The invention discloses an environment-friendly anti-seepage DTY (Draw Textured
Yarn) oil agent and a preparation method thereof, and belongs to the technical field of chemical
fiber processing aids. The environment-friendly seepage-proof DTY oiling agent comprises the following components in parts by weight: 10-15 parts of vegetable fat, 3-8 parts of nanoparticles, 5-10 parts of linear-chain
fatty alcohol-
polyoxyethylene ether, 5-10 parts of branched-chain
fatty alcohol-
polyoxyethylene ether, 1-2 parts of a film-forming agent, 2-5 parts of an anti-splashing agent and the balance of water. Wherein the vegetable fat is
castor oil and the like, the nanoparticles are
zinc oxide with the particle size of 50-100 nm and the like, the film-forming agent Tg is-20 DEG C to 0 DEG C, and the anti-splashing agent is a compound of
sodium dioctyl sulfosuccinate and low-carbon
alcohol; during preparation, water is heated to 40-50 DEG C, all the components are sequentially added,
ultrasonic dispersion and stirring emulsification are performed, the
residual oil rate of the oil agent is smaller than or equal to 0.3% after the oil agent is aged for 7 days at 60 DEG C, and the
contact angle of a film layer to water is larger than or equal to 90 degrees. The method has the advantages of
environmental protection, seepage prevention, high-temperature stability and the like, and is suitable for production of
polyester draw-textured yarns.