CA1268738A - Continuous package train of deoxidizing agent and apparatus for severing packages - Google Patents
Continuous package train of deoxidizing agent and apparatus for severing packagesInfo
- Publication number
- CA1268738A CA1268738A CA000524762A CA524762A CA1268738A CA 1268738 A CA1268738 A CA 1268738A CA 000524762 A CA000524762 A CA 000524762A CA 524762 A CA524762 A CA 524762A CA 1268738 A CA1268738 A CA 1268738A
- Authority
- CA
- Canada
- Prior art keywords
- package
- packages
- train
- package train
- deoxidizing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
- B26D5/26—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed wherein control means on the work feed means renders the cutting member operative
- B26D5/28—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed wherein control means on the work feed means renders the cutting member operative the control means being responsive to presence or absence of work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/40—Packages formed by enclosing successive articles, or increments of material, in webs, e.g. folded or tubular webs, or by subdividing tubes filled with liquid, semi-liquid, or plastic materials
- B65D75/42—Chains of interconnected packages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
- B65D81/268—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being enclosed in a small pack, e.g. bag, included in the package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/67—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material
- B65D85/675—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in helical form
- B65D85/676—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in helical form on cores
Abstract
ABSTRACT OF THE DISCLOSURE
A belt-like package train having at least a surface layer made of a plastic includes a plurality of packages connected in series in one direction, each package being charged with a deoxidizing agent such as a metal powder, e.g., iron powder. The package train is coiled on a core made of a thick paper material having a small air-permeability. The coiled package train is disposed on the inlet side of an automatic severing apparatus and is successively fed into the apparatus so that the packages are successively severed from the outermost layer and then from the inner layers of the coiled package train.
A belt-like package train having at least a surface layer made of a plastic includes a plurality of packages connected in series in one direction, each package being charged with a deoxidizing agent such as a metal powder, e.g., iron powder. The package train is coiled on a core made of a thick paper material having a small air-permeability. The coiled package train is disposed on the inlet side of an automatic severing apparatus and is successively fed into the apparatus so that the packages are successively severed from the outermost layer and then from the inner layers of the coiled package train.
Description
~2687~13 CONTINUOUS PACKAGE TRAIN OF DEOXIDIZING AGENT AND APPARATUS
FOR SEVERING PACKAGES
BACKGROUND OF THE INVENTION
1. Field of the Invention:
The present invention relates to a continuous package train having a plurality of packages connected in series at least in one direction in a belt-like form, each package containing a deoxidizing agent. The invention also is concerned with an apparatus for severing the packages of deoxidizing agent from such a train of packages.
FOR SEVERING PACKAGES
BACKGROUND OF THE INVENTION
1. Field of the Invention:
The present invention relates to a continuous package train having a plurality of packages connected in series at least in one direction in a belt-like form, each package containing a deoxidizing agent. The invention also is concerned with an apparatus for severing the packages of deoxidizing agent from such a train of packages.
2. Description of the Related Art:
In order to prevent goods such as foodstuffs and medical drugs from being deteriorated during long storage, it has been proposed to put a package of an agent capable of absorbing oxygen (referred to as deoxidizing agent, hereinunder) in a hermetic foodstuffs or drug container such as a sack or a can having walls of a high gas barrier effect. This measure has became an established technique particularly in the field of preservation of foodstuffs, and is finding spreading use in various fields which require elimination of all kinds of unfavorable effect which may be caused by the presence of oxygen.
Systems are also proposed for automatically producing goods such as foodstuffs and medical drugs sealed in hermetic containers together with packages of a deoxidizing 1~687~
agent. For the purpose of achieving a high production efficiency, such production systems usually employ a package train of the deoxidizing agent in which a plurality of packages each containing the deoxidizing agent are connected in series in a form like a belt. The packages are severed one by one fro~ the package train by an automatic severing apparatus and independent packages thus obtained are charged into successive containers of the goods.
Fig. 2 schematically shows the manner in which the packages are successively severed in a process for producing sealed goods. A package train generally denoted by 10 has a plurality of packages containing an deoxidizing agent and connected in series through sealed connecting webs. An automatic severing apparatus, which is generally designated by a reference numeral 12, has thickness sensors 14 which measure the thickness of the package train so as to distinguish the thin sealed connecting webs from the packages which are charged with the deoxidizing agent and, hence, are large in thickness. The apparatus 12 also has a cutter 16 which is operated in synchronism with the passage of the package train in accordance with the output from the thickness sensors 14 so as to cut the package train at successive sealed connecting webs, whereby the packages are severed one by one. The package train is folded at its connecting webs such that the successive packages are lX~i~3738 stacked on another, and is stored in a case 1~ with its trailing end placed on the bottom of the container such as to be continuously fed into the severing apparatus 12.
This known system, however, tends to suffer from a disadvantage in that the fold of the sealed connecting web cannot be perfectly straightened before it reaches the thickness sensors 14 of the automatic severing apparatus, with the result that the thickness sensor fails to detect the sealed connecting web so as to miss the timing for actuating the cutter 16. This problem is serious particularly in the case where the package has a layer of plastic film coating on the surface thereof. The same problem is encountered also when the detection of the sealed connecting web is effected by means of a photoelectric tube which can detect a specific mark on the package train. The use of a layer of plastic film coating on the package is disadvantageous also in that the package train cannot easily be folded at the sealed connecting webs duè to a large resiliency exhibited by the plastic film, which makes it difficult to store a long package train in folded state.
Usually, a package of deoxidizing agent exhibits a tendency to absorb oxygen when left in the air, so that it is preferably kept away from the air unless it is not going to be charged in a container of goods such as foodstuffs.
The known package train, when stored in a folded state, 7~
tends to allow the ambient air to flow into the spaces between adjacent packages stacked in layers, so that the packages undesirably absorb oxygen, with the result that the oxygen absorbability is impaired before the packages are severed by the severing apparatus.
The stored packages which have absorbed oxygen generate heat which is accumulated due to high density of stack of successive packages and in turn vaporizes the moisture inherently contained in the deoxidation agent so as to accelerate the impairment of its oxygen absorbability.
For these reasons, the length of the package train 10 which has to be fed to a severing apparatus is undesirably limited.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a package train and a package severing apparatus which can overcome the above-described problems of the prior art.
More specifically, the present invention is aimed at providing a package train of a deoxidation agent and a package severing apparatus, capable of ensuring a high degree of precision of thickness measurement and minimizing any reduction in the oxygen absorbability of the packages in the stored state, thereby enabling the package train to have an increased length.
1~68738 To this end, according to one aspect of the present invention, there is provided a continuous package train having a plurality of packages connected in series and charged with a deoxidizing agent, comprising: a belt-like body of package train having a plurality of the packages connected in series at least in one direction; and a core on which the body of package train is coiled.
According to another aspect of the present invention, there is provided an apparatus for severing successive packages containing a deoxidizing agent from a continuous package train having the packages connected in series at least in one direction, so as to form independent packages successively, the apparatus comprising: cutting means for cutting the package train at connecting webs through which adjacent packages are connected; and package-train supporting means disposed on the inlet side of the cutting means and adapted to rotatably hold a core on which the package train is coiled.
According to the invention, since the package train is rolled on a core, no fold is formed in the packages nor in the sealed connecting webs, so that a high degree of precision is obtained in the measurement of the thickness or photoelectric detection of marks. This in turn enables the package severing apparatus to cut the package train precisely at the connecting webs, thereby obviating the 1~87~8 problems of the prior art.
In addition, since the package train is coiled in layers, only the outermost layer is exposed to the ambient air and the air cannot come into the space between adjacent layers, so that deterioration in the oxygen absorbability is advantageously avoided. The reduction in the oxygen absorbability is small even in the packages constituting the outermost layer of the coil,because only one side of the outermost layer is exposed to the ambient air.
The above and other objects, features and advantages of the present invention will become clear from the following description of the preferred embodiment when the same is read in conjunction with the accompanying drawings.
BRIE DESCRIPTION OF THE DRAWINGS
Fig. 1 is a front elevational view of a package severing apparatus embodying the present invention for severing successive packages of deoxidizing agent from a continuous package train;
Fig. 2 is a front elevational view of a conventional package severing apparatus;
Fig. 3 is a perspective view of a continuous package train;
Fig. 4 is a perspective view of a package train coiled on a core; and Fig. 5 is a perspective view of a wrapped package ~X~73l3 train.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Fig. 3 which schernatically shows a package train 10, a plurality of package units 20 are connected in series so as to form a train. More specifically, each package unit 20 has a sack portion 22 charged with a deoxidizing agent and a sealed connecting web 24. Thus, the sack portions 22 and the sealed connecting webs 24 are arranged alternatingly in the longitudinal direction of the package train 10. It will be understood that each sack portion 22 in this embodiment is sealed at its three sides after charged with the deoxidizing agent and the remaining side is constituted by an overturned edge of the package material.
Examples of the deoxidizing agent with which the package 22 is charged are: sulfite, hydrogensulfite, dithionite, ferrous salt, hydroquinone, catechol. resorcin, pyrogallol, gallic acid, rongalit, ascorbic acid and/or its salt, isoascorbic acid and/or its salt, sorbose, glucose, lignin, dibuthylhydroxytoluene, and buthylhydroxyanisole.
It is also possible to use a deoxidizing agent containing metallic powder such as iron powder or a deoxidizing agent of oxygen-gas generating type or carbon dioxide absorption type. Among these deoxidizing agents, ascorbic acid and/or its salt and deoxidizing agent containing metal powder such ~8738 as iron powder are used most suitably.
Various types of packaging material are selectively used in accordance with the uses. For instance, a laminated sheet having a paper layer and a porous polyethylene film or a laminated sheet having a perforated plastic film, paper layer and a porous polyethylene film can be used suitably as the packaging material.
The package train in accordance with the present invention is stored in coiled state on a core such as a bobbin. This essentially requires that the packaging material has a high level of resistance to tension so that it may not be broken or torn when coiled. In addition, it is preferred that the packaging material is of the type which enables printing to be conducted on the reverse side thereof and that packaging material exhibits superior properties from the view point of safety and sanitation. To cope with such requirements, the packaging material preferably has a plastic film such as of polyethyleneterephthalate, polyamide, polypropylene, cellophane, and so forth.
The package train 10 thus formed is coiled on the core 28 of a bobbin 26 as shown in Fig. 4, and the coiled package train 10 is sealed in a sack 30 made of a film having a high level of gas barrier effect, before it is commercially distributed.
