CN102143895A

CN102143895A - Spout member and packaging bag utilizing same

Info

Publication number: CN102143895A
Application number: CN2009801342766A
Authority: CN
Inventors: 武田安弘; 鹫田贤司; 小山贵广; 森哲志; 高田康治; 小国盛稔; 池田广隆; 森敏彦; 小野松太郎
Original assignee: Fujimori Kogyo Co Ltd; Morinaga Milk Industry Co Ltd
Current assignee: Morinaga Milk Industry Co Ltd; Zacros Corp
Priority date: 2008-09-03
Filing date: 2009-09-01
Publication date: 2011-08-03
Also published as: US20110293202A1; KR20110065479A; WO2010026964A3; WO2010026964A2; KR101629721B1; EP2336042A2; EP2336042A4

Abstract

It is aimed to provide a spout member and a packaging bag using the spout member which have excellent handling property and hygiene management performance at the time of supplying water or the like from the outside before and during use such as administration of water and medicine, in which a closure means for freely opening and closing an aperture formed by cutting off parts of peripheral portions of sealed film pieces is protected from a contained content at the time of storage or transportation and which have excellent protecting property even when an inner pressure acts in the packaging bag, excellent contamination preventing property until a spout is opened and excellent contamination preventing property and handling property after opening.

Description

Spout member and packaging bag using same

Technical Field

The present invention relates to a packaging bag for containing a tube-through enteral nutrient, a tube-through enteral food, or the like, and more particularly, to a packaging bag which is opened by cutting a part of the peripheral edge of a film to be sealed to form an opening, a spout member which includes a spout for pouring out the contents and is attached to the packaging bag, and a packaging bag using the spout member.

Background

Tube-through-intestine nutrients (hereinafter sometimes simply referred to as nutrients) and tube-through-intestine flowable foods (hereinafter simply referred to as flowable foods) are used in various packaging containers such as cans, paper containers, pouches, bottles, and the like, wherein pouch-type packaging bags are widely used because they have excellent sealability and are easy to handle. Among them, the pouch type generally has an injection port to which a flexible tube is connected to feed, especially if a nutrient and a flowable food are diluted for use in accordance with a patient's condition at the time of initial use, and are usually supplemented with insufficient drug or moisture after stabilization. In view of the above, there is known a packaging bag in which a separate member such as a molded member is attached to a peripheral portion of the packaging bag as a spout (see patent document 1 below), but this causes problems such as an increase in cost of materials and attachment, and an increase in volume when packaging bags are stacked up, particularly if the diameter of the spout is large, and the handling is difficult, and a structure in which a part of the packaging bag is cut off to form the spout is widely adopted (see patent document 2 below).

However, the above-described structure in which the spout is formed by cutting off a part of the packaging bag is not easy to stably hold the bag if a reliable holding mechanism necessary for operating the bag is not provided in a state in which liquid contents are contained, and it is also difficult to perform an operation of cutting off a part of the bag and an operation of adding water or a medicine, and there are problems in terms of hygiene control such as dropping the packaging bag, spilling the contents of the packaging bag in a tilted state, and contamination of the spout due to touching the inside of the packaging bag or an excessively large opening margin at the time of opening the spout.

In view of the above problems, there has been developed a packaging bag provided with an easy peel portion (easy peel) which separates the locking mechanism from the contents before opening and peels the locking mechanism off when opening (see patent applications 3 and 4 below).

Conventionally, such an easily peelable portion is formed by joining films constituting a packaging bag by peel seal, but the easily peelable portion is peeled off by internal pressure applied to the inside of the packaging bag due to dropping or the like at the time of storage or transportation, and therefore the intended effect is not achieved.

Further, there is known a packaging bag provided with an easily peelable portion at a portion where an opening is formed, which aims to prompt opening by peeling the easily peelable portion or to prevent a decrease in internal pressure due to breakage of the easily peelable portion (see

patent applications

5 and 6 below), and which does not aim to prevent the easily peelable portion from being peeled off by receiving the internal pressure inside the packaging bag.

In addition, in order to facilitate pouring out the contents, a packaging bag is widely used in which a separate member such as a molded member is attached to a peripheral portion of the packaging bag as a spout member. If the spout member is exposed to the outside of the package bag before the package bag is opened during transportation or storage, the package bag may be contaminated by exposure to the outside air, dust, etc., and the vitamin contained in the package bag may be destroyed by the ingress of H2O, O2, etc., resulting in oxidation and deterioration. Since problems tend to occur in hygiene management or quality management, it is known to seal the inside of the spout member between the films (see

patent documents

7 and 8 below).

However, the spout member of the packaging bag described in the following patent documents has a possibility that fingers or the like may come into contact with the vicinity of the spout when the bag is opened, and the spout member may be resealed after the opening of the bag, but the spout member must be taken out of the separated film for use, which causes problems in handling convenience and contamination resistance.

Further, the spout member is easily moved when sealed in a package bag, and is easily damaged by external impact or the like. Reference technical literature patent literature

Patent document 1: japanese unexamined patent publication No. 2008-105696 patent document 2: japanese unexamined patent publication No. 2005-206221 patent document 3: japanese unexamined patent publication No. 2005-154017 patent document 4: japanese unexamined patent publication No. 2005-40630 patent document 5: japanese unexamined patent publication No. 2006-315760 patent document 6: japanese laid-open patent publication No. 2002-225889 (patent document 7): japanese patent application laid-open No. Hei 10-305850 patent document 8: japanese unexamined patent publication No. 11-130153

Disclosure of Invention

Problems to be solved by the invention

The present invention provides a spout member and a packaging bag using the spout member, wherein an opening is formed by cutting a part of a peripheral portion of a film to be sealed to open the opening, and an object of the present invention is to provide a locking mechanism for protecting the opening and locking the opening from contamination of contents during storage or transportation, and the protection performance is excellent when the inside of the packing bag is subjected to the internal pressure, the packing bag has excellent convenience in handling and hygienic management, it is an object of the present invention to provide a spout member for a packaging bag having a spout, which facilitates replenishment of water, a chemical, etc. from the outside before and after use and during use, the spout portion has excellent contamination resistance before and after it is unsealed, and is convenient to handle after it is unsealed.

Means for solving the problems

In order to solve the above problems, the present invention has the following configuration.

(1) A packaging bag is formed by sealing a plurality of peripheral portions of a film, the peripheral portions having an injection portion and an injection portion; wherein the injection part is formed with an opening part by cutting off a part of the peripheral part of the sealed film from an unsealed part, and the opening part is opened to form an injection port; at least two holes are formed on both sides of the peripheral portion near the injection portion, the two holes being a hanging means for hanging the packaging bag and a holding means for holding the packaging bag with fingers.

(2) The packaging bag according to the item (1), wherein, in the pouring part, a line part which forms both sides of the pouring port part and connects the holes is made more rigid than the remaining part.

(3) The packaging bag according to the item (2), wherein the injection part has a linear engaging part which is formed on both sides of the injection port part and which is connected to the line connecting the holes and which can be opened and closed.

(4) The packaging bag according to any one of (1) to (3), wherein the hole is a circular or substantially circular hole having a diameter of 8 to 30 mm.

(5) The packaging bag according to any one of (1) to (3), wherein the peripheral portion of the hole is partially left, and the left peripheral portion is formed into a pinhole or a half-cut shape, and the pinhole or the half-cut shape is torn to form a hole in which the film is partially connected to the bag main body in use.

(6) The packaging bag according to any one of (1) to (3), wherein the hole has a slit shape having a length of 30 to 60 mm.

(7) The packaging bag according to any one of (1) to (6), wherein the film is not sealed at the peripheral portion of the hole.

(8) The packaging bag according to any one of (1) to (3), wherein the upper edge portion of the hole is formed in a downwardly convex shape when the hole is used as a holding means for holding with fingers.

(9) The packaging bag according to (8), wherein the film is not sealed at the upper edge of the hole.

(10) The packaging bag according to any one of (1) to (9), wherein the spout portion is disposed in a substantially vertically downward direction when at least one of the holes is hung as a hanging means.

(11) A packaging bag which forms a holding portion by sealing one or more peripheral portions of a film and forms an opening portion for opening by cutting off a part of the peripheral portion of the sealed film from an unsealed portion, characterized in that the opening portion includes a locking mechanism which extends over the entire width of the opening portion and is openable and lockable, and an easily peelable portion, wherein the locking mechanism is constituted by mutually engaging 1 st and 2 nd members, and the easily peelable portion extends over the entire width of the opening portion; the easy-peeling portion separates the locking mechanism from the storage portion before being unsealed, and the opening portion is unsealed by peeling the easy-peeling portion at the time of unsealing; wherein the locking mechanism is formed by joining an upper portion of a 1 st base member provided with the 1 st member and an upper portion of a 2 nd base member provided with the 2 nd member to inner sides of the respective films facing each other and forming the opening portion; the lower end portion of one of the base members is provided to be longer than the other base member, and the lower end portion is joined to the other film facing the other base member by an easy peel seal to form an easy peel portion.

(12) The packaging bag according to (11), wherein the 1 st and 2 nd base members are not exposed to an outer edge portion of a seal portion formed by sealing a peripheral portion of the film.

(13) The package according to (11) or (12), wherein the locking mechanism is a snap seal, wherein the snap seal is formed by a raised head part 1 and a recessed head part 2, and the raised head part 1 protrudes from the seal base.

(14) The packaging bag according to (13), wherein the locking mechanism is characterized in that a cross section of the tip of the 1 st member of the tab, which is perpendicular to the longitudinal direction, is formed in an elliptical shape; a recessed part with a cross section perpendicular to the longitudinal direction of the front end part of the concave head 2 is set to be approximately the same as the cross section of the front end part of the 1 st component; when the 1 st and 2 nd members are engaged with each other, a gap is formed only between the 1 st member tip portion and the 2 nd member tip portion in the vicinity of the 1 st member base portion.

(15) The packaging bag according to any one of (11) to (14), wherein an easy-open portion for easily cutting a peripheral portion of the film is provided at a portion where the opening is formed, and the easy-open portion is formed such that positions of the easy-open portion where the opening is cut and the end is cut are different between the two films.

(16) The packaging bag as set forth in any one of (11) to (15), characterized in that a spout portion is provided at the peripheral portion of the film to be sealed.

