GB1319626A - Treating liquid for electrophotographic offset master - Google Patents

Treating liquid for electrophotographic offset master

Info

Publication number
GB1319626A
GB1319626A GB2289870A GB1319626DA GB1319626A GB 1319626 A GB1319626 A GB 1319626A GB 2289870 A GB2289870 A GB 2289870A GB 1319626D A GB1319626D A GB 1319626DA GB 1319626 A GB1319626 A GB 1319626A
Authority
GB
United Kingdom
Prior art keywords
salt
offset master
treating liquid
mono
alkali
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2289870A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1319626A publication Critical patent/GB1319626A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • B41N3/08—Damping; Neutralising or similar differentiation treatments for lithographic printing formes; Gumming or finishing solutions, fountain solutions, correction or deletion fluids, or on-press development

Landscapes

  • Printing Plates And Materials Therefor (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Abstract

1319626 Photo-lithography RICOH KK 12 May 1970 [2 June 1969] 22898/70 Headings G2H and G2M [Also in Division B6] An aqueous de-sensitizing liquid for use in an electro-photographic offset master sheet comprising (a) an alkali-metal ferricyanide or ferrocyanide, (b) an alkali-metal salt of a mono- or di-hydrogen phosphate and an ammonium salt of a mono- or di-hydrogen phosphate, (c) an organic or inorganic acid, (d) MgC 2 O 4 , Ni(NO 3 ) 2 , CaCl 2 , Zn 3 (PO 4 ) 2 or CoCl 2 , and (e) EDTA or its di- or tetra-Na salt, or aminotrimethylene phosphonic acid or its penta-Na salt. Reference has been directed by the Comptroller to Specifications 1228937 and 1229052.
GB2289870A 1969-06-02 1970-05-12 Treating liquid for electrophotographic offset master Expired GB1319626A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4247569 1969-06-02

Publications (1)

Publication Number Publication Date
GB1319626A true GB1319626A (en) 1973-06-06

Family

ID=12637070

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2289870A Expired GB1319626A (en) 1969-06-02 1970-05-12 Treating liquid for electrophotographic offset master

Country Status (2)

Country Link
US (1) US3764353A (en)
GB (1) GB1319626A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619277B2 (en) * 1973-10-03 1981-05-06
SE406940B (en) * 1974-04-13 1979-03-05 Collardin Gmbh Gerhard PROCEDURE FOR PREPARING PHOSPHATE COATINGS BY THE IRON AND STEEL SPRAYING METHOD
US4013008A (en) * 1975-03-17 1977-03-22 Dorvin Brown Methods and solutions for improvement of offset printing
US4178179A (en) * 1975-07-30 1979-12-11 Scott Paper Company Electrophotographic master conversion solution
US4116698A (en) * 1975-12-19 1978-09-26 Ricoh Co., Ltd. Ferrocyanate treating liquid for offset master
US4220485A (en) * 1978-12-14 1980-09-02 Calgon Corporation Process for sealing phosphatized metal components
KR100922312B1 (en) 2009-05-11 2009-10-21 충남대학교산학협력단 New treating liquid composition for master print

Also Published As

Publication number Publication date
DE2027047A1 (en) 1970-12-10
US3764353A (en) 1973-10-09
DE2027047B2 (en) 1977-03-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee