Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1998-03-26
2000-02-29
Chea, Thorl
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430257, 430258, 430260, 430261, 430300, 430301, 430351, 430944, G03C 516
Patent
active
060307439
ABSTRACT:
A method for manufacturing a pattern sheet for plate-making capable of easily forming a positive image through the use of a photographic negative film. In this method, as a first step, a negative film with a printed negative image is placed on a surface of a light transmission sheet carrying a photosensitive color-developing layer containing a photosensitive color-developing material which makes a color development in response to light. Further, as a second step, the light is applied thereto from the negative film side after the first step. As a result of the application of the light, a color development takes place in the photosensitive color-developing layer due to the light passing through the negative image, thus causing a positive image to be formed on the surface of the light transmission sheet.
REFERENCES:
patent: 3767394 (1973-10-01), Wiese, Jr. et al.
patent: 3836368 (1974-09-01), Jun et al.
Okumura Takashi
Seo Keiji
Suda Mitsunobu
Sugiyama Koji
Brother Kogyo Kabushiki Kaisha
Chea Thorl
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