KR100969620B1 - Film for preventing damage, alerating desingn and blocking out noxious wave - Google Patents

Abstract

PURPOSE: A film for preventing breakage, changing design, and protecting harmful wave is provided. CONSTITUTION: A film which prevents breakage, changes design, and blocks harmful wave comprises: a main film(10); a main adhesive layer(20) formed at one side of the main film; a guide film(30) formed at the outside of the main adhesive layer; a sub-film which is removed after adhesion of the sub-film; and a sub-adhesive layer(40) formed between the main film and sub-film. The sub-adhesive layer comprises: a main ingredient selected from ethylene acetic acid vinyl copolymer(EVA), polyamide, polyester, polyurethane, and rubber; a resin selected from rosin, ester, terpene resin, and coumarin resin; a wax selected from paraffin and microcrystalline wax; a plasticizer selected from DBP, chloridation diphenyl, and chlorinated paraffin; and a filler selected from calcium carbonate, talc, and kaolin.

Description

Damage prevention, design change and harmful wave blocking film {FILM FOR PREVENTING DAMAGE, ALERATING DESINGN AND BLOCKING OUT NOXIOUS WAVE}

The present invention prevents damage that may occur on the surface of various types of adherends such as home appliances, automobiles, covers damages already occurring, changes the color and design of the adherends, and various harmful waves generated on the adherends. It relates to a damage prevention film to block.

In order to prevent damage during the manufacturing process and daily use of expensive mobile phones, laptops and automobiles, various kinds of damage preventing films are attached. The damage prevention film for surface protection according to the prior art is not only difficult to protect the surface due to the weak material, but also may occur when the pressure-sensitive adhesive is transferred to the pressure-sensitive adhesive component. In addition, due to the high adhesion that is unsuitable for electronic devices such as notebooks, mobile phones, damage to the coating or painting surface of the adherend.

If the main film attached to the surface is hard, it is not attached to the surface having a curved surface.If the sub film is soft, it is difficult to attach and smoothly adheres to the surface due to its soft nature. There is a problem that is very difficult, such as bending, wrinkles or bubbles.

In addition, the existing product simply has a damage prevention function, there is a disadvantage that the color and design of the surface to be adhered and if the surface is already damaged.

The use of simple water or simple soapy water as a medium for re-adhesion, and on the other hand, water (70 vol. A liquid auxiliary material formed by mixing with an additive (30% by volume) (surfactant, purified water, isopropyl alcohol, etc.) is not only troublesome to spray on the surface of the damage preventing film or the adherend, but also causes the failure of home appliances. there is a problem.

The problem to be solved of the present invention is to prevent damage to the surface of various kinds of adherends such as home appliances, automobiles, cover the damage of the adherend already occurred, change the color and design of the adherend surface, and Damage prevention and design changes to block various harmful waves, to provide a harmful wave blocking film.

Another problem of the present invention is to form a sub-film having physical properties that can complement the soft component that is the physical property of the soft main film to prevent the main film adhered to the adherend to easily adhere the main film It can prevent the difficulty of attaching work due to the softness of the main film without the surface adaptation resistance by the secondary film when attaching to the surface of the adherend. To provide a harmful wave blocking film.

Damage prevention and design change of the present invention, harmful wave blocking film, the main film 10, the main pressure-sensitive adhesive layer 20 formed on one side of the main film, the guard film 30 formed on the outer side of the main pressure-sensitive adhesive layer, the main film And a sub-adhesive layer 40 formed between the sub-film and the main film, which is formed on the other side, and the sub-film 10 is removed after the sub-film 10 adheres to the adherend surface. Layer 40 includes a main material selected from ethylene vinyl acetate copolymer (EVA), polyamide, polyester, polyurethane, and rubber; Resin selected from rosin, ester feeling, terpene resin, and coumarone resin; Waxes selected from paraffin and microcrystalline wax; A plasticizer selected from DBP, diphenyl chloride and paraffin chloride; A filler selected from calcium carbonate, varyrter, talc, kaolin; It is characterized in that it is a hot melt copolymer prepared by mixing and dissolving the antioxidants of paraalkyl phenols, stirring in a reactor having a temperature range of 15 to 105 ℃, and aged for 12 to 15 hours.