(17) A spout member comprising a spout portion, a seal portion and a lid portion, wherein the spout portion comprises a base portion and a cylindrical portion protruding from the base portion, and the seal portion seals the distal end portion of the cylindrical portion via a breakable weak portion; the cap is characterized in that the cap is shaped to cover the entire barrel, and the cap and the pouring section are provided with a locking mechanism capable of locking the cap to the pouring section.

(18) The spout member according to (17) characterized in that the outer surface of the cylindrical portion of the spout portion is provided with a plurality of annular projections for locking the hose.

(19) The spout member of (17) or (18), characterized in that the cap portion can reseal the spout.

(20) The spout member according to any one of (17) to (19), wherein the weakened portion is formed by a thin portion having a thickness of 0.15mm to 0.2 mm.

(21) A packaging bag comprising a housing portion formed by a 1 st seal portion for sealing peripheral portions of one or more films, the peripheral portions being provided with a spout member seal portion, wherein the spout member seal portion is characterized in that (17) the spout member is disposed between two films constituting the packaging bag in a state in which a cylindrical portion of the spout portion protrudes from the housing portion, and a base portion of the spout portion is fixed between the films of the 1 st seal portion; and the outlet member is formed by sealing the lid portion with a 2 nd sealing portion for sealing between the films around the lid portion in a state where the lid portion is sandwiched between the films; the film located on the front end side of the base portion of the spout member and constituting the spout member sealing portion is cut off, and the spout is unsealed by simultaneously screwing the film together with the cap portion of the spout member, thereby separating the cap portion from the spout portion.

(22) The packaging bag according to the item (21), wherein an easy-to-open portion for cutting off a film constituting the spout member sealing portion located on the tip side of the spout member base portion is provided.

(23) The packaging bag according to the item (21) or (22), wherein the easy-opening portion is formed in a curved shape such that an intermediate portion of the opening end is closer to the base of the spout portion than the opening start position and the opening end position after the easy-opening portion is cut.

(24) The packaging bag according to any one of (21) to (23), wherein the easy-opening portion is provided at a position closer to the distal end side than the skirt portion of the lid portion.

(25) The packaging bag as set forth in any one of (21) to (24), characterized in that the peripheral portion of the film to be sealed is provided with an injection portion.

(26) The packaging bag according to any one of (1) to (25), which is characterized in that it is used for a tube-through-intestine flowable food or a tube-through-intestine nutrient. The invention has the advantages of

According to the packaging bag of the present invention, at least two holes are formed on the peripheral portion near the injection portion and on both sides of the injection port portion, and the holes are a hanging means for hanging the packaging bag and a holding means for holding the packaging bag when the packaging bag is operated, so that the packaging bag can be stably held before and after use and during use when water or the like is supplied from the outside, and the cutting operation can be easily performed, and the operation and sanitary management are very convenient; by joining the lower end portion of the base member having the locking mechanism to the other film disposed opposite to the lower end portion of the base member, the locking mechanism for opening and locking the opening portion is isolated from the contents before being unsealed, and therefore, the opening portion is protected from contamination of the contents and the like during storage or transportation, and excellent sanitary management and easy handling are provided; and even if the interior of the packaging bag is subjected to internal pressure, the structure makes the easy-to-peel part not easily subjected to the pressure for jointing and peeling the lower end part of the base component, so that the packaging bag has excellent pressure resistance. Further, since the above-described protection and pressure resistance can be easily achieved by the base member having the locking mechanism, the spout member of the present invention is easy to manufacture and has excellent cost performance, and since the spout member has the lid portion that seals the spout before being unsealed and can cover the spout after being unsealed, the spout member of the present invention has excellent contamination resistance during and after being unsealed and is easy to handle; also, the packaging bag according to the present invention has excellent hygiene management and quality management before opening because the spout member is sealed and sandwiched within the packaging bag, and the sealing portion sealing the spout has excellent breakage resistance and does not come into contact with the spout member when opened, thus having excellent contamination prevention performance.

Drawings

FIG. 1 is a front view of a packaging bag according to an embodiment of the present invention. The figure shows a cross-sectional view A-A of the package. Fig. 3 is a schematic view showing a state in which the contents are poured out in a suspended state in the packaging bag shown in fig. 1. Fig. 4 is a schematic view showing a state in which the injection part is opened in the packaging bag shown in fig. 1. FIG. 5 is an enlarged view of another embodiment of a hole according to the present invention. FIG. 6 is an enlarged view of another embodiment of a hole according to the present invention. FIGS. 7(a) to (d) are enlarged views of another embodiment of the hole of the present invention; fig. 7(e) is an enlarged view of a state in which the needle hole or half-cut hole in fig. 7(a) to (d) is broken to form a hole. Fig. 8 is an enlarged view of another example of the mechanism for unsealing the injection opening according to the present invention. FIG. 9 is a front view of a packaging bag according to another embodiment of the present invention. FIG. 10 is a front view of a packing bag according to another embodiment of the present invention. FIG. 11 is a front view of a packing bag according to another embodiment of the present invention. FIG. 12 is a front view of a packaging bag according to another embodiment of the present invention. Fig. 13 is an enlarged view of the hole in the package shown in fig. 12. FIG. 14 is a front view of a packaging bag according to an embodiment of the present invention. FIG. 14 is a schematic view showing the structure of the X-X cross section of the packaging bag. Fig. 16 is an enlarged view of an opening portion formed in the package bag shown in fig. 14 when the package bag is opened. Fig. 17 is a sectional view of an engagement seal structure according to an embodiment of the locking mechanism. Fig. 18 shows a cross-sectional view of the opening when unsealing. FIG. 19 is a schematic view showing a state in which the positions of the opening and closing ends are shifted from each other between two films after the opening. FIG. 20 is a front view of a spout member according to an embodiment of the present invention. Fig. 21 is a sectional view of the spout member shown in fig. 20 as viewed from the front. Fig. 22 is an X-X sectional view of the spout member shown in fig. 20. FIG. 23(a) is a front view of the cap section of FIG. 20 after the spout member is opened; (b) is a bottom view of the lid portion shown in (a); (c) is a plan view of the lid shown in (a). FIG. 24(a) is a front view of the pouring section of the pouring outlet member shown in FIG. 20 after the opening thereof is sealed; (b) is a bottom view of the pouring section shown in (a). Fig. 25 is a front view of an exemplary embodiment of a packaging bag provided with the spout member shown in fig. 20. Fig. 26 is an enlarged view of the spout member sealing portion of the packaging bag shown in fig. 25. Fig. 27 is a Y-Y sectional view of the spout member sealing portion shown in fig. 26.

Detailed Description

Embodiment 1 the present invention will be described in further detail below with reference to the accompanying drawings. FIG. 1 is a front view of a packaging bag according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line A-A of the packaging bag shown in FIG. 1. In fig. 1 and 2, peripheral portions 2 of two

films

1a and 1a are sealed by welding or the like to form a seal portion (indicated by oblique lines in the drawings) to form a main body of the packaging bag 1. When the contents are filled, a part of the peripheral portion of the packaging bag is formed as an unsealed portion and the remaining portion is formed, the content is filled into the unsealed portion as a filling port, and the unsealed portion is sealed again. Fig. 14 is a front view of a packaging bag according to an embodiment of the present invention, fig. 15 is a view showing a structure of an X-X cross section of the packaging bag shown in fig. 14, and fig. 16 is a partially enlarged view showing a portion where an opening is formed when the packaging bag shown in fig. 14 is opened. In fig. 14 to 16, peripheral portions 54 of two

films

53a and 53a are sealed by welding or the like to form a sealed portion (indicated by oblique lines in fig. 14) to form a storage portion 55 and further form a main body portion of the packaging bag 53. When the contents are filled, a part of the peripheral portion of the packaging bag is formed as an unsealed portion and the remaining portion is formed, the content is filled into the unsealed portion as a filling port, and the unsealed portion is sealed again. FIG. 20 is a front view of a spout member according to an embodiment of the present invention; fig. 21 is a sectional view of the spout member shown in fig. 20 as viewed from the front; FIG. 22 is an X-X cross-sectional view of the spout member of FIG. 20; FIG. 23(a) is a front view of the cap section of FIG. 20 after the spout member is opened; FIG. 23(b) is a bottom view of the cover shown in FIG. 23 (a); FIG. 23(c) is a top view of the lid shown in FIG. 23 (a); FIG. 24(a) is a front view of the spout portion of the spout outlet member of FIG. 20 after unsealing; fig. 24(b) is a bottom view of the pouring section shown in fig. 24 (a).

The peripheral portion 2 of the packaging bag 1 is provided with an injection portion 3 and an injection portion 4. The pouring portion 3 is provided on the upper edge portion 2a of the peripheral portion 2, and the sealing portions 2b and 2b at both ends of the upper edge portion 2a are formed to be slightly wider, so that the unsealed portion protrudes upward inside the packaging bag and forms a pouring port after opening. The injection part 3 is provided with an easy-open part 6, the easy-open part 6 is stretched from the sealed part to the sealed part on the opposite side through the unsealed part forming the injection port, one end of the upper side of the easy-open part 6 is grasped to be pulled along the easy-open part 6 to remove the upper edge part (part of the peripheral part) of the sealed film, the injection port 3a is formed in the opening part formed by the unsealed part, and the injection port is opened. The easy-to-open portion 6 is formed into a half-cut shape by laser irradiation or the like. If the easy-open portions 6 having different trajectories are formed on the two

films

1a and 1a forming the packaging bag 1, the positions of the opening ends cut along the easy-open portions 6 can be shifted from each other between the films, so that each film can be easily sandwiched and the opening can be easily pushed open. In the packaging bag 1 shown in fig. 1, a linear engaging portion 7 and an easily peelable portion 8 which can be opened and closed are formed on a

line connecting holes

5 and 5 described later which connect the unsealed portions. The linear engaging portion 7 is provided for closing the injection port after completion of the injection operation for sanitary management; the easy-peel portion 8 is provided for the purpose of improving the sealing property before opening the spout, and the spout is actually completely opened after the upper edge portion of the film is cut by the easy-peel portion 6 and the easy-peel portion 8 is peeled.

Two

holes

5, 5 penetrating the film are formed in the sealing parts 2b, 2b at both ends of the upper edge of the packaging bag 1, the

holes

5, 5 are located in the peripheral part near the injection part 3, and the

holes

5, 5 are located on both sides of the injection port 3 a. The

holes

5 and 5 are hanging mechanisms for hanging the packaging bag. As shown in fig. 3, when pouring out from a pouring part or the like described later, the packaging bag 1 is suspended by hooking a jig (indicated by reference numeral 20 in fig. 3) or the like to one of the holes 5, and at this time, the pouring part 4 is positioned downward, so that the contents are easily poured out from the pouring part 4 (indicated by an arrow in fig. 3). It is also convenient to replenish water or a drug from the inlet 3a formed by opening the upper inlet 3. The

holes

5, 5 are dimensioned to receive fingers and thus also serve as a retaining mechanism for reliable finger manipulation of the package. Specifically, for example, when opening the pouring portion 3, a thumb is inserted into one of the

holes

5 and 5, another finger (e.g., an index finger) is inserted into the other hole to hold the upper side of the pouring portion 3 of the packaging bag 1 with one hand, and the easy-opening portion is cut off and opened with the other hand as described above to form the pouring port 3a shown in fig. 4. As shown by the arrows in fig. 4, water or a medicine may be replenished from the injection port 3a formed as described above.

As described above, in the present invention, by providing at least two holes on both sides of the spout portion as holding means for holding the packaging bag with fingers, the packaging bag, particularly the vicinity of the spout, can be firmly held, and the spout can be held in an open state with one hand, so that it is easy to perform operations such as refilling with water, etc., and it is possible to reduce the probability of problems such as dropping or tilting of the packaging bag, spilling of the contents, etc., and problems such as contamination of the spout due to contact with the inside of the packaging bag, etc., and an excessively large opening. In addition, since the hole also serves as a hanging means for hanging the packaging bag, the holding means can be easily formed without adding another member or the like. One of the holes may be used as a hanging means, and a finger may be inserted into the other hole to be hung and held, thereby achieving a stable unsealing operation.

The pouring part structure of the packaging bag of the invention does not mount a split part such as a molded product on the peripheral part, but uses an opening part formed by an unsealed part by cutting off the peripheral part of a sealed film as a pouring opening. When the diameter of the sprue is large, the size of the parts is increased if a molded product is used, and the bulk is increased when the sprue is stacked, stored and transported before or after the contents are stored, so that the inconvenience is caused. The above-mentioned structure of the injection part is more unstable when opening the package than when using a molded product, for example, by pulling the film with hands or cutting it with scissors, and the problem of the package falling and contents spilling due to inclination is likely to occur when replenishing water or the like, and the problem of the layer injection opening being contaminated due to the hand touching the inside of the package is likely to occur, and the present invention can stably hold the package because at least two holes are formed on both sides of the injection opening portion.

At least two holes may be formed on both sides of the spout portion, and for example, 3 or more holes may be formed according to the size of the package bag and the size of the hand. The arrangement of the holes is not particularly limited as long as the part forming the inlet can be stably held by being pinched by fingers.

The shape of the hole is not particularly limited as long as the finger can be caught when the packaging bag is handled, and examples thereof include a circular or substantially circular hole of the hole 5 in the packaging bag shown in fig. 1, and a slit shape (shown by reference numeral 12 in fig. 5) shown in fig. 5. As for the size of the hole, for example, when the hole is circular or substantially circular, the diameter is preferably 8 to 30mm, for example, when the hole is designed in the shape of a slit, the length is preferably 30 to 60mm, and there is no problem in the strength of the size and the size can be easily held by fingers. As shown in fig. 6, the peripheral portion of the hole may be left unsealed. In fig. 6, a portion which is not sealed (unsealed portion) is denoted by reference numeral 16. Since the film is not sealed at the peripheral portion of the hole, and the unsealed portion is more flexible than the sealed portion, and the end portion where the film is caught by a finger is bent or the like, the finger does not easily directly touch the sealed edge, and therefore, finger pain is not caused. The width of the portion which is not sealed can be set as appropriate depending on the size of the package bag and the hole. Instead of penetrating the film, the peripheral portion of the hole may be partially left, and a slit hole (indicated by

reference numerals

13, 13 ', 13 ″) as shown in fig. 7(a) to (c) may be formed in the left peripheral portion (see

reference numerals

13, 13 ', 13 ″) as shown in fig. 7(a) to (c), or a half-cut through (indicated by reference numeral 13 ' ″ in fig. 7 (d)) may be formed as shown in fig. 7(d), and the slit hole or the half-cut through may be ruptured as shown in fig. 7(e) when used, so that the portion of the film (indicated by reference numeral 14 in fig. 7 (e)) is kept attached to the package bag main body. Therefore, the film connected with the packaging bag main body can be bent, the end part of the film is not easy to touch fingers, and finger pain can not be caused. The effect is even better if the film portion is attached above the position of the package body and is retained by the film fold. It is also possible to design the hole part as a through hole so that the above-mentioned sewing hole or half-cut is easily broken.

The upper edge may also be downwardly convex in shape when used as a finger-retainable retention mechanism. When the film is formed into the above shape, the convex upper edge portion is bent when held by a finger, and the film is held by the bent portion of the film, so that the end portion of the film is less likely to contact the finger, and finger pain is not caused, and the effect is more excellent. The film at the upper edge of the hole may be designed as an unsealed portion which is not sealed. If the upper edge of the hole is not sealed, the convex upper edge is easier to bend and the effect is better because the unsealed part is softer than the sealed part.

Fig. 12 and 13 show an embodiment in which the upper edge portion is formed to protrude downward when the above-described hole is used as a holding means which can be held with fingers. Fig. 12 is a front view of a packing bag according to another embodiment of the present invention, and fig. 13 is an enlarged view of a hole of the packing bag shown in fig. 12. The packaging bag shown in fig. 12 is an embodiment of the packaging bag shown in fig. 1, in which the hole 5 has a different shape, and the same reference numerals are used for the parts overlapping with the structure of the packaging bag shown in fig. 1. In the packaging bag shown in fig. 12, as shown in fig. 13, when the packaging bag is used as a holding mechanism which can be held by fingers, the lower edge portion 50a is semicircular, and the upper edge portion 50b is convex downward (convex portion 51). In addition, the film at the upper edge of the hole 50 is designed as an unsealed portion 52. When the above-described structure is used, if the upper edge portion of the hole is formed to protrude downward when used as a holding means which can be held by fingers, the shape of the hole other than the upper edge portion is not particularly limited, and a circular shape, a substantially circular shape, an elliptical shape, a substantially quadrangular shape, or the like may be used, or a combination of the above-described shapes may also be used. The shape of the upper edge portion in a convex shape and the range of the unsealed portion are not particularly limited as long as the effect that the end portion of the film after bending is not easily touched by a finger is not hindered.

In the present invention, when holding the packing bag with fingers, it is preferable to design the rigidity of the connecting line portion of the injection part, which connects both sides of the injection opening portion and connects the holes, to be greater than the other portions in order to improve stability and facilitate handling. With the above structure, the film of the package body is not easily twisted when opened, so that the opening operation is easily performed, and the spout can be opened by slightly applying force from the left and right sides to the inner side of the spout with a finger inserted into the hole of the holding mechanism after the opening operation is performed, so that the pouring operation is stably and easily performed. After the injection operation is completed, the injection port is restored to its original shape by merely reducing the force applied by the finger, and a preferable effect is obtained in terms of hygienic management.

In the method of designing the rigidity of the connecting line between the holes forming both sides of the inlet portion to be higher than that of the other portion, a linear engaging portion capable of being opened and closed is formed in the connecting line portion connecting the holes forming both sides of the inlet portion. The linear clamping part has the advantages of closing the injection opening after the completion of the supplement from the injection opening, thereby facilitating the sanitary management and simultaneously improving the rigidity of the connecting line part. Further, a member having higher rigidity than the film constituting the packaging bag may be attached to the string in a band shape.

The packaging bag of the present invention has a spout portion in addition to the spout portion in the peripheral portion 2. In the case of pouring, since the bag is hung by a mechanism for hanging the bag, it is necessary to arrange the bag so that the bag can be poured out when hung, and therefore, it is preferable to provide the pouring portion at a position opposite to the hanging mechanism, that is, a position opposite to the pouring port. In fig. 1, the lower edge portion of the package bag main body is cut inward, and a spout portion 4 is provided on one side of the cut portion. When the packaging bag 1 is suspended by hanging a jig or the like in one of the hanging mechanism holes 5 which also serves as a holding mechanism, the pouring section 4 is disposed substantially vertically downward, so that the contents can be poured from the pouring section 4 and the contents can be replenished from the pouring port 3a formed by opening the pouring section 3 provided above. In the packaging bag according to the present invention, as described above, it is more effective to arrange the pouring portion so as to be substantially vertically downward when at least one of the holes is hung as a hanging means.

In the packaging bag 1 shown in fig. 1, the spout 4 is formed by attaching the base portion thereof to the packaging bag main body by thermal bonding or the like, and at this time, the tip of the molded spout member 4a is protruded from the packaging bag main body. The front end portion of the spout member 4a is not shown in the figure, and is sealed with a lid or the like before unsealing. When pouring, the cap or the like is removed to unseal the pouring section as a pouring port, and the contents are poured out to the outside by connecting a hose or the like to the pouring port.

In the present invention, the structure of the pouring section is not limited to the above, and examples thereof include a structure in which a tube is sandwiched between films constituting the package bag main body, a portion of the film is cut off, the tube is exposed, and a hose or the like is connected to the tip of the tube to pour out the contents. The structural material, size, and mounting method of the spout member are not particularly limited as long as the required sealing performance can be achieved without affecting the contents.

In the above-described embodiment shown in fig. 1, the easy-opening portion 6 is provided in the pouring portion 3 so as to extend from the sealed portion to the sealed portion on the opposite side through the unsealed portion forming the pouring port, and the packaging bag according to the present invention is provided with the easy-opening portion for opening the pouring portion, so that the opening operation can be stably performed, and the effect is more excellent. As in the above-described embodiment of fig. 1, the easy-open portion is formed by forming a curved score at the end of the seal portion, and a linear easy-tear portion that can be easily torn by hand from the score is provided. In order to reduce the cost, a notch as shown by reference numeral 6' in fig. 8 may be formed, and the unsealing position may be marked by printing or the like so as to facilitate cutting with scissors or the like.

In addition to the above-described hanging means serving also as the holding means, the packaging bag according to the present invention may be provided with a hanging means such as a through hole or a hook alone in the sealed portion.

