PROBLEM TO BE SOLVED: To provide a method for producing a nonwoven fabric for disposable warmer effectively utilizing heat from a heating element and having an excellent heat insulating efficiency while having a feeling of a fabric.SOLUTION: The method for producing the nonwoven fabric for disposable warmer is characterized by bonding the nonwoven fabric including polyester based or polypropylene based fibers with a hydroentanglement treatment to obtain the nonwoven fabric to have 60% or more of constant thermal efficiency at 20°C and under 65% humidity atmosphere.COPYRIGHT: (C)2009,JPO&INPIT【課題】柔軟で繊維触感を持ちながら、発熱体の熱を有効に活かす、保温効率の良好な使い捨て保温具用不織布の製造方法を提供することである。【解決手段】ポリエステル系またはポリプロピレン系合成繊維を含む不織布を、該不織布の温度20℃、湿度65%雰囲気下の定常保温効率が60%以上になるように、水流交絡によって接合することを特徴とする使い捨て保温具用不織布の製造方法。【選択図】 なし
