JP3651719B2 - Quality preservation method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is enclosed in the storage package of foods, relates to quality maintenance How the quality maintenance agent that combines the desiccant and oxygen absorber used to reduce the humidity and the oxygen concentration in the packaging container It is.
[0002]
[Prior art]
A desiccant and an oxygen scavenger are enclosed in packaging containers such as seaweed, rice crackers, and peanuts to prevent moisture absorption and oxidation. The oxygen scavenger acts on the principle of absorbing oxygen in the packaging bag by the oxidation reaction of iron and organic matter in the presence of water, so when enclosed with the desiccant, the water content of the oxygen scavenger is the desiccant. It was necessary to wrap the oxygen scavenger with a packaging material with suppressed water vapor permeability so as not to be removed. For this reason, the desiccant and the oxygen scavenger are individually packaged in packaging materials having different water vapor permeability, and are individually charged and sealed in the packaging container.
[0003]
However, in the method in which the desiccant and the oxygen scavenger are individually put into the packaging container, there is a problem that one of them is forgotten to be enclosed during operation. In addition, there have been problems such as a decrease in work efficiency due to the duplication of the enclosed work and an increase in equipment cost due to the duplication of the enclosed equipment.
[0004]
As a solution to this problem, there are a method in which a desiccant and an oxygen scavenger are bonded together with a double-sided tape, and a method in which a desiccant or an oxygen scavenger is pasted on the inner surface of the packaging container when the packaging container is manufactured. Both require new equipment for bonding. In the latter case, when the packaging container is a bag and many of them are connected in a tape shape, it becomes bulky with a desiccant or oxygen scavenger before enclosing the preserved material, making it difficult to automatically enclose the preserved material. become.
[0005]
Therefore, when the desiccant and oxygen scavenger are enclosed in the packaging container, the water vapor transmission rate is limited to 50 to 150 g / m ² 24 hr so that the rate of water removal from the oxygen scavenger by the desiccant does not become a practical problem. The same packaging material is used to manufacture and use a continuous quality-keeping agent in which a desiccant and an oxygen scavenger are alternately connected via a seal portion.
[0006]
[Problems to be solved by the invention]
However, if the unused period until the quality preservation agent is manufactured and enclosed in the packaging container becomes long, the moisture removal from the oxygen scavenger by the desiccant proceeds and the oxygen scavenging performance of the oxygen scavenger decreases. There was a problem.
[0007]
The present invention solves this problem, uses a quality-preserving agent storage tape in which a desiccant and an oxygen scavenger are stored in a continuous form, and deteriorates drying and oxygen scavenging performance even during a long unused period. It aims at providing the quality maintenance method which does not raise | generate.
[0008]
[0009]
[0010]
[Means for Solving the Problems]
The invention of claim 1, wherein a number of drying agent and a number of the oxygen scavenger is a medicine package of the respective atmosphere through the seal portion by the non-breathable plastic film tape-shaped so as not to communicate, the tape longitudinal A quality-preserving agent storage tape having a closed passage communicating with each of the medicine packet parts, which are alternately packaged in the direction and the seal part has a desired air permeability when opened, is obtained by an automatic bag feeder. The absorption of water vapor and oxygen is started by cutting the seal portions corresponding to both ends of one unit length including one desiccant and one oxygen scavenger and opening the closed passage. Thus, the quality-holding agent storage tape for the length of 1 unit is put into a storage packaging container .
[0011]
According to inventions of this, quality maintenance agent, it is possible to maintain the long-term performance of after manufacturing until use, easy to manufacture since it is possible to simplify the structure of the film or the sealing portion is there. In addition, since a number of medicine packages are connected in a tape shape, absorption of water vapor and oxygen is started only by cutting with a sachet automatic charging machine of the seal portion to be put into the packaging container at the time of use. This is preferable because it is not necessary to perform an extra work only for opening.
[0012]
Furthermore, since extra waste such as exfoliation is not generated at the time of use, equipment for recovering the waste is not necessary, which is preferable.
[0013]
The invention according to claim 2 of the present application is such that a large number of desiccants and a large number of oxygen scavengers are connected to the longitudinal direction of the tape through a seal portion by means of a tape-like non-breathable plastic film so that the atmosphere of each medicine package portion does not communicate. the shelf agent storage tapes are Rentsutsumi alternately in the direction ing, the pouch automatic insertion machine, initiates the absorption of water vapor and oxygen by a needle piercing the respective medicine package portion such that the desired air permeability And cutting both ends of one unit length including one desiccant and one oxygen scavenger, and putting the quality-holding agent storage tape for the one unit length into a storage packaging container It is characterized by.