7~8 When the packages of the package train are put into containers of goods to be deoxidized, e.g., foodstuffs, ~he package train lO coiled on the bobbin 26 is taken out of the sack 30 and the bobbin is mounted rotatably on a bracket 32 provided on the inlet side of the automatic severing apparatus 12 as shown in Fig. 1, so that the leading end of the package train 10 is fed into the automatic severing apparatus 12.
Since the package train lO according to the invention is stored in the form of a coil on the bobbin 26, fold line is formed nowhere in the package train 10, so that the thickness sensors 14 of the automatic severing apparatus 12 can correctly detect the position of the connecting webs 24.
The deterioration of the detecting precision is avoided also in the case where a photoelectric mark sensor is used in place of the thickness sensors 14.
The package train 10 is subjected to the ambient air after mounted on the automatic severing apparatus 12.
However, since the package train lO is coiled in layers, only the outermost layer is contacted by air, so that no substantial reduction in the oxygen absorption capacity takes place in other layers. The reduction in the oxygen absorption capacity is small also in the outermost layer of the coil, because this layer is contacted by the ambient air only at its one side. Thus, the coiling of the package 12~87~
train 10 on the bobbin 26 is preferably conducted in such a manner as to expel air from the spaces between adjacent layers and to prevent air from coming into such spaces, while avoiding any unfavorable physical effect on the package train 10. It will be seen that the conventional package train 10 shown in Fig. 2 cannot effectively prevent air from coming into the spaces between adjacent layers of the stack.
In the package train of the present invention, the core 28 of the bobbin 26 is preferably made of a material which exhibits only a small permeability to air, because a material having large air permeability will undesirably cause the packages on the core 28 to absorb oxygen through the material of the core 28. Examples of materials suitable for use as the material of the core 28 are a thick paper sheet or a plastic such as polyethylene, polypropylene or the like. More specifically, a material having oxygen permeability on the order of 100,000 cc/m2 24 Hr-atm (under the atmospheric pressure for the duration of 24 hours) or less is preferably used as the material of the core 28.
If the circumferential length of the coiled package train 10 is too small, each package 20 tends to exhibit buckling tendency even after the package train is uncoiled.
Such a buckling tendency is liable to cause troubles such as cutting failure. Therefore, the core 28 of the bobbin 26 ~687~8 should have a circumferential length which is preferably at least twice, more preferably three times, as that of the length of each package 20 as measured in the coiling direction.
The severing apparatus 12 may have a constructlon which is substantially the same as that of the known apparatus shown in Fig. 2. Namely, the severing apparatus can have thickness sensors 14, a cutter 16 which operates in accordance with the result of thickness measurement conducted by the thickness sensors 14, guide rollers 34, 36, 38, a vibrator 40 and feed rollers 42, 44.
According to the present invention, the continuous package train 10 is coiled on a bobbin, so that no substantial reduction in the oxygen absorption capacity, which may otherwise be caused due to contact with the ambient air, is avoided regardless of whether the deoxidizing agent is of additive reaction type which exhibits oxygen absorbability with external supply of moisture or of self-reaction type which absorbs oxygen when merely placed in the air. This provision also enables the cutter 16 of the automatic severing apparatus to cut the package train 10 precisely at the connecting webs 24.
Some of known deoxidizing agent used hitherto exhibit large reduction rate of oxygen absorption capacity which is 5% or higher when left in the air of 25C and 50-60~
37~
humidity. Package of such deoxidizing agents having large reduction rate of oxygen absorption capacity can contain only a small number of packages, so that it is materially impossible to use an automatic severing apparatus. In contrast, the package train in accordance with the present invention can have a large number of packages, so that it can be conveniently and efficiently handled by an automatic severing apparatus. The possibility of production of package trains having a large number of packages is advantageous from all points of view.
(Experimental Data~
An experimental data of the package train in accordance with the present invention will be described hereinunder.
A package train was prepared by using, as the packaging material, a porous polyethyleneterephthalate film of 12,u and 100 mm wide, such as to have a series of packages each being 50 mm long and SO mm wide and charged with 3.0 g of a deoxidizing agent containing iron powder. The thus formed package train was coiled in good order on a collared bobbin having a core made of a thick paper sheet and having an inside diameter of 3 inches and a thickness of 7 mm. The package train had 2,000 pieces of deoxidizing agent packages connected in series. Immediately after the preparation, the package train was placed in a sack made of drawn nylon/polyethylene coated with vinylidene chloride. The ~Z~8738 sack was deaerated and then sealed.
As a comparison example, a similar deoxidizing agent package train of known folded type was prepared. This package train of the comparison example had 2,000 pieces of packages which were folded at every 8 packages, and was sealed in a sack of the same material as that used for the package train of the invention.
These two types of package train were taken out of the sacks and were subjected to a test severing operation which was conducted with an automatic severing apparatus (Model NR4 produced by Asahi Kinzoku K.K.). The test operation was conducted at a severing rate of 20 packages per minute. The oxygen absorption capacity was measured on the first package, the 1,000 th package and the 2,000 th package for each type of package train. The measurement of the oxygen absorption capacity was conducted by sealing the sample packages in sacks of the same material as above together with 3 litres of air, preserving the sample packages in the sealed state at 25 C for seven days, and then measuring the oxygen concentration as the oxygen absorption.
The results of the test are shown in Tables 1 and 2.
Table 1 _.. , Oxygen absorption (7 days after: ml) .
