Jeans, which have a wide share in the clothing market, are very interesting in studying on their raw material cloths.
In this paper, authors have investigated the relationships between twill line of the cloths and twist line of the constituent yarns. As a result it was clarified that the twist and its torque of the constituent yarns, are important factor for the texture of woven cloths.
A photographic projection chart of denim cloths is very effective method to make clear these problems.

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The static frictional force between two specimens of the same fabrics finished with the mixture of the polydimethylsiloxane (DMPS) (with 20, 100, 1, 000 or 10, 000 cs in viscosity) and polymethylhydrogensiloxane (MHPS) was measured to investigate the effect of DMPS and MHPS mixture on the surface characteristic of fabrics.
At a low concentration of finishing solution, DMPS with a high viscosity tended to adhere more strongly to the cotton fabrics than MHPS, but this tendency disappeared as the concentration of finishing solution increased. Though the static frictional force of the fabrics treated with the mixture was found to be intermediate between that of fabrics treated with DMPS and that of fabrics treated with MHPS, the influence of MHPS on the static frictional force was more remarkable than that of DMPS.

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Using Kimono fabrics made of silk fibers soiled with sodium chloride as a model of water soluble stain, the removal effect of the stain from the fabrics by hand spotting with a wet towel and drycleaning with prespotting was investigated experimentally. Results obtained in this study were as follows:
1) In the case of the hand spotting test, the removal of sodium chloride soils in silk fabrics was improved to a certain extent as the water content of a spotting towel increased, but the complete removal of the soil was not achieved on the contrary to our expectations.
2) The sodium chloride removal in silk fabrics was not observed satisfactorily even by the drycleaning using a petroleum solvent, perchloroethylene, trif luorotrichloroethane or 1, 1, 1-trichloroethane with pretreatment by using prespotting agents.
These results were very interesting and gave a noteworthy problem to the drycleaning industry.

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This paper is continued from the previous report concerning the dynamic viscoelastic study on cellulosic fibers finished with resins. This time, it describes the damping of the oscillations to be caused by dispersion of the elastic energy. The damping behavior was observed with the logarithmic decrement for each sample cured under the various thermal conditions.
The results were compared with those described in literatures to know how the thermal reaction proceeded during the curing process and concluded as follows:
(1) The cellulosic fibers treated with resins of urea, melamine, and glyoxal types showed damping peaks originated from methylol groups of celluose and resins before thermal treatment, but these peaks disappeared or shifted to higher temperatures and the logarithmic decrement decreased to form flat shapes with proceeding of the thermosetting reaction.
(2) On the basis of the above facts, it was deduced that the most rapid thermosetting reaction was estimated for the resin of glyoxal type and that of melamine type showed the slowest hardening.
(3) These findings well agreed with the reaction rate constants for each resin reported previously in Part 1.

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