polyethylene terephthalate (PET).

8 . The blanket for offset printing of claim 1 , wherein the thickness of the support layer is 50 μm or more and 450 μm or less.

9 . The blanket for offset printing of claim 1 , wherein the thickness of the printing layer is 100 μm or more and 800 μm or less.

10 . The blanket for offset printing of claim 1 , wherein the thickness of the cushion layer is 450 μm or more and 2,000 μm or less.

11 . The blanket for offset printing of claim 1 , further comprising:
primer layers among the cushion layer, the support layer, and the printing layer, respectively.

12 . The blanket for offset printing of claim 1 , wherein the total thickness of the blanket for offset printing is 0.6 μm or more and 2.45 mm or less.

13 . A printing roll including the blanket for offset printing of claim 1 , which covers a periphery of a roll type support.

14 . A fine pattern having a line width of 1 μm or more and 5 μm or less formed by using the blanket for offset printing of claim 1 .

Assignees

• Lg Chemical Ltd

Inventors

• Koo Beom Mo
• Lee Kun Seok
• Lee Seung Heon
• Son Yong Goo
• Kim Jooyeon

Classifications

• B41N10/04 Primary

  multi-layer · CPC title

• B41N10/02 Primary

  Blanket structure · CPC title

• B41N2210/12

  characterised by non-macromolecular organic compounds · CPC title

• B41N2210/04

  Intermediate layers · CPC title

• B41N2210/14

  characterised by macromolecular organic compounds · CPC title