Browse Prior Art Database

Film Pack and Photographic Process Utilizing Graft Photopolymerization

IP.com Disclosure Number: IPCOM000097819D
Original Publication Date: 1961-Jul-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 23K

Publishing Venue

IBM

Related People

Michaelsen, JD: AUTHOR [+3]

Abstract

The film pack has a sensitized, olefinic polymer layer 1, a viscous vinyl dye monomer layer 2, and a backing layer 3. Ultraviolet light striking layer 1 initiates graft polymerization of monomers in layer 2 to layer 1. After irradiation, layer 3 is stripped from layer 1 and monomer layer 2 is washed from layer 1. The grafted dye remains adhered to layer 1 in irradiated areas.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Film Pack and Photographic Process Utilizing Graft Photopolymerization

The film pack has a sensitized, olefinic polymer layer 1, a viscous vinyl dye monomer layer 2, and a backing layer 3. Ultraviolet light striking layer 1 initiates graft polymerization of monomers in layer 2 to layer 1. After irradiation, layer 3 is stripped from layer 1 and monomer layer 2 is washed from layer 1. The grafted dye remains adhered to layer 1 in irradiated areas.

Layer 1 is rubber sensitized with 8% benzophenone. Acrylyl methyl violet in an aqueous solution with an adhesive such as gelatin or polyvinyl alcohol comprises layer 2. Backing layer 3 is a polyethylene terephthlate film or other film base.

An image density of 0.4 is obtained after a 3 minute irradiation by a 250 W. UV arc-2 lamp, placed 18 inches from the film.

1

Page 2 of 2

2

[This page contains 1 picture or other non-text object]