KR100985148B1 - Surface protective sheet and manufacturing method of the same - Google Patents

Abstract

PURPOSE: A surface-protecting paper including a protective layer, and a manufacturing method thereof are provided to secure the strong adhesive force at a curved surface, and to prevent the sticking inferiority phenomenon. CONSTITUTION: A surface-protecting paper(100) protecting the surface of an attached product comprises the following: a protective layer(110) formed with a soft pattern(117) on one side; a substrate film(130) formed on the protective layer; an adhesive layer(140) formed on the substrate film; and a release film(150) formed on the adhesive layer. The soft pattern is formed in plural on the surface corresponding to a curved surface of an attached product.

Description

Surface protective sheet and manufacturing method of the same

The present invention relates to a surface protective paper and a method for manufacturing the same, and more particularly, to a surface protective paper having a durable protective layer that can be conveniently used and a manufacturing method thereof.

Conventionally, various methods have been proposed to prevent surface damage of products having surfaces such as glass, ceramics, plastics, and metals, in particular, home appliances and portable electronic products (such as mobile phones, MP3 players, and personal portable video devices). One of them is to attach surface protection paper.

Conventional surface protective paper has a problem that it is difficult to properly perform the function of protecting the adherend surface originally intended because the protective layer material is weak. In addition, when the surface protective paper is attached to the adherend after removal, if necessary, the adhesive or adhesive is transferred to the adhered surface due to the properties of the adhesive and the adhesive to contaminate the adhered surface or to the adhered surface by excessive adhesion and adhesive force. It causes damage. In particular, the high adhesive force, which is unsuitable for expensive portable electronic devices, damages the coating surface or the painting surface of the adherend surface, thereby increasing user dissatisfaction.

In addition, there is a problem in that the surface protection paper has a restoring force that exceeds the adhesive force of the adhesive or adhesive in the curved area as a step, bend, curved surface, and corner area (hereinafter, referred to as a bent area) on the surface of the adherend. .

The present invention is derived to solve the above-described problems, one side of the present invention is strong durability of the protective layer material, when removing the surface protection paper from the adherend does not remain or damage to the surface of the adherend, even in the bent region An object of the present invention is to provide a surface protective paper which exhibits strong adhesion and has a beautiful pattern.

Another object of the present invention is to provide a method for producing the surface protection paper described above.

Surface protective paper according to one aspect of the present invention,

A protective layer having a soft pattern formed thereon, the pattern being foldable on at least one surface;

A base film provided on the protective layer;

An adhesive layer provided on the base film; And

It characterized in that it comprises a release film provided on the pressure-sensitive adhesive layer.

At this time, the soft pattern is formed at least one line in a portion corresponding to the bending area of the adherend to which the surface protection paper is attached.

In addition, the soft pattern may be a half cut line cut to one surface of the protective layer to a depth of 1/10 to 9/10 of the thickness of the protective layer.

In addition, the soft pattern may be formed by attaching a pattern layer having the soft pattern formed on one surface of the protective layer.

In addition, the soft pattern may be a line of sight having a mark that can be folded on at least one surface of the protective layer without being cut or cracked on the surface.

In addition, the protective layer is preferably the secondary fabric is laminated on the main fabric and the surface facing the main fabric to the base film.

In addition, it is preferable that an adhesive layer is included between the main fabric and the auxiliary fabric.

In addition, the main fabric is preferably made of wood or leather.

In addition, the thickness of the main fabric is preferably 0.02mm to 5mm.

In addition, the main fabric is made of wood, the soft pattern is preferably formed on the surface that is exposed to the main fabric.

In addition, the main fabric is made of leather, the soft pattern is the protective layer may be formed on any one surface of the main fabric.

In addition, the main fabric is made of wood, the auxiliary fabric may be one selected from the group consisting of paper, nonwoven fabric, OPP, PP, and PE.

In addition, the main fabric is made of leather, the auxiliary fabric is preferably one selected from the group consisting of PU, PVC, PET, PP, PE, non-woven fabric, paper, fiber and OPP.

In addition, the leather is artificial leather, the artificial leather is selected from the group consisting of release coated R / P (Release Paper), paper, fiber, PU, PET, PP, OPP, and non-woven fabric with the desired pattern is formed. The surface of the material may be artificial leather having a skin layer having a thickness of 5 μm to 300 μm formed by separating or removing the surface of the selected material from the surface of the selected material through coating or spray coating of polyurethane or polyvinyl chloride.