1st package 1,000th package 2,000th package _ Packages of invention 275 270 260 Comparison Example 241 201 125 Table 2 \ Number of times of severing failure \l Packages of inventionl 0 Comparison example ¦ 3 , I
As will be seen from Table 2, no severing failure was observed when the package train of the invention was handled by the automatic severing apparatus, whereas lnferior severing was experienced with the package train of the comparison example, due to the presence of folds in the package train. In fact, severing failure was observed three times during the severing operation. It will be understood also that, while the package train in accordance with the present invention showed no substantial reduction in the oxygen absorption capacity, a significant reduction was 12~j8~7~8 observed with the package train of the comparison example, and the 2,000 th package of the comparison example was materially unusable.
As has been described, according to the invention, it is possible to obtain a train of package having a large number of packages containing a deoxidizing agent, without any risk of reduction in the oxygen absorption capacity which inevitably takes place in the conventional package train before fed to an automatic severing apparatus. In addition, the package train of the present invention enables the automatic severing apparatus to cut the package train precisely at the connecting webs at which adjacent packages are connected, so that products such as foodstuffs sealed together with a deoxidizing agent package can be produced at a high yield.
Although the invention has been described through its preferred form, it is to be noted that the described embodiment is only illustrative and various changes and modifications may be imparted thereto without departing from the scope of the invention which is limited solely by the appended claims.
In order to prevent goods such as foodstuffs and medical drugs from being deteriorated during long storage, it has been proposed to put a package of an agent capable of absorbing oxygen (referred to as deoxidizing agent, hereinunder) in a hermetic foodstuffs or drug container such as a sack or a can having walls of a high gas barrier effect. This measure has became an established technique particularly in the field of preservation of foodstuffs, and is finding spreading use in various fields which require elimination of all kinds of unfavorable effect which may be caused by the presence of oxygen.
Systems are also proposed for automatically producing goods such as foodstuffs and medical drugs sealed in hermetic containers together with packages of a deoxidizing 1~687~
agent. For the purpose of achieving a high production efficiency, such production systems usually employ a package train of the deoxidizing agent in which a plurality of packages each containing the deoxidizing agent are connected in series in a form like a belt. The packages are severed one by one fro~ the package train by an automatic severing apparatus and independent packages thus obtained are charged into successive containers of the goods.
Fig. 2 schematically shows the manner in which the packages are successively severed in a process for producing sealed goods. A package train generally denoted by 10 has a plurality of packages containing an deoxidizing agent and connected in series through sealed connecting webs. An automatic severing apparatus, which is generally designated by a reference numeral 12, has thickness sensors 14 which measure the thickness of the package train so as to distinguish the thin sealed connecting webs from the packages which are charged with the deoxidizing agent and, hence, are large in thickness. The apparatus 12 also has a cutter 16 which is operated in synchronism with the passage of the package train in accordance with the output from the thickness sensors 14 so as to cut the package train at successive sealed connecting webs, whereby the packages are severed one by one. The package train is folded at its connecting webs such that the successive packages are lX~i~3738 stacked on another, and is stored in a case 1~ with its trailing end placed on the bottom of the container such as to be continuously fed into the severing apparatus 12.
This known system, however, tends to suffer from a disadvantage in that the fold of the sealed connecting web cannot be perfectly straightened before it reaches the thickness sensors 14 of the automatic severing apparatus, with the result that the thickness sensor fails to detect the sealed connecting web so as to miss the timing for actuating the cutter 16. This problem is serious particularly in the case where the package has a layer of plastic film coating on the surface thereof. The same problem is encountered also when the detection of the sealed connecting web is effected by means of a photoelectric tube which can detect a specific mark on the package train. The use of a layer of plastic film coating on the package is disadvantageous also in that the package train cannot easily be folded at the sealed connecting webs duè to a large resiliency exhibited by the plastic film, which makes it difficult to store a long package train in folded state.
Usually, a package of deoxidizing agent exhibits a tendency to absorb oxygen when left in the air, so that it is preferably kept away from the air unless it is not going to be charged in a container of goods such as foodstuffs.
The known package train, when stored in a folded state, 7~
tends to allow the ambient air to flow into the spaces between adjacent packages stacked in layers, so that the packages undesirably absorb oxygen, with the result that the oxygen absorbability is impaired before the packages are severed by the severing apparatus.
The stored packages which have absorbed oxygen generate heat which is accumulated due to high density of stack of successive packages and in turn vaporizes the moisture inherently contained in the deoxidation agent so as to accelerate the impairment of its oxygen absorbability.
For these reasons, the length of the package train 10 which has to be fed to a severing apparatus is undesirably limited.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a package train and a package severing apparatus which can overcome the above-described problems of the prior art.
More specifically, the present invention is aimed at providing a package train of a deoxidation agent and a package severing apparatus, capable of ensuring a high degree of precision of thickness measurement and minimizing any reduction in the oxygen absorbability of the packages in the stored state, thereby enabling the package train to have an increased length.
1~68738 To this end, according to one aspect of the present invention, there is provided a continuous package train having a plurality of packages connected in series and charged with a deoxidizing agent, comprising: a belt-like body of package train having a plurality of the packages connected in series at least in one direction; and a core on which the body of package train is coiled.
According to another aspect of the present invention, there is provided an apparatus for severing successive packages containing a deoxidizing agent from a continuous package train having the packages connected in series at least in one direction, so as to form independent packages successively, the apparatus comprising: cutting means for cutting the package train at connecting webs through which adjacent packages are connected; and package-train supporting means disposed on the inlet side of the cutting means and adapted to rotatably hold a core on which the package train is coiled.
