公开(公告)号：DE2038242A1

公开(公告)日：1971-03-18

申请号：DE2038242

申请日：1970-07-31

Applicant: MITA INDUSTRIAL CO LTD

Inventor： NIHYKUMEN KOUZI ,  YOKOYAMA TAIZO ,  UEDA YASUO KOBE ,  KAMEZAWA YASUTOKI ,  AIZAWA TATSUO

IPC: G03C5/18 ,  G03C1/58 ,  G03C1/52

Abstract: A process for the diazo-type multicolor reproduction which comprises (A) exposing to light a diazo-type photosensitive material having a photosensitive layer containing at least one diazonium salt (c) and a coupler (b) having a substantially lower rate of coupling with the diazonium salt (c) than that of resorcin, said coupler being present in the photosensitive material in an amount of not greater than 1 mole per mole of said diazonium salt (c), and (B) heating a layer of at least one thermovolatile or thermosublimative coupler (a) disposed in a face-to-face contact with said photosensitive material at a predetermined portion, said steps being carried out coincidentally or in the order of (A) to (B) or (B) to (A), and then developing the exposed photosensitivematerial. photosensitive material.