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WO2014092282A1 - Interior film for metallic exterior effect, and method for manufacturing same - Google Patents

Interior film for metallic exterior effect, and method for manufacturing same Download PDF

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Publication number
WO2014092282A1
WO2014092282A1 PCT/KR2013/006767 KR2013006767W WO2014092282A1 WO 2014092282 A1 WO2014092282 A1 WO 2014092282A1 KR 2013006767 W KR2013006767 W KR 2013006767W WO 2014092282 A1 WO2014092282 A1 WO 2014092282A1
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WIPO (PCT)
Prior art keywords
roll
curable resin
layer
ultraviolet curable
base sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2013/006767
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French (fr)
Korean (ko)
Inventor
신준범
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LX Hausys Ltd
Original Assignee
LG Hausys Ltd
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Filing date
Publication date
Application filed by LG Hausys Ltd filed Critical LG Hausys Ltd
Publication of WO2014092282A1 publication Critical patent/WO2014092282A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00—Treatment by energy or chemical effects
    • B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
    • B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
    • B32B2310/0831—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation using UV radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2451/00—Decorative or ornamental articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels
    • B32B2607/02—Wall papers, wall coverings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings

Definitions

  • the present invention relates to an interior film and a method of manufacturing the same for implementing the metallic appearance effect.
  • fine incontinences are present on the surface of the film, such as metals such as stainless steel, and should have a metallic color as a characteristic of the material itself rather than a simple coating.
  • Korean Patent Application Publication No. 10-2006-0078530 discloses a metal effect consisting of a PET film having a hairline pattern, and a primer layer, an aluminum deposition layer, a urethane adhesive layer, and a thermoplastic resin layer sequentially below the hairline pattern.
  • the inner high gloss sheet is described.
  • the present inventors have completed the present invention by confirming that the film can be made as if it is made of a metal material when using the embossing roll of the present invention while studying to implement a more natural metallic appearance.
  • It provides a method for producing a film comprising the step of forming a metal layer 400 on the lower end of the primer layer (300).
  • the film produced by the method of the present invention is fine and smooth lines are formed on the surface, giving an impression as if made of a metal. Moreover, when a film is manufactured by the method of this invention, a horizontal line can be formed in the surface of a film.
  • Figure 2 shows a method for producing a base film laminated with an ultraviolet curable resin layer.
  • FIG 3 shows the structure of the film F of the present invention.
  • the method for manufacturing a film comprising forming a metal layer 400 at the bottom of the primer layer 300 (FIG. 1).
  • the ultraviolet curable resin 40 is supplied between the first roll 10 and the second roll 20, and at least one of the first roll 10 and the second roll 20 rotates, It may include the step of transferring the irregularities of the second roll 20 to the ultraviolet curable resin (Fig. 2).
  • the adhesive layer is for the film laminated in order (FIG. 3).
  • the base sheet 200 of the present invention may be used a polyester resin, an acrylic resin, a urethane resin or an olefin resin that can be molded by heat, and preferably a polyester resin such as a polyalkylene terephthalate resin. Is advantageously used, more preferably polyethylene terephthalate or polybutylene terephthalate.
  • the base sheet 200 of the present invention has a haze value of less than 10%.
  • the haze value of the base sheet 200 of the present invention exceeds 10%, the metal layer 400 is not well visible to the appearance of the film, the metallic appearance of the film may be inhibited.
  • the base sheet 200 of the present invention has a thickness of 20 ⁇ 50 ⁇ m.
  • the thickness of the base sheet 200 is less than 20 ⁇ m, the base sheet 200 having the ultraviolet curable resin layer 100 formed on the top thereof is not likely to support the ultraviolet curable resin layer 100 and may be damaged in shape.
  • the thickness of the base sheet 200 exceeds 50 ⁇ m, the characteristics of the bottom metal layer 400 is not sufficiently seen in the appearance of the film.
  • the ultraviolet curable resin layer 100 of the present invention may be formed of an ultraviolet curable resin composition composed of an urethane or acrylic monomer, an oligomer thereof, a photoinitiator and other additives to supplement physical properties.
  • the acrylic monomer may be an acrylate or urethane acrylate having an alkyl group having 1 to 12 carbon atoms.
  • the acrylic monomer may be butyl acrylate, hexyl acrylate, n-octyl acrylate, isooctyl acrylate, 2-ethylhexyl acrylate, isononyl acrylate or other (meth) acrylate monomer, etc. It is not limited to this.
  • the photoinitiator may be a radical initiator well known in the art such as 2,2'-azobisisobutyronitrile (AIBN), benzoyl peroxide (BPO) may be used, but is not particularly limited.
  • AIBN 2,2'-azobisisobutyronitrile
  • BPO benzoyl peroxide
  • the resin composition used to manufacture the UV-curable resin layer 100 a resin composition having a solid content of 30 to 100% by weight may be used, and a solvent is added to form the same unevenness as the unevenness formed in a mold such as an embossing roll. It is preferable to use the resin composition of 100 weight% of solids which are not. When solid content of the said resin composition is less than 30 weight%, adhesiveness of a resin composition and an embossing roll becomes low and the formation efficiency of the ultraviolet curable resin layer 100 becomes low.