According to the invention, since the package train is rolled on a core, no fold is formed in the packages nor in the sealed connecting webs, so that a high degree of precision is obtained in the measurement of the thickness or photoelectric detection of marks. This in turn enables the package severing apparatus to cut the package train precisely at the connecting webs, thereby obviating the 1~87~8 problems of the prior art.
In addition, since the package train is coiled in layers, only the outermost layer is exposed to the ambient air and the air cannot come into the space between adjacent layers, so that deterioration in the oxygen absorbability is advantageously avoided. The reduction in the oxygen absorbability is small even in the packages constituting the outermost layer of the coil,because only one side of the outermost layer is exposed to the ambient air.
The above and other objects, features and advantages of the present invention will become clear from the following description of the preferred embodiment when the same is read in conjunction with the accompanying drawings.
BRIE DESCRIPTION OF THE DRAWINGS
Fig. 1 is a front elevational view of a package severing apparatus embodying the present invention for severing successive packages of deoxidizing agent from a continuous package train;
Fig. 2 is a front elevational view of a conventional package severing apparatus;
Fig. 3 is a perspective view of a continuous package train;
Fig. 4 is a perspective view of a package train coiled on a core; and Fig. 5 is a perspective view of a wrapped package ~X~73l3 train.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Fig. 3 which schernatically shows a package train 10, a plurality of package units 20 are connected in series so as to form a train. More specifically, each package unit 20 has a sack portion 22 charged with a deoxidizing agent and a sealed connecting web 24. Thus, the sack portions 22 and the sealed connecting webs 24 are arranged alternatingly in the longitudinal direction of the package train 10. It will be understood that each sack portion 22 in this embodiment is sealed at its three sides after charged with the deoxidizing agent and the remaining side is constituted by an overturned edge of the package material.
Examples of the deoxidizing agent with which the package 22 is charged are: sulfite, hydrogensulfite, dithionite, ferrous salt, hydroquinone, catechol. resorcin, pyrogallol, gallic acid, rongalit, ascorbic acid and/or its salt, isoascorbic acid and/or its salt, sorbose, glucose, lignin, dibuthylhydroxytoluene, and buthylhydroxyanisole.
It is also possible to use a deoxidizing agent containing metallic powder such as iron powder or a deoxidizing agent of oxygen-gas generating type or carbon dioxide absorption type. Among these deoxidizing agents, ascorbic acid and/or its salt and deoxidizing agent containing metal powder such ~8738 as iron powder are used most suitably.
Various types of packaging material are selectively used in accordance with the uses. For instance, a laminated sheet having a paper layer and a porous polyethylene film or a laminated sheet having a perforated plastic film, paper layer and a porous polyethylene film can be used suitably as the packaging material.
The package train in accordance with the present invention is stored in coiled state on a core such as a bobbin. This essentially requires that the packaging material has a high level of resistance to tension so that it may not be broken or torn when coiled. In addition, it is preferred that the packaging material is of the type which enables printing to be conducted on the reverse side thereof and that packaging material exhibits superior properties from the view point of safety and sanitation. To cope with such requirements, the packaging material preferably has a plastic film such as of polyethyleneterephthalate, polyamide, polypropylene, cellophane, and so forth.
The package train 10 thus formed is coiled on the core 28 of a bobbin 26 as shown in Fig. 4, and the coiled package train 10 is sealed in a sack 30 made of a film having a high level of gas barrier effect, before it is commercially distributed.
7~8 When the packages of the package train are put into containers of goods to be deoxidized, e.g., foodstuffs, ~he package train lO coiled on the bobbin 26 is taken out of the sack 30 and the bobbin is mounted rotatably on a bracket 32 provided on the inlet side of the automatic severing apparatus 12 as shown in Fig. 1, so that the leading end of the package train 10 is fed into the automatic severing apparatus 12.
Since the package train lO according to the invention is stored in the form of a coil on the bobbin 26, fold line is formed nowhere in the package train 10, so that the thickness sensors 14 of the automatic severing apparatus 12 can correctly detect the position of the connecting webs 24.
The deterioration of the detecting precision is avoided also in the case where a photoelectric mark sensor is used in place of the thickness sensors 14.
The package train 10 is subjected to the ambient air after mounted on the automatic severing apparatus 12.
However, since the package train lO is coiled in layers, only the outermost layer is contacted by air, so that no substantial reduction in the oxygen absorption capacity takes place in other layers. The reduction in the oxygen absorption capacity is small also in the outermost layer of the coil, because this layer is contacted by the ambient air only at its one side. Thus, the coiling of the package 12~87~
train 10 on the bobbin 26 is preferably conducted in such a manner as to expel air from the spaces between adjacent layers and to prevent air from coming into such spaces, while avoiding any unfavorable physical effect on the package train 10. It will be seen that the conventional package train 10 shown in Fig. 2 cannot effectively prevent air from coming into the spaces between adjacent layers of the stack.
In the package train of the present invention, the core 28 of the bobbin 26 is preferably made of a material which exhibits only a small permeability to air, because a material having large air permeability will undesirably cause the packages on the core 28 to absorb oxygen through the material of the core 28. Examples of materials suitable for use as the material of the core 28 are a thick paper sheet or a plastic such as polyethylene, polypropylene or the like. More specifically, a material having oxygen permeability on the order of 100,000 cc/m2 24 Hr-atm (under the atmospheric pressure for the duration of 24 hours) or less is preferably used as the material of the core 28.
