KR102409672B1 - Form sheet for transferring electronics, Tray including the same, and Method for producing the same - Google Patents

Abstract

The present invention relates to a foam interlayer for transferring electronic products, a tray for transferring electronic products, and a method for manufacturing the same. The present invention is foam; and a non-slip film having a self-adhesive function and a non-slip function on at least one surface of the foam.

Description

Form sheet for transferring electronic products, tray for transferring electronic products including the same, and manufacturing method thereof

The present invention relates to a foam interlayer for transferring electronic products, a tray for transferring electronic products, and a method for manufacturing the same.

When transporting secondary batteries, IT, cells such as electronic parts, and modules, internal/external materials and packaging materials such as trays and electronic products must be able to act as a buffer in case of impact.

In this regard, polystyrene-based (EPS), polyolefin-based (EPE, EPP) foamed interlining paper for transport packaging materials such as display parts, cells, and modules used in TVs, mobile phones and secondary batteries, IT, electronic parts, etc. I use it a lot. These transfer separators should not have cracks caused by vibration or friction when loading and transporting cells, modules, etc., and should be able to act as a buffer to prevent damage. In addition, it should be possible to minimize damage to static electricity that may be caused by external friction or vibration.

In the past, when transporting cells and modules such as secondary batteries, IT, and electronic components, trays for transport packaging materials are manufactured by extruding plastic (ABS, PET, PP, PS, etc.) to use, or to prepare an expanded polyethylene (EPE) foam inside the tray; The step of punching the foamed polyethylene (EPE) foam layer according to the model shape; it is attached to the inside of the tray and used as a transport and packaging tray when transporting cells such as secondary batteries, IT, electronic parts, and modules.

In addition, when there is a model change due to a change in the shape and size of various types of cells and modules such as secondary batteries, IT, and electronic parts, it is inconvenient to manufacture and use customized foamed polyethylene (EPE) foam slippers for each new model. In addition, it does not show a sufficient role to play a role of buffering and cracking due to vibration or friction during loading and transportation, and there is no countermeasure against static electricity that may be caused by external contact, friction or vibration, so defects caused by foreign matter This has an increasing disadvantage.

The present invention is to solve the above problems, and an object of the present invention is that there is no foreign matter generation due to vibration, friction, and static electricity prevention during transport of electronic products, and excellent stability and excellent In addition to having a buffering role, it is possible to transport and transport various models of cells and modules with one tray, so it is possible to save raw materials and have price competitiveness. will provide

In order to achieve the object of the present invention, foam; and a non-slip film having a self-adhesive function and a non-slip function on at least one surface of the foam.

According to one embodiment, the foam is preferably composed of polyolefin-based foam, PU foam, or EVA foam.

According to one embodiment, the polyolefin-based foam is preferably PE foam or PP foam.

According to an embodiment, the non-slip film itself is preferably a film having a non-slip function, a film including a coating layer including a non-slip material, or a non-slip film having an internal non-slip material.

According to one embodiment, the film having a non-slip function by itself is preferably a single film or a composite film selected from PE, PP, EVA, and TPU films.

According to one embodiment, the interfoam paper preferably includes an antistatic film containing an antistatic material or a coating layer containing an antistatic material on at least one surface.

According to an embodiment, the antistatic material is preferably at least one selected from the group consisting of a conductive polymer, graphene, and carbon nanotubes.

According to an embodiment, the antistatic film is preferably an EVA film, a PE film, a TPU film, a single film selected from the group consisting of, or a composite film of two or more multilayers.

In order to achieve another object of the present invention, as a tray for transporting electronic products, the tray includes a body portion having a groove for accommodating an electronic product, and a self-adhesive function and a non-slip function are provided in the groove. It provides a tray for transporting electronic products including a foam interlayer comprising a.

According to an embodiment of the present invention, there is provided a tray for transporting electronic products, wherein the tray includes a body portion having a groove for accommodating an electronic product, and the tray for transporting electronic products including a foam interlayer according to the present invention in the groove. provides

In order to achieve another object of the present invention, manufacturing a non-slip foam interlayer by attaching a non-slip film comprising a self-adhesive function and a non-slip function to at least one side of the foam; and attaching a film having an antistatic function to at least one side of the non-slip foam interlayer.

