JPH0134867B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a storage bag for liquid foods, in which outside air is allowed to enter the bag before the bag is filled with human breast milk, soup, or other liquid foods. In a bag that maintains a flat bag shape with its outer periphery closed to prevent contamination from intrusion, a sealing band that serves as a core is pasted to make it easier to open by tearing when in use, and the bag is filled with food. After that, the adhesive layer provided on the sealing band is attached to the bag body by rolling the opening portion around the sealing band as a core, and the primary sealing is performed to form an opening that does not bend easily. Furthermore, the overlapping adhesive layer provided protruding from the outside of the bag can be overlaid on top of the roll using the adhesive layer provided on the overlapping adhesive layer to perform secondary sealing. Has a field.

(Prior art) As disclosed in Japanese Utility Model Publication No. 57-30273,
A reinforcing piece is glued to the upper part of the bag body, and the reinforcing piece 7
Provide a notch consisting of a groove punched with a press or the like along one edge of the reinforcing piece at one end directly above the reinforcing piece, and seal the opening above the reinforcing piece by heat bonding. To use this bag body, cut off the notch made by the press mentioned above at the opening directly above the reinforcing piece, and press the opening into a curved shape with your fingertips against the spring elasticity of the reinforcing piece. , a simple container having a structure in which a filler such as hot water is filled through an opening is known, but in this case, there is no disclosure that the opening is closed and adhesive is applied after opening, and other than that, there is no disclosure in actual practice. As disclosed in Publication No. 52-67513, a bag with an opening that is always open is covered with adhesive tape parallel to the opening with release paper, and the filling is inserted into the bag from the opening. It is known that after filling the opening, the opening is wrapped several times and fixed to an adhesive tape from which the release paper has been removed, but in the latter case, there is no core plate with an adhesive layer for wrapping the opening several times. from,
In the drawing, the rolled part can be shown as being flat, but in reality, the opening part has a bulge due to elasticity and cannot be sealed, and when filled with liquid such as soup, this leaks out. becomes a drawback.

(Problems to be Solved by the Present Invention) In view of the foregoing, the present invention allows the opening to be easily torn off by the guiding action of the sealing band without making a groove-shaped cut using a press, and the opening to be opened easily. Also, even when filled with liquid, by simply wrapping the opening once or twice, the stacked patch protruding from the bag body can be used to create a bag that has shape-retaining power through adhesive with the sealing band as the core. The object of the present invention is to make it possible to apply a strong double bond to the opening of the body by overlapping the adhesive to the opening of the body.

(Means for Solving the Problems) The present invention aims to solve the above-mentioned problems, and is a flat type in which the outer edge is folded back or melt-sealed to prevent outside air from entering the inside. The bag body 1 is provided with a sealing band 7 which selects the side that remains on the bag body when the bag is opened by tearing and guides the tear in a substantially straight line, and a peelable paper 9 is pasted on the outer surface of the sealing band 7. In addition to providing a tapered adhesive layer 8, a stacked adhesive piece 11 is provided that protrudes outward from the bag body 1 at a position where the bag body 1 is wound one to several times from the cut-out portion around the sealing band 7 as a core. The present invention relates to a storage bag for fluid foods, characterized in that an adhesive layer 12 on which a peelable paper 13 is attached is provided on the stacked adhesive strip 11.

(Example) The attached drawings show an example of the present invention.
One of the opposing edges 2, 2 of the bag body 1 is provided with a narrow strip-shaped welded part 4, 4, and the other opposing edge 3, 3 forms a welded part 5, 5 similar to the above-mentioned welded part. Alternatively, a long cylindrical injection sheet is used for the bag 1, and the upper and lower sides of the bag 1 in FIG. 1 are sealed by bending the injection sheet. The bag body 1 is held in a flat shape by expelling the air inside. An opening cut 6 is made in one or both of the welded parts 4, 4. Further, sealing bands 7, 7a are provided on both sides between the welded parts 4, 4 on both sides by selecting the side that is close to the notch 6 and remains on the bag body 1 when the bag is opened. The sealing bands 7, 7a may be formed integrally by thickening only that part of the bag body, or may be applied by adhering a tape made of paper, synthetic resin sheet, etc. that is difficult to tear. An adhesive layer 8 is provided on the outer surface of one of the sealing bands 7,
A peelable paper 9 is attached to the layer 8. It is not necessary to provide the sealing zone 7a.

The bag body 1 is sterilized by irradiating it with sterilizing radiation.

The bag 1 is opened by cutting it in a substantially straight line from the notch 6 using the sealing band 7 or 7, 7a as a guide, and then filling it with a liquid food product. When winding the winding into one turn, as shown in Fig. 1, the adhesive side of the adhesive tape 10 is placed on the back side of the bag body 1, corresponding to the position of the one turn. Layered adhesive strips 11, 1 that protrude laterally from the bag body 1 when pasted
1 is formed, adhesive layers 12, 12 are provided on the stacked pieces 11, 11 corresponding to the front side of the winding, and peelable papers 13, 13 are attached. When winding the winding twice, as shown in Fig.
The protrusions of the bags 1a and 11a from the bag body 1 are arranged so as to match the second turn, and the adhesive layers 12a and 12a and the peelable papers 13a and 13a are provided in the same manner as in FIG.

