Abstract: A core-sheath composite yarn characterized in that a softening point of a core component as measured by thermomechanical analysis of JIS K 7196 is at least 20.degree. C. lower than a softening point of a sheath component, and the core component is formed of a substantially amorphous polymer that does not provide a melting point peak as measured by differential thermal analysis of conducting heating in a nitrogen atmosphere at a rate of temperature rise of 10.degree. C./min, and a fabric obtained by using such a composite yarn. This fabric has an excellent shape stability and an excellent water resistance by heat-setting.

Abstract: This invention relates to a microcapsule having a particle diameter of 2.about.300 .mu.m and comprising a substance acting to improve physiological conditions of human skin, for example, substances exhibiting such effects as skin whitening, aging preventive, humidity preservable, itch suppressive, pain-killing, or antiphlogistic ones, and/or aromatic agents contained within the filmy coating of synthetic high molecular substance. The microcapsule is not broken when making, processing, or laundering the textile structure, but is gradually broken when the textile structure is put on the human body, used for another purpose, or subjected to intentional application of friction or pressure thereto, and sustainedly releases acting substances contained therein.