JP2003326654A - Multilayered laminated resin film - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multilayered laminated resin film which contains no aluminum, is excellent in light blocking effect or light barrier properties, has suitability for the infilling and packaging of contents, suitability for preservation and the like, and is made excellent in suitability for disposal, suitability for the environment and the like by preventing the generation of a harmful substance and the like in incineration and disposal after use. <P>SOLUTION: Characteristically, this multilayered laminated resin film is constituted by coextruding and laminating a first white resin layer which is composed of a resin composition containing at least a thermoplastic resin and a white coloring agent, a black resin layer which is composed of a resin composition containing at least a thermoplastic resin and a black coloring agent, and a second white resin layer which is composed of a resin composition containing at least a thermoplastic resin and a white coloring agent, in this order. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multilayer laminated resin film, and more specifically, it has various physical properties such as strength, weather resistance, heat resistance, water resistance, heat seal, and the like. In particular, it has excellent light-shielding properties, suitability for filling and packaging of contents, suitability for storage, etc. Furthermore, it is easy to inspect for foreign substances with a metal detector and it also removes harmful substances when incinerating and discarding after use. The present invention relates to a multilayer laminated resin film which is excellent in disposal suitability, environmental suitability, etc. without being generated.

[0002]

2. Description of the Related Art Conventionally, for example, food and drink, fruit juice, juice
Su, drinking water, liquor, cooked food, seafood paste, frozen food,
For filling and packaging various food and drink products such as meat products, boiled foods, rice cakes, liquid soups, seasonings, etc., liquid detergents, cosmetics, chemical products, and other products, plastic films, metal foils, cellophane, Laminates have been developed and proposed as packaging materials in various forms in which other base materials are arbitrarily laminated. Thus, in recent years, in the above-mentioned laminated material, for example, sunlight such as the sun or a fluorescent lamp or fluorescence is transmitted, and the transmitted light affects the contents,
For example, the contents are decomposed or deteriorated, or fading,
Because of other problems such as causing photodegradation, various light-blocking or light-blocking materials have been studied, and various light-blocking or light-blocking materials have been developed and proposed. As the above-mentioned light-shielding or light-shielding material, the most common one is an aluminum foil or an aluminum vapor-deposited film. By the way, when the above-mentioned aluminum foil or aluminum vapor-deposited film is used, the aluminum foil, aluminum vapor-deposited film or the like has a barrier property for preventing permeation of oxygen gas, water vapor, etc. and also has a light-shielding property such as sunlight or fluorescence. Since it is an extremely useful material, aluminum foil and the like lack bending resistance and the like, so that pinholes are likely to occur and the barrier properties are impaired. When it is disposed of as waste after use as, for example, when it is disposed of by incineration, metal such as aluminum remains, it may damage the incinerator, and it lacks suitability for disposal and environmental destruction etc. It is not preferable because it causes the above problems and lacks environmental suitability. Furthermore, when using an aluminum foil or an aluminum vapor-deposited film, for example, when a metal detector (foreign substance) or the like is used to detect a metal piece (foreign substance) mixed in the contents, There is also a problem that it is extremely difficult for the aluminum foil or the aluminum vapor-deposited film or the like to react with a metal detector and detect the metal piece (foreign matter) to perform an inspection.

Therefore, in recent years, instead of the above-mentioned aluminum foil or aluminum vapor deposition film as the light-shielding or light-shielding material, a white colorant or a black colorant has been used without using them. , A white or black colored layer or film containing the same is formed, and the white or black colored layer or film reflects or absorbs sunlight, fluorescence, or the like to block light or block light. A new technique has been proposed in which the white or black colored layer or film is used as a light-shielding or light-shielding material because it exhibits a function. Specifically, the milky white film having a white pigment content of 5 to 20% by weight and a thickness of 10 μm or more, and the black pigment content of 0.2 to 1.
0% by weight, and containing a white pigment in a weight ratio of 2.0 to 60 with respect to 1 of the black pigment, and having a thickness of 1
A laminated film for food packaging formed by laminating a gray film having a thickness of 0 μm or more, and further, a film layer made of an ethylene-α-olefin copolymer is laminated on the gray film side of the laminated film for food packaging described above. A laminated film for food packaging has been proposed (JP-A-11-910).
See Japanese Patent Publication No. 42. ). However, in the laminated film for food packaging proposed above, in appearance, since it is a packaging material that can see through a gray film, normally, such a grayish packaging material is used. When such foods and drinks are filled and packaged in such a manner, it is difficult for such a packaged product to give the purchaser a good impression of the contents, and the impression such as stains cannot be denied. As a rule, the use is usually avoided. Generally, in packaging materials for filling and packaging foods and drinks, it is a general concept to avoid the use of a black colored film or the like decorated or colored with a black colorant such as a black pigment. Is. Therefore, the present invention is aluminum-less, and uses a black colored film or the like decorated or colored with a black colorant such as a black pigment, but it is difficult to see through it in appearance. Its existence is completely unknown, its influence is not recognized, and its strength and the like are excellent, and weather resistance, heat resistance, water resistance, heat seal, and other various physical properties are excellent, and in particular, It has excellent light-shielding or light-shielding properties, suitability for filling and packaging of contents, suitability for storage, etc. Furthermore, it facilitates inspection of metal pieces (foreign substances) with a metal detector and is harmful when incinerating and discarding after use. It is an object of the present invention to propose a multilayer laminated resin film which is excellent in disposal suitability, environmental suitability, etc. without generating substances and the like.

[0004]

As a result of various studies on the above-mentioned light-shielding or light-shielding material, the present inventor first found that the first resin composition containing at least a thermoplastic resin and a white colorant was used. A white resin layer, a black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant, and a second white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant. A multi-layer laminated resin film consisting of a coextrusion laminated structure, or
A first white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant, a black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant,
A second white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant, and a first thermoplastic resin layer made of a resin composition containing at least a thermoplastic resin as a main component of a vehicle in this order. A multi-layered laminated resin film having a coextrusion laminated structure, further comprising a second thermoplastic resin layer made of a resin composition containing at least a thermoplastic resin as a main component of a vehicle, at least a thermoplastic resin and a white colorant. A first white resin layer made of a resin composition, a black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant, and a second white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant. White resin layer, and
A multilayer laminated resin film having a constitution in which a first thermoplastic resin layer is coextruded and laminated in order of a resin composition containing at least a thermoplastic resin as a main component of a vehicle, and then the multilayer laminated resin film is used. , A base material film or the like is optionally laminated thereon to produce a laminated material as a packaging material, and then the laminated material is used to make a bag to produce a packaging bag. After that, when a packaging product is manufactured by filling and packaging the contents such as desired food and drink in the packaging bag, it has strength and the like, and has weather resistance, heat resistance, water resistance, and heat sealability. , And other various physical properties, in particular, excellent in light-shielding property or light-shielding property, for example, blocking the transmission of sunlight or fluorescent light by the sun or fluorescent lamps, the contents are decomposed or altered, or May cause photo-degradation such as fading and other It has excellent suitability for filling and packaging of contents, suitability for storage, etc., and is extremely excellent in disposal suitability, environmental suitability, etc. without generating harmful substances when incinerated and disposed of after use. The present invention has been completed by finding that it is possible to manufacture a packaging bag in which metal pieces (foreign substances) can be easily detected by a metal detector or the like.

That is, the present invention provides a first white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant, and a black resin made of a resin composition containing at least a thermoplastic resin and a black colorant. Layer, and a multi-layer laminated resin film comprising a structure in which a second white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant is coextruded in this order, or at least a heat A first white resin layer made of a resin composition containing a plastic resin and a white colorant, a black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant, at least a thermoplastic resin and a white colorant A second white resin layer made of a resin composition containing, and a first thermoplastic resin layer made of a resin composition containing at least a thermoplastic resin as a main component of a vehicle. A multi-layer laminated resin film, characterized by comprising a coextrusion laminated structure, and further a second thermoplastic resin layer made of a resin composition containing at least a thermoplastic resin as a main component of a vehicle, at least a thermoplastic resin and a white system A first white resin layer made of a resin composition containing a colorant,
A black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant; a second white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant;
And a multi-layer laminated resin film having a constitution in which at least a thermoplastic resin is coextruded and laminated in order of a second thermoplastic resin layer made of a resin composition containing a vehicle as a main component.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The multilayer laminated resin film according to the present invention will be described in more detail below with reference to the drawings. First, the layer constitution of the multilayer laminated resin film according to the present invention will be described with reference to the drawings by exemplifying a few examples thereof. FIGS. 1, 2 and 3 show the multilayer laminated resin film according to the present invention. It is a schematic sectional drawing which shows the layer structure of the 23 examples, and FIG.4 and FIG.5 is the laminated material as a packaging material manufactured using the multilayer laminated resin film concerning this invention shown in said FIG. FIG. 6 is a schematic cross-sectional view showing the layer structure of the first and second examples, and FIGS. 6 and 7 show a laminated material manufactured by using the multilayer laminated resin film according to the present invention shown in FIG. FIG. 1 is a schematic perspective view showing an example of the configuration of a packaging bag that is manufactured by using the multilayer material and manufacturing the bag using the multilayer laminated resin film according to the present invention.

First, as the multilayer laminated resin film A according to the present invention, as shown in FIG. 1, a first white resin layer 1 made of a resin composition containing at least a thermoplastic resin and a white colorant, at least a heat Coextrusion lamination of a black resin layer 2 made of a resin composition containing a plastic resin and a black colorant, and a second white resin layer 3 made of a resin composition containing at least a thermoplastic resin and a white colorant in this order. The basic structure consists of the above structure. Next, as another example of the multilayer laminated resin film according to the present invention, as shown in FIG. 2, a first white resin layer 1 made of a resin composition containing at least a thermoplastic resin and a white colorant is used. A black resin layer 2 made of a resin composition containing at least a thermoplastic resin and a black colorant, a second white resin layer 3 made of a resin composition containing at least a thermoplastic resin and a white colorant, and at least heat First thermoplastic resin layer 4 made of a resin composition containing a plastic resin as a main component of a vehicle
A multilayer laminated resin film A ₁ having a constitution in which it is coextruded and laminated in this order can be exemplified. Furthermore, regarding another example of the multilayer laminated resin film according to the present invention,
As shown in FIG. 3, a second thermoplastic resin layer 5 made of a resin composition containing at least a thermoplastic resin as a main component of a vehicle, and a first thermoplastic resin layer made of a resin composition containing at least the thermoplastic resin and a white colorant. A white resin layer 1, a black resin layer 2 made of a resin composition containing at least a thermoplastic resin and a black colorant, a second white resin layer 3 made of a resin composition containing at least a thermoplastic resin and a white colorant, Another example is a multilayer laminated resin film A ₂ having a constitution in which a first thermoplastic resin layer 4 made of a resin composition containing at least a thermoplastic resin as a main component of a vehicle is coextruded and laminated in this order. The above examples are examples of the multilayer laminated resin film according to the present invention, and the present invention is not limited thereto.

By the way, the multilayer laminated resin film according to the present invention basically has strength and the like, and has weather resistance and weather resistance.
It is excellent in various physical properties such as heat resistance, water resistance, heat seal, etc., and in particular, it is excellent in light-shielding property or light-shielding property, for example, it prevents transmission of sunlight or fluorescence by the sun or fluorescent lamp. , Acts as a light-shielding or light-shielding layer that prevents the contents from decomposing or deteriorating, or causing photo-degradation such as fading and the like, and also acts as a heat-sealant layer during bag making, etc. However, it has suitability for filling and packing of contents, suitability for storage, etc. Furthermore, it is extremely excellent in disposal suitability, environmental suitability, etc. without generating harmful substances when incinerated and disposed of after use. In addition, it has an advantage that it does not react with a metal (foreign matter) detector or the like. The multilayer laminated resin film according to the present invention will be described more specifically. In the multilayer laminated resin film according to the present invention, the first and second white resin layers basically basically conceal the black resin layer. The concealing layer functions as a light-shielding or light-shielding layer that reflects or diffuses sunlight or fluorescence from the sun or fluorescent lamps and blocks the transmission thereof, and further, the first white resin layer is For example, when directly or indirectly forming a printed pattern of desired characters, symbols, pictures, figures, etc. on the above, printing of desired characters, symbols, pictures, figures, etc. which compose the printed pattern The second white resin layer acts as a base layer for making a pattern clear, and constitutes a laminated material as a packaging material described later, and when the bag is made using this, for example, a seal is used. Department Heat to be formed -
It functions as a tosyl resin layer or the like. next,
In the multilayer laminated resin film according to the present invention, the black resin layer basically acts synergistically with each other and the white resin layer described above, and absorbs sunlight, fluorescence or the like from the sun or fluorescent lamps. However, the light-blocking or light-blocking layer that blocks the transmission of the light and, in combination with the first and second white resin layers described above, absorbs the sunlight or fluorescent light from the sun or fluorescent lamps and blocks the transmission thereof. It acts as.

