Claims
- 1. A color proofing foil with improved developability comprising a sustantially transparent polmeric base sheet having a thin coating of a light sensitive composition adhered to a surface thereof, said light sensitive composition comprising a mixture of:
- (a) a colorant;
- (b) an organic light sensitive material; and
- (c) an anionic surfactant which is the reaction product of about one mole of P.sub.2 O.sub.5 with about 2 to 4.5 moles of an alkylene condensation product of at least about one mole of oxide having 2-4 carbon atoms with one mole of a compound contaning about 6 to 150 carbon atoms and a reactive hydrogen atom and selected from the group consisting of phenol, alkyl phenols, aliphatic alcohols, fatty acids, fatty amines, fatty amides, rosin amines, long chain sulfonamides, long chain-substituted aryl sulfonamides, and high molecular weight mercaptans, said reaction product being prepared under substantially anhydrous conditions and at a temperature below about 110.degree. C. down to about room temperature, the amount of said surfactant being sufficient to improve developability of said color proofing foil.
- 2. The color proofing foil of claim 1 where said alkylene oxide has two carbon atoms.
- 3. The color proofing foil of claim 2 where said anionic surfactant has the formula selected from those consisting of ##STR2## and mixtures thereof, where R is alkyl or alkylaryl
- n is 1-32
- 4. The color proofing foil of claim 1 wherein said surfactant has a specific gravity within the range of 1.00 to 1.40 at 25.degree. C., a pour point, ASTM, within the range of <0.degree. C. to 30.degree. C., and an acid number within the range of 30 to 400 determined as mg of KOH per gram of product to the first inflection point (pH 5-5.5).
- 5. The color proofing foil of claim 2 wherein the surfactant has a specific gravity within the range of 1.04 to 1.25 at 25.degree. C., a pour point, ASTM, within the range of <0.degree. C. to 30.degree. C., and an acid number within the range of 55 to 120 determined as mg of KOH per gram of product to the first inflection point (pH 5-5.5).
- 6. The color proofing foil of claim 1 wherein said light sensitive composition contains 0.5% to 60% by weight of surfactant, and effective amounts of colorant and light sensitive materials.
- 7. The color proofing foil of claim 1 wherein said base sheet has a substantially uniform thickness in the range of about 1 to 5 mils and said coating has a substantially uniform thickness in the range of about 0.1 micron to about 10 microns.
- 8. The color proofing foil of claim 3, wherein said organic light sensitive material is positive acting and wherein said anionic surfactant is present in an amount sufficient to increase exposure speed.
- 9. The color proofing foil of claim 3, wherein said organic light sensitive material is negative acting and wherein said anionic surfactant is present in an amount sufficient to increase development speed.
- 10. The color proofing foil of claim 9, wherein said organic light sensitive material is selected from the group consisting of diazonium compound and photopolymers.
- 11. The color proofing foil of claim 10 wherein the light sensitive material is a diazonium salt sensitizer.
- 12. The color proofing foil of claim 10, wherein the light sensitive material is a photopolymer.
- 13. The color proofing foil of claim 8, wherein said organic light sensitive material is selected from the group consisting of o-quinone diazides and a material comprising a compound:
- (1) which splits off an acid upon irradiation and a compound
- (2) having at least one group selected from the group consisting of a carboxylic acid amide acetal group, which composition upon irradiation forms an exposure product having a higher solubility in a liquid developer than the non-irradiated composition.
- 14. The color proofing foil of claim 13 wherein the light sensitive material comprises a compound (1) which splits off an acid upon irradiation and a compound (2) having at least one group selected from the group consisting of carboxylic ortho acid ester group and a carboxylic acid amide acetal group, which composition, upon irradiation, forms an exposure product having a higher solubility in a liquid developer than the non-irradiated composition.
- 15. The color proofing foil of claim 13, wherein the light sensitive material is an o-quinone diazide sensitizer.
- 16. The color proofing foil of claim 8 or 9 wherein said organic light sensitive material contains 0.5% to 60% of surfactant.
Parent Case Info
This application is a continuation-in-part of Ser. No. 045468, filed June 1, 1979, now abandoned.
US Referenced Citations (17)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
45468 |
Jun 1979 |
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