JPH07257576A - Sheet pallet - Google Patents

Abstract

(57) [Summary] [Structure] Crosslinking comprising a curable composition containing one or more selected from the group consisting of acrylate oligomers and acrylate monomers on one or both sides of a thermoplastic resin base sheet A sheet pallet with a cured film. [Effects] The present invention makes it possible to supply a sheet pallet having excellent scratch resistance and abrasion resistance, excellent workability, and a significantly improved life cycle. In addition, this sheet pallet reduces dust and dirt adhesion and work problems due to the close contact between sheets.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet pallet used for cargo handling work. For more details,
The present invention relates to a sheet-like load carrying sheet for loading and holding a plurality of loads and sliding a platen downward to move and store the loads together with the loads.

[0002]

[Prior Art] In the field of freight logistics, resin sheet pallets have rapidly spread in place of conventional wooden pallets and plastic pallets because of their advantages such as cost reduction, storage and storage space savings, and ease of manufacture. is doing. With sheet pallets, the friction coefficient of the surface on which luggage is loaded (hereinafter referred to as the loading surface) is required to be greater than the coefficient of friction of the surface on which the platen is slid (hereinafter referred to as the back surface of the loading surface). It is disclosed.

For example, in Japanese Utility Model Publication No. 55-16821, there is a technique in which the upper surface, which is a loading surface, is formed to be rougher than the back surface (lower surface), and in Japanese Utility Model Publication No. 62-40905, a bag made of a synthetic resin film is used as a load. It is disclosed that the roughness of the loading surface is smaller than that of the back surface when transporting or transferring a package having such an exterior. In addition, the technique of applying an adhesive to the loading surface is disclosed in Japanese Utility Model Laid-Open No. 56-28931.
No. 24 discloses a technique of applying a polymer emulsion to all or part of the loading surface. However, with these sheet pallets, damage and
There was a problem with long-term use that is easily rubbed and is used repeatedly.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned conventional problems, is excellent in scratch resistance and abrasion resistance, is excellent in workability during loading, and has a long service life. The purpose is to provide a pallet.

[0005]

The present invention has the following constitution. (1) A sheet pallet having a crosslinked cured film on one or both sides of a thermoplastic resin base sheet. (2) A sheet pallet obtained by laminating a thermoplastic resin film having a crosslinked cured film on one side or both sides of a thermoplastic resin sheet. (3) The sheet pallet according to the above item 1 or 2, wherein the coefficient of friction of the loading surface is larger than the coefficient of friction of the back surface of the loading surface. (4) The cross-linked cured film is halftone dot-shaped, and the height of the convex portion is 5 to 5.
The sheet pallet according to the above 1st paragraph, which is 50 μm. (5) The crosslinked cured film is obtained by curing a curable composition containing one or more selected from the group consisting of acrylate-based oligomers and acrylate-based monomers. Sheet pallet. (6) The sheet pallet according to the above item 1 or 2, wherein the crosslinked cured film has antistatic properties. (7) The sheet pallet according to the above item 1 or 2, wherein the crosslinked cured film contains an inorganic lubricant to form a loading surface. (8) The sheet pallet according to the above item 1 or 2, wherein the crosslinked cured film contains at least one selected from an inorganic type lubricant and an organic type lubricant to form the back side of the loading surface. (9) The sheet pallet according to the above item 1, wherein the area occupied by the crosslinked cured film is 10 to 90% of the surface area of the thermoplastic resin sheet having conductivity. (10) The sheet pallet according to the above item 1 or 2, wherein the crosslinked cured film is an electron beam cured film. (11) A crosslinking composition obtained by curing a curable composition containing one or more selected from the group consisting of acrylate oligomers and acrylate monomers on the surface of a thermoplastic resin film having a thickness of 10 to 100 μm. A method for producing a sheet pallet, in which a film having a film is laminated on a thermoplastic resin sheet having a thickness of 0.5 to 5 mm.

