PROCESS FOR TEXTURING A PLY-TWISTED, CRIMPED, MULTIFILAMENT YARN, METHOD OF ANALYZING THE TEXTURE OF A SURFACE AND A CARPET MADE BY THE PROCESS AND CHARACTERIZED BY THE METHOD

摘要

The present invention relates to a process for texturing a ply-twisted, crimped, multifilament yarn, a yarn made by this process, a carpet made from this multifilament yarn. The present invention also relates to a method of image analysis for analyzing the texture of a surface, and to a saxony-type carpet having a tightly tailored surface texture characterized by this method. The process of texturing a yarn comprises adjusting the temperature and moisture content of the yarn prior to passing the yarn through a stuffer box. The method for analyzing the texture of a surface employs a model based on a second order cooccurrence matrix model which calculates a set of textural parameters for image classification. In one embodiment, the method compares an unknown sample of a saxony-type carpet to a goal sample of a saxony-type carpet having a tightly tailored surface texture to determine whether the unknown sample is such a carpet.