Accurate laboratory dyeing techniques that correlate with bulk processing are essential if cost‐effective coloration processes are to be established. This will result in the ability to utilise successfully blind dyeing techniques, which will assist in giving the desired quick response to the market and ensure that the material is ‘right first time’. The laboratory dyeing activity has often been criticised by the practical dyer and reasons for this are discussed. Methods of improving laboratory accuracy are reviewed together with several recent developments in laboratory automation. The advantages and disadvantages of the latter are considered. Finally an approach to automation, developed by the authors, that is likely to be of value to the smaller dyeing laboratory is presented.

Since the last review o f this subject, few major developments have taken place with laboratory dyeing equipment but incremental improvements have assisted in increasing the accuracy and effectiveness of such equipment. Laboratory automation, however, has become established at various levels of sophistication. This has greatly improved the limits of accuracy that can be imposed on the laboratory dyeing process with a resultant increase in accuracy and reproducibility. Whilst the above developments are reviewed, the opportunity has been taken to discuss state-of-the-art practices in laboratory dyeing.T M Thompson in 'Dyehouse Laboratory Practice' (Bradford: SDC. 1983).J Park and J Shore, Rev. Prog. Coloration, 12 (1982) 1. J Park and J Shore, Rev. Prog. Coloration, 12 (1982) 43.