JPH10296923A - Laminate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve contamination removing properties and chemical resistance lay laminating a layer of a resin composition composed of a specific saponified material of an ethylene-vinyl acetate copolymer and the ethylene-vinyl acetate copolymer and a layer of an ethylene-vinyl acetate copolymer containing a carboxyl group. SOLUTION: A layer of a resin composition composed of a saponified material of an ethylene-vinyl acetate copolymer of which the ethylene content is 20-60 mol.% and the saponification degree 90 mol.% or above and the ethylene- vinyl acetate copolymer and a layer of an ethylene-vinyl acetate copolymer containing a carboxyl group are laminated. According to this constitution, contamination removing properties and chemical resistance can be improved and a laminate thus obtained can be used for wallpaper for the interior finish of a building and a decorative sheet for finishing furniture or the like, to begin with, and office supplies such as a desk mat, stationery such as a memorandum book and a file using a cover of vinyl chloride resin leathercloth, an interior material for an automobile, a material for agriculture such as a film for agriculture, sundries for daily use (vinyl mat, umbrella, etc.), etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminate of a saponified ethylene-vinyl acetate copolymer (hereinafter abbreviated as EVOH) composition, and more particularly to stain resistance (stain removal property) and chemical resistance. The present invention relates to a laminate having excellent properties.

[0002]

2. Description of the Related Art Conventionally, vinyl chloride resin sheets and films have been used as decorative sheets for finishing wallpaper and furniture for architectural interiors, agricultural materials, automotive interior materials, and daily goods (vinyl mats, umbrellas). Etc.), as well as office supplies such as desk mats, file covers, notebook covers, stationery and the like. However, such a vinyl chloride resin contains a large amount of a plasticizer,
Wallpaper in which EVOH is laminated on a vinyl chloride resin layer in order to prevent the plasticizer in the vinyl chloride resin from being adversely affected.
No. 015) and a polyvinyl chloride film containing a plasticizer in an amount of 25 to 55% by weight.
(Japanese Patent Application Laid-Open No. 60-224542)
Has been proposed.

[0003]

However, although any of the above laminates (wallpaper) has a short-term plasticizer suppression effect, it is left for a long time at a high humidity and at a temperature of about 30 to 40 ° C. In such a case, it is presumed that the suppression effect is also reduced, and a new improvement is desired.

[0004]

The inventor of the present invention has conducted intensive studies to solve the above-mentioned problems. As a result, the present inventors have found that an E content of 20 to 60 mol% and a saponification degree of 90 mol% or more are E.
The laminate formed by laminating a resin composition (A) layer composed of VOH (A1) and an ethylene-vinyl acetate copolymer (hereinafter abbreviated as EVA) (A2) and a carboxyl group-containing EVA (B) layer is as described above. In addition, the resin composition (A) layer can be used in the EVOH (A1).
When (A2) is dispersed, it has been found that the effects of the present invention can be remarkably obtained, and the present invention has been completed.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described specifically. The EVOH (A1) of the present invention has an ethylene content of 20.
-60 mol% (furthermore, 25-50 mol%), and the degree of saponification of the vinyl acetate component is 90 mol% or more (furthermore, 95 mol%).
When the ethylene content is less than 20 mol%, the effect of suppressing the plasticizer under high humidity becomes insufficient. On the other hand, when it exceeds 60 mol%, the barrier property of EVOH decreases, and The object cannot be achieved, and even if the saponification degree is less than 90 mol%, the effect of suppressing the plasticizer under high humidity becomes insufficient, and the object of the present invention cannot be achieved.

The EVOH further comprises a small amount of an α-olefin such as propylene, isobutene, α-octene, α-dodecene, α-octadecene, an unsaturated carboxylic acid or a salt thereof, a partial alkyl ester, a complete alkyl ester, a nitrile. Comonomers such as amides / anhydrides, unsaturated sulfonic acids or salts thereof may be included. Also,
The melt index (MI) of EVOH (A1) is 0.
5 to 50 g / 10 min (210 ° C., 2160 g load) is preferred, and more preferably 1 to 35 g / 10 min (same as above). If the MI is less than 0.5 g / 10 min (same as above), the processability in solution or extrusion coating becomes poor, and if it exceeds 50 g / 10 min (same as above), the stain removal property becomes insufficient, which is not preferable. .

