Abstract
The effect of the interaction between sodium dodecyl sulfate (SDS) and polyvinyl alcohol (PVA) on soil deposition of polyester fibers in a carbon black containing bath is investigated.
The amount of SDS bound to PVA having different acetate residue content (0.6_??_21.5mol%) is measured by means of equilibrium dialysis. The amount positively depends on the concentration of SDS and the acetate residue content of PVA. While, the degree of soil deposition on polyester fibers also increases with the acetate residue content of PVA. Thus, the binding of SDS onto PVA reduces the anti-soil-deposition effect of PVA.
It is considered that PVA-SDS complex which behaves as an anionic polymer in the soiling bath becomes difficult to adhere to the negatively charged carbon black particle, resulting in the increased degree of soil deposition on polyester fibers.
