Down-proof auxiliary agent and application thereof to down-proof fabric

The invention discloses application of a down-proof auxiliary agent and application thereof to a down-proof fabric. Handfeel, down-proof effects, appropriate breathability and noise in utilization, especially breathability and down-proof effects, of existing down-proof fabrics do not form an integral combination. The down-proof auxiliary agent is prepared from, by weight, 10-40g/L of a polyurethane finishing agent, 5-30g/L of polyethylene glycol, 0-30g/L of an epoxy modified organic silicon softener and 10-60g/L of soft organic silicon softener. The down-proof auxiliary agent has advantages that the fabric is sealed according to a principle of fixation of fabric interlacing points to achieve the down-proof effects while original breathability of the fabric is partially kept; by matched application of the polyurethane finishing agent and the corresponding softeners, the fabric is soft and fluffy to touch, and noise in use of the down-proof fabric is minimized. 本发明公开了种防钻绒助剂及其在防羽面料上的应用。目前的防羽面料，其手感、防钻绒效果、适当的透气量、使