Embodiment 2 the packaging bag according to the present invention is not limited to the above-described embodiment, and the following arrangement of the pouring portion and the pouring portion may be mentioned as an arrangement capable of pouring at the time of hanging. FIG. 9 is a front view of a packaging bag according to another embodiment of the present invention. In fig. 9, the two film peripheral portions 22 are sealed by welding or the like to form a sealed portion (indicated by oblique lines in the figure) to form the main body of the packaging bag 21. The peripheral portion 22 of the packaging bag 21 is provided with an injection portion 23 and an injection portion 24. The pouring portion 23 is provided at a corner of the peripheral portion 22 on the upper edge portion 22a side, and an unsealed portion forming a pouring port protrudes from a corner portion of the packaging bag. Two

holes

25, 25 penetrating the film are formed in the sealed portions on both sides of the unsealed portion forming the injection port, and the

holes

25, 25 serve as a hanging means at the time of injection and a holding means at the time of operation of operating the packaging bag with a finger. The pouring section 24 is provided at a side portion facing the inlet.

Embodiment 3 fig. 10 is a front view of a packaging bag according to another embodiment of the present invention. In fig. 10, two peripheral film portions 32 are sealed by welding or the like to form a sealed portion (indicated by oblique lines in the figure) to form a main body of the packaging bag 31. The peripheral portion 32 of the packaging bag 31 is provided with a pouring portion 33 and a pouring portion 34. The pouring section 33 has the same configuration as the pouring section 3 of the packaging bag 1 shown in fig. 1, and is provided on the upper edge portion 32a side of the peripheral portion 32, and two holes 35, 35 are formed through the film in the sealed portions on both sides of the unsealed portion where the pouring port is formed, and these holes 35, 35 serve as a hanging means at the time of pouring and a holding means at the time of manipulating the packaging bag with fingers. The pouring section 34 is provided at a bottom side portion facing the inlet.

Embodiment 4 fig. 11 is a front view of a packaging bag according to another embodiment of the present invention. In fig. 11, the two film peripheral portions 42 are sealed by welding or the like as sealed portions (indicated by oblique lines in the figure) to form the main body of the packaging bag 41. The peripheral portion 42 of the packaging bag 41 is provided with a pouring portion 43 and a pouring portion 44. The injection portion 43 is provided at a corner of the peripheral portion 42 on the upper edge portion 42a side, and has a shape protruding obliquely upward from the corner of the packaging bag. Both sides of the unsealed part forming the injection port are in a shape that the sealed part protrudes to the left and right, two

holes

45, 45 penetrating the film are formed in the sealed part at both sides of the unsealed part forming the injection port, and the

holes

45, 45 are a hanging mechanism at the time of injection and a holding mechanism at the time of operating the packaging bag with fingers. The spout 44 and the filling port have the same structure as the package bag shown in fig. 1. The pouring operation is facilitated by designing the pouring portion in a shape that projects obliquely upward from the corner portion of the packaging bag.

Embodiment 5 an opening 56 is formed in an upper portion of a packaging bag 53 shown in fig. 14 when opened. In the portion 56 where the opening is formed at the time of opening, an easy-to-open portion 58 is provided across the opposite side sealing portion from the sealing portion through an unsealed portion 57 where the opening is formed, and the upper edge portion (peripheral portion) of the sealed film is removed by grasping one end of the upper side of the easy-to-open portion 58 and pulling it along the easy-to-open portion 58, so that the opening is formed in the unsealed portion 57, and the packaging bag is opened. The easy-opening portion 58 is formed by half-cutting by laser irradiation or the like. When the trajectories of the two

films

53a and 53a of the packaging bag 53 are made different from each other in forming the easy-open portion 58, the positions of the two films along the opening end cut out of the easy-open portion 58 are shifted from each other. This facilitates the clamping of each film and thus the extrusion of the neck.

The portion 56 of the packaging bag 53 shown in fig. 14, which forms the opening when opened, is provided with a locking mechanism and a snap seal 59 which can be opened and locked, the snap seal 59 being constituted by the 1 st and 2 nd members which are engaged with each other and extending over the entire width of the unsealed portion 57 which forms the opening; an easily detachable portion 61 is provided on the housing portion 55 side of the engagement seal. The easy-peel portion 61 extends across the entire width of the unsealed portion 57 forming the opening, and separates the engaging seal 59 from the holding portion 55 before unsealing, and the opening is unsealed after peeling the easy-peel portion at the time of unsealing. The engagement seal 59 is provided to close the opening after unsealing as needed. Actually, the packaging bag 53 shown in fig. 14 is completely opened after the upper edge portion of the film is cut by the easy-open portion 58, the engaging seal 59 is opened, and the easy-peel portion 61 is peeled off.

The structure of forming the opening portion 56 in the package bag shown in fig. 14 is as follows. That is, as shown in fig. 15 and 17, the snap seal 59 (locking mechanism) is composed of the 1 st member 60a having the tab tip portion 67 protruding from the base portion 69 and the 2 nd member 60b having the tab tip portion 68 protruding from the base portion 70, and the tip portions 67 and 68 are engaged with each other and locked. The 1 st and 2

nd members

60a and 60b are integrally formed with the 1 st and 2

nd base members

65 and 66, respectively. As shown in fig. 15, the upper portion of the 1 st base member 65 and the upper portion of the 2 nd base member 66 are joined by sealing

portions

65a and 66a, respectively, at the portions opposed to each other inside the

films

53a and 53a forming the package bag and forming the opening portion; the lower end portion of one of the 2 nd base members 66 is provided longer than the other 1 st base member 65, and the easy-peel portion 61 is formed by joining an easy-peel seal to the surface of the lower end portion opposite to the surface on which the upper seal portion 66a is formed, to the other thin film 53a opposed thereto. Fig. 18 shows a cross-sectional state of the opening when unsealing. As shown in fig. 15, the lower end portion of the 2 nd base member 66 serves as a partition wall to separate the locking mechanism 59 from the storage portion 55 before being opened, and therefore the locking mechanism 59 is protected from contamination by contents or the like during storage or transportation. Even if internal pressure inside the packaging bag is applied by dropping, stacking, or the like, the 2 nd base member 66 is pressed in the direction indicated by the arrow a, and the easily peelable portion is not easily peeled off in this pressure direction, so that the easily peelable portion has excellent pressure resistance and is free from problems such as breakage due to easy peeling. Further, since the locking mechanism and the peelable portion are sealed in the packaging bag by the upper sealing portion 54a of the packaging bag before being opened, the locking mechanism 59 is not contaminated from the outside, and there is no problem that the peelable portion 61 is broken to contaminate or leak the contents.

According to the packaging bag of the present invention, since the base member forming the locking mechanism is extended downward to form the easily peelable portion only by joining the film in order to attach the locking mechanism to the film forming the packaging bag, the locking mechanism is isolated from the contents with a simple structure to prevent the locking mechanism from being contaminated, and the packaging bag of the present invention is less likely to be subjected to a pressure for peeling the easily peelable portion than the packaging bag of the present invention in which two films are joined, and has excellent pressure resistance, sanitary management properties, and easy handling. Further, since the above characteristics can be easily realized by the base member having the locking mechanism, the manufacturing is easy and the cost is excellent.

The base member may be formed in the 1 st member or the 2 nd member of the lock mechanism such that the lower end portion is longer than the other base member to form the easily detachable portion.

In the packaging bag 53 shown in fig. 14, a hole 62 penetrating through the film is formed in the sealing portion in the vicinity of the opening portion 56, and serves as a hanging means capable of hanging the packaging bag. When pouring out from a pouring-out portion described later, the packaging bag 53 is suspended by hanging a jig on the hole 62 or the like, and the pouring-out portion is disposed downward, which facilitates pouring out of the contents from the pouring-out portion. The packaging bag of the present invention may have one or more holes for hanging or the like depending on the use thereof. In particular, if the discharge portion is provided and used for the discharge operation, it is preferable to provide the hole. The shape, size, arrangement, and the like of the hole may be appropriately set according to the use, size, structural material, and the like of the packaging bag. A hook or the like formed separately may be provided as the hanging mechanism.

In the packaging bag 53 shown in fig. 14, a lower edge portion of the packaging bag main body is cut inward, and a pouring section 63 for pouring out contents is provided on one side of the peripheral portion 54 of the cut portion. The packaging bag of the present invention may be provided with only a portion that forms an opening when opened, for example, for storage purposes, but may be provided with the spout portion for pouring out contents such as nutrients and flowable foods. The arrangement and structure of the pouring section are appropriately set according to the purpose of the package bag. In particular, if the contents are nutritional supplements or flowable foods, the packaging bag needs to be placed in a state in which the contents can be poured out during the pouring by the hanging means, and the pouring portion is preferably located at a position opposite to the hanging means, as shown by a hole 62 of the packaging bag 53 in fig. 14. The material, shape, size, arrangement, mounting method, and the like of the pouring section are not particularly limited, and those generally used may be used. In the packaging bag 53 shown in fig. 14, the spout 63 is formed by attaching the base of a molded spout member 64a, which forms a spout when opened, to the bag main body by thermal bonding or the like; when attached, the front end of the spout member 64a protrudes from the package main body, and the front end of the spout member 64a is sealed until it is broken and unsealed by the openable sealing member 64 b. The spout member 64a and the seal member 64b are disposed between two films formed to protrude from the package bag main body, the peripheral portions (indicated by reference numeral 54' in fig. 14) of the films are sealed, and the spout member 64a and the seal member 64b are sealed between the films. The easy-open portion 58 'is provided at the film base portion sealing the spout member 64a and the sealing member 64b, and the easy-open portion 58' facilitates cutting off the film. At the time of pouring, the film sealing the pouring outlet member 64a and the sealing member 64b is cut off by the easy-to-open portion 58', the sealing position is broken by screwing the sealing member 64b, and after the sealing member 64b and the film are removed, the pouring outlet member 64a is exposed, and the pouring outlet is opened. The outlet may be connected to a hose or the like to discharge the contents to the outside. By sealing the spout member 64a and the sealing member 64b with a film, the spout can be prevented from being contaminated before being unsealed. The pouring section may be configured by sandwiching a tube between films constituting the package bag main body, cutting off a film portion to expose the tube, and connecting a hose or the like to the tip of the tube to pour out the contents.

