No abstract

The differences in clothing microclimates between the right and left half bodies have been studied for the subjects worn in the same or different material clothings on the respective side.Shirts and trousers made of interlock fabric or tricot fabric were sewn, which could be divided into right and left half body pieces. Experiments were conducted for subjects in semi-nude or worn in variations of clothings under two conditions; one was that the subjects kept resting at an ambient temperature being kept constant and at the humidity being increased to a higher level for 50 minutes, and the other was that the subjects exercised for 10 minutes at a constant temperature and a constant humidity. Skin temperatures on six or twelve sites and temperatures and vapor pressures inside and outside the clothings at the back sites were recorded continuously. Oral temperature and weight loss were also measured. When subjects wore the same material clothings on the right and left halves, differences in clothing microclimates between the two halves were observed. These were inferred to reflect the states of the contact and air space between the skin and the clothing on each half body. The differences in heat and water transfers through the clothings between the right and left halves were found to be adequately estimated by a simultaneous comparison for a subject worn in clothings of different materials on each half body.

No abstract

No abstract

Drying properties of regular and modified acrylic fabrics were studied. A modified acrylic fabric has many micropores in the fiber. The infrared analysis indicates that the regular fabrics have almost the same chemical moieties as the modified, whereas their sorptive behaviours are different each other.The measurements for drying processes were carried out in a box at 20°C and 63% R.H. All of drying characteristic curves showed convex upward. In the preceding report, the following characteristic equation (1) was proposed for drying process.The decreasing coefficient, k, was determined by the slope of the following equation (2). k became larger in order of wool, cotton, modified acrylic fabric, nylon, regular acrylic fabric. The k value for the modified acrylic fabrics were nearly same as that for cotton. Plots for the free moisture content versus the reciprocal of the decreasing coefficient also gave a straight line.