JP4629448B2 - Pouch with spout for liquid food - Google Patents

Description

  The present invention relates to a pouch with a spout for liquid food used for patients who need to administer a liquid such as liquid food or enteral nutrient (hereinafter referred to as liquid food), and more particularly to the pouch. When administering the filled liquid food, the supply tube can be connected to the spout attached to the pouch for simple and hygienic administration to the patient, etc. Alternatively, even when drinking water is administered using the pouch after the liquid food is administered, the diluent or drinking water can be easily injected from the liquid inlet provided on the top of the pouch, and hygienically. The present invention relates to a pouch with a spout that can be administered.

  Conventionally, liquid food is sealed and packaged, and when liquid food is administered to a patient or the like, a supply tube can be connected to a spout attached to a pouch, which can be administered simply and hygienically. When it is necessary to adjust the concentration of the liquid food before, or when the drinking water is administered using the pouch after administration of the liquid food, the diluted liquid or the like can be obtained from the liquid inlet provided at the top of the pouch. As a pouch with a spout for liquid food that can be infused with drinking water etc. and hygienically administered to patients, for example, (1) the pouch body is formed in a gusset pouch format with gusset portions on the left and right sides, A spout such as a plastic molded cap is attached to the lower part of the pouch, and the upper part of the pouch is provided with an opening means for forming a liquid inlet at one corner, and the lower part thereof is opened. A horizontal fold line for closing the body injection port is provided, and a wide heat seal portion is provided at the center of the upper part of the pouch so as to spread substantially symmetrically above and below the fold line. When the pouch is folded along the planned line, a hole is formed by a score line that serves as both a pouch suspending and resealing means in the region where the wide heat seal portion overlaps, and the overlapping hole is formed on the stand. There is a pouch with a spout for liquid food in which the opened liquid injection port is resealed by a method of hanging on a hook or the like (see, for example, Patent Document 1).

(2) A pouch body is inserted between the upper and lower portions of the front and back wall films, with the shape film or bottom film folded inward, and the peripheral edges are heat sealed. A gusset part is formed on the lower gusset part, and a spout with a cap made of a plastic molding is attached to one of the pleated parts before and after the lower gusset part. Of the front and rear pleats, one pleat is extended upwards, and a pouch suspension is provided on the extension, and the other pleat is provided with a liquid inlet. In the lower part, an inlet upper seal part that seals the upper edge, a tear line, and a zipper-type fastener are provided in this order so that the liquid inlet can be opened and then re-sealed with a zipper-type fastener. And there is a spout pouch flow edible (e.g., see Patent Document 2).
JP 2001-199457 A (2nd to 5th pages, FIGS. 1 to 4) JP-A-2001-213451 (2nd to 4th pages, FIGS. 1 to 4)

According to the pouch with a spout for liquid food described in the above (1), when the liquid food filled in the pouch is administered to a patient or the like, the spout is opened and a supply tube is connected to the mouth of the pouch. For example, by hanging a pouch by hanging a suspension hole provided in the upper part on a hook of a stand, a liquid food can be smoothly and hygienically administered to a patient or the like.
In addition, when it is necessary to adjust the concentration first, such as dilution of liquid food, or when drinking water is administered to a patient etc. using the pouch after administration of the liquid food, it is provided at the corner portion at the top of the pouch. The liquid inlet is opened by the unsealing means and the side film of the gusset portion is pulled out to open the liquid inlet, so that a diluent, drinking water, etc. can be injected from this portion. After injecting dilution liquid, drinking water, etc., the pouch was removed from the hook of the stand, the side film pulled out to the outside was folded back inward, and the upper part of the pouch was folded back to one side along the planned folding line. As the liquid inlet is closed, the holes by the cut lines that serve as the top and bottom suspension and reseal means overlap, so the liquid pouch is suspended again by hanging the overlapped holes on the stand hooks. Or drinking water etc. can be administered to a patient etc. hygienically.

  However, even in such a pouch with a spout for liquid food, when the liquid inlet is opened, the opening is relatively narrow, and the film of the pouch is a flexible material. In addition, when resealing the opened liquid inlet, once remove the suspended pouch from the hook of the stand and fold the top of the pouch to the other side along the planned folding line. It is necessary to hang the overlapping holes for the purpose of suspending and resealing means again by hanging them on the stand hooks, especially when handling a large number of pouches with pouring outlets for liquid food in hospitals. There was a problem that the operation of was troublesome.

In the hanging type pouch described in the above (2), a gusset portion is provided at the top and bottom of the pouch, and a spout is attached to one pleat portion of the lower gusset portion, and one pleat shape is attached to the upper gusset portion. In order to provide a pouch suspending means in the part and a liquid inlet in the other pleated part, an opening means is provided under the upper seal part for heat-sealing the upper edge, and a zipper is provided below The structure is provided with a type fastener.
Therefore, when the liquid food is sealed and packaged in this hanging pouch and the liquid food is administered to a patient or the like, the spout is opened in the same manner as the pouch with a spout for liquid food described in (1) above. Then, the supply tube is connected to the mouth portion, and the suspension means (hook hole) provided at the upper part of the pouch is hung on the hook of the stand, for example, and the pouch is suspended, so that the liquid food can be smoothly and sanitized. It can be administered to patients and the like.
In addition, when concentration adjustment is necessary, such as dilution of liquid food, or when drinking water is administered to a patient using the pouch after administration of liquid food, one of the gussets above the pouch Since the liquid inlet provided in the pleated part can be opened by cutting off the upper seal part with the opening means provided thereunder and then opening the zipper-type fastener by disengaging it. A diluent, drinking water or the like can be injected relatively easily from the opening. After injecting a diluent or drinking water, the opened liquid injection port can be resealed by fitting a zipper-type fastener. Since a series of operations during this time can be performed with the pouch suspended from the stand hook, the operability is excellent.