In order to achieve another object of the present invention, manufacturing a foam interlayer comprising a non-slip antistatic function including a self-adhesive layer; manufacturing a tray to include a body portion having a groove for accommodating an electronic product by vacuum forming a plastic sheet having an antistatic function; and fixing the self-adhesive layer of the foam interlayer to the bottom of the groove after cutting the foam interlayer to fit the size of the groove.

The foam interlayer for transferring electronic products according to the present invention includes a non-slip function and a self-adhesive function on one side, so that it is possible to prevent slipping of the electronic product during transport, so that it can be fixed to any type of tray for transporting the electronic product. Therefore, it is possible to facilitate the transport of electronic products. That is, it can be easily fixed to the tray by simply cutting the foam interlayer without the need to separately manufacture the form interlayer in different shapes and sizes depending on the shape and size of the tray. Therefore, it is possible to transport various electronic products without making a separate tray according to the model and size of the electronic product transferred to the tray.

In addition, the electronic product transport tray including the foam interlayer according to the present invention has a self-adhesive function and an anti-slip function when transporting electronic products such as secondary batteries, IT, cells such as electronic parts, and modules. , Since it is possible to transport without shaking regardless of the size of the electronic product transferred to the tray, there is no foreign matter generated by vibration, friction, and static electricity when transporting electronic products. In addition to being able to serve as an excellent cushioning agent for the can have

1 is a photograph showing a cross-section of a foam interlayer having a non-slip function and an antistatic function according to an embodiment of the present invention.
2 is a photograph showing a tray for transporting electronic products including a non-slip antistatic foam interlayer according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail, but this is only for description of the present invention and should not be construed as limiting the scope of the present invention.

According to the present invention, in order to achieve the object of the present invention, foam; and a non-slip film having a self-adhesive function and a non-slip function on at least one surface of the foam.

Referring to Figure 1 according to the present invention, Non-Slip antistatic foam interlayer 100 is foam 110; a non-slip film 120 having a self-adhesive function and a non-slip function on at least one surface of the foam 110; and a general base film 140 on the other side of the foam 110 .

The foam 110 is preferably made of polyolefin-based foam, PU foam, or EVA foam, and non-crosslinked, chemically crosslinked, and pressure crosslinked foam is used to relieve the impact when transporting electronic products. Preferably, it can be used as an intermediate layer as a foam 10 to 50 times expanded.

According to one embodiment, the foam is preferably PE foam or PP foam.

According to one embodiment, the foam 110 may be formed of a foam manufactured by low-foaming, high-foaming, non-crosslinking, and chemical crosslinking. More specifically, it may be formed of low-foaming, high-foaming, non-crosslinking, PE foam manufactured by chemical crosslinking, PP foam, PU foam, or EVA foam manufactured by pressure crosslinking, but is not limited thereto.

According to an embodiment, the non-slip film itself is preferably a film having a non-slip function, a film including a coating layer including a non-slip material, or a non-slip film having an internal non-slip material.

According to one embodiment, the film having a non-slip function by itself is preferably a single film or a composite film selected from EVA, self-adhesive PE or PP, and TPU film.

As the non-slip material, a rubber-based, urethane-based, or acrylic-based compound may be preferably used.

The foam interlayer 100 preferably further includes an antistatic film 130 including a coating layer including an antistatic material on at least one surface or an antistatic material to which an antistatic material is internally added.

The antistatic film 130 may be manufactured by laminating with the non-slip film 120, and in this case, it is hereinafter referred to as a non-slip antistatic film.

According to an embodiment of the present invention, the antistatic material is preferably at least one selected from the group consisting of a conductive polymer, graphene, and carbon nanotubes.