In addition, the auxiliary fabric is preferably formed with a thickness of 10 ㎛ ~ 300 ㎛.

In addition, it is preferable that at least one surface of the protective layer further includes at least one layer selected from the group consisting of an antistatic layer, a scratch prevention coating layer, and an electromagnetic wave shielding layer.

In addition, the surface where the protective layer is exposed to the outside is preferably a UV coating layer or varnish layer is further formed.

In addition, the material of the base film is polyurethane (polyurethane), polypropylene oxide (polypropylene oxide), polyisocyanate (polyisocyanate), hydroxyethyl (hydroxy ethyl), polyvinyl chloride (polyvinylchloride), polyethylene terephthalate (PET), Monoacrylate, polyacrylate, polymethylmethacrylate, polycarbonate, polyethylene, methacrylate, polypropylene , Cellulose acetate butyrate (CAB), ethylene vinyl acetate (EVA), polyvinyl alcohol (PVA), acrylate (arcylate), propylene oxide, propylene oxide, poly propylene, polyethylene, OPP ( Oriented poly propylene), PVC and copolymers thereof are preferably one selected from the group consisting of.

In addition, the release film is preferably coated on one side of the release paper selected from the group consisting of paper, poly propylene (Poly propylene), polyethylene terephthalate (OP) (Oriented poly propylene), and PVC.

In addition, the release film is preferably coated with PE or silicon (silicone) of the thickness range from 2 to 150 ㎛ on the surface.

In addition, the adhesive and the adhesive used in the adhesive layer and the pressure-sensitive adhesive layer, it is preferable that an emulsion type (Emulsion Type) is used as the silicone-based, acrylic, or hot melt adhesive and adhesive.

In addition, the pressure-sensitive adhesive layer is preferably formed in an embossed shape.

Method for producing a surface protective paper according to another aspect of the present invention,

A protective layer forming step of forming a soft pattern which is a pattern collapsible on at least one surface of the provided protective layer;

An adhesive layer forming step of applying and drying an adhesive on the protective layer;

A base film forming step of forming a base film on the adhesive layer;

An adhesive layer forming step of forming an adhesive layer on the base film; And

And a release film forming step of forming a release film on the adhesive layer.

At this time, the protective layer forming step further includes the step of laminating the auxiliary fabric on the surface facing the main fabric of the protective layer to the adhesive layer.

In addition, in the lamination, the temperature is in the range of 20 to 300 ° C., and the pressure is preferably 5 to 110 MPa.

In addition, after the release film forming step, it is preferable to further include a pressing paper forming step to pass the surface protective paper between the roller and the roller to a desired thickness.

In addition, the formation of the adhesive and pressure-sensitive adhesive is spray coating, rotary screen process, roll coating process, flat coating process, fine precision coating process, UV coating process, one stop roll to roll coating process, flat screen screen coating process, roll screen coating It is preferable to use one method selected from the group consisting of a process, a PCB screen coating process, and a gravure coating process.

Method of using a surface protective paper according to another aspect of the present invention,

The release film of the surface protection paper described above is removed and attached to the adherend.

In addition, before attaching the surface protective paper from which the release film is removed to the adherend, the liquid substance is applied to the adherend or the base film adhesive surface and then attached to the adherend.

Surface protective paper according to an aspect of the present invention has the advantage of first, by using a durable material such as veneer or artificial leather suitable for protecting the surface as a main fabric layer, while maximizing the surface protection effect and beautiful appearance. Second, the surface protection paper according to the present invention exhibits a strong adhesion even in the bending area to prevent adhesion failure. Third, the protective layer of the surface protection paper according to the present invention has a strong adhesive force with the adhesive has the effect of damaging the surface or the substrate film is not left on the surface when removing the surface protection paper from the adherend.

1 is an explanatory view of a surface protective paper according to a first embodiment of the present invention.
Figure 2 is an explanatory view of the line of sight or semi-cut line formed on the surface protection paper according to the first embodiment of the present invention.
3 is an explanatory view of a surface protective paper according to a second embodiment of the present invention.
Figure 4 is a flow chart illustrating a method of manufacturing a surface protective paper according to the present invention.