  • the ultraviolet curable resin layer 100 of the present invention is formed by a method comprising the following steps:
  • the ultraviolet curable resin is supplied between the first roll 10 and the second roll 20, and at least one of the first roll 10 and the second roll 20 is rotated to form the ultraviolet curable resin. Transferring the unevenness of the second roll 20 to (S203).
  • Preparing the first roll 10 in which the base sheet 200 of the present invention is located on the surface (S201) is to place the base sheet 200 on the whole or part of the surface of the first roll (10). At this time, a part of the base sheet 200 is spread over the first roll 10, and as the first roll 10 rotates, the remaining part of the base sheet 200 comes along in the direction of the first roll 10. It is common to be in the form of coming.
  • the first roll 10 is disposed at a position not in contact with the second roll 20 having irregularities on the surface, and the curing lamp 30 is disposed at an adjacent position (S202) on the surface of the ultraviolet curable resin. It is a preliminary step to harden by forming irregularities. At this time, the first roll 10 is disposed in a position not in contact with the second roll 20 having irregularities on the surface, which is ultraviolet curable between the first roll 10 and the second roll 20. This is because the resin must be supplied. Therefore, the distance between the first roll 10 and the second roll 20 is determined according to the thickness of the ultraviolet curable resin layer 100, which can be appropriately adjusted by those skilled in the art as needed. Unevenness is formed on the surface of the second roll 20. The unevenness is to form unevenness in the reverse phase in the UV-curable resin layer 100. That is, the recessed part is formed in the ultraviolet curable resin layer 100 corresponding to the convex part of the 2nd roll 20.
  • the unevenness of the surface of the second roll 20 has a concave portion and a convex portion, the area of the convex portion is narrower than the area of the concave portion, the convex portion has a height of 0.3 ⁇ 0.7 ⁇ m.
  • the curing lamp 30 is an ultraviolet lamp for curing the ultraviolet curable resin supplied between the first roll 10 and the second roll 20.
  • the curing lamp 30 is disposed at a position adjacent to the first roll 10 and the second roll 20, and the ultraviolet curable resin is supplied based on the first roll 10 or the second roll 20. It is preferable to arrange in the direction opposite to the direction to become.
  • the ultraviolet curable resin is supplied between the first roll 10 and the second roll 20, and at least one of the first roll 10 and the second roll 20 is rotated to form the ultraviolet curable resin.
  • Transferring the unevenness of the second roll 20 to the step (S203) is a step of manufacturing the base sheet 200 in which the UV-curable resin layer 100 having the unevenness formed on the surface is laminated.
  • the UV-curable resin supplied is laminated on the base sheet 200 while passing between the first roll 10 and the second roll 20, and the unevenness is transferred and cured to the surface. . That is, the unevenness of the second roll 20 is transferred to the ultraviolet curable resin and the ultraviolet curable resin layer 100 is formed on the top of the base sheet 200. It is preferable that both the first roll 10 and the second roll 20 rotate.
  • the forming step (S2) of the UV-curable resin layer 100 is prepared from the step (S203) of transferring the unevenness of the second roll 20 to the UV-curable resin, the UV-curable resin layer 100 is laminated on the top Secondary curing of the base sheet 200 using a separate curing lamp (S204) may be further included. By the secondary curing step (S204), the physical properties of the ultraviolet curable resin becomes more stable.
  • the thickness of the ultraviolet curable resin layer 100 is 10 to 30 ⁇ m.
  • the thickness of the ultraviolet curable resin layer 100 is less than 10 ⁇ m, the bonding force between the ultraviolet curable resin layer 100 and the base sheet 200 may be a problem.
  • the thickness of the UV-curable resin layer 100 exceeds 30 ⁇ m, the characteristics of the bottom metal layer 400 may not be sufficiently seen in the appearance of the film.
  • the ultraviolet curable resin layer 100 of the present invention has a haze value of less than 10%.
  • the haze value of the ultraviolet curable resin layer 100 of the present invention exceeds 10%, the metal layer 400 is not well visible to the appearance of the film, the metallic appearance of the film may be inhibited.
  • the ultraviolet curable resin layer 100 of the present invention has irregularities on its surface, and the irregularities are formed in reverse phase corresponding to the irregularities of the second roll 20.
  • the unevenness of the ultraviolet curable resin layer 100 of the present invention is located in the opposite direction of the base sheet 200.
  • the unevenness of the surface of the ultraviolet curable resin layer 100 of the present invention has a concave portion and a convex portion, the area of the concave portion is narrower than the area of the convex portion, the concave portion has a depth of 0.3 ⁇ 0.7 ⁇ m.
  • the depth of the recess is less than 0.3 ⁇ m, the fine incontinence observed on the metal surface does not appear well, and it is difficult to realize the metallic feeling intended in the present invention.
  • the depth of the concave portion exceeds 0.7 ⁇ m, the incontinence of the general metal surface, that is, similarity to the hairline is inferior, it is also difficult to implement the metallic feeling intended in the present invention.
  • the surface of the ultraviolet curable resin layer 100 of this invention contains the recessed part which satisfy
  • Primer layer 300 of the present invention is located between the base sheet 200 and the metal layer 400, and increases the adhesion of the base sheet 200 and the metal layer 400.
