JP5347310B2 - Sterilization package - Google Patents

Description

The present invention relates to sterilization packaging sterilization can be performed from the outside using the sterilizing seal.

Patent Literature 1 is a culture bag formed by thermocompression bonding a breathable porous sheet to an opening for ventilation of a culture bag made of a plastic film, and the strength of thermocompression bonding is 0.1 to 0.1 with a tensile tester. It is 1.5kgf / 15mm, filled with culture medium raw material in the culture bag, inoculated with mushroom inoculum, and the breathable porous sheet of the culture bag, mushroom mycelium spread more than 50% from the top of the culture medium This is a method for cultivating mushrooms, which is characterized by peeling and further culturing at the time of being removed.
In FIG. 1 of Patent Document 1, an opening for ventilation is formed in a bag made of a plastic film formed by folding a gusset into a bag shape, and a breathable porous sheet is heated in the opening for ventilation. The joint is formed by pressure bonding. In FIG. 2B, the amount of mushroom mycelium on the top surface of the medium and the secretion thereof are propagated even if the infiltrated bacteria are invaded by peeling the air-permeable porous sheet to some extent. In order to maintain the vitality of the mushroom mycelium at a high level and to obtain the early occurrence of fruiting bodies and high yield, the timing when the porous breathable sheet is peeled off is difficult. It is described that the oxygen consumption in the culture bag described in the above is preferably at or immediately after the peak. In other words, the breathable porous sheet is intended to ensure breathability for culturing mushrooms in a plastic film bag. After cultivating some bacteria, the breathable sheet is peeled off and placed outside the bag. The body entity is generated by inducing the body entity base.

Patent Document 2 discloses that a breathable filter for a culture container of mushroom fungi is laminated on a breathable perforated film having a predetermined size made of a thermoplastic resin and having a predetermined air permeability characteristic and having a pH of 7-11. As a result, the required air permeability can be reliably maintained during the cultivation period without being influenced by the external humidity environment.
And as shown in FIG. 3 of patent document 2, the culture container 4 of the mushroom fungus is formed from a cylindrical bag-shaped material having an opening 7 at its upper end, that is, a cylindrical bag-shaped material. The closed lower end 8 is folded inward, and heat seal lines 9 are formed so as to divide the left and right corners of the bottom folded in a triangular shape at two places on the upper side surface. A ventilation hole 5 is formed, and a breathable filter A is attached by heat sealing so as to cover the ventilation hole 5. In this invention, in order to maintain air permeability, a non-woven fabric having a pH of 7 to 11 having air permeability is superposed on and integrated with an air permeable perforated film having air holes.

On the other hand, a packaging bag which is mainly a medical packaging bag and can sterilize the contents in the bag from the outside of the bag has been conventionally packaged by the method shown in FIG. That is, the packaging bag 50 containing the contents A is folded back at the lower part 52 of the bag, the left and right sides of the bag are the seal portions 54, the upper part 56 is folded back, and the sterilization sheet 58 is extended to the folded point. It is installed. Since the sterilization sheet 58 is also heat-sealed on the seal portion 54, a step 60 is generated between the sterilization sheet 58 and the seal portion 54.
By the way, since the sterilization sheet is made of paper, sterilization can be performed only by gas sterilization (EOG; ethylene oxide gas). Further, since a step is generated between the sterilization sheet and the seal portion, the possibility of leakage cannot be denied at this portion. In addition, since the sheet for sterilization crosses the paper in the lateral direction, the amount of paper material used is large and the packaging cost is high. Further, as shown in FIG. 5, when the notch 62 is provided in the bag upper portion 56, the opening is made in the vertical direction, so that the paper is not always easily cut.
JP-A-9-187168 Japanese Patent Laid-Open No. 9-248059

In the method of FIG. 5, which has been used mainly for medical packaging bags in the past, the sterilization type is limited, there is a risk of leakage, packaging costs are high, and bag opening is also hindered. The main object of the present invention is to provide a medical packaging bag that overcomes these drawbacks.
Further, Patent Documents 1 and 2 relates to the ventilation holes provided as applications breathability, unlike also present invention configuration, is provided with a vent seal to the outer surface.

In order to solve the above-mentioned problems, the configuration of the present invention is such that the lower part of the rectangular sterilization package is folded, seals are provided on the left and right sides and the upper part, and the holes that are open to the inside from the edge of the sterilization package are With a sterilization seal larger than the hole , heat seal from the inside of the sterilized package to the outside of the hole , leaving a part of the unheat-sealed part , containing the contents therein, and sterilizing the contents from the outside of the holes A notch for opening can be provided in the upper seal part so that it can be opened in the lower direction of the sterilization package, and the seal for sterilization is applied to the part that does not interfere with the opening in the opening direction of the notch. Is provided.
The sterilization seal is preferably made of a resin film as a main raw material, and the sterilization package is preferably a plastic film pouch packaging bag.
The hole may be provided in the center of the rectangular sterilization package, and the opening notch may be provided near the right seal.

According to the first aspect of the present invention, the lower part of the rectangular sterilization packaging body is folded back, the seal part is provided on the left and right and the upper part, and the hole opened to the inner side from the edge of the sterilization packaging body is formed from the hole. A large sterilization seal is used to heat seal from the inside of the sterilization package to the outside of the hole , leaving a non-heat-sealed part partially, containing the contents therein, and sterilizing the contents from the outside of the holes The seal part for sterilization can be greatly reduced compared with the conventional product, and the packaging cost can be reduced. In addition, since the sterilization seal is provided inside the open hole, the step exists inward, but the range of the step is small, and the hole opened to the inside from the edge of the sterilization package Because it exists, there is little possibility of seal leak.
Also, a notch for opening is provided in the upper seal part so that it can be opened in the lower direction of the sterilization package, and a sterilization seal is provided in a part that does not interfere with the opening in the opening direction of the notch. So opening is smooth.