As used herein, the term "comprises" is intended to indicate that there is a feature or step described in the specification, or a combination thereof, in advance the possibility of the presence or addition of one or more other features or steps or a combination thereof. It should be understood that it does not exclude. Also, the term “formed on” is used to mean a positional relationship formed adjacent to each other, and may be formed on a lower or upper side when the position is changed. Does not exclude the presence of other components. Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art.

The surface protection paper 100 according to the first embodiment of the present invention includes a protective layer 110, an adhesive layer 120, a base film 130, an adhesive layer 140, and a release film 150. It is configured by. 1 is a view for explaining a first embodiment according to the present invention. In the following description of the embodiments, the upper and lower surfaces mean the upper and lower surfaces as shown in the drawings for convenience of description.

In the present embodiment, the protective layer 110 is configured to include a main fabric 111, which is a wooden material (peel) having a necessary pattern, and an auxiliary fabric 115 to protect it. At this time, the thickness of the protective layer 110 is different depending on the purpose and use of the surface protection paper 100, but is usually preferably in the range of 0.02mm to 5mm. The main fabric 111 of the wood material is excellent in surface protection and provides a natural pattern, artificial wood or natural wood can be used.

In this embodiment, the protective layer 110 is selectively laminated to the secondary fabric 115 in order to strengthen the surface protection function on the lower surface of the main fabric 111 of the wood material, and to prevent the wood grain. At this time, the material of the auxiliary fabric 115 may be used as paper, nonwoven fabric, OPP, PP, PE. As a result, the main fabric 111 is prevented from cracking and breaking, and the shape of the main fabric 111 is further strengthened. The second adhesive layer 113 is formed between the main fabric 111 and the auxiliary fabric 115.

A soft pattern is provided in one region of the protective layer 110. The soft pattern refers to a pattern such as a groove or a line that can be folded according to the pattern on the protective layer 110. For example, the soft pattern has a sheath that can be folded without being cut or cracked on the surface. It includes attaching a separate pattern layer having a line of sight, a half cut line cut into a depth of 1/10 to 9/10 of the surface thickness, or a soft pattern.

The area where the soft pattern is formed is because the adhesive force is weakened when there is no soft pattern in the curved area on the surface of the adherend so that the surface protective paper 100 easily falls off the surface of the adherend. The soft pattern 117 is formed on either or both of the top and bottom surfaces of the protective layer 110. When the protective layer 110 of wood material is used as in this embodiment, the soft pattern 117 is more flexible. Can be exercised.

Fig. 2 shows a state in which the surface protective paper of this embodiment is attached to a portion where a step of the adherend is formed. According to this, the soft pattern 117 may be formed in the direction parallel to the stepped lane direction in the stepped area between the liquid crystal window and the main body of the mobile phone, thereby enhancing the adhesive force in the area.

That is, the soft pattern 117 allows the surface protection paper 100 to be bent along the curved surface of the adherend, and at least one or more lines are formed according to the properties of the bent region, and may be varied in one direction or cross direction as necessary. It is formed into a pattern.

Meanwhile, various functional layers may be added to the upper or lower surface of the protective layer 110 by coating pigments and pastes. That is, it is possible to coat a synthetic resin containing a conductive polymer and a metal component as an antistatic layer, or to deposit an antistatic thin film to prevent static electricity and prevent dust collection.

In addition, the anti-scratch coating layer may be formed to prevent scratches and damages of the protective layer 110 and may be cleaned without scratching with a rag or the like during washing, and may prevent damage of the protective layer 110 from external chemical damage. In particular, the upper surface of the protective layer 110 may form a UV coating layer or a varnish layer as a surface forming a surface when attached to the actual adherend. When forming the UV coating layer or varnish layer, it is preferable to proceed after the sanding treatment.

In this case, the scratch prevention coating layer may include a low gloss coating layer to prevent diffuse reflection caused by external light.

In addition, the electromagnetic wave blocking layer may be formed to block electromagnetic waves generated in the adherend or the external environment. The electromagnetic wave shielding layer may be prepared by mixing metallic fine particles of a fine particle and a fine carbon paste.

The base film 130 serves to balance the protective layer 110, improve rigidity, and adhere to the adherend, and is formed on the upper surface of the protective layer 110. At this time, the material of the base film 130 is polyurethane (polyurethane), polypropylene oxide (polypropylene oxide), polyisocyanate (polyisocyanate), hydroxyethyl (hydroxy ethyl), polyvinyl chloride, polyethylene terephthalate ( PET), mono acrylate, poly acrylate, poly methyl methacrylate, polycarbonate, polyethylene, methacrylate, polypropylene (polypropylene), cellulose acetate butyrate (CAB), ethylene vinyl acetate (EVA), polyvinyl alcohol (PVA), acrylate (arcylate), propylene oxide, polypropylene (polypropylene), polyethylene (Polyethylene) It is preferably composed of OPP (Oriented poly propylene), PVC or copolymers thereof.

