Continous package train of deoxidizing agent

Description: TECHNICAL FIELD [Detailed description of the invention]

[Industrial application field] The present invention relates to a package of oxygen scavenger in which an oxygen scavenger is sealed in a plurality of packaging bags continuously connected in at least one direction and formed in a band shape as a whole, and also relates to a device for cutting the package. ..

[Conventional technology] Oxygen scavenger packaging is to store a material that absorbs oxygen in a small bag and seal it together with foods and pharmaceuticals to preserve and maintain the quality of the foods. Established as one. In addition, this oxygen scavenger package has come to be applied in all areas where the presence of oxygen has an adverse effect. Then, this oxygen scavenger package is used by being sealed and sealed in a bag or can made of a film having a high gas barrier property together with, for example, food. Here, when the oxygen scavenger package is put into the bag or can together with food or the like, a band-shaped package is formed by continuously connecting the oxygen scavenger package in substantially one direction in order to save labor. Then, at the time of loading, the packaging is cut into a single package by an automatic cutting machine, and the packaging is charged into the bags and cans, respectively. Here, FIG. 2 shows a state in which the conventional continuous package is cut, and reference numeral 10 indicates a strip-shaped continuous package composed of a plurality of oxygen scavenger packages continuously connected in one direction. It is a body, and reference numeral 12 is an automatic cutting machine. The automatic cutting machine 12 includes two thickness detectors 14, which detect the difference in the thickness of the seal portion between the bag portion containing the oxygen scavenger and the adjacent bag portion of the strip-shaped package 10. , The cutter 16 is operated in synchronization with this detection result, thereby cutting the seal portion. Here, the strip-shaped package 10 is folded in the case 18 at its seal portion, is stored in a layered state, and is made to stand by, and is supplied to the automatic cutting machine 12 in order from the uppermost layer portion.

[Problems that the invention tries to solve] However, when the strip-shaped package 10 is made to stand by in a layer-folded state in this way, the folds are often not restored while the folded seal portion reaches the thickness detector 14 of the automatic cutting machine 12. Therefore, there is a risk that the thickness detection by the thickness detector 14 will have an error, and therefore the cutting by the cutter 16 cannot be performed at an appropriate position. This is particularly remarkable when a packaging material whose surface is made of a plastic film is used for the oxygen scavenger packaging. This is the same even when the phototube mark is detected instead of the thickness detection. Further, when a packaging material whose surface is made of a plastic film is used, it is difficult to make creases due to its elasticity, and it is difficult to fold the strip-shaped package 10 well into layers. In addition, many oxygen scavenger packages exert an oxygen absorbing effect only when left in the air. Therefore, it is necessary to prevent exposure to the atmosphere as much as possible except when enclosing the package with food or the like. However, as described above, when the strip-shaped package 10 is made to stand by in the folded layered state in the case 18, air easily flows between the layers folded in the layer during the waiting, and all the oxygen scavengers are used. The package may absorb oxygen, and therefore, when it is cut by the cutter 16 of the automatic cutting machine 12, the oxygen absorption capacity may have already decreased. In addition, when oxygen absorption starts during standby in this way, heat is generated, and since this is folded and laminated, heat is stored, and the water originally held by the oxygen scavenger evaporates, which promotes a decrease in oxygen absorption capacity. Will result in Therefore, conventionally, there is a limit to the amount of the strip-shaped package 10 when the automatic cutting machine 12 automatically and continuously cuts the strip-shaped package 10. The present invention has been made in view of such problems of the prior art, and an object of the present invention is to cause a defect in thickness detection when continuously cutting a strip-shaped package using a cutting machine. Provided are an oxygen scavenger continuous package capable of processing a large amount of strip-shaped package and a cutting device thereof by preventing a decrease in oxygen absorption capacity as much as possible during standby before supplying to the cutting machine without squeezing. To do.