  However, even in such a hanging type pouch, a gusset portion is provided on both the upper and lower sides of the pouch, a spout is attached to one pleated portion of the lower gusset portion, and one pleated portion is attached to the upper gusset portion. In order to provide a liquid inlet for the other pleated part, the upper edge is heat-sealed with the upper sealing part, and an opening means is provided below it, and further resealed below it. Since a zipper-type fastener is provided as a means, it is excellent in functionality, but the manufacturing process becomes complicated and inferior in productivity.In particular, a zipper-type fastener as a means for resealing a liquid inlet has a factor in increasing costs. As a result, there was a problem that productivity and economy were inferior as a whole.

  The present invention has been made in order to solve the above-mentioned problems, and the subject thereof is a pouch with a spout mainly used for administering liquid food to hospitalized patients in medical institutions. When the liquid food is administered, the supply tube can be directly connected to the spout and can be administered to the patient in a sanitary and simple manner. If adjustment such as dilution of the liquid food is necessary, or After administration, even when drinking water is administered using the pouch, a diluent or drinking water can be easily injected from the liquid inlet formed in the pouch. It is easy to re-seal, has no particular cost increase, and can be administered in a sanitary and simple manner such as drinking water. It is easy to use in the medical field and has excellent hygiene, productivity and economy. Pouch with spout for liquid food It is to provide.

The above problems can be solved by the following present invention.
That is, the invention described in claim 1
Liquid foods such as a spout pouch made of laminated film used for administration to a patient or the like, to the upper portion of the pouch, and insert folded top film inside between the upper front and rear wall films The outer edge part is heat-sealed to form a pleated part , and the body part is formed by heat-sealing the left and right side edge parts of the front and rear wall film with side seal parts, and the bottom part. but are formed by heat sealing at the bottom seal portion end edge of the lower portion of the front and rear wall films, the edge portion of the bottom of the pouch is attached spout made of molded bodies of plastic, it folds of the pouch upper edge portion of the Jo portion is heat-sealed in the enlarged seal portion from the upper end to increase the sealing area downward, also, left and right side end edge of the upper portion comprising at least pleated portion of the pouch The sea Heat sealed in the wide seal portion and wide, the enlarged for large sealing portion is provided with holes for hanging the pouch of the fold portion in the front and rear constituting the pleated portion, on one of the pleated portion Is provided with lateral opening means for cutting off the enlarged seal portion to form a liquid inlet near the lower side of the enlarged seal portion, and the upper surface film wrapping of the lower end of the opening means and the pleated portion is provided. In addition, a fold line is provided between the front and rear folds in the region of the wide seal portion at both ends of the fold line from the outer side to the inner side. After the liquid injection port is opened by the opening means, the pleated portion is folded inward by the fold line and positioned at the upper ends on both sides of the folded pleated portion. And the ends on both sides of the other pleat Of the wide width and the sealing portion engaging portion provided in the region of engagement with each other, consisting of a spout pouch, characterized in that to allow resealable tamper liquid inlet.

  In the present invention, the shape of the spout formed of a plastic molded body is not particularly limited. For example, a two-piece type in which a spout main body and a cap are separately molded may be used. It may be a one-piece type provided with a closing part through a thin part that can be cut off.

The hole for hanging the pouch usually hangs the pouch through a hole or the like provided above a stand installed beside the bed when administering a liquid food filled in the pouch to a patient or the like. Therefore, any shape can be used as long as the pouch can be suspended through the hook. From the standpoint of heel and suspension strength, a shape having a rounded upper portion such as a circular shape or a horseshoe shape is preferable.
Such a hole may be a punched hole in which the entire circumference is punched out, or may be a hole formed by a cut line in which a connecting portion is provided in part.

  Further, the opening means for opening the liquid injection port includes: (a) means for providing an opening instruction line by printing or the like to clarify the opening position, and cutting the portion; (b) heat around the pouch Means provided with a notch in the seal part so that it can be opened by tearing from the notch. (C) An easily tearable film, for example, a uniaxially stretched film is opened along with its stretching direction for easy opening in a certain direction. A means to make it easy to tear and open by using a laminated film laminated to match the tear direction at the time, (d) Easily tear along the half-cut line formed by laser light irradiation (E) A narrow and small scar group is formed at the end of the pouch by a mechanical method and can be easily pulled from the scratch group as a starting point. Kicking manner means, it is possible to apply the opening means of the so selected or combined appropriately.

The opening instruction line may be displayed by any of characters, symbols, etc. in addition to a dotted line, a broken line, a solid line, etc., and can be easily provided by printing or the like.
The notch is usually a single-shaped or V-shaped notch, but the shape is not limited, and any shape may be used as long as it has a pointed portion in the tearing direction. The half-cut line is not limited to a continuous linear half-cut line, and may be an intermittent half-cut line such as a perforation. Such a half-cut line may be one, but assuming a case where the tearing direction is deviated, a plurality of half-cut lines such as one on each side or two on each side of the center half-cut line, Alternatively, it can be provided in a shape that converges on the central half-cut line.

  The folding line may be only a folding instruction line by printing, but an easy folding line such as a push rule may be provided in addition to the folding instruction line.

  According to a second aspect of the present invention, there is provided the pouch with a spout according to the first aspect, wherein the hole for suspension is a hole formed by a cut line in which a connecting portion is provided in part.

  The invention described in claim 3 is characterized in that the bottom seal portion is heat-sealed with a seal pattern in which both sides of the pouch are inclined upward toward the both sides of the pouch with the spout attachment portion at the bottom. It consists of a pouch with a spout according to claim 1 or 2.

