JPH0685277U - Packaging bag - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the cold insulation function of an article and reduce the labor of management when the article is contained in a packaging bag and is carried or stored in a cold state. [Structure] A main bag body 2 for accommodating an article is integrally provided with a cold insulation part 6 formed by filling an auxiliary bag 7 formed of a water impermeable sheet with a cold insulation agent 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a packaging bag used for packaging meat products, fish and other items that need to be carried and stored in a cold state.

[0002]

[Problems to be solved by conventional technologies and devices]

 The packaging bag used to carry and store the goods is generally only formed of a soft synthetic resin sheet in a cylindrical shape with a bottom, and the goods are put in this packaging bag and cooled. In the case of carrying or storing in a state, conventionally, for example, a cooler as described in Japanese Utility Model Laid-Open No. 62-21321 is put in a packaging bag together with an article, and the article is kept with this cooler. I was trying to cool it.

However, when the cold insulator formed separately from the packaging bag as described above is put into the packaging bag, the cold insulator can freely move inside the packaging bag, so that vibrations during transportation can be prevented. As a result, the cold insulator shifts to the bottom or the corner of the packaging bag, and there is a problem that the cold insulator function for the article tends to be incomplete. In addition, since a large number of cold insulators must be stored separately from the packaging bag, there is a problem in that it takes time to manage the cold insulators.

An object of the present invention is to provide a packaging bag that solves these problems.

[0005]

[Means for Solving the Problems]

 In order to achieve this object, the present invention comprises a non-leakable filling of a cooling agent in an auxiliary bag formed of a non-permeable sheet at an appropriate position of a main bag body for containing articles. The cold storage unit is integrally provided.

[0006]

With the above configuration, for example, the entire packaging bag is put in a refrigerator or the like in advance to cool the ice pack, and then the article is housed in the main bag body or the main bag. By storing the item in the body and putting it in the refrigerator in the packaged state to cool the ice pack and the item in advance, the item stored in the main bag can be carried or stored in the cooled state. You can

However, since the cold insulation part is provided integrally with the main bag body, even if the main bag body or an article shakes during carrying or the like, the cold insulation part does not move largely inside the main bag body. Since it is not present, the items stored in the main bag can be cooled accurately in the cold insulation part, and the cold insulation function is significantly improved compared to the case where a cold insulation device separate from the packaging bag is used as in the past. Moreover, since it is not necessary to manage a large number of coolers as in the conventional case, the labor required for management can be significantly reduced.

[0008]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 4 show a first embodiment, and in these drawings, reference numeral 1 denotes a packaging bag having a main bag body 2 having a cylindrical shape with a bottom, and an opening portion of the main bag body 2 Is provided integrally with a pair of handbags 3 by an appropriate means such as heat fusion, and further, on the inner surface of the opening of the main bag body 2, a rail-shaped male locking body 4 provided with a locking projection 4a is formed. , The rail-shaped female locking body 5 having the engaging groove 5a is fixed so as to face each other, and the locking projection 4a of the male locking body 4 is engaged with the female locking body 5. By engaging with the groove groove 5, the opening of the main bag 2 is sealed.

Reference numeral 6 is a cold insulation portion integrally provided on the bottom surface of the main bag body 2. The cold insulation portion 6 is formed in an auxiliary bag 7 formed so as to extend in a substantially U shape and is made of a highly water-absorbent resin. It is formed by filling water-absorbing gel-like cooling agent 8 in a leakproof manner, and the bottom of the auxiliary bag 7 is integrally connected to the bottom of the main bag 7, while the upper end of the auxiliary bag 7 is connected. A water injection nozzle 9 for injecting water into the auxiliary bag 7 is fixed to the auxiliary bag 7 such that one end of the water injection nozzle 9 is exposed from the auxiliary bag 7 and the other end enters the auxiliary bag 7.

The auxiliary bag 7 is provided with a seat portion 7a connected to the bottom portion and the left and right vertical portions. With the above configuration, the entire packaging bag 1 is put in a refrigerator or the like to cool the cold insulation agent 8, and then the article A is placed in the space surrounded by the cold insulation portion 6 in the main bag body 2. Or, the entire packaging bag 1 is put in a refrigerator or the like in a state in which the article A is stored in an empty space surrounded by the cold insulation part 6 in the main bag body 2 to store the article A and the cold insulation agent. By cooling 8 and 8 in advance, the article A can be carried or stored in a cooled state.

