Method of adjusting conductivity after processing of photographs

• US 6,465,140 B1
• Filed: 05/11/2001
• Issued: 10/15/2002
• Est. Priority Date: 05/11/2001
• Status: Expired due to Fees

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Freedman, Gary S., Majumdar, Debasis, Laney, Thomas M., Aylward, Peter T., Greener, Jehuda
• Primary Examiner(s): Le, Hoa Van
• Application Number:
  US09/853,515
• Time in Patent Office: 522 Days
• Field of Search: 430/30, 430/527
• US Class Current: 430/30
• CPC Class Codes: G03C 1/895 Polyalkylene oxides

Abstract

The invention relates to a method of conductivity control comprising providing a photographic element having a lower surface antistatic layer comprising polyether polymeric antistat, imaging said photographic element, processing said photographic element in aqueous development solutions, and recovering said developed photographic element, wherein the lower surface resistivity of said photographic element attains a value ≧10 log ohm/sq. but <13 log ohms/sq. after processing.

Claims

1. A method of conductivity control comprising providing a photographic element having a lower surface antistatic layer comprising polyether polymeric antistat, imaging said photographic element, processing said photographic element in aqueous development solutions, and recovering said developed photographic element, wherein the lower surface resistivity of said photographic element attains a value of between 10 log ohm/sq. and 13 log ohms/sq. after processing.

2. The method of claim 1 wherein said antistatic layer further comprises a binder polymer.

3. The method of claim 1 wherein said antistatic layer further comprises thermally processable onium salt.

4. The method of claim 1 wherein said photographic element comprises a photographic print material and said lower surface resistivity is less than 13 log ohm/sq. prior to processing and is less than 12 log ohm/sq. after processing.

5. The method of claim 1 wherein said photographic element comprises a photographic film material and said lower surface resistivity is less than 11 log ohm/sq. prior to processing and is less than 12 log ohm/sq. after processing.

6. The method of claim 1 wherein said photographic element is a color print material.

7. The method of claim 1 wherein said photographic element is a color film material.

8. The method of claim 7 further comprising passing said film through the brain of a film projector without brain wrap.