JP2000355362A - Filling package for viscous matter, laminated film for filling package for viscous matter, and manufacture of filling package for viscous matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily separate and take out a viscous matter from a laminated film and to decrease the adherent amount of the viscous matter by a method wherein an emulsifier film comprising of a glyceric fatty acid ester or the like is formed at the surface contacting with the viscous matter filled for package of a sealant layer of the laminated film. SOLUTION: A filling package A comprising a viscous matter b such as mayonnaise is formed of a laminated film C having a base layer 1 and a sealant layer 2, and after a bag-making is made with the sealant layer 2 arranged at the innermost position, a sealing-up is made with its opening heat sealed. A film 3 on which an emulsifying agent in an orderly molecular arrangement selected out of groups comprising a glyceric fatty acid ester, a sorbitan fatty acid ester, a propylene glycol fatty acid ester and the like is applied is formed at the surface of the sealant layer 2 contacting with the viscous matter b of the laminated film C. The emulsifying agent shall be a matter that is approved as an additive for food and capable of keeping two kinds of liquids unmixable with each other from being separated in an efflulsified condition for a long period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a viscous material-filled package obtained by filling and sealing a viscous material such as dough paste or shortening such as flower paste into a plastic laminated film bag. TECHNICAL FIELD The present invention relates to a method for producing a laminated film for a packed product and a viscous packed product.

[0002]

2. Description of the Related Art At the present time, in the market distribution of sticky and dense products such as dough paste and shortening, so-called viscous materials, it is necessary to form packages made of plastic films into bags. They are filled and supplied to the desired market.

However, when the viscous material packed in the package is taken out at the time of use, the viscous property of the viscous material causes the viscous material to stick to the inner surface of the package, causing the viscous material to flow inside the package. The viscous material that had poor properties and was in contact with the inner surface of the package remained on the inner surface and was difficult to take out, and the operation was extremely troublesome. The unextracted viscous material remaining in the package after removing the viscous material is discarded together with the package, and a relatively large amount of the waste may be generated. In addition to significantly lowering the extraction yield, the disposal of the waste has environmental problems.

[0004] For this reason, there has been provided, in part, a technique in which a container for the contents is provided with a releasability of the contents so that the contents can be easily taken out. This is pesticide,
The container peeling effect of the above-mentioned contents is obtained by forming a container wall in contact with the contents as a container for foods, cosmetics, etc. with a 4-methyl-1-pentene polymer composition layer (Japanese Patent Application Laid-Open No. H10-1998). No. 100293).

However, in this technique, a liquid agricultural chemical or the like is stored in a hard container such as a multilayer blow-molded bottle to improve the adhesion to the inner surface of the container. For bags filled with viscous materials such as kneaded dough, the characteristics are different from the releasability when turning over the film in the opening part and taking out, causing many problems in the bag making properties and filling and packaging characteristics of the bags. .

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a laminated film of a filled package, wherein a surface of a sealant layer in contact with a viscous material is coated with glycerin fatty acid. Ester, sorbitan fatty acid ester, propylene glycol fatty acid ester and the like by forming a film having a regular molecular arrangement of emulsifiers selected from the group consisting of fatty acid esters, etc., in the soft packaging of the viscous material, peeling the viscous material from the film At the time of taking out, the work is performed rationally to improve the yield of the viscous material and the workability of taking out the viscous material, and to reduce the adhered amount of the viscous material as waste. It is an object of the present invention to provide a filled package, a laminated film for a filled package of a viscous material, and a method for producing a packed package of a viscous material.

[0007]

Means of the present invention for achieving the above object is to form a bag from a laminated film having a base material layer and a sealant layer such that the sealant layer is the innermost. In a filled package formed by filling and packing a viscous substance inside the bag, the laminated film has a glycerin fatty acid ester, a sorbitan fatty acid ester and a propylene glycol fatty acid on the surface of the sealant layer in contact with the viscous substance. The present invention is directed to a packed package of a viscous material having a film of an emulsifier selected from the group consisting of esters and the like.

[0008] The laminated film comprising the base material layer and the sealant layer comprises a heat-shrinkable film made of biaxially stretched polyamide and a polyolefin-based sealant film.

