On the Treatment of Rayons with Synthetic Resins by Means of an Improved Method. (XVII) The Special Core-Resin Treatment Prior to Dyeing with Some Functional Finish Which may be Followed by Mechanical One (III). Dyeing and Functional Finish After Peeling off the First Outer and Skin layer Resin

摘要

In continuation of the foregoing paper of this series (XVl) the present one deals with thefunctional dyeing as well as the second resin finish intended for the outer layer upon thefiber，which had been core-resin treated and then peeled off the unavailing first resin on theskin and outer layers in order to give the place for the dye and the second resin.1t was found that the fiber as treated above，properly choosing the dye and the secondresin， showed to have a good balance with reference to the properties in compressionalresilience， knot strength， and 1ight fastness of the dyeing. The present method in view isconsidered to be advantageous in that the fiber can be core-resin treated in white state intow form (or in any other form also)， so that it can be processed on the part of the makerand be stocked， and then can be dyed at any stage before the end product on the part ofthe spinner or finisher as required， say， in staple， yarn or fabric state