JPH0585509A - Filling/packaging method for viscous object - Google Patents

Abstract

PURPOSE:To provide a filling/packaging method for viscous objects, which can give an excellent peelability when a viscous object and a film are separated, and by which a lateral sealing can be favorably performed, and in addition, foreign matter inspection for the content can be easily performed. CONSTITUTION:A band-shaped film A2, for which an outer layer made of a heat-shrinkable resin and an inner layer made of a heat-weldable resin are laminated, is formed into a cylindrical packaging body A3 at a process in which the band-shaped film A2 is continuously moved from the top to the bottom. A cylindrical packaging body A4 is formed by longitudinally sealing the overlapped part in the longitudinal direction of the cylindrical packaging body A3. The lower end of the cylindrical packaging body 4A is laterally sealed, and at the same time, after filling a viscous object, the upper end of the cylindrical packaging body A4 is laterally sealed to complete the filling and sealing. The filled and sealed packaging body A6 is immersed in a hot water to shrink the laminated film, and the viscous object is pressed to obtain a shrunk and pressed packaging body A8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a viscous material filling and packaging method in which a viscous material is filled in a package formed by making a film into a package.

[0002]

2. Description of the Related Art A method for filling and packaging a viscous substance in which a viscous substance is filled in a packaging body formed from a film bag and a packaging body are known from JP-A-64-53075. Means for improving the meat separation property are described in JP-B-57-6947 and JP-B-46-40829 and are known.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the package formed by bag-making the film described in Japanese Patent No. 075, in order for the consumer to take out the viscous substance,
When the viscous material and the film are peeled off, there is a problem in the so-called meat separation property that the viscous material adheres to the film side. If the meat separation property is poor, the amount of the viscous substance used is substantially reduced, and it is complicated to collect the viscous substance adhered to the film side.

In order to improve the meat separating property, there is also a means as described in JP-B-57-6947 on the inner surface of the package which comes into contact with the viscous material. However, when filling a viscous material into a package formed by making a film bag, even if the portion of the package to be sealed is handled, the viscous material is buried in the minute uneven surface and the viscous material is to be sealed. Therefore, it becomes difficult to remove the viscous substance, and thus the viscous substance remains attached to the seal portion, resulting in a decrease in seal strength and a poor appearance of the package.

Further, the one described in Japanese Patent Publication No. 46-40829 is a so-called rocket package in which both ends of a tube are mechanically bound by metal binding members as a package having a relatively good meat separation property. The body is widely used as a package for hams and sausages.
However, in this package, since the metal binding member is used, there arises a problem that it becomes difficult to inspect whether or not foreign matter is mixed in the stored items.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the problems in the conventional packaging body in which a film is made into a bag. It is an object of the present invention to provide a method for filling and packaging a product. The technical means for that are as follows. That is, a strip-shaped film obtained by laminating an outer layer made of a heat-shrinkable resin and an inner layer made of a heat-welding resin,
In the process of continuously moving from the upper side to the lower side, it is formed into a tubular shape, and the vertically overlapping portion is vertically sealed to form a tubular package, and the lower end of the tubular package is horizontally sealed. After filling with the viscous material, the filling and sealing step of handling the upper end of the tubular package and laterally sealing it, and immersing the filled and sealed package in hot water to shrink the laminated film and press the viscous material The method of filling and packaging a viscous material, which sequentially undergoes a shrinking compression step.

[0007]

[Function] A tubular package is formed from a film in which an outer layer made of a heat-shrinkable resin and an inner layer made of a heat-fusible resin are laminated, and then the lower end of the tubular package is horizontally sealed and then filled with a viscous substance. Then, after handling the upper end of the tubular package, it is laterally sealed. At this time, the viscous substance that comes into contact with the inner layer, which is the heat-welding resin, is removed well from the seal portion by handling.
The strength of the lateral seal is sufficiently maintained. Then, the filled and sealed package is immersed in warm water to shrink the laminated film. At this time, the heat conduction due to the dipping acts uniformly on the outer surface of the package, and the entire package contracts well, so that the viscous substance is pressed and the package filled with the viscous substance is also compressed. The appearance shape of is improved, and the peeling property of the package when the package is opened is improved. Further, since the package filled with the viscous material does not use the metal binding member, it is possible to inspect the foreign matter in the stored item by a metal detector or the like.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 illustrates an apparatus for carrying out the method for filling and packaging a viscous material according to the present invention. The devices are roughly classified into a filling and packaging device 1 and a dipping device 2, and the dipping device 2 is schematically shown in a reduced scale in the drawing. Hereinafter, the method of filling and packaging the viscous material will be described step by step. (1) Cylindrical forming step A film obtained by laminating an outer layer made of a heat-shrinkable resin and an inner layer made of a heat-welding resin via an adhesive is prepared as a winding roll A1. Then, the strip-shaped film A2 supplied from the winding roll A1 is shaped into a cylinder through the shaping cylinder 4 surrounding the filling loader 3 and sequentially moves continuously from the upper side to the lower side. In the process of moving the film, the overlapped portion in the vertical direction of the film is heat-sealed by the vertical seal heater built in the vertical sealing machine 5 to form a continuous cylindrical package A3. (2) Filling and Sealing Step A viscous substance such as flower paste is kneaded in advance and filled into the cylindrical package A3 from the filling loader 3 by a constant-quantity transfer pump (not shown). The filling rate of the viscous material is
It is about 60 to 95% of the maximum filling capacity of the tubular package A3 so as to be compatible with the shrinkage of the film. Reference numerals 6 and 6 denote a pair of feed rolls that feed the tubular package A3 downward, and a pair of handling rolls 7 and 7 are arranged below the feed rolls. The cylindrical package A4 filled with the viscous material is heat-sealed at its lower end by the pair of horizontal sealing machines 8 and 8 at the portion where the viscous material is handled and removed. Next, the above-mentioned package A4 continuous in a continuous manner moves downward, and the moved package A5 re-heat-seales the horizontal seal part 11 at the lower end with a pair of horizontal sealers / cutters 9, 9 and The continuous package A6 is separated and cut. In addition, the package A
At the upper end of 5, the part where the viscous material is handled and removed by the handling roll 7 is heat-sealed by a pair of horizontal sealing machines 8, 8. (3) Shrinkage compression step As shown in FIG. 2, the package A6 obtained as described above has an outer shape with irregular irregularities. In addition,
Reference numeral 13 is a vertical seal portion. Package A filled with viscous material
6 is a retainer 2 which is transferred to the dipping device 2 by a conveyor belt (not shown) and attached to the endless conveyor 21.
It is housed in 2. Package A6 housed in retainer 22
Is continuously immersed in warm water (40 ° C. to 98 ° C.) in the bath 23 to shrink the laminated film of the immersed package A7,
Press viscous material. Next, the package A8 taken out of the bath 23 is transferred by the shooter 24, dried, and then packed in a box. FIG. 3 shows the package A8 after the shrinking and compressing step, and the appearance of the irregular unevenness shown in FIG. 2 is to immerse the laminated film in hot water to shrink the laminated film and press the stored viscous material. The outer shape is smooth and curved.