The present invention will be described in detail below. Examples of the thermoplastic resin base sheet used in the sheet pallet of the present invention include polyolefin resins such as polyethylene, polypropylene, and ethylene / vinyl acetate copolymers; polystyrene, acrylonitrile / butadiene / styrene copolymers, acrylonitrile / Styrene resin such as styrene copolymer; acrylic resin such as polymethylmethacrylate; 6-nylon, 66-nylon,
Polyamide-based resins such as 12-nylon and 6 / 12-nylon; polyester-based resins such as polyethylene terephthalate and polybutylene terephthalate; thermoplastic resin such as polyvinyl chloride-based resin and a single sheet or foamed sheet of a mixture thereof. , Laminated sheets, and the like. As the laminated sheet, a thermoplastic resin sheet (thickness 0.5 to 5 mm, preferably 1 to 2 mm) and a film having a crosslinked cured film formed on a thermoplastic resin film (thickness 10 to 100 μm) or a film having other functions It also includes a stack of layers. Examples of the thermoplastic resin film include the same materials as those used for the above-mentioned sheet. The main component of the laminated sheet and the main component of the film may be the same or different as long as they are practical.

These thermoplastic resin sheets include heat resistance stabilizers, weather resistance stabilizers, plasticizers, lubricants, slip agents, antibacterial agents,
Antifungal agents, antistatic agents, charge transfer polymers, nucleating agents, flame retardants, pigments, dyes, inorganic fillers, organic fillers and the like can be added according to the purpose.

Further, the thermoplastic resin sheet may be provided with conductivity for the purpose of avoiding adhesion of dirt due to static electricity and adhesion (blocking) trouble between the sheets. As the sheet imparted with the conductive property, carbon black, metal particles, metal or metal oxide coated particles, carbon fiber, stainless steel fiber, metal or metal oxide coated fiber, etc. are blended as necessary, a single body sheet, a foamed sheet Alternatively, a laminated sheet may be used, or a conductive non-woven fabric or conductive material obtained from conductive fibers such as carbon fibers, stainless steel fibers, copper compound-coated synthetic fibers, carbon black-containing synthetic fibers, and carbon black-containing composite synthetic fibers. A knitted / woven fabric may be fused and integrated on the surface of the thermoplastic resin sheet.

The surface of the thermoplastic resin sheet may be subjected to surface treatment such as chemical treatment, coupling treatment, primer treatment, plasma treatment, and corona discharge treatment in order to improve the adhesion of the crosslinked cured film. Good.

The cross-linked cured film in the sheet pallet of the present invention may be on both the loading surface and the back surface of the sheet pallet, but either the loading surface or the back surface may be selected depending on the required durability performance, operating environment conditions and the like. It may be on the surface, or may be partially formed to the extent that the damage resistance is not impaired. In addition, for the purpose of preventing troubles due to the close contact of the sheets, a crosslinked cured film having a pattern shape such as a dot shape, a mesh shape, and a stripe shape is preferably formed, but with a cardboard box, a paper bag or a bag packaged with a film. For the purpose of the wedge effect to improve the frictional force with the loading surface of the sheet pallet, the pattern shape is a halftone dot and the height of the halftone dot is 5
It is preferable that the thickness is at least μm. Halftone dot height is 50 μm
Those that exceed the range require a lot of energy even if the curing means is an electron beam, and thus are impractical.

In the sheet pallet of the present invention, the ratio of the area occupied by the cross-linked cured film to the sheet surface area (hereinafter, occupied area ratio R _S ) is as follows when the thermoplastic resin sheet is non-conductive.
It is 10 to 100%. Further, in the case of a conductive sheet, R _S is preferably 10 to 90%. When R _S is less than 10%, the damage resistance of the sheet pallet is not sufficient, and when it exceeds 90%, the conductivity is reduced. The conductive performance of the thermoplastic resin sheet will not be exhibited.

The surface roughness of the thermoplastic resin sheet is not particularly limited, but it is necessary to make the surface state so as not to cause work troubles such as load collapse when pushing and pulling a sheet pallet carrying a load. There is. When the surface roughness of the thermoplastic resin sheet is as small as 1 to 20 μm, the crosslinked cured film is formed in a dot shape having a height of the convex portion of 5 to 50 μm, and the surface roughness of the thermoplastic resin sheet is 20 to 200 μm. In the case of a large size, the work troubles can be eliminated by applying a solid cross-linked cured film.

The crosslinked cured film of the sheet pallet of the present invention is obtained by curing a curable composition containing one or more selected from the group consisting of acrylate oligomers and acrylate monomers. To the curing composition, if necessary, a photopolymerization initiator, a polymerization inhibitor, a viscosity modifier, a solvent, a UV absorber, a UV stabilizer, a leveling agent, a matting agent, a pigment, a dye, a filler, etc. may be added. Good.

