Title:
TOTAL HEAT TRANSFER ELEMENT SHEET AND TOTAL HEAT TRANSFER ELEMENT
Document Type and Number:
Japanese Patent JP2020148435
Kind Code:
A
Abstract:
To provide a total heat transfer element sheet excellent in moisture permeability, moisture resistance, strength, and gas insulation.SOLUTION: In a total heat-transfer element sheet containing a base material sheet, the base material sheet contains moisture-releasing/absorbing synthetic fibers and natural pulp. A length-weighted average fiber length of the natural pulp is 0.7-1.7 mm. In a fiber length histogram of the natural pulp, a maximum frequency peak is in 0.5-1.5 mm. A ratio of fibers having a fiber length of 1.0 mm or more is 25.0% or more. A percentage content of the moisture-releasing/absorbing synthetic fibers relative to a total fiber component contained in the base material sheet is 2-10 mass%.SELECTED DRAWING: None
Inventors:
MATSUOKA MASANOBU
YAMANE KENGO
YAMANE KENGO
Application Number:
JP2019048099A
Publication Date:
September 17, 2020
Filing Date:
March 15, 2019
Export Citation:
Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
F28F21/00; D21H15/02; D21H27/00; F24F7/08; F28F3/08