JPS60153865A - Standing pouch with cock and its production - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a standing pouch with a stopper and a method for manufacturing the same, and more particularly to a standing pouch with a stopper having a stopper attached to the bottom for outflow of contents such as infusions, and a method for manufacturing the same. Regarding.

A pouch with a stopper that stores infusions such as Ringer's solution or glucose solution and is equipped with a stopper to allow the infusion to flow out will cause the pouch wall to dent and reduce the internal volume as the infusion flows out. ,
It has the advantage that there is no need to insert an air supply needle as in the case of bottles. Normally, air supply needles are filled with absorbent cotton to prevent dust from entering the atmosphere, but the fibers of this absorbent cotton may separate and enter the infusion, passing through the infusion needle and entering the human body. However, when infusions are delivered through a pouch with a stopper, there is a high risk of such problems occurring.

However, the conventional pouch with a stopper is a normal pouch (i.e., a bag) in which the end sides of opposing walls are joined by heat sealing, and the stopper is attached to the body wall of the pouch. or attached to the cylindrical portion of the stopper, with the end portions of the opposing walls surrounding the cylindrical portion,
It was of the type that was bonded by heat fusion or the like.

In the former case, when the infusion needle is inserted into the stopper during use, the problem is likely that the infusion needle pierces the pouch wall facing the stopper, resulting in leakage of the infusion. On the other hand, in the latter case, when performing thermal fusion, etc., a pinhole passing through the inside and outside is formed in the portion where the end sides of the opposing walls overlap, and there is a problem in that the quality of the infusion fluid is likely to deteriorate or leak.

It is an object of the present invention to solve the problems of the prior art described above.

To achieve the above object, the present invention forms a bottom by attaching a bottom piece having a hole to the inner surface of the lower end of the opposing body pieces so that the upper edge of the adhering part is convex downward. On the inner surface around the hole at the bottom of the standing mouthpiece body,
The present invention provides a standing pouch with a stopper, characterized in that a flange portion of the stopper is bonded, and a cylindrical main portion of the stopper extends downward through the hole.

Further, in the present invention, a bottom piece having nine holes whose inner surface is made of thermoplastic glass film is attached to the inner surface of the lower end of the opposing body pieces in such a manner that the upper edge of the attachment part is convex downward. A plug body of a standing pouch main body having a bottom formed with a cylindrical main part and a flange part in a state where the bottom part is expanded into an upward planar shape, and at least the flange part is made of thermoplastic plastic. To provide a method for producing a standing pouch with a stopper, which comprises inserting the cylindrical main part into the hole from the inside of the pouch, and then heat-sealing the flange part to the inner surface around the hole. It is something.

The present invention will be described below with reference to the drawings which are examples.

Fig. 1 shows an empty standing pouch 1 with a stopper (hereinafter referred to as a pouch with a stopper) before being filled with liquid and sealed, in which 2 stands for the standing pouch and 4' the main body (
(hereinafter referred to as the pouch body), 3 is the plug body. As shown in FIG. 2, the pouch main body 2 is made by stacking opposing rectangular body pieces 4, and having a circular hole 5 in the center on the inner surface of the lower end, and folding through the center of the hole 5. The bottom end 4a of the body piece 4
A bottom piece 6 having a folded part 6a parallel to the bottom part 6 is pasted by heat fusion so that the upper edge 7a of the pasting part 7 is convex downward in an arc shape to form a bottom part 8, and at the same time the bottom piece 6 is attached to the body. It is manufactured by heat-sealing both side edges of the pieces to form side joints 9. Note that ■0 is the opening for filling.

The body piece 4 and the bottom piece 6 are formed of a flexible laminate, for example, with an inner layer made of a polyzolopyrene film, an intermediate layer made of a glass iron film, and an outer layer made of a polyethylene terephthalate film.

The plug body 3 has a cylindrical main part 11 and an outwardly facing flannel part 1.
At least the flange portion 12 is made of thermoplastic, such as polypropylene 17, which can form a strong heat-sealed portion with the inner surface layer of the bottom portion 8. Further, the diameter of the hole 5 is approximately equal to the outer diameter of the main body portion 11 of the plug body.
The main portion 11 is sized to be able to be inserted into the hole 5.

The plug body 3 in this embodiment has the same structure as the plug body disclosed in Japanese Unexamined Patent Publication No. 58-86173. That is, as shown in FIG. 5, the main portion 11 is provided with an upper panel 13 that is relatively thin and into which an infusion needle can easily be inserted, and a lower panel 14 on which an annular score (not shown) is formed. An elastic comb plug 15 is provided between both panels 13' and 14. Also, on the outer surface of the lower tunnel 14 is a ring tab 1.
After the elastic rubber stopper 15 is exposed by pulling the ring tab 16 and tearing the annular score, insert an infusion needle (not shown) into the elastic rubber stopper 15 and the upper glossy panel 13. The structure is such that the infusion solution 17 flows out through the infusion needle. The main body part 11, except for the elastic rubber stopper 15, is made of thermoplastic plastic.

