IP Library Granted Patent US 10,391,518
Granted Patent B2
US 10,391,518 · App. 15/539,662 · Granted Aug 27, 2019

Method for manufacturing transparent pattern print steel plate

Inventors: Jin-Tae Kim (Gwangyang-si, KR); Jong-Sang Kim (Gwangyang-si, KR); Bong-Woo Ha (Gwangyang-si, KR); Yang-Ho Choi (Gwangyang-si, KR); Jung-Hwan Lee (Gwangyang-si, KR); Ha-Na Choi (Gwangyang-si, KR); Jong-Kook Kim (Gwangyang-si, KR)
Assignee: POSCO
B05D3/061B05D3/02B05D3/067B05D3/142B05D7/14B41M5/0058B41M7/0081B05D7/53B05D2202/10B41M5/0047
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Quick Facts
Patent No.
US 10,391,518
App. No.
15/539,662
Granted
Aug 27, 2019
Kind
B2
Abstract

A method of manufacturing a transparent pattern printed steel plate includes forming a printed paint film layer by jetting transparent ink onto at least one surface of a steel plate, and curing the printed paint film layer with ultraviolet light to form a cured printed paint film layer. Further, a method of manufacturing a transparent pattern printed steel plate includes preparing a steel plate having a color painted film layer formed on at least one surface thereof, forming a printed paint film layer by jetting transparent ink onto the color painted film layer, and curing the printed paint film layer to form a cured printed paint film layer.

Claims (25)

1. A method of manufacturing a transparent pattern printed steel plate, comprising:

forming a printed paint film layer by jetting transparent ink onto at least one surface of a steel plate at a rate of 1 kHz to 20 kHz;

curing the printed paint film layer with ultraviolet light to form a cured printed paint film layer; and

after the forming of the printed paint film layer, drying the printed paint film layer at room temperature for a period of time exceeding 0 seconds to 2 seconds or less.

2. The method of claim 1 , further comprising performing preprocessing on a surface of the steel plate with plasma, before the forming of the printed paint film layer.

3. The method of claim 1 , wherein the jetting is performed using inkjet printing or laser printing.

4. The method of claim 1 , wherein the cured printed paint film layer has a thickness of 1 μm to 20 μm, and has a degree of glossiness of 3 to 50, based on 60 degrees.

5. The method of claim 1 , wherein the cured printed paint film layer comprises bubbles having an average diameter of 0.5 μm to 3 μm.

6. The method of claim 1 , wherein the steel plate is a stainless steel plate; an aluminum-plated steel plate; a galvanized steel plate; a zinc alloy plated steel plate; a plated steel plate including cobalt, molybdenum, tungsten, nickel, titanium, aluminum, manganese, iron, magnesium, tin, copper, mixtures thereof, or a dissimilar metal, contained in a plating layer of the plated steel plate; an aluminum alloy plate including silicon, copper magnesium, iron, manganese, titanium, zinc or mixtures thereof, added thereto; a cold-rolled steel plate; or a hot-rolled steel plate.

7. A method of manufacturing a transparent pattern printed steel plate, comprising:

preparing a steel plate having a color painted film layer formed on at least one surface thereof;

forming a printed paint film layer by jetting transparent ink onto the color painted film layer at a rate of 1 kHz to 20 kHz;

curing the printed paint film layer to form a cured printed paint film layer; and

after the forming of the printed paint film layer, drying the printed paint film layer at room temperature for a period of time of 5 seconds or more.

8. The method of claim 7 , further comprising performing preprocessing on a surface of the color painted film layer with plasma, before the forming of the printed paint film layer.

9. The method of claim 7 , wherein the jetting is performed using inkjet printing or laser printing.

10. The method of claim 7 , wherein the color painted film layer has a dried paint film thickness of 1 μm to 30 μm, and has a degree of glossiness of 5 to 90, based on 60 degrees.

11. The method of claim 7 , wherein the cured printed paint film layer has a thickness of 0.5 μm to 30 μm, and has a degree of glossiness of 60 to 110, based on 60 degrees.

12. The method of claim 7 , wherein the steel plate is a stainless steel plate; an aluminum-plated steel plate; a galvanized steel plate; a zinc alloy plated steel plate; a plated steel plate including cobalt, molybdenum, tungsten, nickel, titanium, aluminum, manganese, iron magnesium, tin, copper, mixtures thereof, or a dissimilar metal, contained in a plating layer of the plated steel plate; an aluminum alloy plate including silicon, copper magnesium, iron, manganese, titanium, zinc, or mixtures thereof, added thereto; a cold-rolled steel plate; or a hot-rolled steel plate.

13. The method of claim 1 , wherein the transparent ink is cured within 2 seconds after jetting the transparent ink onto at least one surface of the steel plate.

14. The method of claim 1 , wherein the transparent ink is a mixture of one or more resin components selected from the group consisting of polymer-based, epoxy-based, urethane-based and ester-based acrylate oligomers.

15. The method of claim 1 , wherein the transparent ink is a mixture of one or more resin components selected from the group consisting of polyester, modified polyester and high polymer polyester.

16. The method of claim 7 , wherein the transparent ink is cured within 2 seconds after jetting the transparent ink onto at least one surface of the steel plate.

17. The method of claim 7 , wherein the transparent ink is a mixture of one or more resin components selected from the group consisting of polymer-based, epoxy-based, urethane-based and ester-based acrylate oligomers.

18. The method of claim 1 , wherein the transparent ink is a mixture of one or more resin components selected from the group consisting of polyester, modified polyester and high polymer polyester.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2022
From: POSCO HOLDINGS INC.
To: POSCO CO., LTD
Reel/Frame 061777/0974 →
CHANGE OF NAME Recorded Sep 28, 2022
From: POSCO
To: POSCO HOLDINGS INC.
Reel/Frame 061562/0012 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 24, 2017
From: KIM, JIN-TAE; KIM, JONG-SANG; HA, BONG-WOO; CHOI, YANG-HO; LEE, JUNG-HWAN; CHOI, HA-NA; KIM, JONG-KOOK
To: POSCO
Reel/Frame 043319/0161 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 20, 2017
From: KIM, JIN-TAE; KIM, JONG-SANG; HA, BONG-WOO; CHOI, YANG-HO; LEE, JUNG-HWAN; CHOI, HA-NA; KIM, JONG-KOOK
To: POSCO
Reel/Frame 043279/0431 →
Priority Claims (1)
KR 10-2014-0187637 · Dec 23, 2014 · national
Continuity (1)
Related Publication 20170354991A1 · Dec 14, 2017
Cited By (7)
US 12,529,518 US 12,533,602 US 12,533,603 US 12,533,604 US 12,535,269 US 12,539,355 US 12,571,587