  • the primer layer 300 may be acrylic, acrylic urethane, epoxy, polyurethane, polyisocyanate, polyester, acrylate, ethylene-vinyl acetate copolymer, polyamide, melamine, synthetic rubber, or polyvinyl. Alcohol-based resins;
  • the primer layer 300 may be formed on the bottom of the base sheet 200 by using a known method such as a gravure coating method.
  • the lower end of the base sheet 200 layer means a direction opposite to the ultraviolet curable resin layer 100 based on the base sheet 200.
  • the primer layer 300 may adjust the thickness by changing the solution phase viscosity of the resin, the thickness is preferably formed to 1 ⁇ 5 ⁇ m.
  • the thickness of the primer layer 300 is in the range of 1 to 5 ⁇ m, the adhesion of the base sheet 200 and the metal layer 400 can be sufficiently deposited, but the thickness of the film does not become thicker than necessary.
  • the metal layer 400 of the present invention is formed by depositing a metal component on the bottom of the primer layer 300.
  • the metal layer 400 may be formed by a general vacuum thermal deposition method or a sputtering method.
  • vacuum deposition may be performed at 10 -4 to 10 -6 torr and 300 to 800 ° C.
  • the metal nanoparticles may be coated on the metal nanoparticles so that the metal deposition may be performed at a thickness of about 0.70 OD (Optical Density), but the deposition method is not particularly limited.
  • the metal may be gold, silver, cobalt, aluminum, iron, nickel, chromium, copper, circumferential speed, stainless steel, and the like, preferably aluminum, but is not limited thereto. Those skilled in the art can select the appropriate metal according to the metal texture to be implemented to form the metal layer 400 of the present invention.
  • the metal layer 400 of the present invention is detected in appearance through the ultraviolet curable resin layer 100, the base sheet 200, and the primer layer 300.
  • the metal layer 400 allows the film of the present invention to implement a texture more similar to that of metal and to express metallic color.
  • the metal layer 400 of the present invention is formed to a thickness of 100 ⁇ 1000 nm.
  • the thickness of the metal layer 400 is less than 100 nm, it is difficult to detect the metallic feeling outside the film.
  • the thickness of the metal layer 400 exceeds 1000 nm, the cost increases more than necessary.
  • the metal layer 400 of the present invention may be a single metal thin film layer or a metal thin film layer having a multi-layered structure.
  • the use of the metal thin film layer in which the metal thin film layer is deposited in various layers is more diverse than the use of a single metal thin film layer. Implementation is possible.
  • the adhesive layer of the present invention is formed at the bottom of the metal layer 400 of the present invention.
  • the adhesive layer of the present invention is used to attach the film of the present invention to an adherend.
  • the adherend may be a plate such as an electronic product.
  • the adhesive layer of the present invention can be formed by applying a thickness of 5 ⁇ 10 ⁇ m by a comma coating method using an adhesive such as polyurethane or polyester, and by forming an opaque layer can produce a more sharp three-dimensional effect. It is also possible to apply the adhesive layer by microgravure coating. When the adhesive layer is formed of an opaque layer in the present invention, a pigment may be added to the adhesive composition forming the adhesive layer.
  • the film of the present invention the UV-curable resin layer 100 is formed with irregularities on the surface; Base sheet 200; Primer layer 300; The metal layer 400; and the adhesive layer is a film laminated in order.
  • the film of this invention is an interior film, a decorative film, etc.
  • the film of the present invention is used by being attached to the surface of electronic products, furniture, interior and exterior materials for indoor and outdoor interior. This makes the film of the present invention feel as if the articles were made of metal.
  • a high transparency PET sheet having a haze of 6%, a light transmittance of 92% or more, a glossiness of 160%, and a thickness of 30 ⁇ m was prepared, and the PET sheet was placed on a first roll.
  • An acrylate resin composition having a solid content of 70% was prepared, containing 10 parts by weight of 2,2'-azobisisobutyronitrile (AIBN) based on 100 parts by weight of urethane acrylate as the ultraviolet curable resin coating liquid.
  • the UV-curable resin coating solution was supplied between the first roll and the second roll, and at the same time, the UV-cured resin was primarily cured using a UV lamp. Thereafter, the first ultraviolet curable resin layer was second cured with a separate UV lamp to form an ultraviolet curable resin layer having irregularities on the surface of the base sheet.
  • the thickness of the ultraviolet curable resin layer was 20 ⁇ m, and recesses were formed on the surface of the ultraviolet curable resin layer along the length direction of the film. After sufficiently drying this, a primer layer having a thickness of 4 ⁇ m was formed by gravure coating using an acrylic resin at the bottom of the base sheet.
  • An aluminum deposition layer having a thickness of 600 ⁇ m was formed at the bottom of the primer layer by vacuum deposition at 10 ⁇ 4 Torr and 760 ° C. Then, the film of the present invention was prepared by applying a comma cota method to a thickness of 10 ⁇ m to form a polyester adhesive layer on the bottom of the aluminum deposition layer.
  • the film has long incontinences (concave portions) formed on the surface of the ultraviolet curable resin layer in the width direction as well as the length direction of the film, and the color of the metal layer is reflected and the feeling of being made of stainless steel despite being a resin film. Gave.
  • the present invention relates to an interior film and a method of manufacturing the same for implementing the metallic appearance effect.
  • the film produced by the method of the present invention is fine and smooth lines are formed on the surface, giving an impression as if made of a metal.
  • a horizontal line can be formed in the surface of a film.