In the present invention, the outer layer made of a heat-shrinkable resin is a layer formed by stretching a resin such as polyamide, polyethylene terephthalate, polypropylene and polyvinyl chloride, and the inner layer made of a heat-welding resin is This layer is made of linear low-density polyethylene, low-density polyethylene, and other olefin resins. Further, the laminated film constituting the package may be further composed of three or more layers by appropriately laminating an adhesive layer, a heat resistant layer, an oxygen barrier layer, a printing layer and the like. In addition, the most preferable layer structure is biaxially stretched with an outer layer having a thickness of 10 to 30 μm from the viewpoint of synthetic dip shrinkage, shrinkage followability, handleability, heat sealability, cold resistance, and surface strength. Polyamide, the inner layer is a linear low-density polyethylene having a thickness of 20 to 40 microns, and has a three-layer structure in which an intermediate layer having a thickness of 10 to 30 microns and excellent in adhesiveness is interposed between the outer layer and the inner layer. .. Also,
In the present invention, the viscous substance is a viscous food such as flower paste, potato salad, margarine, paste, starch syrup, chocolate, cheese, etc., medical viscous substance such as poultice, etc. Various viscous substances that can be produced. Further, in the shrinkage compression step of the present invention, the immersion in warm water may be spray immersion without using a bath.

[0010]

The present invention has the following effects. (1) The bag-making film is a laminate of an outer layer made of a heat-shrinkable resin and an inner layer made of a heat-fusible resin,
In addition, since the filled and sealed package is dipped in hot water to shrink the laminated film and press the viscous material, it is excellent in meat separation property. (2) Unlike the conventional packaging body having an improved inner surface, which is excellent in meat separation property, since a laminated film having a fine uneven surface formed on the inner layer is not used, it is possible to perform good handling of viscous substances and lateral sealing. it can. (3) Since a metal binding member is not used unlike the conventional packaging body having both ends mechanically bound, which is excellent in separability, foreign matter can be easily inspected for a storage object made of a viscous material.

[Brief description of drawings]

FIG. 1 is a schematic view showing an example of an apparatus for carrying out the viscous material filling and packaging method according to the present invention.

FIG. 2 is a perspective view showing a state of a package manufactured by the apparatus of FIG. 1 before shrinking, which is a state before shrinkage.

FIG. 3 is a perspective view showing a state of the package shown in FIG. 2 after contraction.

[Explanation of symbols]

 1 Filling and packaging device 2 Immersion device 3 Filling loader 4 Shaping cylinder 5 Vertical sealing machine 6,6 Feed roll 7,7 Handling roll 8,8 Horizontal sealing machine 9,9 Horizontal sealing machine / cutter 11 Horizontal sealing part 13 Vertical sealing part 21 Endless conveyor 22 Retainer 23 Bathtub A1 Winding roll A2 Film A3 Cylindrical package A4 Filled package A5 Sealed package A6 Package before shrinkage compression process A7 Dipped package A8 Shrink compression process After packaging

Claims (1)

[Claims] 1. A strip-shaped film, in which an outer layer made of a heat-shrinkable resin and an inner layer made of a heat-weldable resin are laminated, is formed into a tubular shape in the process of continuously moving from the upper side to the lower side, and its longitudinally overlapped portion is formed. A cylindrical molding process that vertically seals to form a tubular package, and the lower end of the tubular package is laterally sealed and a viscous substance is filled, and then the upper end of the tubular package is handled and horizontally sealed. A method for filling and packaging a viscous material, which comprises a sealing step and a shrinking and compressing step of immersing the filled and sealed package in hot water to shrink the laminated film and compress the viscous material.