PROBLEM TO BE SOLVED: To provide an aldehyde removal filter that is effective especially for aldehyde-based gas to exhibit excellent removal effect of the aldehyde-based gas, and exhibits its performance for a long period of time.SOLUTION: It was found that an aldehyde removal filter having excellent removal effect, especially, of an aldehyde-based gas can be obtained by carrying an inorganic silicon compound, on which a polyamine compound is carried, and a hydrazine compound on a silica gel mixed paper. It is preferable that the inorganic silicon compound, on which the polyamine compound is carried, is carried in an amount of 5-50 mg per 1 g of the silica gel mixed paper, and it is preferable that the hydrazine compound is carried in an amount of 30-100 mg per 1 g of the silica gel mixed paper.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】アルデヒド系ガスに対して特に有効で、優れた除去効果があって、しかも長期的に性能を発揮するアルデヒド除去フィルターを提供することを目的とする。【解決手段】シリカゲル混抄紙に、ポリアミン化合物を坦持した無機ケイ素化合物と、ヒドラジン化合物とを坦持することで、特にアルデヒド系ガスの除去効果に優れたアルデヒド除去フィルターが得られることを見出した。さらに、シリカゲル混抄紙1g当たりポリアミン化合物を坦持した無機ケイ素化合物を5mg~50mg担持させることが好ましく、ヒドラジン化合物を30mg~100mg担持させることが好ましい。【選択図】なし