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Abstract

The present invention relates to a film in which a UV-curable resin layer having a concavo-convex surface, a base material sheet, a primer layer, a metallic layer, and an adhesion layer are laminated in sequential order. Also, the present invention relates to a method for manufacturing said film.

Description

금속 외관 효과를 구현하는 인테리어 필름 및 그 제조방법Interior film realizing the appearance of metal and its manufacturing method

본 발명은 금속 외관 효과를 구현하는 인테리어 필름 및 그 제조방법에 대한 것이다.The present invention relates to an interior film and a method of manufacturing the same for implementing the metallic appearance effect.

가전제품, 건축물의 내외장재에는 인테리어를 위하여 금속 외관 효과를 갖는 필름에 대한 수요가 많다. 이러한 필름들은 수지 재질이어서 경제적이고 다루기가 쉬움에도 불구하고, 마치 고가의 스테인레스 스틸 등 금속 재질로 된 것 같은 느낌을 준다.In the interior and exterior materials of home appliances, buildings, there is a great demand for a film having a metallic appearance effect for the interior. Although these films are resinous and economical and easy to handle, they feel like they are made of metal, such as expensive stainless steel.

이를 위하여는 필름의 표면에 마치 스테인레스 스틸 등 금속들과 같이 미세한 실금들이 나 있으며, 단순한 코팅이 아니라 재질 자체의 특성인 것 같은 금속성 색채를 가져야 한다. For this purpose, fine incontinences are present on the surface of the film, such as metals such as stainless steel, and should have a metallic color as a characteristic of the material itself rather than a simple coating.

예컨대, 대한민국 공개공보 제10-2006-0078530호에는 헤어라인 무늬가 형성된 PET필름과, 상기 헤어라인 무늬의 하부에 순차적으로 프라이머층과 알루미늄 증착층, 우레탄 접착제층, 열가소성 수지층으로 이루어지는 금속효과를 내는 고광택 시트가 기재되어 있다.For example, Korean Patent Application Publication No. 10-2006-0078530 discloses a metal effect consisting of a PET film having a hairline pattern, and a primer layer, an aluminum deposition layer, a urethane adhesive layer, and a thermoplastic resin layer sequentially below the hairline pattern. The inner high gloss sheet is described.

그러나 사포롤을 통과시켜 필름 표면을 긁어 헤어라인, 즉 실금을 형성하였던 종래 기술로는, 필름 길이 방향의 라인, 즉, 세로 라인은 형성되나 필름 폭 방향의 라인, 즉 가로 라인 형성이 어려웠다. 이 때문에 필름에 세로 라인의 실금들만이 나타나 금속 재질이라기에는 자연스러움이 떨어지는 문제가 있었다. However, in the prior art in which hairline, that is, incontinence, was formed by passing a sandpaper roll to scrape the film surface, lines in the film length direction, that is, vertical lines were formed, but it was difficult to form lines in the film width direction, that is, horizontal lines. Because of this, only the incontinence of the vertical line appears in the film, there was a problem that the natural material is inferior.

이에, 본 발명자들은 좀더 자연스러운 금속성 외관을 구현하고자 연구하던 중 본 발명의 엠보 롤을 이용하는 경우 마치 금속 재질로 이루어진 것 같은 필름을 제조할 수 있는 것을 확인하고 본 발명을 완성하였다. Thus, the present inventors have completed the present invention by confirming that the film can be made as if it is made of a metal material when using the embossing roll of the present invention while studying to implement a more natural metallic appearance.

본 발명의 목적은 금속성 외관을 갖는 필름의 제조 방법을 제공하는 것이다.It is an object of the present invention to provide a method for producing a film having a metallic appearance.

상기 목적을 달성하기 위하여 본 발명은,The present invention to achieve the above object,

기재시트(200)를 준비하는 단계;Preparing a base sheet 200;

상기 기재시트(200)의 상단에 표면에 요철이 형성된 자외선경화성 수지층(100)을 형성시키는 단계;Forming an ultraviolet curable resin layer 100 having irregularities on a surface of the base sheet 200;

상기 기재시트(200)의 하단에 프라이머층(300)을 형성시키는 단계;및Forming a primer layer 300 on the bottom of the base sheet 200; and

상기 프라이머층(300)의 하단에 금속층(400)을 형성시키는 단계를 포함하는 필름의 제조 방법을 제공한다.It provides a method for producing a film comprising the step of forming a metal layer 400 on the lower end of the primer layer (300).

또한 본 발명은,In addition, the present invention,

표면에 요철이 형성된 자외선경화성 수지층(100);An ultraviolet curable resin layer 100 having irregularities formed on a surface thereof;

기재시트(200);Base sheet 200;

프라이머층(300);Primer layer 300;

금속층(400);Metal layer 400;

접착층;및Adhesive layer; and

이형층이 순서대로 적층된 필름을 제공한다. It provides a film in which a release layer is laminated in order.

본 발명의 방법으로 제조된 필름은 표면에 미세하면서도 부드러운 라인들이 형성되어, 마치 금속으로 이루어진 것과 같은 인상을 주게 된다. 또한 본 발명의 방법으로 필름을 제조하면, 필름의 표면에 가로 라인을 형성할 수 있다.The film produced by the method of the present invention is fine and smooth lines are formed on the surface, giving an impression as if made of a metal. Moreover, when a film is manufactured by the method of this invention, a horizontal line can be formed in the surface of a film.

도 1은 본 발명의 필름(F)의 제조 방법을 나타내는 모식도이다.1: is a schematic diagram which shows the manufacturing method of the film F of this invention.

도 2는 자외선경화성 수지층이 적층된 기재필름의 제조 방법을 나타낸다.Figure 2 shows a method for producing a base film laminated with an ultraviolet curable resin layer.

도 3은 본 발명의 필름(F)의 구조를 나타낸다.3 shows the structure of the film F of the present invention.

도 4는 본 발명의 필름(F)의 자외선경화성 수지층(100)의 표면의 오목부를 나타낸다.4 shows a recessed portion of the surface of the ultraviolet curable resin layer 100 of the film F of the present invention.

본 발명은,The present invention,

기재시트(200)를 준비하는 단계;Preparing a base sheet 200;

상기 기재시트(200)의 상단에 표면에 요철이 형성된 자외선경화성 수지층(100)을 형성시키는 단계;Forming an ultraviolet curable resin layer 100 having irregularities on a surface of the base sheet 200;

상기 기재시트(200)의 하단에 프라이머층(300)을 형성시키는 단계;및Forming a primer layer 300 on the bottom of the base sheet 200; and

상기 프라이머층(300)의 하단에 금속층(400)을 형성시키는 단계를 포함하는 필름의 제조 방법에 대한 것이다(도 1).The method for manufacturing a film comprising forming a metal layer 400 at the bottom of the primer layer 300 (FIG. 1).