The ethylene-vinyl acetate copolymer (A2) contained in the EVOH (A1) preferably has a vinyl acetate content of 30 to 70% by weight, more preferably 35 to 6% by weight.
When the content is less than 30% by weight, the effect of suppressing the plasticizer becomes insufficient. On the other hand, when the content exceeds 70% by weight, the appearance of the laminate is undesirably poor. The compounding weight ratio of such EVOH (A1) and EVA (A2) (A1) /
(A2) is preferably 95/5 to 50/50, and more preferably 9/5.
0/10 to 70/30 is preferable. If the compounding weight ratio exceeds 95/5, the effect of suppressing the plasticizer becomes insufficient, and if it is less than 50/50, the appearance of the laminate becomes unfavorable.

[0008] The mixing of EVOH (A1) and EVA (A2) is not particularly limited.
By mixing and blending such that VA (A2) is dispersed, the effect of the present invention can be remarkably exhibited. Specifically, the molten state (A1) is melted into the molten state (A1). In mixing (A1) into a molten state, there is no particular limitation, but a multi-screw extruder such as a twin-screw extruder,
Using a single screw extruder or the like, a temperature 20 to 80 ° C. higher than the melting point (typically 190 ° C. to 2 ° C. depending on the type of EVOH)
(A 50 ° C.), and (A2) may be melted by a multi-screw extruder such as a twin-screw extruder, a single-screw extruder or the like in the same manner as (A1). ° C
What is necessary is just to melt at a high temperature.

In order to mix (A1) and (A2) in such a molten state, a method of melt-mixing while extruding from (A2) extruder to (A1) extruder while melt-side feeding, (A1) extruder A method of melt-mixing by solid-side feeding while weighing (A2), a method of melt-mixing while extruding from (A1) to the extruder of (A2) while melt-side feeding.
(A2) While extruding (A1) into the extruder, there is a method of solid-side feeding and melt-mixing, etc., but there is no particular limitation, but in view of the dispersibility of (A2) in (A1). ,
A method of melt-mixing the extruder (A2) to the extruder (A1) while performing melt side feeding is suitably performed. According to this method, (A1) contains (A2) as islands, particles,
It is dispersed in a rod-like shape.

The carboxyl group-containing EVA (B) preferably has a vinyl acetate content of 1 to 40% by weight, more preferably 2 to 30% by mole, and if the content is less than 1% by weight, the layer ( A) Adhesion with A) decreases, and conversely 4
When the content exceeds 0% by weight, the appearance of the laminate becomes poor, and the content of the carboxyl group is preferably 0.5 to 2%.
When the content is less than 0.5 mol%, the adhesiveness to the layer (A) is reduced, and when the content exceeds 20 mol%, the content of the laminate is reduced. The appearance is poor, which is not preferable. In addition, in introducing such a carboxyl group, acrylic acid, methacrylic acid, crotonic acid, maleic acid, fumaric acid, itaconic acid,
Alternatively, an unsaturated carboxylic acid-containing monomer such as an anhydride thereof may be copolymerized with EVA or ethylene and vinyl acetate.

When laminating the resin composition (A) layer and the carboxyl group-containing EVA (B) layer, the resin composition (A) is added to the carboxyl group-containing EVA (B) layer formed in advance into a film or sheet. A) may be laminated, and such lamination methods include solution coating,
Lamination methods such as melt extrusion coating and film lamination (dry lamination) are exemplified. In the solution coating, a solution or dispersion of the resin composition (A) is used, and a mixed solvent of water and an alcohol is used as a solvent at that time, and the amount of water is 30 to 70.
% By weight (the amount of alcohol is 70 to 30% by weight), preferably 40 to 60% by weight (the amount of alcohol is 60 to 40% by weight). There is a problem that the coating is difficult to obtain and the coating becomes opaque. Examples of the alcohol include methanol, ethanol, n-propyl alcohol, iso-propyl alcohol, n-butyl alcohol, iso-butyl alcohol, sec-butyl alcohol, tert-butyl alcohol, etc., and n-propyl alcohol, iso-propyl Alcohol is preferably used.