[Means to solve the problem] In order to achieve this object, the present invention is an oxygen scavenger obtained by winding a strip-shaped package in which an oxygen scavenger is sealed in a plurality of packaging bags continuously connected in at least one direction around a winding core. In a continuous package, the surface of the packaging bag is made of a plastic film, and the oxygen scavenger is a self-reactive type. Provided is an oxygen scavenger continuous package having a maximum oxygen absorption amount of 5% or more per hour. Further, the strip-shaped package provides a continuous oxygen scavenger package in which the longitudinal ends of the strip-shaped package are wound around the winding core in a coil shape in which the longitudinal ends of the band-shaped package are in contact with each other. And again, the oxygen permeability of the winding core is 100,000cc / m.²-Provides a continuous package of oxygen scavenger with 24Hr · atm or less. Further, in the present invention, a strip-shaped package in which an oxygen scavenger is sealed in a plurality of packaging bags continuously connected in at least one direction is supplied to a cutting machine to continuously form a single package. In the cutting device for the continuous package of oxygen scavenger to be manufactured, the surface of the packaging bag is made of a plastic film, and the oxygen scavenger is a self-reactive type and is left at 25 ° C in the air and 50 to 60% in humidity. A continuous package of oxygen scavenger, which has a decay rate of 5% or more per hour of the maximum oxygen absorption amount of the oxygen scavenger and is wound around the core, is placed on the entrance side of the cutting machine. Provided is a cutting device configured to supply the outermost end of the continuous package to a cutting machine. Further, the strip-shaped package provides a cutting device in which the strip-shaped package is wound around the winding core in a coil shape in which the longitudinal end portions of the strip-shaped package are in contact with each other. Furthermore, the oxygen permeability of the winding core is 100,000 cc / m.²-Provides a cutting device with 24 Hr · atm or less.

[Action] By winding the strip-shaped package around the winding core in this way, no creases are made in the strip-shaped package, and therefore, the thickness detection and the photoelectric tube mark detection in the cutting machine are not defective. Therefore, the strip-shaped package can always be cut at an appropriate position by a cutting machine to obtain a single oxygen scavenger package. Further, since the band-shaped package is wound in a coil shape, that is, in a layer shape, air does not flow between the layers of the band-shaped package other than the outermost layer, and a decrease in the oxygen absorption capacity thereof is prevented. Further, even in the outermost layer, since only one side of the package is exposed to the atmosphere, the decrease in oxygen absorption capacity is small. Further, an oxygen scavenger that is self-reactive and has an hourly decay rate of 5% or more of the maximum oxygen absorption amount of the oxygen scavenger when left at 25 ° C in the atmosphere and 50 to 60% in humidity. Since it is adopted, it is possible to surely prevent the deactivation of the oxygen scavenger which is preferable for the storage of foods and the like. Furthermore, since the strip-shaped package is wound in a coil shape in which the longitudinal end portions thereof are in contact with each other, the flow of air at the longitudinal end portion of the strip-shaped package is also prevented, so that the oxygen absorption capacity is reduced. Is further prevented. And again, the oxygen permeability of the winding core is 100,000cc / m.² By setting it to 24Hr atm or less, air is prevented from flowing to the part in contact with the winding core through the winding core, so that the decrease in oxygen absorption capacity of the oxygen scavenger should be further reduced. Can be done.

