LAMINATE CONTAINING CELLULOSE NANOFIBER, AND METHOD FOR PRODUCING THE LAMINATE

• Main Authors: NAKATANI TAKESHI, MORITA MASAHIRO, HATAKEYAMA KIYOSHI, HOTTA TAKESHI, YOSHIMATSU TAKEHIRO, HAMAYA TOSHIKI
• Format: Patent
• Language: English; Japanese
• Published: 15.06.2023
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

To provide a method for producing a laminate having a functional layer that is ideal for use in a variety of industrial applications.SOLUTION: The present invention provides a method for producing a laminate obtained by applying a functional layer containing an anionically modified cellulose nanofiber onto a support substrate, wherein the functional layer is formed to be at least 30 μm thick by a post-metering coating method; and the anionically modified cellulose nanofiber is an oxidized cellulose nanofiber having a carboxyl group and/or a carboxylate group.SELECTED DRAWING: None 【課題】様々な工業用途に適用させるために最適な機能層を持つ積層体の製造方法を提供することを課題とする。【解決手段】 支持基材上に、アニオン変性セルロースナノファイバーを含む機能層を塗布してなる積層体の製造方法であって、該機能層が後計量塗工法によって膜厚３０μｍ以下となるように形成されること、前記アニオン性セルロースナノファイバーがカルボキシル基及び／またはカルボキシレート基を有する酸化セルロースナノファイバーであることを特徴とする積層体の製造方法。【選択図】なし