GB1388684A - Coloured sheet material suitable as photographic light filters and leader films - Google Patents

Coloured sheet material suitable as photographic light filters and leader films

Info

Publication number
GB1388684A
GB1388684A GB672671A GB672671A GB1388684A GB 1388684 A GB1388684 A GB 1388684A GB 672671 A GB672671 A GB 672671A GB 672671 A GB672671 A GB 672671A GB 1388684 A GB1388684 A GB 1388684A
Authority
GB
United Kingdom
Prior art keywords
binder
polyethylene terephthalate
dye
light filters
films
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
GB672671A
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.)
Agfa Gevaert NV
Agfa Gevaert AG
Original Assignee
Agfa Gevaert NV
Agfa Gevaert AG
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 Agfa Gevaert NV, Agfa Gevaert AG filed Critical Agfa Gevaert NV
Priority to GB672671A priority Critical patent/GB1388684A/en
Priority to FR7206011A priority patent/FR2128347B3/fr
Priority to BE779643A priority patent/BE779643A/en
Priority to DE19722209957 priority patent/DE2209957A1/en
Publication of GB1388684A publication Critical patent/GB1388684A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • 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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • G03C1/835—Macromolecular substances therefor, e.g. mordants

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Laminated Bodies (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)

Abstract

1388684 Light filters AGFA-GEVAERT 28 Feb 1972 [12 March 1971] 6726/71 Heading B2E [Also in Division G2] A light filter comprises a support of hydrophobic film coated on at least one side with a yellow pyroxolinone dye dispersed in an optionally alkylated melamine-formaldehyde resin binder. The support is a cellulose ester, polystyrol, polycarbonate or a high molecular weight homer polyester e.g. biaxially oriented polyethylene terephthalate. Other polyesters and copolyesters of phthalic, isophthalic, sebacic and adipic acids with ethylene and neopentyl glycol and 1, 4-di (hydroxymethyl) cyclohexane are mentioned. A subbing coating to assist adhesion of the light-absorbing coating may be applied. The material may be used in sun glasses, light filters or photographic binder films. The sub-coating may comprise vinyl chloride/vinylidene chloride/n-butyl acrylate/itaconic acid copolymer optionally containing dispersed silica and be applied as a dispersion. In Examples (1 & 2) polyethylene terephthalate films subcoated, and the dye binder layer applied as a solution, contains phenyl trichlorosilane, (3) one side of a polyethylene terephthalate is film coated similarly to example 1, the reverse side being coated by solution with an antistatic layer comprising styrene/maleic acid monosodium salt copolymer and vinyl chloride/vinyl acetate copolymer, and (4) a cellulose triacetate or polystyrene film is coated directly with a dye/binder solution.
GB672671A 1971-03-12 1971-03-12 Coloured sheet material suitable as photographic light filters and leader films Expired GB1388684A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB672671A GB1388684A (en) 1971-03-12 1971-03-12 Coloured sheet material suitable as photographic light filters and leader films
FR7206011A FR2128347B3 (en) 1971-03-12 1972-02-22
BE779643A BE779643A (en) 1971-03-12 1972-02-22 SHEET MATERIAL FOR USE IN LIGHT FILTERS AND STARTING STRIPS
DE19722209957 DE2209957A1 (en) 1971-03-12 1972-03-02 Scratch-resistant and wet-insensitive, colored sheet materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB672671A GB1388684A (en) 1971-03-12 1971-03-12 Coloured sheet material suitable as photographic light filters and leader films

Publications (1)

Publication Number Publication Date
GB1388684A true GB1388684A (en) 1975-03-26

Family

ID=9819659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB672671A Expired GB1388684A (en) 1971-03-12 1971-03-12 Coloured sheet material suitable as photographic light filters and leader films

Country Status (4)

Country Link
BE (1) BE779643A (en)
DE (1) DE2209957A1 (en)
FR (1) FR2128347B3 (en)
GB (1) GB1388684A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0131473A2 (en) * 1983-07-12 1985-01-16 Kiyoshi Nagai Composite filter and the use of such a filter
GB2552806A (en) * 2016-08-10 2018-02-14 Sumitomo Chemical Co Light filter and sensor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0131473A2 (en) * 1983-07-12 1985-01-16 Kiyoshi Nagai Composite filter and the use of such a filter
EP0131473A3 (en) * 1983-07-12 1987-09-16 Kiyoshi Nagai Composite filter, observation system and filamentary display device
GB2552806A (en) * 2016-08-10 2018-02-14 Sumitomo Chemical Co Light filter and sensor
WO2018029014A1 (en) * 2016-08-10 2018-02-15 Cambridge Display Technology Limited Light filter and sensor
CN109564162A (en) * 2016-08-10 2019-04-02 剑桥显示技术有限公司 Light filtering body and sensor

Also Published As

Publication number Publication date
FR2128347A3 (en) 1972-10-20
BE779643A (en) 1972-08-22
FR2128347B3 (en) 1974-06-07
DE2209957A1 (en) 1972-09-21

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee