GB429792A - Improvements in apparatus for comparing the permanence of colour in pigments, dyes and the like - Google Patents

Improvements in apparatus for comparing the permanence of colour in pigments, dyes and the like

Info

Publication number
GB429792A
GB429792A GB432634A GB432634A GB429792A GB 429792 A GB429792 A GB 429792A GB 432634 A GB432634 A GB 432634A GB 432634 A GB432634 A GB 432634A GB 429792 A GB429792 A GB 429792A
Authority
GB
United Kingdom
Prior art keywords
cell
paint
cells
liquid
ultra
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
GB432634A
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.)
Kelvin Bottomley & Baird Ltd
Original Assignee
Kelvin Bottomley & Baird 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 Kelvin Bottomley & Baird Ltd filed Critical Kelvin Bottomley & Baird Ltd
Priority to GB432634A priority Critical patent/GB429792A/en
Publication of GB429792A publication Critical patent/GB429792A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/004—Investigating resistance of materials to the weather, to corrosion, or to light to light

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

429,792. Testing paints &c. DIGBY, W. P., 6, Queen Anne's Gate, Westminster, KING, F. A., and KELVIN, BOTTOMLEY, & BAIRD, Ltd., 18, Cambridge Street, Glasgow. Feb. 9, 1934, Nos. 4326 and 17731. [Class 97 (i)] The rate of change of colour, or loss of hiding power, of paint varnish, dye, &c., is determined by subjecting an article to which the paint &c., is applied to the action of ultra-violet light and liquid alternately and/or simultaneously, for predetermined periods of time, with or without intervening rest periods. Figs. 1 and 2 show a cell in which the coated &c. article is inserted for testing, consisting of a metal box 1 lined with insulating material and having a window 3 transparent to ultraviolet light. A metal plate 8 coated with the paint &c., is inserted in guides 7 and is provided with a terminal 9. A number of graphite rods 4 connected by clamps 5 and provided with a terminal 6 are also inserted in the cell. Liquid inlet, outlet, and overflow connections 10, 11, 12 are provided so that an electrolyte such as tap water, sea water, &c., can be admitted to or drained from the cell as desired. The rods 4 and plate 8 with the liquid form a voltaic couple, so that a voltmeter connected to the terminals 6, 9 gives a reading which depends on the condition of the layer and can be plotted against time to enable the rate of loss of hiding power &c., to be determined. A number of cells may be arranged round a source of ultra-violet radiation, such as an arc lamp, a selector switch being provided so that any cell can be connected to the measuring instrument. An annular tank containing liquid surrounds the cells and is connected to the several cells by piping.
GB432634A 1934-02-09 1934-02-09 Improvements in apparatus for comparing the permanence of colour in pigments, dyes and the like Expired GB429792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB432634A GB429792A (en) 1934-02-09 1934-02-09 Improvements in apparatus for comparing the permanence of colour in pigments, dyes and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB432634A GB429792A (en) 1934-02-09 1934-02-09 Improvements in apparatus for comparing the permanence of colour in pigments, dyes and the like

Publications (1)

Publication Number Publication Date
GB429792A true GB429792A (en) 1935-06-06

Family

ID=9775047

Family Applications (1)

Application Number Title Priority Date Filing Date
GB432634A Expired GB429792A (en) 1934-02-09 1934-02-09 Improvements in apparatus for comparing the permanence of colour in pigments, dyes and the like

Country Status (1)

Country Link
GB (1) GB429792A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973340C (en) * 1953-11-07 1960-01-28 Quarzlampen Gmbh Device for determining the lightfastness of paints and textiles, in particular with a noble gas high pressure lamp
FR2466769A1 (en) * 1979-10-04 1981-04-10 Original Hanau Heraeus Gmbh METHOD FOR MEASURING THE PHOTOCHEMICAL ACTIVITY OF PIGMENTS
EP0289436A2 (en) * 1987-04-28 1988-11-02 Universite De Clermont Ii Laboratoire De Photochimie Device for the accelerated aging of materials containing polymers by optical radiation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973340C (en) * 1953-11-07 1960-01-28 Quarzlampen Gmbh Device for determining the lightfastness of paints and textiles, in particular with a noble gas high pressure lamp
FR2466769A1 (en) * 1979-10-04 1981-04-10 Original Hanau Heraeus Gmbh METHOD FOR MEASURING THE PHOTOCHEMICAL ACTIVITY OF PIGMENTS
EP0289436A2 (en) * 1987-04-28 1988-11-02 Universite De Clermont Ii Laboratoire De Photochimie Device for the accelerated aging of materials containing polymers by optical radiation
FR2614699A1 (en) * 1987-04-28 1988-11-04 Cezeaux Labo Photochimie Ens U DEVICE FOR ACCELERATED PHOTOVEMENTION OF MATERIALS CONTAINING POLYMERIC MATERIALS
EP0289436A3 (en) * 1987-04-28 1989-09-13 Universite De Clermont Ii Laboratoire De Photochimie Circuit for the accelerated aging of materials containing polymers by optical radiation

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