이 때, 상기 자외선경화성 수지층(100)의 형성 단계는,At this time, the step of forming the ultraviolet curable resin layer 100,

상기 기재시트(200)가 표면에 위치하는 제1롤(10)을 준비하는 단계;Preparing a first roll 10 having the base sheet 200 located on a surface thereof;

상기 제1롤(10)을 표면에 요철이 형성된 제2롤(20)과 접하지 않는 위치에 배치하고, 인접한 위치에 경화 램프(30)를 배치하는 단계;Arranging the first roll (10) at a position not in contact with the second roll (20) having irregularities on the surface, and placing a curing lamp (30) at an adjacent position;

상기 제1롤(10) 및 상기 제2롤(20)의 사이에 자외선경화성 수지(40)를 공급하고, 상기 제1롤(10) 및 제2롤(20) 중 하나 이상이 회전하면서, 상기 자외선경화성 수지에 제2롤(20)의 요철을 전사시키는 단계를 포함할 수 있다(도 2).The ultraviolet curable resin 40 is supplied between the first roll 10 and the second roll 20, and at least one of the first roll 10 and the second roll 20 rotates, It may include the step of transferring the irregularities of the second roll 20 to the ultraviolet curable resin (Fig. 2).

또한 본 발명은In addition, the present invention

표면에 요철이 형성된 자외선경화성 수지층(100);An ultraviolet curable resin layer 100 having irregularities formed on a surface thereof;

기재시트(200);Base sheet 200;

프라이머층(300);Primer layer 300;

금속층(400);및Metal layer 400; and

접착층이 순서대로 적층된 필름에 대한 것이다(도 3).The adhesive layer is for the film laminated in order (FIG. 3).

이하, 본 발명을 자세히 설명한다.Hereinafter, the present invention will be described in detail.

기재시트(200)의 준비 단계(S1)Preparation step of the base sheet 200 (S1)

본 발명의 기재시트(200)는 열에 의하여 성형이 가능한 폴리에스테르계 수지, 아크릴계 수지, 우레탄계 수지 또는 올레핀계 수지 등이 사용될 수 있으며, 바람직하게는 폴리알킬렌테레프탈레이트계 수지와 같은 폴리에스테르계 수지를 사용하는 것이 유리하고, 더욱 바람직하게는 폴리에틸렌테레프탈레이트 또는 폴리부틸렌테레프탈레이트를 사용한다. The base sheet 200 of the present invention may be used a polyester resin, an acrylic resin, a urethane resin or an olefin resin that can be molded by heat, and preferably a polyester resin such as a polyalkylene terephthalate resin. Is advantageously used, more preferably polyethylene terephthalate or polybutylene terephthalate.

본 발명의 기재시트(200)는 10 % 미만의 헤이즈 값을 갖는다. 본 발명의 기재시트(200)의 헤이즈값이 10 %를 초과하는 경우, 금속층(400)이 필름 외관까지 잘 투시되지 않아, 필름의 금속성 외관 특성이 저해될 수 있다.The base sheet 200 of the present invention has a haze value of less than 10%. When the haze value of the base sheet 200 of the present invention exceeds 10%, the metal layer 400 is not well visible to the appearance of the film, the metallic appearance of the film may be inhibited.

본 발명의 기재시트(200)는 20 ~ 50 μm의 두께를 갖는다. 기재시트(200)의 두께가 20 μm 미만인 경우, 상단에 자외선경화성 수지층(100)이 형성된 기재시트(200)가 자외선경화성 수지층(100)을 지지하지 못하고 형태가 망가질 가능성이 높다. 또한 기재시트(200)의 두께가 50 μm를 초과하는 경우, 하단의 금속층(400)의 특성이 필름 외관에서 충분히 보여지지 않게 된다.The base sheet 200 of the present invention has a thickness of 20 ~ 50 μm. When the thickness of the base sheet 200 is less than 20 μm, the base sheet 200 having the ultraviolet curable resin layer 100 formed on the top thereof is not likely to support the ultraviolet curable resin layer 100 and may be damaged in shape. In addition, when the thickness of the base sheet 200 exceeds 50 μm, the characteristics of the bottom metal layer 400 is not sufficiently seen in the appearance of the film.

자외선경화성 수지층(100)의 형성 단계(S2)Formation step of the UV-curable resin layer 100 (S2)

자외선경화성 수지층(100)의 형성Formation of UV Curable Resin Layer 100

본 발명의 자외선경화성 수지층(100)은 우레탄 또는 아크릴계 모노머, 이의 올리고머, 광개시제 및 기타 물성을 보완해주는 첨가제로 구성된 자외선 경화형 수지 조성물로 형성할 수 있다. The ultraviolet curable resin layer 100 of the present invention may be formed of an ultraviolet curable resin composition composed of an urethane or acrylic monomer, an oligomer thereof, a photoinitiator and other additives to supplement physical properties.