Since the cold insulation part 6 is provided integrally with the main bag body 2 and the cold insulation part 6 does not move out of the main bag body 2, the article A can be cooled accurately. Moreover, since it is not necessary to prepare a separate cooler, it is possible to reduce the labor of management. When the auxiliary bag 7 is provided with the sheet portion 7a as in the embodiment, the main bag body 2 can be partitioned by the sheet portion 7a in the front and rear. There is an advantage that it can be stored in the state.

Further, providing the handbag 3 is particularly convenient for the consumer to take home. As shown in FIGS. 5 and 6, the packaging bag 1 can be continuously manufactured from the tube body 10 of the soft synthetic resin film. That is, while the tube body 10 is being transported along the longitudinal direction thereof, a portion of the tube body 10 spaced apart from the distal end surface by the length of the auxiliary bag 7 is disposed along the direction orthogonal to the longitudinal direction of the tube body 10. And heat-bonds (this heat-bonded portion is indicated by reference numeral 11) and opens toward the end surface of the tube body 10 at a portion located near the end surface of the tube body 10 with the heat-bonded portion 11 sandwiched therebetween. By heat-sealing in a U-shape in a plan view (this heat-sealing portion is shown by reference numeral 12), the auxiliary bag 7 and the main bag body 2 in the upside-down state are linearly connected to each other, After encapsulating powdery or other highly water-absorbent resin 8'in the auxiliary bag 7, sealing the opening of the auxiliary bag 7 and fixing the water injection nozzle 9 to the opening of the auxiliary bag 7 are performed by heat fusion. Do it.

Further, before and after the formation of the auxiliary bag 7, the male and female locking bodies 4, 5 are fixed to the opening of the main bag body 2, and the main bag body 2 is cut from the tube body 10. Then, the main bag body 2 is turned over so that the front and back sides thereof are turned over, fitted into the auxiliary bag 7, and finally the handbag 3 is attached to the opening of the main bag body 2. Injects water from the water injection nozzle 9 into the auxiliary bag 7 and causes the highly water-absorbent resin 8'to absorb water to form the gel-like cold insulating agent 8.

When water is injected into the auxiliary bag 7 and the super absorbent resin 8 ′ gels, the part of the water injection nozzle 9 that has entered the auxiliary bag 7 is flattened as shown in FIG. Since the auxiliary bag 7 is kept in a closed state by being pressed against the inner surface of the auxiliary bag 7 in this state, water above the allowable water absorption amount of the super absorbent resin 8'is injected into the auxiliary bag 7. However, the free water in the auxiliary bag 7 does not leak.

In the above-described embodiment, the main bag 2 is turned over so that the auxiliary bag 7 is integrally connected to the inner surface of the bottom of the main bag 7, but FIG. As shown as an example of No. 2, the main bag body 2 and the auxiliary bag 7 are separately formed by the tube body 10 of soft synthetic resin, and the auxiliary bag 7 is inserted into the main bag body 2. Alternatively, the bottom of the main bag 2 and the bottom of the auxiliary bag 7 may be fixed by heat fusion 11 '.

When the auxiliary bag 7 is formed so as to extend in a U shape and the inside thereof is filled with the super absorbent resin 8 ′, as shown in FIG. Water injection nozzles 9 may be provided at both ends. FIG. 8 shows a third embodiment which is another means for integrally connecting the auxiliary bag 7 to the bottom portion of the main bag body 2.

That is, in this embodiment, the main bag 2 and the auxiliary bag 7 are formed, for example, by forming the layers 2b and 7b on the outer surface side with a high melting point material and the layers 2c and 7c on the inner surface side with a low melting point material. The outer surface or inner surface of the main bag 2 and the auxiliary bag 7 are heat-sealed to each other, but the inner surface and the outer surface are formed in two layers so as not to be heat-sealed. A protrusion 7d is formed on the bottom of the auxiliary bag 7 such that the inner surface thereof overlaps with the inner surface of the bottom of the main bag 2, and in this state, the bottom of the main bag 2 and the bottom of the auxiliary bag 7 are paired. The heating plates 13 and 13 are used for pressing.