The acrylate-based oligomer used in this curable composition includes polyurethane acrylate-based, polyester acrylate-based, epoxy acrylate-based,
Phenol acrylate, etc. may be mentioned, but the friction coefficient of the cross-linked cured film differs depending on the type of oligomer. Can be resolved. In particular, a crosslinked cured film obtained by curing a curable composition containing a urethane acrylate-based oligomer as a main component has a large friction coefficient, and thus is suitably used for the loading surface of a sheet pallet.

The polyurethane acrylate oligomer is a reaction product of 2-hydroxyethyl acrylate, diisocyanate and polyol, and the diisocyanate is, for example, 2,4 tolylene diisocyanate, hexamethylene isocyanate, methylene phenylene diisocyanate, xylene diisocyanate, 1,2.
4-naphthylene diisocyanate, phenylene diisocyanate and the like, and as the polyol, for example, ethylene glycol, triethylene glycol, propylene glycol, 1,4 butanediol, 1,6-hexanediol, neopentyl glycol, pentaerythritol, glycerin, trimethylol. Examples include propane and the like.

Polyester acrylate oligomers include acrylic acid and polybasic carboxylic acid (or anhydride)
And a dehydration reaction product of a polyol, and examples of the polybasic carboxylic acid include trimellitic acid, pyromellitic acid, succinic acid, maleic acid, phthalic acid, itaconic acid, tetrahydrophthalic acid, hexahydrophthalic acid, and these. Acid anhydrides, adipic acid, sebacic acid, isophthalic acid, terephthalic acid, fumaric acid and the like, and examples of the polyol include ethylene glycol, triethylene glycol, propylene glycol, 1,4-butanediol and 1,6-hexane. Examples thereof include diol, neopentyl glycol, pentaerythritol, glycerin and trimethylolpropane.

The epoxy acrylate oligomer is an addition reaction product of an epoxy compound and acrylic acid, and examples of the epoxy compound include diglycidyl phthalate, propylene glycol diglycidyl ether, vinyl cyclohexene diepoxide, epoxidized phenol resin, and epoxidation. Soybean oil, epoxidized polybutadiene,
Examples thereof include bisphenol A type epoxy resin.

Examples of the phenol acrylate-based oligomer include phenol ethylene oxide-modified acrylate and nonylphenol ethylene oxide-modified acrylate.

Further, a special acrylic oligomer other than the above oligomers may be used alone or in combination.

Further, as the acrylate-based reactive monomer, for example, diethylene glycol diacrylate,
1,6-hexanediol acrylate, neopentyl glycol acrylate, trimethylolpropane triacrylate, phenyl cellosolve acrylate, 2-
Examples thereof include ethylhexyl acrylate and phenol ethylene oxide acrylate.

In order to prevent dust and dirt from being attached due to static electricity and troubles in work due to the close contact of sheets with each other, in addition to the above-mentioned method for imparting conductivity to the thermoplastic resin sheet, the crosslinked cured film is provided with conductivity. May be given. As a method of imparting antistatic property to the crosslinked cured film, there is a method of mixing an antistatic agent, a conductive filler, a charge transfer complex type polymer and the like in the curable composition, but in order to enable repeated use, An antistatic agent and a conductive filler capable of reacting with the curable composition are particularly preferably used.

The antistatic agent may be any of a nonionic surfactant, a cationic surfactant, an anionic surfactant and an amphoteric surfactant, but enhances the durability of the antistatic performance, and For the purpose of reducing the performance deterioration after washing with water and increasing the durability of the sheet pallet,
An antistatic agent capable of reacting with the acrylate-based prepolymer and the acrylate-based reactive monomer is preferable, and examples thereof include (meth) acryloyloxyethyltrimethylammonium chloride, (meth) acryloyloxyethyltrimethylammonium bromide, and (meth) acryloyloxyethyltrimethyl. Ammonium methyl sulfate, polyethylene glycol mono (meth) acrylate, acrylic acid adduct to copolymer containing polyethylene glycol mono (meth) acrylate and glycidyl (meth) acrylate, polyethylene glycol mono (meth) acrylate and (meth) acrylic acid Glycidyl acrylate adduct to copolymers containing 3-chloro-
2-hydroxypropyl (meth) acrylate, 3-bromo-2-hydroxypropyl (meth) acrylate,
Examples include methyl oleic acid sodium taurate phosphate, trialkyl alkyl ether ammonium salt, trialkyl alkyl ether ammonium sulfate, and alkylbenzene sulfonic acid triethanol (methanol) amine. Those containing a quaternary ammonium group are antistatic. It is particularly preferably used because it has excellent effects and can reduce the addition rate. The desired antistatic effect can be obtained with these antistatic agents at an addition rate of about 2 to 20% by weight.

