Patent ID: 7790000

Claim:
A non-heating evaporation apparatus comprising a retention vessel keeping a liquid formulation which contains active ingredients, a liquid absorbing mechanism which absorbs the liquid formulation from said retention vessel, and an evaporation mechanism which evaporates the active ingredients of said liquid formulation absorbed into said liquid absorbing mechanism, wherein the liquid formulation is prepared by adding water into at least one of glycols, lower alcohols and 3-methyl-3-methoxy-1-butanol so as to have a chemical concentration of 0.2 to 20% by weight, the liquid absorbing mechanism comprises a liquid absorbing core that is a felt core, biscuit core, pulp core, inorganic substance-forming core, or resin liquid absorbing member, the liquid absorbing mechanism further comprises an evaporation carrier to which the liquid formulation is supplied via said liquid absorbing core, a liquid absorbing velocity of the liquid absorbing core from one end to the other end is 1 to 40 hours, the evaporation carrier is provided with a body having a density of 0.15 to 0.25 g/cm 3 or a body having a liquid absorption quantity exceeding 15 g after 60 minutes when the carrier has an area of 60 cm 2 , a lower part of a liquid absorbing member is exposed downward from said retention vessel, and means for adjusting the evaporation of the active ingredients, said means comprising the liquid absorbing core and the evaporation carrier.