PROBLEM TO BE SOLVED: To provide an absorption assisting sheet having excellent absorption performance and biodegradability, and to provide an absorber.SOLUTION: The absorption assisting sheet is superposed on a liquid absorbent sheet having water absorbability or liquid absorbability of low-viscosity liquid, and assists the liquid absorbent sheet by retaining high-viscosity liquid having absorption which is hard for the liquid absorbent sheet. The absorption assisting sheet comprises at least one-layer nonwoven fabric that is formed by heat-treating air-laid web consisting of a material fiber that contains at least one type of thermally fusible fiber (S) selected from a fiber (x1) and a fiber (x2) and has a content of not less than 2 mass% and not more than 50 mass%. The nonwoven fabric has a basis weight of 50 g/g/m2 or more, and apparent density of not less than 0.015 g/cm3 and not more than 0.045 g/cm3. The fiber (x1) is a thermally fusible fiber composed of a resin (A) selected from polybutylene succinate. The fiber (x2) is a thermally fusible fiber composed of a resin (B) selected from polylactic acid and the resin (A).COPYRIGHT: (C)2014,JPO&INPIT【課題】優れた吸収性能と生分解性とを有する吸収補助シートおよび吸収体を提供。【解決手段】吸水性または低粘度の液体への吸液性を有する吸液性シート上に重ねて、該吸液性シートでは吸収困難な高粘度の液体を保持して吸液性シートを補助する吸収補助シートであって、繊維(x1)及び繊維(x2)から選ばれる少なくとも1種の熱融着性繊維(X)の含有量が2質量%以上50質量%以下を含有する原料繊維で構成されるエアレイドウェブを熱処理した坪量が50g/m2以上の少なくとも一層の不織布からなり、かつ、見掛け密度が0.015g/cm3以上0.045g/cm3以下であることを特徴とする吸収補助シート。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】図1
