Claims
- 1. Apparatus for making a lithographic printing plate which comprises in sequential combination:
- (a) means for exposing to actinic light a lithographic plate having a water soluble light sensitive coating thereon to form an image in said coating;
- (b) means for applying a solvent soluble UV curable material to the imaged plate from paragraph (a);
- (c) means for applying water to the plate from paragraph (b) to remove light sensitive coating and overlying UV curable material in the non-image areas leaving the UV curable material adhered to the image; and
- (d) means for exposing the plate from paragraph (c) to a UV source having an intensity greater than the imaging light means of paragraph (a) which is sufficient to cure the UV material.
- 2. Apparatus of claim 1 which includes means for coating a lithographic plate with a water-soluble, light sensitive material.
- 3. Apparatus of claim 1 wherein the means for exposing is a laser.
- 4. Apparatus for making a lithographic printing plate which comprises:
- (a) means for exposing to actinic light a lithographic plate having a water soluble light sensitive layer thereon to form an image in said layer;
- (b) means for removing the non-image areas of said layer from the exposed plate from paragraph (a);
- (c) means for applying a solvent soluble UV material to the image areas of the plate from paragraph (b); and
- (d) means for exposing the plate to a UV source having an intensity greater than the imaging light means of paragraph (a), said UV source having an intensity sufficient to cure the UV material to form a press-ready plate having a durable, reinforced cured image thereon.
RELATED APPLICATION
This application is a continuation-in-part of copending application Ser. No. 972,561, filed Dec. 22, 1978, now abandoned.
US Referenced Citations (10)
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
972561 |
Dec 1978 |
|