Slivers were separated into small fiber assemblies with several separating devices under various conditions, and the sizes of separated fiber assemblies were detected and recorded continuously. The weight distributions of separated fiber assemblies were analyzed using the method for analyzing particle size distribution in fracture process.
The cumulative weight distribution of fiber assemblies is similar to Rosin-Rammler distribution, and the probability density distribution to Weibull distribution p(x), where, p(x)=(β/α)x^β-1e^-(1/α)xβ The effects of separating devices, separating conditions, and the sliver structure on these distributions can be expressed by simple parameters α and β.

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A transient method for measuring the thermal conductivity of a few layers of fabrics placed between a standard sample and a slab heated abruptly to a given temperature is described. The method involves measuring the temperature at the surface of the standard sample in contact with the specimen. The results show good agreement bwtween our method and others. This method is useful for quick measurement of the thermal conductivity of thin materials.

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Effects of temperature, stirring and fabric thickness on washing out caustic soda in cotton fabrics were experimentally studied and theoretically analyzed by the diffusion equation assuming fabric or yarns as homogeneous substance.
Experiment agreed well with the theory, and the reason why hitherto the experiment did not coincide with the theory was discussed. It was found that the contradiction is due to the fact the diffusion coefficient of washed material in fibers differs largely from that in water.
So, we proposed the following theoretical equation: C=T₁^-at+T₂^-βt where C: mean concentration of washed material in a fabric, t: washing time, T₁, T₂, α, β: constants which depend on such factors as initail conditions, diffusion coefficient, fabric properties and washing process.

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