[0014]
According to inventions of this, essentially retaining agent, it is possible to maintain the long-term performance of after manufacturing until use, easy to manufacture because it can be extremely simplified the structure of the film and the seal portion It is. In use, since the needle hole can be opened at the time of cutting by the automatic sachet filling machine for the seal portion to be put into the packaging container, the sealing portion cutting step and the needle hole opening step can be continuously performed. is there. Further, since no extra waste such as exfoliation is generated during use, it is preferable that facilities for recovering it are not required. Furthermore, since the desired air permeability can be obtained by changing the size and density of the needle holes in the medicinal part at the time of use, even if the quality maintaining agent is exactly the same at the time of manufacture, the air flow required at the time of use is required. It can be applied to various preserves with different degrees.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments and reference examples of the present invention will be described below with reference to the drawings.
[0016]
As shown in FIG. 1, the reference example is a non-breathable laminated film a of 12 μm thick vinylidene chloride coated polyester and an easily peelable film (CMPS manufactured by Tosero Co., Ltd.), 15 μm thick perforated nylon and 20 μm thick perforated 30 μm thick porous ethylene by a packaging material in which a laminated film b with an ethylene vinyl acetate copolymer, a 50 g / m 2 water / oil resistant paper c and a 30 μm thick porous ethylene vinyl acetate copolymer film d are laminated in the above order. A vinyl acetate copolymer film d is laminated on the inside, and a desiccant 2 and an oxygen scavenger 3 are encapsulated. Here, since the non-breathable laminated film a and the laminated film b are in close contact but do not adhere, the non-breathable laminated film a can be easily peeled off from the quality retainer 1. When the non-breathable laminated film a is peeled off, the moisture permeability becomes 100 g / m ² 24 hr (at 40 ° C. and 90% humidity), and the oxygen permeability becomes 15 ml / m ² sec atm (at 25 ° C.).
[0017]
The desiccant 2 is 5 g of calcium oxide, and the oxygen scavenger 3 is a mixture of 1.5 g of iron powder, 1.3 g of a sodium chloride saturated aqueous solution-impregnated zeolite, and 0.2 g of activated carbon. Each of the medicine packaging parts of the desiccant 2 and the oxygen scavenger 3 is a quadrangle having a plane size of 35 mm × 40 mm surrounded by a seal part 4 having a width of 10 mm, and the desiccant 2 and the oxygen scavenger 3 are Filled and sealed separately.
[0018]
The non-breathable laminated film “a” is peeled off immediately after production of the quality-preserving agent 1 of this reference example and left in the indoor atmosphere for 3 months after production, and put into separate storage packaging containers. While keeping the packaging container at 25 ° C., the humidity and oxygen concentration therein were measured. Here, the storage packaging container is an oxygen barrier packaging bag in which 15 μm-thick vinylidene chloride-coated nylon and 45 μm-thick polyethylene are laminated, the plane dimensions are 160 mm × 230 mm, the volume is about 400 cc, and 200 g of peanut is stored as the quality-preserving agent. 1 was enclosed.
[0019]
The initial atmosphere in the storage packaging container was 65% humidity and 21% oxygen concentration. After enclosing the quality-preserving agent 1, the humidity is lowered to about 20% after about 4 hours, and the oxygen concentration is stabilized as shown in FIG. After about 24 hours, it became 1% or less and stabilized.
[0020]
As described above, the quality-preserving agent 1 according to the present reference example can maintain its performance for a long time from the time of manufacture to the time of use, and can absorb water vapor and oxygen with almost the original performance at the time of use. .
[0021]
A first embodiment according to the present invention will be described with reference to FIG . A packaging material in which a laminated film e of 20 μm-thick vinylidene chloride-coated stretched polypropylene and 20 μm-thick unstretched polypropylene, 42 g / m 2 thick water-resistant paper f, and 30 μm-thick perforated ethylene vinyl acetate copolymer film h are laminated in the above order. Is bonded with the 30 μm-thick perforated ethylene vinyl acetate copolymer film h as the inside, and a large number of desiccants 7 and a large number of oxygen scavengers 8 are alternately enclosed in a tape shape in the longitudinal direction to maintain the quality. A storage tape is constructed. The desiccant 7 and the oxygen scavenger 8 are the same as those of the above reference example in both type and unit weight. One unit length of the quality-preserving agent storage tape 6 is made up of one desiccant 7 and one oxygen scavenger 8 so that a sachet is automatically introduced as disclosed in Japanese Patent Publication No. 59-18255. After being cut by the broken line portion 12 of the seal portion 9 immediately before use, the machine is put into a storage packaging container.
