Disposable body warmer

摘要: A disposable body warmer comprising a flat bag and in form having thickness of 2 to 5 mm, heat generating agent iron powder as main ingredient mixed therewith 9 11% by weight water-retaining agent, 18 22% water, an oxidation promotor sodium chloride. The is provided with air-permeable surface air permeability per unit 5,000 10,000 sec/100 cc so bring about reduction the pressure accompanying oxidative generation packed bag. other nontransferable self-adhesive layer.