The antistatic layer may be an antistatic coating layer formed of a thermosetting antistatic composition including an antistatic agent, a thermosetting binder, an organic solvent, an additive, and water. The double conductive polymer may include a conductive polymer with easy electron transfer, such as polyaniline, polypyrrole, or PEDOT [Poly(3,4-ethylenedioxythiophene)].

The antistatic coating layer may contain 1 to 50% by weight of the antistatic composition with respect to the entire coating layer composition, and when it is included in less than 1% by weight, the antistatic effect may be insignificant, and when it exceeds 50% by weight, the physical properties of the polymer resin are affected can give

According to an embodiment of the present invention, the antistatic film is preferably a single film selected from the group consisting of an EVA film, a PE film, and a TPU film, or a composite film of two or more types of multilayers.

The foam interlayer according to the present invention can be easily cut according to the shape and size of the tray and fixed to the tray regardless of the model and/or size of the tray for transporting electronic products due to the self-adhesive function and the non-slip function, so the model change Accordingly, the manufacturing process is simple and easy, saving costs because it can be assembled according to the model shape without the inconvenience of having to rework accordingly.

In addition, the foam interlayer according to the present invention can be transferred without slipping due to a collision during transport by electronic products transferred to the tray due to the non-slip function, and also can be transferred without shaking even if it does not meet the tray specifications. Therefore, it is possible to transport various electronic products just by inserting and configuring the foam interlayer according to the present invention without the inconvenience and cost consumption of having to rewrite the tray every time according to the shape and size change according to the model of the electronic product to be transported. Therefore, the manufacturing process and unit cost can be greatly reduced, and the waste tray can be reduced because the tray that is thrown away can be reused according to the change of the model, which is eco-friendly.

According to one embodiment, the Non-Slip antistatic foam interlayer can be used to transport one or more selected from secondary batteries, IT, cells such as electronic components, modules, etc., parts and chips used for TVs, mobile phones and monitors, etc. , can be freely used according to the purpose.

Since the foam interlayer according to the present invention is composed of a foam interlayer including a film having a non-slip function and a self-adhesive function, it can be cut as needed and attached to at least one side of the upper plate and the lower plate of the tray for transporting electronic products.

According to one embodiment, the lower plate or the upper plate is formed of a non-slip antistatic film having at least one antistatic magnetic adhesion performance on at least one side, so that the desired side can be selected as needed. It is manufactured so that it is a side that contains and transports parts such as etc.

According to an embodiment of the present invention, the present invention comprises the steps of attaching a non-slip film 120 having a self-adhesive function and a non-slip function to at least one surface of the foam interlayer 110; and attaching the polymer film 140 to the other side of the foam interlayer 110 .

The foam interlayer manufacturing method further includes attaching the film 130 having an antistatic function to at least one surface of the non-slip film 120 and the polymer film 140 .

The polymer film 140 may be made of PE, PP, PET, EVA, nylon, or the like. The polymer film may be any one generally used in the art, and may be appropriately selected by a person skilled in the art in consideration of price, practicality, durability, and the like.

According to an embodiment of the present invention, the present invention provides a non-slip film 120 on at least one surface of the foam interlayer 110, the foam interlayer 110; and a polymer film 140 on the other side of the foam interlayer 110, and heat is applied to laminate the film interlayer.

In the foam interlayer manufacturing method, it is preferable to further position the film 130 having an antistatic function on at least one surface of the non-slip film 120 and the polymer film 140 and heat the paper.

In order to achieve another object of the present invention, the present invention provides a tray for transporting electronic products, wherein the tray includes a body portion having a groove for accommodating an electronic product, and a non-slip function is included in the groove It provides a tray for transporting electronic products including a foam interlayer.

Referring to the drawings, FIG. 2 is a photograph showing a tray including a non-slip antistatic foam interlayer according to the present invention.

Tray (200) including Non Slip antistatic foam interlayer in the present invention cuts Non Slip antistatic foam interlayer (220), and adhesive means, for example, adhesive and double-sided tape, on the inner surface of antistatic plastic tray (210) It is attached and fixed using

The non-slip film 120 may be manufactured using a film having a non-slip function as it is, applying a coating layer containing a non-slip material, or made of a resin containing a non-slip material.