In the above-described embodiment shown in fig. 14, the portion 56 where the opening is formed at the time of opening is opened, and the easy-opening portion 58 is provided from the sealing portion to the sealing portion on the opposite side across the unsealed portion 57 where the opening is formed, and the packaging bag according to the present invention is advantageous in that the easy-opening portion facilitating removal of the peripheral portion of the film is provided at the portion where the opening is formed, thereby stably performing the opening operation. In the above embodiment, the end portion of the seal portion is formed with a curved score as the easy-open portion, and a linear easy-tear portion is provided to facilitate hand-tearing from the score. In order to reduce the cost, only a notch may be formed or the opening position may be marked by printing or the like so as to facilitate cutting with scissors or the like. In the present invention, it is preferable that the position of the opening end cut by the easy-open portion is different between the two films when the easy-open portion is formed, and specific examples thereof include the above-mentioned embodiments in which the two films forming the packaging bag are formed with the easy-open portion such as half-cut portions having different trajectories, and the positions of the opening end are shifted from each other after the two films are cut along the easy-open portion. Fig. 19 shows a state in which the two films are displaced from each other at the position of the opening/closing end (indicated by

reference numerals

71a and 71b in fig. 19) after the opening.

According to the structure of the packaging bag of the present invention, it is preferable that the 1 st and 2 nd base members forming the 1 st and 2 nd members of the locking mechanism are not exposed to the outer edge of the sealing portion for sealing the peripheral edge portion of the film. Since the base member is not exposed to the outer edge of the seal portion, that is, the ends of the locking mechanism and the easy-to-peel portion are not exposed to the outer edge of the seal portion, the strength of the seal portion is not reduced, and the package bag is less likely to be broken to cause leakage of contents and deterioration of the sealing property when dropped. In particular, due to the easy peeling property of the easy peeling portion, if the end portion is exposed to the outer edge portion of the sealing portion, the inside of the packaging bag communicates with the outside when the packaging bag is peeled off due to a drop or damage during handling, and the like, and thus, there occurs a problem in terms of leakage of the contents and hygiene.

In the packaging bag according to the present invention, when the locking mechanism adopts the above-described embodiment, that is, the snap seal method constituted by the tab 1 st member and the tab 2 nd member protruding from the base portion, the sealing property of the opening portion is formed more effectively. If the snap seal does not employ the separation by the easy peel portion as in the present invention, the internal pressure of the contents may cause disengagement at the time of storage or at the time of transportation and the contents may be attached to the engagement portion to cause insufficient engagement.

In the packaging bag according to the present invention, it is preferable that the snap seal is formed such that the tip of the 1 st member of the tab has an elliptical cross-sectional shape perpendicular to the longitudinal direction, the recess of the 2 nd member of the tab has a cross-sectional shape perpendicular to the longitudinal direction substantially equal to the cross-sectional shape of the tip of the 1 st member, and a gap is formed only in the vicinity of the base of the 1 st member between the tip of the 1 st member and the tip of the 2 nd member when the 1 st and 2 nd members are engaged with each other. Figure 17 shows a cross-sectional view of an embodiment of the snap seal arrangement. The snap seal shown in fig. 17 is composed of a tab 1 st part 60a formed integrally with a 1 st base member 65 and a tab 2 nd part 60b formed integrally with a 2 nd base member 66. The 1 st member 60a is composed of a tip portion 67 and a base portion 69 connected to the base member; the 2 nd part 60b is formed of a tip portion 68 and a base portion 70 connected to the base member. The cross-sectional shape perpendicular to the longitudinal direction of the tip portion 67 of the 1 st member 60a is an elliptical shape; the cross-sectional shape perpendicular to the longitudinal direction of the distal end portion 68 of the 2 nd member 60b is a concave portion, and the cross-sectional shape of this concave portion is substantially the same as the cross-sectional shape of the 1 st member distal end portion 67. When the 1 st and 2 nd members are engaged, a gap is formed only in the vicinity of the 1 st member base 69 between the 1 st member tip end portion 67 and the 2 nd member tip end portion 68. With the above configuration, when the 1 st and 2 nd members are engaged, the tip end portion 67 is brought into close contact with the tip end portion 68 to improve the sealing property, and the cross-sectional shape of the engaged portion is designed to be elliptical to enhance the engagement strength between the 1 st member tip end portion 67 and the 2 nd member tip end portion 68, so that the disengagement is not easily caused even when the internal pressure of the housing portion is increased. When disengaged, the slit is hooked with a finger to easily disengage the snap seal.

Embodiment 6 the spout member S shown in fig. 20 is mainly composed of a lid portion 72, a spout portion 73, and a sealing portion 81. The pouring section 73 is composed of a base section 85 and a cylindrical section 80 protruding from the base section 85. The sealing portion 81 seals the distal end portion of the cylindrical portion 80 in the pouring portion 73 via a breakable weak portion 81a, and the sealing portion 81 is supported on the inside of the distal end portion of the lid portion 72 as described later. The lid portion 72 is rotated leftward or rightward as shown by an arrow a in fig. 20 to break the fragile portion 81a and separate the lid portion 72 and the sealing portion 81 from the pouring portion 73, and at the same time, the distal end portion of the tube portion 80 is unsealed to form a pouring port. The lid 72 is shaped to cover the entire barrel 80, and the lid 72 and the pouring section 73 are provided with a locking mechanism capable of locking the lid 72 to the pouring section 73.

In the spout member of the present invention, the "breakable fragile portion" refers to a portion which is processed to reduce the strength from the material aspect, or a portion which is made thinner or partially thinned so that the strength of the portion is lower than that of the other portion.

The cap 72 of the spout member S shown in fig. 20 is mainly composed of a cap main body 74, a support portion 75 provided inside the front end portion of the cap main body 74, and an auxiliary unsealing portion 76, and a flange portion 77 and a notch portion 78 are provided at the lower portion of the cap. The flange portion 77 and the notched portion 78 together with a locking portion 83 and a protrusion 84 in the spout portion 73 described later constitute a locking mechanism that can be locked to the spout portion 73 after the lid portion 72 is separated.

The cap main body 74 is preferably shaped to cover and protect the cylindrical portion 80 of the spout member S as a whole, and the gap between the inner surface of the cap main body and the outer surface of the cylindrical portion is preferably not more than a resealable level, which is advantageous in view of breakage resistance. The support portion 75 supports a seal portion 81, and the support seal portion 81 seals the front end portion of the cylindrical portion 80; the support portion 75 also prevents the seal portion 81 from coming off after unsealing. As shown in fig. 21 and 22, the sealing portion 81 seals the distal end portion of the tube portion 80 via a breakable weak portion 81a before being opened, the breakable weak portion 81a being formed in the circumferential direction of the distal end portion of the tube portion. A lateral projection 81b is provided on the upper side of the side surface of the sealing portion 81 and supported by the cover support portion 75. 4 protruding guide portions 79 are formed inside the cover main body 74, and as shown in fig. 23(b), the side surface portions of the seal portion 81 are supported by the cover guide portions 79 to prevent the seal portion 81 from moving laterally. As shown in fig. 23, after the sealing is opened, the support portion 75 and the guide portion 79 support the sealing portion 81 to prevent the lid portion from falling off downward. The lid portion is sealed as shown in fig. 23 (c). The lower surface of the sealing portion 81 has a shape that can be fitted to a spout 82 described later after the lid portion is separated, and the sealing portion 81 can be resealed by fitting to the spout 82. By designing the fragile portion 81a to be a thin portion having a thickness of 0.15m m or more and 0.2m m or less, a smooth fracture surface having no burr can be formed at the distal end portion (inside the spout) of the barrel portion after fracture. In the above-described embodiment of the present invention, the cap portion can be used to reseal the spout after the cap portion is separated, as necessary, which is more effective in terms of workability and the like.

The auxiliary opening portion 76 is a pair of plate-like portions protruding outward in the left-right direction from the front end of the lid portion. The auxiliary unsealing portion is preferably adapted to facilitate the screwing of the lid portion when unsealing. The shape of the auxiliary opening portion is not particularly limited, and may be a substantially rectangular shape, a semicircular shape, or the like, in addition to a shape in which the spout member is obliquely raised in fig. 20, or may be provided on only one of the left and right upper surfaces.

The pouring section 73 of the pouring port member S in fig. 20 is mainly constituted by a base section 85 and a cylindrical section 80 projecting from the base section 85.

Annular projections

80a, 80b, 80c for locking the hose are provided on the outer surface of the side portion of the cylindrical portion 80. As described above, the cap is screwed to break the seal portion and the distal end portion of the cylinder is unsealed, thereby forming the spout 82 shown in fig. 24.

The base portion 85 has a boat shape extending in the left-right direction, and has a plurality of linear reinforcing portions 85a on the side portions thereof to enhance strength and to make the seal portions close. The shape of the base is not particularly limited, and the shape is preferably designed because the boat shape can be easily manufactured and can be closely attached to the seal portion.

Two locking portions 83 are provided on the upper surface of the base portion 85, and two protrusions 84 are provided on the side surface of the cylindrical portion 80. These portions constitute a locking mechanism with the flange portion 77 and the notch portion 78 of the lid portion 72. The flange portion 77 of the lid portion 72 is locked by the locking portion 83 of the pouring portion 73, and the lid portion 72 is prevented from moving in the vertical direction. The notch portion 78 of the lid portion 72 is locked by the projection portion 84 of the pouring portion 73, and the lid portion 72 is prevented from moving in the left-right rotational direction. Normally, when the lid portion receives no force in the lateral rotation direction from the outside, the lid portion 72 is locked by the spout portion 73, and when the lid portion receives a force in the lateral rotation direction, the locking is released due to the flexibility of the notch portion 78 and the protrusion portion 84, the flange portion 77 rotates along the concave portion of the locking portion 83, and when the notch portion 78 rotates 90 degrees to the locking portion 83, the locking between the lid portion and the spout portion is released at the notch of the flange portion 77. Since the seal of the sealing portion is broken at this stage when unsealing, the cap portion can be separated and the spout opening can be unsealed, and the reverse operation can be performed to lock the cap portion to the spout portion and reseal the spout opening. The locking mechanism of the present invention is not limited to the above.

The spout member of the present invention preferably includes a plurality of annular protrusions for engaging the hose on the outer surface of the spout cylindrical portion as in the above-described embodiment. Since there are many kinds of tube diameters of the hoses connected to the outlet, the annular projection for locking the hose can be provided with a plurality of annular projections having different outer diameters in advance according to the inner diameter of the hose, and various hoses can be connected without using a connecting jig and without a risk of falling off. Of course, if only a specific hose is used, only one annular projection may be provided.

