Abstract
For the resin finishing of cellulosic fabrics if we use such method for predrying as hot air heating, the heat is supplied by conduction from surface to interior, therefore, the migration of finishing liquor is inevitable. On the other hand, employing the radio heating method so-called dielectric loss we may expect that the migration is prevented and the surface resin decreased. Attempt was made to confirm the above speculation experimentally and the following results are observed:
1. In the case of hot air heating, the migrtion becomes more vigorous with higher pick up percentage, while by the radio heating, it is scarecely influenced wthin the range of pick up 70_??_90%. Therefore the radio heating method lessens the surface resin as compared with that by the hot air heating.
2. On the relation between solid concentration of finishing bath and resin migration, both heating methods show the opposite tendency to each other.
