PROBLEM TO BE SOLVED: To provide an absorbent sheet which has excellent absorption performance and superior biodegradability, and to provide a method for manufacturing the same.SOLUTION: An absorbent sheet comprises an absorbing layer formed of a nonwoven fabric which is obtained by heat-treating an air-laid web formed by stacking a first web including a first raw material fiber and a second web including a second raw material fiber. The first raw material fiber contains 2% or more and 50% or less of a thermally adhesive fiber (X) that is selected from a fiber (x1) and a fiber (x2) and contains 0% or more and less than 5% of a cellulose fiber. The second raw material fiber contains 5% or more and 98% or less of the cellulose fiber. The first web has a basis weight of 113 to 300 g/m2. The fiber (x1) is a thermally adhesive fiber made of a resin (A) selected from polybutylene succinate and the like. The fiber (x2) is a thermally adhesive fiber made of a resin (B) selected from polylactic acid and the like and the resin (A).SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】優れた吸収性能と生分解性とを有する吸収シート及びその製造方法の提供。【解決手段】第一の原料繊維で構成される第一のウェブと第二の原料繊維で構成される第二のウェブとが積層したエアレイドウェブを熱処理した不織布からなる吸収層を備え、第一の原料繊維中、繊維(x1)及び繊維(x2)から選ばれる熱融着性繊維(X)の含有量が2%以上50%以下、セルロース繊維の含有量が0%以上5%未満であり、第二の原料繊維中の、セルロース繊維の含有量が5%以上98%以下であり、前記第一のウェブの坪量が113~300g/m2である吸収シート。繊維(x1):ポリブチレンサクシネート等から選ばれる樹脂(A)からなる熱融着性繊維。繊維(x2):ポリ乳酸等から選ばれる樹脂(B)と前記樹脂(A)からなる熱融着性繊維。【選択図】なし