Release film 150 is a film for protecting the pressure-sensitive adhesive layer 140 and the above-described protective layer 110 formed between the release film 150 and the base film 130 is provided by a release coating treatment on a release paper. Release paper can be paper, polypropylene (pp), polyethylene terephthalate (Opp), oriented poly propylene (OPP), or PVC.The surface of the release paper can be coated with a PE or silicone coating with a thickness ranging from 2 to 150 μm. To produce a release film.

In this embodiment, the first adhesive layer 120 is positioned between the protective layer 110 and the base film, and the pressure-sensitive adhesive layer 140 is positioned between the base film 130 and the release film 150.

The adhesives and adhesives used for the first adhesive layer 120, the second adhesive layer 113, and the adhesive layer 140 may be silicone-based, acrylic-based, or hot-melt having a condition that satisfies the adherence and bending prevention conditions for the surface of the adherend. It is preferable to adopt an emulsion type as a hot melt adhesive and an adhesive.

Acrylic adhesives and adhesives include ethylhexyl acrylate monomers, butylacylate monomers, ethyl acrylate monomers, ethyl acetate (ethylacetate, methyl metacylate), and acrylic acid (acrylic acid). ) Use adhesives and pressure-sensitive adhesives prepared by interlocking and mixing solvents in a weight range of 10 to 90%, respectively, depending on the pressure and adhesive strength required when using the product and the viscosity conditions required in manufacturing.

As the hot melt adhesive and adhesive, the main material of the hot melt copolymer is ethylene vinyl acetate copolymer (EVA), polyamide, polyester, polyurethane, and rubber. Depending on the conditions, adhesives and pressure-sensitive adhesives prepared by interlocking and mixing resins, waxes, and solvents in the range of 5 to 95% by weight, respectively, are used.

At this time, rosin, ester, terpene resin and coumarone resin can be used as resin, and paraffin and microcrystalline wax can be used as wax.

Alternatively, dibutylphthalate, diphenyl chloride, and paraffin may be optionally used as a plasticizer, calcium carbonate, varyrter, talc, and kaolin may be used as fillers, and paraalkylphenols may be further added as antioxidants. .

Meanwhile, a UV curing agent may be used to form an adhesive or a pressure-sensitive adhesive film, and to improve adhesion and adhesion, and the amount of the UV curing agent is dried and cured in the range of 1 to 8% of the adhesive or adhesive material.

The surface protection paper 100 according to the first embodiment overcomes the occurrence of cracking and twisting of the veneer when the conventional veneer is used as the protective layer 110, and significantly reduces the adhesion in the bending area, While keeping the pattern as it is, there is no torsional cracking, and it has an excellent effect on adhesion to curved surfaces. In addition, the surface protection paper 100 using the veneer protective layer 110 from the conventional is provided in the form of semi-finished product, there is an effect that can be provided to the general user in the form of a finished product.

The surface protective paper 200 according to the second embodiment of the present invention includes a protective layer 210, an adhesive layer 220, a base film 230, an adhesive layer 240, and a release film 250. It is configured by. 3 is a view for explaining a second embodiment according to the present invention.

In this embodiment, the protective layer 210 is composed of the main fabric of the leather having the necessary pattern, the leather material may be used both artificial or natural leather, polyurethane (Poly-Urethane) is preferably used as artificial leather Can be.

Artificial leather is dried by forming a skin layer with a thickness of 5 ㎛ ~ 300 ㎛ by coating or spray coating a material such as polyurethane or polyvinyl chloride on the release coated R / P (Release Paper) surface having a desired pattern. After the process is separated from the surface of the release paper to complete the artificial leather protective layer, or by depositing the solution by adding paper, fiber, PU, PET, PP, OPP, non-woven fabric, such as polyurethane or polyvinyl chloride material tank When the solution is semi-cured, the pattern is formed into a flat plate and a roll type mold, thereby completing the patterned artificial leather.