The spout member of the present invention can be generally produced by injection molding or the like using a thermoplastic resin such as polyethylene or polypropylene used for the spout member. As long as the above-described form is provided, the dimensions of the whole and the respective portions are not particularly limited within a range not to impair the operation of the present invention, and are set as appropriate depending on the viscosity of the content to be poured, the pouring speed, and the like.

The following further describes an embodiment of a packaging bag using the spout member of the present invention. FIG. 25 is a front view of a packaging bag equipped with the spout member shown in FIG. 20; fig. 26 is an enlarged view of a spout member sealing portion of the packaging bag shown in fig. 25, and fig. 27 is a Y-Y sectional view of the spout member sealing portion shown in fig. 26. The packaging bag 86 shown in fig. 25 is sealed by welding peripheral portions of two films or the like to form a 1 st seal portion 87 to form a storage portion 88. When the contents are filled, a part of the peripheral portion of the packaging bag is formed as an unsealed portion and the remaining portion is formed, the content is filled into the unsealed portion as a filling port, and the unsealed portion is sealed again.

In the packaging bag 86 shown in fig. 25 to 27, the lower edge of the storage portion 88 is cut out, and a spout member sealing portion 95 for pouring out the contents is provided on one side of the peripheral portion 87 of the cut-out portion. The spout member sealing portion 95 is formed as follows: the spout member S shown in fig. 20 is disposed between two films (indicated by

reference numerals

95a and 95a in fig. 27) constituting the packaging bag, with the cylindrical portion 80 of the spout portion projecting from the housing portion; when the 1 st sealing part is formed between the films of the 1 st sealing part 87, the base part 85 of the pouring part is fixed by thermal bonding or the like; the sealed 2 nd sealing portion 96 sandwiches the lid portion 72 between the

films

95a and 95a, thereby sandwiching the lid portion 72 between the films.

In the packaging bags shown in fig. 25 to 27, the

films

95a and 95a constituting the spout member sealing portion 95 located at the tip end side of the base portion 85 of the spout member S are cut off, and the films 95a and the lid portion 72 of the spout member are rotated to separate the lid portion 72 and the sealing portion 81 from the spout portion 73 and open the spout, and the tube portion of the spout member is exposed, whereby an operation such as connecting a spout hose can be performed. And a cap portion of the spout member separated in a state of being accommodated between the cut films while maintaining a state of the sealing portion. The lid portion has a shape covering the entire barrel portion and can be locked to the barrel portion as needed, so that the sanitary property of the spout can be maintained even after the unsealing. Since the lid portion is separated in a state of being sandwiched between the films, the possibility of the lid portion being inadvertently detached from between the films or contaminated on the floor or the like after separation can be reduced, and the lid portion can be discarded together with the films without being reused.

According to the packaging bag of the present invention, since the spout member is sealed to the packaging bag by the film, excellent hygienic management can be provided before the spout member is opened, and even if the spout member is formed of a material having low barrier properties such as cyclopolyolefin, the barrier properties as the spout portion can be enhanced by providing the film constituting the packaging bag with barrier properties, and a function such as light-shielding properties which is difficult to be achieved due to the restriction of the material of the spout member can be provided by the film constituting the packaging bag, and the packaging bag as a whole can be provided with excellent quality management. Since the spout member is held by the film, the spout member is not easily moved in the package bag, and accidental opening or the like due to breakage or the like of the fragile portion can be prevented, and excellent breakage resistance is obtained. Further, as described above, since it is not necessary to touch the spout member at the time of unsealing, excellent contamination resistance is obtained and unsealing is easy.

In the packaging bag according to the present invention, the lid portion is sandwiched between the films means that the lid portion is not fixed to the films but held by the surrounding seal portion at the range of the 2 nd seal portion. Since the 2 nd sealing portion is designed to have a shape along the outer side of the lid portion, the holding property and the breakage resistance can be improved, and the opening can be easily performed, particularly when the lid portion has a shape having the auxiliary opening portion as in the above embodiment, a shape in which the 2 nd sealing portion protrudes and an auxiliary sealing portion in which the 2 nd sealing portion is partially separated may be provided on the lower side of the auxiliary opening portion as shown in fig. 26. When the lid portion needs to be taken out from between the films and the shape of the lid portion needs to have the auxiliary opening portion, the 2 nd sealing portion is preferably designed so as not to protrude below the auxiliary opening portion.

The spout sealing portion 95 is provided with an easy-open portion 97, and the easy-open portion 97 is used to cut off the

films

95a and 95a on the tip side from the base portion 85 of the spout. In the packaging bag according to the present invention, the easy-opening portion is provided in the spout member sealing portion as described above, so that the film can be easily cut off to facilitate opening, and the spout member sealed inside can be prevented from being touched by a finger or the like due to careless cutting of the vicinity of the distal end of the spout member sealing portion. Examples of the method of forming the easy-open portion include a method of forming a half-cut groove in a film constituting the packaging bag by laser or the like; a method for forming other layers after perforating seam pinholes on a substrate film of the film; a method of forming a score such as a curved, linear, or triangular shape at an end of the seal portion; in order to reduce the cost, the seal-opening position may be marked by printing or the like, and the above-described methods may be used in combination, for example, by cutting with scissors or the like. Further, when the easy-to-open portion 97 is provided at the tip end side of the skirt portion of the spout member lid portion (corresponding to the flange portion 77 and the vicinity thereof in the spout member S in fig. 20), that is, at the spout outlet side, the film is cut off and separated, and then the skirt portion of the lid portion is exposed from the film, and the spout is easily resealed.

In the present invention, when the easy-opening portion is formed, the opening end cut by the easy-opening portion is bent so that the intermediate portion is closer to the base shape of the spout portion than the opening start position and the opening end position, and the spout member can be opened with a small force together with the film.

In the present invention, the arrangement and structure of the spout member sealing portion may be appropriately set according to the use of the packaging bag or the like. In particular, if the contents are nutrients and flowable foods, the packaging bag is hung by a hanging means at the time of pouring, so that it is necessary to adopt an arrangement capable of pouring at the time of hanging, and particularly, it is preferable to provide a spout member sealing portion at a position opposite to the hanging means, as shown in a hole 94 in the packaging bag 86 shown in FIG. 25 described later. The spout member sealing portion is suitably provided according to the purpose using the above-described spout member of the present invention as a structural material, shape, size, arrangement, and mounting method.

According to the packaging bag of the present invention, if the contents are nutritional supplements, flowable food, and the like, and it is necessary to supplement a drug, moisture, or the like, the injection portion may be provided in the peripheral portion of the sealing film. The upper portion of the packaging bag 86 shown in fig. 25 forms an injection portion 89. The injection portion 89 is formed by cutting off the upper edge portion (a part of the peripheral portion) of the film to be sealed, thereby forming an opening portion by the unsealed portion 90. The injection portion 89 is provided with an easy-open portion 91 extending from the sealing portion to the sealing portion on the opposite side through the unsealed portion 90, and the upper edge portion (a part of the peripheral portion) of the sealing film is removed by grasping one end of the upper side of the easy-open portion 91 and pulling it strongly along the easy-open portion 91. In the packaging bag according to the present invention, the pouring portion is preferably provided with an easy-opening portion for facilitating cutting of the peripheral portion of the film, and the opening operation can be performed more stably. The easy-open portion may be the same as the easy-open portion in the spout member sealing portion. As shown in fig. 25, a curved notch is formed at the end of the seal portion, and the linear easy-to-tear portion is easily torn by hand, and the easy-to-open portions having different trajectories are formed in the two films forming the packaging bag, so that the films are shifted from each other at the position where the easy-to-open portion is cut and the end is opened, and the injection portion is easily pushed out by grasping each film. Specific examples of the method include forming easy-open portions such as half-cuts having different tracks on two films forming the packaging bag.

The packaging bag 86 shown in fig. 25 is provided with a snap seal 92 at the injection portion, the snap seal 92 extending across the entire width of the unsealed portion 90 as a locking mechanism that can be opened and locked; an easily detachable portion 93 is provided on the side of the engaging and sealing receiving portion 88. The easy-to-peel portion 93 extends across the entire width of the unsealed portion 90, separates the engagement seal 92 from the holding portion 88 before being unsealed, and unseals the injection portion by peeling at the time of unsealing. The engagement seal 92 is provided to lock the injection portion after unsealing as needed. In the packaging bag 86 shown in fig. 25, the upper edge portion of the film is actually cut by the easy-peel portion 91, and the easy-peel portion 93 is peeled off before the bag is completely opened. The form of the injection portion is not limited to the above embodiment, and a structure in which a molding member is attached to the sprue member may be adopted. In this case, since the spout member is sealed with the film as in the spout member sealing part according to the present invention, excellent hygienic management, quality management, and breakage resistance of the spout member are provided.

The packaging bag 86 shown in FIG. 25 has a hole 94 formed through the film in the sealed portion near the pouring portion 89, and serves as a hanging means for hanging the packaging bag. When the packaging bag 86 is hung down by hanging a jig on the hole 94 or the like at the time of pouring out the contents from the pouring section, the pouring section is arranged downward, which facilitates the pouring out of the contents from the pouring section. The packaging bag of the present invention may have one or more holes for hanging or the like depending on the use thereof. In particular, if the discharge portion is provided and used for the discharge operation, it is preferable to provide the hole. The shape, size, arrangement, and the like of the hole may be appropriately set according to the use, size, structural material, and the like of the packaging bag. A hook or the like formed separately may be provided as the hanging mechanism.

In the present invention, the film constituting the package bag main body may be used by folding one film, or a plurality of films may be joined. The material of the film is not particularly limited, and materials conventionally used for pouches can be used. Examples of such a material include various film substrates such as biaxially oriented cyclic polyolefin resin films, biaxially oriented polyamide resin films, biaxially oriented polyester resin films, and ethylene-vinyl alcohol copolymer films, and composite films in which an olefin-based heat-bonding resin such as low-density polyethylene, linear low-density polyethylene, ethylene-vinyl acetate copolymer, or polypropylene is laminated as a sealant layer on these substrates. In order to improve the protection performance against the contents, a multilayer single layer film, a metal foil, a composite film, a film obtained by laminating silicon oxide, aluminum oxide, or the like on the composite film may be used. Particularly, if a film in which an aluminum oxide layer is laminated on a laminated film of biaxially oriented polyethylene terephthalate or biaxially oriented polyamide is used as the substrate, excellent barrier properties and aroma-holding properties can be obtained, and after filling, a pin-hole tester or a metal detector can be used and heating with a microwave oven can be carried out. The thickness of each thin film may be generally 10 to 150 μm, and the overall size may be set as appropriate according to the capacity. In forming the packaging bag, the peripheral portion is sealed by a heat-sealing sealant layer or the like depending on the structure of the film. When the retort sterilization treatment is required, the material of the film, the pouring part, and the like constituting the packaging bag may be selected in advance.

