Pigment & Resin Technology: Volume 1 Issue 5

Comment: Powder coating study

The polymeric powder coating process, with its economic advantage and potential for reduced air pollution, has drawn a great deal of industrial attention. Lack of technical data…

The mechanism of paint seeding

C.M. Hansen, H.C. Klauss

The formation of zinc soaps in paints containing zinc oxide and fatty acids leads to a situation called ‘seeding’. Seeding is the collection of the zinc soaps into particles…

Developments in colorimeters and spectrophotometers

H.G. Mackenzie‐Wintle

With the increasing tightening of quality control standards in all industries, it is only to be expected that those firms whose products depend on colour to a greater or lesser…

Product appearance measurement

Malcolm Lloyd

The most important appearance attribute of a product is undoubtedly colour; however, the overall appearance of the product involves other attributes, including gloss, lustre and…

Development of the Anlab colour system

K. McLaren

Everybody concerned with colour is conscious of a need to arrange colours in a systematic fashion. Ever since the Swedish priest and astrologer Aron Forcius showed in 1611 how…

Attenuated total reflection technique

Dietrich Schmitz

The application of attenuated total reflection (ATR) permits the use of infrared spectroscopy for the analysis of paint films. It utilises the phenomenon of abnormal dispersion…

Recent progress in raw materials

Americus

A German firm has announced several alkyd resins, including a stoving enamel for domestic appliances, automotive finishes and coil coating, a water‐thinnable resin for air‐drying…

Equipment

The ACRF1 single head auger filling machine fills free flowing and semi‐free flowing powders and granules into containers at speeds of up to 200 per minute. Accuracy depends upon…