Roll printing machine and method of roll printing using same

Patent metadata

Field	Value
Publication number	US-9492995-B2
Application number	US-201314427903-A
Country	US
Kind code	B2
Filing date	Nov 6, 2013
Priority date	Nov 6, 2012
Publication date	Nov 15, 2016
Grant date	Nov 15, 2016

Abstract

The present application relates to a roll printing apparatus and a roll printing method using the same, and the roll printing apparatus according to the present application comprises a printing roll support, a printing roll, a blanket which is provided on an outer surface of the printing roll, a coater which coats a surface of the blanket with ink, a cliche, and a printing object, in which the printing roll is provided to be fixed to the printing roll support so as to perform rotational motion, and the cliche is conveyed by the rotational motion of the printing roll.

First claim

The invention claimed is:

1. A roll printing apparatus comprising:
a printing roll support, a printing roll, a blanket which is provided on an outer surface of the printing roll, a coater which coats a surface of the blanket with ink, a cliche, and a printing object,
wherein the printing roll is provided to be fixed to the printing roll support so as to perform rotational motion, and the cliche is conveyed by the rotational motion of the printing roll.

2. The roll printing apparatus of claim 1 , wherein a movement speed of the cliche is synchronized by the rotational motion of the printing roll.

3. The roll printing apparatus of claim 1 , further comprising:
an idle roll,
wherein the idle roll is provided at a lower end of the cliche.

4. The roll printing apparatus of claim 3 , wherein the printing object is a flat plate-shaped substrate, and the flat plate-shaped substrate is provided on the idle roll.

5. The roll printing apparatus of claim 1 , further comprising:
a roll-shaped supporting unit which supports the printing object,
wherein the printing object is a film substrate.

6. The roll printing apparatus of claim 5 , further comprising:
a printing object providing unit which continuously provides the film substrate, and a printing object collecting unit which continuously collects the film substrate.

7. The roll printing apparatus of claim 6 , wherein the roll-shaped supporting unit is provided between the printing object providing unit and the printing object collecting unit.

8. The roll printing apparatus of claim 5 , wherein the roll-shaped supporting unit comprises a stationary roll, a freely rotating roll which is provided on an outer surface of the stationary roll, and a porous sheet which is provided on an outer surface of the freely rotating roll.

9. The roll printing apparatus of claim 8 , wherein vacuum holes are provided in the entire region of the freely rotating roll.

10. The roll printing apparatus of claim 8 , wherein vacuum holes is provided in a region of the stationary roll which corresponds to a region with which the film substrate and the printing roll come into contact.

11. The roll printing apparatus of claim 1 , wherein the roll printing apparatus is for reverse offset printing.

12. A roll printing method using the roll printing apparatus of claim 1 .

13. A roll printing method comprising:
1) preparing a printing roll which is provided to be fixed to a printing roll support so as to perform rotational motion, a blanket which is provided on an outer surface of the printing roll, a coater which coats a surface of the blanket with ink, a cliche, an idle roll which is provided at a lower end of the cliche, and a printing object;
2) allowing the printing roll to perform the rotational motion and coating the surface of the blanket with the ink;
3) transferring the ink to the cliche while synchronizing a movement speed of the cliche by the rotational motion of the printing roll having the blanket coated with the ink; and
4) printing the ink, which is not transferred to the cliche and exists on the blanket, onto the printing object.

14. The roll printing method of claim 13 , wherein the printing object is a flat plate-shaped substrate or a film substrate.

15. The roll printing method of claim 13 , wherein 2) the coating of the surface of the blanket with the ink, and 3) the transferring of the ink to the cliche are simultaneously performed.

16. The roll printing method of claim 13 , wherein 3) the transferring of the ink to the cliche, and 4) the printing of the ink onto the printing object are simultaneously performed.

17. The roll printing method of claim 13 , wherein 2) the coating of the surface of the blanket with the ink, 3) the transferring of the ink to the cliche, and 4) the printing of the ink onto the printing object are simultaneously performed.

18. A printed matter printed using the roll printing apparatus of claim 1 .

19. The printed matter of claim 18 , wherein the printed matter comprises at least two types of patterns having different line widths, and a difference in line width between the at least two types of patterns is 15 μm or more.

20. A touch panel comprising the printed matter of claim 18 .

Assignees

• Lg Chemical Ltd

Inventors

• Hwang Ji Young
• Hwang In-Seok
• Park Jeseob

Classifications

• H10P95/00

  Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass · CPC title

• H10W70/098

  Applying pastes or inks, e.g. screen printing (H10W70/095 takes precedence) · CPC title

• Y10T428/24802

  Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] · CPC title

• B41F3/36 Primary

  for intaglio or heliogravure printing (proof-print presses B41F3/28) · CPC title

• B41F3/00 Primary

  Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed · CPC title