JP2844277B2 - Filling and packaging method for viscous material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for filling and packaging a viscous material, which is used to fill a viscous material into a package made of a film.

[0002]

2. Description of the Related Art A method for filling and packing a viscous material in which a viscous material is filled and packed in a package made of a film is known from JP-A-64-53075. Means for improving the meat releasability are known and described in JP-B-57-6947 and JP-B-46-40829.

[0003]

The above-mentioned JP-A-64-53
No. 075, in a package made of a film, a consumer removes a viscous material.
When peeling the viscous material and the film, there is a problem in the so-called flaking property that the viscous material adheres to the film side. If the removability is poor, a substantial amount of the viscous substance is used, and it is troublesome to collect the viscous substance attached to the film side.

[0004] There is also a means described in Japanese Patent Publication No. 57-6947 on the inner surface of a package that comes into contact with a viscous material in order to improve meat detachment. However, when filling a viscous material into a package made of a bag made of a film, even if the part 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. Thus, it becomes difficult to remove the sticky substance from the seal, and the viscous substance remains on the seal part, resulting in a decrease in seal strength and poor appearance of the package.

Further, those described in JP-A Japanese Patent Publication 46-40829, as a pulled muscle resistance is relatively good packaging, machine more both ends of the tube to the metal binding member <br/>械的This is a so-called rocket package that is widely used as a package for ham and sausage. However, in the the package it is because it uses metal binding member, whether foreign matter inspection is a problem that it is difficult to generate foreign objects into the housing thereof or the like metal detectors are mixed.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the problems in a conventional package made of a bag made of a film, and has an excellent thickness, a good horizontal seal, and a metal detector.
That foreign matter inspection of the storage object is not only it can be easily, viscous
After filling, a high internal pressure is applied to the sealed part of the package.
Seal strength and reliability by sealing horizontally
The package is then immersed in warm water and stacked.
By shrinking the layer film, compress the viscous material and package
Appearance shape by making body shape smooth appearance
Viscous material with smooth surface and excellent durability of the seal part
It is an object of the present invention to provide a method for filling and packing a viscous material from which a package can be obtained . The technical means for that are as follows. That is, a belt-like film in which an outer layer made of a heat-shrinkable resin and an inner layer made of a heat-welding resin are laminated is formed into a tubular shape in a process of continuously moving from above to below, and a vertically overlapping portion is vertically sealed. A cylindrical forming step of forming a cylindrical package by sealing the lower end of the package horizontally and adapting to the shrinkage of the film to form the package.
Fill the lower part of the package with viscous material so that the shape changes.
But the upper part of the package has little swelling and contains
After the product has been reduced in size, the filling and sealing process in which the upper end of the package is handled and horizontal sealing is performed, and the filled and sealed viscous material is packaged
Because it is not filled in the body,
The packaging body forming the irregular flat shape was immersed in warm water, a medium of the laminated film by Rukoto deflated, by compressing the viscous substance
And a shrinking / compressing step of forming a smooth circular shape in the cross section of the central part in order.

[0007]

A cylindrical 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-welding resin are laminated, and the lower end of the package is horizontally sealed, and then filled with a viscous material. After handling the upper end of the package, seal horizontally. At this time, the viscous material that has come into contact with the inner layer, which is a heat-welding resin, is satisfactorily removed from the seal portion by handling, so that the strength of the horizontal seal is sufficiently maintained. Then, the filled package is immersed in warm water to shrink the laminated film. At this time, heat conduction by immersion acts uniformly on the outer surface of the package, and the entire package shrinks favorably, thereby compressing the viscous material and simultaneously packing the viscous material. Is shaped and the releasability when opening the package is improved. In the present invention, the lower end of the package is
And the shape of the package conforms to the shrinkage of the film.
The bottom of the package should be filled with viscous material so that the
Although it is more swollen, the upper part of the package is less swollen and the inner volume is
In the reduced state, handle the top of the package and seal horizontally.
In a state where high internal pressure is not applied to the seal part of the package
Can be horizontally sealed. For this reason, the seal of the horizontal seal
The strength and reliability of the tool are greatly improved. Because of this,
After that, the package is immersed in warm water to shrink the laminated film.
By pressing the viscous material, the shape of the package is smooth and round.
Even the cross-sectional shape, the viscous product package with excellent filling and packaging method of superior gum durability of the sealing portion to the durability of the seal portion
Is obtained. Also, packaging body gum-filled, does not use a metal binding member, it is possible to particle inspection of stored articles due to a metal detector.

[0008]