[0009] Then, in the laminated film of the package for filling and packaging the viscous material consisting of dough or shortening, the surface of the sealant layer in contact with the viscous material, which is the content filled and packaged by the laminated film, The present invention provides a laminated film for a packed package of a viscous material formed with a film of an emulsifier selected from the group consisting of glycerin fatty acid ester, sorbitan fatty acid ester and propylene glycol fatty acid ester.

[0010] The laminated film comprising the base material layer and the sealant layer is formed by laminating a base material film made of polyamide, polyester or polypropylene and a polyolefin-based sealant film.

[0011] Furthermore, a package is formed from a laminated film having a base material layer and a sealant layer so that the sealant layer is located on the innermost side, and a viscous substance is filled and packaged inside the bag. In the method of the above, the surface of the sealant layer, a glycerin fatty acid ester, a sorbitan fatty acid ester and an emulsifier selected from the group consisting of propylene glycol fatty acid ester, by a roll coating method or the like to form a laminated film strip The body is formed into a cylindrical shape in the process of continuously moving from top to bottom, and the vertically overlapping portion is vertically sealed to form a cylindrical package, and the lower end of the package is horizontally sealed and viscous. After filling things,
The present invention relates to a method for producing a packed package of a viscous material which is horizontally sealed by treating the upper end.

The amount of the emulsifier coated on the sealant layer by a roll coating method or the like is a solid content of 0.4%.
It has a surface state in which pure water is uniformly wetted at a g / m ² or less and a JIS-K-6768 wetting index value of 70 dyn / cm or more.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing an embodiment of a method for manufacturing a package filled with a viscous substance, a laminated film for a package filled with a viscous substance, and a package filled with a viscous substance according to the present invention. It will be described based on the following. In FIG. 1, A is a filling package of a viscous material b made of shortening such as kneaded bean paste or flower paste or jam or mayonnaise, as shown in FIG.
A bag is formed from the laminated film C having the base material layer 1 and the sealant layer 2 so that the sealant layer 2 is located on the innermost side, and the inside of the bag is filled with the viscous substance b, and the opening is heat-sealed. It is to be sealed and packaged.

The laminated film C has a regular molecular arrangement of an emulsifier d selected from the group consisting of glycerin fatty acid ester, sorbitan fatty acid ester and propylene glycol fatty acid ester on the surface of the sealant layer 2 in contact with the viscous material b. The emulsifier d, which forms the formed film 3, is an emulsifier approved as a food additive and is a substance that does not separate two types of liquids that are not mixed with each other into milky state for a long period of time.

The base layer 1 is made of a biaxially stretched polyamide film, a shrinkable biaxially stretched polyamide film, a biaxially stretched polyethylene terephthalate film, or the like. The film thickness is about 9 μm to 50 μm. Preferably, the thickness is 12 μm to 25 μm.

The sealant layer 2 is made of an olefin-based film or a polyester-based film, and has a film thickness of about 15 μm to 120 μm, preferably 40 μm to 80 μm.

When the viscous material b contained in the package A is taken out from the film 3 having the regular molecular arrangement of the emulsifier d, the film 3 has good releasability from the inner surface of the package A.
The effective arrangement of the membrane 3 is such that the lipophilic group of the emulsifier d is rooted inside the sealant layer 2 in the multilayer film C, and the hydrophilic group is located on the surface of the sealant layer 2. The face appears in a regular arrangement.

The emulsifier d is coated on the sealant layer 2 by, for example, a coating method using a roll coating machine 4 as shown in FIG. 3, and the storage layer 5 containing the emulsifier d is coated. A transfer roll 6 driven to rotate is laid horizontally so as to be immersed in the emulsifier d, and a press roll 7 is provided above the transfer roll 6 so as to correspond to the transfer roll 6. During this time, the sealant layer 2 in the multilayer film C is supplied so as to face downward, so that the emulsifier d attached to the surface of the transfer roll 6 is drawn onto the transfer roll 6 together with the extraction of the multilayer film C. The coating is uniformly transferred to the surface of the sealant layer 2 of the contacting multilayer film C. After coating, the coating is sufficiently dried at a predetermined drying temperature.

