The invention provides a low-denier nylon fabric and hydrophobic oil-proof functional finishing liquid and method, and belongs to the technical field of
textile chemistry and
dyeing and finishing
engineering.The finishing liquid is prepared from, by weight, 4-7 parts of a C6 waterproof agent, 0.2-1.4 parts of a cross-linking agent, 1-4 parts of an anti-tearing agent, 1-4 parts of a softener and 100 parts of water. The low-denier nylon fabric is subjected to hydrophobic and oil-proof modification by adopting the C6 waterproof agent, and the cross-linking agent, the anti-tear agent and the softener are introduced in the finishing process to form a mixed working solution, so that the low-denier nylon fabric has better hydrophobic, oil-proof and anti-
fouling effects, the dosage of the waterproof agent is reduced, the water repellency and the washing resistance are improved, and the fabric is more durable. The hand feeling and the
mechanical property of the fabric after
water repellent finishing are improved.