As the conductive filler, metal-based conductive fillers such as metals, alloys, metal oxides, composite metal oxides and metal-coated inorganic fillers are preferably used, and in addition, carbon black, graphite and carbon micro beads. Carbon type such as is also used. The shape of the conductive filler is not particularly limited, and may be granular, fibrous, or the like, but is selected so that the suitability for coating as a curable composition is not hindered. These conductive fillers are granular and 30 to 70% by weight, and fibrous fillers are 5 to 30% by weight, and the desired antistatic property can be obtained.

The anti-friction agent is intended to improve scratch resistance, and as a method therefor, there are a method of increasing the hardness of the crosslinked cured film itself, a method of reducing friction coefficient to make it slippery and less likely to be damaged. is there. As a specific method of the former, there is a method of mixing an inorganic lubricant such as alumina, silicon carbide, silicon oxide, iron oxide, etc., alone or in combination with the curing composition, and as a specific method of the latter, , A fluorine-based polymer, a silicon-based polymer, a silicon monomer having an unsaturated double bond, an organic anti-friction agent such as a fatty acid amide may be mixed with the curable composition.

In the case of the sheet pallet of the present invention, the scratch resistance is improved, so that the repeated use is greatly improved.
It is desirable that the coefficient of friction of the loading surface is larger than the coefficient of friction of the back surface, and since the friction coefficient decreases in the case of an organic lubricant, when the crosslinked cured film is formed on the mounting lower surface, the crosslinked cured film is formed. It is preferable that only an inorganic lubricant is added to the crosslinked cured film, and if a crosslinked cured film is formed on the back side of the loading surface, the crosslinked cured film has an inorganic lubricant and an organic lubricant. It is preferable to add at least one or more lubricants.

In the step of forming the crosslinked cured film, a thermoplastic resin sheet (thickness: 0.5 to 5 mm, preferably 1 to 2) is used.
mm) and then apply the curing composition to the sheet.
Method of curing, thermoplastic resin film (thickness 10 to 1
00 μm, preferably 10 to 30 μm), a method of laminating a film obtained by applying and curing the curing composition to the thermoplastic resin sheet during sheeting, or a thermoplastic resin film (thickness 10 to 100 μm, preferably 10 to 3).
0 μm) with a curing composition applied and cured and a thermoplastic resin sheet (thickness 0.5 to 5 mm, preferably 1
Up to 2 mm) by a known lamination technique such as wet lamination, dry lamination, hot melt lamination and the like. As a curing means of the curing composition, room temperature curing, heating furnace, infrared irradiation,
There are UV irradiation, electron beam irradiation, etc. In the case of electron beam irradiation, the energy required for curing is small and the productivity is good. Moreover, since a polymerization initiator is not used, there is little influence on the curing by the filler, and even a relatively thick coating film can be cured. It is preferably used in the present invention because it has advantages such as the following. The electron beam irradiation is performed by an electron beam accelerator using the scanning beam method or curtain beam method.
It is carried out in a ₂ gas atmosphere (O ₂ concentration of 400 ppm or less), and the curing conditions of the coating film are electron beam voltage 125 in the case of electron beam irradiation.
˜300 kV, dose 1˜20 Mard. Examples of the coating device for the curable composition include blade coaters, knife coaters, roll coaters, direct coaters, and various print type coaters such as screens, offset, gravure, and flexo.

[0027]

EXAMPLES The present invention will be specifically described below with reference to Examples and Comparative Examples, but the present invention is not limited thereto. The performance of the sheet pallet was evaluated in terms of friction coefficient, scratch resistance and surface resistivity. These evaluation methods are shown below.

