抄録
In the previous paper, we studied the ultraviolet ray shielding rate for cotton woven fabrics during the drying process from the high moisture regain. We found that the UVR shielding rate increased with decreasing moisture regain, and it showed a maximum in the drying process. In the present study, the UVR shielding rate was measured for stainless meshes as non-swelling materials and filter papers as unperforated materials in order to clarify the origin of the maximum of the UVR shielding rate for cotton woven fabrics, and ΔL* was measured as see-through property.
The shielding rate of stainless meshes in wet condition was higher than standard condition and that of filter papers in wet condition was lower than standard condition. As the results, it was found that the shielding rate of fabrics decreased because of an increase in fiber swelling, but over a certain higher moisture regain, the shielding rate increased owing to a decrease in water contained in pore of the fabrics. The behavior of ΔL* of fabrics with the moisture was shown by the characteristics of stainless meshes and filter papers.
