Method and apparatus for moistening textile materials

摘要

Prior to entering the vacuum chamber (D) for steam treatment, the material is actively cooled in a cooling chamber (C). In cases where the initial material temperature is above the ambient temperature, it can be exposed in a passive pre-cooling zone (B) till the temperature has been reduced by at least 1 degree. Also claimed is a conditioning plant including a pre-cooling zone (B), an enclosed refrigerated cooling zone (C) with forced air circulation and a vacuum chamber supplied with steam. Preferred Features: When processing yarns, the bobbins are arranged in batches on bobbin carriers. In the case of cotton, the initial moisture content is 0 to 5 %. Cooling takes place for 20 to 40 minutes at a temperature at least 10 degreesC below ambient. The vacuum chamber is fed with saturated steam at 68 degreesC or below.