This function can accurately simulate the actual production conditions and achieve the required process effect. It is suitable for dyeing samples of various fabrics at room temperature, and can easily add salt, alkali and other auxiliaries in the dyeing process. The normal temperature color tester, which is used for normal temperature dyeing and is extremely convenient to operate, can easily add neutral salt, alkali and other auxiliaries in the dyeing process, and of course, it is also suitable for general cotton bath, soaping and bleaching tests.