1) Static friction coefficient is ASTM D 189
4m, thickness 2m against the loading surface of the sheet pallet
m, surface roughness (10 specified in JIS B 0601)
The static friction coefficient of the thick paper surface having a point average roughness of 36 μm and the static friction coefficient of the steel plate surface having a surface roughness of 2 μm with respect to the back surface of the loading surface were measured under a load condition of 15.6 g / m ² . 2) The scratch resistance was measured by measuring the weight loss after 500 tests using a rotary abrasion tester (manufactured by Toyo Seiki Seisakusho Co., Ltd.) and a wear wheel CS17 (manufactured by Taber). 3) The surface resistivity is measured by Hire manufactured by Mitsubishi Petrochemical Co., Ltd.
Conducting was performed by using sta and bringing the conductive rubber into contact with the measuring electrode.

Curing compositions A to G used in the examples
The component ratio of is shown in Table 1 below.

[Table 1]

The substrate sheets used in Examples and Comparative Examples are shown below. Substrate sheet A: polypropylene sheet containing 20% by weight of talc (thickness: 1.5 mm, surface roughness R _Z of both front and back is 10)
The front and back surfaces (0 μm) were subjected to corona treatment to have a wetting tension of 42 dyne / cm. This sheet is a non-conductive sheet. Substrate sheet B: polypropylene-based sheet containing 20% by weight of PAN-based carbon fiber (both surface roughness R _{Z of} front and back surfaces is 1
Corrosion treatment is applied to the surface of
It was set to 0 dyne / cm. This sheet is a conductive sheet.

Example 1 After the curable composition A was applied to the entire surface of one side of the base sheet a (100% of coating area), an electron curtain conveyor type electron beam irradiation apparatus (Electron EPZ-2 type manufactured by ESI) was used. ) In an N ₂ atmosphere (O ₂ concentration 200 pp
m) was irradiated with an electron beam at an accelerating voltage of 160 kV and a dose of 6 Mard to form a crosslinked cured film (thickness 10 μm), and a sheet pallet having the surface on which the crosslinked cured film was formed as a loading surface was obtained.

Example 2 A crosslinked cured film was formed in the same manner as in Example 1 except that the curable composition was changed to B, and the surface on which this crosslinked cured film was formed was different from that of the loading surface as in Example 1. The obtained sheet pallet was obtained. Example 3 The curable composition A was applied to the surface of the base material sheet b to be the loading surface, and the curable composition D was applied to the back surface thereof, and the pitch was 1000.
After being applied in a dot shape of 250 μm □, which is μm (the coating area ratio R _S is 6% each), a crosslinked cured film (thickness is 20 μm) was formed in the same manner as in Example 1 to obtain a sheet pallet.

Examples 4 to 6 A sheet pallet was obtained in the same manner as in Example 3 except that the coating conditions of the curable composition were changed.

Example 7 The curable compositions B and G were applied to the surface of the base material sheet a which became the loading surface.
The composition G for curing was solid-coated on the back surface thereof (coating area 100%) and cured in the same manner as in Example 1 to form a crosslinked cured film having a thickness of 10 μm, and a sheet pallet was obtained.

Example 8 A crosslinked cured film was formed in the same manner as in Example 7 except that the curable composition G was applied on both sides of the base sheet a to obtain a sheet pallet.

Example 9 Curing composition C was applied to the surface of the base material sheet b which became the loading surface, and curing composition E was applied to the back surface of the substrate sheet b, with a pitch of 500 μm.
250 μm □ halftone dot (coating area ratio R _S is 25
%) And then a crosslinked cured film was formed according to the method of Example 1 to obtain a sheet pallet.

Example 10 A sheet pallet was obtained in the same manner as in Example 9 except that F was used instead of the curable composition E.

Example 11 A curable composition F was provided on one surface of a base sheet b at a pitch of 500 μm.
250 μm □ halftone dots (the coating area ratio R _S is 25
%) And then cured in the same manner as in Example 1 to form a crosslinked cured film (thickness 20 μm), and a sheet pallet having the surface on which the crosslinked cured film was formed as the back surface of the loading surface was obtained.

Comparative Examples 1 and 2 The base sheet a was used as Comparative Example 1 and the base sheet b was used as Comparative Example 2. The sheet pallets of Examples 1 to 11 and the sheets of Comparative Examples 1 and 2 were tested by the above-described predetermined method and evaluated. The results are shown in Tables 2 and 3.