The non-slip film 120 according to the present invention may be composed of a multi-layer film laminated with other resins or multi-layers or other films when a film having excellent non-slip functionality is used alone or when extruded, and the foam interlayer and laminating power are A good film is preferred.

According to an embodiment of the present invention, the film having excellent non-slip property includes an EVA film, a PE (MPE, LDPE, LLDPE, HDPE) film, and a polyolefin-based, TPU-based, polyester-based, polyimide-based, PP film; It may be a polystyrene series, and preferably an EVA film and a PE (MPE, LDPE, LLDPE, HDPE) film.

Non-slip characteristics are coefficient of friction (ASTM D1894, material to be rubbed: Glass, friction coefficient test speed 150mm/min, vertical load 1.96N, average section 20 ~ 100mm) Both static friction coefficient and dynamic friction coefficient are preferably 0.5 or more, 0.4 or less In this case, the friction coefficient is low and the non-slip property is low, so there is a disadvantage in that it cannot support the parts such as cells and modules of secondary batteries, IT, electronic parts, etc.

The base sheet of the antistatic plastic tray means a thermoplastic polymer synthetic resin, and specific examples include polyester (PET A, PET G, PET G-PET A-PET G), styrene-butadiene copolymer, acrylate-butadiene-styrene (ABS), polystyrene, polyimide, polyamide, polysulfonate, polycarbonate, polyacrylate, polyvinyl chloride, polyethylene, polypropylene, modified polyphenylene oxide [MPPO (Modified-Polyphenylene Oxide)], these blends or copolymers, phenolic resins, epoxy resins, urethane resins and ABS resins.

The tray containing the non-slip antistatic foam interposer of the present invention relates to the manufacture of the non-slip antistatic foam interlayer necessary for the transportation of cells, modules, etc. of secondary batteries, IT, electronic parts, etc., and the manufacture of trays using the same, self-adhesive performance One Non-Slip antistatic foam interlayer model by manufacturing a non-slip antistatic foam interlayer with It can be used irrespective of the model shape without the inconvenience of rework due to model change. It is expected that the occurrence of surface scratches can be minimized due to its excellent cushioning properties.

As described above, the present invention is not limited to the specific preferred embodiments described above, and anyone with ordinary skill in the art to which the invention pertains without departing from the gist of the invention as claimed in the claims Various modifications are possible, of course, and such modifications are within the scope of the claims.

Hereinafter, the present invention will be described in more detail through examples. This is only for the purpose of explanation of the present invention, thereby not limiting the scope of the present invention.

<Example 1> Preparation of Non Slip Film

Using a blow-type PE extruder, a self-adhesive EVA (VA is added)/LDPE/LDPE form at a temperature of 100 to 200° C. was simultaneously prepared as an EVA multilayer film (total thickness of 40 μm). Corona treatment was additionally treated on the EVA side.

<Example 2> Preparation of Non Slip Film

A self-adhesive MPE (prepared using a metallocene catalyst) / LDPE / LDPE form at 100 ~ 200 ℃ temperature using a blow-type PE extruder at the same time to prepare a MPE multi-layer film (total thickness 40um). Corona treatment was additionally treated on the self-adhesive MPE surface.

<Example 3> Preparation of antistatic composition

Conductive polymer (PEDOT) 15% by weight, acrylic-urethane copolymer binder (WF-4644) 5% by weight, water 29.5% by weight, isopropyl alcohol 50% by weight, wetting agent 0.5% by weight to prepare a thermosetting antistatic composition did

<Example 4> Preparation of Non Slip Antistatic Film

The anti-static coating solution prepared in Example 3 was thermally cured at 60 to 100° C. by a roll-to-roll method on the surface of the multi-layer non-slip EVA film prepared in Example 1 to prevent non-slip static electricity. A film was prepared.