When winding three or four times, the position of the protrusion of the overlapping strip is changed depending on the number of windings.

11a, 12a, and 13a in this embodiment are represented by 11, 12, and 13 in other embodiments.

The bag 1 may be provided with an oblique welded part 4' as shown by the dotted line in the lower part of FIGS. 1 and 2, and a part of the welded part 4' or the outside of the welded part 4' may be cut off.

The present invention can also be applied to the encapsulation of solid foods containing liquid juice.

Others a are prints showing the cutting position.

In this embodiment, when the bag 1 is used, it is opened by cutting it open from the notch 6 using the sealing bands 7 and 7a as a guide, and then peeling off the peelable paper 9 from the adhesive layer 8 of the sealing band 7. (See Fig. 6). Then, as shown in Fig. 7, the sealing band 7 is used as a core to form a folded wrap in contact with the bag body 1 to form the wrapped portion 21. At the same time, as shown in the figure, the adhesive The wound part 21 is bonded with the agent layer 8 to form an opening that does not bend easily, and when it is wound once, the overlapping pieces 11, 11 are placed on the sides of the wound part 21 as shown in FIG. Since it matches,
The peelable protective paper 13 is peeled off from the overlapping adhesive sheets 11 to expose the adhesive layer 12, and the overlapping adhesive sheets 11 are bent 360 degrees as shown in FIG. 9, and the overlapping adhesives are applied as shown in FIGS. 9 and 11. , the adhesive layer 8 of the sealing band 7 and the adhesive layer 12 of the overlapping strip 11 form a double seal. FIG. 10 shows the same embodiment as FIG. 9 without the sealing piece 7a.

When applying the overlapping adhesive strips 11 after winding the sealing band twice or three times around the core, the overlapping adhesive strips 11 are used in different positions.

(Operations and Effects of the Present Invention) As is clear from the description of the above-mentioned embodiments, in order to open the bag body 1 which has been made into a flat shape by sealing the edges, it is necessary to cut open the bag body 1. Since the sealing band 7 provided at a selected position on the side of the body 1 serves as a guide for cutting, the opening can be opened in a beautiful manner without the need to make press cuts. Furthermore, an adhesive layer 8 to which peelable paper 9 is pasted is provided on the sealing band 7, and the bag body 1 is bent through the above-mentioned tear opening with the sealing band 7 as a core, and the peelable paper 9 is peeled off. The agent layer 8 is adhered to the outer surface of the bag 1 to provide a primary seal that does not bend easily, and then the bag 1 is sealed from 1 to 1 with the sealing band 7 as the core as described above.
A stacked adhesive piece 11 is provided that protrudes laterally from the bag body 1 in correspondence with the rolled-up position where it has been rolled several times, and the peelable paper 13 stuck to the adhesive layer 12 of the piece 11 is peeled off.
Seal is applied to the outermost surface of the bag body 1 that has been rolled once or several times, and a second seal is applied to the bag body 1 so that the rolled bag does not separate from the bag body 1 at all. Therefore, this first and second double sealing has the effect of almost completely preventing leakage of the liquid food contents and preserving them.

[Brief explanation of drawings]

The accompanying drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway front view of a bag 1 that is wound once around the sealing band, and FIG. 2 is a bag that is wound twice. 1 is a partially cutaway front view of the bag body 1, FIG. 3 is a cutaway side view taken along the line A-A in FIG. A plane cross-sectional view taken along the line B-B in Figure 5.
6 to 9 are longitudinal sectional views showing the order of sealing the bag opening (cut opening), and FIG. FIG. 11 is a longitudinal cross-sectional view, which is compared with FIG. 9 in the case where no food is present, and a perspective view showing a state in which food is filled and sealed. 1→Bag body, 4→Strip-shaped welded part, 7→Sealing band, 8→Adhesive layer, 9→Peelable paper, 11→Layered patch, 12→Adhesive layer, 13→Peelable paper.

Claims (1)

[Claims] 1 A flat bag whose outer edge is folded back or melt-sealed to prevent outside air from entering the inside.
A sealing band 7 is provided which selects the side that remains on the bag body when the bag is opened by tearing, and guides the tear in a substantially straight line, and a peelable paper 9 is pasted on the outer surface of the sealing band 7. In addition to providing the layer 8, a layered patch 11 is provided that protrudes outward from the bag body 1 at a position where the bag body 1 is wound one to several times from the cut-out portion around the sealing band 7 as a core, Peelable paper 13 is attached to the overlapped strip 11.
A storage bag for fluid foods, characterized in that it is provided with an adhesive layer 12 pasted with.