Abstract: [Problem] A problem of the present invention is, in a moisture permeable film for a total heat exchange element, which is a partition plate for constituting a total heat exchange element for a total heat exchanger, to provide a moisture permeable film for a total heat exchange element which is excellent in adhesiveness to a polyolefin microporous film and has high moisture permeability, gas barrier property and moisture resistance. [Solution] The above problem was solved by a moisture permeable film for a total heat exchange element in which a moisture permeable resin layer is provided on at least one surface of a polyolefin microporous film having air resistance of 100 sec or more and moisture permeability of 750 g/m2·24 hr or more.

Abstract: Total heat exchange element paper having excellent moisture resistance and gas barrier properties, comprising a substrate sheet and a moisture absorbent and colloidal silica both of which are adhered to the substrate sheet, wherein the substrate sheet contains natural pulp which has been beaten to a freeness specified in JIS P 8121-1:2012 of not lower than 80° SR and the colloidal silica is cationic colloidal silica.

Abstract: A total heat exchanging element which is obtained by bonding liners and flutes together and can keep excellent total heat exchange efficiency, wherein each of the liners contains a moisture absorbent in an amount of 1 to 10 g/m2and each of the flutes has a water contact angle 2 seconds after dropping of 60° to 120°.

Abstract: A total heat exchanging element paper for use in a total heat exchanger, comprising a substrate sheet containing natural pulp, having excellent strength and gas barrier properties, and characterized in that the substrate sheet contains natural pulp having a length-weighted average fiber length of 0.7 to 1.7 mm, the natural pulp has a maximum frequency peak between 0.5 mm and 1.5 mm in the fiber length histogram, and the percentage of fibers having a fiber length of 1.0 mm or more is 20% or more.

Abstract: Total heat exchange element paper having excellent moisture resistance and gas barrier properties, comprising a substrate sheet and a moisture absorbent and colloidal silica both of which are adhered to the substrate sheet, wherein the substrate sheet contains natural pulp which has been beaten to a freeness specified in JIS P 8121-1:2012 of not lower than 80° SR and the colloidal silica is cationic colloidal silica.

Abstract: An electrophotographic recording material that exhibits yellowing resistance, has high toner fixing strength, and prevents double-feeding of the recording material caused by the recording material having become charged with static electricity is provided. The electrophotographic recording material of the present invention includes a support and a toner receiving layer provided on at least one side of the support, the support is thermoplastic resin-coated paper, and the toner receiving layer includes an ionomer resin and a surfactant having an alkyl betaine structure or a fatty acid amidopropyl betaine structure.