The upper surface of the protective layer 210 of artificial leather material is PU, PVC, PET, PP, PE, nonwoven fabric, paper, fiber and OPP with a thickness of 10 μm to 300 μm in order to enhance surface protection and prevent the artificial leather from stretching. Optionally further comprises an auxiliary fabric 215, one of which is used. In essence, polyurethane (Poly-Urethane) artificial leather is excellent in tensile strength, elongation, flexibility, and touch, but it is difficult to process the adhesive itself on the inner surface of polyurethane artificial leather, thereby removing the elongation and flexibility of polyurethane artificial leather. This is to facilitate the.

Meanwhile, a hot melt type second adhesive 213 layer may be preferably formed between the auxiliary fabric 215 and the main fabric 211.

A soft pattern is provided in one region of the protective layer 210. The soft pattern refers to a pattern such as a groove or a line that can be folded without being cut or cracked on the protective layer 210. For example, the soft pattern has a sheath that can be folded without being cut or cracked on the surface. It includes attaching a separate coating layer in which a stapling line, a half cut line etc. cut out to a depth of 1/10 to 9/10 of the surface thickness, or the soft pattern is formed.

The area where the soft pattern is formed is because the adhesive force is weakened when there is no soft pattern in the curved area on the surface of the adherend so that the surface protective paper 200 easily falls off the surface of the adherend. The soft pattern 217 is formed on either side of the top or bottom surface of the protective layer 210. In this embodiment, when the protective layer 210 is made of artificial leather, the soft pattern 217 faces the base film when it is attached to the adherend. Forming on the lower surface can exhibit flexibility without tearing the artificial leather.

Hereinafter, since the configuration of the base film 230, the release film 250, the first adhesive layer 220 and the pressure-sensitive adhesive layer 240 is the same as the first embodiment described above, a detailed description thereof will be omitted.

Another aspect of the present invention provides a method for producing a surface protective paper. 4 is a flowchart illustrating a method of manufacturing a surface protective paper according to the present invention.

According to this, the manufacturing method of the surface protective paper includes a protective layer forming step (S310), adhesive layer forming step (S320), base film forming step (S330), adhesive layer forming step (S340), release film forming step (S350). It is configured by.

The protective layer forming step (S310) is a step of using the veneer or artificial leather used in the first embodiment as the main fabric and selectively laminating the auxiliary fabric, in one region of the lower surface or the upper surface of the protective layer, that is, the curved region of the adherend. Form at least one softline. In addition, when the auxiliary fabric is laminated to the main fabric, first, an adhesive is applied on the main fabric to form a second adhesive layer. The auxiliary fabric is interlocked, heated and pressurized, and then plate-laminated, roller-laminated, and hot-press manually laminated. At this time, the temperature is preferably in the range of 20 to 300 ° C., the pressure is in the range of 5 to 110 MPa, and the compression is performed for 1 second to 3 minutes.

On the other hand, a pigment and paste may be coated on the upper or lower surface of the protective layer to add various functional layers. As described above, the method may further include forming an antistatic layer, an anti-scratch coating layer, and an electromagnetic wave shielding layer.

The adhesive layer forming step (S320) is a step of forming a first adhesive layer by mixing a raw material resin with a solvent on a lower surface of the protective layer, dissolving, stirring and aging, and then applying an adhesive to the first layer, including coating, drying, and curing.

The application of adhesives is spray coating, rotary screen process, roll coating process, flat coating process, fine precision coating process, UV coating process, “one stop roll to roll” coating process, flat screen screen coating process, roll screen coating process, PCB screen coating process, gravure coating process can proceed.

In addition, the adhesive is preferably maintained at room temperature of 15 to 35 ℃, humidity of about 20 to 75%, relative humidity is preferably in the range of 15 to 65 Rh%.

In addition, when drying and curing, by applying the appropriate temperature and time depending on the materials and components of the base film, the adhesive and the adhesive, the curing or curing by various drying methods such as duct cone drying method, hot air and hot wire drying method, thermal drying method A drying process is carried out to evaporate and dry the solvent component in the adhesive or adhesive so that only each raw material component is seated. At this time, the drying conditions are preferably dried for 2 seconds to 95 minutes at 25 ℃ ~ 300 ℃ temperature.

On the other hand, if the adhesive to be used is an acrylic adhesive, the temperature of the reactor should be set in the range of 25 to 125 ° C., and aged through 8 to 12 hours. If the adhesive is hot melt, the temperature of the reactor should be 15 to 105 ° C. Set it to a range, and use a aging process in the range of 12 to 15 hours.

