ビニロンの樹脂加工に関する研究

第1報　膨潤による樹脂加工効果について

抄録

It is a well-known fact that vinylon is swelled or solved by piridine, nitro-benzen, phenol, cresol and so on.
Utelizing this nature of vinylon, phenol and others are used for increasing the penetration of dyes.
The degree of swelling and the decrease of elongation and strength in vinylon is investigated by using phenol as a swelling agent, (vinylon blended fabric of equal parts of vinylon and viscose spun rayon, and viscose spun rayon fabric are used and then vinylon is applied to a conventional urea-formaldehyde resin procession to observe the effect, which is found satisfactory, in accordance with a presumption that the small chinks in the skin-stratum of vinylon will be enlarged by this swelling agent and that the resin solution penetrating through the chinks will cause condensation in the interior of the sponge-stratum.
The results may by summarized as follows:
(a) In the case swelling treated vinylon fabric, the decrease of its strength occurs, hut because of resin finishing the effect is more satisfactory than unswelling vinylon.
(b) Increase of the internal condensation of resin is greater than in unswollen vinylon.
(c) Vinylon and viscose spun rayon fabrics 50% blended is found to be of more practical value than 100% vinylon fabrics.
(d) The case of initial condensed resin finishing shows better results than the uncondensed resin.