Furthermore, in the multilayer laminated resin film according to the present invention, the first and second thermoplastic resin layers basically basically protect the first and second white resin layers or the black resin layer. Acting as a protective layer, and in some cases, acting as a hiding layer for hiding these,
Further, when the second thermoplastic resin layer directly or indirectly forms a desired print pattern such as a character, a symbol, a picture, a figure, etc. on the second thermoplastic resin layer, a desired pattern forming the print pattern is desired. It acts as an underlayer that makes printed patterns such as letters, symbols, pictures, figures, etc. clear, and the first thermoplastic resin layer constitutes a laminated material as a packaging material described later and is used. When it is used to make a bag, it acts as a heat-sealable resin layer for forming a seal portion. Thus, since the multilayer laminated resin film according to the present invention is aluminum-less, it is extremely excellent in disposal suitability, environmental suitability, etc. after use and does not generate harmful substances when incinerated and disposed of. In addition, it has an advantage of facilitating inspection of a metal piece (foreign matter) by a metal detector or the like. In the present invention, although not shown, the purpose of use,
Depending on the application and the like, other base materials can be arbitrarily laminated to design and produce multi-layer laminated resin films of various forms.

Next, in the present invention, a laminated material as a packaging material produced by using the above-mentioned multilayer laminated resin film according to the present invention and arbitrarily laminating it with other base material film etc. To give a few examples, the case of using the multilayer laminated resin film A according to the present invention shown in FIG. 1 will be described. First, as shown in FIG. 4, a desired base film 11 is subjected to corona treatment or the like. On the back side consisting of
After forming the printed pattern layer 12 including desired characters, symbols, patterns, figures, etc., the multilayer laminated resin film A shown in FIG. 1 is formed on the surface of the base film 11 including the printed pattern layer 12. , The surfaces of the first white resin layer 1 constituting it are opposed to each other, and then the two layers are laminated, for example, with a laminate adhesive layer 13 interposed therebetween,
A laminated material B using the multilayer laminated resin film according to the present invention can be manufactured. Alternatively, in the present invention, as shown in FIG. 5, first, a printed pattern layer 12 including desired characters, symbols, pictures, figures, etc. is first formed on the back surface of the desired base film 11 formed by corona treatment or the like. Then, the barrier substrate 14 is placed on the surface of the substrate film 11 including the printed pattern layer 12 so as to face each other, and then the two layers are laminated, for example, the adhesive layer 13 for laminate. And the like, and then the multilayer laminated resin film A shown in FIG. 1 is further formed on the surface of the barrier substrate 14 laminated as described above to form the first white resin layer 1
The surfaces of the two are laminated so as to face each other, and then the two layers are laminated, for example, via the adhesive layer 15 for laminate, and the laminated material B ₁ using the multilayer laminated resin film according to the present invention is laminated. Can be manufactured. The above examples are examples of the laminate material as a packaging material produced by using the multilayer laminated resin film according to the present invention, and the present invention is not limited thereto. It is a thing. For example, although not shown, instead of forming the printed pattern layer or the like on the back surface of the substrate film as described above, the first white resin layer or the second heat resin layer constituting the multilayer laminated resin film according to the present invention is used. After forming a print pattern layer consisting of desired characters, symbols, pictures, figures, etc. on the surface of the plastic resin layer, etc., a base film is laminated on the surface containing the print pattern layer, and then both Between the layers
For example, it is possible to produce a laminated material using the multilayer laminated resin film according to the present invention by laminating with an adhesive layer for laminating or the like. In addition, in the present invention, the multilayer laminated resin film according to the present invention shown in FIGS. 2 and 3 above is used, and any other base film or the like can be arbitrarily used as shown in FIGS. It is possible to laminate and laminate any material as a packaging material in various forms.

Next, in the present invention, a laminated material as a packaging material produced by using the above-mentioned multilayer laminated resin film according to the present invention is used, and the present invention is produced by bag making. An example of the packaging bag will be described below. As the packaging bag according to the present invention, for example, a packaging bag manufactured using the laminated material B shown in FIG. 4 will be described. As shown in FIG. 6, two of the above laminated materials B and B are prepared, and the second layer positioned in the innermost layer is prepared.
The surfaces of the white resin layers 3 and 3 are overlapped with each other so as to face each other, and then the second white resin layers 3 and 3 are caused to act as a heat-sealable resin layer to form an end portion around the outer periphery thereof. The three sides are heat-sealed to form the seal portions 21, 21, 21 and the opening portion 22 is provided above the seal portions 21, 21, 21 to manufacture the three-way seal type bag-shaped container body C. Thus, in the present invention, as shown in FIG. 7, from the opening 22 of the three-way seal type bag-shaped container body C manufactured above, for example, food and drink, fruit juice, juice, drinking water. , Liquor, cooked food, seafood paste,
Frozen foods, meat products, simmered foods, rice cakes, liquid soups, seasonings, various food and drink products, liquid detergents, cosmetics, chemical products,
The contents 23 made of other articles are filled, and then the end portion of the upper opening 22 is heat-sealed to form the upper seal portion 24 and the like, and the multilayer laminated resin according to the present invention. It is possible to manufacture a packaged product D having various forms using a packaging bag C in which a laminated material produced by using a film is made into a bag.

Needless to say, in the present invention, the packaging bag according to the present invention is not limited to the shape of the exemplary packaging bag illustrated above, and depending on its purpose, use, etc. It goes without saying that it is possible to manufacture packaging bags of various forms such as a two-sided seal type, a four-sided seal type, a self-supporting type, a gusset type, a square bottom type and the like. Further, in the present invention,
Using the laminated material shown in FIG. 5 and further the laminated material as a packaging material produced using the multilayer laminated resin film according to the present invention shown in FIG. 2 and FIG. It goes without saying that it is possible to manufacture a packaging bag having various forms according to the present invention by making a bag, and to optionally manufacture a packaging product or the like using the packaging bag.

Next, in the present invention, the materials constituting the multilayer laminated resin film and the like according to the present invention, the manufacturing method and the like will be described. First, the first and second components constituting the multilayer laminated resin film and the like according to the present invention. As the thermoplastic resin forming the white resin layer, the black resin layer, the first and second thermoplastic resin layers, etc., for example, they are melted by heat and can be extruded from an extrusion die such as an extruder. Further, it is possible to use one kind or a mixture of two or more kinds of thermoplastic resins which can be heat-sealed to each other, and specifically, for example, low density polyethylene (LDPE), linear (linear) Low density polyethylene (polymer polymerized using multi-site catalyst, LLDPE), ethylene-α-olefin copolymer polymerized using metallocene catalyst (single-site catalyst), medium density polyethylene (MDPE), high density polyethylene (HDPE), polypropylene resin, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-methacrylic acid copolymer Polyolefin resin such as polymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer, methylpentene polymer, polybutene polymer, polyethylene or polypropylene is used as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumar -Acid-modified polyolefin resin modified with unsaturated carboxylic acid such as acid and itaconic acid, polyvinyl acetate resin, poly (meth) acrylic resin, polyvinyl chloride resin, thermoplastic polyester resin, thermoplastic polyamide resin Of thermoplastic resin such as resin, etc. 1 to 2
More than one species can be used.

Thus, the first and second white resin layers and the black resin layer constituting the multilayer laminated resin film according to the present invention are prepared by using one or more of the above-mentioned thermoplastic resins. By forming the first and second thermoplastic resin layers and the like, each layer has mutual affinity and the like, and during coextrusion molding, each layer firmly adheres tightly and is excellent in strength and the like. Moreover, it is possible to form a multilayer laminated resin film having excellent physical properties such as weather resistance, heat resistance, water resistance, and the like. Further, in the present invention, one or more of the above-mentioned thermoplastic resins are used, and the first and second white resin layers or the first and second white resin layers constituting the multilayer laminated resin film according to the present invention are used. By forming the first and second thermoplastic resin layers and the like, one of the first and second white resin layers or the first and second thermoplastic resin layers is thermally fused to each other. Since it is composed of the thermoplastic resin to be obtained,
A heat sheet that forms a seal portion when making a bag such as a packaging bag.
It acts as a resinous resin layer or the like and can form a very good seal portion or the like.

In the present invention, the white colorant forming the first and second white resin layers constituting the multilayer laminated resin film according to the present invention is, for example, the sun or a fluorescent lamp. It reflects or diffuses sunlight, fluorescence, etc., and blocks or blocks its transmission, and prevents decomposition or deterioration of the contents packed and packed in the packaging bag, or photo-deterioration such as fading, etc. Specifically, for example, it is desirable to use one or a mixture of two or more coloring agents such as various white-based inorganic or organic dyes and pigments. In the present invention,
Examples of the white-based various inorganic or organic dyes, colorants such as pigments, basic lead carbonate, basic lead sulfate, basic lead silicate, zinc white, zinc sulfide, lithopone,
Antimony trioxide, anatas type titanium oxide, rutile type titanium oxide, calcium carbonate, zinc oxide, barium sulfate,
One or more types of white pigments such as others can be used. ． The amount used is about 0.1 to 30% by weight, and preferably about 0.1% by weight to the thermoplastic resin forming the resin composition forming the first and second white resin layers.
It is desirable to add about 0.5 to 20% by weight to use.

Next, in the present invention, the black colorant forming the black resin layer constituting the multilayer laminated resin film or the like according to the present invention is, for example, sunlight such as sun or fluorescent lamp, or fluorescent light. It absorbs (mainly in the visible region from near ultraviolet), blocks or blocks its transmission, and prevents decomposition or deterioration of the contents packed in the packaging bag or photo-deterioration such as fading and others. Specifically, for example, it is desirable to use a mixture of one or more kinds of colorants such as various black-type inorganic or organic dyes and pigments. In the present invention, various black or inorganic dyes or organic dyes,
As the colorant such as a pigment, for example, one or more kinds of black pigments such as iron black, graphite or carbon black, electrically conductive materials (polyaniline, polypyrrole), etc. may be used. You can The amount used is 0.1 wt% to 10 wt%, preferably 0.5 wt% to 5 wt% with respect to the thermoplastic resin forming the resin composition forming the black resin layer. It is desirable to use.

In the present invention, as the black resin layer constituting the multilayer laminated resin film or the like according to the present invention,
For example, a gray resin layer using a mixture of the above black colorant and the above white colorant can also be used. That is, in the present invention, a gray resin layer made of a resin composition containing at least a thermoplastic resin, a black colorant and a white colorant is used as the black resin layer constituting the multilayer laminated resin film or the like according to the present invention. However, such a gray resin layer absorbs the sun or fluorescent light or the like formed from the sun or a fluorescent lamp, and blocks or blocks the transmission of the sun, or the decomposition or decomposition of the contents packed in the packaging bag. Alteration,
Alternatively, it is possible to prevent light deterioration such as fading and the like. In the above, as the black colorant, it is possible to use one or two or more of the above black pigments made of iron black, graphite or carbon black, and as the white colorant. One of the above white pigments such as basic lead carbonate, basic lead sulfate, basic lead silicate, zinc white, zinc sulfide, lithopone, antimony trioxide, anatas type titanium oxide, rutile type titanium oxide, etc. Two or more can be used. The amount of the black pigment added to the thermoplastic resin forming the resin composition is 0.1 to 10.0% by weight, and the white pigment is 0.1 to 30.0% by weight. Can be used.

Next, in the present invention, a resin composition containing at least a thermoplastic resin and a white colorant forming the first and second white resin layers constituting the multilayer laminated resin film according to the present invention will be described. Then, in the present invention, for example, one or more of the above-mentioned thermoplastic resins is the main component of the vehicle, and one or more of the above-mentioned white colorant is added thereto, and further, If necessary, in forming the film, for example, the processability of the film, heat resistance, weather resistance, mechanical properties, dimensional stability, antioxidant properties, slipperiness, releasability, flame retardancy, mold resistance, For the purpose of improving or modifying electric characteristics, strength, etc., one or more kinds of various plastic compounding agents and additives are arbitrarily added,
Further, if necessary, a solvent, a diluent and the like are added and sufficiently kneaded to prepare a resin composition containing at least a thermoplastic resin forming the first and second white resin layers and a white colorant. can do.

Further, in the present invention, a resin composition containing at least a thermoplastic resin forming a black resin layer constituting the multilayer laminated resin film according to the present invention and a black colorant will be explained. In the present invention, For example, one or more of the above-mentioned thermoplastic resins is used as the main component of the vehicle, and one or more of the above-mentioned black colorants is added to this.
Furthermore, if necessary, at the time of forming the film, for example, processability of the film, heat resistance, weather resistance, mechanical properties, dimensional stability, antioxidation property, slipperiness, releasability, For the purpose of improving and modifying flame retardancy, antifungal properties, electrical properties, strength, etc., one or more kinds of various plastic compounding agents and additives are optionally added, and further, if,
A resin composition containing at least a thermoplastic resin forming a black resin layer according to the present invention and a black colorant can be prepared by adding a solvent, a diluent and the like and sufficiently kneading.

Further, in the present invention, a resin composition containing at least a thermoplastic resin, a black colorant and a white colorant which form a gray resin layer constituting the multilayer laminated resin film according to the present invention will be explained. In the present invention, for example, one or more kinds of the above-mentioned thermoplastic resins are used as the main component of the vehicle, and one or more kinds of the above-mentioned white colorants and the above-mentioned black-colored colorants are added thereto. One or two or more of them are added, and further, if necessary, in forming the film, for example, the processability of the film, heat resistance, weather resistance, mechanical properties, dimensional stability, antioxidation property, and slipperiness. , One or more kinds of various plastic compounding agents and additives are arbitrarily added for the purpose of improving and modifying releasability, flame retardancy, antifungal properties, electrical characteristics, strength, etc. In addition, if necessary, solvent, dilution Etc. were added, and sufficiently kneaded, it is possible to prepare a resin composition containing at least a thermoplastic resin to form a gray resin layer according to the present invention and a black coloring agent and white-based colorant.

Next, in the present invention, the resin composition containing at least the thermoplastic resin forming the first and second thermoplastic resin layers constituting the multilayer laminated resin film according to the present invention as the main component of the vehicle will be explained. Then, in the present invention, for example, one or more of the above-mentioned thermoplastic resins is used as the main component of the vehicle, and further, if necessary, in the process of forming the film, for example, the processability of the film,
Heat resistance, weather resistance, mechanical properties, dimensional stability, antioxidant,
Any one or more of various plastic compounding agents and additives may be used for the purpose of improving and modifying slipperiness, releasability, flame retardancy, mold resistance, electrical properties, strength, etc. At least the thermoplastic resin forming the first and second thermoplastic resin layers according to the present invention, by adding a solvent, a diluent and the like, and kneading the mixture sufficiently. In order to conceal the above-mentioned white resin layer, black resin layer, etc., from the transparent or translucent resin composition as a component or one or more of the above-mentioned thermoplastic resins as the main component of the vehicle For example, one or more kinds of coloring agents such as dyes and pigments are added, and further, if necessary, for example, processability of the film, heat resistance, weather resistance, mechanical properties , Dimensional stability, anti-oxidant, slipperiness, releasability, flame retardant, anti-mold For the purpose of improving and modifying electrical characteristics, strength, etc., one or more kinds of various plastic compounding agents and additives are optionally added, and further, if necessary, a solvent and a diluent. It is possible to prepare a resin composition containing at least the thermoplastic resin forming the first and second thermoplastic resin layers according to the present invention as a main component of the vehicle by adding the above components and thoroughly kneading. In the above, examples of colorants such as dyes and pigments include azo dyes and pigments, anthraquinone dyes and pigments, phthalocyanine dyes and pigments, quinacridone dyes and pigments, and dioxazine dyes.
Pigments, other organic dyes and pigments, yellow lead, chrome bar
It is possible to use inorganic pigments such as million, dark blue, red pattern, etc. Of course, in the present invention, the above white colorant may be used.

In the present invention, the first and second white resin layers, the black resin layer, the first and second thermoplastic resin layers, etc., which compose the above-mentioned multilayer laminated resin film according to the present invention, are used. In each resin composition to be formed, examples of the above-mentioned plastic compounding agents and additives include, for example, lubricants, crosslinking agents, antioxidants, ultraviolet absorbers, light stabilizers, fillers, reinforcing agents, antistatic agents, difficult agents. A flame retardant, a flameproofing agent, a foaming agent, an antifungal agent, a pigment, a dye, a dispersant, a surfactant, an antiblocking agent, etc. can be used, and a modifying resin or the like can also be used. In addition, the addition amount is from a very small amount to several tens wt%, depending on the purpose.
It can be added arbitrarily.

Further, in the above, as the compounding agent, the additive or the like, specifically, a lubricant which itself has lubricity and which hardly migrates in the resin can be used.
For example, waxes such as liquid paraffin, white petrolatum, petroleum wax, microcrystalline wax, montan wax, polyethylene wax, etc., having 8 carbon atoms.
22 to 22 higher fatty acid, or higher fatty acid such as higher fatty acid aluminum, higher fatty acid calcium, higher fatty acid magnesium, higher fatty acid zinc and higher fatty acid lithium, or a metal salt thereof, a straight chain aliphatic monovalent alcohol having 8 to 18 carbon atoms Aliphatic alcohols such as glycol, glycerin, sorbitol, propylene glycol, pentaerythritol and triethylene glycol, higher fatty acids having 4 to 22 carbon atoms and 8 to 18 carbon atoms Esters with straight-chain aliphatic monovalent alcohol, acetyl butyl citrate, di-2 ethyl-hexyl adipate, n-hexyl azelaic acid, ethanediole montanic acid ester, poly (1.3
-Butanediol-adipic acid) ester, methyl acetylricinoleate, poly (1.3-butylene glycol),
1.4-butylene glycol, octyl alcohol adipate), esters of sugar-wax-sugar alcohol and fatty acid, hydrogenated edible oil and fat, castor oil, sperm acetyl wax, acetylated monoglyceride sugar Glycerides, ethylene bis fatty acid amides having 16 to 18 carbon atoms, for example, ethylene bis oleyl amide, higher fatty acid amides having 8 to 22 carbon atoms, stearyl erucamide, erucic acid amide, oleyl palmitoamide, etc. One or two kinds of fatty acid amides and others, silicone oil yarosin such as methylhydrodiene polysiloxane, dimethyl polysiloxane, methylphenyl polysiloxane, polyoxyalkylene / dimethyl polysiloxane and glycerin ester of maleic acid modified rosin. Can use more . In the present invention, among the above-mentioned lubricants, in particular, erucic acid amide, ethylenebisoleylamide, stearic acid amide, oleic acid amide, methylenebisstearic acid amide, etc., have lubricity themselves, It is an extremely effective material. The amount of the above lubricant added is preferably 0.08% by weight to 10.0% by weight based on 100 parts by weight of the thermoplastic resin.

Further, in the present invention, in addition to the above, for example, oxides of aluminum oxide, magnesium oxide, silica, calcium oxide, titanium oxide, zinc oxide, etc., and hydroxides of aluminum hydroxide, magnesium hydroxide, calcium hydroxide, etc. Substances, carbonates such as magnesium carbonate and calcium carbonate, sulfates such as calcium sulfate and barium sulfate,
Silicates such as magnesium silicate, aluminum silicate, calcium silicate, and aluminosilicate, and other inorganic compound-based antiblocking agents such as kaolin, talc, and diatomaceous earth, or high-density polyethylene, molecular weight 30
One kind of organic compound type anti-blocking agent consisting of fine powder of 0000 or more ultra high molecular weight polyethylene, polypropylene, polycarbonate, polyamide, polyester, melamine resin, diallyl phthalate resin, acrylic resin, etc. Or 2 or more types can be added. The addition amount is preferably about 0.01 to 3% by weight with respect to 100 parts by weight of the resin.

Next, in the present invention, a method for producing a multilayer laminated resin film according to the present invention by using each of the above resin compositions will be described. In the present invention, first, at least a thermoplastic resin is used. Two resin compositions are produced by preparing a resin composition containing at least a thermoplastic resin and a black colorant, and a resin composition containing at least two colorants. The composition is used and co-extruded using, for example, a T-die coextrusion machine, an inflation coextrusion machine, etc., and the first layer contains at least a thermoplastic resin and a white colorant. A first white resin layer made of a resin composition, a second layer made of a resin composition containing at least a thermoplastic resin and a black colorant, and a third layer made of at least a thermoplastic resin and a white type With colorants It is possible to manufacture a multilayer laminated resin film of the two-kind three-layer according to the present invention having the structure in which three-layer co-extrusion lamination by free resin composition in the order of the second white resin layer.

Alternatively, in the present invention, similarly to the above, first, a resin composition containing at least a thermoplastic resin and a white colorant, and a resin composition containing at least a thermoplastic resin and a black colorant, And, a resin composition containing at least a thermoplastic resin as a main component of a vehicle is prepared to produce three kinds of resin compositions, and then the three kinds of resin compositions are used. Co-extrusion using a die co-extrusion machine, an inflation co-extrusion machine, etc., the first layer is a first white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant, Two layers are a black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant, and a third layer is a second white resin made of a resin composition containing at least a thermoplastic resin and a white colorant. Layers and A multi-layered resin of three types and four layers according to the present invention, in which the layers are formed by co-extruding and laminating four layers of a first thermoplastic resin layer in the order of a resin composition containing at least a thermoplastic resin as a main component of a vehicle. A film can be produced.

Further, in the present invention, as in the above,
First, a resin composition containing at least a thermoplastic resin and a white colorant, a resin composition containing at least a thermoplastic resin and a black colorant, and a resin containing at least a thermoplastic resin as a main component of a vehicle. The composition is prepared to produce three resin compositions, and then the three resin compositions are used, which are, for example, using a T-die coextrusion machine, an inflation coextrusion machine, or the like. Coextrusion molding, the first layer is a second thermoplastic resin layer of a resin composition containing at least a thermoplastic resin as a main component of the vehicle, the second layer,
A first white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant; a third layer a black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant; The layer is a second white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant, and the fifth layer is made of a resin composition containing at least a thermoplastic resin as a main component of a vehicle. It is possible to produce a multi-layer laminated resin film of 5 layers of 3 types according to the present invention, which has a constitution in which 5 thermoplastic resin layers are coextruded and laminated in order. The above examples are examples of the method for producing a multilayer laminated resin film according to the present invention.
The present invention is not limited to this.
Further, in the present invention, in producing the multilayer laminated resin film according to the present invention, other materials are further used depending on the purpose of use, application, etc., which are optionally coextruded and laminated into various forms. It is possible to design and manufacture a multilayer laminated resin film composed of

Thus, in the present invention, the light-shielding or light-shielding layer consisting of the two layers of the white resin layer and the black resin layer or the two layers of the white resin layer and the gray resin layer as described above. The one layer absorbs sunlight and the other layer reflects or diffuses sunlight, and the synergistic effect of the two layers allows sunlight or fluorescent light from the sun or fluorescent lamps. The effect of completely blocking or blocking the permeation of light and further preventing the photodegradation of the contents filled and packed in the packaging bag, such as decomposition or deterioration, fading, and the like. Furthermore,
In the present invention, one of the white resin layers described above also has a function as a base layer or the like of the print pattern layer provided directly or indirectly thereon, and thus the characters, figures, and the like that make up the print pattern layer, This has the effect of making the printed image of symbols, pictures, etc. even clearer and reproducing or revealing a beautiful printed pattern. Heat sheet to form parts
The function and effect of having the function as a flexible resin layer can be achieved. Further, in the present invention, the above-mentioned thermoplastic resin layer constitutes a transparent or semitransparent or opaque layer, and protects or conceals the above-mentioned white resin layer or black resin layer and the thermoplasticity thereof. One of the resin layers will also have a function such as a base layer of a print pattern layer provided directly or indirectly on the resin layer, and the characters, figures, symbols, and patterns forming the print pattern layer,
This has the effect of making the printed image of other parts clearer and reproducing or revealing a beautiful printed pattern. The function and effect as a heat sealable resin layer to be formed can be achieved.

Next, in the present invention, the thickness of the multilayer laminated resin film according to the present invention is about 9 μm to 120 μm.
The μm position is preferably about 10 μm to 60 μm. Thus, in the above-mentioned multilayer laminated resin film, the thickness of each layer constituting the multilayer laminated resin film is, first, as the first and second white resin layers, 3 μm to 40 μm, preferably, 4 μm to 30 μm,
The thickness of the black resin layer is 2 μm to 40 μm, preferably about 3 μm to 30 μm, and the thickness of the first and second thermoplastic resin layers is 3 μm to 40 μm, preferably 4 μm.
It is preferable that it is in the range of about 30 μm. In the above, as the film thickness of each layer constituting the multilayer laminated resin film according to the present invention, first, when the film thickness of the first and second white resin layers is less than 3 μm, the black resin layer is hidden. It becomes difficult to reduce the appearance, aesthetics and the like, and when a printed pattern layer or the like is provided on the white resin layer, the gradation or color tone of the printed pattern layer or the like is affected, Furthermore, it is not preferable because the function as a heat-sealable resin layer and the like is deteriorated, and when the film thickness exceeds 40 μm, the black resin layer has high concealing property, but the total thickness is It is not preferable for the reason that it may become large and may have a large impact on the environment as packaging dust and the like, and if the thickness of the black resin layer is less than 2 μm, the light-shielding property or the light-shielding property is The function as a layer etc. deteriorates Furthermore, not preferable from the reasons such that there may occur a problem that largely depends on the thickness unevenness, and if the film thickness exceeds 40 [mu] m,
Although the light-shielding property or the light-shielding property is increased, it is not preferable because it is difficult to set and select a masking resin layer or a white resin layer that masks the light-shielding property, and further, a film of a thermoplastic resin layer. If the thickness is less than 3 μm, it becomes difficult to exert functions such as protection and concealment, and
It is not preferable because the appearance and aesthetics are deteriorated and the function as a heat-sealable resin layer is also deteriorated. When the film thickness exceeds 40 μm, the total layer thickness becomes large. Therefore, it is not preferable because it is not preferable for environmental protection when it is discarded.

As is clear from the above description, the multilayer laminated resin film according to the present invention has strength and the like and is excellent in various physical properties such as weather resistance, heat resistance, water resistance, and the like. It has excellent heat and light shielding properties, and also has excellent heat sealing properties, suitability for filling and packaging of contents, suitability for storage, etc. Furthermore, it produces toxic substances when incinerated and disposed of after use. It is extremely excellent in disposal suitability, environmental suitability, etc. In addition, the multilayer laminated resin film according to the present invention has an advantage that it does not react with a metal (foreign substance) detector or the like and facilitates inspection of a metal piece (foreign substance). Thus, the multilayer laminated resin film according to the present invention uses the same as a light-shielding or light-shielding material or a heat-sealing resin layer, and a base film such as another plastic film, Optionally laminated with one or more kinds of various base materials such as a paper base material, a barrier base material which prevents permeation of oxygen gas or water vapor, cellophane, woven or non-woven fabric, glass plate, etc., It is possible to manufacture a laminated material having various forms and apply the laminated material to a packaging material constituting a packaging bag or the like and other uses.

The laminate material as a packaging material using the above-mentioned multilayer laminated resin film according to the present invention will be described in more detail. First, as the method for producing the above laminated material, for example, a primer layer or a laminer layer is used. A dry laminate laminating method for laminating a desired base material such as a plastic film through an adhesive layer for a sheet, or the like, or
Through a lamination method such as an extrusion lamination laminating method in which various resins and the like are melt extruded and a desired base material is laminated arbitrarily through a primer agent layer or an anchor coating agent layer, etc. Laminated materials having various forms can be manufactured.

A specific example of the method for producing the above laminated material will be described. The specific example of the above dry laminate laminating method is as shown in FIGS. To illustrate a specific example of the laminate laminating method, although not shown, first, in the same manner as shown in FIGS. 4 and 5 described above, a desired character, After forming a printed pattern layer comprising symbols, pictures, figures, etc., an anchor coating agent is coated on the surface of the substrate film containing the printed pattern layer by a gravure roll coating method or the like. To form an anchor coating agent layer, and then, on the surface of the anchor coating agent layer,
The above-mentioned multilayer laminated resin film shown in FIG. 1 is overlaid with the surfaces of the first white resin layers constituting the multilayer resin film facing each other, and then, between the both layers, for example, a heat-melting resin such as low density polyethylene. While extruding, the both are laminated via the hot-melt extruded resin layer or the like to produce a laminated material using the multilayer laminated resin film according to the present invention. Alternatively, although not shown in the present invention, as shown in FIG. 5 described above, first, a desired character, symbol, or pattern is formed on the back surface formed by corona treatment or the like of the desired base film.
After forming a printed pattern layer comprising figures, etc., an anchor coating agent is coated on the surface of the base film containing the printed pattern layer by the gravure roll coating method or the like in the same manner as above. To form an anchor-coating agent layer, and then a barrier substrate is placed on the surface of the anchor-coating agent layer so as to face it, and then, between the two layers, for example, a low While extruding a hot-melt resin such as density polyethylene, both are laminated via the hot-melt extruded resin layer, and after that,
On the surface of the barrier substrate laminated as described above, an anchor coating agent is further coated by a gravure roll coating method or the like to form an anchor coating agent layer in the same manner as above. Then, the multi-layer laminated resin film shown in FIG. 1 is superposed on the surface of the anchor-coating agent layer so that the surface of the first white resin layer constituting the multi-layer laminated resin film is opposed to each other, and then both of them. In the same manner as described above, for example, a multilayer resin film according to the present invention is used by laminating both layers through a hot-melt extruded resin layer while extruding a hot-melt resin such as low-density polyethylene. The laminated material can be manufactured. The exemplification described above is only one of them, and the present invention is not limited to this.

In the production of a laminated material as a packaging material using the above-mentioned multilayer laminated resin film according to the present invention, a base film such as another plastic film laminated on the multilayer laminated resin film according to the present invention, or a paper base. Materials, barrier materials that prevent the permeation of oxygen gas or water vapor, cellophane, woven or non-woven fabrics, glass plates, and other various base materials will be described. The base material film has excellent properties in mechanical, physical, chemical, etc. as a basic material of the laminated material, and particularly has strength and toughness and heat resistance. It is possible to use a film or sheet of a resin having properties, specifically, for example, polyester resin, polyamide resin, polyaramid. Resins, polyolefin resins, polycarbonate - Bonnet - DOO resins, polystyrene resins, polyacetal - Le resins, fluorine-based resins, tough resin other such film or sheet - DOO, may use other like. As the resin film or sheet, either an unstretched film or a stretched film uniaxially or biaxially stretched can be used. The thickness of the film is 5
It is desirable that the thickness is about 100 μm to 100 μm, preferably about 10 μm to 50 μm. In the present invention, the above-described base film is subjected to front printing or back printing by a usual printing method with desired printing patterns such as characters, figures, symbols, pictures and patterns. It may have been done.

Further, in the present invention, as the base material constituting the above-mentioned laminated material, for example, various paper base materials constituting the paper layer can be used. Specifically, in the present invention, As the paper base material, it has shapeability, bending resistance, rigidity, etc., and is, for example, a strongly sized exposed or unexposed paper base material, or pure white roll paper, kraft paper, paperboard. Paper base materials such as processed paper, and the like can be used. In the above, as the paper substrate constituting the paper layer, those having a basis weight of about 80~600g / m ² position, preferably, it is desirable to use a basis weight of about 100~450g / m ² position. Of course, in the present invention, the paper base material constituting the paper layer and the above-mentioned various resin films or sheets as the base material film can be used in combination.

Further, in the present invention, as the base material constituting the above-mentioned laminated material, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene having a barrier property against water vapor, water and the like. Examples of the film or sheet of a resin such as polypropylene and ethylene-propylene copolymer, or a barrier material that prevents the permeation of oxygen gas, water vapor, and the like include, for example, polyvinylidene chloride resin and polyvinyl alcohol. Resin,
Saponified ethylene-vinyl acetate copolymer, MXD nylon 6 resin, other barrier resin film or sheet, aluminum foil or aluminum vapor deposited resin film, vapor deposited film of inorganic oxide such as silicon oxide and aluminum oxide ( (By physical vapor deposition or chemical vapor deposition)
A resin film having, a colorant such as a pigment to a resin, and a film or a sheet of various colored resins having a light-shielding property obtained by kneading a desired additive and kneading to form a film.
, Etc. can be used. These materials can be used alone or in combination of two or more. As the thickness of the above film or sheet,
Although it is optional, it is usually preferably about 5 μm to 300 μm, more preferably about 10 μm to 100 μm.

In the present invention, usually, when the packaging bag made of the above-mentioned laminated material is applied to various uses, it is subjected to severe conditions both physically and chemically. Therefore, strict conditions are required for the above-mentioned laminated material, deformation prevention strength, drop impact strength, pinhole resistance, heat resistance,
Various conditions such as hermeticity, quality maintenance, workability, hygiene, etc. are required. Therefore, in the present invention, a base material satisfying the above various conditions is arbitrarily selected and used. Specifically, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer-resin , Ethylene-ethyl acrylate copolymer,
Ethylene-acrylic acid or methacrylic acid copolymer, methylpentene polymer, polybutene-based resin, polyvinyl chloride-based resin, polyvinyl acetate-based resin, polyvinylidene chloride-based resin, vinyl chloride-vinylidene chloride copolymer, poly (meta ) Acrylic resin, polyacrylonitrile resin, polystyrene resin, acrylonitrile-styrene copolymer (AS resin), acrylonitrile-butadiene-styrene copolymer (ABS resin), polyester resin, polyamide resin, polycarbonate -Bone resin,
Polyvinyl alcohol-based resin, saponified ethylene-vinyl acetate copolymer, fluorine-based resin, diene-based resin, polyacetal-based resin, polyurethane-based resin, nitrocellulose, etc. -It is possible to use it by arbitrarily selecting from the following. In addition, for example, a film such as cellophane, synthetic paper, or the like can be used. In the present invention, the film or sheet may be unstretched, uniaxially or biaxially stretched, or the like. The thickness is arbitrary, but it can be selected from the range of several μm to 300 μm and used. Furthermore, in the present invention, the film or sheet is extruded film,
The film may be any film such as an inflation film and a coating film.

Next, in the present invention, the laminate adhesive layer constituting the laminated material will be explained. As the laminate adhesive constituting the laminate adhesive layer, for example, polyacetic acid can be used. Vinyl adhesives, homopolymers such as ethyl, butyl, and 2-ethylhexyl acrylates, or polyacrylic ester adhesives composed of copolymers of these with methyl methacrylate, acrylonitrile, styrene, etc., cyanoacryl -Adhesive adhesive, ethylene copolymer adhesive consisting of a copolymer of ethylene and a monomer such as vinyl acetate, ethyl acrylate, acrylic acid, methacrylic acid, etc., cellulose adhesive,
Polyester adhesive, polyamide adhesive, polyimide adhesive, urea resin or melamine resin amino resin adhesive, phenol resin adhesive, epoxy adhesive, polyurethane adhesive, reactive type ( (Meth) acrylic adhesive, chloroprene rubber, nitrile rubber, styrene-butadiene rubber or other rubber adhesive, silicone adhesive, alkali metal silicate, low melting glass or other inorganic adhesive, etc. It is possible to use an adhesive such as. The composition system of the above-mentioned adhesive may be any composition form such as an aqueous type, a solution type, an emulsion type, a dispersion type, etc., and its properties are film sheet, powder, solid, etc. Any form may be used, and the adhesion mechanism may be any form such as a chemical reaction type, a solvent volatilization type, a heat melting type, and a heat pressure type. The adhesive may be applied by a coating method such as a roll coating method, a gravure roll coating method, a kiss coating method, or the like, or a printing method, The coating amount is preferably about 0.1 to 10 g / m ² (dry state).

Next, in the present invention, the anchor coating agent layer constituting the laminated material will be described. Examples of the anchor coating agent constituting the anchor coating agent layer include, for example, alkyl titanate. Organotitanium-based, isocyanate-based, polyethyleneimine-based, polyptadiene-based,
Various other aqueous or oily anchor coating agents can be used. The above anchor coating agents are, for example, roll coat, gravure roll coat, kiss coat.
Coating can be performed by using a coating method such as coating, etc.
It is preferably about 5 g / m ² (dry state).

Examples of the melt-extruded resin layer in the above-mentioned extrusion-laminate laminating method include polyethylene resin, polypropylene resin, acid-modified polyethylene resin, acid-modified polypropylene resin, ethylene-acrylic acid or methacrylic acid. Such as copolymers, sarolin-based resins, ethylene-vinyl acetate copolymers, polyvinyl acetate-based resins, ethylene-acrylic acid ester or methacrylic acid ester copolymers, polystyrene-based resins, polyvinyl chloride-based resins, etc. One type or two or more types of thermoplastic resins can be used. In the extrusion laminator method described above, in order to obtain a stronger adhesive strength, the layers can be laminated, for example, via the anchor coating agent layer such as the anchor coating agent. .

In the present invention, a desired printed pattern layer can be formed between any of the layers constituting the above laminated material. The above-mentioned printed pattern layer contains, as a main component, one or more ordinary ink vehicles, and if necessary, a plasticizer, a stabilizer, an antioxidant, a light stabilizer, and an ultraviolet ray. Absorbent, curing agent, crosslinking agent,
One or more kinds of additives such as lubricants, antistatic agents, fillers, etc. are optionally added, and further colorants such as dyes and pigments are added, and they are sufficiently kneaded with a solvent, a diluent and the like. To prepare an ink composition, and then using the ink composition, for example, a printing method such as gravure printing, offset printing, letterpress printing, screen printing, transfer printing, flexographic printing, etc. On the coating thin film of
A desired printed pattern composed of figures, symbols, patterns and the like can be printed to form the printed pattern layer according to the present invention.

In the present invention, the primer layer is, for example, a polyurethane resin, a polyester resin, a polyamide resin, an epoxy resin or a phenol resin.
Resin, (meth) acrylic resin, polyvinyl acetate resin, polyolefin resin such as polyethylene aliha polypropylene or its copolymer or modified resin,
The primer agent layer can be formed using a resin composition containing a cellulosic resin or the like as the main component of the vehicle. In the present invention, for example, roll roll
Primer coater by coating using a coating method such as a coating, gravure roll coat, kiss coat, etc.
A coating agent layer can be formed, and the coating amount is preferably about 0.1 to 10 g / m ² (dry state). Further, in the present invention, when performing the above-mentioned lamination, the film can be subjected to pretreatment such as corona treatment and ozone treatment, if necessary.

Next, in the present invention, a description will be given of a packaging bag in which a laminated material produced by using the multilayer laminated resin film according to the present invention is used, and the bag is produced.
As the bag-making or box-making method for producing the packaging bag, for example, in the case where the packaging bag is a soft packaging bag made of a plastic film or the like, the laminated material produced by the method as described above is used,
The inner surface of the first or second white resin layer as the heat-sealable resin layer or the surfaces of the first or second thermoplastic resin layers are made to face each other, and they are folded, or Put the two pieces on top of each other, and then touch the peripheral edge.
The packaging bag can be manufactured by providing a sealing portion by tossing. Thus, as the bag-making method, the above laminated material is bent with the surfaces of its inner layers facing each other, or the two are superposed, and the peripheral end portion of the outer periphery thereof is, for example, a side surface sheet. Type, two-way seal type, three-way seal type, four-way seal type, envelope-sealed seal type, seal-sealed seal type (pyro-seal type), pleated seal type Various types of packaging bags according to the present invention can be manufactured by heat-sealing in the form of a flat-sealed seal, a square-bottomed seal, or the like. In addition, for example, a self-supporting packaging bag (standing pouch) or the like can be manufactured. Furthermore, in the present invention, a tubing using the above laminated material is used.
A tube container or the like can also be manufactured. In the above,
As the method of the toe seal, for example, a known method such as a bar seal, a rotary roll seal, a belt seal, an impulse seal, a high frequency seal, an ultrasonic seal or the like is used. You can In the present invention, the packaging bag as described above includes, for example, one-piece type, two-piece type,
Other spouts or zipper for opening / closing can be optionally attached.

Next, in the case of a liquid-filled paper container containing a paper base material as a packaging bag, for example, a blank for manufacturing a laminated material in which paper base materials are laminated as a laminated material and manufacturing a desired paper container from the laminated material. Producing a plate, and then making a box, bottom, head, etc. using the blank plate to produce, for example, a brick-type, flat-type, or gel-top type liquid paper container. You can Further, the shape thereof can be manufactured in any shape such as a rectangular container and a cylindrical paper can such as a round shape.

In the present invention, the packaging bag produced as described above includes, for example, food and drink, fruit juice, juice, drinking water, liquor, cooked food, seafood paste, frozen food, meat product,
The contents of various food and drink such as cooked foods, rice cakes, liquid soaps, seasonings, etc., liquid detergents, cosmetics, chemical products, and other articles can be filled and packaged. Thus, particularly in the present invention, for example, soy sauce, sauce,
Liquid food and drink containing water, etc. such as liquid sachets for filling and packaging soups, soft packaging bags for packaging and packing fresh confectionery, and soft packaging bags for packaging and packing boiled or retort foods, etc. It is useful as a packaging container for filling and packaging etc. In the present invention, for example, the contents of food and drink, etc. are filled from the opening of the three-way seal type packaging bag produced above, and then the upper opening is heat-sealed. Then, the upper seal portion and the like are formed, and further, if necessary, for example, boil treatment, retort treatment and the like can be performed to manufacture packaged products in various forms. Incidentally, it goes without saying that the present invention is not limited to the packaging bag exemplified above, and depending on its purpose, use, etc.,
It goes without saying that various types of packaging containers such as flexible packaging bags, liquid paper containers, paper cans and the like can be manufactured.

Thus, in the present invention, the packaged product produced as described above has the multilayer laminated resin film according to the present invention particularly excellent in light-shielding property or light-shielding property, for example, the sun or the sun using a fluorescent lamp. Since it is possible to prevent the transmission of light, fluorescence, etc., and prevent the contents from decomposing or degrading, or causing photodegradation such as fading, etc., for example, as the contents,
In the case of foods and drinks containing oils and fats, there is an advantage that oxidation of oil and fat components and the like due to transmission of sunlight or fluorescence can be prevented. In particular, frozen foods and drinks are usually handled by mass retailers such as supermarkets, and in this case, they are placed and sold on display shelves that receive much fluorescence from fluorescent lamps. It is the actual situation. Therefore,
Frozen foods and drinks sold under the above environment have a fat and oil component that is greatly affected by light having a wavelength of 500 nm or less and has a maximum absorption of visible light in the yellow band around 550 nm. In addition, there is a possibility that the oxidation reaction is accelerated by the influence of fluorescence from a fluorescent lamp or the like, and the contents are decomposed or deteriorated. However, as described above, the multilayer laminated resin film according to the present invention is particularly excellent in light-shielding property or light-shielding property, for example,
Prevents the penetration of sunlight or fluorescence from the sun or fluorescent lamps, causing the contents to decompose or deteriorate, or
Frozen foods and drinks using a packaging bag made from a laminated material produced by using the multilayer laminated resin film according to the present invention, since it is possible to prevent light deterioration such as fading and others. Is handled by supermarkets and other mass retailers, placed on display shelves that receive a lot of fluorescent light from fluorescent lamps, etc. It is possible to prevent the reaction from being accelerated and prevent the contents from being decomposed or altered. Further, in the present invention, since the packaging product manufactured above does not use aluminum foil or aluminum vapor-deposited film, a metal (foreign substance) detector is used, and a metal (foreign substance) is detected by the metal (foreign substance) detector. It has the advantage that detection is also possible.

[0046]

EXAMPLES Next, the present invention will be described more specifically by way of examples. Example 1 (1). First, the following resin compositions (a) to (c) were prepared. (I). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 min] 85.0 parts by weight, titanium oxide 15.0 parts by weight as a white pigment, and synthetic silica 0.5.
By weight, 0.05 part by weight of erucic acid amide and 0.05 part by weight of ethylenebisoleylamide were sufficiently kneaded to prepare a resin composition forming the first layer. (B). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 min] 98.5 parts by weight, carbon black as a black pigment 1.5 parts by weight, and erucic acid amide 0.05 parts by weight are sufficiently kneaded to form the second layer. Was prepared. (C). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 min] 85.0 parts by weight, titanium oxide 15.0 parts by weight as a white pigment, and synthetic silica 0.5.
By weight, 0.05 part by weight of erucic acid amide and 0.05 part by weight of ethylenebisoleylamide were sufficiently kneaded to prepare a resin composition forming the third layer. (2). Next, using the resin compositions of (a) to (c) prepared above, a layer of the resin composition of (a) of 20 μm was formed using an inflation coextruder.
An unstretched multilayer laminated resin film consisting of three layers was produced by coextruding a layer of the resin composition of (b) to 10 μm and a layer of the resin composition of (c) to 20 μm. The multilayer laminated resin film produced above is milky white and has excellent aesthetics when visually recognized from the appearance, and also has sufficient light-shielding property or light-shielding property, hardly transmitting each wavelength due to oxidation of fats and oils, and extremely good. Met.

Reference Example 1 (1). An ordinary gravure ink composition was used on the corona-treated surface of a biaxially stretched nylon 6 film having a thickness of 15 μm to form a desired printed pattern by a gravure printing method, and then the entire surface including the printed pattern was coated with 2 A liquid-curable polyurethane adhesive for laminate was coated to a thickness of 4.0 g / m ² (dry state) using a gravure roll coat method to form an adhesive layer for laminate. Then, the multilayer laminated resin film produced in the above-mentioned Example 1 was superposed on the adhesive layer surface for laminate with the surface of the corona-treated surface of the first white resin layer facing each other, and thereafter, Both of them were dry laminated and laminated to produce a laminated material. (2). Next, two sheets of the laminated material produced as described above are prepared, and the surfaces of the second white resin layers are opposed to each other and overlapped,
After that, the end portion around the outer periphery thereof was three-way heat-sealed to form a seal portion, and a three-way seal type soft packaging bag having an opening portion above was manufactured. The three-way seal type soft packaging bag produced above is packed and packed with quick-frozen authentic stir-fried rice from its opening, and then the end of the opening is heat-sealed to the upper side. A frozen packaging product was manufactured by forming a seal part. The frozen packaging products produced above are
Even if the product was placed on a display shelf that receives a lot of fluorescence from fluorescent lamps at a mass retailer such as a parcel, the contents were not decomposed or altered. In addition, the frozen packaged product manufactured as described above was also capable of being inspected for foreign matter with a metal detector.

Example 2 (1). First, the following resin compositions (a) to (c) were prepared. (I). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 min] 85.0 parts by weight, titanium oxide 15.0 parts by weight as a white pigment, and synthetic silica 0.5.
By weight, 0.05 part by weight of erucic acid amide and 0.05 part by weight of ethylenebisoleylamide were sufficiently kneaded to prepare a resin composition forming the first layer. (B). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 min] 73.5 parts by weight, carbon black 1.5 parts by weight as a black pigment, titanium oxide 25.0 parts by weight as a white pigment, and erucic acid amide 0.0.
5 parts by weight was sufficiently kneaded to prepare a resin composition forming the second layer. (C). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 min] 85.0 parts by weight, titanium oxide 15.0 parts by weight as a white pigment, and synthetic silica 0.5.
By weight, 0.05 part by weight of erucic acid amide and 0.05 part by weight of ethylenebisoleylamide were sufficiently kneaded to prepare a resin composition forming the third layer. (2). Next, using the resin compositions of (a) to (c) prepared above, a layer of the resin composition of (a) of 20 μm was formed using an inflation coextruder.
An unstretched multilayer laminated resin film consisting of three layers was produced by coextruding a layer of the resin composition of (b) to 10 μm and a layer of the resin composition of (c) to 20 μm. The multilayer laminated resin film produced above is milky white and has excellent aesthetics when visually recognized from the appearance, and also has sufficient light-shielding property or light-shielding property, hardly transmitting each wavelength due to oxidation of fats and oils, and extremely good. Met.

Reference Example 2 (1). Biaxially stretched polyethylene terephthalate with a thickness of 12 μm
On the corona-treated surface of the rate film, a normal gravure
Using ink composition, desired printing by gravure printing method
After forming the pattern, harden it with 2 liquids on the entire surface including the printed pattern.
-Type polyurethane adhesive for laminator
-Thickness of 4.0 g / m using the rukot method ²(Dry state)
To form an adhesive layer for laminate, and then
Then, on the adhesive layer surface for laminating, in the above-mentioned Example 2,
The manufactured multilayer laminated resin film is used as a white layer for the first layer.
Overlap the corona-treated surfaces of the fat layers so that they face each other.
After that, dry laminating both of them and stacking them,
The wood was manufactured. (2). Next, prepare 2 sheets of laminated material manufactured above
Then, the surfaces of the second white resin layer are opposed to each other and overlapped,
After that, the edges around the outer circumference are three-way heat-sealed.
A three-way seal that forms a seal and has an opening at the top.
-A le-type flexible packaging bag was produced. Three-way type manufactured above
-A potato chip from the opening in a le-shaped flexible packaging bag.
Fill and wrap the box, and then heat the end of the opening.
Seal to form the upper seal to produce a packaged product.
It was The packaged products manufactured above can be sold to supermarkets and other mass retailers.
Even if it is placed and sold, the contents are not decomposed or altered.
I couldn't. In addition, the frozen packaging products manufactured above are
Foreign matter inspection was also possible with a metal detector.

Example 3 (1). First, the following resin compositions (a) to (c) were prepared. (I). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 85.0 parts by weight and titanium oxide 1 as a white pigment
5.0 parts by weight, 0.5 parts by weight of synthetic silica, 0.05 parts by weight of erucic acid amide, and 0.05 parts by weight of ethylenebisoleylamide are sufficiently kneaded to form the first layer. A composition was prepared. (B). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 98.5 parts by weight, 1.5 parts by weight of carbon black as a black pigment, and 0.05 parts by weight of erucic acid amide are sufficiently kneaded to prepare a resin composition forming the second layer. did. (C). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 85.0 parts by weight and titanium oxide 1 as a white pigment
5.0 parts by weight, 0.5 parts by weight of synthetic silica, 0.05 parts by weight of erucic acid amide, and 0.05 parts by weight of ethylenebisoleylamide are sufficiently kneaded to form the third layer resin. A composition was prepared. (2). Next, using the resin compositions of (a) to (c) prepared above, a layer of the resin composition of (a) of 20 μm was formed using an inflation coextruder.
An unstretched multilayer laminated resin film consisting of three layers was produced by coextruding a layer of the resin composition of (b) to 10 μm and a layer of the resin composition of (c) to 20 μm. The multilayer laminated resin film produced above is milky white and has excellent aesthetics when visually recognized from the appearance, and also has sufficient light-shielding property or light-shielding property, hardly transmitting each wavelength due to oxidation of fats and oils, and extremely good. Met.

Reference Example 3 (1). An ordinary gravure ink composition was used on the corona-treated surface of a biaxially stretched nylon 6 film having a thickness of 15 μm to form a desired printed pattern by a gravure printing method, and then the entire surface including the printed pattern was coated with 2 A liquid-curable polyurethane adhesive for laminate was coated to a thickness of 4.0 g / m ² (dry state) using a gravure roll coat method to form an adhesive layer for laminate. Then, the multilayer laminated resin film produced in the above-mentioned Example 3 was superposed on the adhesive layer surface for lamination, with the surface of the corona-treated surface of the white resin layer of the first layer facing each other, and thereafter, Both of them were dry laminated and laminated to produce a laminated material. (2). Next, two sheets of the laminated material produced as described above are prepared, and the surfaces of the second white resin layers are opposed to each other and overlapped,
After that, the end portion around the outer periphery thereof was three-way heat-sealed to form a seal portion, and a three-way seal type soft packaging bag having an opening portion above was manufactured. The three-way seal type soft packaging bag produced above was filled and packaged with quick-frozen chicken rice from its opening, and then the end of the opening was heat-sealed to seal the upper part. -Frozen packaged products were manufactured by forming a loop portion. The frozen packaging products produced above are
Even if the product was placed on a display shelf that receives a lot of fluorescence from fluorescent lamps at a mass retailer such as a parcel, the contents were not decomposed or altered. In addition, the frozen packaged product manufactured as described above was also capable of being inspected for foreign matter with a metal detector.

Example 4 (1). First, the following resin compositions (a) to (c) were prepared. (I). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 85.0 parts by weight and titanium oxide 1 as a white pigment
5.0 parts by weight, 0.5 parts by weight of synthetic silica, 0.05 parts by weight of erucic acid amide, and 0.05 parts by weight of ethylenebisoleylamide are sufficiently kneaded to form the first layer. A composition was prepared. (B). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 73.5 parts by weight, carbon black 1.5 parts by weight as a black pigment, and titanium oxide 25.0 as a white pigment.
By weight, 0.05 part by weight of erucic acid amide was sufficiently kneaded to prepare a resin composition forming the second layer. (C). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 85.0 parts by weight and titanium oxide 1 as a white pigment
5.0 parts by weight, 0.5 parts by weight of synthetic silica, 0.05 parts by weight of erucic acid amide, and 0.05 parts by weight of ethylenebisoleylamide are sufficiently kneaded to form the third layer resin. A composition was prepared. (2). Next, using the resin compositions of (a) to (c) prepared above, a layer of the resin composition of (a) of 20 μm was formed using an inflation coextruder.
An unstretched multilayer laminated resin film consisting of three layers was produced by coextruding a layer of the resin composition of (b) to 10 μm and a layer of the resin composition of (c) to 20 μm. The multilayer laminated resin film produced above is milky white and has excellent aesthetics when visually recognized from the appearance, and also has sufficient light-shielding property or light-shielding property, hardly transmitting each wavelength due to oxidation of fats and oils, and extremely good. Met.

Reference Example 4 (1). An ordinary gravure ink composition was used to form a desired printed pattern on the corona-treated surface of a biaxially stretched nylon 6 film having a thickness of 15 μm by a gravure printing method, and then the entire surface including the printed pattern was coated with 2 A liquid curing type polyurethane adhesive for laminate was coated to a thickness of 4.0 g / m ² (dry state) using a gravure roll coat method to form an adhesive layer for laminate. Then, the multilayer laminated resin film produced in the above Example 4 was superposed on the adhesive layer surface for laminating with the surface of the corona-treated surface of the white resin layer of the first layer facing each other, and thereafter, Both of them were dry laminated and laminated to produce a laminated material. (2). Next, two sheets of the laminated material produced as described above are prepared, and the surfaces of the second white resin layers are opposed to each other and overlapped,
After that, the end portion around the outer periphery thereof was three-way heat-sealed to form a seal portion, and a three-way seal type soft packaging bag having an opening portion above was manufactured. The three-way seal type soft packaging bag produced above is filled and packed with a curry from its opening, and then the opening is heat-sealed to form an upper sealing part. To produce a packaged semi-finished product, and then put the packaged semi-finished product in a retort kettle at temperature, 120 ° C., pressure, 2.1 Kgf / cm ² ·
Retort treatment was performed under the retort treatment conditions of G, time, and 30 minutes to produce a retort-treated packaged product according to the present invention. The retort-processed packaging products produced above are
Even if the product was placed on a display shelf that receives a lot of fluorescence from fluorescent lamps at a mass retailer such as a supermarket, no decomposition or alteration of the contents was observed. In addition, the retort-processed packaged product manufactured as described above was also capable of being inspected for foreign matter by a metal detector.

Example 5 (1). First, the following resin compositions (a) to (c) were prepared. (I). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 minutes] 100.0 parts by weight, 0.5 parts by weight of synthetic silica, 0.05 parts by weight of erucic acid amide, and 0.05 parts by weight of ethylenebisoleylamide are sufficiently kneaded. Then, the resin composition forming the first layer was prepared. (B). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 min] 85.0 parts by weight, titanium oxide 15.0 parts by weight as a white pigment, and synthetic silica 0.5.
By weight, 0.05 part by weight of erucic acid amide and 0.05 part by weight of ethylenebisoleylamide were sufficiently kneaded to prepare a resin composition forming the second layer. (C). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 minutes] 98.5 parts by weight, carbon black as a black pigment 1.5 parts by weight, and erucic acid amide 0.05 parts by weight are sufficiently kneaded to form a third layer. Was prepared. (D). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 min] 85.0 parts by weight, titanium oxide 15.0 parts by weight as a white pigment, and synthetic silica 0.5.
By weight, sufficient mixing was performed with 0.05 part by weight of erucic acid amide and 0.05 part by weight of ethylenebisoleylamide to prepare a resin composition constituting the fourth layer. (E). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 minutes] 100.0 parts by weight, 0.5 parts by weight of synthetic silica, 0.05 parts by weight of erucic acid amide, and 0.05 parts by weight of ethylenebisoleylamide are sufficiently kneaded. Then, a resin composition forming the fifth layer was prepared. (2). Next, using the resin compositions of (a) to (e) prepared above, a layer of the resin composition of (a) of 5 μm and The layer of the resin composition is 20 μm, the layer of the resin composition (c) is 10 μm, and the layer of the resin composition (d) is 20 μm.
Layers of the resin composition having a thickness of 5 μm and (e) were coextruded to have a thickness of 5 μm to produce an unstretched multilayer laminated resin film having 5 layers. The multilayer laminated resin film produced above is milky white and has excellent aesthetics when visually recognized from the appearance, and also has sufficient light-shielding property or light-shielding property, hardly transmitting each wavelength due to oxidation of fats and oils, and extremely good. Met.

Reference Example 5 (1). An ordinary gravure ink composition was used on the corona-treated surface of a biaxially stretched nylon 6 film having a thickness of 15 μm to form a desired printed pattern by a gravure printing method, and then the entire surface including the printed pattern was coated with 2 A liquid-curable polyurethane adhesive for laminate was coated to a thickness of 4.0 g / m ² (dry state) using a gravure roll coat method to form an adhesive layer for laminate. Then, the multi-layer laminated resin film produced in the above-mentioned Example 5 is superposed on the adhesive layer surface for laminate so that the surface of the corona-treated surface of the thermoplastic resin layer of the first layer faces. Then, both of them were dry-laminated and laminated to manufacture a laminated material. (2). Next, two sheets of the laminated material produced as described above are prepared, the surfaces of the second thermoplastic resin layers are overlapped so as to face each other, and thereafter, the ends around the outer periphery are three-way heat-sealed. A three-way seal type soft packaging bag having a seal portion and an opening at the top was manufactured. The three-way seal type soft packaging bag produced above was filled and packaged with liquid detergent from the opening, and then the opening was heat-sealed to form the upper seal. To produce a packaged product. Even if the packaged product produced above was placed on a display shelf that receives a lot of fluorescence from fluorescent lamps at a mass retailer such as a supermarket, the contents were not decomposed or altered. Further, the packaged product manufactured as described above was also capable of being inspected for foreign matter by a metal detector.

Example 6 (1). First, the following resin compositions (a) to (c) were prepared. (I). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 100.0 parts by weight, synthetic silica 0.5 parts by weight,
0.05 part by weight of erucic acid amide and 0.05 part by weight of ethylenebisoleylamide were sufficiently kneaded to prepare a resin composition constituting the first layer. (B). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 85.0 parts by weight and titanium oxide 1 as a white pigment
5.0 parts by weight, 0.5 part by weight of synthetic silica, 0.05 part by weight of erucic acid amide, and 0.05 part by weight of ethylenebisoleylamide are sufficiently kneaded to form the second layer. A composition was prepared. (C). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 98.5 parts by weight, 1.5 parts by weight of carbon black as a black pigment, and 0.05 parts by weight of erucic acid amide are sufficiently kneaded to prepare a resin composition forming the third layer. did. (D). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 85.0 parts by weight and titanium oxide 1 as a white pigment
5.0 parts by weight, 0.5 parts by weight of synthetic silica, 0.05 parts by weight of erucic acid amide, and 0.05 parts by weight of ethylenebisoleylamide are sufficiently kneaded to form the fourth layer. A composition was prepared. (E). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 100.0 parts by weight, synthetic silica 0.5 parts by weight,
0.05 part by weight of erucic acid amide and 0.05 part by weight of ethylenebisoleylamide were sufficiently kneaded to prepare a resin composition forming the fifth layer. (2). Next, using the resin compositions of (a) to (e) prepared above, a layer of the resin composition of (a) was 5 μm and (b) using an inflation coextruder.
20 μm of the resin composition layer of (c), 10 μm of the resin composition of (c), and 2 layers of the resin composition of (d)
Layers of 0 μm and (e) of the resin composition were coextruded to 5 μm to produce an unstretched multilayer laminated resin film consisting of 5 layers. The multilayer laminated resin film produced above is milky white and has excellent aesthetics when viewed from the outside, and
The light-shielding property or light-shielding property was sufficient, and almost no wavelengths due to the oxidation of fats and oils were transmitted, which was extremely good.

Reference Example 6 (1). An ordinary gravure ink composition was used on the corona-treated surface of a biaxially stretched nylon 6 film having a thickness of 15 μm to form a desired printed pattern by a gravure printing method, and then the entire surface including the printed pattern was coated with 2 A liquid-curable polyurethane adhesive for laminate was coated to a thickness of 4.0 g / m ² (dry state) using a gravure roll coat method to form an adhesive layer for laminate. Then, the multi-layer laminated resin film produced in the above Example 6 is superposed on the adhesive layer surface for laminating so that the surface of the corona-treated surface of the thermoplastic resin layer of the first layer faces. After that, both were dry-laminated and laminated to manufacture a laminated material. (2). Next, two sheets of the laminated material produced as described above are prepared, the surfaces of the second thermoplastic resin layers are overlapped so as to face each other, and thereafter, the ends around the outer periphery are three-way heat-sealed. A three-way seal type soft packaging bag having a seal portion and an opening at the top was manufactured. The bleaching agent (liquid) is filled and packaged from the opening in the three-way seal type soft packaging bag produced above, and then the opening is heat-sealed to seal the upper seal. To form a packaged product. Even if the packaged product produced above was placed on a display shelf that receives a lot of fluorescence from fluorescent lamps at a mass retailer such as a supermarket, the contents were not decomposed or altered. Further, the packaged product manufactured as described above was also capable of being inspected for foreign matter by a metal detector.

Example 7 (1). First, the following resin compositions (a) to (c) were prepared. (I). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 min] 85.0 parts by weight, titanium oxide 15.0 parts by weight as a white pigment, and synthetic silica 0.5.
By weight, 0.05 part by weight of erucic acid amide and 0.05 part by weight of ethylenebisoleylamide were sufficiently kneaded to prepare a resin composition forming the first layer. (B). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 min] 98.5 parts by weight, carbon black as a black pigment 1.5 parts by weight, and erucic acid amide 0.05 parts by weight are sufficiently kneaded to form the second layer. Was prepared. (C). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 min] 85.0 parts by weight, titanium oxide 15.0 parts by weight as a white pigment, and synthetic silica 0.5.
By weight, 0.05 part by weight of erucic acid amide and 0.05 part by weight of ethylenebisoleylamide were sufficiently kneaded to prepare a resin composition forming the third layer. (D). Ethylene-α / olefin copolymer polymerized using a single-site catalyst (metallocene catalyst) [Mitsui Chemicals, Inc., trade name, Evolu-SP2020,
Density, 0.916 g / m ³ , melt flow rate (MF
R), 1.5 g / 10 minutes] 100.0 parts by weight, 0.5 part by weight of synthetic silica, 0.05 part by weight of erucic acid amide, and 0.05 part by weight of ethylenebisoleylamide are sufficiently kneaded. Then, a resin composition forming the fourth layer was prepared. (2). Next, using the resin compositions of (a) to (d) prepared above, a layer of the resin composition of (a) of 20 μm was formed using an inflation coextruder.
An unstretched multilayer laminated resin consisting of 4 layers by coextruding a layer of the resin composition of (b) to 10 μm, a layer of the resin composition of (c) to 20 μm, and a layer of the resin composition of (d) to 10 μm. A film was produced. The multilayer laminated resin film produced above has an aesthetic appearance that is milky white when viewed from the outside, and also has sufficient light-shielding property or light-shielding property, and hardly transmits each wavelength resulting from the oxidation of fats and oils,
It was extremely good.

Reference Example 7 (1). Vapor-deposited film of silicon oxide with a film thickness of 200Å (chemical vapor deposition
Biaxially stretched polyethylene film having a thickness of 12 μm
Surface of vapor-deposited film of silicon oxide on ren terephthalate film
The glow discharge plasma generator is used for
w, oxygen gas (O ₂): Argon gas (Ar) = 7.
Uses a mixed gas consisting of 0: 2.5 (unit: slm)
And mixed gas pressure 6 × 10^-FiveOxygen / argon mixture at Torr
Combined gas plasma treatment is performed to display the surface of the deposited film of silicon oxide.
Plasma with improved surface tension of 54 dyne / cm or more
The treated surface was formed. In addition, the silicon oxide vapor formed above is vaporized.
On the surface of the plasma treatment of the deposited film, the initial polyurethane resin
Epoxy silane coupling agent (8.0
%) And antiblocking agent (1.0% by weight) added
And use a primer-resin composition obtained by thoroughly kneading
Then, a film thickness of 0.5 is obtained by a gravure roll coat method.
g / m ²Coat so that it becomes (dry state)
A lymer layer was formed. Then, the primer layer is added as described above.
After the formation of the, the entire surface including the primer agent layer,
Using the gravure ink composition of
After forming the desired print pattern, the entire surface including the print pattern
In addition, a two-component curing type polyurethane-based adhesive for laminating
Gravity roll coat method was used to obtain a thickness of 4.0 g / m.
²Adhesive for laminate by coating (dry state)
A layer is formed, and then the adhesive layer for laminating
The multilayer laminated resin film produced in Example 7
Place the corona-treated surface of the first white resin layer facing each other
After mating and then laminating both, dry laminating
Lamination was performed to produce a laminated material. (2). Next, prepare 2 sheets of laminated material manufactured above
Then, the surfaces of the second thermoplastic resin layers are opposed to each other and overlapped.
After that, the edge around the outer periphery is three-way heat-sealed.
To form a seal and have an opening at the top.
A rectangular seal type flexible packaging bag was manufactured. Three produced above
Inside the one-seal type flexible packaging bag, open the potatoes through the opening.
Fill and wrap the package, and then open the opening.
And the upper seal was formed to produce a packaged product.
The packaged products manufactured above can be purchased at supermarkets and other mass retailers.
And put it on a display shelf that receives a lot of fluorescence from fluorescent lamps
Even if sold, the contents were not decomposed or altered.
It was In addition, the packaged products manufactured above are
Foreign matter inspection was also possible.

Example 8 (1). First, the following resin compositions (a) to (c) were prepared. (I). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 85.0 parts by weight and titanium oxide 1 as a white pigment
5.0 parts by weight, 0.5 parts by weight of synthetic silica, 0.05 parts by weight of erucic acid amide, and 0.05 parts by weight of ethylenebisoleylamide are sufficiently kneaded to form the first layer. A composition was prepared. (B). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 98.5 parts by weight, 1.5 parts by weight of carbon black as a black pigment, and 0.05 parts by weight of erucic acid amide are sufficiently kneaded to prepare a resin composition forming the second layer. did. (C). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 85.0 parts by weight and titanium oxide 1 as a white pigment
5.0 parts by weight, 0.5 parts by weight of synthetic silica, 0.05 parts by weight of erucic acid amide, and 0.05 parts by weight of ethylenebisoleylamide are sufficiently kneaded to form the third layer resin. A composition was prepared. (D). High-pressure low-density polyethylene [Mitsui Chemicals, trade name, Mirason 16P, density, 0.923 g / m
³ , melt flow rate (MFR), 3.7g / 10
Min] 100.0 parts by weight, synthetic silica 0.5 parts by weight,
0.05 part by weight of erucic acid amide and 0.05 part by weight of ethylenebisoleylamide were sufficiently kneaded to prepare a resin composition forming the fourth layer. (2). Next, using the resin compositions of (a) to (d) prepared above, a layer of the resin composition of (a) of 20 μm was formed using an inflation coextruder.
An unstretched multilayer laminate consisting of four layers by coextruding a layer of the resin composition of (b) into 10 μm, a layer of the resin composition of (c) into 20 μm, and a layer of the resin composition of (d) into a film of 10 μm. A resin film was produced. The multilayer laminated resin film produced above is milky white and has excellent aesthetics when visually recognized from the appearance, and also has sufficient light-shielding property or light-shielding property, hardly transmitting each wavelength due to oxidation of fats and oils, and extremely good. Met.

Reference Example 8 (1). Vapor-deposited film of silicon oxide with a film thickness of 200Å (chemical vapor deposition
Biaxially stretched polyethylene film having a thickness of 12 μm
Surface of vapor-deposited film of silicon oxide on ren terephthalate film
The glow discharge plasma generator is used for
w, oxygen gas (O ₂): Argon gas (Ar) = 7.
Uses a mixed gas consisting of 0: 2.5 (unit: slm)
And mixed gas pressure 6 × 10^-FiveOxygen / argon mixture at Torr
Combined gas plasma treatment is performed to display the surface of the deposited film of silicon oxide.
Plasma with improved surface tension of 54 dyne / cm or more
The treated surface was formed. In addition, the silicon oxide vapor formed above is vaporized.
On the surface of the plasma treatment of the deposited film, the initial polyurethane resin
Epoxy silane coupling agent (8.0
%) And antiblocking agent (1.0% by weight) added
And use a primer-resin composition obtained by thoroughly kneading
Then, a film thickness of 0.5 is obtained by a gravure roll coat method.
g / m ²Coat so that it becomes (dry state)
A lymer layer was formed. Then, the primer layer is added as described above.
After the formation of the, the entire surface including the primer agent layer,
Using the gravure ink composition of
After forming the desired print pattern, the entire surface including the print pattern
In addition, a two-component curing type polyurethane-based adhesive for laminating
Gravity roll coat method was used to obtain a thickness of 4.0 g / m.
²Adhesive for laminate by coating (dry state)
A layer is formed, and then a thickness is applied to the surface of the adhesive layer for lamination.
A 15 μm thick biaxially stretched nylon 6 film
The treated surfaces are made to face each other and overlapped, and then the
Both were dry laminated and laminated. Then product above
In addition to layered biaxially stretched nylon 6 film with a thickness of 15 μm
After performing corona discharge treatment on one side,
In the same way as above, a two-component curing type polyuret
Apply the gravure roll coat method to the adhesive for tongue laminate.
Using thickness 4.0g / m²Coating on (dry state)
To form a laminate adhesive layer, and then the laminate
-Multilayer stack produced in Example 8 above on the adhesive layer side
Layer resin film, corona treatment of the white resin layer of the first layer
The two faces are placed facing each other, and then both
Was laminated by dry lamination to produce a laminated material. (2). Next, prepare 2 sheets of laminated material manufactured above
Then, the surfaces of the second thermoplastic resin layers are opposed to each other and overlapped.
After that, the edge around the outer periphery is three-way heat-sealed.
To form a seal and have an opening at the top.
A rectangular seal type flexible packaging bag was manufactured. Three produced above
Inside the one-sided flexible packaging bag, put a curry through the opening.
Fill and wrap, and then heat seal the opening.
An upper seal is formed to produce a packaged semi-finished product, and then
Put the packaged semi-finished product in a retort kettle at a temperature of 120
℃, pressure, 2.1Kgf / cm²・ G, time, 30 minutes
Perform the retort treatment under the retort treatment conditions consisting of
A retort treated packaging product according to the invention was produced. Above
The manufactured retort-processed packaging products are sold at supermarkets and other mass retailers.
Placed on a display shelf that receives a lot of fluorescence from fluorescent lamps
Even if the product is sold, the contents are not decomposed or altered.
There wasn't. In addition, the retort-processed packaging products manufactured above
Was also able to inspect for foreign substances with a metal detector.

Comparative Example 1 As a heat-sealable resin film, a polyolefin resin film (manufactured by Idemitsu Unitech Co., Ltd., trade name, MS-602CG) having a thickness of 50 μm was used and comparatively evaluated.

Experimental Example Regarding the multilayer laminated resin films according to Examples 1 to 8 and the polyolefin resin film according to Comparative Example 1, (1). Total light transmittance, (2). The light-shielding property was measured and evaluated. (1). Measurement of Total Light Transmittance This was evaluated by measuring the transmittance of all light rays using a model name, Hazemeter (SM-C) manufactured by Suga Test Instruments Co., Ltd. (2). Measurement of light-shielding property This is a model name, UV-240, manufactured by Shimadzu Corporation
0 [PC], using a spectrophotometer, 220 [nm] to 800
The light transmittance in the [nm] region was measured and evaluated. The above measurement results are shown in Table 1 below.

[0064]

As is clear from the measurement results shown in Table 1 above, the multilayer laminated resin film according to the present invention has
While maintaining aesthetics and the like, it has an appropriate light-shielding property or light-shielding property, has a strong applicability as a light-shielding packaging material, and has sufficient practicality. In contrast, Comparative Example 1 The polyolefin-based resin film according to (2) was a packaging material that had a light-shielding property or a light-shielding property, but did not appear on the outside, and had a weak applicability.

[0066]

As is apparent from the above description, according to the present invention, first, a first white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant, at least a thermoplastic resin and a black colorant is used. A multi-layer resin laminate comprising a black resin layer made of a resin composition containing a colorant, and a second white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant, which are coextruded in this order. A film, or a first white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant, a black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant, and at least thermoplastic A second white resin layer made of a resin composition containing a resin and a white colorant, and a first thermoplastic resin made of a resin composition containing at least a thermoplastic resin as a main component of a vehicle. A multi-layer laminated resin film having a constitution in which a fat layer is co-extruded in order, and further, a second thermoplastic resin layer made of a resin composition containing at least a thermoplastic resin as a main component of a vehicle, at least a thermoplastic resin and a white system A first white resin layer made of a resin composition containing a colorant, a black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant, and a resin composition containing at least a thermoplastic resin and a white colorant. And a second white resin layer made of a resin, and a first thermoplastic resin layer made of a resin composition containing at least a thermoplastic resin as a main component of a vehicle are coextruded and laminated in this order to produce a multilayer laminated resin film. ,
Next, the multilayer laminated resin film is used, and other base material films and the like are optionally laminated on the multilayer laminated resin film to produce a laminated material as a packaging material, and then the laminated material is used and produced. The bag is manufactured into a packaging bag, and then the packaging bag is filled with the desired contents such as food and drink to produce a packaged product, which has strength and the like, and has weather resistance and heat resistance. , Excellent in various properties such as water resistance, heat seal, and the like, and particularly excellent in light-shielding property or light-shielding property, for example, blocking the transmission of sunlight or fluorescence by the sun or fluorescent lamps, etc. It prevents the product from decomposing or degrading or causing photo-degradation such as fading and other properties, and has suitability for filling and packaging of contents, suitability for storage, etc. Furthermore, it is harmful when incinerated and disposed of after use. Extremely suitable for disposal, environmental suitability, etc. without generating substances, etc. Excellent, also those that can be produced a metal piece (foreign matter) metal pieces by detectors, etc. (foreign matter) detection is possible packaging bag.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing a layer structure of an example of a multilayer laminated resin film according to the present invention.

FIG. 2 is a schematic cross-sectional view showing a layer structure of an example of a multilayer laminated resin film according to the present invention.

FIG. 3 is a schematic cross-sectional view showing a layer structure of an example of a multilayer laminated resin film according to the present invention.

FIG. 4 is a schematic cross-sectional view showing a layer structure of an example of a laminated material as a packaging material produced by using the multilayer laminated resin film according to the present invention shown in FIG.

FIG. 5 is a schematic cross-sectional view showing a layer structure of an example of a laminated material as a packaging material produced by using the multilayer laminated resin film according to the present invention shown in FIG.

FIG. 6 is a schematic perspective view showing an example of the configuration of a packaging bag manufactured by manufacturing a laminated material manufactured by using the multilayer laminated resin film according to the present invention shown in FIG.

FIG. 7 shows an example of the structure of a packaged product manufactured by using a packaging bag made of a laminated material produced by using the multilayer laminated resin film according to the invention shown in FIG. It is a schematic perspective view shown.

[Explanation of symbols]

A Multilayer Laminated Resin Film A ₁ Multilayer Laminated Resin Film A ₂ Multilayer Laminated Resin Film B Laminated Material B ₁ Laminated Material C Three-Way Seal Type Bag-shaped Container Body D Packaged Product 1 First White Resin Layer 2 Black Resin Layer 3 Second white resin layer 4 First thermoplastic resin layer 5 Second thermoplastic resin layer 11 Base film 12 Printed pattern layer 13 Laminate adhesive layer 14 Barrier substrate 15 Laminate adhesive Layer 21 Seal portion 22 Opening portion 23 Content 24 Upper sealing portion

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Toshihiro Fukuda             1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo             Dai Nippon Printing Co., Ltd. F-term (reference) 4F100 AA02A AA02C AA03A AA03C                       AA07A AA07C AA08A AA08C                       AA11A AA11C AA21 AA21A                       AA21C AA29A AA29C AA37                       AA37B AB02B AD11B AK01A                       AK01B AK01C AK01D AK01E                       AK05A AK05B AK05C AK05D                       AK05E AK06A AK06B AK06C                       AK06D AK06E AK07A AK07B                       AK07C AK07D AK07E AK41A                       AK41B AK41C AK41D AK41E                       AK42 AK46A AK46B AK46C                       AK46D AK46E AK48 AK51G                       AK62 AK62A AK62B AK62C                       AK62D AK62E AK63A AK63B                       AK63C AK63D AK63E AK64A                       AK64B AK64C AK64D AK64E                       AK68A AK68B AK68C AK68D                       AK68E AK70A AK70B AK70C                       AK70D AK70E AK71A AK71B                       AK71C AK71D AK71E AL05A                       AL05B AL05C AL05D AL05E                       BA03 BA04 BA05 BA06 BA07                       BA10A BA10C BA10D BA10E                       BA15 CA13A CA13B CA13C                       DA01 EH202 EJ38 EJ55                       GB15 GB16 GB23 HB31 JA20A                       JA20B JA20C JA20D JA20E                       JB07 JB16A JB16B JB16C                       JB16D JB16E JK01 JL00                       JL08A JL08B JL08C JL08D                       JL08E JL09 JN02 YY00A                       YY00B YY00C YY00D YY00E

Claims (13)

[Claims] 1. A first white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant, a black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant, and A multi-layer resin film comprising a second white resin layer formed by co-extrusion in order of a resin composition containing at least a thermoplastic resin and a white colorant. 2. A first white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant, a black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant, and at least heat. A second white resin layer made of a resin composition containing a plastic resin and a white colorant; and
A multi-layer laminated resin film, which comprises at least a first thermoplastic resin layer made of a resin composition containing a thermoplastic resin as a main component of a vehicle and co-extruded in that order. 3. A second thermoplastic resin layer made of a resin composition containing at least a thermoplastic resin as a main component of a vehicle, and a first white resin layer made of a resin composition containing at least the thermoplastic resin and a white colorant. A black resin layer made of a resin composition containing at least a thermoplastic resin and a black colorant, a second white resin layer made of a resin composition containing at least a thermoplastic resin and a white colorant, and at least a thermoplastic resin First by a resin composition whose main component is a vehicle
A multilayer laminated resin film, wherein the thermoplastic resin layer is laminated in the order of coextrusion. 4. The thermoplastic resin is low density polyethylene (LDPE), linear (linear) low density polyethylene (polymer polymerized using a multisite catalyst, LLDP).
E), an ethylene-α-olefin copolymer polymerized using a metallocene catalyst (single site catalyst), medium density polyethylene (MDPE), high density polyethylene (HD
PE), polypropylene resin, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer,
The ethylene-acrylic acid ester copolymer, the ethylene-methacrylic acid ester copolymer, a thermoplastic polyester-based resin, or a thermoplastic polyamide-based resin, which is characterized in that any one of claims 1 to 3 above. The multilayer laminated resin film described in 1. 5. The white colorant is basic lead carbonate, basic lead sulfate, basic lead silicate, zinc white, zinc sulfide, lithopone, antimony trioxide, anatas-type titanium oxide, or rutile-type titanium oxide. 1. The above-mentioned 1 to 2 which comprises one or more white pigments
4. The multilayer laminated resin film according to any one of 4 above. 6. The resin composition containing a thermoplastic resin and a white colorant contains the white colorant in an amount of 0.1 to 30.0% by weight. 5. The multilayer laminated resin film according to any one of 5 above. 7. The black colorant is a black pigment, or
The multilayer laminated resin film according to any one of claims 1 to 6, which comprises a mixture of a black pigment and a white pigment. 8. The black colorant is iron black, graphite, or
The multilayer laminated resin film according to any one of claims 1 to 7, which is composed of one or more black pigments composed of carbon black. 9. A resin composition containing a thermoplastic resin and a black colorant, which contains a black pigment in an amount of 0.1 to 10.0% by weight. The multilayer laminated resin film described in any one of 1. 10. A resin composition containing a thermoplastic resin and a black colorant, wherein the black pigment is 0.1 to 10.0% by weight,
And 0.1-30.0 weight% of white pigments are contained, The multilayer laminated resin film as described in any one of the said Claims 1-9 characterized by the above-mentioned. 11. The multilayer laminated resin film according to any one of claims 1 to 10, wherein the first or second white resin layer has a film thickness of 3 μm to 40 μm. 12. The black resin layer has a film thickness of 2 μm to 40 μm.
The multilayer laminated resin film according to any one of claims 1 to 11, wherein the multilayer laminated resin film comprises 13. The first or second thermoplastic resin layer,
The multilayer laminated resin film according to any one of claims 1 to 12, which has a film thickness of 3 µm to 40 µm.