The shape of the storage portion of the packaging bag according to the present invention is not particularly limited as long as the peripheral portion of the film is sealed, and if the packaging bag according to the present invention is used to store tube-through enteral nutrients, tube-through enteral food, and the like, a standing portion (gusset) may be provided on the bottom surface portion and the like in consideration of ease of handling during transportation and blanching with hot water. If the standing portion is provided, the self-standing property of the packaging bag is improved and the capacity is also increased. The standing part may be formed in a gusset shape, and may be provided with a standing part on a side surface part or a top surface part other than the injection part and the injection part to increase the capacity.

In forming the storage portion of the packaging bag according to the present invention, the shape and width of the seal at the film peripheral portion may be changed to form the hole, hook portion, and the like in the above embodiments as long as the seal can be formed. Example 1

A packaging bag 1 similar to that shown in FIG. 1 was produced by laminating a polyethylene terephthalate (PET) film having a thickness of 12 μm, a Polyamide (PA) film having a thickness of 15 μm, and a Linear Low Density Polyethylene (LLDPE) film having a thickness of 100 μm in this order via an adhesive layer, wherein the LLDPE film side was heat-sealed at its peripheral edge as a sealant layer, and a linear engaging portion 7 and a readily releasable portion 8 were formed at an injection portion, as

films

1a and 1a in the packaging bag 1 shown in FIG. 1. At this time, the base portion of the spout member 4a made of High Density Polyethylene (HDPE) resin is heat-bonded to one side of the peripheral portion in a state of being sandwiched between films, and then the spout portion 4 is formed. Two holes are opened in the sealing parts on both sides of the unsealed part forming the inlet 3a to form through

holes

5, 5 as a hanging means and a holding means. The general size of the packaging bag is 200mm in width (about 180mm in width of the containing part), 240mm in height, 5-10 mm in sealing width, and 40-50 mm in sealing width of the part forming the through hole. The through hole is in a circular shape with the diameter of 20 mm. When the contents are filled, the peripheral portion of the packaging bag is formed as an unsealed portion, and thereafter the contents are filled into the packaging bag using the unsealed portion as a filling port, and the unsealed portion is sealed by heat fusion. The spout is opened by tearing the easy-to-open portion 6 of the pouring portion and peeling the easy-to-peel portion 8, thereby forming a spout 3 a. The through

holes

5, 5 are hooked with two fingers to open the inlet 3a and supply water into the package bag. After completion of the replenishment, the inlet is closed by the linear engagement portion 7. Then, the packaging bag is moved to a lower hanging table in a state where the through

holes

5 and 5 are hung by two fingers, the packaging bag 1 is hung downward by a jig while the through hole 5 facing the spout 4 is hung, and the spout member 4a is opened to spout the contents. Example 2

As the

films

53a and 53a in the packaging bag 53 shown in FIG. 14, laminated films were prepared by laminating a polyethylene terephthalate (PET) film having a thickness of 12 μm, a Polyamide (PA) film having a thickness of 15 μm, and a Linear Low Density Polyethylene (LLDPE) film having a thickness of 100 μm in this order via adhesive layers, and an alumina (Al2O3) containing film having a barrier property, and the peripheral portions of the LLDPE films were heat-welded with the LLDPE film side as a sealant layer. At this time, as shown in fig. 14, a snap seal 59 and an easily peelable portion 61 are provided as a locking mechanism inside the film forming the opening portion 56 at the time of unsealing, wherein the easily peelable portion 61 is used to protect the snap seal 59 before unsealing. As shown in fig. 15, the 1 st base member 65 having the tab 1 st member 60a of the engaging seal 59 and the 2 nd base member 66 having the tab 2 nd member 60b are disposed inside the thin films facing each other with the opening formed; bonding the upper part of each base member to the inner side of the thin film; the lower end portion of the 2 nd base member 66, the lower end portion of which is longer than the 1 st base member 65, is joined to the lower side portion of the locking mechanism of the other film placed opposite thereto by an easy peel seal, thereby forming an easy peel portion 61. The 1 st, 2 nd members and the base member for the engagement seal are each formed using Linear Low Density Polyethylene (LLDPE), and an easy-peel tape is joined to the lower end portion of the 2 nd base member 66. As shown in fig. 14, in the spout portion 63, a spout member 64a made of a High Density Polyethylene (HDPE) resin and a seal member 64b at the tip end portion thereof are disposed between two films formed so as to protrude from the package bag main body; the base of the spout member 64a is attached to the package bag main body by thermal bonding to seal the peripheral edge of the film; the spout member 64a and the sealing member 64b are sealed between the films. Further, the through hole 62 is formed by punching as a suspending means. The general size of the packaging bag is 200mm in width (about 180mm in width of the containing part), 240mm in height, 5-10 mm in sealing width, and 40-50 mm in sealing width of the part forming the through hole. The through hole is in a circular shape with the diameter of 20 mm. When the contents are filled, the peripheral portion of the packaging bag is formed as an unsealed portion, and thereafter the contents are filled into the packaging bag using the unsealed portion as a filling port, and the unsealed portion is sealed by heat fusion. The opening is opened by tearing the easy-to-open portion 58 and peeling the easy-to-peel portion 61 with the snap seal 59, and the unsealed portion 57 forms an opening. The packaging bag 53 is suspended by the jig from the through hole 62, and after the water is supplied to the packaging bag through the engagement seal of the opening, the engagement seal is closed, and the contents are poured out by opening the pouring section 63.

The opening of the packaging bag of example 2 was opened, 600ml of water was filled into the opening, and the bag was left standing in the lateral direction in a state where the opening was engaged with the engagement seal and closed, and as shown in table 1, leakage from the engagement seal was visually confirmed without pressurization or 10 minutes after pressurization. The number of tests was 30 bags. The test results are shown in table 1.

As can be seen from the results of table 1, the packaging bag according to the present invention has excellent pressure resistance with the snap seal.

[ Table 1]

	Example 2
		Not pressurized	Non-leakage

Pressing 300g	Non-leakage
		Pressing 600g	Non-leakage

Example 3

A lid portion made of a high-density polyethylene resin having a thickness of 1mm and a height of 35mm and having a shape shown in FIG. 20 was prepared by injection molding. Further, a spout part and a seal part each having a shape shown in fig. 20 were integrally molded using a high-density polyethylene resin, wherein the spout part had a base width of 30mm, a base height of 10mm, and a tube part height of 30mm, and a thin part (fragile part) having a thickness of 0.2mm was interposed between the spout part and the seal part at the distal end of the tube part. The sealing part is fitted to the lid support part to form the spout member. Example 4

A spout member was formed in the same manner as in example 3, except that the thickness of the thin-walled portion was 0.18 mm. Example 5

An outlet member was formed in the same manner as in example 3, except that the thickness of the thin-walled portion was 0.15 mm. Example 6

A laminated film obtained by laminating a polyethylene terephthalate (PET) film having a thickness of 12 μm, a Polyamide (PA) film having a thickness of 15 μm, and a Linear Low Density Polyethylene (LLDPE) film having a thickness of 100 μm in this order with an adhesive layer interposed therebetween, and having a barrier alumina (Al2O3) contained therein, was used as the film in the packaging bag 86 shown in FIG. 25, wherein the LLDPE film side was heat-sealed at the peripheral portion thereof as a sealant layer. At this time, as shown in fig. 25, an engagement seal 92 and an easy-to-peel portion 93 of the opening portion for protecting the engagement seal 92 before being opened are provided as a locking mechanism inside the film which becomes the injection portion 89 at the time of opening. As shown in fig. 25, the spout member sealing portion 95 is disposed between two films constituting the packaging bag in a state where the cylindrical portion 80 of the spout portion protrudes from the housing portion 88, with the spout member of example 3 as the spout member S; when forming the 1 st seal portion, the base portion 85 of the pouring portion is fixed between the films in the 1 st seal portion 87 by thermal bonding or the like; and sealed with the 2 nd sealing portion 96 that seals between the films around the lid portion 72 with the lid portion 72 sandwiched between the films. Further, a through hole 94 is formed by punching as a suspending means. The general size of the packaging bag is 200mm in width (about 180mm in width of the containing part), 240mm in height, 5-10 mm in sealing width, and 40-50 mm in sealing width of the part forming the through hole. The through hole is in a circular shape with the diameter of 20 mm. When the contents are filled, the peripheral portion of the packaging bag is formed as an unsealed portion, and thereafter the contents are filled into the packaging bag using the unsealed portion as a filling port, and the unsealed portion is sealed by heat fusion. The injection portion is opened after the easy-to-open tear portion 91 is torn off and the easy-to-peel portion 93 is peeled off by the snap seal 92, and the unsealed portion 90 forms an opening. After the packaging bag 86 is suspended from the hole 94 by a jig and the engaging seal 92 of the pouring section is opened to supply water to the inside of the packaging bag, the engaging seal 92 is closed, the film constituting the pouring section sealing section 95 located on the front end side of the base section 85 of the pouring section member S is cut off, the film is integrally screwed, the pouring section is opened by separating the lid section 72 and the sealing section 81 from the pouring section 73, and the hose is connected to the tube section 80 and poured out. Example 7

A packaging bag was produced in the same manner as in example 6, except that the spout member of example 4 was used as the spout member S.

Experimental example 1 with respect to the spout member of examples 3 to 5, the cap was separated from the spout portion by screwing the cap to break the fragile portion (thin portion), the spout was unsealed, and the broken surface of the spout was visually observed. The results are shown in Table 2. From the results in Table 2, it is understood that the burr and the stringiness phenomenon were found only in the thin wall portion of example 3 having a thickness of 0.2mm at the fracture surface. In actual use, some burrs and stringings can still be used, but no burrs or stringings are preferred.

