Packaging container and manufacturing method and recycling method thereof

• Main Authors: SATO, MASAYASU, INAGAWA YOSHINORI, NONOMURA, AKIRA
• Format: Patent
• Language: Chinese; English
• Published: 05.08.2022
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; 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; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

The present invention relates to a laminated sheet for manufacturing a packaging container, the laminated sheet comprising a pair of plastic sheets, a barrier sheet which has flexibility and is arranged between the pair of plastic sheets, a barrier region which is formed by overlapping the pair of plastic sheets and the barrier sheet, an easy-to-peel region which is arranged between the pair of plastic sheets, and a fixing region which is arranged between the pair of plastic sheets and the barrier sheet. The easy-to-peel region is provided in the barrier region, the fixing region is located around the easy-to-peel region, and the pair of plastic sheets are fixed to each other directly and/or across the barrier sheet. The peel strength between the pair of plastic sheets and the barrier sheet in the easy-to-peel region is lower than the direct peel strength between the pair of plastic sheets and/or the peel strength between the pair of plastic sheets and the barrier sheet in the fixed region, thereby improving