If the circumferential length of the coiled package train 10 is too small, each package 20 tends to exhibit buckling tendency even after the package train is uncoiled.
Such a buckling tendency is liable to cause troubles such as cutting failure. Therefore, the core 28 of the bobbin 26 ~687~8 should have a circumferential length which is preferably at least twice, more preferably three times, as that of the length of each package 20 as measured in the coiling direction.
The severing apparatus 12 may have a constructlon which is substantially the same as that of the known apparatus shown in Fig. 2. Namely, the severing apparatus can have thickness sensors 14, a cutter 16 which operates in accordance with the result of thickness measurement conducted by the thickness sensors 14, guide rollers 34, 36, 38, a vibrator 40 and feed rollers 42, 44.
According to the present invention, the continuous package train 10 is coiled on a bobbin, so that no substantial reduction in the oxygen absorption capacity, which may otherwise be caused due to contact with the ambient air, is avoided regardless of whether the deoxidizing agent is of additive reaction type which exhibits oxygen absorbability with external supply of moisture or of self-reaction type which absorbs oxygen when merely placed in the air. This provision also enables the cutter 16 of the automatic severing apparatus to cut the package train 10 precisely at the connecting webs 24.
Some of known deoxidizing agent used hitherto exhibit large reduction rate of oxygen absorption capacity which is 5% or higher when left in the air of 25C and 50-60~
37~
humidity. Package of such deoxidizing agents having large reduction rate of oxygen absorption capacity can contain only a small number of packages, so that it is materially impossible to use an automatic severing apparatus. In contrast, the package train in accordance with the present invention can have a large number of packages, so that it can be conveniently and efficiently handled by an automatic severing apparatus. The possibility of production of package trains having a large number of packages is advantageous from all points of view.
(Experimental Data~
An experimental data of the package train in accordance with the present invention will be described hereinunder.
A package train was prepared by using, as the packaging material, a porous polyethyleneterephthalate film of 12,u and 100 mm wide, such as to have a series of packages each being 50 mm long and SO mm wide and charged with 3.0 g of a deoxidizing agent containing iron powder. The thus formed package train was coiled in good order on a collared bobbin having a core made of a thick paper sheet and having an inside diameter of 3 inches and a thickness of 7 mm. The package train had 2,000 pieces of deoxidizing agent packages connected in series. Immediately after the preparation, the package train was placed in a sack made of drawn nylon/polyethylene coated with vinylidene chloride. The ~Z~8738 sack was deaerated and then sealed.
As a comparison example, a similar deoxidizing agent package train of known folded type was prepared. This package train of the comparison example had 2,000 pieces of packages which were folded at every 8 packages, and was sealed in a sack of the same material as that used for the package train of the invention.
These two types of package train were taken out of the sacks and were subjected to a test severing operation which was conducted with an automatic severing apparatus (Model NR4 produced by Asahi Kinzoku K.K.). The test operation was conducted at a severing rate of 20 packages per minute. The oxygen absorption capacity was measured on the first package, the 1,000 th package and the 2,000 th package for each type of package train. The measurement of the oxygen absorption capacity was conducted by sealing the sample packages in sacks of the same material as above together with 3 litres of air, preserving the sample packages in the sealed state at 25 C for seven days, and then measuring the oxygen concentration as the oxygen absorption.
The results of the test are shown in Tables 1 and 2.
Table 1 _.. , Oxygen absorption (7 days after: ml) .
1st package 1,000th package 2,000th package _ Packages of invention 275 270 260 Comparison Example 241 201 125 Table 2 \ Number of times of severing failure \l Packages of inventionl 0 Comparison example ¦ 3 , I
As will be seen from Table 2, no severing failure was observed when the package train of the invention was handled by the automatic severing apparatus, whereas lnferior severing was experienced with the package train of the comparison example, due to the presence of folds in the package train. In fact, severing failure was observed three times during the severing operation. It will be understood also that, while the package train in accordance with the present invention showed no substantial reduction in the oxygen absorption capacity, a significant reduction was 12~j8~7~8 observed with the package train of the comparison example, and the 2,000 th package of the comparison example was materially unusable.
As has been described, according to the invention, it is possible to obtain a train of package having a large number of packages containing a deoxidizing agent, without any risk of reduction in the oxygen absorption capacity which inevitably takes place in the conventional package train before fed to an automatic severing apparatus. In addition, the package train of the present invention enables the automatic severing apparatus to cut the package train precisely at the connecting webs at which adjacent packages are connected, so that products such as foodstuffs sealed together with a deoxidizing agent package can be produced at a high yield.
Although the invention has been described through its preferred form, it is to be noted that the described embodiment is only illustrative and various changes and modifications may be imparted thereto without departing from the scope of the invention which is limited solely by the appended claims.