According to the invention described in claim 1, since the pouch with a spout for liquid food is configured as described above, the following effects can be obtained.
(1) Since the main body of the pouch is formed by heat-sealing the laminated film, by selecting the laminated film configuration, in addition to sealing properties, gas barrier properties, light shielding properties, heat resistance that can withstand pressure heat sterilization, etc. Performance can be imparted and the storage stability of the contents can be improved.
(2) When administering a liquid food filled in a pouch with a spout to a patient or the like, the spout attached to the lower part of the pouch is opened, a supply tube is connected to the mouth, By hanging the pouch by hanging the suspension hole provided in the expansion seal part on the stand hook etc., the liquid food will naturally flow out from the spout to the supply tube, so the liquid food can be easily and hygienically patient Etc. can be administered.
(3) In addition, when adjustment such as dilution of liquid food is necessary for the first time, or when drinking water is administered to a patient etc. using the pouch after administration of liquid food, a pleated shape at the top of the pouch A wide liquid inlet can be opened by cutting out the enlarged seal part on the upper part with the opening means provided on one of the pleats constituting the part, so it can be easily opened from the opened liquid inlet. Dilution liquid or drinking water can be injected.
Since the opening of the liquid inlet and the injection operation of the diluted liquid or drinking water can be performed with the pouch suspended, it can be performed very easily.
(4) After injecting the diluted solution or drinking water, close the opened liquid injection port, fold the pleated part inside with the fold line provided under it, and put it on the other pleated part By overlapping, the upper and lower sides of the hook-like locking part by the cut lines on both the left and right sides of the folded pleated part are reversed and overlapped with the locking parts provided on the left and right sides of the other pleated part The upper and lower ends of the folded side folds can be locked to the other pleated part by crossing the overlapping front and rear locking parts so that the front and rear positions are changed. The opened liquid inlet can be closed easily and reliably (see FIG. 2).
Therefore, it is possible to reliably prevent falling bacteria, dust, and the like from being mixed during administration of liquid food, drinking water, etc., and liquid food, drinking water, etc. can be administered hygienically and easily to patients.
(5) The liquid injection port closing means is formed by a hook-shaped locking portion formed by a score line, and does not use a separate member such as a zipper-type fastener, so there is almost no increase in cost and productivity. Also excellent.

  According to the invention described in claim 2, in the configuration of the pouch with a spout according to the invention described in claim 1, the suspension hole is provided by a hole formed by a cut line in which a connecting portion is provided in part. In addition to the operation and effect of the invention described in claim 1, in the case of a punched hole with the entire circumference punched, a scrap is generated in the punching process. In addition to the cost increase, there is a possibility that the punching waste may be mixed into the pouch by mistake. However, since the punching waste does not occur in the hole punching process, the removal device is unnecessary and the punching device can be simplified and manufactured. Cost can be reduced. In addition, since there is no fear of the removal of waste, the safety and hygiene can be improved, the quality control can be facilitated, and the productivity can be improved.

  According to the third aspect of the present invention, in the configuration of the pouch with the spout according to the first or second aspect of the invention, the bottom seal portion has the spout attachment portion at the bottom and both sides of the pouch are pouches. Since it is configured to be heat-sealed with a seal pattern that increases with an inclination toward both sides, in addition to the operational effects of the invention described in claim 1 or 2, contents such as liquid food and drinking water filled in the pouch When a product is administered to a patient etc., the contents such as filled liquid food and drinking water are naturally guided to the spout by simply suspending the pouch on the hook of the stand etc. through the suspension hole. Can be administered without waste.

Since the pouch with a spout of the present invention is usually subjected to heat and pressure sterilization after sealing the liquid food, the spout attached to the laminated film of the pouch and the lower edge of the pouch has a heat resistance that can withstand this. Sex is necessary. Therefore, the sealant layer of the laminated film of pouches includes unstretched polypropylene (CPP), high density polyethylene (HDPE), medium density polyethylene (MDPE), and linear low density depending on the conditions of pressure heat sterilization treatment. Polyethylene (LLDPE) or the like can be used.
In addition, the spout is usually produced by injection molding of plastic, but the attachment to the pouch is preferably performed by a heat bonding method from the viewpoint of safety and productivity. It is necessary to be a resin that can be thermally bonded to the sealant layer of the laminated film of the pouch. For example, when polypropylene is used for the sealant layer, polypropylene is also used for the spout and high-density polyethylene is used for the sealant layer. In this case, it is preferable to use a resin of the same or the same system in combination for the sealant layer and the resin of the spout, such as using high density polyethylene for the spout.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1: is a front view which shows the structure of one Example of the pouch with a spout for liquid foods of this invention.
FIG. 2 shows an enlarged seal part of the pleated part on the front side constituting the upper pleated part of the pouch with spout shown in FIG. It is a perspective view of the principal part which shows the shape when the liquid inlet is resealed.
3 to 7 are second to sixth locking portions different from those in FIG. 1 of the locking portions provided on the left and right wide seal portions of the upper pleated portion of the pouch with a spout for liquid food according to the present invention. It is a front view of the principal part which shows the shape of a part.
FIG. 8 is an explanatory view of an example of the spout attached to the lower edge of the pouch with a spout for liquid food according to the present invention, where (a) is a front view of the spout and (b) is supplied to the spout. It is sectional drawing explaining the method of connecting a tube, (a) is before connection, (b) is sectional drawing after a connection.