<Example 5> Preparation of Non Slip Antistatic Film

The antistatic coating solution prepared in Example 3 was thermally cured at 60 to 100° C. by a roll-to-roll method on the multi-layered self-adhesive MPE surface prepared in Example 2 to prevent non-slip antistatic A film was prepared.

<Examples 6 and 7> Preparation of Non Slip antistatic foam interlayer

The antistatic EVA multilayer film, or the self-adhesive MPE multilayer film and the antistatic PE film (LDPE, HDPE) prepared in Examples 4 and 5, respectively, were prepared in an uncrosslinked form between 25 and 50 times 0.5 mm thick Non-slip antistatic foam interlayer was manufactured by laminating on both sides of the PE foam material through thermal lamination. The surface resistance showed 10E6 Ω/cm 2 in both cases by the method of ASTM D257.

<Example 8> Preparation of antistatic tray

The PET resin was passed through a gloss roll and a cooling roll through a T-die extrusion process (extruder temperature is 150 to 190° C.), and the antistatic coating solution of Example 3 was used on the PET sheet prepared by gravure coating method. After coating with a thickness of ㎛ (film after drying) and heat curing at 60-80℃ to coat the cross-section, continuously coat the opposite side to a thickness of 0.3㎛ (film after drying) by gravure coating method and heat at 60-80℃ By curing and coating, it was possible to prepare an antistatic sheet having an antistatic coating layer on both sides. The surface resistance showed 10E6Ω/cm2 in both cases by the method of ASTM D257. An antistatic tray was prepared by vacuum forming the prepared antistatic PET sheet at a temperature of 150 to 190°C. The surface resistance showed 10E6~9Ω/cm2 in both cases by the method of ASTM D257.

<Examples 9 and 10> Preparation of non-slip antistatic tray including non-slip antistatic foam interlayer

The non-slip antistatic foam interlayer prepared in Examples 6 and 7, respectively, was cut on the inner surface of the antistatic tray manufactured in Example 8, and was attached and fixed using double-sided tape. Non-slip antistatic tray containing non-slip antistatic foam interlayer were prepared respectively.

<Comparative Example 1> General PE film production

온도에서 일반 HDPE 형태로 필름(총 두께 40um)을 제조하였다. HDPE 단면에 코로나 처리를 추가적으로 처리하였다. 100 ~ 200 using blow type PE extruder

A film (total thickness of 40 μm) was prepared in the form of normal HDPE at the temperature. Corona treatment was additionally treated on the HDPE cross section.

Experimental Example: Measurement of Non-Slip Characteristics

Non-slip characteristics were determined by measuring the coefficient of friction (ASTM D1894, material to be rubbed: Glass, friction coefficient test speed 150mm/min, vertical load 1.96N, average section 20 ~ 100mm).

Comparative Example 1 exhibited a static friction coefficient of 0.4 or less and a dynamic friction coefficient of 0.3 or less. The surface resistance showed 10E12Ω/cm 2 or more by the method of ASTM D257.

The characteristics of the non-slip antistatic film of the film prepared in Example 1 showed a static friction coefficient of 1.5 or more and a dynamic friction coefficient of 1.4 or more. The surface resistance was 10E6 Ω/cm 2 according to ASTM D257.

The properties of the non-slip antistatic film prepared in Example 2 showed a static friction coefficient of 1.2 or more and a dynamic friction coefficient of 1.1 or more. The surface resistance was shown as 10E6 Ω/cm 2 according to ASTM D257.

The film according to Comparative Example 1 has a static friction coefficient of 0.4 or less and a dynamic friction coefficient of 0.3 or less, and thus the non-slip property is poor, so that it cannot support parts such as secondary batteries, IT, cells such as electronic parts, and modules.

However, the friction coefficient of the non-slip foam interlayer prepared according to Examples 1 and 2 of the present invention has a static friction coefficient of 1.2 or more and a dynamic friction coefficient of 1.2 or more, indicating that the non-slip property is excellent. Therefore, when an electronic product such as an electronic component is put in the non-slip antistatic tray of Examples 9 and 10 to which they are attached, there is an external shock, etc., so that it can be stably transported without shaking.