Claims (3)
1. A continuous package train comprising a plurality of packages connected in series, each package charged with a deoxidizing agent, including:
a belt-like package train having a plurality of said packages connected in series in at least one direction;
and a core on which said belt-like package train is coiled in layers around said core in such a manner that packages in one layer overlap packages in an adjacent layer and substantially prevent air from entering between adjacent layers of said packages, said belt-like package train having at least one surface layer formed from a plastic film including polyethylene terephthalate, polyamide, polypropylene, or cellophane, said deoxidizing agent exhibiting reduction rates of oxygen adsorption capacity of at least 5% when exposed to an atmosphere of 50 to 60% relative humidity at 25 degrees C. and at least one member selected from the group consisting of ascorbic acid, a salt of ascorbic acid, and a metal powder, and said core having a circumferential length which is at least twice as large as the length of one of said packages as measured in the winding direction and is formed from a material having an oxygen permeability of about 100,000 cc/m Hr. atm. or less.
a belt-like package train having a plurality of said packages connected in series in at least one direction;
and a core on which said belt-like package train is coiled in layers around said core in such a manner that packages in one layer overlap packages in an adjacent layer and substantially prevent air from entering between adjacent layers of said packages, said belt-like package train having at least one surface layer formed from a plastic film including polyethylene terephthalate, polyamide, polypropylene, or cellophane, said deoxidizing agent exhibiting reduction rates of oxygen adsorption capacity of at least 5% when exposed to an atmosphere of 50 to 60% relative humidity at 25 degrees C. and at least one member selected from the group consisting of ascorbic acid, a salt of ascorbic acid, and a metal powder, and said core having a circumferential length which is at least twice as large as the length of one of said packages as measured in the winding direction and is formed from a material having an oxygen permeability of about 100,000 cc/m Hr. atm. or less.
2. A continuous package train according to claim 1, wherein said body of said package train has thick-walled sack portions constituting said packages charged with said deoxidizing agent and sealed connecting webs having a thickness smaller than that of said sack portions, said sack portions and said sealed connecting webs being arranged alternatingly in the longitudinal direction of said body of said package train.
3. A package train according to claim 1 wherein said deoxidizing agent contains iron powder.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP283073/85 | 1985-12-18 | ||
| JP28307385 | 1985-12-18 | ||
| JP61273387A JP2536498B2 (en) | 1985-12-18 | 1986-11-17 | Deoxidizer continuous package and its cutting device |
| JP273387/86 | 1986-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1268738A true CA1268738A (en) | 1990-05-08 |
Family
ID=26550643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000524762A Expired - Fee Related CA1268738A (en) | 1985-12-18 | 1986-12-08 | Continuous package train of deoxidizing agent and apparatus for severing packages |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4752002A (en) |
| EP (1) | EP0229491B1 (en) |
| CA (1) | CA1268738A (en) |
| DE (1) | DE3679531D1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2626252B1 (en) * | 1988-01-26 | 1990-05-18 | Bull Sa | PACKAGING SHIM, CONTAINER FOR SUCH A SHIM AND PACKAGING METHOD USING SUCH A SHIM |
| JP2926724B2 (en) * | 1988-11-09 | 1999-07-28 | 三菱瓦斯化学株式会社 | Oxygen absorber storage bag and cutting method thereof |
| DE3844004A1 (en) * | 1988-12-27 | 1990-07-05 | Eickmann Karl | Washing-agent roll |
| US5079901A (en) * | 1989-05-08 | 1992-01-14 | Carol J. Witt | Coupon inserting apparatus and method |
| US6722108B1 (en) | 1989-05-08 | 2004-04-20 | Carol Joyce Witt | Coupon inserting apparatus |
| US5202052A (en) * | 1990-09-12 | 1993-04-13 | Aquanautics Corporation | Amino polycarboxylic acid compounds as oxygen scavengers |
| US6709724B1 (en) | 1990-05-02 | 2004-03-23 | W. R. Grace & Co.-Conn. | Metal catalyzed ascorbate compounds as oxygen scavengers |
| ATE188986T1 (en) | 1990-05-02 | 2000-02-15 | Advanced Oxygen Technologies I | POLYMER COMPOSITIONS CONTAINING OXYGEN Scavengers |
| US5337897A (en) * | 1990-05-21 | 1994-08-16 | Gerald Yablans | Sampler cartridge display case and unit sampler |
| WO1992012004A1 (en) † | 1991-01-07 | 1992-07-23 | Multiform Desiccants, Inc. | Oxygen-absorbing label |
| US5686161A (en) * | 1991-01-07 | 1997-11-11 | Multisorb Technologies, Inc. | Moisture-sensitive label |
| US5667863A (en) * | 1991-01-07 | 1997-09-16 | Multisorb Technologies, Inc. | Oxygen-absorbing label |
| US5364555A (en) * | 1991-04-30 | 1994-11-15 | Advanced Oxygen Technologies, Inc. | Polymer compositions containing salicylic acid chelates as oxygen scavengers |