The film 3 formed on the surface of the sealant layer 2 functions as the filling package A, and maintains the mechanical suitability for the filling and packaging machine, the blocking property at the time of roll winding, and the sealing strength of the filling package A. In order to satisfy the property, and to improve the peeling property at the time of taking out, a specific thin film structure is required, and when the coating amount of the emulsifier d is too large or too small, the present invention is carried out. Since the film 3 having a regular molecular arrangement cannot be formed as in the example, it is preferable that this coating step is performed under a certain condition.

That is, the coating amount of the emulsifier d to be coated on the polyolefin-based sealant film 2 by the above-described roll coating method is 0.4 g / m ² or less and 0.06 g / m ² or more. , Preferably 0.1 g /
m ^{2 to} 0.2 g / m ² , and JIS-K-6
It has a surface state of so-called pure water of 768 or more with a wetting index value of 70 dyn / cm or more. When the coating amount of the emulsifier d is 0.4 g / m ² or more, there is a disadvantage that the surface sticking becomes large, and the solid coating amount is 0.05 g.
/ M ² or less, there is a disadvantage that the peelability of the viscous material becomes insufficient.

In the above-described bag making of the packed package A and the packed packing of the viscous material b, a vertical pillow filling and packaging machine 8 as shown in FIG. 4 is used. The emulsifier d-coated laminated film C is formed in a cylindrical shape in a molding member 9 such as a sailor in a process of continuously moving from the state of the strip to the upper part to the lower part, and the sealant layers 2 are joined together. The combined superposed vertical portions 10 in a palm-shape shape are closely and vertically heat-sealed by roller-shaped heat sealers 11 and 11, and the end portions 12 are closely and horizontally heat-sealed by plate-shaped heat sealers 13 and 13. In this state, the filling means 1 provided above the molding member 9
The viscous substance b is filled in the bag-shaped interior by 4 and, after filling, the opening 12 is closely and laterally heat-sealed by the plate-shaped heat sealers 13, 13.

[0022]

[Example] Laminated film (a): Permanent adhesive type Shrinkable biaxially stretched polyamide film with a thickness of 15 μm as a substrate (Bonyl ST, manufactured by Mitsubishi Chemical Kojin Pax Co., Ltd.)
A low-density polyethylene film having a thickness of 20 μm and a linear low-density polyethylene film having a thickness of 60 μm (trade name: TUX-FC manufactured by Tocelo Co., Ltd.) at an extrusion temperature of 320 ° C. while being subjected to an isocyanate primer treatment.
D) was subjected to sandwich processing to obtain a laminated film (a).

Laminated film (b): easily openable sealant type A 15 μm-thick biaxially stretched polyamide film (trade name, manufactured by Unitika Ltd.) as a substrate is subjected to an isocyanate-based primer treatment by an extrusion laminator. 320
A laminated film (b) was obtained by sandwiching a low-density polyethylene having a thickness of 15 μm and a thickness of 60 μm, and an easily-openable sealant film made of a resin such as polyethylene or ethylene-propylene rubber at an extrusion temperature of ° C.

In each of these laminated films (a) and (b),
It can be used for vertical pillow-filled packages, and the laminated film (a) has a seal strength of 2.0 kgf / 15
It is set to a little over mm, and it is mainly used to tear the package and take out the viscous material inside. For the laminated film (b), the seal strength is 0.7 kgf / 15 m
It is set to about m, and is mainly used for peeling off the seal portion, developing the package, and taking out the viscous material inside.

The conditions for forming a film by applying an emulsifier to the surface of the sealant layer of the laminated film are shown in Table 1 below for four examples of the examples and six examples of the comparative examples.

[Table 1] The following evaluations were performed on each of the films (a) to (j) obtained under the above-described conditions, and the results are shown in Table 2. The evaluation items are as follows. (1) Peelability of viscous material Filled with dough, shortening and jam by vertical pillow filling and packaging machine manufactured by Orihiro Co., Ltd.
After the standing, the package was opened, and the release state of the viscous material from the film when the viscous material was taken out was observed. The display of the evaluation is as follows: ☆: very good, ○: good, Δ: slightly poor, ×: poor (2) Sticking property of the surface A film obtained by winding the film, which is considered to be caused by stickiness of the surface of the sealant layer, is used. And the difficulty of loosening during rewinding and the difficulty of hooking in a filling and packaging machine were observed. ☆: Very good, ○: Good, △: Slightly poor, ×: Poor (3) Heat seal strength The heat seal strength between the sealant layers of the film is (kgf / 15 mm), and the seal condition is the seal temperature (160 ℃) × Seal pressure (2.0kgf / cm ² )
X Seal time (1.0 s), and the measurement was performed by a Tensilon tensile test in a width of 15 mm.