[0040]

[Table 2]

[0041]

[Table 3]

Example 12 A curable composition A was applied to one surface of a polypropylene film having a thickness of 15 μm, the surface of which was corona-treated, by a solid coating method.
Using an electron curtain type electron beam irradiation device, an electron beam was irradiated in an N ₂ atmosphere (O ₂ concentration 200 ppm) at an acceleration voltage of 160 kV and a dose of 6 Mard to form a 10 μm crosslinked cured film. The rate of formation of the film having the crosslinked cured film was 300 m / min. At the time of sheeting (speed: 5 m / min) of a polypropylene sheet (1.5 mm) containing 20% by weight of talc, a film having the crosslinked cured film was laminated from one side of a melted polypropylene resin. A sheet pallet of laminated sheets having a crosslinked cured film on one surface was obtained. The characteristics of the sheet pallet were the same as those of Example 1. The processing speed of the electron beam irradiation device was much faster than that in Example 1. Comparative Example 3 A sheet pallet having a coating film with a thickness of 50 μm was obtained by coating and drying ethylene-vinyl acetate based Emulsion (Sumitomo Chemical Co., Ltd., trade name Sumikaflex 500) on the loading surface of the base material sheet a. . The loading surface of the sheet pallet had a high static friction coefficient of 0.42, but it was 4 in the scratch resistance evaluation using a rotary abrasion tester.
The amount was 50 mg, which was easily damaged and could not withstand repeated use.

[0043]

The present invention is excellent in scratch resistance and wear resistance,
It is possible to supply a sheet pallet with excellent workability and a significantly improved life cycle. In addition, this sheet pallet reduces dust and dirt adhesion and work problems due to the close contact between sheets. In addition, the production method of the sheet pallet in which the crosslinked cured film is formed on the thermoplastic resin film and then the thermoplastic resin sheet is laminated is superior in productivity to the production method of the sheet pallet in which the crosslinked cured film is formed on the thermoplastic resin sheet. There is.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuya Watanabe 2-17, Tatsumidai Higashi, Ichihara, Chiba (72) Inventor Noriaki Harada 2-17, Tatsumidai Higashi, Ichihara, Chiba (72) Inventor, Toru Suzuki Shiga 1 of 2 Hie-cho, Kosai-cho, Koga-gun A ▲ A ▼ Lupi ▲ I ▼ Top Plastic Co., Ltd. (72) Inventor Saburo Nishida 1-15-9 Osaki, Shinagawa-ku, Tokyo Inside Mitsumura Inprint Co., Ltd.

Claims (11)

[Claims] 1. A sheet pallet having a crosslinked cured film on one or both sides of a thermoplastic resin base sheet. 2. A sheet pallet formed by laminating a thermoplastic resin film having a crosslinked cured film on one side or both sides of a thermoplastic resin sheet. 3. The friction coefficient of the loading surface is greater than the friction coefficient of the back surface of the loading surface.
The listed sheet pallet. 4. The sheet pallet according to claim 1 or 2, wherein the crosslinked cured film has a halftone dot shape and the height of the convex portion is 5 to 50 μm. 5. The crosslinked cured film is obtained by curing a curable composition containing one or more selected from the group consisting of acrylate-based oligomers and acrylate-based monomers. Sheet pallet. 6. The sheet pallet according to claim 1, wherein the crosslinked cured film has an antistatic property. 7. The sheet pallet according to claim 1 or 2, wherein the crosslinked cured film contains an inorganic antifriction agent to form a loading surface. 8. The sheet pallet according to claim 1 or 2, wherein the crosslinked cured film contains at least one selected from an inorganic lubricant and an organic lubricant to form the back surface of the loading surface. 9. The sheet pallet according to claim 1, wherein the area occupied by the crosslinked cured film is 10 to 90% with respect to the surface area of the conductive thermoplastic resin sheet. 10. The sheet pallet according to claim 1, wherein the crosslinked cured film is an electron beam cured film. 11. A thermoplastic resin film having a thickness of 10 to 100 μm is obtained by curing a surface of a curing composition containing one or more selected from the group consisting of acrylate-based oligomers and acrylate-based monomers. A method for producing a sheet pallet, in which a film having a crosslinked cured film is laminated on a thermoplastic resin sheet having a thickness of 0.5 to 5 mm.