Ring dyeing
From Wikipedia, the free encyclopedia
Ring dyeing is a type of dyeing fault in which dyes are partially diffused to the interior of fibre. Maximum dyes are stained on to the fibre surface that form layer of dyes on to fibre surface. Thus around fibre a ring like appearance of dye can be viwed cross-sectionally. This ring like dye's layer oppose further dye diffusion.
this problem leads to
- Poor wash fastness of dyed fabric
- Poor rubbing fastness of dyed fabric
& staining related all fastness properties.