The concentration of the resin composition (A) in the resin composition (A) solution or dispersion is not particularly limited and can be applied in an arbitrary range, and is usually preferably about 0.5 to 25% by weight. In order to exhibit the effect of the present invention efficiently, 10 to 2
0% by weight is most preferred. In coating the surface of the layer (B) with the solution or dispersion of the resin composition (A), a known method can be adopted, for example, a gravure coater, a reverse roll coater, an air knife coater, a rotor screen coater, and a flat screen. Coaters, sprays, brush coatings, bar coaters and the like can be mentioned, and preferably, a gravure coater or a reverse roll coater is used. Thereafter, it is heated and dried to form a coating layer of the resin composition (A) on the surface of the layer (B). When the resin composition (A) solution or dispersion is applied to paper and dried. The ideal solution viscosity at the time of applying the resin composition (A) solution or dispersion and the subsequent drying temperature are such that the solution viscosity at the time of applying the resin composition (A) solution is 50 to 1000 c.
ps and the subsequent drying temperature may be arbitrarily selected from the range of about 80 to 120 ° C. The time for drying is not particularly limited, but is usually appropriately selected from the range of 10 seconds to 10 minutes (more preferably, 30 seconds to 5 minutes).

The thickness (after drying) of the coating layer of the resin composition (A) is not particularly limited, but is preferably 1 to 50 μm, particularly preferably 2 to 10 μm. The amount of coating (the amount of coating after drying) is 1 to 50 g / m
² is preferable, and ² to 10 g / m ² is more preferable. (The coating amount of the resin composition (A) is the same as described below.) In applying the resin composition (A) solution or dispersion, an adhesive (anchor coat) is usually applied to the surface of the substrate. ) Layer is provided. As such an adhesive, an organic titanium-based adhesive, a two-component reactive polyurethane-based adhesive,
Polyester / isocyanate-based adhesives and the like,
Preferably, a two-component reactive polyurethane adhesive is used.

In melt extrusion coating,
It is preferable that the surface of the layer (B) is subjected to a primer treatment, if necessary. As the primer treatment agent, the above-mentioned organic titanium-based adhesive, two-component reaction type polyurethane-based adhesive, polyester / isocyanate A two-component reactive polyurethane adhesive is preferably used, and the amount of such a primer treatment agent is 0.1.
It is 1 to 10 g / m ² , preferably 0.3 to 5 g / m ² . When the resin composition (A) is melt-extruded, a known melt extruder can be used, and it is preferable that the surface of the (B) layer (primed if necessary) is melt-extruded and coated. In addition, at the time of melt extrusion coating, a support layer such as a polyolefin resin is inserted as necessary in order to perform stable coating of the resin composition (A), and two or more types of melt extrusion coating are performed. You may.

In the film lamination (dry lamination), the surface of the layer (B) is subjected to a primer treatment as required, if necessary, and then an organic titanium-based adhesive,
It is carried out through an adhesive such as a two-component reactive polyurethane adhesive or a polyester / isocyanate adhesive. In this case, the film of the resin composition (A) may be stretched or unstretched. The heat of fusion and the effect of orientation can increase the heat of fusion described below, but if embossing or the like is performed later, there is a possibility of contraction, and in this case, a non-stretched film is preferable. . Further, the thickness of the resin composition (A) film at this time is 5 to 5.
It is preferably 50 μm, more preferably 10 to 20 μm.

In the present invention, the thermoplastic resin (C) is further provided outside the (B) layer of the laminate comprising the resin composition (A) layer / carboxyl group-containing ethylene-vinyl acetate copolymer (B) layer. A layer can be provided, and as the thermoplastic resin (C), specifically, a vinyl chloride resin,
Polyolefin-based resins, polyester-based resins, acrylic-based resins, polystyrene-based resins, polyamide-based resins, and the like can be mentioned. Among them, vinyl chloride resins, polyolefin-based resins, polyester-based resins, and polyamide-based resins are preferably used.

Examples of the polyolefin resin include high-density polyethylene, medium-density polyethylene, (linear) low-density polyethylene, ultra-low-density polyethylene, vinyl acetate, acrylate, butene, hexene,
Polyethylene, polypropylene homopolymer copolymerized with α-olefins such as 4-methyl-1-pentene,
Polypropylene graft copolymerized with ethylene, polypropylene copolymerized with α-olefins such as 4-methyl-1-pentene, poly-1-butene, poly-4-methyl-1-pentene, and unsaturated carboxylic acid And modified polyolefin resins obtained by copolymerization or graft polymerization of acid anhydrides, vinyl silane compounds, epoxy group-containing compounds, etc., such as high-density polyethylene, medium-density polyethylene, (linear) low-density polyethylene, Polyethylene such as ultra-low density polyethylene, polypropylene homopolymer, polypropylene obtained by graft copolymerizing ethylene, polypropylene such as polypropylene obtained by copolymerizing α-olefins, and EVA are preferably used.

