This technology complies with JIS L 1951:2019 heat-ray shielding evaluation process for sunshade textiles. Irradiate the fabric through artificial sunlight for half an hour, and compare the maximum heating temperature between the insulated processed product and the unprocessed product to evaluate the degree of heat shielding. Assist domestic outdoor clothing or window decoration manufacturers to develop thermal shielding products and test and evaluate the performance of the products.