[Example] Hereinafter, the present invention will be described with reference to examples shown in the drawings. First, FIG. 3 shows the outer shape of the strip-shaped packaging body 10. In this strip-shaped packaging body, an oxygen scavenger is sealed in each of a plurality of packaging bags 20 continuously connected in one direction, and the openings thereof are formed. The portions are sealed, and the bag portion 22 containing the oxygen scavenger and the sealing portion 24 between the adjacent bag portions 22 are alternately and repeatedly positioned in the continuous direction thereof. The example shown in FIG. 3 is a so-called three-way seal package in which only the three sides of the bag portion 22 are sealed. Here, as the oxygen scavenger, that is, the oxygen absorber, sulfite, hydrogen sulfite, nitionate, ferrous salt, hydroquinone, catechol, resorcin, pyrogallol, ascorbic acid, longalit, ascorbic acid and / or its Oxygen scavenger containing salt, isoascorbic acid and / or its salt, sorbose, glucose, lignin, dibutylhydroxytoluene, butylhydroxyanisole, etc., or oxygen scavenger containing metal powder such as iron powder, and even oxygen. A gas-generating oxygen scavenger or a carbon dioxide-absorbing oxygen scavenger is used. Of these oxygen scavengers, preferably, an oxygen scavenger containing ascorbic acid and / or a salt thereof, or a metal powder such as iron powder is used. Further, as the packaging material of the package, for example, a material obtained by laminating and adhering a perforated plastic film, paper and a perforated polyethylene film is used, and various materials are selected and used according to other uses. Further, in the oxygen scavenger continuous packaging in which the strip-shaped packaging is wound around the core, the packaging material strength is required so that the packaging is not damaged by the winding tension, and back printing is possible. Therefore, it is preferable to use a packaging material whose surface is made of a plastic film such as polyethylene terephthalate, polyamide, polypropylene, or cellophane because it is necessary to have excellent safety and hygiene. Then, as shown in FIG. 4, the strip-shaped package 10 having such a configuration is brought into contact with the winding core 28 of the winding bobbin 26 so that the ends 10A and 10B of the strip-shaped package 10 in the longitudinal direction L come into contact with each other. As shown in FIG. 5, the wound material is airtightly sealed in a bag 30 made of a film having a high gas barrier property, and is used for distribution in this state. Then, when the strip-shaped package 10 is cut into individual oxygen scavenger packages and put into food or the like, as shown in FIG. 1, the winding bobbin 26 around which the strip-shaped package 10 is wound is put into a bag. It is taken out from 30 and rotatably supported by a bracket 32 provided on the entrance side of the automatic cutting machine 12, and is supplied to the automatic cutting machine 12 from the end of the outermost layer of the strip-shaped package 10. In this way, since the strip-shaped package 10 is made to stand by in the wound state of being wound around the winding bobbin 26, the strip-shaped package 10 is not made any creases. Therefore, the thickness detector of the automatic cutting machine 12 There is no risk of interfering with the thickness detection at 14. Further, when the phototube mark detector is installed instead of the thickness detector 14, the detection accuracy does not decrease in the same manner. Further, as shown in FIG. 1, the take-up bobbin 26 is left in the air, but the strip-shaped package 10 has the ends 10A and 10B (see FIG. 4) in the longitudinal direction L in contact with each other. Since it is wound into a coil so as to be wound, only the outer layer portion thereof is exposed to the atmosphere, and therefore, the strip-shaped package 10 other than the outermost layer is prevented from deteriorating its oxygen absorption capacity. Further, even in the outermost layer, only one side of the package 10 is exposed to the atmosphere, and the decrease in oxygen absorption capacity is small. Therefore, when winding the band-shaped package 10 on the winding bobbin 26, the winding pressure is increased to such that the packaging bag is not physically hindered, whereby the band-shaped package 10 other than the outermost layer of the band-shaped package 10 It is better to prevent air from flowing in between. In the conventional strip-shaped package 10 in the folded state as shown in FIG. 2, it is extremely difficult to prevent the flow of air between the layers. Further, when the material of the winding core 28 of the winding bobbin 26 has a large air permeability, the strip-shaped package 10 of the portion wound around the winding core 28 starts absorbing oxygen through the winding core 28 and has an oxygen absorbing capacity. Since there is a risk of deterioration, the material of the winding core 28 is preferably one having low air permeability, and for example, thick paper, polyethylene, polypropylene, or other plastic is preferably used. In particular, the oxygen permeability is 100,000cc / m² Materials of 24 Hratm or less are more suitable. Further, if the circumference of the winding core is too small compared to the size of the winding direction of each oxygen scavenger package to be wound, the winding will be curled and problems such as poor cutting will occur during use. Therefore, the circumference of the winding core needs to be at least twice the dimension in the winding direction of each package, and preferably at least three times the circumference. The structure of the automatic cutting machine 12 is the same as that of the conventional one shown in FIG. 2, 16 is a cutter that operates in synchronization with the detection result by the thickness detector 14, 34, 36, 38 are guide rollers, and 40 is a guide roller. The vibrators 42 and 44 are feed rollers. In this way, in the so-called self-reactive type that absorbs oxygen simply by being left in the atmosphere by adopting a structure in which the oxygen scavenger continuous package is wound around the core, the oxygen of the oxygen scavenger itself is oxygen. The strip-shaped package 10 can be accurately cut at the position of the seal portion 24 by the cutter 16 of the automatic cutting machine 12 without lowering the absorption capacity. In particular, oxygen scavengers with an oxygen absorption capacity decay rate of 5% or more when left in the atmosphere (attenuation rate of maximum oxygen absorption per hour when left in the atmosphere at 25 ° C and humidity of 50 to 60%) Conventionally, the oxygen absorption capacity is greatly reduced when left in the air, and the number of individual packages contained in the oxygen scavenger continuous package cannot be increased, so that an automatic cutting machine is practically used. Although impossible, according to the present invention, it can be used without problems. Further, since the strip-shaped package 10 is wound around the winding core 28 in a coil shape in which the longitudinal end portions 10A and 10B are in contact with each other, air flow at the longitudinal end portions 10A and 10B of the strip-shaped package 10 is also prevented. it can. Therefore, it is possible to further prevent a decrease in oxygen absorption capacity. And again, the oxygen permeability of the winding core 28 is 100,000cc / m.² Since it is set to 24Hr · atm or less, air is prevented from flowing to the part in contact with the winding core 28 through the winding core 28, so that the decrease in oxygen absorption capacity of the oxygen scavenger should be further reduced. Can be done.

