GB1063694A - Improvements in or relating to intensifying metal nuclear images - Google Patents

Improvements in or relating to intensifying metal nuclear images

Info

Publication number
GB1063694A
GB1063694A GB3594463A GB3594463A GB1063694A GB 1063694 A GB1063694 A GB 1063694A GB 3594463 A GB3594463 A GB 3594463A GB 3594463 A GB3594463 A GB 3594463A GB 1063694 A GB1063694 A GB 1063694A
Authority
GB
United Kingdom
Prior art keywords
developer
compound
ferrous
mols
litre
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
GB3594463A
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 GB1063694A publication Critical patent/GB1063694A/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
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/58—Processes for obtaining metallic images by vapour deposition or physical development

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

1,063,694. Photographic physical developers. N. V. PHILIPS GLOEILAMPENFABRIEKEN. Sept. 12, 1963 [Sept. 14, 1962], No. 35944/63. Heading G2C. An acid-reacting physical developer for latent metal nuclear images comprises an ionic surface active compound, more than 0À006 mols/litre of a silver compound, more than 0À05 mols/litre of a ferrous compound and a ferric compound in such concentration that the activity and/or life of the developer is increased compared with a reference developer of the composition: - 0À05 mols/litre of ferrous sulphate, 0À005 mols/litre of ferric nitrate, 0À14 mols/litre of citric acid, 0À006 mols/litre of silver nitrate and the same surface active compound in the same amount; the activity and life of the developer being at least equal to the reference developer. The ferrous compound may be ferrous sulphate or ferrous ammonium sulphate and the ferric compound may be ferric nitrate. The developers may comprise citric, oxalic, malonic, tartaric or lactic acid or ethylene diamine tetracetic acid. When certain acids are present (such as citric or oxalic acids) which reduce ferric compounds to ferrous compounds in ultraviolet light, the developer may be compounded with excess ferric compound but no ferrous compound, and then exposed to ultraviolet radiation before use to give a developer according to the invention. The developer may contain a thickening agent such as gum tragacanth and be applied as a paste to the image to be developed. When the metal nuclear image is obtained in a secondary reaction, e. g. by treating an exposed sheet, sensitized with an aqueous solution of o-methoxy-benzene diazosulphonate and cadmium lactate, with an aqueous solution of mercurous nitrate and silver nitrate, the mercurous nitrate may be incorporated into the developer according to the invention and both the secondary treatment and physical development effected in a single step.
GB3594463A 1962-09-14 1963-09-12 Improvements in or relating to intensifying metal nuclear images Expired GB1063694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL283263 1962-09-14

Publications (1)

Publication Number Publication Date
GB1063694A true GB1063694A (en) 1967-03-30

Family

ID=19754112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3594463A Expired GB1063694A (en) 1962-09-14 1963-09-12 Improvements in or relating to intensifying metal nuclear images

Country Status (10)

Country Link
JP (1) JPS5125735B1 (en)
AT (1) AT251417B (en)
BE (1) BE637398A (en)
CH (1) CH456342A (en)
DE (1) DE1216685B (en)
DK (1) DK115025B (en)
ES (1) ES291594A1 (en)
GB (1) GB1063694A (en)
NL (1) NL283263A (en)
SE (1) SE316680B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1265578B (en) * 1965-06-04 1968-04-04 Kalle Ag Process for producing positive images
DE19947650A1 (en) * 1999-10-04 2001-04-05 Thomas Finsterwalder Harness for paraglide pilot has inner end of leg strap connected directly by loop or ring to one connecting member and not via chest strap or main support strap
CN110850689A (en) * 2019-11-18 2020-02-28 珠海茂逸复印机耗材有限公司 Self-degradation developer and preparation method thereof

Also Published As

Publication number Publication date
DE1216685B (en) 1966-05-12
DK115025B (en) 1969-08-25
AT251417B (en) 1967-01-10
JPS5125735B1 (en) 1976-08-02
NL283263A (en)
CH456342A (en) 1968-07-15
ES291594A1 (en) 1964-03-01
SE316680B (en) 1969-10-27
BE637398A (en)

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