GB1404636A - Method and apparatus for determining the hiding power of paints - Google Patents

Method and apparatus for determining the hiding power of paints

Info

Publication number
GB1404636A
GB1404636A GB5296572A GB5296572A GB1404636A GB 1404636 A GB1404636 A GB 1404636A GB 5296572 A GB5296572 A GB 5296572A GB 5296572 A GB5296572 A GB 5296572A GB 1404636 A GB1404636 A GB 1404636A
Authority
GB
United Kingdom
Prior art keywords
photo
substrates
determining
nov
openings
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
GB5296572A
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.)
BASF Farben und Fasern AG
Original Assignee
BASF Farben und Fasern 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 BASF Farben und Fasern AG filed Critical BASF Farben und Fasern AG
Publication of GB1404636A publication Critical patent/GB1404636A/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
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26—Oils; Viscous liquids; Paints; Inks

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

1404636 Measuring reflectance photoelectrically BASF FARBEN & FASERN A G 16 Nov 1972 [17 Nov 1971] 52965/72 Heading G1A An apparatus for determining the covering power of paint applied to black and white substrates comprises a casing 1 having two openings 2 located adjacent the respective coated substrates and illuminated by one or more light sources 6, and photo-cells 5 receving light reflected from the respective substrates through openings in boxes 4 which ensure that each photo-cell receives only light reflected from the painted surface through the corresponding opening 2. The photo-resistors 5 are connected in a bridge arrangement whose out-of-balance current indicates the reflectance ratio of the two substrates. Alternatively, the two photo-resistor outputs may be supplied to a differential amplifiers.
GB5296572A 1971-11-17 1972-11-16 Method and apparatus for determining the hiding power of paints Expired GB1404636A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7143315 1971-11-17

Publications (1)

Publication Number Publication Date
GB1404636A true GB1404636A (en) 1975-09-03

Family

ID=6625154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5296572A Expired GB1404636A (en) 1971-11-17 1972-11-16 Method and apparatus for determining the hiding power of paints

Country Status (2)

Country Link
CH (1) CH544309A (en)
GB (1) GB1404636A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000025133A1 (en) * 1998-10-28 2000-05-04 Rhopoint Instrumentation Limited An apparatus for measuring opacity
CN105157643A (en) * 2015-10-22 2015-12-16 廊坊立邦涂料有限公司 Method for detecting polishing trace on painting surface
CN108051569A (en) * 2017-12-26 2018-05-18 奇瑞商用车（安徽）有限公司 A kind of gradient plate and its experimental method based on gradient plate paint covering power
CN113125381A (en) * 2020-01-15 2021-07-16 日涂(上海)涂料研究开发有限公司 Detection method and comparison method for evaluating covering power of wet coating film and special pressing plate device thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19754547B4 (en) * 1997-12-09 2007-04-12 Bayerische Motoren Werke Ag Method for determining the hiding power of a coating
CN116045791B (en) * 2023-04-03 2023-07-21 成都飞机工业（集团）有限责任公司 Metal paint coating thickness assessment method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000025133A1 (en) * 1998-10-28 2000-05-04 Rhopoint Instrumentation Limited An apparatus for measuring opacity
CN105157643A (en) * 2015-10-22 2015-12-16 廊坊立邦涂料有限公司 Method for detecting polishing trace on painting surface
CN108051569A (en) * 2017-12-26 2018-05-18 奇瑞商用车（安徽）有限公司 A kind of gradient plate and its experimental method based on gradient plate paint covering power
CN113125381A (en) * 2020-01-15 2021-07-16 日涂(上海)涂料研究开发有限公司 Detection method and comparison method for evaluating covering power of wet coating film and special pressing plate device thereof

Also Published As

Publication number Publication date
CH544309A (en) 1973-11-15

Similar Documents

Publication Publication Date Title
GB1349085A (en) Apparatus and method for shading colours
EP0501526A3 (en) Fluoroketones as blocked enzyme inhibitors for use in immunoassays
AU6157686A (en) Optical time-domain reflectometry
EP0329889A3 (en) Method and apparatus for analyzing a web of material
IE39867L (en) Measuring the visual spacing of a moving sheet materials
ES438743A1 (en) Dyed lustrous pigments
GB1348979A (en) Infrared technique for measuring a parameter eg thickness of a thin film
GB1405902A (en) Method of and apparatus for measuring size and concentration of particles
GB1362319A (en) Apparatus and method for measuring the width of a strip
GB1421788A (en) Apparatus for and a method of analyzing a sample material
GB1404636A (en) Method and apparatus for determining the hiding power of paints
NO167775C (en) PROCEDURE FOR TRANSCoding COLOR AND COLOR TRANSCODS THAT MAKE THE POSSIBLE AA CONNECT TWO DIFFERENT COLOR DEFINITION EQUIPMENT.
GB1461141A (en) Method for inspecting flaws of material
DE3586339D1 (en) PRODUCTION OF AN IMAGE PATTERN AND REVIEW OF A PIXEL REPRESENTATION OF AN IMAGE.
GB1351434A (en) Method and apparatus for inspecting plated-through printed circuit board holes
ES406348A1 (en) Method and apparatus for recognizing colors
US2261578A (en) Decorated transparent article
AU554728B2 (en) Colour value measurement
GB1408498A (en) Methods of determining concentrations of a component in a gaseous mixture and apparatus therefor
JPS56103343A (en) Method for measuring wavelength dispersion
GB1436638A (en) Method of and device for identifying colours
GB1239898A (en) Improvements in or relating to spray painting apparatus
CA2031969A1 (en) Photographic color copying apparatus
BE819713A (en) IMPROVEMENTS IN PROCESSES AND INSTALLATIONS FOR COATING FABRICS OR SIMILAR SOFT SUBSTRATES
JPS54131182A (en) Press machine abnormality detector

Legal Events

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