Preferably, the main film has a thickness of 10um ~ 3,000um, has a tensile strength (PSTC-31) of 50N / 2.5cm ~ 495N / 2.5cm or more, has an elongation of 1 ~ 6.5 times, polyurethane ( Poly-Urethane), polypropylene oxide, polyisocyanate, hydroxyethyl, polyvinyl chloride (PVC), thermoplastic polyurethane (also called TPU, polyurethane elastomer, transparent polyurethane,), polyethylene terephthalate ( PET), monoacrylate, polyacrylate, polymethylmethacrylate, polycarbonate, polyethylene, methacrylate, polypropylene, cellulose acetate butylate (CAB), ethylene vinyl acetate (EVA), polyvinyl alcohol (PVA) , Hydroxyethyl, propylene oxide or a copolymer thereof.

Preferably, the main pressure-sensitive adhesive layer has a thickness of 10um to 2,500um, the initial adhesive strength of 30 ~ 2,500gf / 25mm, the late adhesive strength after 48 hours of 25 ~ 3,400gf / 25mm, silicone resin, rubber resin, hot melt resin, It is one of olefin resin, It is characterized by the above-mentioned.

Preferably, the guard film is either PAPER TYPE coated with silicone on one side or FILM TYPE such as PP, PET, OPP, PVC, PE, or Kraft Paper coated with silicone on both sides. It is characterized by.

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Preferably, the secondary film has a thickness of 10 to 3,000 μM, and is polyurethane (poly-urethane), polypropylene oxide, polyisocyanate, hydroxyethyl, polyvinyl chloride (PVC), thermoplastic polyurethane (TPU, polyurethane elasto Mercury, also referred to as transparent polyurethane, polyethylene terephthalate (PET), monoacrylate, polyacrylate, polymethylmethacrylate, polycarbonate, polyethylene, methacrylate, polypropylene, cellulose acetate butylate (CAB), ethylene vinyl acetate (EVA), polyvinyl alcohol (PVA), hydroxyethyl, propylene oxide, or a copolymer thereof.

Preferably, the main pressure-sensitive adhesive layer is characterized in that the fine embossed layer is formed on the surface, the color layer is formed to change the color and design of the adhered surface on one side of the main film.

Preferably, the antistatic coating layer, the damage prevention coating layer, the anti-reflective coating layer, characterized in that it further comprises any one of the electromagnetic wave blocking coating layer and a mixture thereof.

Damage prevention and design change, harmful wave blocking film according to the present invention can protect the damage that may occur on the surface of various adherends such as home appliances, automobiles.

In addition, there is an advantage that can change the color and design of the deposition surface while covering the damage of the deposition surface.

And, due to the ductility of the main film can be easily applied to the beginner can also be applied to the difficulty of the main film, such as the increase of the main film during the attachment surface attachment work.

In addition, by adjusting the initial adhesive strength before and the adhesion after the attachment can be reattached repeatedly when attached, there is an advantage that can be easily removed without leaving a trace even when removed.

In addition, the pressure-sensitive adhesive layer can be maintained until adhered to the adherend, it is possible to simply adhere to the adherend without using water as in the prior art, of course, can also be attached using a liquid containing a surfactant as in the prior art.

In addition, even when a flexible polyurethane is used as the main film, the secondary film prevents the polyurethane from stretching when attached to the adhered surface, thereby easily attaching the damage preventing film to the correct position.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

Figure 2 is a schematic diagram of the damage prevention and design change, harmful wave blocking film according to the present invention, Figure 3 is a schematic diagram of the damage prevention and design change, harmful wave blocking film according to another embodiment according to the present invention.

