SELF-STANDING PACKAGING BAG

To provide a self-standing packaging bag that is composed of a similar material type and has excellent falling resistance.SOLUTION: A self-standing packaging bag is formed by heat sealing a pair of side body parts each including a base material layer and a sealant layer, and a bottom tape including...

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Bibliographic Details
Main Authors KUDO SHIGEKI, KADOYA HARUNA
Format Patent
LanguageEnglish
Japanese
Published 01.06.2022
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
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
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Summary:To provide a self-standing packaging bag that is composed of a similar material type and has excellent falling resistance.SOLUTION: A self-standing packaging bag is formed by heat sealing a pair of side body parts each including a base material layer and a sealant layer, and a bottom tape including the base material layer and the sealant layer and has a mountain-fold part, in which the base material layer and the sealant are composed of a similar material type, and satisfy the condition represented by the following expression (1), and a welded part having a pair of notch parts or a pair of bored holes provided in a region between the mountain-fold part and a bottom side of the self-standing packaging bag and the side part of the bottom tape, and obtained by locally welding sealant layers of the side body parts through the pair of notch parts or the pair of bored holes is formed. Expression (1): 0.35≤L/W≤0.50. In the expression (1), L represents a distance (unit: mm) between the bottom side and the mountain-fold part of the self-standing packaging bag, and W represents a width (unit: mm) of the self-standing packaging bag.SELECTED DRAWING: Figure 1 【課題】同系統の材料で構成されており且つ優れた落下耐性を有する自立性包装袋を提供する。【解決手段】本開示に係る自立性包装袋は、基材層及びシーラント層をそれぞれ含む一対の側胴部と、基材層及びシーラント層を含み且つ山折り部を有する底テープとをヒートシールして形成されており、基材層及びシーラントが同系の樹脂材料からなり、下記式（１）で示される条件を満たし、山折り部と当該自立性包装袋の底辺との間の領域であり且つ底テープの側部に設けられた一対の切り欠き部又は一対のくり抜き穴を有し、一対の切り欠き部又は一対のくり抜き穴を通じて側胴部のシーラント層同士が局所的に融着した融着部が形成されている。０．３５≦Ｌ／Ｗ≦０．５０ ...（１）［式（１）中、Ｌは自立性包装袋の底辺から山折り部までの距離（単位：ｍｍ）を示し、Ｗは自立性包装袋の幅（単位：ｍｍ）を示す。］【選択図】図１
Bibliography:Application Number: JP20200193442