Copolyamide (Co-PA) hot melt adhesive products include granules and powders of different particle sizes. It is a high-performance hot melt bonding material copolymerized from caprolactam, various dibasic acids and diamines. It has excellent adhesion, toughness, chemical resistance, high and low temperature stability, and is environmentally friendly and odorless. It is suitable for textile and clothing, shoe materials, automotive interiors, electronic and electrical fields, etc. It can bond firmly to a variety of materials. It cures quickly and is easy to process, meeting the needs of efficient and eco-friendly industrial bonding.