The pouch 100 with a spout shown in FIG. 1 has its upper part folded back between the upper part of the front and rear wall films 1 and 1 ′ and inserted into the upper film folded part 2, and its outer edge. It is formed in a form having a pleated portion 3 formed by heat-sealing the portion, and the upper edge portion of the pleated portion 3 is heat-sealed by an enlarged seal portion 4 having a sealing area increased downward from the upper end thereof. In addition, the edge portions on the left and right sides of the upper portion including at least the pleated portion 3 of the pouch 100 are heat-sealed by wide seal portions 5a and 5b having a wide seal width, and the pouch is suspended from the enlarged seal portion 4. holes 9 are provided for use, before and after the pleat-like portions 8a of the pleated portion 3, among 8b, the pleated portion 8a of the front side, cut the enlarged seal portion 4 on the lower side near the enlarged seal portion 4 To form a liquid inlet As because the opening means, the transverse cutting line 13 and the notch 14a at its opposite ends, with 14b are provided, bending line 15 between the upper surface film folded portion 2 of the lower end of the tear line 13 and the pleated section 3 Further, in the region of the wide seal portions 5a and 5b at both ends of the fold line 15, the cut lines 11a and 11b penetrating the front and rear pleated portions 8a and 8b from the outside toward the inside. And the body of the pouch 100 heat seals the left and right edge portions of the front and rear wall films 1, 1 'with side seals 6a, 6b. At the bottom of the pouch 100, a spout 50 (see also FIG. 8) made of a plastic molded body is thermally bonded to the edge of the lower center of the front and rear wall films 1, 1 'at its adhesive base 23. Take Vignetting, both sides thereof are formed by heat sealing at the bottom seal part 7 of the seal pattern which becomes higher with an inclination toward the opposite sides of the pouch 100.

Although the hole 9 for suspending the pouch 100 is shown in the drawing as a punched hole with the entire circumference punched out and penetrating the front and rear pleats 8a and 8b, a connection portion is provided in part. It can also be provided by a hole with a score line, but rather it is easy to process and has excellent productivity as explained earlier. Further, the suspension hole 9 itself is not necessarily provided in both the front and rear pleats, and in the pouch with a spout having the configuration shown in FIG. 1, it is provided in at least the pleat 8b on the back side. However, the front and rear pleats 8 are easy to punch.
It is set as the structure provided in both the pleated parts as a hole which penetrates a and 8b.

Further, the spout made of a plastic molded body attached to the lower edge of the pouch with a spout of the present invention is not particularly limited. For example, as shown in (a) and (b) of FIG. The configuration can be taken.
That is, FIG. 8 is an explanatory view of an example of the spout attached to the lower edge of the pouch with a spout for liquid food of the present invention, (A) is a front view of the spout, and (B) is a spout. It is sectional drawing explaining the method of connecting a supply tube to (a), before connection, (b) is sectional drawing after a connection.
The spout 50 shown in (a) of FIG. 8 is composed of a two-piece of an upper spout main body 51 and a lower cap 53, and the spout main body 51 is thermally bonded to the pouch on the upper portion of the central cylindrical portion 21. The base 24 is provided with a main and sub flanges 24 (used for conveyance, etc.) at three positions with appropriate intervals, and a screw for attaching a cap 53 to the lower part. A portion 25 is provided, and a spout sealing material 52 is thermally bonded to the opening at the lower end of the cylindrical portion 21 and sealed.
Although the cross section of the adhesive base 23 is not shown in the figure, it is possible to facilitate thermal bonding to the pouch by forming the outer periphery in a spindle shape.

For the spout sealing material 52, when the spout main body 51 is produced by, for example, polypropylene injection molding, a laminated sheet in which an aluminum foil or the like is used as a base material and an unstretched polypropylene (CPP) layer is laminated as a sealant layer on the base sheet. Can be used.
The heat bonding of the spout sealing material 52 to the opening of the spout main body 51 can be performed after the filling of the contents, for example, when the spout main body 51 is used as a filling port for the contents.
In addition, the cap 53 is not shown in a sectional view, but a screw portion having a shape corresponding to the screw portion 25 provided on the distal end side of the spout main body 51 is provided on the inner peripheral surface of the side wall continuous to the top plate. Any cap that can be attached by screw tightening can be used.

Such a spout 50 can be attached by being thermally bonded by a method in which the adhesive base 23 is inserted between the wall films before and after the attachment position of the pouch and thermocompression bonded.
When a liquid food filled in a pouch with a spout attached with such a spout 50 is to be administered to a patient or the like, the cap 53 attached to the spout main body 51 is removed, and (b) in FIG. As shown in (a) and (b), the connector C attached to the other end of the supply tube T having one end inserted into the body of a patient or the like is inserted into the distal end portion of the spout main body 51 so that the piercing is performed. The spout 26 seals the spout sealing material 52 and is fixed to the spout main body 51 by the ring-shaped protrusion 22, and the liquid food flows into the supply tube T from the notch 27 provided in the piercing protrusion 26. Can be administered to patients.

  The pouch 100 with the spout 100 to which the supply tube T is connected in this manner is hung on a hook such as a stand using the suspension hole 9 so that the spout 50 is positioned at the bottom of the pouch. As a result, the liquid food can be smoothly poured and administered to the patient or the like.

By adopting the configuration shown in FIG. 1, the cap 53 attached to the spout body 51 of the spout 50 is removed when the liquid food filled in the pouch 100 with spout 100 is administered to a patient or the like. As shown in FIG. 8, by inserting the connector C attached to the other end of the supply tube T, one end of which is inserted into the body (intestine, etc.) of the patient or the like into the distal end portion of the spout main body 51. The spout projection material 26 pierces the spout sealing material 52 and is fixed to the spout main body 51 by the ring-shaped protrusion 22, and liquid food is fed into the supply tube T from the cutout portion 27 provided in the piercing protrusion 26. It will be ready to be administered to patients.
In this way, the pouch 100 with the spout connected to the supply tube T is used as a hook of a stand or the like installed beside a patient or the like using the suspension hole 9 provided in the enlarged seal portion 4 at the upper part of the pouch. By hanging and hanging, the liquid food flows out into the supply tube T, and administration of the liquid food to the patient or the like can be started. At this time, the spout 50 is positioned at the lowermost part of the pouch, and the bottom seal portions 7 on both sides of the spout 50 are sealed so as to increase from the both sides of the spout 50 toward both sides of the pouch. Since the pattern is heat-sealed, the liquid food is reliably guided to the spout 50, and the liquid food can be smoothly dispensed and administered to the patient or the like.

