On the Treatment of Rayons with Synthetic Resins by Means of an Improved Method Especially on crepe Fabrics (III) : On the Effects of the Types of the Applied Resins and the Conditions of the Fabrics to be Processed Before their Impregnation into the Resin Solution, and the Characteristics of the Products as revealed by their Behaviours in Alkali Solutions

On the Effects of the Types of the Applied Resins and the Conditions of the Fabrics to be Processed Before their Impregnation into the Resin Solution， and the Characteristics of the Products as revealed by their Behaviours in Alkali Solutions

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

In continuation of the foregoing paper of this series (XVl) the present one deals with the functional dyeing as well as the second resin finish intended for the outer layer upon the fiber，which had been core-resin treated and then peeled off the unavailing first resin on the skin 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 second resin， showed to have a good balance with reference to the properties in compressional resilience， knot strength， and 1ight fastness of the dyeing. The present method in view is considered to be advantageous in that the fiber can be core-resin treated in white state in tow form (or in any other form also)， so that it can be processed on the part of the maker and be stocked， and then can be dyed at any stage before the end product on the part of the spinner or finisher as required， say， in staple， yarn or fabric stat

On the Treatment of Rayons with Synthetic Resins by Means of an Improved Method.(VIII)：Some Basic Studies on the Properties of Fibers as Revealed by the New Poly-functional wear Tester Already Reported

In one of the foregoing papers on the present title, i.e. in the series(VI), The authors introduced a newly contrived poly-functional, versatile wear tester, together with the data on many kinds of samples and the interpretations thereof. With a view to establishing a more rational evaluation of fivers as to an over-all wear rating if possible, and also obtaining some information which might give suggestions for the improvement of treatment of fivers and fabrics, the authors tried to start with basic studies on the properties of unspun fibers, and especially with those of the behaviours when the fibers are subjected to the so-called “T.N.S. Universal Tester”, the poly-functional versatile one mentioned above. A tensile fatigue tester was also used in parallel with the Tester. Comparisons were made with the results of tasting from 3 different kinds of testing mechanisms , and confirmed the former findings that in the long fiber (the unspunn fiber) the mechanism of breaking the fiber structure is not always the same accrding as, and is particularly related to, the range of the strength of stress absorption of stress by the fiber is quite specifically proper to itself according as the mode of structure of each fiber. These conditions determine each own characteristic curve as tested by the Tester. The cycle n and the strength of (starting) stress f are in the relation N=Ne-Kl2, where N and k are constant. And k is a constant so far the mechanism of breaking the fiber is unchanged. The nature of the meaning of k in the rheological or other physical sense is not well elucidated, but for the time being, under the present testing condition, a soft of theoretical over-all wear capacity can be expressed by the 3 dimentional model, taking ln n, f, 1/k, or ln n, f, f, as factors, and assuming the smallest f, which is practically significant in breaking fivers in common Some practical consideration and discussion concerning discrimination of the results together with some suggestions are also given

On the Treatment of Rayons with Synthetic Resins by Means of an Improved Method (XIX) The Stepwise Study on the “Presiton Process" in the Tow Form on a Semi Industrial Scale (11) From 'Presiton S' to' Presiton SW'

In continuation of the foregoing paper，the present one deals with the next step of treatments in the “Presiton Process" on a semi industrial scale for the present sample， ‘Presiton S'. which is to bring about a thin outer layer of the second resin on the surface of the sample，and also to set the reactive dye at the same time on the peeled and disc10sed surface of the cellulosic fiber. The meaning and the theory of preparing ‘Presiton SW' are herewith given in the introduction. And the optimum conditions of preparing a good ‘Presiton SW' with respect to the used resin and dye are determined. and given as in the followings; The reactive dye ; Procion Brill. Orange GS The dye concentration in the 1st bath; 1 % The dip time 15 minutes The resin COnc. in the 2nd bath ; 4 % Catalyser ;D.A.P.，5 %， o. w. of resin Cure temp. and time ; 130℃ x 5 min