Hot melt adhesive for nude bra and preparation method of hot melt adhesive

The invention discloses a hot melt adhesive for an invisible bra and a preparation method thereof, and relates to the technical field of hot melt adhesives. Comprising the following components in percentage by weight: 15-25% of polyisobutene, 40-60% of naphthenic oil, 5-10% of SEEPS rubber, 15-25% of petroleum resin and 0.1-1% of a phenolic antioxidant. The SEEPS rubber is used as a base material, proper cohesive force is provided, good wettability is considered, and colloid is softer and more close to the skin; naphthenic oil is used as a softening agent, has high dissolving power and excellent low-temperature performance, and has excellent compatibility with SEEPS rubber; the polyisobutene has good compatibility with the SEEPS rubber, is used for improving the stability of the material, is not easy to leak oil, and can reduce the melting index at the same time; petroleum resin is used as a tackifier, provides proper adhesive force, is easy to peel and is durable; according to the formula disclosed by the in