[0022]
As shown in FIG. 3, closed passages 10 and 11 communicating with the respective medicine packs are formed in the seal part 9 between the medicine packs of the desiccant 7 and the oxygen scavenger 8. When the broken line part 12 is cut, the moisture permeability becomes 70 g / m ² 24 hr (at 40 ° C. and 90% humidity), and the oxygen permeability becomes 5.8 ml / m ² sec atm (at 25 ° C.). The closed passage of the seal part is refracted so that the medicine in each medicine package part does not leak to the outside due to the cutting of the broken line part 12. The structure of the seal portion 9 is easily formed by an embossed hot roll when the desiccant 7 and the oxygen scavenger 8 are bundled together.
[0023]
The one immediately after manufacture of the quality-preserving agent storage tape of this embodiment and the one that has been left in the indoor atmosphere for 3 months after manufacture are cut by the broken line portion 12 of the seal portion 9 and one desiccant 7 and one 1 unit length of quality retention agent storage tape 6 composed of oxygen scavenger 8 is put into separate storage packaging containers, and the humidity and oxygen concentration in these storage packaging containers are kept at 25 ° C. It was measured. Here, the storage packaging container is an oxygen barrier packaging bag in which a 23 μm-thick vinylidene chloride-coated stretched polypropylene and a 40 μm-thick unstretched polypropylene are laminated. The plane dimensions are 200 mm × 260 mm and the volume is about 300 cc. Ten sheets were enclosed together with the quality-preserving agent storage tape 6 for the unit length .
[0024]
The initial atmosphere in the storage packaging container was 70% humidity and 21% oxygen concentration. After enclosing the quality-holding agent storage tape 6 for 1 unit length, together with the one immediately after production and the one left in the indoor atmosphere for 3 months after production, the humidity is lowered to 20% and stabilized after about 24 hours, As shown in FIG. 4, the oxygen concentration stabilized at 1% or less after about 100 hours.
[0025]
As described above, the quality-preserving agent storage tape according to the present embodiment can maintain its quality maintenance performance for a long period from the time of manufacture to the time of use, and absorbs water vapor and oxygen with almost the original performance when used. be able to. Moreover, since the structure of a film and the seal part 9 can be simplified, manufacture is easy. Furthermore, since the absorption of water vapor and oxygen is started only by cutting of the seal portion 9 to be put into the packaging container by the automatic sachet filling machine at the time of use, the extra work only for opening the closed passages 10 and 11 is performed. No extra waste such as exfoliation is generated.
[0026]
The second embodiment according to the present invention will be described with reference to FIG. 20 μm-thick polyethylene film k by a packaging material in which 12 μm-thick vinylidene chloride-coated polyethylene terephthalate and 20 μm-thick polyethylene non-breathable laminated film i, 45 g / m ² Japanese paper j, and 20 μm-thick polyethylene film k are laminated in the above order. Are attached together, and a number of desiccants 15 and a number of oxygen scavengers 16 are alternately wrapped in a tape shape in the longitudinal direction to form a quality-preserving agent storage tape . The desiccant 15 and the oxygen scavenger 16 are the same in both type and unit weight as those in the reference example . As shown in FIG. 6, an automatic bag filling machine with a needle roller 22 such that the quality retention agent storage tape 14 for one unit length is composed of one desiccant 15 and one oxygen scavenger 16. By A, a needle hole is opened in each medicine pack part immediately before use, cut by the seal part 17 and then put into a storage packaging container.
[0027]
Pouch automatic insertion machine A with the needle roller 22, as shown in FIG. 6, the quality retention agent storage tape, feed a predetermined pitch by a pair of feed rollers 22, 23 driven by a pulse motor 21, phototube device 24 A registration mark on the quality-preserving agent storage tape is detected, and the seal portion 17 is cut by the cutting device 25. Here, one of the pair of feed rollers 22 and 23 is a needle roller 22 in which a large number of punching needles are provided in a predetermined size and predetermined arrangement on the outer peripheral surface of the roller. Are made at the same time.
[0028]
The quality retention agent storage tape of this embodiment immediately after production and the one left in the indoor atmosphere for 3 months after production are about 15 mm in diameter at 5 mm square intervals with a small needle in the desiccant 15 part and the oxygen scavenger 16 part. A 0.2 mm hole is opened, the moisture permeability is 100 g / m ² 24 hr (at 40 ° C. and 90% humidity) and the oxygen permeability is 12 ml / m ² sec atm (at 25 ° C.). 1 unit length of quality retention agent storage tape 14 consisting of one desiccant 15 and one oxygen scavenger 16 is put into separate storage packaging containers, and these storage packaging containers are kept at 25 ° C. The humidity and oxygen concentration therein were measured. Here, the storage packaging container is an oxygen barrier packaging bag in which a 23 μm-thick vinylidene chloride-coated stretched polypropylene and a 40 μm-thick unstretched polypropylene are laminated. The plane dimensions are 200 mm × 260 mm and the volume is about 300 cc. Ten sheets were enclosed together with the quality-preserving agent storage tape 14 for the unit length .