In addition, when adjustment such as dilution of liquid food is necessary at first, or when drinking water or the like is administered to a patient or the like using this pouch 100 with a spout after administration of liquid food, the upper part of the pouch pleated portion 3 on the front side of the pleated portion 8a in a notch 14a provided on the cutting line 13 and its two ends provided as opening means, by utilizing 14b, for example, along the right side of the notch 14b to the tear line 13 By cutting off the enlarged seal portion 4 thereabove, the pleated portion 8a on the front side can be opened largely as a liquid injection port, and a diluent, drinking water, etc. can be easily injected from the opening. .

After injecting the diluting solution or drinking water, the opening of the pleated portion 8a on the front side is closed, and the folding provided between the cut line 13 and the upper surface film folding portion 2 at the lower end of the pleated portion 3 By folding the closed front side pleated portion 8a on the inner side, that is, on the rear side pleated portion 8b side, at the line 15, it is within the region of the wide seal portions 5a, 5b at both ends of the fold line 15. The hook-like locking portions 10a and 10b formed by the cut lines 11a and 11b are reversed in the vertical direction so that the hook-like engagement is formed by the cut lines 11a and 11b provided in the pleated portion 8b on the back side. The stop portions 10a and 10b overlap with each other in different shapes in the vertical direction.
At this time, the locking pieces 12a and 12b and the locking pieces 12c and 12d formed by the cut lines 11a and 11b of the locking portions 10a and 10b overlapped at both ends of the folding line 15 are respectively pleated portions on the front side. The upper half of the locking pieces 12a and 12c formed at both ends of the folding line 15 of 8a protrudes upward from the folded folding line 15 and is formed in the pleated portion 8b on the back side. Since it overlaps with the locking pieces 12b and 12d, for example, the operation of twisting the upper and lower sides of the overlapping locking pieces 12a and 12b and the locking pieces 12c and 12d, or the front side locking pieces 12a and 12c, respectively, 2 by changing the positional relationship between the front and rear locking pieces 12a and 12b and the front and rear locking pieces 12c and 12d by an operation of pushing into the back of the side locking pieces 12b and 12d. As shown, the left and right upper ends of the folded front side pleated portion 8a are engaged with the pleated portion 8b on the rear side, and the opening of the opened front side pleated portion 8a, that is, the liquid inlet Can be kept closed.

  That is, in FIG. 2, the enlarged seal portion 4 of the pleated portion 8a on the front side of the gusset portion 3 of the pouch 100 with a spout shown in FIG. 1 is cut off at the cut line 13 below to open the liquid inlet. Then, it is a perspective view of the principal part showing the shape when the liquid injection port is resealed, and the folded fold-like portion 8a on the front side is folded to the fold-like portion 8b side on the back side by a folding line 15. The upper and lower sides of the line 15 are reversed upside down, the locking piece 12a overlapping the locking piece 12b formed on the back side pleated part 8b, and the locking piece 12d formed on the back side pleated part 8b, The overlapping locking pieces 12c are changed in the front-rear positional relationship, and in the drawing, the back side locking piece 12b protrudes to the front side of the locking piece 12a at the left end, and the back side at the right end. Recombination so that the locking piece 12d comes to the front of the locking piece 12c Thus, the upper left and right ends of the folded front pleated portion 8a are engaged with the rear pleated portion 8b, and the opening of the opened front pleated portion 8a, that is, the liquid inlet Is held in a closed state.

The series of operations of opening the liquid inlet as described above, injecting a diluent, drinking water, etc. from the opened liquid inlet, and resealing the liquid inlet after the injection, is performed with a pouch 100 with a spout. Can be performed in a state of being suspended on a hook of a stand or the like.
In addition, since the liquid injection port is securely resealed, liquid food, drinking water, and the like can be administered to a patient and the like in a sanitary and smooth manner without fear of contamination with falling bacteria or dust.
Therefore, the pouch 100 with a spout according to the present invention is more convenient in the medical field than the conventional pouch with a spout and is excellent in terms of hygiene and economy.

Moreover, FIGS. 3-7 has the shape of the latching | locking part different from FIG. 1 of the latching | locking part provided in the wide seal part of the both sides of the upper pleated part of the pouch with a spout for liquid food of this invention, respectively. FIG. 2 is a front view of the main portion shown in FIG. 1, and the locking portions 10 a and 10 b shown in FIG. 1 are located in the regions of the wide seal portions 5 a and 5 b at both ends of the folding line 15, The front and rear pleated portions 8a and 8b are respectively formed by forming a horizontal cut line extending inward from the inside, a cut line extending vertically upward, and a cut line 11a and 11b having a return portion bent outward at the upper end thereof. 3, the locking portions 10a and 10b shown in FIG. 3 are short cut lines in the lateral direction from the outer end portions of the pouch toward the inside as shown in the figure. And then the incision going diagonally inward and upward A score line 11a shapes the return portion bent outward is provided at its upper end, the 11b, is constructed by installed to pass through the front and rear of the wrinkled portions 8a, respectively, the 8b.

  As shown in FIG. 4, the locking portions 10a and 10b shown in FIG. 4 have a horizontal cut line extending inwardly from both outer ends of the pouch, followed by a cut line extending obliquely outwardly upward with R and its upper end. The cut lines 11a and 11b are provided so as to penetrate the front and rear pleats 8a and 8b, respectively.

  As shown in the figure, the locking portions 10a and 10b shown in FIG. 5 are inclined inwardly in a V shape from both outer end portions of the pouch, then folded back obliquely upward with R, and then vertically A cut line 11a, 11b having a cut line extending upward and a return part bent outward at the upper end thereof is provided so as to penetrate the front and rear pleats 8a, 8b, respectively.

  As shown in FIG. 6, the locking portions 10a and 10b shown in FIG. 6 are temporarily lowered inwardly from both outer ends of the pouch in a U shape, then folded upward in a curved shape, and then vertically upward. The cut lines 11a and 11b are provided so as to penetrate the front and rear pleats 8a and 8b, respectively.