| FR2688198B1 (en) * | 1992-03-06 | 1994-04-29 | Benzaria Jacques | CONTAINER CHAIN FOR GRANULAR SOLID MATERIALS, ITS MANUFACTURE AND ITS USES. |
| US5543129A (en) * | 1994-11-17 | 1996-08-06 | Mg Industries | Non-cryogenic method and apparatus for producing pure nitrogen |
| US5644899A (en) * | 1995-12-26 | 1997-07-08 | Motorola, Inc. | Method for packaging semiconductor components for shipment |
| EP0935569B1 (en) | 1996-10-31 | 2001-01-03 | WITT, Carol Joyce | Three-dimensional insert construction |
| US5803261A (en) * | 1996-10-31 | 1998-09-08 | C. Joyce Witt | Three dimensional insert construction |
| US6037022A (en) * | 1997-09-16 | 2000-03-14 | International Paper Company | Oxygen-scavenging filled polymer blend for food packaging applications |
| US6076671A (en) * | 1998-03-18 | 2000-06-20 | The United States Of America As Represented By The Secretary Of The Army | Solid particle aerosol belt and dissemination method |
| US6035610A (en) * | 1998-10-07 | 2000-03-14 | Exact Packaging Incorporated | Method and apparatus for separating and inserting items packaged in a bandolier |
| EP1243524A3 (en) * | 2001-03-16 | 2004-04-07 | Pfizer Products Inc. | Pharmaceutical kit for oxygen-sensitive drugs |
| US6829876B1 (en) * | 2002-02-05 | 2004-12-14 | Robert W. Young | Process for splicing a continuous strip of packets |
| ITMI20021272A1 (en) * | 2002-06-11 | 2003-12-11 | Mariagrazia Frattini | ICE CUBE PACKAGING STRUCTURE |
| GB0221493D0 (en) * | 2002-09-17 | 2002-10-23 | Glaxo Group Ltd | Method for loading a medicament dispenser with a medicament carrier |
| US6802172B1 (en) * | 2002-11-20 | 2004-10-12 | The United States Of America As Represented By The Secretary Of The Army | Particle aerosol belt |
| US20120223080A1 (en) * | 2009-08-03 | 2012-09-06 | Heinz Wernli | Elongate Packing |
| SE539024C2 (en) * | 2014-09-15 | 2017-03-21 | Scan Coin Ab | Distribution of coins in bags |
| SE538350C2 (en) * | 2014-09-15 | 2016-05-24 | Scan Coin Ab | Distribution of coins in bags |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US494907A (en) * | 1893-04-04 | Peter f | ||
| GB191202091A (en) * | 1912-01-26 | 1912-07-11 | Henry Booth | An Improvement in or in connection with Rolls of Tickets. |
| US1295141A (en) * | 1916-04-18 | 1919-02-25 | American Button & Fastener Company | Method of mounting and packaging small articles. |
| US3189227A (en) * | 1962-12-07 | 1965-06-15 | American Home Prod | Fluid dispenser |
| US3295289A (en) * | 1964-02-11 | 1967-01-03 | Eastman Kodak Co | Pouch forming and filling method and apparatus |
| FR1471169A (en) * | 1965-12-22 | 1967-03-03 | Rhodiaceta | Wire packaging |
| GB1153779A (en) * | 1966-11-29 | 1969-05-29 | Jacob Salomon | Heat-Sealing Apparatus |
| US3728921A (en) * | 1971-04-01 | 1973-04-24 | Hayseen Mfg Co | Apparatus for cutting a web into sheets and positioning the sheets |
| US3850294A (en) * | 1971-04-29 | 1974-11-26 | Owens Corning Fiberglass Corp | Package of saturated unsized glass filaments |
| US3751875A (en) * | 1971-09-09 | 1973-08-14 | H Membrino | Apparatus for filling, sealing and dispensing bags |
| US4100681A (en) * | 1976-11-08 | 1978-07-18 | Hollander Bruce L | Picture frame leveling device |
| JPS555362A (en) * | 1978-06-26 | 1980-01-16 | Mitsubishi Gas Chemical Co | Method of automatic supply |
| JPS557121A (en) * | 1978-06-26 | 1980-01-18 | Mitsubishi Gas Chem Co Inc | Automatic feeding method |
| JPS5692538A (en) * | 1979-12-27 | 1981-07-27 | Koei Chem Co Ltd | Developing solution storing method |
| US4406370A (en) * | 1980-03-29 | 1983-09-27 | Foseco International Limited | Additive containers for metal casting |
| JPS5826322A (en) * | 1981-08-07 | 1983-02-16 | Matsushita Electric Ind Co Ltd | Method and apparatus for manufacture of magnetic recording medium |
| JPS5832113A (en) * | 1981-08-20 | 1983-02-25 | Mitsubishi Electric Corp | Magnetic bearing ginbal wheel for artificial satellite |
| JPS5833052A (en) * | 1981-08-20 | 1983-02-26 | Matsushita Electric Ind Co Ltd | Controlling device of water heater |
| JPS5911054A (en) * | 1982-07-12 | 1984-01-20 | Omron Tateisi Electronics Co | Data transmitter |
| JPS5918254A (en) * | 1982-07-21 | 1984-01-30 | Nissan Motor Co Ltd | Idling speed controlling method for internal combustion engine |
| JPS5918255A (en) * | 1982-07-23 | 1984-01-30 | Hitachi Ltd | Variable venturi carburetor |
| KR890005278B1 (en) * | 1983-01-28 | 1989-12-20 | 미쓰비시가스가가꾸 가부시끼 가이샤 | Oxygen absorbent packet |
| CA1239122A (en) * | 1984-02-09 | 1988-07-12 | Toshio Komatsu | Package containing quality-retaining agent |
-
1986
- 1986-12-08 CA CA000524762A patent/CA1268738A/en not_active Expired - Fee Related
- 1986-12-10 EP EP86309614A patent/EP0229491B1/en not_active Expired - Lifetime
- 1986-12-10 DE DE8686309614T patent/DE3679531D1/en not_active Expired - Fee Related
- 1986-12-15 US US06/941,331 patent/US4752002A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0229491B1 (en) | 1991-05-29 |
| EP0229491A2 (en) | 1987-07-22 |
| US4752002A (en) | 1988-06-21 |
| EP0229491A3 (en) | 1989-02-08 |
| DE3679531D1 (en) | 1991-07-04 |
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| MKLA | Lapsed |