The pouch 1 with a stopper is inserted into the hole 5 of the bottom 8 of the pouch body 2 so that the main part 11 of the stopper extends outward, that is, downward, and the flange 12 is inserted into the hole 5 on the periphery of the hole 5. It is formed by joining by heat fusion. When the plug body 3 is installed, the folded portion 6a almost disappears, and a planar portion 6b is formed that extends from the flange portion 12 of the bottom portion 6 toward the side surface joint portion 9 and is slightly convex downward. Also, the bottom part 4 of the body piece 4
a also expands as shown in FIG. In this state, it is desirable to determine the height of the main part 11 of the stopper so that the lower end surface 3a of the stopper 3 is located at the level of the bottom end 4a of the body piece 4 or slightly above it. . This is to ensure the independence of the stopper attached/F box 1 before filling or after filling and sealing.

Figures 4, 5, and 6 show the contents of the pouch 1 with a stopper,
That is, in this case, after filling the infusion solution 17, the opening 10
It is shown in a state where it is heated and sealed and suspended from a hanging device (not shown). The bottom end 4a further expands due to the weight of the infusion solution 17, and almost the entire bottom portion 8 expands into a planar shape. Then, in the above-mentioned suspended state or horizontally placed state, the ring tab 16
Even if an infusion needle is inserted into the elastic rubber stopper 15 by pulling, there is no risk that the needle will break through the pouch wall. Further, since the planar bottom portion 8 and the flange portion 12 of the plug body 3 are heat-sealed, complete heat-sealing is performed along the entire circumference of the flange portion 12.
There is no possibility that a pinhole penetrating the inside and outside will be formed in the heat-sealed part.

Next, a method for manufacturing the pouch l with a stopper will be explained.

Figure 7 shows the turret 1 that attaches the stopper 3 to the pouch body 2.
8, eight supports 19 for placing plugs are installed at equal intervals along the periphery of the turret 18. Each support 19 of the turret 18 is located at a station A, B, C, D.

Arrow X to stop when reaching E, F, G, H
Performs intermittent rotational movement in the direction.

At station A, as shown in FIG. 8, the plug body 3 with the flange portion 12 facing downward is placed on the upper surface 19a of the support body 19. At station B, the support 19
A detector (for example, a phototube type), not shown, detects whether or not there is a plug 3 on top.

Above station C, as shown in FIG. 9, a pouch body supply device 2o is provided.

The device 20 is located in front of a piler 21 that holds a large number of flat and vertically inverted body parts 2 in a stacked state, and the device 20 is located in front of the piler 21. Two reciprocatable vacuum suction cups (top and bottom) 2
2a, and two opposing pairs of upper and lower vacuum suction cups 23a, which are located at a level below the a-in-21 and can reciprocate in the horizontal direction so as to approach and separate from each other. A second vacuum suction device 23 is provided.

The piler 21 has a slight downward slope toward the front, and the /F house body 2 inside the piler 21 is similar to the weight car 2.
4, it is constantly pressed forward.

The vacuum suction cup 22a moves forward at the position indicated by the dotted line and reaches the position 7 in the front row.
F The main body 2 of the house is vacuum-adsorbed and moved backward, and the main body 2 of the house stops at the position shown by the solid line, which is coaxial with the stopper 3 placed thereon.

Next, the opposing vacuum suction cup 23 of the second vacuum suction device 23
a approaches the position where there is a slight gap, and the receiving plate 2
5 has advanced to the lower part thereof, release the vacuum of the vacuum suction cup 22a, drop the pouch body 2 onto the receiving plate 25, immediately advance the vacuum suction cup 23a to the position shown by the dotted line, and remove the pouch body 2. is vacuum-adsorbed at the center of the fellow wall in the width direction. Next, the vacuum suction cup 23a is moved back to the position shown by the solid line, and the pouch body 2 is expanded until the bottom part 8 is fully opened. In this state, the receiving plate 25 is retracted, and the expanded pouch body 2 is located coaxially with the stopper body 3. Next, the vacuum of the vacuum suction cup 23a is released, the expanded Nokouchi main body 2 is dropped, and the stopper on the support body 19 at the station C is inserted into the hole 5 of the bottom part 8 as shown in FIGS. 9 and 10. The main portion 11 is inserted, and the flange portion 12 and the periphery of the hole are brought into contact.