  As shown in FIG. 7, the locking portions 10a and 10b shown in FIG. 7 are formed from a short cut line extending inward from both outer ends of the pouch, followed by a cut line extending obliquely inward and downward, and its lower end. A cut line 11a, 11b having a shape in which a cut line extending vertically upward with R and a return portion bent outward at the upper end thereof is provided so as to penetrate the front and rear pleats 8a, 8b, respectively. is there.

  As described above, each of the locking portions 10a and 10b shown in FIGS. 3 to 7 includes, for example, a cut line portion obliquely upward from the lower side in the locking portions 10a and 10b having the shape shown in FIG. Since it is provided, as shown in FIG. 2, when the front and rear locking pieces 12a and 12b and the front and rear positional relationships of the locking pieces 12c and 12d are recombined and locked, they can be easily recombined and locked. In the locking portions 10a and 10b having the shape shown in FIG. 4, a lateral cut line extending inward from both outer ends of the pouch, and a cut line extending obliquely outwardly with R following it. As shown in FIG. 2, when the front and rear locking pieces 12a and 12b, and the front and rear positional relationships of the locking pieces 12c and 12d are recombined and locked, the locking portion is difficult to come off. With regard to its locking properties, such as Although there are some differences, as shown in FIG. 2, the entire front and rear locking pieces 12a and 12b, as well as the locking pieces 10a and 10b having the shape shown in FIG. Since the positional relationship before and after 12c and 12d can be recombined and locked in a stable state, the opened liquid inlet can be reliably resealed.

The pouch resealing means as described above is not limited to a pouch with a pouring outlet for liquid food as shown in FIG. 1, but is a simple and inexpensive resealing means for general pouches not provided with a pouring outlet. In this case, for example, in the configuration of the pouch 100 with a spout shown in FIG. 1, the spout 50 is removed, and the bottom seal portion 7 is heat-sealed with a flat seal pattern having a predetermined width. When the upper pleated portion 3 does not require the hanging hole 9, the pouch is prepared by changing the enlarged seal portion 4 to the upper seal portion having a normal predetermined width and has resealability. Pouches can be made.

Next, the laminated film used for the pouch with a spout of the present invention will be described.
Since the pouch with a spout for liquid food of the present invention is usually subjected to pressure heat sterilization after sealing the liquid food, the laminated film of the pouch together with the spout needs heat resistance to withstand this. . Moreover, since the scale etc. which display the residual amount of a liquid food etc. are provided in a pouch during administration to a patient etc. of a liquid food, it is also necessary for the laminated film of a pouch to have transparency. Furthermore, in order to improve the storage stability of the sealed liquid food, it is preferable that the laminated film of the pouch is excellent in gas barrier properties.

Although it does not specifically limit as a laminated film provided with such performance, The laminated film of the following structures is mentioned as a typical structural example.
(1) PET film / adhesive / deposited layer of inorganic oxide / ON film / adhesive / CPP film (sealant layer)
(2) PET film / inorganic oxide deposition layer / adhesive / ON film / adhesive / CPP film (sealant layer)
(3) PET film / adhesive / deposited layer of inorganic oxide / ON film / adhesive / uniaxially stretched or biaxially stretched film / adhesive / CPP film (sealant layer)
(4) Deposition layer of PET film / inorganic oxide / adhesive / ON film / adhesive / uniaxially stretched or biaxially stretched film / adhesive / CPP film (sealant layer)
(5) PET film / adhesive / EVOH film / adhesive / ON film / adhesive / CPP film (sealant layer)
(6) PET film / adhesive / EVOH film / adhesive / ON film / adhesive / uniaxially stretched or biaxially stretched film / adhesive / CPP film (sealant layer)
(7) PET film / organic gas barrier coat layer / adhesive / ON film / adhesive / CPP film (sealant layer)
(8) PET film / adhesive / organic gas barrier coat layer / ON film / adhesive / CPP film (sealant layer)
However, the present invention is not limited to these, and various combinations of laminated films can be used.

In the above configuration, the PET film is a biaxially stretched polyethylene terephthalate film, the ON film is a biaxially stretched nylon film, the CPP film is an unstretched polypropylene film, and the EVOH film is a saponified ethylene-vinyl acetate copolymer film.
In addition, the inorganic oxide vapor-deposited layer is specifically formed by depositing an inorganic oxide vapor-deposited layer such as silica, alumina, zinc oxide or magnesium oxide on a heat-resistant substrate film such as a PET film or an ON film. It can be vapor-deposited to a thickness of ˜1000 mm.
Specifically, the organic gas barrier coat layer preferably uses a coat layer (thickness of about 1 to 5 μm) such as a polyacrylic acid crosslinked resin in addition to a polyvinylidene chloride coat layer (thickness of about 2 to 8 μm). be able to. In particular, the polyacrylic acid crosslinked resin coating layer is excellent in both gas barrier properties and heat resistance, and is coated with a heat resistant substrate film such as a PET film to be subjected to pressure and heat sterilization treatment. It can be suitably used for the pouch with a spout of the invention.

  The PET film or ON film acts as a base film, imparts heat resistance to the pouch in addition to mechanical strength, and the PET film used for the outermost layer also imparts printability. Since the ON film has some hygroscopicity, it is preferably used for the intermediate layer in the pouch with a spout of the present invention. However, the ON film is particularly useful in that it can improve the strength of the liquid pouch because it has excellent puncture strength and bending strength. .

