PROBLEM TO BE SOLVED: To provide a manufacturing method of a foamed laminated sheet comprising a resin foam layer and a volatile organic compound adsorption layer formed in order on a base material, the resin foam layer having a high expansion ratio (for instance, foaming from 100 μm or less before foaming to 400 μm or more after foaming), and the manufacturing method capable of avoiding discoloration or deterioration of an organic adsorption agent even if the volatile organic compound adsorption layer includes the organic adsorption agent, and also capable of uniformly depositing the volatile organic compound adsorption layer.SOLUTION: A manufacturing method is for a foamed laminated sheet comprising at least a resin foam layer and a volatile organic compound adsorption layer formed in order on a base material. The manufacturing method includes: (1) a step 1 of forming a resin layer including a foaming agent of 100 μm or less in thickness and a transparent resin layer in order on a base material (2) a step 2 of foaming the resin layer including a foaming agent to form a resin foam layer of 400 μm or more in thickness and (3) a step 3 of forming a volatile organic compound adsorption layer on the resin foam layer.COPYRIGHT: (C)2014,JPO&INPIT【課題】基材上に、発泡樹脂層及び揮発性有機化合物吸着層を順に形成した発泡積層シートの製造方法であって、発泡樹脂層が高発泡倍率(例えば、発泡前100μm以下から発泡後400μm以上への発泡)であり且つ揮発性有機化合物吸着層に有機吸着剤が含まれる場合であっても、有機吸着剤の変色、変質等が回避されており且つ揮発性有機化合物吸着層が均一に形成できる製造方法を提供する。【解決手段】基材上に、少なくとも発泡樹脂層及び揮発性有機化合物吸着層が順に積層されている発泡積層シートの製造方法であって、(1)基材上に、厚さ100μm以下の発泡剤含有樹脂層、及び透明性樹脂層を順に形成する工程1、(2)前記発泡剤含有樹脂層を発泡させることにより、厚さ400μm以上の発泡樹脂層を形成する工程2、(3)前記発泡樹脂層上に揮発性有機化合物吸着層を形成する工程3、を有することを特徴とする発泡積層シートの製造方法。【選択図】なし
