LAMINATE, OPTICAL MEMBER WITH LAMINATE, AND IMAGE DISPLAY DEVICE

To provide a laminate which achieves excellent sliding properties regardless of whether or not a user's finger is wet with a liquid containing oil, an optical member with a laminate, and an image display device.SOLUTION: A laminate according to an embodiment of the present invention comprises a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FUCHITA TAKEHITO, KOIZUMI RYO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a laminate which achieves excellent sliding properties regardless of whether or not a user's finger is wet with a liquid containing oil, an optical member with a laminate, and an image display device.SOLUTION: A laminate according to an embodiment of the present invention comprises a substrate and a functional layer that is disposed on one side of the substrate in the thickness direction. In a specific friction test carried out through Bowden surface contact, both a static friction coefficient and a dynamic friction coefficient on a surface of the functional layer are 0.11 or less, as measured using a contact element that is wet with an oil-in-water emulsion containing the following components (1) to (5). (1) 80-90 mass% water; (2) 2-5 mass% ethanol; (3) 2-5 mass% glycerin; (4) 2-5 mass% squalane; and (5) 0.5-1 mass% hexadecanol.SELECTED DRAWING: Figure 1 【課題】ユーザの指が油分を含む液体で濡れていても、ユーザの指が油分を含む液体で濡れていなくても、優れた滑り性を実現できる積層体、積層体付光学部材および画像表示装置を提供すること。【解決手段】本発明の実施形態による積層体は、基材と、基材の厚み方向一方側に配置されている機能層とを備えている。当該積層体は、バウデン法の面接触による特定の摩擦試験において、下記成分(1)から(5)を含有する水中油型乳液で濡れた接触子を用いて測定される機能層の表面の静摩擦係数および動摩擦係数が、ともに0.11以下である。(1)水80質量%以上90質量%以下(2)エタノール2質量%以上5質量%以下(3)グリセリン2質量%以上5質量%以下(4)スクアラン2質量%以上5質量%以下(5)ヘキサデカノール0.5質量%以上1質量%以下【選択図】図1