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Product Printing. Plate. Thermosensitive. Mask.Belgium. A.

MANUFACTURING See "Patent Claims"
PATENT ASSIGNEE'S COUNTRY Belgium
UPDATE 07.99
PATENT ASSIGNEE This data is not available for free
PATENT CLAIMS Claim 1:
Imaging element for making title plate comprising sequentially on a support having a hydrophilic surface:
(a) Photosensitive layer
(b) Intermediate layer being soluble in aq. medium
(c) Thermosensitive layer (mask) opaque to light for which (a)
has spectral sensitivity & capable of rendered transparent
upon exposure to laser light
Claim 11:
A method for making lithographic printing plate
- Image-wise exposing a imaging element as defined in claim 1
by means of a laser thereby image-wise rendering (c) transpa
rent to light for which (a) has spectral sensitivity
- Overall exposing said obtained imaging element with light for
which (a) has spectral sensitivity
- Developing obtained imaging element thereby removing (b),
(c) & either non-exposed or exposed areas of (a) so as to
leave a ink accepting image of (a) on support
PATENT PHOTOCOPY Available on request

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