As shown, the present invention is the main film 10, the main pressure-sensitive adhesive layer 20 applied to one side of the main film, the guard film 30 formed on the outer side of the main pressure-sensitive adhesive layer, the sub-film formed on the other side of the main film 50 and the secondary pressure-sensitive adhesive layer 40 formed on the main film occlusal surface of the secondary film.

The main film 10 is a polyurethane (poly-urethane), polypropylene oxide, polyisocyanate, hydroxyethyl, poly having an appropriate resistance value for the temperature, deformation, pressure, humidity, discoloration, etc. required for the production of damage prevention film Vinyl chloride (PVC), thermoplastic polyurethanes (also referred to as TPU, polyurethane elastomers, transparent polyurethanes), polyethylene terephthalate (PET), monoacrylates, polyacrylates, polymethylmethacrylates, Polycarbonate, polyethylene, methacrylate, polypropylene, cellulose acetate butyrate (CAB), ethylene vinyl acetate (EVA), polyvinyl alcohol (PVA), hydroxyethyl, propylene oxide, or a copolymer thereof. .

Preferably, the main film has a thickness of 10um ~ 3,000um, has a tensile strength (PSTC-31) of 50N / 2.5cm ~ 495N / 2.5cm or more, it is preferable to have an elongation of 1 ~ 6.5 times. These main films have high tensile strength and elongation, and thus have high protection against external impact and damage even after they are adhered to the adherend.

On the other hand, it is preferable that the color layer 60 is formed on one side of the main film so as to change the color and design of the adhered surface. The color layer 60 may be formed in various printing processes such as offset, gravure, screen, UV printing, rotary printing, or printing printing process on the main film 10 in a color desired by a user. Accordingly, even if there is damage such as scratches on the adhered surface can be covered with the color layer 60 of the main film.

The main pressure-sensitive adhesive layer 20 is formed between the main film 10 and the guard film 30, the thickness is 10um to 2,500um, the initial adhesive strength is 30 ~ 2500gf / 25mm, the late adhesive strength after 48 hours 25 ~ It is 3,400 gf / 25mm, and any one of silicone resin, rubber resin, hot melt resin, and olefin resin is used. If the late adhesive force of the main adhesive is 3,400 g.f / 25 mm or more, there is a problem that coating of the adherend and surface damage occurs during peeling from the adherend. In particular, the main pressure-sensitive adhesive layer has a thickness of 10um to 2,500m, if the late adhesive strength is 25 to 3,400g.f / 25mm, while maintaining sufficient adhesion with the adherend, there is no transition of the adhesive during the removal of the main film and can prevent damage to the adherend.

On the other hand, in the coating process for forming the pressure-sensitive adhesive layer, the adhesion or adhesive strength is adjusted to the screen liner, pressure-sensitive adhesive properties and solvent type and mixing ratio, and then spray coating for forming the adhesive material coating layer, rotary screen process, roll coating process, flat plate use The coating process is performed by selecting one of coating process, fine precision coating process, UV coating process, "one stop roll to roll" coating process, flat screen coating process, roll screen coating process, PCB screen coating process, gravure coating process In addition, the drying and curing treatment process after the pressure-sensitive adhesive coating is a dry curing machine of Digital-PID-Auto Tuning temperature control method that ensures precise temperature distribution to prevent deformation or damage of the damage prevention film and the like and maintain high quality. Performing the drying and curing process, and the materials and components of each film and pressure-sensitive adhesive in the dry curing process In order to prevent the flow, spreading and blowing of the coated material by applying the appropriate temperature and time, irradiate various curing materials such as UV with a quick-drying and quick-drying function, and duct cone bare drying method, Hardening or drying process by hot air and hot wire drying method, heat drying method, and the like to evaporate and dry the solvent component of the pressure-sensitive adhesive coated on the plate surface so that each of the raw material components on the plate surface and the like.

On the other hand, it is preferable that the surface of the main pressure-sensitive adhesive layer 20 to form an embossed layer 65 so that anyone can easily detach and attach without bubbles or wrinkles generated when the main film is attached to the adhered surface. The embossing layer 65 may be formed by coating a pressure sensitive adhesive and then attaching a guard film with fine embossing to the surface to mature the main pressure sensitive adhesive layer or to apply a fine embossed pattern forming adhesive coating using a roll, a flat die or a sus mask. . The fine embossing pattern prevents bubbles and wrinkles generated when the damage preventing film of the present invention is attached.

