The isothermal dyeing of PET (RSD process), as a highly interesting alternative to the conventional working method with regard to technology and economy, is described.

Some recent developments in environment-friendly dyes,auxiliaries and new dyeing technologies are outlined,bionics dyeing,supercritical carbon dioxide fluid dyeing,shorter circle dyeing,environment-friendly reactive dyeing,electrochemistry dyeing,ultrasound dyeing,microwave dyeing,low temperature plasma dyeing and other some new dyeing techniques were mainly introduced.

Primary investigation of the low temperature dyeing process of wool based on urea;

Technology and mechanism of low temperature dyeing for cashmere fibers;

Optimization of wool low temperature dyeing with hydrogen peroxide/thiourea redox system;

A automatic computer inspection system for dyeing temperature is developed in this article which is easy and quick to be used.

It is difficult to set up a rigorous model in the control system of dyeing temperature in a mathematical way,for there are serious nonlinearity,time variability and long time-lapse,as the result,it is unlikely to get good results using the traditional control method.

Application of cashmere low-temperature dyeing technology;

In order to overcome the above disadvantages,low-temperature dyeing auxiliaries Valsol LTA-N which was made by ICI company (England) was applied to the dyeing process of cashmere fiber.

It is concluded that stretching—setting treatment not only reduces wool diameter and increases wool length, but also brings about low-temperature dyeing of wool.