At station D, the presence or absence of the pouch body 2 is detected by a detector (not shown).

Above the station E, there is a bottom surface 26a shaped approximately corresponding to the flange portion 12, and a recess 2 into which the main portion of the plug body can be inserted.
A heat bar 26 having a diameter of 6b is provided. When the support body 19 to which the pouch body 2 is attached stops at station E, the heat purifier 26 immediately descends to heat-seal the flange portion 12 and the inner surface around the hole portion 5, as shown in FIG.

Station FK Mo, Good 4 L<Hahi-) A heat purifier similar to Par 26 is installed, and at Station F, heat fusion is performed again, resulting in a complete heat fused part without defects such as pinholes. Secured.

Station G is provided with a cooling par (not shown) having the same shape as the heating par 26, and the support 1
At the same time as 9 stops, the cooling par is lowered to rapidly cool and solidify the heat-sealed portion to a temperature lower than the melting point of the plastic. At station H, the pouch body 2 with the stopper 3 attached, that is, the pouch l with the stopper attached (FIG. 12)
is pulled up and taken out from the support 19, and transported to the next process.

The present invention is not limited to the above embodiments,
Within the spirit of the present invention, for example, the stopper may have an appropriate structure depending on the type of liquid contained therein, and the liquid contained therein may be juice, alcoholic beverage, or other appropriate liquid.

Further, the material of the body piece and the bottom piece may be any appropriate material depending on the purpose of use. Further, it may be made by folding one flexible sheet of the body section fd into two. Furthermore, a pouch with a stopper may be used in which the stopper and the bottom are bonded together using an adhesive such as a hot melt adhesive.

The pouch with a stopper of the present invention has excellent sealing performance without the risk of defects such as pinholes occurring at the joint between the stopper and the pouch, and when used for storing infusions, the infusion needle touches the wall of the pouch. This has the effect that there is no risk of perforation. Furthermore, by setting the height of the stopper so that its lower end does not protrude beyond the bottom end of the pouch in an empty state, it has the advantage of being self-supporting. Further, the method of the present invention has the effect that the above-mentioned pouch with a stopper can be manufactured reliably.

[Brief explanation of the drawing]

Fig. 1 is a front view of a pouch with a stopper, which is an embodiment of the present invention, in an empty state, and Fig. 2 is a flat state of the main body of the pouch for forming the pouch shown in Fig. 1. Figure 3 is a bottom view of the empty pouch with the stopper shown in Figure 1, and Figure 4 shows the pouch with the stopper shown in Figure 1 filled with liquid and sealed. A partially cutaway perspective view of the lowered state;
Figure 5 is a longitudinal cross-sectional view taken along the line v"'-v in Figure 4, Figure 6 is a bottom view of the stopper with a stopper in the state shown in Figure 4, and Figure 7
The figure is a schematic plan view for explaining an example of the apparatus for manufacturing the pouch with a stopper shown in FIG. 1, and FIG. A front view, Fig. 9 is a partially cutaway front view of an example of the pouch body supply device installed at station C in Fig. 7, and Fig. 10 is a front view with a stopper attached to the pouch body at station C. FIG. 11 is a partially cut-away front view of the main part showing the condition, and FIG. Figure 12 is the seventh
FIG. 7 is a front view of main parts showing a state in which the pouch with a stopper is taken out from the support at station H in the figure. 1... Standing pouch with stopper, 2... Standing pouch body, 3... Stopper, 4... Body piece,
5... Hole, 6... Bottom piece, 7... Adhesive part, 7a.
... Upper edge, 8... Bottom, 11... Main part of plug body, 12
...flange part. Figure 1 In Figure 6 ar+ Figure 7 Figure 8 Figure 9

Claims (2)

[Claims] (1) A standing pouch body in which a bottom piece is formed by attaching a bottom piece having a hole to the inner surface of the lower end of the opposing body pieces so that the upper edge of the attached part is convex downward; A flange portion of the stopper is adhered to the inner surface around the hole in the bottom,
A standing pouch with a stopper, characterized in that the cylindrical main part of the stopper extends downward through the hole. (2) A bottom piece whose inner surface is made of thermoplastic plastic film and has a hole is attached to the inner surface of the lower end of the opposing body piece so that the upper edge of the attached part is convex downward to form the bottom part. The cylindrical shape of the plug body has a cylindrical main part and a flange part, and at least the flange part is made of thermoplastic plastic, with the bottom part of the standing pouch main body expanded and facing upward. A method for producing a standing pouch with a stopper, which comprises inserting the main part into the hole from the inside of the pouch, and then heat-sealing the flannel part to the inner surface around the hole.