용기용 수지 피막 금속판

• Main Authors: KAWAI YUYA, KITAGAWA JUNICHI, OSHIMA YASUHIDE, KOJIMA KATSUMI
• Format: Patent
• Language: Korean
• Published: 01.07.2020
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CHEMISTRY; COMPOSITIONS BASED THEREON; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

본 발명에 따른 용기용 수지 피막 금속판은, 금속판의 양면에 수지 피막층을 구비하는 용기용 수지 피막 금속판으로서, 성형 가공 후에 용기의 외면측에 위치하는 수지 피막층을 수지 피막층의 융점＋8℃에서 2분간 열 처리한 후의 표면 자유 에너지의 극성 성분이 3.5mN/m 이상이고, 성형 가공 후에 용기의 외면측에 위치하는 수지 피막층의 145℃에 있어서의 정마찰 계수가 0.16 이하인 것을 특징으로 한다. A resin-coated metal sheet for a container according to the present invention is a resin-coated metal sheet for a container including a resin coating layer on each face of a metal sheet. A polar component of surface free energy after the resin coating layer to be positioned on an outer face side of a container after forming is subjected to heat treatment at a melting point of the resin coating layer plus 8°C for 2 minutes is 3.5 mN/m or more. A static friction coefficient at 145°C of the resin coating layer to be positioned on an outer face side of a container after forming is 0.16 or less.