抄録
Kroy-treated wool and dichlorocyanuric acid treated wool (DCCA-treated wool) were selected for wool
fibers shrink-proofed with chlorine. The laundering treatment with domestic neutral detergent including non-ionic
surfactant made the breaking strength and elongation decrease greatly for DCCA-treated wool at initial laundering
treatment, but for Kroy-treated wool as well as intact wool, it made the elongation decrease gradually with increase of
the laundering treatment times. After 5 times laundering treating each wool sample, the value of final elongation became
almost equal in the value of the elongation of each wool sample which is pretreated with isopropanol (IPA) aqueous
solution. The elongation of each wool sample which was pretreated with IPA aqueous solution hardly changed even if
the laundering treatment times increased. These experiments showed that non-ionic surfactant including neutral
detergent acted like IPA aqueous solution to wool fibers, and It was thought that the decrease of the breaking strength
and elongation of wool by the laundering treatment with neutral detergent was dependent on the easiness of the
extraction of the cell membrane complex (CMC) component of wool, which had been deteriorated by the each shrinkproof
process with chlorine, by non-ionic surfactant.
