Polyester industrial yarn dedicated to marine hawser and preparation method thereof

A method for preparing a polyester industrial yarn dedicated to a marine hawser, comprising:

• S1, preparing a regenerated polyester chip;
• S2, blending the regenerated polyester chip in S1 with an anti-ultraviolet agent, polymerizing a resulting mixture of the regenerated polyester chip in S1 and the anti-ultraviolet agent, and granulating and tackifying the polymerized resulting mixture to obtain a high-viscosity anti-ultraviolet modified polyester chip;
• S3, mixing the regenerated polyester chip in S1 with an antibacterial agent and melt granulating a resulting mixture of the regenerated polyester chip in S1 and the antibacterial agent to obtain an antibacterial master batch;
• S4, mixing the high-viscosity anti-ultraviolet modified polyester chip obtained in S2 and the antibacterial master batch obtained in S3, extruding and melting the resulting mixture to form a spinning melt, and metering and spinning to form a tow;
• S5, spraying a waterproof, acid-resistant, and alkali-resistant layer onto a surface of the tow obtained in S4;
• S6, subjecting the tow in S5 to first oiling;
• and
• S7, subjecting the tow in S6 to heat-setting of two-stage drawing and one-stage relaxation, network processing, second oiling, and winding forming to obtain the polyester industrial yarn dedicated to the marine hawser.