Which is the best hot melt adhesive for diapers?
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Hot melt adhesives are commonly used in bookbinding, for the manufacture of packaging, for coatings, diapers, other sanitary products, and tapes.
Starting Formulation for an Atactic Polypropylene Hot Melt Adhesive for End-Sealing in Diaper Construction A blend of amorphous polyolefin and styrene ethylene butadiene styrene (SEBS) copolymer was found to provide thermally stable and more processable hot melt adhesive which could be used as alternatives for EVA and SBC adhesives.
They are compatible with many structural polymers and they exhibit a high softening point together with a low melt viscosity. Therefore, upon melting, a low viscous mixture with the structural polymer is formed. Therefore, polyterpene resins are considered as the best modifiers to improve the tack and adhesion of elastomeric systems. Limonene polymers have a good hot tack performance. Most commonly used hot-melt mixtures are EVA (or block copolymers), resin tackifier, and wax blends.