Liquid storage container and method for folding the container

Patent metadata

Field	Value
Publication number	US-2016200494-A1
Application number	US-201414912471-A
Country	US
Kind code	A1
Filing date	Aug 8, 2014
Priority date	Aug 20, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

A liquid storage container which can be securely inflated within an external container. The liquid storage container includes a bag body and an ejection outlet. The bag body includes a plurality of bellows portions formed by accordion-folding the bag body along longitudinal crease lines, and has a double-folded portion formed by folding the bag body along an upper lateral crease line and a lower lateral crease line. With reference to the bag body, the following relations are satisfied: 10%<X/H<50%, 3%<Y/H<10%, where H is the length of the bag body, X is the distance between the top periphery and the lower lateral crease line, and Y is the distance between the upper lateral crease line and the lower lateral crease line.

First claim

1 - 14 . (canceled)

15 . A liquid storage container to be housed in an external container having an opening, comprising:
a bag body composed of an inner bag and an outer bag which are heat-sealed together; and an ejection outlet provided at a top periphery of the bag body and to be attached/detached to/from the opening of the external container, wherein the bag body has the top periphery, a bottom periphery and two side peripheries, wherein the bag body includes a plurality of bellows portions formed by accordion-folding the bag body along longitudinally-extending longitudinal crease lines, and has a double-folded portion formed by folding the bag body along an upper lateral crease line and a lower lateral crease line, and wherein the following relations are satisfied:
10%< X/H< 50%, 3%< Y/H< 10%

where H is the length of the bag body, X is the distance between the top periphery and the lower lateral crease line, and Y is the distance between the upper lateral crease line and the lower lateral crease line.

16 . The liquid storage container according to claim 15 , wherein the top periphery of the bag body includes two heat-sealed portions, the bottom periphery includes a single heat-sealed portion, and the two side peripheries each include a single heat-sealed portion.

17 . The liquid storage container according to claim 15 , wherein the bag body has a pair of folded portions each formed by folding a top periphery-side corner portion of a single side periphery-side bellows portion of the bag body, and wherein the length a of each folded portion and the length H of the bag body satisfy the following relation: 3%<a/H<20%.

18 . The liquid storage container according to claim 15 , wherein the bag body has a pair of folded portions each formed by folding a top periphery-side corner portion of a plurality of side periphery-side bellows portions of the bag body, and wherein the length a of each folded portion and the length H of the bag body satisfy the following relation: 3%<a/H<20%.

19 . The liquid storage container according to claim 17 , wherein the width b of each folded portion and the width W of each bellows portion satisfy the following relation: ½×W≦b≦W.

20 . The liquid storage container according to claim 15 , wherein the ejection outlet has an ejection outlet mount portion of a generally elliptic cylindrical shape, mounted to the bag body, and wherein at least a pair of bellows portions, lying adjacent to and on both sides of the ejection outlet mount portion, of the plurality of bellows portions, and optionally the outer bellows portions, lying outside the pair of bellows portions in the width direction, are folded in such a manner that they intersect with a line extending from the long axis of the ellipse of the ejection outlet mount portion.

21 . The liquid storage container according to claim 20 , wherein the pair of bellows portions lying adjacent to and on both sides of the ejection outlet mount portion, is folded in the same direction as viewed from the ejection outlet mount portion.

22 . The liquid storage container according to claim 20 , wherein the width W5 of each of the pair of bellows portions lying adjacent to and on both sides of the ejection outlet mount portion, and the width W6 of each of the outer bellows portions satisfy the relation: W6/2>W5>0.

23 . The liquid storage container according to claim 20 , wherein the bag body, in its lower portion, has a bottom folded portion.

24 . The liquid storage container according to claim 20 , wherein the outer bag of the bag body has an elongation of 300% to 500%.

25 . A method for folding a liquid storage container to be housed in an external container having an opening, comprising the steps of:
preparing a liquid storage container comprising a bag body composed of an inner bag and an outer bag which are heat-sealed together, and an ejection outlet provided at a top periphery of the bag body and to be attached/detached to/from the opening of the external container, said bag body having the top periphery, a bottom periphery and two side peripheries; accordion-folding the bag body along longitudinally-extending longitudinal crease lines to form a plurality of bellows portions; and folding the bag body along an upper lateral crease line and a lower lateral crease line to form a double-folded portion, wherein the following relations are satisfied:
10%< X/H< 50%, 3%< Y/H< 10%

where H is the length of the bag body, X is the distance between the top periphery and the lower lateral crease line, and Y is the distance between the upper lateral crease line and the lower lateral crease line.

26 . The method for folding a liquid storage container according to claim 25 , wherein a pair of folded portions is formed each by folding a top periphery-side corner portion of a single side periphery-side bellows portion of the bag body, and wherein the length a of each folded portion and the length H of the bag body satisfy the following relation: 3%<a/H<20%.

27 . The method for folding a liquid storage container according to claim 25 , wherein a pair of folded portions is formed each by folding a top periphery-side corner portion of a plurality of side periphery-side bellows portions of the bag body, and wherein the length a of each folded portion and the length H of the bag body satisfy the following relation: 3%<a/H<20%.

28 . The method for folding a liquid storage container according to claim 26 , wherein the width b of each folded portion and the width W of each bellows portion satisfy the following relation: ½×W≦b≦W.

Assignees

• Dainippon Printing Co Ltd

Inventors

• Harada Ryo
• Gotou Hiroaki
• Miyake Masato
• Nishimura Shota
• Kumazawa Noriko
• Motai Katsuyuki

Classifications

• A45D34/00

  Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes · CPC title

• B65D77/06

  Liquids or semi-liquids {or other materials or articles} enclosed in flexible containers disposed within rigid containers · CPC title

• B32B27/08

  of synthetic resin · CPC title

• B65D31/04 Primary

  with multiple walls (B65D81/3881 takes precedence; for shock absorbing purposes B65D81/03) · CPC title

• A61J1/10

  Bag-type containers · CPC title