Thermal absorptivity is an indicator of warm and cool feeling of textile materials. An equation based on thermal absorptivity of polyester in solid form, porosity of a fabric, and relative contact area of human skin and fabric surface has been developed to characterize thermal absorptivity of fabric. For verification of suggested model, 15 knitted rib fabrics were produced using 100% polyester yarn and having different surface profile. ALAMBETA semiautomatic non-destructive instrument has been used for measuring the effective thermal absorptivity of knitted rib fabric. It was found that the suggested simple theoretical model exhibits significant agreement with the measured thermal absorptivity values of knitted rib fabric, which endorsed the approach applied.

Soft and clean surface of fabric without any floating fibers is one of the factors important for better marketing of clothing. The most common method for having such clean fabric surface is the removal of protruding (floating) fiber from the surface of the fabric. Many studies have proved that enzymatic treatment, commonly called biopolishing, removes the floating fibers from the surface of fabric and gives a smooth surface to the fabric. This study is an effort to assess and measure the impact of biopolishing of knitted fabric through objective and subjective evaluation on warm-cool feeling of fabric because of change in surface profile of the fabric. For testing purposes, 31 knitted fabric samples of various kinds were produced. Alambeta has been used for measuring thermal absorptivity values of fabric. Thermal absorptivity is an indicator of warm-cool feeling. For subjective evaluation, a group of 30 people were asked to give their opinion about warm-cool feeling. Both subjective and objective assessments confirm that biopolishing has a significant impact on warm-cool feeling. Fabric gives cool feeling after biopolishing. This study explores that clean surface will have higher thermal absorptivity and will give cool feeling when it will be touched by human skin.

Analiza comparativă a proprietăților firelor Siro cu filare compactă pneumatică și cu inele 245-249 GUIZHEN KE, JIAFENG PEI, KUNDI ZHU Prepararea și proprietățile materialelor compozite PAN/LA-SA realizate prin electrofilare 250-255 SHU-QIANG LIU, GAI-HONG WU, YI CUI, HONG-XIA GUO Analiza mecanismului de finisare rezistentă la contracție asupra țesăturii de mătase/cânepă 256-262 ASIF ELAHI MANGAT, LUBOS HES, VLADIMIR BAJZIK, FUNDA BUYUK, MUDASSAR ABBAS Modelul absorbției termice a tricotului patent în stare uscată și autentificarea experimentală a acestuia 263-268 DANIELA NEGRU, LILIANA BUHU, EMIL LOGHIN, IONUT DULGHERIU, ADRIAN BUHU Absorbția și transferul de umiditate prin materiale tricotate din fibre naturale și artificiale 269-274 TÜLAY GÜLÜMSER Rolul microcapsulelor în mascarea mirosurilor neplăcute ale țesăturilor de bumbac 275