상기 아크릴계 모노머로는 탄소수 1~12의 알킬기를 가지는 아크릴레이트 또는 우레탄아크릴레이트 등이 될 수 있다. 예컨대, 상기 아크릴계 모노머는 부틸아크릴레이트, 헥실아크릴레이트, n-옥틸아크릴레이트, 이소옥틸아크릴레이트, 2-에틸헥실아크릴레이트, 이소노닐아크릴레이트 또는 기타 (메타)아크릴레이트계 단량체 등이 될 수 있으나, 이에 한정되는 것은 아니다.The acrylic monomer may be an acrylate or urethane acrylate having an alkyl group having 1 to 12 carbon atoms. For example, the acrylic monomer may be butyl acrylate, hexyl acrylate, n-octyl acrylate, isooctyl acrylate, 2-ethylhexyl acrylate, isononyl acrylate or other (meth) acrylate monomer, etc. It is not limited to this.

상기 광개시제는 2,2'-아조비스이소부티로니트릴(AIBN), 벤조일 퍼옥사이드(BPO) 등 당업계에 널리 알려진 라디칼 개시제가 사용될 수 있으며, 특별히 한정되는 것은 아니다.The photoinitiator may be a radical initiator well known in the art such as 2,2'-azobisisobutyronitrile (AIBN), benzoyl peroxide (BPO) may be used, but is not particularly limited.

상기 자외선경화성 수지층(100)의 제조에 사용되는 수지 조성물로는 고형분이 30 ~ 100 중량%인 수지 조성물이 사용될 수 있으며, 엠보싱 롤과 같은 금형에 형성된 요철과 동일한 요철을 형성시키기 위하여 용제를 첨가하지 않은 고형분 100 중량%의 수지 조성물을 사용하는 것이 바람직하다. 상기 수지 조성물의 고형분이 30 중량% 미만인 경우, 수지 조성물과 엠보싱 롤과의 밀착성이 낮아져 자외선경화성 수지층(100)의 형성 효율이 낮아진다.As the resin composition used to manufacture the UV-curable resin layer 100, a resin composition having a solid content of 30 to 100% by weight may be used, and a solvent is added to form the same unevenness as the unevenness formed in a mold such as an embossing roll. It is preferable to use the resin composition of 100 weight% of solids which are not. When solid content of the said resin composition is less than 30 weight%, adhesiveness of a resin composition and an embossing roll becomes low and the formation efficiency of the ultraviolet curable resin layer 100 becomes low.

자외선경화성 수지층(100)의 형성 방법Method of Forming UV Curable Resin Layer 100

본 발명의 자외선경화성 수지층(100)은 하기 단계들을 포함하는 방법으로 형성된다:The ultraviolet curable resin layer 100 of the present invention is formed by a method comprising the following steps:

본 발명의 기재시트(200)가 표면에 위치하는 제1롤(10)을 준비하는 단계(S201);Preparing a first roll 10 in which the base sheet 200 of the present invention is located on the surface (S201);

상기 제1롤(10)을 표면에 요철이 형성된 제2롤(20)과 접하지 않는 위치에 배치하고, 인접한 위치에 경화 램프(30)를 배치하는 단계(S202);Disposing the first roll (10) at a position not in contact with the second roll (20) having irregularities on the surface, and placing a curing lamp (30) at an adjacent position (S202);

상기 제1롤(10) 및 상기 제2롤(20)의 사이에 자외선경화성 수지를 공급하고, 상기 제1롤(10) 및 제2롤(20) 중 하나 이상이 회전하면서, 상기 자외선경화성 수지에 제2롤(20)의 요철을 전사시키는 단계(S203).The ultraviolet curable resin is supplied between the first roll 10 and the second roll 20, and at least one of the first roll 10 and the second roll 20 is rotated to form the ultraviolet curable resin. Transferring the unevenness of the second roll 20 to (S203).

본 발명의 기재시트(200)가 표면에 위치하는 제1롤(10)을 준비하는 단계(S201)는 제1롤(10)의 표면 전체 또는 일부에 기재시트(200)를 위치시키는 것이다. 이 때, 제1롤(10)에 기재시트(200)의 일부분이 걸쳐지고, 상기 제1롤(10)이 회전함에 따라 기재시트(200)의 나머지 부분이 제1롤(10) 방향으로 딸려오는 형태가 되는 것이 일반적이다.Preparing the first roll 10 in which the base sheet 200 of the present invention is located on the surface (S201) is to place the base sheet 200 on the whole or part of the surface of the first roll (10). At this time, a part of the base sheet 200 is spread over the first roll 10, and as the first roll 10 rotates, the remaining part of the base sheet 200 comes along in the direction of the first roll 10. It is common to be in the form of coming.

상기 제1롤(10)을 표면에 요철이 형성된 제2롤(20)과 접하지 않는 위치에 배치하고, 인접한 위치에 경화 램프(30)를 배치하는 단계(S202)는 자외선경화성 수지의 표면에 요철을 형성하며 경화시키기 위한 전단계이다. 이 때, 상기 제1롤(10)은 표면에 요철이 형성된 제2롤(20)과 접하지 않는 위치에 배치되는데, 이는 제1롤(10)과 제2롤(20)의 사이에 자외선경화성 수지를 공급하여야 하기 때문이다. 그러므로 자외선경화성 수지층(100)의 두께에 따라 제1롤(10)과 제2롤(20)의 거리가 결정되며, 이는 당업자가 필요에 따라 적당히 조절할 수 있다. 상기 제2롤(20)은 표면에 요철이 형성되어 있는데, 상기 요철은 자외선경화성 수지층(100)에 역상으로 요철을 형성하기 위한 것이다. 즉, 제2롤(20)의 볼록부에 대응하여 자외선경화성 수지층(100)에 오목부가 형성된다.The first roll 10 is disposed at a position not in contact with the second roll 20 having irregularities on the surface, and the curing lamp 30 is disposed at an adjacent position (S202) on the surface of the ultraviolet curable resin. It is a preliminary step to harden by forming irregularities. At this time, the first roll 10 is disposed in a position not in contact with the second roll 20 having irregularities on the surface, which is ultraviolet curable between the first roll 10 and the second roll 20. This is because the resin must be supplied. Therefore, the distance between the first roll 10 and the second roll 20 is determined according to the thickness of the ultraviolet curable resin layer 100, which can be appropriately adjusted by those skilled in the art as needed. Unevenness is formed on the surface of the second roll 20. The unevenness is to form unevenness in the reverse phase in the UV-curable resin layer 100. That is, the recessed part is formed in the ultraviolet curable resin layer 100 corresponding to the convex part of the 2nd roll 20.

