Patents Assigned to AB Bates a/s
  • Process for making color separation negatives and positives for use in multi-color printing
    Patent number: 4241153
    Abstract: Negative and positive films for use in multi-color printing are prepared by a process which utilizes crystals and interstices therebetween in color-separation negatives for multi-color printing without the use of half-tone screens. Exposure through masks of controlled density ranges relative to the color-separation negatives and positives prepared from the color original result in final negatives and positives as well as duplication negatives and positives which can be utilized in the multi-color printing process.
    Type: Grant
    Filed: October 27, 1978
    Date of Patent: December 23, 1980
    Assignee: AB Bates a/s
    Inventor: Vjatsjeslev Rovnjev