JPH0717738U - Sealed packaging bag - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a hermetically sealed packaging bag capable of preventing the occurrence of pinholes. [Structure] Sealing bag 10 made of barrier film
The reinforcing film 18 is attached to the front and back of the sealed packaging bag itself so as to cover the vicinity of the boundary portion 20 between the sealed portion and the non-sealed portion at the ends of the sealed portions 14 and 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hermetically-sealed packaging bag made of a barrier film, and more particularly to a hermetically-sealed packaging bag capable of preventing the occurrence of pinholes.

[0002]

[Prior art]

 Conventionally, when storing and storing easily oxidizable chemicals or hygroscopic chemicals, in order to avoid the effects of oxygen (air) and water (moisture), gas barrier film and water vapor barrier It is customary to seal in a film packaging bag.

[0003]

[Problems to be solved by the device]

 However, in the hermetically sealed packaging bag, pinholes may be generated due to impact during transportation, and the hermeticity of the packaging bag may be impaired. Therefore, the original purpose of using the packaging film of barrier film cannot be achieved. was there. However, it is possible to use a thick film to prevent such pinholes, but it is difficult to perform suitable packaging work when packaging with an automatic packaging machine, and there is a limit to the use of thick film. Thus, it is difficult to thicken the film and prevent pinholes completely. Then, while the inventor of the present application continued to earnestly study the cause of the occurrence of the pinhole, the following was revealed. In other words, the sealed packaging bag is usually transported in a case such as cardboard, but the corners of the sealed packaging bag are sealed by the sealing part and the film is broken, and the corners and the inner wall of the corrugated board are sealed. It was found that and were damaged by rubbing against each other due to the impact during transportation, and as a result, pinholes were easily generated in the corners. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a hermetically sealed packaging bag capable of preventing the occurrence of pinholes.

[0004]

Means for Solving the Problems The present invention has been made to achieve such an object, and the present invention is configured as follows. A In a hermetically sealed packaging bag composed of a gas barrier film or a water vapor barrier film, a reinforcing film is provided so as to cover the end of the sealed portion of the hermetically sealed packaging bag itself and the vicinity of the boundary between the sealed portion and the non-sealed portion. A sealed packaging bag characterized by being attached. B The hermetically sealed packaging bag itself has a square shape with at least the upper and lower sides or the left and right sides sealed by at least the seal portions, and the reinforcing films are arranged at the four corners, and the tack label is used as the reinforcing film. Sealed packaging bag as described.

[0005]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In FIGS. 1 to 3, 10 is a hermetically sealed packaging bag in which a contents container 12 containing a readily oxidizable drug solution is enclosed. The hermetically-sealed packaging bag 10 is made of a gas barrier film, and the back portion is vertically attached to the back, and the upper and lower end portions are sealed by sealing portions 14 and 16 (shown by diagonal lines in the figure) to be hermetically sealed. In addition to the content container 12, an oxygen scavenger and a desiccant are enclosed in the hermetically sealed bag 10 as needed. Reinforcing films 18 are attached to both ends of the seal portions 14 and 16, that is, the four corners of the hermetically sealed packaging bag 10 over the front and back of the hermetically sealed packaging bag 10. As shown in FIG. 4 (a), both ends of the seal portions 14 and 16 are usually arcuate, and as shown in FIG. 4 (b), near the boundary portion 20 between the seal portion and the non-seal portion. One reinforcing film 18 is attached in a state of covering the. As another embodiment of the present invention, as shown in FIG. 5, a reinforcing film 22 may be attached to the four corners of the hermetically sealed packaging bag 10 so as to cover the edges thereof. As the reinforcing films 18 and 22, for example, a colorless and transparent tack label of a polyethylene terephthalate film (hereinafter referred to as a PET film) having a gas barrier property can be applied. The tack label is a film (eg, 38μ thick) cut into a predetermined shape, coated with adhesive (or adhesive) on the back, and then attached to a mount that can be easily peeled off. It can be applied to each location, and by using a tack labeler (tack label sticking machine), the sticking work can be performed automatically and efficiently. Furthermore, it is possible to combine a packaging machine such as a pillow packaging machine and a tack labeler so that the packaging work and the reinforcing film attaching work can be performed at the same time.

Although the PET film is used as the reinforcing film in the above-mentioned examples, other films can be used instead of the reinforcing film, and other known means using the film instead of using the tack label. May be adopted. Further, in the above-mentioned embodiment, the case of the hermetically-sealed bag made of the gas barrier film has been described, but it is needless to say that the hermetically-sealed bag can be applied to the case of the water vapor barrier film. Further, the present invention can be applied to other packaging bags than the pillow packaging bag.

[0007]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. According to the hermetically-sealed packaging bag of claim 1, a reinforcing film is attached so as to cover the vicinity of the boundary between the seal portion and the non-sealed portion at the end of the sealed portion of the hermetically-sealed packaging bag. The most vulnerable part is protected, and as a result, the occurrence of pinholes can be prevented, and the hermeticity of the hermetically sealed packaging bag can be maintained and improved. Furthermore, if pinholes have already occurred, the effect of restoration can be expected by attaching the reinforcing film. According to the hermetically sealed packaging bag of the second aspect, since the tack label is used as the reinforcing film, the tack labeler (label sticking machine) can be used, and the sticking work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is a rear view showing the same embodiment.

4A and 4B are partially enlarged views of the same embodiment.

FIG. 5 is a rear view showing another embodiment of the present invention.

[Explanation of symbols]

 10 Sealing packaging bag 14 Seal part 16 Seal part 18 Reinforcement film 20 Border part 22 Reinforcement film

Claims (2)

[Scope of utility model registration request] 1. A hermetically sealed packaging bag comprising a gas barrier film or a water vapor barrier film,
A hermetically sealed packaging bag, characterized in that a reinforcing film is attached so as to cover the end portion of the hermetically sealed packaging bag itself and the vicinity of the boundary between the sealed portion and the non-sealed portion. 2. The hermetically sealed packaging bag itself has a rectangular shape in which both upper and lower sides or left and right sides are sealed by at least sealing portions, and the reinforcing films are arranged at the four corners, and a tack label is used as the reinforcing film. The sealed packaging bag according to 1.