Claims
- 1. A method for manufacturing a colored or non-colored metal coil, comprising the steps of subjecting a metal coil, pretreated for coating, to an electrodepositing coating with a water-soluble or water-dispersable resin which does not contain unsaturated carbon bonds (C.dbd.C) polymerizable with electron beams, at a voltage of less than 100 V, for less than 10 seconds, to form a primer coating on the metal coil, water-washing and air-drying the primer coating, them immediately, without curing the primer coating, non-electrolytically coating it with an organic solvent-soluble or monomer-soluble type paint containing unsaturated carbon bonds (C.dbd.C) polymerizable with electron beams, as a finishing paint, and then electron beaming it to form a polymerized coating thereon.
- 2. A method according to claim 1 wherein the coil produced is a colored painted coil.
- 3. A method according to claim 1 wherein the coil produced is a non-colored painted coil.
- 4. A method for manufacturing a colored or non-colored metal coil, comprising the steps of subjecting a metal coil, pretreated for coating, to an electrodepositing coating with a water-soluble or water-dispersable resin, which does not contain unsaturated carbon bonds (C.dbd.C) polymerizable with electron beams, at a voltage of less than 100 V, for less than 10 seconds, to form a primer coating, on the metal coil, then immediately, without curing the primer coating, non-electrolytically coating it with an organic solvent-soluble or monomer-soluble type paint containing unsaturated carbon bonds (C.dbd.C) polymerizable with electron beams, as a finishing paint and then electron beaming it to form a polymerized coating and simultaneously heating and baking it to increase the affinity between the two coats.
- 5. A method according to claim 4 wherein the coil product is a color painted coil.
- 6. A method according to claim 4 wherein the coil produced is a non-colored painted coil.
Priority Claims (1)
Number |
Date |
Country |
Kind |
43-48011 |
Jul 1968 |
JA |
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CROSS-REFERENCE TO RELATED APPLICATIONS
The present application is a continuation-in-part of Ser. No. 364,336, filed May 29, 1973, which in turn is a continuation of Ser. No. 839,982, filed July 8, 1969, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3290235 |
Gilchrist |
Dec 1966 |
|
3663383 |
Matsuda et al. |
May 1972 |
|
3679572 |
Smith et al. |
Jul 1972 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
839982 |
Jul 1969 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
364336 |
May 1973 |
|