[0029]
The initial atmosphere in the storage packaging container was 70% humidity and 21% oxygen concentration. After enclosing the quality-preserving agent, the humidity decreases to 20% after about 12 hours and stabilizes, and the oxygen concentration becomes less than 1% after about 48 hours, along with those left in the indoor atmosphere for 3 months after manufacture. Stabilized.
[0030]
As described above, the quality-preserving agent storage tape according to the present embodiment can maintain its quality maintenance performance for a long period from the time of manufacture to the time of use, and absorbs water vapor and oxygen with almost the original performance when used. be able to. Further, since the configuration of the film and the seal portion 17 can be extremely simplified, the manufacture is easy. Furthermore, at the time of use, a needle hole can be opened at the same time when the seal portion 17 for cutting into the packaging container is cut by the automatic bag feeder A, so that absorption of water vapor and oxygen can be started. Therefore, there is no need to perform extra work only for the purpose, and extra waste such as exfoliation is not generated. In addition, the desired air permeability can be achieved by changing the size and density of the needle hole in the medicinal unit during use, so even the same quality-preserving agent storage tape is required at the time of use. It can be applied to various preserved products having different air permeability.
[0031]
【The invention's effect】
According to the first and second aspects of the present invention, both the desiccant and the oxygen scavenger can maintain their performance for a long period of time from production to use. At the time of use, water vapor and oxygen can be absorbed with the original performance.
[0032]
According to the invention of claim 1, wherein, it is possible to simplify the construction of the full Irumu and the seal portion is easy to manufacture, cost can be reduced. Further, since the time of use to initiate the absorption of water vapor and oxygen only by cutting with pouch automatic insertion machine of the seal portion do to put into the packaging container, it is necessary to carry out extra work only for opening the閉通path It is preferable. Furthermore, since no extra waste such as exfoliation is generated during use, facilities for recovering it are not necessary .
[0033]
According to the invention of claim 2, wherein, it is possible to extremely simplify the structure of a full Irumu and the seal portion is easy to manufacture, cost can be reduced. In use, since the needle hole can be opened at the time of cutting by the automatic sachet filling machine for the seal portion to be put into the packaging container, the sealing portion cutting step and the needle hole opening step can be continuously performed. is there. In addition, since no extra waste such as exfoliation is generated during use, facilities for recovering it are not necessary . Furthermore, since the desired air permeability can be obtained by changing the size and density of the needle holes in the medicinal unit during use, even the same quality-preserving agent storage tape is required during use even during manufacture. It can be applied to various preserves having different air permeability.
[Brief description of the drawings]
1A and 1B are diagrams showing a reference example, in which FIG. 1A is a plan view, and FIG. 1B is an enlarged view of a part of an XX cross section;
FIG. 2 is a view showing a change over time in oxygen concentration in a storage packaging container in a reference example .
3A and 3B are diagrams showing a first embodiment of the present invention, in which FIG. 3A is a plan view, and FIG. 3B is an enlarged view of a part of a YY cross section.
FIG. 4 is a diagram showing a change over time in oxygen concentration in a storage packaging container according to the first embodiment of the present invention.
5A and 5B are views showing a second embodiment of the present invention, in which FIG. 5A is a plan view and FIG. 5B is an enlarged view of a part of a ZZ cross section.
FIG. 6 is a schematic view showing a sachet automatic filling machine according to a second embodiment of the present invention.
[Explanation of symbols]
2 Desiccant 3 Oxygen absorber 4 Sealing part a Non-breathable plastic film b, c, d Breathable film

Claims (2)

A number of desiccants and a number of oxygen scavengers are alternately wrapped in the longitudinal direction of the tape through the seal portion with a tape-like non-breathable plastic film so that the atmosphere of each medicine wrapping portion does not communicate, The seal part is provided with one desiccant and one desiccant using a sachet automatic charging machine, with a quality retention agent storage tape provided with a closed passage communicating with each of the medicine package parts so that a desired air permeability is obtained when opened . By cutting the seal portions corresponding to both ends of one unit length including an oxygen scavenger and opening the closed passage, absorption of water vapor and oxygen is started , A quality maintaining method, wherein the quality maintaining agent storage tape is put into a storage packaging container. Numerous desiccant and a number of the oxygen scavenger is a medicine package of the respective atmosphere through the seal portion by the non-breathable plastic film tape-shaped so as not to communicate, that Do is Rentsutsumi alternately in the longitudinal direction of the tape The quality-preserving agent storage tape starts absorption of water vapor and oxygen by opening a needle hole in each medicine packet part so as to achieve a desired air permeability by an automatic bag feeder , and one desiccant And a unit of oxygen scavenger are cut at both ends, and the quality-holding agent storage tape for the unit length is put into a storage packaging container.

Images