English: Silk occupies a unique position as a textile fibre with a rare combination of beauty and strength. Production and processing of silk is labour intensive which leads to high cost and limited production of the silk fibre. Unfortunately the high cost of silk makes it unaffordable for many consumers; therefore mixed yarn fabrics could be constructed in order to lower the price of the fabric, without changing the unique properties of the silk negatively. The aim of this study was to evaluate and compare the properties of Gonometa postica silk fabric with the properties of mixed yarn fabrics consisting of Gonometa postica silk weft on a wool warp, and Gonometa postica silk weft on an acrylic warp. This is done in order to determine which of the wool or the acrylic create a more suitable mixed yarn fabric with the Gonometa postica silk. Standard methods were used to evaluate the abrasion resistance (ASTM 4966), tensile strength and elongation (ISO 13934), stiffness (BS 3356 ), crease recovery (AATCC 66), fabric thickness (BS 2544), dimensional change (AATCC 99) and moisture regain (ASTM 2654). Analysis of variance supported the interpretation of the results of the tests. The Gonometa postica silk textile fabric has relatively good abrasion resistance, with a mean value of 28 750 rubs necessary to break two yarns. The Gonometa postica silk weft/wool warp test fabric showed very good abrasion resistance with a mean value of 51 000 rubs required to break two yarns. And the Gonometa postica silk weft/acrylic warp test fabric also showed relatively good abrasion resistance, although it was lower than the other test fabrics with a mean value of 25 197 rubs needed to break two yarns. The Gonometa postica silk test fabric had the largest weight loss, while the Gonometa postica silk weft/wool warp fabric had the smallest weight loss. Tensile strength and displacement were measured and the Gonometa postica silk fabric had the highest mean maximum load necessary to break the, Afrikaans: Sy beslaan ‘n unieke posisie as tekstielvesel met ‘n skaars kombinasie van skoonheid en sterkte. Produksie en prosessering van sy is arbeids-intensief en dit lei tot hoë koste en beperkte produksie van sy. Ongelukkig lei hierdie hoë pryse daartoe dat dit onbekostigbaar is vir baie verbruikers, aarom kan gemengde garing stowwe gemaak word om die prys van die tekstielstof te verlaag, sonder om die unieke eienskappe van die sy negatief te beïnvloed. Die doel van hierdie studie was om die eienskappe van die tekstielstowwe wat bestaan uit Gonometa postica-sy-inslag op wol-skering en Gonometa postica-sy-inslag op akriel-skering te evalueer en dit dan met Gonometa postica-sy- ekstielstof te vergelyk. Dit word gedoen om te kan bepaal watter van die wol of akriel geskik sal wees om met die Gonometa postica-sy te meng. Standaard metodes was gebruik om slytweerstand (ASTM 4966), breek sterkte (ISO 13934), styfheid (BS3356), kreukelherstel (AATCC 66), material dikte (BS2544), krimping (AATCC 99) en vogbyslag (ASTM 2654) te evalueer. Variansie analise was aangewend met die interpretasie van die resultate. Die Gonometa postica-sy-inslag/Gonometa postica-sy-skering tekstielstof het goeie slytweerstand getoon, met ‘n gemiddeld van 28 750 vrywe nodig om twee drade te breek. 195 Die Gonometa postica-sy-inslag/wol-skering tekstielstof toon baie goeie slytweerstand met ‘n gemiddeld van 51 000 vrywe nodig om twee drade te breek. Die Gonometa postica-sy-inslag/akriel-skering tekstielstof het ook goeie slytweerstand alhoewel dit laer as die ander tekstielstowwe was met ‘n gemiddeld van 25 197 vrywe voor twee drade gebreek het. Die Gonometa postica-sy-tekstielstof het die meeste gewigsverlies gehad terwyl die Gonometa postica-sy-inslag/wol-skering tekstielstof die minste gewigsverlies gehad het. Breeksterkte en verplasing was geëvalueer en die Gonometa postica-sytekstielstof het die grootste gemiddelde maksimum vrag van 492.317 N gedra voordat dit gebreek het, met ‘n verplasing