Eco-friendly adhesive composition for rubber reinforcing material, and method for manufacturing rubber reinforcing material using same

An adhesive composition comprising, on the basis of the total weight thereof:

• 1.0 to 1.3% by weight of an epoxy compound;
• 4.0 to 4.1% by weight of an isocyanate compound;
• 15.3 to 16.2% by weight of a rubber latex;
• 1.5 to 3.0% by weight of a polyurethane dispersion (PUD) resin;
• 0.2 to 0.4% by weight of an amine compound;
• and
• 69 to 92% by weight of a solvent,
• wherein the epoxy compound and the isocyanate compound have a weight ratio of 1:1 to 1:10,
• wherein the polyurethane dispersion resin includes at least one of a polycarbonate-based urethane, a polyester-based urethane, a polyacrylic urethane, a polytetramethylene-based urethane, a polycaprolactone-based urethane, a polypropylene-based urethane, and a polyethylene-based urethane.