DE-02A is low-temperature emulified soft cross-linking agent. It can increase the cross-linking density of resin and strenthen the wash & friction fastness. DE-03B, DE-03C and DE-300 is the cross-linking agent for nylon. It can increase the cross-linking density of resinand strenthen the wash & friction fastness without influence of soft feel. It also provides good effect for flocking.