Substrate film forming step (S330) is a step of forming a film formed of a material having a suitable resistance value for temperature, deformation, pressure, humidity, discoloration, etc. required in the manufacture of the surface protection paper on the lower surface of the adhesive layer.

The pressure-sensitive adhesive layer forming step (S340) is a step of forming the pressure-sensitive adhesive prepared on the lower surface of the base film by setting the appropriate mixing ratio of the raw material resin and the solvent within the above-mentioned range to be suitable for the required adhesiveness, as described above. At this time, in order not to leave residues on the surface when removing the surface protective paper from the adherend, it is preferable to treat the pressure-sensitive adhesive layer in an embossed form in order to adjust the adhesive strength.

Release film forming step (S350) is a step of forming a release film having a release layer formed on at least one surface of the release paper on the lower surface of the pressure-sensitive adhesive layer, the coating thickness of the release layer is preferably used in the range of about 20 to 150 ㎛ thickness.

Meanwhile, the surface protective paper according to the present invention may further include a compression lamination step. The compression lamination step is performed after the release film forming step described above, and passes through the produced surface protection paper between the rollers and the rollers to form the surface protection paper with a desired lamination strength.

Another aspect of the invention provides a method of using a surface protective paper. The surface protection paper according to the present invention can be used easily by the user. In other words, it can be used simply by removing the release film on the top of the surface protective paper and attaching the exposed pressure-sensitive adhesive layer to a desired portion of the adherend. At this time, according to the user's convenience can be attached using a liquid material as an adhesive medium. That is, after removing the release film, the liquid substance may be applied to the adherend or the base film adhesive surface, and then the surface protective paper may be attached to the adherend. As a result, the strong adhesive force of the pressure-sensitive adhesive layer can be temporarily relaxed to prevent film deformation during positioning and re-adhesion. At this time, the liquid material used is a mixture of water and additives, 70 to 80% by weight of water, 20 to 30% of the additive is used. The additive may be selected from surfactants, isopropyl alcohol, or mixtures thereof.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

110, 210: protective layer 111, 211: main fabric
113, 213: Second adhesive layer 115, 215: auxiliary fabric
117, 217: soft pattern 120, 220: first adhesive layer
130, 230: base film 140, 240: pressure-sensitive adhesive layer
150, 250: Release film

Claims (30)

As surface protection paper to protect the surface of the adherend,
A protective layer having a soft pattern formed thereon, the pattern being foldable on at least one surface;
A base film provided on the protective layer;
An adhesive layer provided on the base film; And
It includes a release film provided on the pressure-sensitive adhesive layer,
The soft pattern is at least one surface protection paper formed on a portion corresponding to the bending area of the adherend to which the surface protection paper is attached. The method of claim 1,
Surface protective paper further provided with a first adhesive layer between the protective layer and the base film. The method of claim 1,
The soft pattern is a surface protection paper is a half-slit cut to a depth of 1/10 to 9/10 of the thickness of the protective layer on one surface of the protective layer. The method of claim 1,
The soft pattern is a surface protective paper formed by attaching a pattern layer having the soft pattern on one surface of the protective layer.

The method of claim 1,
The soft pattern is a surface protective paper which is a line of sight that has a mark that can be folded on at least one surface of the protective layer without being cut or cracked on the surface. The method of claim 1,
The protective layer is a surface protective paper, the secondary fabric is laminated on the main fabric and the surface facing the main fabric to the base film.

The method of claim 6,
Surface protective paper comprising a second adhesive layer between the main fabric and the auxiliary fabric.

The method of claim 6,
The main fabric is a surface protection paper made of wood or leather.

The method of claim 6,
Surface thickness of the main fabric is 0.02mm to 5mm.

The method of claim 8,
The main fabric is made of wood, the soft pattern is a surface protection paper formed on the surface exposed to the main fabric.

The method of claim 8,
The main fabric is made of leather, the soft pattern is a surface protective paper formed on any surface of the main fabric of the protective layer.

The method of claim 8,
The main fabric is made of wood, the auxiliary fabric is paper, non-woven fabric, OPP, PP, and PE is one of the surface protection paper selected from the group consisting of.

The method of claim 8,
The main fabric is a leather material, the auxiliary fabric is a surface protection paper that is selected from the group consisting of PU, PVC, PET, PP, PE, non-woven fabric, paper, fiber and OPP.

