DOUBLE CONTAINER

• Main Authors: TAKEUCHI TOSHIHIRO, HONDA TAKAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 03.09.2020
• 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; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

To provide a double container which reduces labor required for development and which gives an excellent use feeling.SOLUTION: A double container includes: a flexible outer layer body 1 formed in a bottle shape; and an inner layer body 2 which is provided inside the outer layer body 1 and which is filled with a content fluid. By pressing a barrel part 5 of the outer layer body 1 to the inside, the content fluid can be discharged while deforming the inner layer body 2 in a volume-reducing way. In the case where the content fluid is discharged by pressing the barrel part 5, while the ratio of the accumulated discharge amount with respect to the initial filling amount before discharging the content fluid with which the inner layer body 2 is filled is 45-60%, a pressing force to the barrel part 5 is 30-45 N, and a flatness degree of the outer layer body 1 restored when the ratio of the accumulated discharge amount is 60% is 0-0.15.SELECTED DRAWING: Figure 1 【課題】開発に要する労力を減らしつつ優れた使用感が得られる二重容器を提案する。【解決手段】本発明の二重容器は、ボトル状に形成され可撓性を有する外層体１と、外層体１の内側に設けられ内容液が充填される内層体２とを備え、外層体１の胴部５を内側に押圧することによって内層体２を減容変形させつつ内容液を吐出させることが可能であって、胴部５を押圧して充填した内容液を吐出させる場合において、内層体２に充填した内容液を吐出させる前の初期充填量に対する累積での吐出量の割合が４５〜６０％である間、胴部５への押圧力は３０〜４５Ｎであり、且つ、累積での吐出量の割合が６０％である際に復元した外層体１の偏平度は０〜０．１５であることを特徴とする。【選択図】図１