公开(公告)号：AU513815B2

公开(公告)日：1981-01-08

申请号：AU3759178

申请日：1978-06-29

Applicant: MITA INDUSTRIAL CO LTD

Inventor： FUKUDA H ,  MORIKAWA H ,  KAMEZAWA Y ,  AIZAWA T

IPC: G03G5/14 ,  D21H19/00 ,  G03G5/00 ,  G03G5/10

Abstract: A photosensitive paper for electrophotography comprising a paper substrate, an electrophotographic photosensitive layer formed on one surface of the substrate and an electrically conductive coating layer formed on the other surface of the substrate, which electrically conductive coating layer comprises an electrically conductive binder medium and a fine powder of a fluorine resin distributed predominantly in the surface portion of the electrically conductive coating layer, is disclosed. This photosensitive paper is satisfactory in all of the following properties; adaptability to the paper feeding operation, the scratch resistance of the photosensitive layer, the blocking resistance and electric characteristics irrespective of the humidity conditions in the operation atmosphere.

公开(公告)号：US3715213A

公开(公告)日：1973-02-06

申请号：US3715213D

申请日：1970-02-17

Applicant: MITA INDUSTRIAL CO LTD

Inventor： AIZAWA T ,  UEDA Y ,  KAMEZAWA Y ,  NIHYAKUMEN K ,  YOKOYAMA T

IPC: G03C1/52 ,  G03C1/58 ,  G03C5/18

CPC classification number: G03C1/58 ,  G03C1/52

Abstract: A PROCESS FOR THE DIAZO-TYPE MULTICOLOR REPRODUCTION BY WHICH PORTIONS OF A SENSITIVE PAPER CORRESPONDING TO PREDETERMINED PORTIONS OF AN ORIGINAL CAN BE SELECTIVELY COLORED TO DIFFERENT HUES BY DISPOSING A LAYER OF THERMOTRANSFERABLE COUPLER BETWEEN AN ORIGINAL AND DIAZO-PHOTOSENSITIVE PAPER FOLLOWED BY EXPOSURE TO LIGHT AND HEATING OF THE ASSEMBLY. THE LAYER OF THERMOTRANSFERABLE COUPLER IS NOT APPLIED TO THE ENTIRE IMAGE AREA OF THE ORIGINAL AND THE THERMOTRANSFERABLE COUPLER IS FASTER IN COUPLING RATE WITH THE DIAZONIUM SALT UNDER THE DEVELOPMENT CONDITIONS THAN THE BASIC COLOR COUPLER OF THE PHOTOSENSITIVE PAPER OR DEVELOPING SOLUTION.

公开(公告)号：US3781208A

公开(公告)日：1973-12-25

申请号：US3781208D

申请日：1970-04-28

Applicant: MITA INDUSTRIAL CO LTD

Inventor： UEDA Y ,  KAMEZAWA Y ,  AIZAWA T ,  IKEDA T

IPC: G03G9/09 ,  G03G9/12 ,  G03G9/04

CPC classification number: G03G9/091 ,  G03G9/122

Abstract: A LIQUID DEVELOPER COMPRISING A DISPERSION OF A DYE OR PIGMENT HAVING A LONG CHAIN ALKYL GROUP IN THE MOLECULE STRUCTURE IN A LIQUID HYDROCARBON. THE LIQUID DEVELOPER FOR ELECTROPHOTOGRAPHY IS EXCELLENT IN DISPERSIBILITY OF THE IMAGE-FORMING DYE OR PIGMENT PARTICLES, UNIFORMITY IN CHARGE POLARITY, STORAGE STABILITY, DISTINCT-IMAGE FORMING ABILITY AND IMAGE-FIXING PROPERTY, AND SUCH LIQUID DEVELOPER CAN BE PREPARED WITHOUT AID OF CONVENTIONAL MODIFIERS SUCH AS CONTROL AGENTS, DISPERSING AGENTS AND FIXING AGENTS.

