The textile printing and dyeing industry has high requirements for color consistency and quality stability, and temperature has a key impact on dye uptake, color brightness and fastness in the dyeing process. Dry-block calibrators have a wide range of applications in temperature control calibration of textile printing and dyeing. In printing and dyeing equipment, such as dye vats and dryers, there are multiple temperature sensors used to monitor and control temperatures in different parts. Dry-block calibrators can accurately calibrate these temperature sensors to ensure the temperature uniformity in the dye vat, so that the dye can evenly penetrate into the fabric fibers and obtain a uniform dyeing effect. For dryers, the calibrated temperature sensors can ensure the accuracy of the drying temperature and avoid problems such as color change and poor hand feeling of the fabric due to too high or too low temperature. In addition, in the pretreatment process of textile fibers, such as desizing and scouring, dry-block calibrators can also be used to calibrate relevant temperature equipment, optimize temperature control and improve the overall quality and production efficiency of textile printing and dyeing products.