MULTILAYERED STRUCTURE COMPRISING FINE FIBER CELLULOSE LAYER

摘要

Provided is a multilayered structure comprising at least one fine cellulose fiber nonwoven fabric layer made of a fine cellulose fiber, wherein the multilayered structure is characterized in that the mean fiber diameter of the fine cellulose fiber forming the fine cellulose fiber non-woven fabric layer is 0.005 to 0.5 μm, and the mean thickness of the multilayered structure is 10 to 200 μm, the density thereof is 0.10 to 0.90 g/cm3, and the permeability resistance thereof is 2000 s/100 ml or more. Also provided are an energy recovery ventilation sheet made of this multilayered structure, an energy recovery ventilation element using this energy recovery ventilation sheet as a partitioning material for partitioning two types of air flow of different temperature and/or humidity, and a energy recovery ventilator using this energy recovery ventilation element.

主权项

1. A multilayered structure comprising at least one fine cellulose fiber nonwoven fabric layer composed of fine cellulose fibers, wherein said fine cellulose fibers that form the fine cellulose fiber nonwoven fabric layer have a mean fiber diameter of 0.005 μm to 0.5 μm, and said multilayered structure has a mean thickness of 10 μm to 200 μm, a density of 0.10 g/cm3 to 0.90 g/cm3, and a permeability resistance of 2000 s/100 ml or more.