In addition, a UV curing agent or the like can be added to the main gradual component to improve the properties of the pressure-sensitive adhesive.

Since the main pressure-sensitive adhesive layer 20 is protected by the guard film 30, it can be attached without using a liquid containing a surfactant as in the prior art, and on the other hand, including water, soapy water or a surfactant The liquid component can also be used to attach and activate the pressure-sensitive adhesive.

The liquid type use effect is to spray the physical property of the liquid component on the adhered surface or the main film adhesive surface to temporarily relieve the strong adhesive force to prevent the deformation of the film to prevent damage during positioning and reattachment, thereby facilitating the attachment. The liquid auxiliary component is a ratio of soapy water or water (70% by volume) + additive (30% by volume) (surfactant, purified water, isopropyl alcohol, etc.).

The guard film 30 is positioned on the outer surface of the main pressure-sensitive adhesive layer 20 and is formed to be laminated and used for surface protection for protecting the pressure-sensitive adhesive surface of the main pressure-sensitive adhesive layer 20. The guard film 30 uses a PAPER TYPE coated with silicon on one side or a FILM TYPE such as PP, PET, OPP, PVC, or Kraft Paper coated with silicon on both sides, and has a thickness. It is preferable that it is 20-3,000um.

The secondary pressure-sensitive adhesive layer 40 is formed between the main film 10 and the secondary film 50 and contains a silicone resin, an olefin resin, or a hot melt copolymer, but has a thickness of 10 to 2,500 um and 30 to 2,200 gf / 25mm. It is desirable to have an adhesive strength of. If the adhesive strength of the secondary pressure sensitive adhesive layer is 30 to 2,200 gf / 25 mm, the secondary film can be most easily removed after being attached to the surface of the adherend while maintaining sufficient adhesion with the main film before use. It is possible to prevent the transfer of the adhesive even if it is unknown on the main film at the time of peeling off the secondary film after completion of the film application.

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In this case, the hot melt copolymer, main raw material selected from ethylene vinyl acetate copolymer (EVA), polyamide, polyester, polyurethane, Rubber; Resin selected from rosin, ester feeling, terpene resin, and coumarone resin; Waxes selected from paraffin and microcrystalline wax; A plasticizer selected from DBP, diphenyl chloride and paraffin chloride; A filler selected from calcium carbonate, varyrter, talc, kaolin; The antioxidants of paraalkyl phenols; can be mixed and dissolved, and stirred in a reactor having a temperature range of 15 to 105 ° C., followed by aging for 12 to 15 hours.

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The sub-film 50 overlaps the outer surface of the main film 10 in a layered manner to hold the stretching of the main film when attaching the main film to the adherent, thereby facilitating the attaching operation, and to prevent the occurrence of bubbles in the attached main film. It is formed to prevent wrinkles. The secondary film 50 is selected from one of PET, PC, PE, PP, and PVC, and is non-bonded to one side of the main film by a laminating method in addition to thermal lamination, a roll compression treatment method, and a thickness of 10 to 3,000 uM. The secondary film not only prevents deformation of the main film during or during reattachment in the case of the main film having a soft property such as polyurethane (Poly-Urethane) when the main film is applied to the adherend. It can be done easily. In addition, the sub film 50 is easily removed from the main film after attaching to the adherend surface.

On the other hand, the present invention may further form an antistatic coating layer 70, the anti-corrosion coating layer 75, the anti-reflective coating layer 80, the electromagnetic wave blocking coating layer 85 to improve the added value in the damage prevention film. Pigments and pastes for such value-added functions, suspensions, sol leaves, etc. may be mixed and coated with the pressure-sensitive adhesive layer forming coating, or may be prepared by synthesizing the pigments and pastes for the value-added function in the production of the main film, or It may be formed by performing a coating coating process by superimposing a pigment and paste for a value-added function on one side of the layer of the film.