상기 제2롤(20)의 표면의 요철은 오목부와 볼록부를 갖는데, 상기 볼록부의 면적은 오목부의 면적보다 좁으며, 상기 볼록부는 0.3 ~ 0.7 μm의 높이를 갖는다.The unevenness of the surface of the second roll 20 has a concave portion and a convex portion, the area of the convex portion is narrower than the area of the concave portion, the convex portion has a height of 0.3 ~ 0.7 μm.

상기 경화 램프(30)는 제1롤(10)과 제2롤(20)의 사이에 공급되는 자외선경화성 수지를 경화시키기 위한 자외선 램프이다. 상기 경화 램프(30)는 제1롤(10) 및 제2롤(20)과 인접한 위치에 배치되며, 상기 제1롤(10) 또는 제2롤(20)을 기준으로 상기 자외선경화성 수지가 공급되는 방향과 반대 방향에 배치하는 것이 바람직하다.The curing lamp 30 is an ultraviolet lamp for curing the ultraviolet curable resin supplied between the first roll 10 and the second roll 20. The curing lamp 30 is disposed at a position adjacent to the first roll 10 and the second roll 20, and the ultraviolet curable resin is supplied based on the first roll 10 or the second roll 20. It is preferable to arrange in the direction opposite to the direction to become.

상기 제1롤(10) 및 상기 제2롤(20)의 사이에 자외선경화성 수지를 공급하고, 상기 제1롤(10) 및 제2롤(20) 중 하나 이상이 회전하면서, 상기 자외선경화성 수지에 제2롤(20)의 요철을 전사시키는 단계(S203)는 표면에 요철이 형성된 자외선경화성 수지층(100)이 적층된 기재시트(200)를 제조하는 단계이다. 상기 단계(S203)에서는 공급된 자외선경화성 수지가 상기 제1롤(10) 및 제2롤(20) 사이를 통과하면서 상기 기재시트(200) 상에 적층되는 것과 동시에 표면에 요철이 전사되고 경화된다. 즉, 상기 자외선경화성 수지에 제2롤(20)의 요철이 전사되는 것과 동시에 기재시트(200)의 상단에 자외선경화성 수지층(100)이 형성된다. 상기 제1롤(10) 및 제2롤(20)은 둘 다 회전하는 것이 바람직하다.The ultraviolet curable resin is supplied between the first roll 10 and the second roll 20, and at least one of the first roll 10 and the second roll 20 is rotated to form the ultraviolet curable resin. Transferring the unevenness of the second roll 20 to the step (S203) is a step of manufacturing the base sheet 200 in which the UV-curable resin layer 100 having the unevenness formed on the surface is laminated. In the step S203, the UV-curable resin supplied is laminated on the base sheet 200 while passing between the first roll 10 and the second roll 20, and the unevenness is transferred and cured to the surface. . That is, the unevenness of the second roll 20 is transferred to the ultraviolet curable resin and the ultraviolet curable resin layer 100 is formed on the top of the base sheet 200. It is preferable that both the first roll 10 and the second roll 20 rotate.

상기 자외선경화성 수지층(100)의 형성 단계(S2)는 자외선경화성 수지에 제2롤(20)의 요철을 전사시키는 단계(S203)로부터 제조된, 상단에 자외선경화성 수지층(100)이 적층된 기재시트(200)를 별개의 경화 램프를 이용하여 2차 경화하는 단계(S204)를 추가로 포함할 수 있다. 상기 2차 경화 단계(S204)에 의하여 상기 자외선경화성 수지의 물성이 좀더 안정적으로 된다. The forming step (S2) of the UV-curable resin layer 100 is prepared from the step (S203) of transferring the unevenness of the second roll 20 to the UV-curable resin, the UV-curable resin layer 100 is laminated on the top Secondary curing of the base sheet 200 using a separate curing lamp (S204) may be further included. By the secondary curing step (S204), the physical properties of the ultraviolet curable resin becomes more stable.

자외선경화성 수지층(100)UV curable resin layer (100)

상기 자외선경화성 수지층(100)의 두께는 10 ~ 30 ㎛로 형성되는 것이 바람직하다. 자외선경화성 수지층(100)의 두께가 10 ㎛ 미만인 경우, 상기 자외선경화성 수지층(100)과 기재시트(200) 간의 결합력이 문제가 될 수 있다. 또한 자외선경화성 수지층(100)의 두께가 30 ㎛를 초과하는 경우, 하단의 금속층(400)의 특성이 필름 외관에서 충분히 보여지지 않을 수 있다.It is preferable that the thickness of the ultraviolet curable resin layer 100 is 10 to 30 μm. When the thickness of the ultraviolet curable resin layer 100 is less than 10 μm, the bonding force between the ultraviolet curable resin layer 100 and the base sheet 200 may be a problem. In addition, when the thickness of the UV-curable resin layer 100 exceeds 30 ㎛, the characteristics of the bottom metal layer 400 may not be sufficiently seen in the appearance of the film.

