PROBLEM TO BE SOLVED: To provide a filter material for a deodorization filter capable of sufficiently exhibiting deodorization performance, and excellent in a pressure loss and a dust holding amount, while enhancing adhesiveness and rigidity.SOLUTION: The filter material is composed of a laminate structure of sandwiching an adsorption layer composed of an adsorbent and an adhesive between base material layers. In the filter material for the deodorization filter, one layer of the base material layer is composed of resin-processed thermal bond nonwoven fabric, and another one layer of the base material layer is composed of a laminate sheet of integrally laminating nonwoven fabric composed of heat-seal system long fiber and electret needle punch nonwoven fabric by a needle punch, and the adsorption layer and the nonwoven fabric composed of the heat-seal system long fiber of the laminate sheet are adjacently laminated by a heat-seal.COPYRIGHT: (C)2015,JPO&INPIT【課題】接着性と剛性を高めながらも脱臭性能を十分に発揮でき、圧力損失や粉塵保持量に優れた脱臭フィルター用濾材を提供する。【解決手段】基材層間に吸着剤と接着剤からなる吸着層を挟みこんだ積層構造体からなる濾材であって、基材層の一層が樹脂加工されたサーマルボンド不織布からなり、基材層のもう一層が熱融着系長繊維からなる不織布とエレクトレットニードルパンチ不織布をニードルパンチで積層一体化した積層シートからなり、吸着層と前記積層シートの熱融着系長繊維からなる不織布とが隣接し熱融着により積層されている脱臭フィルター用濾材。【選択図】なし