Test example 2 the test was performed 10 times in total in which the spout portion was dropped from a height of 1.2m after 400ml of water was contained in the packaging bags of examples 6 and 7 and sealed, and leakage of the spout portion was visually confirmed every time the spout portion was dropped, and breakage of the thin wall portion of the sealed portion was confirmed by the dye penetrant testing liquid in the packaging bags in which leakage was not visually confirmed after 10 drop tests. In comparative example 1, the same test was carried out on the configuration in which the outlet member header was not covered with the film and exposed in example 4. The results are shown in Table 3. As is apparent from the results of table 3, the packaging bag according to the present invention has excellent easy-opening property, sanitary management property, quality management property by sandwiching the spout member between the films, and also has excellent breakage resistance even if the spout portion is formed to have a smooth fracture surface free from burrs by further reducing the thickness.

[ Table 2]]

	Visual observation of fracture surface
		Example 3	Burrs and stringiness were observed
Example 4	No burr and no wire drawing
		Example 5	No burr and no wire drawing

[ Table 3]]

	Visual observation result after falling	Confirmation by test solution
			Example 6	After 1-10 times of dropping, no abnormality occurs	There was no abnormality
Example 7	After 1-10 times of dropping, no abnormality occurs	There was no abnormality
			Comparative example 1	After 1-10 times of dropping, no abnormality occurs	The thin-wall portion being broken to cause penetration

Possibility of industrial application

The packaging bag according to the present invention ensures stability and hygiene when the packaging bag is kept during operations such as refilling and opening of the spout, and is suitable for applications such as filling liquid from the outside in addition to contents to be poured out, and particularly suitable for applications such as containing an enteral nutrient and an enteral food by replenishing water from the outside before and after and during pouring out of the contents. And can protect the locking mechanism from contamination of contents and the like during storage or transportation, which has excellent hygienic manageability and is easy to operate; and has excellent pressure resistance when the inside of the packaging bag is subjected to internal pressure, and therefore, the packaging bag is suitable for packaging bags having a locking mechanism at the opening portion in order to keep the sanitation and quality management of the contents, and is particularly suitable for packaging bags for applications requiring sanitary management such as containing an enteral nutrient and an enteral food. The packaging bag using the spout member of the present invention can keep the spout member sanitary before being opened, is not easily broken, can be resealed to cover the spout, is easy to handle, can be easily manufactured, and has excellent cost performance, and thus can be preferably used for packaging of large-scale products.

Description of the symbols

1 packaging bag 1a film 2 peripheral portion 2a upper edge portion 2b of the film 2 sealed portion 3 pouring portion 4 pouring port member 5 hole 6, 6 ' easy-to-open portion 7 linear engaging portion 8 easy-to-peel portion 12 slit-shaped hole 13, 13 ' sewing needle hole 13 ' half-cut 14 film portion 16 unsealed portion 20 clamp 21, 31, 41 packaging bag 22, 32, 42 peripheral portion 22a, 32a, 42a upper edge portion 23, 33, 43 pouring portion 24, 34, 44 pouring portion 25, 35, 45 hole 50 hole 51 convex portion 52 unsealed portion 53 packaging bag 53a film 54 peripheral portion 54 ' pouring portion 54a upper sealed portion 55 unsealing receiving portion 56 forming opening portion 57 unsealed portion 58, 58 ' easy-to-open portion 59 locking mechanism (snap seal) 60a 1 st member 60b concave head first boss The 2-part 61 easy-peeling part 62, the hole 63 pouring part 64a pouring outlet part 64b, the sealing part 65, the 1 st base part 66, the 2 nd base part 65a, 66a sealing part 67, 68 front end part 69, 70 base part 71a, 71b open-ended position 72 lid 73 spout 74 lid body 75 support 76 assists in opening 77 flange 78 score 79 guide 80 cylinder 81 frangible portion 82 spout 83 stop 84 protrusion 85 base 85a reinforcing portion 86 packaging bag 87 peripheral portion (1 st sealing portion) 88 receiving portion 89 spout 90 unsealed portion 91 easy-to-open portion 92 locking mechanism (snap seal) 93 easy-to-peel portion 94 hole 95 spout member sealing portion 95a thin film 96 2 nd sealing portion 97 easy-to-open portion S spout member.

Claims

1. A packaging bag, which is formed by sealing a plurality of peripheral parts of a film, and the peripheral part has an injection part and an injection part; it is characterized in that,

In the injection part, an opening is formed from the unsealed part by cutting off part of the peripheral part of the sealed film, and the opening is unsealed to form an injection port;

At least two holes are formed in the peripheral part near the injection part and on both sides of the injection port part, and the holes are not only a hanging mechanism for hanging the packaging bag, but also a holding mechanism for holding with fingers.

2. The packaging bag according to claim 1, wherein in the injection part, the rigidity of the line part forming both sides of the injection port part and connecting the hole is set higher than that of the remaining part.

3 . The packaging bag according to claim 2 , wherein, in the injection part, the line part that forms both sides of the injection port part and connects the hole forms a linear engaging part that can be opened and locked. 4 .

4. The packaging bag according to any one of claims 1 to 3, characterized in that the hole is a circular or substantially circular hole with a diameter of 8-30 mm.

5. The packaging bag according to any one of claims 1 to 3, characterized in that its structure is that a part of the peripheral portion of the hole is reserved, and the reserved peripheral portion forms a stitch hole or a half-cut shape, When in use, the seam is pinholed or half-cut through and ruptured to form a hole in which the film is partially connected to the main body of the packaging bag.

6. The packaging bag according to any one of claims 1 to 3, wherein the hole is in the shape of a slit with a length of 30-60 mm.

7. The packaging bag according to any one of claims 1 to 6, which is characterized in that the film around the hole is not sealed.

8. The packaging bag according to any one of claims 1 to 3, characterized in that, when the hole is used as a holding mechanism that can be held by fingers, its upper edge is in a downwardly protruding shape.

9. The packaging bag according to claim 8, which is characterized in that the film on the upper edge of the hole is not sealed.

10. The packaging bag according to any one of claims 1 to 9, characterized in that at least one of the holes is used for hanging as a hanging mechanism, the injection part is configured to be approximately vertically downward direction.

11. A packaging bag, which forms a storage portion by sealing the peripheral portion of one or more films, and forms an opening for unsealing from the unsealed portion by cutting off a part of the peripheral portion of the sealed film, and is characterized in that ,

The opening includes a locking mechanism extending across the entire width of the opening and capable of being opened and locked, and an easy peel, wherein

The locking mechanism is composed of first and second parts engaged with each other, and the easy-peeling portion extends across the entire width of the opening; the easy-peeling portion isolates the locking mechanism from the receiving portion before being unsealed , when unsealing, the opening is unsealed by peeling off the easy-peelable portion; wherein,

The upper part of the first base member provided with the first member and the upper part of the second base member provided with the second member are respectively joined to the insides of the opposite films forming the opening to form the lock. closed institutions; and,

The lower end portion of one of the base members is longer than the other base member, and the lower end portion is bonded to the opposing film through an easy-peel seal to form an easy-peelable portion.

12. The packaging bag according to claim 11, wherein the first and second base members are not exposed to the outer edge of the sealing portion formed by sealing the peripheral portion of the film.

13. The packaging bag according to claim 11 or 12, characterized in that the locking mechanism is a chuck seal, wherein the locking is performed by the first part of the convex head and the second part of the concave head. In this configuration, the first part of the protruding head protrudes from the sealing base.

14. The packaging bag according to claim 13, characterized in that, in the locking mechanism, the cross-section of the front end of the first part of the protruding head perpendicular to the long side direction is set in an elliptical shape;

The recess of the cross-sectional shape of the front end of the second part of the concave head perpendicular to the longitudinal direction is set to be substantially the same as the cross-sectional shape of the front end of the first part; and,

When the first and second members are engaged, a gap is formed only between the front end of the first member near the base of the first member and the front end of the second member.

15. The packaging bag according to any one of claims 11 to 14, wherein an easy-opening portion for easily cutting off the peripheral portion of the film is provided at the portion where the opening is formed, and the easy-opening portion is as follows: Formed in a manner, that is, the position of the easy-opening part after cutting off the unsealing end is different on the two films.

16. The packaging bag according to any one of claims 11 to 15, which is characterized in that a spout portion is provided on the peripheral portion of the sealed film.

17. A spout member comprising a sprue part, a sealing part, and a cover part, wherein the spout part is composed of a base part and a cylindrical part protruding from the base part, and the sealing part is rupturable via a The fragile part seals the front end of the tube; the fragile part is broken by screwing the cover to separate the sealing part and the cover from the injection part, and the front end of the tube is unsealed to form a spout. is that

The cap part has a shape covering the entire cylindrical part, and the cap part and the pouring part are equipped with a locking mechanism capable of locking the cap part to the pouring part.

18. The spout member according to claim 17, which is characterized in that a plurality of annular protrusions for locking the hose are provided on the outer surface of the cylindrical portion of the spout.

19. The spout member according to claim 17 or 18, wherein the cover can reseal the spout.

20. The spout member according to any one of claims 17 to 19, wherein the fragile portion is formed of a thin-walled portion with a thickness of 0.15 mm to 0.2 mm.

21. A packaging bag, which forms a storage portion by a first sealing portion that seals the peripheral portion of one or more films, the peripheral portion is provided with a spout member sealing portion, wherein,

In the spout member sealing part, the spout member according to claim 17 is arranged between the two films constituting the packaging bag in a state where the cylindrical part of the spout part protrudes from the accommodating part, and the base part of the spout part fixedly connected between the films of the first sealing part;

And the spout member is formed by sealing the lid with a second sealing portion that seals between the films around the lid in a state of being sandwiched between the films;

The front end side of the base of the spout member and the film constituting the sealing portion of the spout member are cut off, and the spout is unsealed by simultaneously screwing the film and the cap of the spout member together, thereby removing the cap from the spout. partly separated.

22. The packaging bag according to claim 21, which is characterized in that an easy-open portion is provided for cutting off the film at the front end side of the base of the spout member and constituting the sealing portion of the spout member.

23. The packaging bag as claimed in claim 21 or 22, wherein the feature is that the easy-opening portion is in a curved shape such that after being cut off with the easy-opening portion, the middle portion of the unsealing end is closer than the starting unsealing position and the ending unsealing position. closer to the base of the spout.

24. The packaging bag according to any one of claims 21 to 23, wherein the easy-open portion is provided at a position closer to the front end than the hem portion of the cover portion.

25. The packaging bag according to any one of claims 21 to 24, wherein the peripheral portion of the sealed film is provided with an injection portion.

26. The packaging bag according to any one of claims 1 to 25, which is characterized in that it is used for trans-intestinal flow of food or trans-intestinal nutrition.