Pure cotton double mercerized fabric is a pure cotton product of "double firing and double silk". It uses mercerized yarn made by singeing and mercerizing as raw material, uses CAD computer-aided design and CAM computer-aided consumption to quickly weave the designed pattern fabric. After the grey fabric is singeing and mercerizing again, after a series of finishing, the high-grade knitted fabric is consumed. Its surface texture is clear, the pattern is novel, the luster is bright, and the feel is smooth, It is better than mercerized cotton, but the price is slightly higher due to two mercerized finishing. Double mercerized cotton fabric: first mercerize the yarn, and then mercerize the fabric to make the cotton fiber fully and irreversibly swell in concentrated alkali. After treatment, the fabric is smooth and clean, with silk-like luster, and has different degrees of improvement in strength, anti-pilling, dimensional stability and other aspects. In the fabric design, some small patterns and warp-knitted fabrics with special concave-convex feeling of knitted fabrics are combined to produce silk-like appearance effect. Cotton fiber products have long been loved by people because of their good hygroscopicity, soft feel, and comfortable touch when contacting with human body. With the continuous improvement of production technology, especially the continuous development of post-treatment technology, the development of new cotton products with high added value has become an inevitable trend. Double mercerized cotton fabrics are high-end products developed based on this guiding ideology. Double mercerizing refers to weaving the fabric with mercerized cotton yarn, and then mercerizing the fabric, that is, first immersing the yarn in alkali under tension, using the basic principle of mercerizing, that is, the irreversible swelling of cotton fiber in concentrated alkali solution, making the yarn produce uniform and soft luster, and improving the strength of the yarn and the absorption rate of dyes; Secondly, mercerize the fabric. It also uses the irreversible swelling of cotton fiber in concentrated alkali solution to soak the grey cloth in alkali under tension, so as to make the mercerizing effect more comprehensive and complete. After the second mercerizing, its alkali effect is more uniform than that of ordinary cotton fabric that only mercerizes the yarn, the luster is more bright and natural, and the appearance and performance of the fabric are improved.