Patent ID: 8517283

Claim:
An air-scenting method comprising the steps of: providing an initially-dry non-clogging porous bonded fibrous mass, said fibrous mass having an initial dry mass MD, an extent L and a volume V, said fibrous mass having a body B and an exterior surface S, said body having a capillary pressure BCP, a mass density MDB, an average fiber denier FDB, a fiber orientation index FOIB relative to an axis or a direction, said exterior surface S comprising surface segments SG, said surface segments SG having at least one of i) a capillary pressure SCP, where SCP is higher than said capillary pressure BCP, ii) a mass density of MDSG (gram/cubic centimeter) where MDSG is higher than said mass density MDB, iii) an average fiber denier FDSG where FDSG is lower than said FDB, iv) fiber orientation/alignment index FOISG where FOISG is higher than said FOIB as measured relative to said axis or direction, and v) a surfactant coating applied to said surface segments, covering or containing a portion P of said surface segments SG with a liquid-impermeable membrane or enclosure or within a container E, said membrane, enclosure or container containing no free-to-flow liquid mass, and adapting the remaining portion RSG, of said surface segments SG, to be or to remain uncovered, thereby i) allowing a predetermined rate of evaporation of an air-scenting liquid—upon impregnating said fibrous mass with said air-scenting liquid and exposing/uncovering said remaining portion RSG of said surface segments to surrounding atmosphere- to occur through said remaining portion RSG of said surface segments and ii) controlling the rate of release of said air-scenting liquid into said surrounding atmosphere, said fibrous mass and said membrane, enclosure or container E being non-reactive (inert) to and non-absorbent of said air scenting liquid, and impregnating said fibrous mass with said air-scenting liquid of mass MF where MF is not exceeding the dripping liquid mass DML of said extent L of said body, thus retaining said air-scenting liquid in a squeezable liquid-phase and held entirely within the open cells/pores/capillaries of said body of said fibrous mass without dripping under the action of the gravitational force and regardless of the orientation of said fibrous mass relative to the direction of the gravitational force, thereby making said air-scenting method non-dripping and spillage and leakage-proof.