GB1408070A - Method of reversing a metal image - Google Patents

Method of reversing a metal image

Info

Publication number
GB1408070A
GB1408070A GB4136973A GB4136973A GB1408070A GB 1408070 A GB1408070 A GB 1408070A GB 4136973 A GB4136973 A GB 4136973A GB 4136973 A GB4136973 A GB 4136973A GB 1408070 A GB1408070 A GB 1408070A
Authority
GB
United Kingdom
Prior art keywords
sulphate
optionally
image
metal
acid
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
GB4136973A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB1408070A publication Critical patent/GB1408070A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/52—Compositions containing diazo compounds as photosensitive substances
    • G03C1/62—Metal compounds reducible to metal
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
    • H05K3/105—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by conversion of non-conductive material on or in the support into conductive material, e.g. by using an energy beam
    • H05K3/106—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by conversion of non-conductive material on or in the support into conductive material, e.g. by using an energy beam by photographic methods

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)

Abstract

1408070 Reversal processing to produce metal images PHILIPS GLOEILAMPENFABRIEKEN N V 3 Sept 1973 [6 Sept 1972] 41369/73 Heading G2C Reversed metal images are produced by (i) imagewise exposing a benzene diazosulphide of formula [Add Formula I] on a support, (ii) contacting the exposed material in the presence of moisture with mercurous and optionally silver ions to form a latent image, (iii) optionally physically developing the latent image, (iv) bleaching the latent or visible metal image with an oxidant before or after uniform exposure and (v) repeating steps (ii) and (iii) to produce a reversed metal image. The bleach may be potassium bichromate/sulphuric acid or sodium hydrogen sulphate, potassium ferricyanide/sodium thiosulphate, ceric, sulphate/ nitric acid or ceric sulphate/potassium dichromate/ nitric acid/sulphuric acid. After uniform exposure and bleaching, the material may be treated with an alkaline solution (e.g. pyridine) and optionally with an acid solution.
GB4136973A 1972-09-06 1973-09-03 Method of reversing a metal image Expired GB1408070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7212107A NL7212107A (en) 1972-09-06 1972-09-06

Publications (1)

Publication Number Publication Date
GB1408070A true GB1408070A (en) 1975-10-01

Family

ID=19816883

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4136973A Expired GB1408070A (en) 1972-09-06 1973-09-03 Method of reversing a metal image

Country Status (8)

Country Link
JP (1) JPS5442253B2 (en)
BE (1) BE804450A (en)
CH (1) CH579788A5 (en)
DE (1) DE2341568C3 (en)
FR (1) FR2198176B1 (en)
GB (1) GB1408070A (en)
IT (1) IT993861B (en)
NL (1) NL7212107A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095021A (en) 1973-12-21 1978-06-13 Glaxo Laboratories Limited 3-Carbamoyloxymethyl or N-methyl-carbamoyloxymethyl-7-[2-carboxymethoxyimino-2-(fur-2-yl or thien-2-yl)acetamido]ceph-3-em-4-carboxylic acids and derivatives thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1243338A (en) * 1967-11-21 1971-08-18 Ruberoid Co Ltd Indented sheet material

Also Published As

Publication number Publication date
BE804450A (en) 1974-03-04
IT993861B (en) 1975-09-30
CH579788A5 (en) 1976-09-15
DE2341568C3 (en) 1982-01-14
NL7212107A (en) 1974-03-08
JPS5442253B2 (en) 1979-12-13
FR2198176B1 (en) 1976-06-18
DE2341568A1 (en) 1974-03-14
FR2198176A1 (en) 1974-03-29
DE2341568B2 (en) 1981-05-14
JPS4969139A (en) 1974-07-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee