JP6205992B2 - RESIN COMPOSITION FOR EXTRUSION LAMINATION, LAMINATE THEREOF, AND FOOD PACKAGING BAG USING THE SAME - Google Patents

Description

  The present invention relates to a resin composition for extrusion laminating used in seasonings, confectionery, dried food, powder medicine, various powder packaging materials, packaging bags, and the like, and more specifically, without spraying powder during extrusion laminating. Further, the present invention relates to a resin composition for laminating that does not generate winding bumps due to uneven thickness because of good sliding properties with a surface layer base material. Furthermore, the present invention relates to a laminate excellent in slipperiness, heat sealability and hygiene, and a food packaging bag obtained thereby.

  In laminates used for food packaging bags, etc., for filling and packaging products such as liquid seasonings such as soy sauce, sauces and dressings, liquids such as soup juice drinks, solids such as sprinkles and confectionery Therefore, rigidity, puncture resistance and heat sealability as packaging materials are required.

  As said laminated body, the laminated body comprised at least from a base material layer and a sealant layer is widely used. The base layer includes biaxially stretched polyethylene terephthalate film, biaxially stretched nylon film, etc., and the sealant layer uses polyethylene resin, ethylene ionomer resin, ethylene / vinyl acetate copolymer, etc. Has been.

With respect to the rigidity, puncture resistance, and heat sealability of the packaging material, it is possible to easily design the packaging material by selecting a base material and a heat seal layer.
However, the laminate composed of the base material layer and the sealant layer has no slipperiness between the surfaces of the base material layer and the sealant layer, and in the film forming process, the slit process, the bag making process, and the content filling process, A blocking phenomenon in which the sealant layer and the base material layer adhere to each other, or bumps and sagging due to uneven thickness occur. Furthermore, when stored for a long time or at a high temperature, there is a problem that the developability of the film is deteriorated and the bag-making workability and the filling workability are remarkably lowered.

  Laminated sheet to prevent blocking during the sealant extrusion process, or slit process, bag making process, contents filling process, and to improve the slipperiness between the roll and guide of the filling machine, the former and the surface of the laminated sheet In the innermost layer, powder such as corn starch of about 10 to 30 μm was sprayed in common sense to solve the above problems.

  However, the powder not only worsens the working environment in the laminating factory, but also causes the powder to harden and adhere to the surface of the sheet, resulting in “spot dropping”, resulting in so-called “red and white” uneven transparency.

  As another method for solving this problem, for example, a laminated film in which a base material layer and a sealant layer are laminated, and the surface of the sealant layer is composed of smooth portions and convex portions, and the number of convex portions per certain area is A packaging container characterized by having a shape has been proposed (see Patent Document 1).

However, just giving unevenness to the laminated film as in Patent Document 1, the slip property between the surface base material immediately after lamination and the innermost layer is insufficient, and winding wrinkles and uneven thickness bumps are not eliminated.
Also, bumps due to uneven thickness immediately after laminating will not be eliminated even in the slitter process, leading to poor slipperiness with each guide of the packaging machine when filling the contents, and bag making workability and filling workability are significantly reduced. There was a problem, and it was not satisfactory at all.

JP 2004-167756 A

  An object of the present invention is a food packaging that is excellent in slipperiness and does not generate bumps due to blocking or uneven thickness, and is excellent in heat sealability, hygiene, hot tackiness, seal strength, impact resistance, heat resistance, etc. It is providing the laminated body suitable for material, and the food packaging bag using the same.

  As a result of diligent research to achieve the above object, the present inventors have adopted a resin composition for laminating containing a specific additive as the innermost layer, so that even without using a powder such as corn starch, Sliding property, especially the sliding property between the surface base material and the innermost layer is improved and heat sealability, hygiene, hot tack property, seal strength, impact resistance, heat resistance are achieved without blocking and unevenness due to uneven thickness. The present inventors have found that a laminate having excellent properties and the like and a food packaging material using the same can be obtained.

  That is, according to the first invention, the general formula (I) with respect to 100 parts by weight of the ethylene-based polymer.

(In the formula, R ¹ is a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms.)
0.01 to 1.0 part by weight of glycerin monofatty acid ester represented by
Formula (II)

(In the formula, R ² is a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms.)
The resin composition for extrusion lamination characterized by including 0.01-0.3 weight part of fatty acid amide represented by these is provided.

  Moreover, according to 2nd invention, the resin composition for extrusion lamination characterized by the glycerol mono fatty acid ester being glycerol monolauric acid ester in 1st invention is provided.

  Further, according to the third invention, there is provided a resin composition for extrusion lamination in which the fatty acid amide is erucic acid amide in the first or second invention.

  Moreover, according to 4th invention, it is related with 1st-3rd invention, The laminated body characterized by having the innermost layer and base material layer which consist of the said resin composition for extrusion lamination is provided.

  Furthermore, according to a fifth invention, in the fourth invention, there is provided a laminate in which the base material layer includes a PET layer or a nylon layer.

  Moreover, according to 6th invention, it concerns on 4th or 5th invention, The food packaging bag characterized by consisting of the said laminated body is provided.

  In the resin composition for laminating of the present invention, so-called non-powder is excellent in slipperiness, so that no humps due to blocking and uneven thickness occur, and heat sealability, hygiene, hot tack, seal strength, impact resistance It has the advantage that it can be suitably used for food packaging bags having excellent heat resistance and the like.

The present invention is described in detail below.
1. Ethylene Polymer The density of the ethylene polymer constituting the resin composition for extrusion lamination of the present invention is not particularly limited, but is preferably 0.880 to 0.930 g / cm ³ , more preferably 0.885. It is in the range of ˜0.925 g / cm ³ . When the density exceeds 0.930 g / cm ³ , the low-temperature heat sealability of the resulting laminate is deteriorated. On the other hand, if it is less than 0.880 g / cm ³ , laminate molding is difficult, which is not preferable.

  The melt flow rate (MFR) of the polyethylene polymer is not particularly limited, but is preferably 1 to 50 g / 10 minutes, more preferably 2 to 30 g / 10 minutes. is there. When the MFR exceeds 50 g / 10 minutes, it is difficult to handle the resin due to stickiness, and when the MFR is less than 1 g / 10 minutes, the average molecular weight is so large that a stable operation cannot be performed during laminate molding.

  The ethylene polymer constituting the resin composition for extrusion laminating according to the present invention includes an ethylene homopolymer, a copolymer of ethylene and an α-olefin having 3 to 20 carbon atoms, and a vinyl ester such as ethylene and vinyl acetate. And a copolymer thereof. For example, homopolyethylene, ethylene / propylene copolymer, ethylene / 1-butene copolymer, ethylene / 1-hexene copolymer, ethylene / 1-octene copolymer, ethylene / 4-methyl-1-pentene copolymer Polymer, ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, ethylene / methacrylic acid copolymer, ethylene / acrylic acid ester copolymer, ethylene / methacrylic acid ester copolymer, etc. You may use an ethylene-type polymer individually by 1 type or in combination of 2 or more types.

  Among these, ethylene / propylene copolymer, ethylene / 1-butene copolymer, ethylene / 1-hexene copolymer, ethylene / 1-octene copolymer, ethylene / 4-methyl-1-pentene copolymer A polymer and an ethylene / vinyl acetate copolymer are preferable in terms of cost performance, heat seal strength, and the like.

  Such an ethylene polymer is conveniently selected from commercially available ethylene polymers within the scope of the present invention, and the polymerization method is not particularly limited. For example, in the case of high-pressure low-density polyethylene and ethylene / vinyl acetate copolymer, a radical polymerization method by high-pressure method can be mentioned, such as ethylene / 1-butene copolymer and ethylene / 1-hexene copolymer. In the case of the ethylene / α-olefin copolymer, polymerization methods such as a gas phase method, a solution method, and a high pressure method using a Ziegler-Natta catalyst or a metallocene catalyst can be mentioned.

2. Glycerin monofatty acid ester The glycerin monofatty acid ester constituting the resin composition for extrusion laminating according to the present invention is represented by the general formula (I), and is obtained by a monoesterification reaction between a fatty acid represented by R ¹ COOH and glycerin. A compound.
When the carbon number of R ¹ constituting the monoglycerin fatty acid ester is less than 8 or more than 22, it is not preferable because the antistatic property of the laminate obtained by extrusion lamination is inferior. Examples of the compound include glycerol monolaurate, glycerol monopalmitate, glycerol monostearate, glycerol monooleate, and glycerol monolinoleate. These compounds can be used either alone or in a mixture.
In the present invention, glycerol monolaurate is most suitable among glycerol mono-fatty acid esters. This is because glycerin monolaurate has a relatively low molecular weight and serves as a component serving as a derivative that facilitates precipitation of the fatty acid amide on the innermost layer surface.
The blending amount of the ethylene polymer and the glycerin monofatty acid ester constituting the resin composition for extrusion lamination in the present invention is 0.01 to 1.0 part by weight of the glycerin monofatty acid ester with respect to 100 parts by weight of the ethylene polymer. is there. If it is less than 0.01, the role of a derivative is insufficient. On the other hand, if it is 1.0 or more, the surface becomes sticky, such being undesirable.

3. Fatty acid amide The fatty acid amide constituting the resin composition for extrusion lamination of the present invention is a compound represented by the general formula (II).
When the carbon number of R ² constituting the fatty acid amide that is a slip agent is less than 11 and exceeds 23, the slip property of the laminate obtained by extrusion lamination is inferior, which is not preferable. Examples of such fatty acid amides include lauric acid amide, palmitic acid amide, stearic acid amide, oleic acid amide, erucic acid amide and the like. These compounds can be used either alone or in a mixture.
In the present invention, erucic acid amide is most preferable as the fatty acid amide. This is because it has excellent heat resistance during extrusion laminating at a high temperature.
The blending amount of the ethylene polymer and the fatty acid amide constituting the resin composition for extrusion lamination in the present invention is 0.01 to 0.3 of the fatty acid amide with respect to 100 parts by weight of the ethylene polymer. If it is less than 0.01, the effect of improving the slipperiness is not sufficiently exhibited. On the other hand, if it exceeds 0.3, the adhesive strength and the low-temperature sealability when filling the contents are hindered.

4). Extrusion Laminating Resin Composition The method for producing the extrusion laminating resin composition in the present invention is not particularly limited, but the ethylene polymer, glycerin monofatty acid ester, and fatty acid amide are mixed with a Henschel mixer or the like. Examples thereof include dry blending and melt-kneading with an extruder, kneader, Banbury and the like. Moreover, it is good also as a master resin.

  In addition, the resin composition for extrusion lamination in the present invention is generally used for polyolefin resins such as antioxidants, weathering stabilizers, antiblocking agents and the like as necessary within the range not impairing the effects of the present invention. Additives may be added.

  Further, in order to impart flexibility and the like to the resin composition of the present invention, a crystalline ethylene / α-olefin copolymer polymerized by a Ziegler-based or metallocene-based catalyst within a range not impairing the object of the present invention. And / or rubber compounds such as ethylene / α-olefin elastomers such as EBR and EPR, or styrene elastomers such as SEBS and hydrogenated styrene block copolymers may be blended in an amount of 3 to 75 parts by weight. Furthermore, in order to give melt tension etc., 3-75 weight part of high pressure process low density polyethylene can also be mix | blended.

5. Laminate As a base material layer of the present invention, paper such as fine paper, kraft paper, thin paper, Kent paper, metal foil such as aluminum foil, cellophane, woven fabric, non-woven fabric, stretched nylon, unstretched nylon, special nylon (MXD6, etc.) ), Nylon base materials such as K-nylon (polyvinylidene fluoride coating), PET (polyethylene terephthalate) base materials such as stretched PET, non-stretched PET, K-PET, aluminum vapor-deposited PET (VMPET), stretched PP (OPP) , Synthesis of polypropylene base materials such as unstretched PP (CPP), aluminum vapor-deposited PP, K-PP, co-extruded film PP, LDPE film, LLDPE film, EVA film, stretched LDPE film, stretched HDPE film, polystyrene film, etc. Resin film base materials, etc., are listed. However, there is no problem. If necessary, various pretreatments such as corona treatment, flame treatment, plasma treatment, ultraviolet treatment, anchor coating treatment may be performed.

The laminate of the present invention has at least the base material layer described above and the innermost layer (sealant layer) made of the above-described resin composition for extrusion lamination. As the laminate, another layer may be further provided.
For example, the sealant layer and the base material layer may be disposed adjacent to each other, but in some cases, it is desirable to provide a barrier material layer between the base material layer and the sealant layer as necessary. The barrier material layer is made of a material that blocks gas such as oxygen or water vapor to prevent the deterioration of the contents. Depending on the application, a polyamide film, a polyethylene terephthalate film, a polyvinyl alcohol film, aluminum deposition Examples thereof include a film, a metal foil such as an aluminum foil, a saponified ethylene-vinyl acetate copolymer, and the like. In particular, an aluminum foil having low gas permeability and water vapor permeability, and a saponified ethylene-vinyl acetate copolymer having low gas permeability are preferable. These materials may be overlapped with the above-described substrates, for example, substrates having barrier properties such as aluminum-deposited PET and aluminum-deposited PP. In addition, when the adhesiveness between these materials and other base materials is poor, secondary workability may be enhanced by surface treatment such as ozone treatment, corona discharge treatment, and application of a surfactant.

  The layers constituting the laminate are not limited to these, and other layers may be provided between the base material layer and the barrier material layer, between the barrier material layer and the sealant layer, or outside the base material layer. Further, a layer made of a polyolefin such as polyethylene, an ionomer resin, various polyolefins and / or an acid-modified polyolefin obtained by graft-modifying an unsaturated carboxylic acid or a derivative thereof on rubber may be provided.

For example, as a layer structure,
PET substrate / PE laminate / sealant layer, PET substrate / PE laminate / Al / sealant layer, PET substrate / PE laminate / Al / PE laminate / sealant layer, PET substrate / acid modified PE / EVOH / Sealant layer, PET base material / Al / PE laminate / sealant layer,
Nylon substrate / PE laminate / sealant layer, nylon substrate / PE laminate / Al / sealant layer, nylon substrate / PE laminate / Al / PE laminate / sealant layer, nylon substrate / acid modified PE / EVOH / Sealant layer,
Paper / PE laminate / sealant layer, paper / PE laminate / Al / sealant layer, paper / PE laminate / Al / PE laminate / sealant layer, paper / acid-modified PE / EVOH / sealant layer, OPP / PE laminate / sealant layer, OPP / PE laminate / Al / sealant layer, K-nylon / acid-modified PE / EVOH / sealant layer, stretched HDPE / acid-modified PE / EVOH / sealant layer, nonwoven fabric / acid-modified PE / EVOH / sealant layer, and the like. Moreover, you may use aluminum vapor deposition or silica vapor deposition instead of Al.
(However, PE lamination: polyethylene resin laminate layer, Al: aluminum foil, acid-modified PE: maleic anhydride-modified polyethylene).
Of the layer configurations listed above, when the content is a solid such as a sprinkle or a poultice, a PET base material / PE laminate / Al / sealant layer is typical. Moreover, a nylon base material is preferable for a liquid or viscous material, and a nylon base material / PE laminate / sealant layer is a typical example.

  As a method for producing the laminate of the present invention, after laminating a resin such as LDPE or LLDPE on the base material layer by extrusion lamination molding, a method of laminating a sealant layer by extrusion lamination molding, There is a method of laminating a resin such as LDPE or LLDPE and simultaneously laminating a sealant layer after sanding an aluminum substrate. You may carry out by various methods including the method of interposing an adhesive agent between a base material layer and resin, such as LDPE and LLDPE.

Further, in the present invention, the thickness of the ethylene-based resin layer may be a thickness that can be held to the minimum necessary for strength, pinhole resistance, puncture resistance, rigidity, etc. There is also a disadvantage that the cost increases, and conversely, if it is too thin, the strength, puncture resistance, rigidity, etc. are undesirably lowered.
The thickness of the film is 5 to 100 μm, preferably about 15 to 50 μm.

  Examples of foods that are particularly suitable for filling and sealing in the above packaging bags include retort foods such as curry and stew, seasonings such as miso, kneaded products such as konjac, chikuwa and koji, and smoked ham and sausages. It can be suitably used for cooked foods such as products, meatballs and hamburgers, processed fishery products, pickles, boiled foods, liquid or viscous foods and beverages such as taste products.

  EXAMPLES Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited to these examples. In addition, the physical property used by the Example and the comparative example, the measuring method and evaluation method of workability, use resin, a base material, and an additive are as follows.

1. Evaluation method of physical properties (1) Melt flow rate (MFR):
Measurement was performed in accordance with JIS K7210 test condition 4 (190 ° C., 21.18 N load).
(2) Density:
Measured according to JIS K7112.

2. Evaluation method of laminate (1) Adhesive strength:
After the laminated film cut to a width of 15 mm is peeled with ethanol between the aluminum layer surface, the anchor coating agent and the adjacent polyethylene innermost layer, or between the nylon base material and the adjacent linear low density polyethylene, Adhesive strength was measured with a tensile tester manufactured by Toyo Seiki Co., Ltd., maintaining an opening angle of 90 ° at a tensile speed of 300 mm / min.
(2) Slip property:
Set a sample of 80 mm x 150 mm with Haydon's tilt type sliding machine so that the innermost layer surface side is the upper surface, and cut the sample to 35 mm x 100 mm with a roller so that the substrate surface layer is aligned with the lower sample. The angle until the upper sample slides down was measured.
Rolled Cobb:
The whole sample wound up 1000 m by extrusion lamination was touched with a fingertip, and the presence or absence of a bump was observed.
○: No bumps are observed immediately after lamination and after adjustment of the aging condition. Δ: No bumps are observed immediately after lamination, but the bumps are observed after adjustment of the aging condition.

3. Processing conditions and apparatus The laminate was processed under the following apparatus and conditions.
Equipment: Modern, 90mmφ single laminating machine Die width: 500mm
Processing speed: 100 m / min
Anchor coating agent: A3210 / A3075 (Mitsui Chemical Polyurethane Co., Ltd.)
Ozone device: manufactured by Sophthal Inc. Flow rate: 1.5 N / m ³ / h Concentration: 14 g / m ³

[Example 1]
(A1) High-pressure low-density polyethylene resin (brand name: Novatec LC600A, manufactured by Nippon Polyethylene Co., Ltd., MFR: 7 g / 10 min, density: 0.918 g / cm ³ ) With respect to 100 parts by weight, (b1) glycerin monolaurin 0.1 parts by weight of acid ester (brand name: TS-14B, manufactured by Kao Corporation), (b4) 0.04 part by weight of erucic acid amide (brand name: P-10, manufactured by Nippon Kasei Co., Ltd.) The mixture was melt-kneaded at 180 ° C. and pelletized.
As a base material laminate sheet, a polyester film 12μ (brand name: T4102, manufactured by Toyobo Co., Ltd.) is fed from a feeding device using a 90 mmφ single laminate molding machine manufactured by Modern Machinery Co., Ltd. under a processing speed of 100 m / min and a molding temperature of 315 ° C. The product was discharged and extruded through an anchor coating agent (brand name: Takelac A3210 / A3075 (aromatic ester), manufactured by Mitsui Chemicals Polyurethanes), with a thickness of 15 μm and a high-pressure radical method low-density polyethylene (brand name: Novatec LC600A, Nippon Polyethylene Co., Ltd., MFR: 7 g / 10 min, density: 0.918 g / cm ³ ), an aluminum substrate 7 μm (manufactured by Sumitomo Light Metal Co., Ltd.) is fed from a sand apparatus, and a laminate ((A) PET substrate layer / ( B) low density polyethylene intermediate layer / (C) aluminum layer).
Resin pelletized with a twin screw extruder manufactured by Toshiba Machine Co., Ltd. from a die width of 500 mm through an anchor coating agent (brand name: Takelac A3210 / A3075, manufactured by Mitsui Polyurethane Co., Ltd.) on the aluminum surface of the obtained laminate. Laminate ((A) PET base layer / (B) low density polyethylene intermediate layer / (C) aluminum layer / (D) low density) by melt extrusion so that the temperature is 315 ° C. and a thickness of 25 μm. Polyethylene innermost layer) was prepared.
Using the obtained laminate, adhesive strength, slipperiness, and winding bumps were evaluated. The evaluation results are shown in Table 1.

[Example 2]
A laminate was prepared in the same manner as in Example 1 except that the blending amount of erucic acid amide (b4) was changed at the ratio shown in Table 1. The evaluation results are shown in Table 1.

[Example 3]
A laminate was prepared in the same manner as in Example 1 except that the blending amount of erucic acid amide (b4) was changed at the ratio shown in Table 1. The evaluation results are shown in Table 1.

Example 4
A laminate was prepared in the same manner as in Example 1 except that the blending amounts of (b1) and (b4) were changed at the ratio shown in Table 1. The evaluation results are shown in Table 1.

Example 5
A laminate was prepared in the same manner as in Example 2 except that (b2) was used instead of (b1). The evaluation results are shown in Table 1.

Example 6
A laminate was prepared in the same manner as in Example 2 except that (b5) was used instead of (b4). The evaluation results are shown in Table 1.
Example 7
A laminate was prepared in the same manner as in Example 2 except that (b6) was used instead of (b4). The evaluation results are shown in Table 1.

[Comparative Example 1]
A laminate was prepared in the same manner as in Example 2 except that (b3) was used instead of (b1). The evaluation results are shown in Table 1.

[Comparative Example 2]
A laminate was prepared in the same manner as in Example 1 except that (b4) was not used. The evaluation results are shown in Table 1.

[Comparative Example 3]
A laminate was prepared in the same manner as in Example 1 except that the blending amount of (b4) was changed at the ratio shown in Table 1. The evaluation results are shown in Table 1.

[Comparative Example 4]
A laminate was prepared in the same manner as in Example 2 except that the blending amount of (b1) was changed at the ratio shown in Table 1. The evaluation results are shown in Table 1.

[Example 8]
(B2) Glycerol with respect to 100 parts by weight of (a2) linear low-density polyethylene resin (brand name: Kernel KC571, manufactured by Nippon Polyethylene Co., Ltd., MFR: 10 g / 10 min, density: 0.910 g / cm ³ ) 0.1 part by weight of monolauric acid ester (brand name: TS-14B, manufactured by Kao Corporation), (b4) 0.04 part by weight of erucic acid amide (brand name: P-10, manufactured by Nippon Kasei Co., Ltd.) The product was melt-kneaded at 180 ° C. and pelletized.
With a 90 mmφ single laminating machine manufactured by Modern Machinery Co., Ltd., 15 μm of biaxially stretched nylon film (brand name: N4142, manufactured by Toyobo Co., Ltd.) is discharged from the feeding device, processing speed is 100 m / min, molding temperature is 300 ° C., and ozone (A3) Linear low-density polyethylene resin (brand name: Harmolex) through an anchor coating agent (brand name: Takelac A3210 / A3075 (aromatic ester), manufactured by Mitsui Chemicals Polyurethanes) under the conditions subjected to the treatment. NH645A manufactured by Nippon Polyethylene Co., Ltd., MFR: 8 g / 10 min, density: 0.913 g / cm ³ ) was melt-extruded and laminated to a thickness of 25 μm, and a laminate ((A) nylon base layer / (B) A linear low density polyethylene layer) was prepared.
To the surface of the polyethylene layer of the obtained laminate, a resin pelletized in advance by a twin-screw extruder manufactured by Toshiba Machine Co. is melt-extruded from a die width of 500 mm to a molding temperature of 285 ° C. and a thickness of 25 μm. A laminate ((A) nylon base layer / (B) linear low density polyethylene intermediate layer / (C) linear low density polyethylene innermost layer) was prepared.
Using the obtained laminated body, the adhesive strength with a base material, slipperiness, and a winding bump were evaluated. The evaluation results are shown in Table 2.

[Example 9]
A laminate was prepared in the same manner as in Example 8 except that the blending amount of erucic acid amide (b4) was changed at the ratio shown in Table 2. The evaluation results are shown in Table 2.

[Example 10]
A laminate was prepared in the same manner as in Example 8 except that the blending amount of erucic acid amide (b4) was changed at the ratio shown in Table 2. The evaluation results are shown in Table 2.

Example 11
A laminate was prepared in the same manner as in Example 8 except that the blending amounts of (b1) and (b4) were changed at the ratio shown in Table 2. The evaluation results are shown in Table 2.

Example 12
A laminate was prepared in the same manner as in Example 9 except that (b2) was used instead of (b1). The evaluation results are shown in Table 2.

Example 13
A laminate was prepared in the same manner as in Example 9 except that (b5) was used instead of (b4). The evaluation results are shown in Table 2.
Example 14
A laminate was prepared in the same manner as in Example 9 except that (b6) was used instead of (b4). The evaluation results are shown in Table 2.

[Comparative Example 5]
A laminate was prepared in the same manner as in Example 9 except that (b3) was used instead of (b1). The evaluation results are shown in Table 2.

[Comparative Example 6]
A laminate was produced in the same manner as in Example 8 except that (b4) was not used. The evaluation results are shown in Table 2.

[Comparative Example 7]
A laminate was made in the same manner as in Example 8 except that the blending amount of (b4) was changed at the ratio shown in Table 1. The evaluation results are shown in Table 2.

[Comparative Example 8]
A laminate was prepared in the same manner as in Example 9 except that the blending amount of (b1) was changed at the ratio shown in Table 1. The evaluation results are shown in Table 2.

"Evaluation"
From the results of Tables 1 and 2 above, as shown in Examples 1 to 7 and Examples 8 to 14 of the present invention, two types of additives (b1) or (b2) and a slip agent were used in combination. When an appropriate addition amount is blended, it has been found that the slipperiness between the substrate surface immediately after lamination and the innermost layer surface is good, no winding bumps are generated, and the object of the present application can be achieved.

  The resin composition for laminating of the present invention has good slipperiness between the substrate surface and the innermost layer surface without using a powder such as corn starch, and is suitably used for packaging forms for general applications using powder. .

Claims (5)

General formula (I) per 100 parts by weight of ethylene polymer
(In the formula, R ¹ is a linear or branched alkyl group having 11 carbon atoms.)
0.01 to 1.0 part by weight of glycerol monolaurate represented by
Formula (II)
(In the formula, R ² is a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms.)
A resin composition for extrusion laminating comprising 0.01 to 0.3 parts by weight of a fatty acid amide represented by the formula ( excluding those containing a polyglycerol fatty acid ester) . Wherein the fatty acid amide, extrusion laminating resin composition according to claim 1, characterized in that the erucic acid amide. Claim 1 or laminate characterized by having an innermost layer and substrate layer made of extrusion laminating resin composition according to any one of 2. The laminate according to claim 3 , wherein the base material layer includes a PET layer or a nylon layer. A food packaging bag comprising the laminate according to claim 3 or 4 .