| 摘要 |
PROBLEM TO BE SOLVED: To provide an air-permeable laminate which is suitable as a bag body constituent member of a disposable body warmer and comprises a nonwoven fabric and a porous film.SOLUTION: The air-permeable laminate is obtained by partially bonding the nonwoven fabric to the porous film with an adhesive. The nonwoven fabric comprises a thermoplastic long fiber nonwoven fabric having 5-25% partial thermocompression bonding rate and 15-50 g/mbasis weight and the porous film comprises a plurality of layers of an inorganic filler-containing polyethylene-based resin film having 40-100 μm thickness, and has 1 μm or smaller median diameter, when measured by a mercury penetration method, 0.3 ml/g or larger pore volume, and 5 N/10 mm or more stress when elongated by 10%. The air-permeable laminate has 5,000-240,000 seconds/100 cc of Oken type air permeability. |
