초록 ▼

A disposable body warmer comprises a heat generating material and a structure for retaining the material. The retaining structure may be provided on its one side with a reflecting material. The heat generating material consists essentially of at least one oxide of alkaline earth metals such as magne

A disposable body warmer comprises a heat generating material and a structure for retaining the material. The retaining structure may be provided on its one side with a reflecting material. The heat generating material consists essentially of at least one oxide of alkaline earth metals such as magnesium oxide with a plate crystal structure and, if necessary, contains an additive such as a salt selected from the group consisting of chlorides and sulphides of alkali metals and alkaline earth metals.

대표청구항 ▼

A disposable body warmer, comprising: a heat generating material for generating moderate heat and far infrared rays, consisting essentially of a powder of magnesium oxide with a plate crystal structure; retaining means for retaining said material so that it absorb moisture present in the surrounding

A disposable body warmer, comprising: a heat generating material for generating moderate heat and far infrared rays, consisting essentially of a powder of magnesium oxide with a plate crystal structure; retaining means for retaining said material so that it absorb moisture present in the surroundings; and reflecting means provided on one side of said retaining means to reflect far infrared rays radiated from said heat generating material.