Wool-polyester fabric refers to fabric made from blended yarns of wool and polyester and is one of the most common types of blended wool fabrics. The commonly used wool-polyester blending ratio is 45:55, which retains the advantages of wool while making full use of the strengths of polyester. Almost all woolen and worsted wool fabrics have corresponding wool-polyester blended varieties. The blending ratio can also be adjusted according to the requirements of the fabric, such as 70:30 or 80:20. Among them, lightweight worsted wool-polyester tweed is also known as cool wool fabric and is commonly referred to as “wool Dacron,” making it one of the fabrics that best reflects the characteristics of wool-polyester blends. Some varieties use two-ply yarns for both warp and weft, while others use two-ply yarns for the warp and single yarns for the weft, or single yarns for both warp and weft. Generally, 20–14 TEX (50–70 metric count) two-ply yarns are used, while lightweight fabrics use 10–8 TEX (100–120 metric count) two-ply yarns. The fabric weight is approximately 170–190 g/m².