[0026]

[Table 2]

[0027]

As described above, in the packed package of the viscous substance according to the present invention, the filled viscous substance hardly adheres to the inner surface of the bag as the package. Therefore, the amount of the viscous material adhering to the inside of the package and being discarded is extremely small, and the viscous material can be easily peeled from the bag when the package is opened. Taking advantage of these features, it can be suitably used for a relatively large viscous food filled package for business use. And so on.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view showing one embodiment of a viscous-filled package according to the present invention.

FIG. 2 is an enlarged sectional view of a main part showing one embodiment of a laminated film used for a filling package in FIG.

FIG. 3 is an explanatory view showing a coating state on a laminated film surface in FIG. 1;

FIG. 4 is an explanatory view showing an operation state of the filled package in FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 base material layer 2 sealant layer 3 film A filled package b viscous material C laminated film d emulsifier

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification FI FI Theme Court ゛ (Reference) B65D 65/42 B65D 65/42 C (72) Inventor Masayuki Oshima 2-3 Kawaramachi, Chuo-ku, Osaka-shi, Osaka No. 10 F-term in Kyorak Co., Ltd. (Reference) 3E050 AA02 AA03 AA04 AA08 AB02 BA02 DC02 DD04 DF01 FB01 FB07 3E067 AA04 AB14 BA12A BB14A BB26A CA24 EA06 3E086 AD01 BA04 BA15 BA24 BA40 BB51 BB90 ACAB46 AK50 AT00A BA03 BA07 BA10A CA18C CB03B DA01 EJ38A GB16 JA03A JL01 JL02 JL05 JL12 JL12B JM03C

Claims (6)

[Claims] 1. A filled package formed by laminating a laminated film having a base material layer and a sealant layer such that the sealant layer is located on the innermost side, and filling and packaging a viscous material inside the bag. In the above, the laminated film is characterized in that a film of an emulsifier selected from the group consisting of glycerin fatty acid ester, sorbitan fatty acid ester and propylene glycol fatty acid ester is formed on the surface of the sealant layer in contact with the viscous material. Packed package of viscous material. 2. The viscous material according to claim 1, wherein the laminated film comprising the base material layer and the sealant layer comprises a heat-shrinkable film made of biaxially stretched polyamide and a polyolefin-based sealant film. Filled package. 3. A laminated film of a package for filling and packaging a viscous material comprising dough or shortening, wherein the surface of the sealant layer in contact with the viscous material, which is the content filled and packaged by the laminated film, A laminated film for a packed package of a viscous material, wherein a film of an emulsifier selected from the group consisting of glycerin fatty acid ester, sorbitan fatty acid ester, propylene glycol fatty acid ester and the like is formed. 4. A laminated film comprising a base material layer and a sealant layer is characterized in that a base material film made of polyamide, polyester, polypropylene or the like and a polyolefin-based or polyester-based or polyamide-based sealant film are laminated. The laminated film for a packed package of a viscous material according to claim 3. 5. A filled package formed from a laminated film having a base material layer and a sealant layer such that the sealant layer is located on the innermost side, and a viscous material is filled and packaged inside the bag. In the method of the above, the surface of the sealant layer, a glycerin fatty acid ester, sorbitan fatty acid ester and an emulsifier selected from the group consisting of propylene glycol fatty acid ester, coated by a roll coating method or the like strip-shaped laminated film The body is formed into a cylindrical shape in the process of continuously moving from top to bottom, and the vertically overlapping portion is vertically sealed to form a cylindrical package, and the lower end of the package is horizontally sealed and viscous. A method for producing a packed package of viscous material, characterized in that after filling the material, the upper end is treated and sealed horizontally. 6. The coating amount of the emulsifier coated on the sealant layer by a roll coating method or the like is 0.4 g / solid content.
m ² or less, 70 in JIS-K-6768 wettability index
The method for producing a packed package of viscous material according to claim 5, characterized in that it has a surface state of dyn / cm or more in which pure water is uniformly wetted.