In producing a laminate having the layer structure of (A) layer / (B) layer / (C) layer, a laminate composed of (A) layer / (B) layer is converted into (C) layer. A method of laminating, a method of laminating (A) on the layered body composed of the layer (B) / the layer (C) by the above-mentioned methods, a method of laminating the layers (B) and (A) on the layer (C), (A) ~
It can be performed by a method of co-extrusion of (C) or the like.

Thus, the resin composition (A) layer / carboxyl group-containing EVA (B) layer or the resin composition (A) layer / carboxyl group-containing EVA (B) layer / thermoplastic resin (C)
A laminate having a layer configuration of layers can be obtained. In the present invention, in addition to this, the resin composition (A) layer is a, the carboxyl group-containing EVA (B) layer is b, and the thermoplastic resin ( C) When layer is c, a / b / c (polyolefin resin), a / b / c (vinyl chloride resin), c (polyolefin resin) / a / b / c (polyolefin resin), a / b / c b / c (polyolefin resin) / c (vinyl chloride resin), a / b / c (polyester resin) / c
(Vinyl chloride resin), c (acrylic resin) / a / b /
c (vinyl chloride resin) and the like, in particular, (front side) a / b / c (vinyl chloride resin) (back side), (front side) a / b / c (polyolefin resin) /
Those having a laminated structure of c (vinyl chloride resin) (back side) are useful for interior material applications such as wallpaper and decorative sheets, and the back of the thermoplastic resin (C) layer of these laminates is paper or Japanese paper , Nonwoven fabric, asbestos, paper, glass, fiber, cloth, etc. for wallpaper can be applied with adhesive (adhesive) and then laminated by calendering method, laminating method, etc. A vinyl chloride resin (C) is applied using a coater, a roll coater, or a flat screen coater, and then the resin composition (A) and the carboxyl group-containing EVA (B)
Can be laminated. When such a wallpaper is to be attached to a wall, a known adhesive such as a commonly used aqueous starch paste may be applied to the substrate, and may be pressed against the wall,
It is also useful to form an uneven pattern by embossing at least one surface of these laminates in order to enhance the added value of design and the like. Imitation, an abstract pattern, a stone pattern, a cloth pattern, a line pattern, a wood pattern, a combination thereof, and the like can be used, and the depth of the concavo-convex pattern formed by the embossing varies depending on the pattern. However, in the case of wallpaper use, it is usually preferable to form the layer to have a thickness of about 1 to 200 μm because it gives a good three-dimensional effect.

It is also useful to foam a layer of vinyl chloride resin (C) or the like in order to impart design properties such as wallpaper.
In this case, the resin composition (A) and the carboxyl group-containing EV
The laminating step of the laminate of A (B) may be performed before or after the foaming treatment. However, in the case of solution coating, it is preferable to perform the foaming treatment after laminating the resin composition (A). In the case of the method, it is preferable to laminate the resin composition (A) after the foaming treatment. Further, it is preferable that the layer (B) be sequentially applied in the case of solution coating, and it is preferable that the layer (A) is previously laminated with the layer (A) in the case of film lamination.

As a method of forming a concavo-convex pattern by embossing, a method of embossing using a normal heat embossing machine on which a desired concavo-convex pattern is formed, or a method of forming a desired concavo-convex pattern on a cooling roll or the like of an extrusion coater. A so-called mechanical embossing method, such as a so-called doubling embossing method, in which a laminated body of the resin composition (A) and the carboxyl group-containing EVA (B) is formed at the same time as using the applied embossing roll, or a foaming inhibitor or a foaming accelerator. A chemical embossing method or the like is used in which an ink containing an agent is printed and an uneven pattern is formed in a foaming process. Also, a / b
/ C (vinyl chloride resin), a / b / c (polyolefin resin), a / b / c (polyolefin resin) / c
(Polyolefin resin), a / b / c (polyolefin resin) / c (polyolefin resin) / c (polyolefin resin) ..., a / b / c (vinyl chloride resin) / a, a / b / C (polyolefin resin) / a,
a / b / c (polyolefin resin) / c (polyolefin resin) ... / a
It is useful as an agricultural film (sheet).