[Example] Next, an experimental example of this example is shown below. Using a packaging material with a width of 100 mm made of a perforated polyethylene terephthalate film (thickness 12 μ) on the surface, 3.0 g each of iron-based oxygen scavenger composition is filled, and the width is 50 mm, the length as a single package is 50 mm, and the length is 50 mm. A strip-shaped package with both sides connected to another single package is wrapped in order around a bobbin with a brim made of cardboard with an inner diameter of 3 inches and a thickness of 7 mm, and 2,000 pieces of oxygen scavenger are continuously packaged. Created a body. Immediately after preparation, it was placed in a vinylidene chloride coated stretched nylon / polyethylene bag, degassed, and sealed. As a comparative example, using the same material, crease the seal part every 8 packets, create a 2,000-piece foldable continuous oxygen scavenger package, and put it in a vinylidene chloride-coated stretched nylon / polyethylene bag. , Degassed and sealed. The above two types of oxygen scavenger continuous packaging are opened and cut using an automatic cutting and loading machine (NR4 manufactured by Asahi Metal Co., Ltd.) at a speed of 20 packaging bags / min. , The change in oxygen absorption capacity of the 2,000th oxygen scavenger was measured. The oxygen absorption capacity was calculated as the amount of oxygen absorbed by enclosing an oxygen scavenger together with 3 liters of air in a vinylidene chloride-coated stretched nylon / polyethylene bag, sealing it, storing it at 25 ° C, and measuring the oxygen concentration after 7 days. The results are shown in Tables 1 and 2.<img file="JP2536498B2_D0001.tif" /><img file="JP2536498B2_D0002.tif" /> As can be seen from the first and second, in the experimental example, there was no cutting failure in the automatic cutting input machine. On the other hand, in the comparative example, creases were hard to form and workability was poor. In addition, cutting defects due to creases occurred three times. Furthermore, in the experimental example, there was almost no decrease in oxygen absorption capacity, whereas in the comparative example, the decrease in capacity was large, and it was practically impossible to use the 2,000th one.

[effect] As described above, according to the present invention, a strip-shaped package in which a plurality of oxygen scavenger packages are continuously connected is supplied to an automatic cutting machine to continuously produce a large amount of a single oxygen scavenger package. It is equipped with a self-reactive oxygen scavenger that has an hourly decay rate of 5% or more of the maximum oxygen absorption amount of the oxygen scavenger when left at 25 ° C in the atmosphere and 50 to 60% in humidity. It is possible to prevent a decrease in the oxygen absorption capacity of the waiting strip-shaped package. Therefore, it is possible to surely prevent the strip-shaped package provided with the oxygen scavenger preferable for storing such foods from being inactivated, and it is possible to obtain the effect that the strip-shaped package can be used in the automatic cutting machine without any problem. .. Further, there is an excellent effect that the cutting position of the strip-shaped package by the automatic cutting machine is always accurately positioned at the seal portion, and a high-quality oxygen scavenger package can be obtained. Further, since the surface of the packaging bag is made of a plastic film, the oxygen scavenger package can be wound around the winding core with a higher tension, and as a result, air flows between the layers of the oxygen scavenger package. Can be reliably prevented.

[Simple explanation of drawings]

FIG. 1 is a front view showing the entire cutting device of the oxygen scavenger continuous package according to the present invention, FIG. 2 is a front view showing the conventional cutting device, and FIG. 3 is a perspective view showing a strip-shaped package. FIG. 4 is a perspective view showing a state in which the strip-shaped package is wrapped around the bobbin, and FIG. 5 is a perspective view showing a state in which the strip-shaped package wrapped around the bobbin is wrapped. 10 ...... Strip-shaped packaging 12 ...... Automatic cutting machine 26 ...... Winding bobbin 28 ...... Core