OXYGEN-ABSORBENT PACKAGING MATERIAL FOR MICROWAVE SAFE PACKAGING CONTAINER

• Main Authors: ANGANA BORA, TAKUSHIMA KAZUHIRO, HAMANO MIE, HASEGAWA TOSHIYUKI, NAKADA MARIKO
• Format: Patent
• Language: English; Japanese
• Published: 11.04.2024
• 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; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING

PURPOSE: To provide an oxygen-absorbent packaging material for a microwave safe packaging container and a microwave safe oxygen-absorbent packaging container with less order generation, excellent in a microwave oven-heating resistance, capable of preventing an outside oxygen gas from permeating, and preventing a deterioration or an odor/taste change of a content by oxygen through absorbing oxygen inside a content housing space, as well as excellent in a balance among aroma retention properties, content-resistant properties, interlayer adhesive properties, heat sealability, oxygen-absorbent properties, a microwave oven resistance, and an odor/taste change resistance of a liquid content.SOLUTION: An oxygen-absorbent packaging material for a microwave safe packaging container at least includes: a substrate layer; a metal oxide vapor-deposited layer; a printing ink layer; an oxygen-absorbent adhesive layer composed of a prescribed oxygen-absorbent adhesive agent; a prescribed anti-oxidant shield resin layer; and a prescribed sealant layer, in this order.SELECTED DRAWING: Figure 1 【目的】本発明の課題は、発生臭気が少なく、耐電子レンジ加熱性に優れ、外部からの酸素ガスの透過を抑制し、内容物収容空間内の酸素を吸収することによって内容物の酸素による劣化や臭味変化を抑制し、保香性、耐内容物性、層間接着性、ヒートシール性、酸素吸収性、耐電子レンジ性、液体内容物の耐臭味変化性のバランスに優れた電子レンジ対応包装容器用酸素吸収性包装材と電子レンジ対応酸素吸収性包装容器とを提供することである。【解決手段】少なくとも、基材層と、金属酸化物蒸着層と、印刷インキ層と、特定の酸素吸収性接着剤からなる酸素吸収性接着剤層と、特定の酸化防止剤遮蔽樹脂層と、特定のシーラント層とを、この順で含む、電子レンジ対応包装容器用酸素吸収性包装材。【選択図】図１