100: Non Slip antistatic foam interlayer
110: foam foam (EPE)
120: non-slip EVA film
130: antistatic coating layer
140: PE film
200: Anti-static plastic tray including non-slip anti-static foam interlayer
210: plastic antistatic tray
220: Non Slip antistatic foam interlayer

Claims (12)

Foam composed of polyolefin-based foam, PU foam, or EVA foam; and
At least one surface of the foam includes a multi-layered non-slip film having a self-adhesive function and a non-slip function,
The non-slip film is a composite film of two or more selected from an EVA film, a PE film, a PP film, a TPU film, a polyester film, a polyimide film, and a polystyrene film, and is composed of a multilayer, and the PE film is MPE, Characterized in that it is selected from LDPE, LLDPE and HDPE,
Electronic that has a static friction coefficient of 1.2 or more and a dynamic friction coefficient of 1.1 or more when measuring the friction coefficient between foam paper (ASTM D1894, glass to be rubbed, friction coefficient test speed 150mm/min, vertical load 1.96N, average section 20~100mm) Foam sheet for product transfer. delete According to claim 1,
The polyolefin-based foam is an electronic product transfer foam, characterized in that the PE foam or PP foam. delete delete According to claim 1,
The foam interlayer includes a coating layer containing an antistatic material on at least one surface or an antistatic film containing an antistatic material internally. 7. The method of claim 6,
The antistatic material is at least one selected from the group consisting of conductive polymers, graphene and carbon nanotubes. 7. The method of claim 6,
The antistatic film is a single film selected from the group consisting of EVA film, PE film, PP film, TPU film, Nylon film and PET film, or a composite film of two or more types of multi-layered foam for transporting electronic products tickle. delete A tray for transporting electronic products, comprising:
The tray includes a body portion having a groove for accommodating an electronic product,
A tray for transporting electronic products, characterized in that it comprises the foam interlayer according to any one of claims 1, 3, and 6 to 8 in the groove. Preparing a non-slip foam interlayer by attaching a multi-layered non-slip film including a self-adhesive function and a non-slip function to at least one side of the foam composed of polyolefin-based foam, PU foam, or EVA foam; and
Attaching a film having an antistatic function to at least one side of the non-slip foam interlayer,
The non-slip film is a composite film of two or more selected from an EVA film, a PE film, a PP film, a TPU film, a polyester film, a polyimide film, and a polystyrene film, and is composed of a multilayer, and the PE film is MPE, selected from LDPE, LLDPE and HDPE;
Electronic that has a static friction coefficient of 1.2 or more and a dynamic friction coefficient of 1.1 or more when measuring the friction coefficient between foam paper (ASTM D1894, glass to be rubbed, friction coefficient test speed 150mm/min, vertical load 1.96N, average section 20~100mm) Manufacturing method of foam interlayer for product transfer. manufacturing a non-slip antistatic function including a self-adhesive layer;
manufacturing a tray to include a body portion having a groove for accommodating an electronic product by vacuum forming a plastic sheet having an antistatic function; and
After cutting the foam interlayer to fit the size of the groove, fixing the self-adhesive layer of the foam interlayer to the bottom of the groove,
The step of preparing a non-slip interlayer by attaching a multi-layer non-slip film to at least one side of the foam composed of polyolefin-based foam, PU foam, or EVA foam; and attaching a film having an antistatic function to at least one side of the non-slip foam interlayer,
The non-slip film is a composite film of two or more selected from an EVA film, a PE film, a PP film, a TPU film, a polyester film, a polyimide film, and a polystyrene film, and is composed of a multilayer, and the PE film is MPE, selected from LDPE, LLDPE and HDPE;
When measuring the friction coefficient of the foam interlayer (ASTM D1894, glass to be rubbed, friction coefficient test speed 150mm/min, vertical load 1.96N, average section 20-100mm), the static friction coefficient is 1.2 or more and the dynamic friction coefficient is 1.1 or more A method for manufacturing a tray for transporting electronic products.

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