The antistatic coating layer 70 may coat a synthetic resin containing a conductive polymer and a metal component on one surface of the main film, or by depositing an antistatic thin film, to prevent static electricity and prevent dust collection from sticking to dust. . The anti-damage coating layer 75 prevents scratches and damages to the surface of the coating by a damage prevention reinforcement coating on either the innermost or outermost side of the main film, and can be cleaned without scratching with a mop, etc. The damage to the adherend surface can be prevented from this.

In addition, the anti-reflective coating layer 80 may form a low-gloss coating layer on the main film to form a protective film to prevent diffuse reflection generated by external light.

In addition, the electromagnetic shielding coating layer 85 is used to block the electromagnetic waves harmful to the human body with the electromagnetic shielding coating, the use of ultrafine particles of metal particles and fine carbon paste in a range that does not impair the optical properties of the damage prevention film. By mixing with a solvent in a ratio suited to conditions, ultra-thin uniform coating and deposition on any one surface of the main film, it is possible to form an electromagnetic wave shielding layer to block harmful electromagnetic waves.

In the damage preventing film of the present invention, in laminating the main film, the guard film, and the sub film, the guard film is interlocked on the main adhesive layer on one side of the main film, and after the main film is interlocked on the adhesive film on one side of the sub film, The presser can be used for flat lamination, roller lamination and press production for small quantities. In addition, bubbles can be prevented by performing a vacuum process in parallel for 1 second to 3 minutes at a temperature of 20 to 300 ° C. and a pressure of 5 to 110 MPa in a heating and compression lamination process as necessary.

1 is a perspective view of the damage prevention, design change and use of the harmful wave blocking film according to the present invention.

Figure 2 is a schematic diagram of the damage prevention, design change and harmful wave blocking film according to the present invention.

Figure 3 is a schematic diagram of the damage prevention, design change and harmful wave blocking film according to another embodiment according to the present invention.

Description of the Related Art

10: main film 20: main pressure-sensitive adhesive layer,

30: guard film, 40: secondary adhesive layer,

50: negative film, 60: color layer

65: embossed layer 70: antistatic coating layer

75: damage prevention coating layer 80: diffuse reflection coating layer

85: electromagnetic shielding coating layer

Claims (28)