In the present invention, a plasticizer (naturally contained in the soft vinyl chloride resin layer), a stabilizer, a surfactant, a crosslinkable substance (epoxy compound, polyvalent metal, inorganic Or organic polybasic acids or salts thereof), fillers, coloring agents, fibers (glass fibers, carbon fibers, etc.) as reinforcing materials, matting agents (talc, silica-based powder, resin fine powder such as polyethylene, polyurethane, etc.) ) And the like can be blended as long as the effects of the present invention are not impaired. Note that a / b, a / b / c,...
Although the thickness of a, b and c in the laminate such as can not be specified unconditionally depending on the use and the like, usually, a is 1 to 50μ
m, b is 0.1 to 10 μm, c is 50 to 10,000 μm
It is arbitrarily selected from the range of the degree.

The laminate of the present invention thus obtained can be used as a decorative sheet for finishing interior wall paper or furniture, as well as office supplies such as desk mats, notebooks and files using a cover made of PVC leather. It can be used for stationery, interior materials for automobiles, agricultural materials such as agricultural films, and daily necessities (vinyl mats, umbrellas, etc.), among which, as described in detail above, such as wallpaper and decorative sheets. It is very useful for interior materials and agricultural films (sheets), and especially useful for wallpaper with excellent stain resistance (stain removal properties).

[0024]

EXAMPLES The method of the present invention will be specifically described below with reference to examples. Unless otherwise specified, “%” and “parts” all mean on a weight basis. Example 1 Ethylene content: 44 mol%, degree of saponification: 99.7 mol%,
MI 12g / 10min (210 ° C, 2160g load) E
Put 80 parts of VOH (A1) into a twin screw extruder at about 220 ° C.
Separately, using a single screw extruder, 20 parts of EVA (A2) having a vinyl acetate content of 33% melted at about 190 ° C. is melt-mixed from the side surface of the twin screw extruder by a melt side feed method to obtain a resin composition (A (Note that (A1) and (A
The mixing ratio of 2) was calculated from the discharge amount). In addition, when the pellets of the resin composition (A) were observed with a scanning electron microscope, (A2) particles of about 3 μm were dispersed in (A1). Next, the resin composition (A) was formed into a film having a thickness of 20 μm by a single screw extruder. Furthermore, 1.5 g / m ² of an isocyanate-reactive polyurethane adhesive (AD-335A / cat-10, manufactured by Toyo Morton Co., Ltd.) was applied to one surface.
With a coated thickness of 10 μm, vinyl acetate content of 33%,
The above-mentioned film was dry-laminated on the adhesive surface of a maleic anhydride-modified EVA (B) sheet having a carboxyl group content of 1.5 mol% to produce a laminate. The following evaluation was performed using the obtained laminated body.

(Stain Removal Property) Resin Composition (A) of Laminate
Hot coffee at about 70 ° C. is applied or dropped on the layer surface to a size of about 2 cm in diameter, left standing at 20 ° C. for 24 hours, and then wiped off with a bleached cotton soaked in water. The evaluation was as follows. In addition, it performed similarly about the soft polyvinyl chloride resin sheet single layer. Separately, the obtained laminate was left to stand at 40 ° C. for 1 day, and the same evaluation was performed. In addition, shoe ink (wiped with a neutral detergent), softening, and water-based magic (wiped with a commercially available detergent (Magic Lin)) were similarly evaluated. ○ −−− Completely wiped off and no trace of contamination is observed. △ −−−− Although traces of contamination are observed, traces are smaller than in the case of the soft polyvinyl chloride resin sheet alone layer. C: Traces equivalent to those of a single layer of the soft polyvinyl chloride resin sheet are observed.

(Plasticizer migration) Laminate (10 cm × 10
cm) is placed on a flat surface with the resin composition (A) layer facing upward, and a plasticizer-free vinyl chloride resin plate having a thickness of 3 mm and a diameter of 5 cm is in contact with the surface of the resin composition (A) layer. Is placed, a uniform load of 50 g / cm ² is applied to
The weight change (plasticizer transfer amount) (g / m ² ) of the vinyl chloride resin plate after standing at 0 ° C. and 90% RH for 10 days was measured.
The evaluation was as follows. ○ −−− Weight change is less than 2 g / m ² × −−− Weight change is 2 g / m ² or more (Chemical resistance) About 1 cc of ethanol is dropped on the surface of the resin composition (A) layer of the laminate, and the normal state The surface state after standing for 1 hour was visually observed and evaluated as follows. ○ −−− No abnormality × −−− Swelling is observed

Example 2 In the laminate of Example 1, the surface of the (maleic anhydride-modified) carboxyl group-containing EVA (B) was further coated with an isocyanate-reactive polyester-based adhesive (Polyester LP033 manufactured by Nippon Synthetic Chemical Industry Co., Ltd.). / Coronate L manufactured by Nippon Polyurethane Co.) was applied at 1.5 g / m ² , and a 400 μm thick vinyl chloride resin (C) sheet (50% plasticizer content) was laminated. And evaluated similarly.

