Transfer foil

• US 4,168,978 A
• Filed: 11/23/1977
• Issued: 09/25/1979
• Est. Priority Date: 11/24/1976
• Status: Expired due to Term

• Current Assignee: Claus Koenig KG
• Original Assignee: Claus Koenig KG
• Inventors: Koenig, Claus
• Primary Examiner(s): Lesmes, George F.
• Assistant Examiner(s): Hess, Bruce H.
• Application Number:
  US05/854,246
• Time in Patent Office: 671 Days
• Field of Search: 96/85, 96/87 R, 96/33, 96/68, 96/75, 427/53, 427/54, 427/147, 427/148, 428/40, 428/199, 428/913, 428/201-204, 428/211
• US Class Current: 430/294
• CPC Class Codes: G03C 11/12 Stripping or transferring intact photographic layers
• CPC Class Codes: Y10S 428/913 Material designed to be responsive to temperature, light, moisture
• CPC Class Codes: Y10S 428/914 Transfer or decalcomania
• CPC Class Codes: Y10T 428/1467 Coloring agent
• CPC Class Codes: Y10T 428/24835 including developable image or soluble portion in coating or impregnation [e.g., safety paper, etc.]

Abstract

Composite foils for producing colored advertising indicia comprise a colored, tacky layer between two release foils, the colored layer being sensitive to light either as being solubilized in exposed areas, these areas being washed away to leave the indicia, or as being insolubilized by exposure, the unexposed areas being washed away.

Claims

1. A colored multilayered structure for producing a pattern comprising:

(a) a light sensitive colored layer comprising a contact adhesive, a coloring agent, and a light sensitive compound;

said colored layer exhibiting upon exposure to light a change with respect to a given solvent from soluble to insoluble in exposed areas but remaining soluble in the same solvent in unexposed areas, the soluble unexposed areas being removable after exposure by washing with said solvent;

(b) a first foil disposed on one surface of said colored layer; and

(c) a second foil disposed on the other surface of said colored layer;

said first and second foils having release characteristics and one of said foils being more readily removable from said colored layer than the other of said foils;

at least one of said foils being transparent.

2. A colored multilayered structure for producing a pattern comprising:

(a) a light sensitive colored layer comprising a contact adhesive, a coloring agent, and a light sensitive compound;

said colored layer exhibiting upon exposure to light a change with respect to a given solvent from insoluble to soluble in exposed areas but remaining insoluble in the same solvent in unexposed areas, the soluble exposed areas being removable after exposure by washing with said solvent;

(b) a first foil disposed on one surface of said colored layer; and

(c) a second foil disposed on the other surface of said colored layer;

said first and second foils having release characteristics and one of said foils being more readily removable from said colored layer than the other of said foils;

at least one of said foils being transparent.

3. The colored multilayered structure of claim 2 wherein said solvent is a developing liquid.