公开(公告)号：US3725066A

公开(公告)日：1973-04-03

申请号：US3725066D

申请日：1970-08-31

Applicant: MITA INDUSTRIAL CO LTD

Inventor： NIHYAKUMEN K ,  AIZAWA T ,  UEDA Y ,  KAMEZAWA Y ,  KOUCHI T ,  YOKOYAMA T

IPC: G03C5/18 ,  G03C1/58 ,  G03C7/46 ,  G03C5/34

CPC classification number: G03C7/46 ,  G03C1/58

Abstract: A COLORING MATERIAL IN USE FOR THE DIAZO-TYPE MULTICOLOR REPRODUCTION WHICH COMPRISES A THERMOVOLATILE OR THERMOSUBLIMATIVE ACID ADDITION SALT OF A THERMOVOLATILE OR THERMOSUBLIMATIVE AZO COUPLING COMPONENT HAVING AN AMINO GROUP, AND A DIAZO-TYPE MULTICOLOR REPRODUCTION PROCESS USING SUCH COLORING MATERIAL.

公开(公告)号：US3824101A

公开(公告)日：1974-07-16

申请号：US16606171

申请日：1971-07-26

Applicant: MITA INDUSTRIAL CO LTD

Inventor： NIHYAKUMEN K ,  AIZAWA T ,  YOKOYAMA T ,  KAMEZAWA Y

IPC: B41M5/323 ,  B41M5/48 ,  G03C1/52 ,  G03C5/18 ,  G03C1/58

CPC classification number: B41M5/48 ,  G03C1/52

Abstract: A PROCESS FOR THE DIAZO-TYPE MULTICOLOR REPRODUCTION WHICH COMPRISES CONDUCTING THE STEPS OF (A) EXPOSING TO LIGHT A DIAZO-TYPE PHOTOSENSITIVE MATERIAL CONTAINING AT LEAST ONE DIAZONIUM SALT THROUGH A TRANSPARENT OR SEMITRANSPARENT ORIGINAL ON PEDETERMINED PORTIONS OF THE BACK SURFACE OF WHICH IS APPLIED AT LEAST ONE LAYER CONTAINING A THERMOVOLATILE OR THERMOSUBLIMATIVE DYESTUFF OR PIGMENT AND (B) HEATING THE ASSEMBLY OF THE ORIGINAL AND THE PHOTOSENSITIVE MATERIAL IN A MANNER SUCH THAT THE

TREATED BACK SURFACE OF THE ORIGINAL WILL BE IN A FACE-TOFACE CONTACT WITH THE PHOTOSENSITIVE LAYER OF THE PHOTOSENSITIVE MATERIAL, THE STEPS (A) AND (B) BEING CARRIED OUT COINCIDENTALLY OR IN AN ORDER OF (A) TO (B) OR (B) TO (A), AND THEN DEVELOPING THE EXPOSED PHOTOSENSITIVE MATERIAL IN THE PRESENCE OF A COUPLER.

公开(公告)号：US3820996A

公开(公告)日：1974-06-28

申请号：US27507172

申请日：1972-07-25

Applicant: MITA INDUSTRIAL CO LTD

Inventor： NIHYAKUMEN K ,  YOKOYAMA T ,  KAMEZAWA Y ,  AIZAWA T

IPC: G03C1/61 ,  G03C5/34

CPC classification number: G03C1/61

Abstract: A process for development of two-component diazotype photosensitive materials comprising exposing image-wise to light a photosensitive material having a two-component diazotype photosensitive layer comprising a photosensitive diazonium salt, a coupler capable of coupling with said diazonium salt and an acidic stabilizer, applying a small amount of an activating liquor to the photosensitive layer of the exposed photosensitive material and thereafter heating the activating liquor-applied photosensitive material according to need, said activating liquor being a solution or dispersion of a carboxylic acid salt selected from the group consisting of alkali metal carboxylates, alkaline earth metal carboxylates and mixtures thereof.