The anionic hydrophilic softener AX-H501 is a special anionic softener that is very stable to high temperatures. It does not cause yellowing at all, and is an ideal product for all-white cloth. It is especially suitable for the rolling of cotton and polyester/cotton fabrics, which limits the dye migration at high temperatures. Polyester can be set at a high temperature after being softened, and still maintain excellent color fastness. The anionic hydrophilic softener AX-H501 achieves a hand-feel similar to a cationic softener, which also imparts good hydrophilicity and antistatic properties.