The method of claim 8,
The leather is artificial leather, and the artificial leather is made of a material selected from the group consisting of release coated R / P (Release Paper), paper, fiber, PU, PET, PP, OPP, and nonwoven fabric having a desired pattern formed thereon. A surface protective paper made of artificial leather having a skin layer having a thickness of 5 µm to 300 µm formed by coating or spraying a polyurethane or polyvinyl chloride on the surface and separating the surface from the selected material through a drying process.

The method of claim 6,
The auxiliary fabric is a surface protective paper formed to a thickness of 10 ㎛ ~ 300 ㎛.

The method of claim 1,
At least one surface of the protective layer surface protection paper further comprises at least one layer selected from the group consisting of an antistatic layer, a scratch-resistant coating layer, an electromagnetic wave shielding layer.

The method of claim 1,
Surface to which the protective layer is exposed to the outside is a surface protective paper UV coating layer or varnish layer further formed.

The method of claim 1,
The material of the base film is polyurethane, polypropylene oxide, polyisocyanate, hydroxyethyl, polyvinylchloride, polyethylene terephthalate (PET), monoacrylic Mono acrylate, poly acrylate, poly methyl methacrylate, polycarbonate, polyethylene, methacrylate, polypropylene, cellulose Acetate butyrate (CAB), ethylene vinyl acetate (EVA), polyvinyl alcohol (PVA), acrylate (arcylate), propylene oxide, poly propylene, polyethylene, OPP (Oriented poly) propylene), PVC and copolymers thereof, the surface protective paper which is selected from the group consisting of.

The method of claim 1,
The release film is paper, polypropylene (Poly propylene), polyethylene terephthalate (Polyethylene Terephthalate), OPP (Oriented poly propylene), and the surface protective paper coated on one side of the release paper selected from the group consisting of PVC.

The method of claim 19,
The release film is a surface protective paper coated with PE or silicon (silicone) of the thickness range from 2 to 150 ㎛ on the surface.

The method of claim 2,
The pressure-sensitive adhesive and the adhesive used in the first adhesive layer and the pressure-sensitive adhesive layer is a surface protective paper using an emulsion type (Emulsion Type) as a silicone-based, acrylic, or hot melt adhesive and adhesive.

The method of claim 21,
The pressure-sensitive adhesive layer is a surface protective paper formed in the embossed shape.

A protective layer forming step of forming a soft pattern in which at least one surface of the provided protective layer is a pattern that can be folded in at least one or more lines on a portion corresponding to the curved region of the adherend to which the surface protective paper is attached;
An adhesive layer forming step of applying and drying an adhesive on the protective layer;
A base film forming step of forming a base film on the adhesive layer;
An adhesive layer forming step of forming an adhesive layer on the base film; And
Method of producing a surface protective paper comprising a release film forming step of forming a release film on the adhesive layer.

The method of claim 23, wherein
The protective layer forming step further comprises the step of laminating the auxiliary fabric after applying the adhesive on the surface facing the main fabric of the protective layer to the adhesive layer.

The method of claim 24,
In the lamination, the temperature is in the range of 20 to 300 ℃, the pressure is 5 to 110MPa method of producing a surface protective paper.

The method of claim 23, wherein
And a press-bonding paper step of forming a desired thickness by passing the surface protection paper between the rollers and the roller after the release film forming step.

24. The method of claim 23,
Formation of the adhesive and pressure-sensitive adhesive is spray coating, rotary screen process, roll coating process, flat coating process, fine precision coating process, UV coating process, one stop roll to roll coating process, flat screen screen coating process, roll screen coating process, A method for producing a surface protective paper using one method selected from the group consisting of a PCB screen coating process and a gravure coating process.

23. A method of using a surface protective paper, wherein the release film of the surface protective paper of any one of claims 1 to 22 is removed and adhered to the adherend.

The method of claim 28,
The method of using a surface protective paper to apply a liquid material to the adherend or the substrate film adhesive surface before attaching the surface protective paper from which the release film is removed to the adherend. The method of claim 8,
The leather is artificial leather, and the artificial leather is deposited in a tank containing polyurethane or polyvinyl chloride by selecting one selected from the group consisting of paper, fiber, PU, PET, PP, OPP, and nonwoven fabric. The surface protective paper which consists of a patterned flat leather, the pattern-formed artificial leather in which the solution was pressed in the half-cured state, and the roll type mold.

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