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 illustrates an apparatus for carrying out a method for filling and packaging a viscous material according to the present invention. The apparatus is roughly divided into a filling and packaging apparatus 1 and an immersion apparatus 2, and the immersion apparatus 2 is schematically shown in a reduced scale in the drawing. Hereinafter, a method for filling and packaging the viscous material will be described for each process. (1) Cylindrical Forming Step A film in which an outer layer made of a heat-shrinkable resin and an inner layer made of a heat-welding resin are laminated via an adhesive is prepared as a winding roll A1. Then, the band-shaped film A2 supplied from the winding roll A1 is shaped into a cylindrical shape through a shaping cylinder 4 surrounding the periphery of the filling loader 3, and moves continuously from top to bottom. In the process of moving the film, the vertically overlapped portion of the film is heat-sealed by the vertical seal heater built in the vertical sealing machine 5 to form a continuous tubular package A3. (2) Filling and sealing step A viscous substance such as a flower paste is kneaded in advance, and is filled into the cylindrical package A3 by the filling loader 3 by a fixed amount transfer pump (not shown). The filling rate of the viscous material is
In order to adapt to the shrinkage of the film, the amount is less than the maximum filling capacity of the package A3 (about 60 to 95% ) .
Reference numerals 6 and 6 denote a pair of feed rolls for feeding the package A3 downward, and a pair of handling rolls 7 and 7 are arranged below the feed rolls. At the lower end of the package A4 filled with the viscous material, the portion removed by handling the viscous material is heat-sealed by the pair of horizontal sealing machines 8,8. Next, the above-mentioned wrapping body A4, which is continuously connected, is sequentially moved downward, and the moved wrapping body A5 is heat-sealed again with the pair of horizontal sealing machines and cutters 9, 9, thereby lowering the horizontal sealing portion 11 at the lower end again . The upper end of the downwardly continuous package A6 is sealed by the horizontal seal portion 12.
Seal. At this time, the package A
The bottom of the package A5 is filled with a viscous material so that the shape of the package 5 changes.
Swelled by filling, but swelled above package A5
And the internal volume is reduced. And downward
The continuous package A6 is separated and cut. In addition, the package A5
At the upper end of the viscosity was removed portion by treatment with squeezing rolls 7, 7 are heat-sealed by a pair of horizontal sealing machine 8,8. The package A6 in the separated and cut state is a viscous material.
Is irregular, so the surface of the package A6 is irregular
Unevenness, and the cross section at the center of the package A6 is not
It has a regular flat cross section. (3) Shrinking Compression Step As shown in FIG. 2, the package A6 obtained as described above has an appearance having irregular irregularities. In addition,
Reference numeral 13 denotes a vertical seal portion. Package A filled with viscous material
6, the conveyor belt is transported to the dipping device 2 (not shown), the retainer 2 mounted on the endless conveyor 21
2 housed. Package A6 stored in retainer 22
Is continuously immersed in warm water (40 ° C. to 98 ° C.) in the bathtub 23 to shrink the laminated film of the immersed package A7,
Press on viscous material. This resulted in an irregular shape
The packing body A6 has a reduced flattening rate and a central cross section.
The result is a smooth circular package A7. Next, bathtub 2
The package A8 taken out from 3 is transported by the shooter 24, and is dried and packed in a box. FIG. 3 shows the package A8 after the shrinking compression step. The appearance of the irregular asperity shown in FIG. 2 is immersed in warm water to shrink the laminated film,
By pressing the stored viscous material, a smooth and curved external shape is formed.

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, or polyvinyl chloride. This is a layer composed of linear low-density polyethylene, low-density polyethylene, and other olefin-based resins. The laminated film constituting the package may be formed into 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, from the comprehensive viewpoint of immersion shrinkage, shrinkage followability, handleability, heat sealability, cold resistance, and surface strength, the most preferred layer configuration is biaxial stretching in which the outer layer has a thickness of 10 to 30 microns. 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 an excellent adhesion of 10 to 30 microns is interposed between the outer layer and the inner layer. . Also,
In the present invention, the viscous substance refers to flower paste, potato salad, margarine, paste, paste, chocolate, cheese, and other viscous foods, medical viscous substances such as poultices, and the like, which retain their appearance at room temperature. Various viscous substances that can be formed. In the shrinking and compressing step of the present invention, the immersion in warm water may be spray immersion without using a bathtub.

[0010]

The present invention has the following effects. (1) The film to be made is made by laminating an outer layer made of a heat-shrinkable resin and an inner layer made of a heat-welding resin.
In addition, since the filled package is immersed in warm water to shrink the laminated film and press the viscous material, the package is excellent in loosening property. (2) Since a laminated film having a fine uneven surface formed on the inner layer is not used, unlike a conventional package having an improved inner surface, which is excellent in loosening properties, it is possible to handle viscous materials and perform horizontal sealing well. it can. (3) Since a metal binding member is not used unlike a conventional package having excellent detachment properties and mechanically bound at both ends, it is possible to easily perform a foreign substance inspection of a storage object made of a viscous material. . (4) After filling the viscous material, high internal pressure is not applied to the package.
Sealing strength and reliability by sealing horizontally
Can be greatly improved, and then the package is
By immersing and shrinking the laminated film, the viscous material is compressed.
That the shape of Sako to the packaging body is a smooth appearance shape
The appearance is smooth and the strength and strength of the seal
A viscous package having excellent durability and durability can be obtained.

[Brief description of the drawings]

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

FIG. 2 is a perspective view showing a package formed by the apparatus shown in FIG. 1 before contraction.

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

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Filling and packaging apparatus 2 Dipping apparatus 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 and cutter 11 Horizontal sealing section 12 Horizontal sealing section 13 Vertical seal portion 21 Endless conveyor 22 Retainer 23 Bath tub 24 Shooter A1 Roll roll A2 Film A3 Cylindrical package A4 Filled package A5 Sealed package A6 Package before shrinkage compression step A7 Dipped Package A8 Package after shrinking compression process

Claims (1)

(57) [Claims] 1. A belt-like film formed by laminating an outer layer made of a heat-shrinkable resin and an inner layer made of a heat-welding resin is formed into a cylindrical shape in a process of continuously moving from top to bottom, and a vertical overlapping portion is formed. A vertical molding process to form a cylindrical package, and a horizontal seal at the lower end of the package to reduce film shrinkage.
The lower part of the package is sticky so that the
Swelled up by filling with a material, but above the package
A filling and sealing process in which the upper end of the package is laterally sealed with little swelling and a reduced internal volume, and that the filled and sealed viscous material is not filled in the package
After immersing the packaging <br/> Sokarada forming an irregular flattened shape in transverse section of the central portion to the hot water, Rukoto contract the laminated film
The smooth the cross section of the central portion by compressing the viscous substance
A shrinking and compressing step of forming a circular shape, and a method of filling and packing a viscous substance, which is performed in order.