A main film 10; A main adhesive layer 20 formed on one side of the main film; A guard film 30 formed on the outer surface of the main adhesive layer; A sub film 50 formed on the other side of the main film and removed after the sub film 10 adheres to the adherend surface; And a sub-adhesive layer 40 formed between the sub-film and the main film, The secondary pressure-sensitive adhesive layer 40 is a main raw material selected from ethylene vinyl acetate copolymer (EVA), polyamide, polyester, polyurethane, Rubber; Resin selected from rosin, ester feeling, terpene resin, and coumarone resin; Waxes selected from paraffin and microcrystalline wax; A plasticizer selected from DBP, diphenyl chloride and paraffin chloride; A filler selected from calcium carbonate, varyrter, talc, kaolin; Anti-oxidation of paraalkyl phenols; mixed, dissolved, stirred in a reactor having a temperature range of 15 ~ 105 ℃, then aged for 15 to 15 hours to prevent damage, design characterized in that the hot melt copolymer Changeable and harmful wave blocking film. The method of claim 1, wherein the main film has a thickness of 10um ~ 3,000um, has a tensile strength (PSTC-31) of 50N / 2.5cm ~ 495N / 2.5cm or more, and is a film having an elongation of 1 ~ 6.5 times Damage prevention, design change and harmful wave blocking film, characterized in that. The method of claim 2, wherein the main film is polyurethane (Poly-Urethane), polypropylene oxide, polyisocyanate, hydroxyethyl, polyvinyl chloride (PVC), thermoplastic polyurethane (TPU, polyurethane elastomer, transparent poly Urethane, also called), polyethylene terephthalate (PET), monoacrylate, polyacrylate, polymethylmethacrylate, polycarbonate, polyethylene, methacrylate, polypropylene, cellulose acetate butyrate (CAB), ethylene The vinyl acetate (EVA), polyvinyl alcohol (PVA), hydroxyethyl, propylene oxide or a copolymer selected from any one of the damage prevention, design change and harmful wave blocking film. The method of claim 1, wherein the main pressure-sensitive adhesive layer has a thickness of 10um to 2,500um, the initial adhesive force is 30 ~ 2,500gf / 25mm, the late adhesive force after 48 hours is 25 ~ 3,400gf / 25mm damage prevention, design change And harmful wave blocking film. The damage prevention, design change and harmful wave blocking film according to claim 4, wherein the main pressure-sensitive adhesive layer is any one of a silicone resin, a rubber resin, an olefin resin, and a hot melt copolymer. The method according to claim 1, the guard film 30 is made of PAPER TYPE coated with silicon on one side or FILM TYPE selected from PP, PET, OPP, PVC, or in kraft paper coated with silicon on both sides. Damage prevention, design change and harmful wave blocking film, characterized in that any one, the thickness is 20 ~ 3,000um. The damage prevention, design change and harmful wave blocking film according to claim 1, wherein the secondary pressure sensitive adhesive layer has a thickness of 10 to 2,500 um and an adhesive strength of 30 to 2,200 g.f / 25mm. delete delete delete The method of claim 1, the secondary film is a polyurethane (poly-urethane), polypropylene oxide, polyisocyanate, hydroxyethyl, polyvinyl chloride (PVC), thermoplastic polyurethane (TPU, polyurethane elastomer, transparent polyurethane , Polyethylene terephthalate (PET), monoacrylate, polyacrylate, polymethylmethacrylate, polycarbonate, polyethylene, methacrylate, polypropylene, cellulose acetate butylate (CAB), ethylene vinyl Damage prevention, design change and harmful wave blocking film, characterized in that any one selected from acetate (EVA), polyvinyl alcohol (PVA), hydroxyethyl, propylene oxide, OPP, plain paper, processed paper. The method according to claim 11, wherein the secondary film has a thickness of 10um ~ 3,000um, has a tensile strength (PSTC-31) in the range of 20N / 2.5cm ~ 3,000N / 2.5cm, and has an elongation of 1 to 6 times Feature damage prevention, design change and harmful wave blocking film. The damage prevention, design change and harmful wave blocking film according to claim 1, further comprising any one selected from an antistatic coating layer, a damage preventing coating layer, an antireflection coating layer, and an electromagnetic wave blocking coating layer. The damage prevention, design change and harmful wave blocking film according to claim 13, wherein the antistatic coating layer is formed by coating a synthetic resin including a conductive polymer and a metal component on one surface of the main film, or by depositing an antistatic thin film. The method of claim 1, wherein the main pressure-sensitive adhesive layer 20 is characterized in that the embossed layer is formed on the surface of the damage prevention, design change and harmful wave blocking film. The damage prevention, design change and harmful wave blocking film, characterized in that the color layer is formed on one side of the main film to change the color and design of the adhered surface. delete delete delete delete The method according to claim 15, wherein the embossing layer 65 is formed by attaching a guard film with a fine embossing formed on the surface after coating the main pressure-sensitive adhesive and aged the main pressure-sensitive adhesive layer or a fine embossed pattern using a roll, flat metal mold or sus mask Damage prevention, design change and harmful wave blocking film, characterized in that formed by adhesive coating formed. The damage prevention, design change and harmful wave blocking film according to claim 1, wherein the main pressure-sensitive adhesive layer (20) is activated by a liquid component selected from water, soapy water, or a liquid auxiliary material. delete The damage preventing, design change and harmful wave blocking film according to claim 13, wherein the electromagnetic wave blocking coating layer is formed by mixing ultrafine metal particles and fine carbon paste with a solvent to uniformly coat and deposit an ultrathin film on one surface of the main film layer. . delete delete delete delete

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