The intermediate oxide vapor deposition layer, EVOH film, and organic gas barrier coating layer are all laminated as a gas barrier layer having transparency.
When a uniaxially stretched film is laminated on the intermediate layer, a uniaxially stretched polypropylene film, a uniaxially stretched high-density polyethylene film, a uniaxially stretched polyethylene terephthalate film, or the like can be used, and the stretch direction opens the liquid inlet of the pouch. When the liquid injection port is opened as one of the opening means, it can be easily torn and opened along the cut line.
When a biaxially stretched film is laminated on the intermediate layer, a biaxially stretched polypropylene film, a biaxially stretched high-density polyethylene film, or the like can be used, thereby increasing the thickness of the laminated film and increasing the rigidity and mechanical strength. In addition, the water vapor barrier property can be improved.

The innermost CPP film acts as a sealant layer for heat sealing, and is excellent in heat resistance and low odor. Therefore, after sealing the contents as in the present invention, the pouch is pressurized and sterilized together with liquid food. It is particularly preferably used for these pouches.
Only the CPP film is exemplified as the innermost sealant layer, but a high-density polyethylene film (HDPE film) can be used in the same manner, and a linear low-density polyethylene film ( LLDPE film) can also be used.
In addition, since the adhesive between the films is usually performed by laminating these films by a dry lamination method, a known dry laminating adhesive such as a two-component curable polyurethane adhesive is used. be able to.
Hereinafter, the present invention will be described in more detail with reference to examples.

The pouch with a spout for liquid food according to the present invention was produced with the configuration shown in FIG. 1 and produced with the following dimensions using the following materials. However, the pouch bag with spout and the filling seal of the liquid food were performed off-line, and a device in which a bag machine for a standing pouch was arranged was used for bag making.
The wall surface film of the pouch is composed of (outside) PET film (thickness 16 μm), silica vapor deposition layer (thickness 400 mm), printing layer / adhesive / ON film (thickness 15 μm) / adhesive / CPP film (thickness 90 μm). A laminated film was used.
On the top film of the pouch, a laminated film having a configuration of (outside) PET film (thickness 12 μm), silica vapor deposition layer (thickness 400 mm) / adhesive / ON film (thickness 15 μm) / adhesive / CPP film (thickness 70 μm) Using.
As the spout 50, a two-piece type having the configuration shown in FIG. 8 and produced by injection molding of polypropylene was used.
As the spout sealing material 52, a laminated sheet in which a CPP film having a thickness of 30 μm was bonded to an aluminum foil having a thickness of 35 μm was used.

Using the wall surface film, the upper surface film, and the spout 50, the outer dimensions of the main body of the pouch 100 are 160 mm wide and 310 mm long, and the folding length of the upper film of the upper pleat 3 is 80 mm. In addition, the spout 50 is attached to the center of the bottom by heat bonding with the adhesive base 23, and the bottom seal portions 7 on both sides thereof are directed from both sides of the adhesive base 23 toward both sides of the pouch 100. Heat sealing was performed with a seal pattern that was 15 mm higher with an inclination.
The length of the enlarged seal part 4 at the upper part of the pleated part 3 is 30 mm from the upper end to the lower side, and the width of the wide seal parts 5a, 5b on both the left and right sides of the pleated part 3 is 18 mm. Heat sealed as width. Then, holes 9 for hanging is formed by punching a circular hole of diameter 13mm in substantially the center of the enlarged seal portion 4 so as to penetrate front and rear pleated portion 8a of the pleated portion 3, the 8b.
Furthermore, the 6mm away beneath the enlarged seal portion 4 on the front side of the pleated portion 8a of the pleated portion 3, the cut lines 13 by printing in the lateral direction is provided, the notch 14a in the end portion of both, 14b Provided. Further, a bending line 15 is provided in the lateral direction at a position 20 mm below the cut line 13, and the shapes (L) illustrated on the wide seal portions 5a and 5b at both ends thereof from the outside to the inside are provided. A pouch with a spout of Example 1 was manufactured by providing locking portions 10a and 10b with cut lines 11a and 11b having a (letter-shaped) shape so as to penetrate the front and rear pleated portions 8a and 8b.

In addition, the space | interval of the said fold line 15 and the upper surface film folding | returning part 2 under it is 24 mm, and is set larger than the space | interval 20 mm of the cut line 13 and the fold line 15. This is because the enlarged seal part 4 is cut off by the cut line 13 and the liquid inlet is opened, and then the upper part is folded inward by the fold line 15 for re-sealing, the folded part exceeds the upper film folding part 2 It is designed not to get in the way of folding.
Further, the sizes of the locking portions 10a and 10b were set such that the length of the horizontal score line was 10 mm and the length of the vertical score line was 11 mm.
Further, the spout 50 is used for the filling port of the liquid food, and the spout sealing material 52 is thermally bonded after the filling of the liquid food.

The pouch 100 with the spout produced as described above is filled with 400 ml of liquid food from the opening of the spout main body 51, deaerated, and the spout sealing material 52 is thermally bonded to the opening of the spout main body 51. After sealing, using a steam retort sterilization pot, pressure heat sterilization treatment was performed under conditions of 135 ° C. for 30 minutes to obtain a pouch 100 with a spout that sealed the liquid food.
Using the pouch 100 with a spout sealed with the above liquid food, a simulation test for administering the liquid food to a patient or the like was performed as follows.

  That is, the connector C of the supply tube T having the connector C attached to one end is inserted and connected to the tip of the spout main body 51 (see FIG. 8) of the pouch 100, and the pour is cut through the spout seal material 52. When the outlet body 51 is opened, the hole 9 for hanging the pouch 100 is put on the hook of the stand, and the pouch 100 is suspended, the liquid food gradually flows out from the spout body 51 into the supply tube T until the end. We were able to dispense smoothly.