Details of the present invention will be described below. FIG. 1 is a front view of the packaging bag of the present invention. Reference numeral 10 denotes a plastic film pouch packaging bag (sterilization packaging), which is folded back at the lower part 12 of the bag. The left and right sides of the bag are the seal parts 14 and 16, and the upper part is the seal part 18. A circular hole 20 is opened in the vicinity of the center on the inner side from the edge of the pouch packaging bag 10. The opening position is not necessarily near the center. In short, any position where sterilization is possible is acceptable. Inside the pouch packaging bag 10, moreover the inside of the bore 20, the sterilizing seal 30 is heat sealed from the inside.

Figure 2 (a) is a detailed sterilizing seal 30 and the hole 20 in FIG. 1, as shown in FIG. 2 (b), sterilizing seal 30 is heat-sealed portion from the inside of the pouch packaging bag 10 32, the pouch 10 is heat sealed. 34, Ri Ah at portions not any processing at the hole 20 side of the heat-sealed portion, the heat seal is provided outside the hole 20.

It is preferred sterilizing seal 30 is a resin film, but is not limited thereto. In short, what is necessary is that the thermocompression bonding to the pouch packaging bag can be set within a predetermined bonding strength range. For example, in sterilized paper, a mixture of synthetic pulp typified by polypropylene and polyethylene and wood pulp is used. The desired peel strength can be obtained by adjusting the mixing ratio of the synthetic pulp that is used for heat melting and the wood pulp that does not have heat sealability. It may also be molded from olefinic plastics such as polyethylene and polypropylene, polyester, nylon, vinyl, polyvinyl chloride, etc., and from these, sheets with different physical properties such as melting temperature and density are laminated together. used through as sterilization seal, by layers of each material is peeled off when the peeling may be a predetermined bonding strength. In addition, when natural products such as wood pulp that does not have meltability in thermocompression bonding are the main raw materials, easy peel properties can be imparted by interfacial peeling by using a material coated with a hot-melt type paste.
Similarly, for example, a nonwoven fabric containing 80% by weight or more of pulp fibers may be used.
In Examples seal for paper sterilization of the present invention is heat-sealing material is coated on the surface. The sterilizing seal as described above may be replaced in PE resins. Ie if the seal for paper sterilization, can not be adopted only gas sterilization, PE resin sterilizing seal is gas sterilization, steam sterilization, sterilization methods such as gamma sterilization can be widely selected.
The sterilizing seal of this invention, sterilizing gas it is permeable, toxic bacteria, etc. is one that does not transmit.

  In FIG. 1, an opening notch 22 is formed at the edge of the sterilized package, and the pouch packaging bag 10 can be opened and cut along the opening direction of the notch, that is, along the line of 24 breaks. And the sterilization seal | sticker 30 is provided in the part which does not interfere with the opening. Since the pouch packaging bag 10 can be cut at this portion, the pouch packaging bag 10 can be cut without interference with the sterilization seal 30, which is efficient.

FIG. 3 is a front view illustrating the use state of the present invention, and the contents A are accommodated inside the pouch packaging bag 10. Sterilizing seal 30, the hole 20 is provided in the center side of the pouch packaging bag 10. The position where the hole 20 is provided is not particularly required to be in the center. In short, as long as the sterilization operation is not hindered, the position may be anywhere. Reference numeral 22 denotes a notch.

FIG. 4 is a back view for explaining the use state of the present invention, and the content A is accommodated inside the pouch 10.
Sterilization packaging body sterilizing seal has been added in the present invention is not limited to the above embodiments, main part of the invention is that the reduction in the required range the sterilizing seal.

It is a front view of the sterilization packaging body of this invention. (A) is an enlarged front view of the sterilizing seal, a line b-b sectional view of (b) is (a). It is a front view which shows the use condition of the sterilization packaging body of this invention. It is a reverse view which shows the use condition of the sterilization packaging body of this invention. It is a front view which shows the example of the conventional medical sterilization packaging body.

10 pouch packaging bag 12 bag bottom 14 and 16 right and left sealing portions 18 upper seal portion 20 circular hole 22 notch 24 dividing line 30 sterilizing seal 32 heat-sealed portion

Claims (3)

Fold the bottom of the rectangular sterilization package, and provide seals on the left and right and top,
Heat seal with a hole opened inward from the edge of the sterilized package with a sterilization seal larger than the hole from the inside of the sterilized package to the outside of the hole , leaving a part of the unheated seal. And the contents can be contained in it, and the contents can be sterilized from the outside of the hole,
An opening notch is provided in the upper seal portion so that the opening can be opened in the lower direction of the sterilization package, and the sterilization seal is provided in a portion that does not interfere with the opening in the opening direction of the notch. A sterilized packaging body characterized by that.   The sterilization packaging body according to claim 1, wherein the sterilization seal is made of a resin film as a main raw material, and the sterilization packaging body is a pouch packaging bag made of a plastic film.   The sterilization package according to claim 1, wherein the hole is provided in a central portion of a rectangular sterilization package, and the notch for opening is provided near a right seal portion.

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