Example 3 In Example 1, (B) was a vinyl acetate content of 7
%, A maleic anhydride-modified EVA (B) having a carboxyl group content of 3 mol% was used and evaluated in the same manner. Example 4 A laminate was obtained in the same manner as in Example 2 except that the mixing weight ratio of EVOH (A1) and EVA (A2) was changed to (A1) / (A2) = 70 parts / 30 parts. Was evaluated.

Example 5 In Example 1, EVOH (A1) was changed to ethylene content 3
2 mol%, saponification degree 99.8 mol%, MI 12 g / 10
A laminate was obtained in the same manner as above except that the EVOH was the same (same as above), and the same evaluation was performed. Example 6 In Example 1, L was used instead of the vinyl chloride resin (C).
A laminate was obtained in the same manner except that LDPE (linear low-density polyethylene) (C) was used, and the laminate was similarly evaluated.

Comparative Example 1 In Example 1, the resin composition (A) was replaced with EVOH (A1).
A laminate was obtained in the same manner except that the laminate was used alone, and the laminate was similarly evaluated. Comparative Example 2 In Example 1, a vinyl acetate content of 33 was used in place of (maleic anhydride-modified) carboxyl group-containing EVA (B).
% Of unmodified EVA was performed in the same manner to obtain a laminate, which was similarly evaluated. Table 1 shows the evaluation results of the examples and the comparative examples.

[0031]

[Table 1] Stain removal plasticizer transferability Chemical resistance No treatment Example 1 after standing treatment ○ ○ ○ ○ 〃 2 ○ ○ ○ ○ 〃 3 ○ ○ ○ ○ ○ ４ 4 ○ ○ ○ ○ 〃 5 ○ ○ ○ ○ ６ 6 ○ ○ ○ ○ Comparative Example 1 ○ × × × 〃 2 ○ × × ×

[0032]

The laminate of the present invention has excellent antifouling properties (stain removal properties), chemical resistance, etc., because the resin composition layer comprising EVOH and EVA and the carboxyl group-containing EVA layer are laminated. , Office supplies such as desk mats, office supplies such as desk mats, notebooks and files using PVC leather covers, interior materials for automobiles, agricultural films, etc. It is also very useful for laminated materials such as agricultural materials and daily miscellaneous goods (vinyl mats, umbrellas, etc.).

Claims (9)

[Claims] 1. A saponified ethylene-vinyl acetate copolymer (A1) having an ethylene content of 20 to 60 mol% and a saponification degree of 90 mol% or more, and an ethylene-vinyl acetate copolymer (A2).
A laminate comprising a resin composition (A) layer composed of: and a carboxyl group-containing ethylene-vinyl acetate copolymer (B) layer. 2. The resin composition (A) layer wherein the ethylene-vinyl acetate copolymer (A2) is dispersed in the saponified ethylene-vinyl acetate copolymer (A1). The laminate according to the above. 3. A compounding weight ratio of a saponified ethylene-vinyl acetate copolymer (A1) having an ethylene content of 20 to 60 mol% and a saponification degree of 90 mol% or more to an ethylene-vinyl acetate copolymer (A2) ( 3. The laminate according to claim 1, wherein (A1) / (A2) is from 95/5 to 50/50. 4. A carboxyl group-containing ethylene-vinyl acetate copolymer (B) having a carboxyl group content of 0.5 to 2
The laminate according to any one of claims 1 to 3, wherein the amount is 0 mol%. 5. The laminate according to claim 1, wherein a thermoplastic resin (C) is further laminated outside the carboxyl group-containing ethylene-vinyl acetate copolymer (B) layer. . 6. The thermoplastic resin (C) is a vinyl chloride resin,
The laminate according to claim 5, wherein the laminate is any one of a polyolefin resin, a polyester resin, and a polyamide resin. 7. The laminate according to claim 1, wherein the laminate is formed by any one of a solution coating method, a coextrusion method, and a dry lamination method. 8. The laminate according to claim 1, wherein the laminate is used for interior materials or agricultural films. 9. The laminate according to claim 8, wherein the interior material is used for wallpaper.