NANOFIBER SHEET, AND METHOD OF USING THE SAME

• Main Authors: SAITO KOJI, YANG YUTING, KOBAYASHI HIDEO, TOJO TAKEHIKO, IKEYAMA SUGURU
• Format: Patent
• Language: English; Japanese
• Published: 11.06.2020
• Subjects: BRAIDING; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; KNITTING; LACE-MAKING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; PERFORMING OPERATIONS; SPINNING; TEXTILES; TRANSPORTING; TRIMMINGS; WADDING

To provide a nanofiber sheet having a nanofiber layer hard to visually recognize in a state of attaching to the skin.SOLUTION: The nanofiber sheet 10 includes: a substrate layer 12; and a nanofiber layer 11 containing nanofibers composed of a polymer compound disposed on one face side of the substrate layer 12. The nanofiber layer 11 has a thickness of a peripheral edge 17 thereof of 0.1 μm or more and 10 μm or less, and a gradation region G where the thickness gradually increases toward the inside from the peripheral edge 17 of 3 mm or more. The difference in thickness between an inside edge and the peripheral edge in the gradation region is preferably 5 μm or more.SELECTED DRAWING: Figure 2 【課題】肌に貼り付けた状態で視認し難いナノファイバ層を備えるナノファイバシートを提供すること。【解決手段】本発明のナノファイバシート１０は、基材層１２と、該基材層１２の一方の面側に配された高分子化合物のナノファイバを含むナノファイバ層１１とを備えている。ナノファイバ層１１は、その周縁端１７の厚みが０．１μｍ以上１０μｍ以下であり、且つ該周縁端１７から内方に向かって漸次厚みが増加するグラデーション領域Ｇを３ｍｍ以上有している。前記グラデーション領域における内方端と前記周縁端との厚みの差が５μｍ以上であることが好ましい。【選択図】図２