Then, the inner surfaces of the main bag body 2 and the inner surfaces of the auxiliary bag 7 are heat-sealed to form the bottom of the main bag body 2 and the bottom of the auxiliary bag 7, and the auxiliary bag 7 The protruding portion 7d is heat-sealed to the inner surface of the main bag body 2, so that the auxiliary bag 7 is integrally connected to the bottom of the main bag body 2. When formed as in this embodiment, since the inner surfaces of the main bag 2 and the inner surfaces of the auxiliary bags 7 are completely adhered to each other, even if the thickness of the main bag 2 and the auxiliary bag 7 is large, the bottom It can be reliably formed in a sealed state.

On the other hand, in FIG. 8, the water injection nozzle 9 is formed of a material that can be heat-sealed to the inner surface of the auxiliary bag 7, and a thin plate 15 for heat-sealing is inserted in the water injection nozzle 9 in a state of being inserted. By pressing the opening of the auxiliary bag 7 with the pair of heating plates 16 and 16 through the opening of the main bag body 2, the upper end of the auxiliary bag 7 is sealed and the water injection nozzle 9 into the auxiliary bag 7 is pressed. I am trying to fix it.

As shown in FIG. 8, when the main bag 2 and the auxiliary bag 7 are formed in two layers so that the inner surface and the outer surface are not heat-sealed, the auxiliary bag 7 is shown in FIG. The bottom part of the main bag 2 and the auxiliary bag 7 is turned over so that the inner surface of the main bag 2 is exposed so that the inner surface of the bottom of the auxiliary bag 7 overlaps the inner surface of the bottom of the main bag 2. And the auxiliary bag 7 is connected to the main bag body 2 at the same time.

As shown in FIG. 10, the packaging bag 1 is formed by a so-called side-sealing method using three original sheets 17, 18, and 19. That is, while the three original sheet materials 17, 18 and 19 arranged above and below are transferred along the longitudinal direction thereof, the lower original sheet material 19 and the intermediate original sheet material 18 are superposed and heat-sealed. The auxiliary bag 7 is formed by stacking the upper sheet material 17 on the auxiliary bag 7, and the auxiliary sheet 7 is fixed to the left and right side edges and the bottom of the auxiliary bag 7 by heat fusion. The original sheets 17, 18 and 19 are cut at the bottom of the main bag 2.

FIG. 11 shows another form of the cold insulation part 6, of which (a) forms the auxiliary bag 7 so as to extend only along the bottom part of the main bag body 2. As a result, the cold insulation part 6 is formed in a rod shape, and (b) shows that the auxiliary bag 7 is formed in pairs on the front sheet side and the back sheet side of the main bag body 2. A pair of plate-shaped cold insulating parts 6 are formed so as to face each other, and the article A is housed in a sandwich form between the cold insulating parts 6, 6.

In FIG. 11B, the main bag body 2 and the auxiliary bag 7 are shared. The shape of the cold insulating portion in the present invention is not limited to the above-mentioned embodiment, but can be variously changed according to the shape of the article to be housed, the required cold insulating function, and the like. Needless to say, various substances such as water and organic or inorganic gel substances can be used.

The main bag body and the auxiliary bag do not have to be formed of the same material, and the main bag body is formed of a water-permeable sheet, and only the auxiliary bag is formed of a non-water-permeable sheet. It is okay. Further, the means for integrally providing the auxiliary bag with the main bag body is not limited to the heat fusion as in the above-mentioned embodiment, but other means such as stapling or adhesion may be used.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a first embodiment.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV of FIG.

FIG. 5 is a diagram showing a manufacturing process of the first embodiment.

6 is a sectional view taken along line VI-VI of FIG.

FIG. 7 is a diagram showing a second embodiment and its manufacturing process.

FIG. 8 is a diagram showing a third embodiment and its manufacturing process.

FIG. 9 is a diagram showing a fourth example and its manufacturing process.

FIG. 10 is a diagram showing a fifth embodiment and its manufacturing process.

FIG. 11 is a sectional view showing a sixth embodiment.

[Explanation of symbols]

 A article 1 packaging bag 2 main bag body 6 cold insulation part 7 auxiliary bag 8 cold insulation material 9 water injection nozzle

Claims (1)

[Scope of utility model registration request] 1. A cold-retaining portion, which is a non-leakable filling of a cold-retaining agent in an auxiliary bag formed of a water-impermeable sheet, is integrally provided at an appropriate portion of a main bag for accommodating articles. A packaging bag characterized by that.