After completion of the dispense of the liquid food, liquid inlet enlarged seal portion 4 of the front side of the upper part of the pleat-like portion 8a pleated portion 3, cut along the cut line 13 from one notch 14b thereunder Was opened, and about 200 ml of lukewarm water was injected from the opened liquid inlet.
Next, the opened liquid inlet is closed, and the closed liquid inlet is folded inward (folded portion side on the back side) at the lower fold line 15 so that the upper and lower sides of the fold line 15 are The locking pieces 12a and 12c, which are reversely reversed and project substantially half, are pushed into the back surfaces of the locking pieces 12b and 12d provided on the fold-like portion 8b on the back side that overlaps the locking pieces 12a and 12c, respectively. By changing the positional relationship between the front and rear of the piece 12b and the locking piece 12c and the locking piece 12d, the folded front fold is locked to the back fold so that the opened liquid inlet can be securely Could be kept closed.
Accordingly, it is possible to prevent falling bacteria, dust, and the like from entering from the opened liquid inlet, and, like liquid food, lukewarm water can be poured out and administered hygienically and smoothly to patients and the like. .
In addition, the opening of the liquid inlet, the injection of warm water from the opened liquid inlet, and the resealing operation of the liquid inlet are performed even when adjustment such as dilution of liquid food is necessary at the beginning. The same procedure can be followed simply by changing the solution to, for example, a diluent.
In addition to the first embodiment, only the shape of the locking portions 10a and 10b is changed to the locking portions 10a and 10b having the shapes shown in FIGS. Although the same test was done, all were able to reseal well like Example 1.

  The pouch with a spout for liquid food according to the present invention can be safely packaged by storing the liquid food in a sealed manner, and is easy to use in the medical field when administering the liquid food to patients, etc., and is hygienic and economical. In addition to being particularly suitable for use as a pouch with a pouring spout for liquid foods, it can also be used as a dispenser container for general liquid materials by taking advantage of its function. The contents to be filled and the use are not particularly limited.

It is a front view which shows the structure of one Example of the pouch with a pouring outlet for liquid foods of this invention. After opening the liquid inlet by cutting off the enlarged seal part of the front pleated part constituting the upper pleated part of the pouch with the spout shown in FIG. 1, the liquid inlet is opened. It is a perspective view of the principal part which shows the shape when re-sealing. The front view of the principal part which shows the shape of the 2nd latching | locking part different from FIG. 1 of the latching | locking part provided in the wide seal part of the right and left both sides of the upper pleated part of the pouch with a pouring outlet for liquid foods of this invention is there. It is a front view of the principal part which shows the shape of the 3rd latching | locking part of the latching | locking part provided in the wide seal part of the right and left both sides of the upper pleated part of the pouch with a pouring outlet for liquid foods of this invention. It is a front view of the principal part which shows the shape of the 4th latching | locking part of the latching | locking part provided in the wide seal part of the right and left both sides of the upper pleated part of the pouch with a pouring outlet for liquid foods of this invention. It is a front view of the principal part which shows the shape of the 5th latching | locking part of the latching | locking part provided in the wide seal part of the both right and left sides of the upper pleated part of the pouch with a pouring outlet for liquid foods of this invention. It is a front view of the principal part which shows the shape of the 6th latching | locking part of the latching | locking part provided in the wide seal part of the right and left both sides of the upper pleated part of the pouch with a pouring outlet for liquid foods of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of an example of the spout attached to the lower edge part of the pouch with a spout for liquid foods of this invention, (A) is a front view of a spout, (B) connects a supply tube to a spout. It is sectional drawing explaining a method, (a) is before a connection, (b) is sectional drawing after a connection.

1, 1 'wall film (laminated film)
2 top film folding section 3 pleated portion 4 enlarged seal portion 5a, a hole for 5b wide seal portion 6a, 6b side of the sealing portion 7 bottom seal portion 8a front side of the pleated portion 8b rear-side folds 9 hanging 10a, 10b Locking part 11a, 11b Cut line 12a, 12b, 12c, 12d Locking piece 13 Cut line 14a, 14b Notch 15 Bending line 21 Tube part 22 Ring-like protrusion 23 Adhesive base 24 Flange 25 Screw part 26 Piercing protrusion 27 Notch 50 Outlet 51 Outlet body 52 Outlet sealing material 53 Cap 100 Pouch with outlet

Claims (3)

Liquid foods such as a spout pouch made of laminated film used for administration to a patient or the like, to the upper portion of the pouch, and insert folded top film inside between the upper front and rear wall films The outer edge part is heat-sealed to form a pleated part , and the body part is formed by heat-sealing the left and right side edge parts of the front and rear wall film with side seal parts, and the bottom part. but are formed by heat sealing at the bottom seal portion end edge of the lower portion of the front and rear wall films, the edge portion of the bottom of the pouch is attached spout made of molded bodies of plastic, it folds of the pouch upper edge portion of the Jo portion is heat-sealed in the enlarged seal portion from the upper end to increase the sealing area downward, also, left and right side end edge of the upper portion comprising at least pleated portion of the pouch The sea Heat sealed in the wide seal portion and wide, the enlarged for large sealing portion is provided with holes for hanging the pouch of the fold portion in the front and rear constituting the pleated portion, on one of the pleated portion Is provided with lateral opening means for cutting off the enlarged seal portion to form a liquid inlet near the lower side of the enlarged seal portion, and the upper surface film wrapping of the lower end of the opening means and the pleated portion is provided. In addition, a fold line is provided between the front and rear folds in the region of the wide seal portion at both ends of the fold line from the outer side to the inner side. After the liquid injection port is opened by the opening means, the pleated portion is folded inward by the fold line and positioned at the upper ends on both sides of the folded pleated portion. And the ends on both sides of the other pleat Of the wide width and the sealing portion engaging portion provided in the area of mutual engagement, the spout-equipped pouch, characterized in that the unwrapped liquid inlet allows resealed. The pouch with a spout according to claim 1, wherein the hole for suspending is a hole formed by a cut line in which a connecting portion is provided in part. The bottom seal part is heat-sealed in a seal pattern in which both sides of the pouch are attached to the lowermost part, and both sides of the bottom seal part increase with an inclination toward the both sides of the pouch. Pouch with a spout.

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