Abstract:
A thermoplastic resin finely-foamed reflective sheet, containing: a foamed layer; and non-foamed layers, each of which has a thickness of 150 μm or less and 30 μm or more, and which are provided one above the other while sandwiching the foamed layer between the non-foamed layers, wherein the thermoplastic resin finely-foamed reflective sheet has an integrated structure, wherein the foamed layer is a thermoplastic resin finely-foamed product having a homogeneous bubble structure, in which an average bubble diameter is 10 μm or less and 0.5 μm or more, and in which a bubble number density is 1×106/mm3 or more and 1.0×1012/mm3 or less, and wherein at least one of the non-foamed layers comprises a functionality-providing layer.
Abstract translation:一种热塑性树脂微细发泡反光片,包含:发泡层; 和非发泡层,其各自具有150μm以下且30μm以上的厚度,并且在非发泡层之间夹着发泡层而一个上下设置,其中,所述热塑性树脂被细发泡 反射片具有一体结构,其中发泡层是具有均匀气泡结构的热塑性树脂细发泡产品,其中平均气泡直径为10μm以下且0.5μm以上,其中气泡数密度为 1×10 6 / mm 3以上且1.0×10 12 / mm 3以下,并且其中至少一个非发泡层包含功能提供层。