본 발명의 자외선경화성 수지층(100)은 10 % 미만의 헤이즈 값을 갖는다. 본 발명의 자외선경화성 수지층(100)의 헤이즈값이 10 %를 초과하는 경우, 금속층(400)이 필름 외관까지 잘 투시되지 않아, 필름의 금속성 외관 특성이 저해될 수 있다.The ultraviolet curable resin layer 100 of the present invention has a haze value of less than 10%. When the haze value of the ultraviolet curable resin layer 100 of the present invention exceeds 10%, the metal layer 400 is not well visible to the appearance of the film, the metallic appearance of the film may be inhibited.

본 발명의 자외선경화성 수지층(100)은 표면에 요철을 갖는데, 상기 요철은 상기 제2롤(20)의 요철에 대응하여 역상으로 형성된 것이다. 본 발명의 자외선경화성 수지층(100)의 요철은 기재시트(200)의 반대 방향에 위치한다.The ultraviolet curable resin layer 100 of the present invention has irregularities on its surface, and the irregularities are formed in reverse phase corresponding to the irregularities of the second roll 20. The unevenness of the ultraviolet curable resin layer 100 of the present invention is located in the opposite direction of the base sheet 200.

본 발명의 자외선경화성 수지층(100)의 표면의 요철은 오목부와 볼록부를 갖는데, 상기 오목부의 면적은 볼록부의 면적보다 좁으며, 상기 오목부는 0.3 ~ 0.7 μm의 깊이를 갖는다. 상기 오목부의 깊이가 0.3 μm 미만인 경우, 금속 표면에서 관찰되는 미세한 실금이 잘 나타나지 않아, 본 발명에서 의도한 금속성 느낌을 구현하기가 어렵다. 또한 상기 오목부의 깊이가 0.7 μm를 초과하는 경우, 일반적인 금속 표면의 실금, 즉 헤어라인과의 유사성이 떨어지게 되어, 역시 본 발명에서 의도한 금속성 느낌을 구현하기 어렵게 된다.The unevenness of the surface of the ultraviolet curable resin layer 100 of the present invention has a concave portion and a convex portion, the area of the concave portion is narrower than the area of the convex portion, the concave portion has a depth of 0.3 ~ 0.7 μm. When the depth of the recess is less than 0.3 μm, the fine incontinence observed on the metal surface does not appear well, and it is difficult to realize the metallic feeling intended in the present invention. In addition, when the depth of the concave portion exceeds 0.7 μm, the incontinence of the general metal surface, that is, similarity to the hairline is inferior, it is also difficult to implement the metallic feeling intended in the present invention.

본 발명의 자외선경화성 수지층(100)의 표면에는 하기 식 1을 만족시키는 오목부가 포함된다(도 4). 이는 본 발명의 방법은 자외선경화성 수지층(100)의 표면에 필름 폭 방향의 라인(오목부), 즉 가로 라인을 형성할 수 있기 때문이다.The surface of the ultraviolet curable resin layer 100 of this invention contains the recessed part which satisfy | fills following formula (FIG. 4). This is because the method of the present invention can form lines (concave portions), that is, horizontal lines, in the film width direction on the surface of the ultraviolet curable resin layer 100.

<식 1><Equation 1>

a > ba> b

a: 오목부의 긴 방향(l)의 상기 필름의 길이 방향에 대한 각도a: angle with respect to the longitudinal direction of the said film of the longitudinal direction l of a recessed part

b: 오목부의 긴 방향(l)의 상기 필름의 폭 방향에 대한 각도.b: Angle with respect to the width direction of the said film of the longitudinal direction l of a recessed part.

프라이머층(300)의 형성 단계(S3)Formation step (S3) of the primer layer 300

본 발명의 프라이머층(300)은 기재시트(200)와 금속층(400)의 사이에 위치하며, 기재시트(200)와 금속층(400)의 부착력을 증대시킨다. 상기 프라이머층(300)은 아크릴계, 아크릴 우레탄계, 에폭시계, 폴리우레탄계, 폴리이소시아네이트계, 폴리에스터계, 아크릴레이트계, 에틸렌-초산비닐 공중합체, 폴리아미드계, 멜라민계, 합성고무계, 또는 폴리비닐알콜계 수지 등을 포함할 수 있다. 상기 프라이머층(300)은 기재시트(200)의 하단에 그라비아 코팅법 등 공지의 방법을 이용하여 형성할 수 있다. 상기 기재시트(200)층의 하단이란, 기재시트(200)를 기준으로 자외선경화성 수지층(100)과 반대방향을 의미한다.Primer layer 300 of the present invention is located between the base sheet 200 and the metal layer 400, and increases the adhesion of the base sheet 200 and the metal layer 400. The primer layer 300 may be acrylic, acrylic urethane, epoxy, polyurethane, polyisocyanate, polyester, acrylate, ethylene-vinyl acetate copolymer, polyamide, melamine, synthetic rubber, or polyvinyl. Alcohol-based resins; The primer layer 300 may be formed on the bottom of the base sheet 200 by using a known method such as a gravure coating method. The lower end of the base sheet 200 layer means a direction opposite to the ultraviolet curable resin layer 100 based on the base sheet 200.

상기 프라이머층(300)은 상기 수지의 용액 상 점도를 변화시켜 두께를 조절할 수 있으며, 그 두께는 1 ~ 5 μm로 형성되는 것이 바람직하다. 상기 프라이머층(300)의 두께가 1~ 5 μm 범위일 때, 기재시트(200)와 금속층(400)의 부착력을 충분히 증착시킬 수 있으면서도 필름의 두께가 필요 이상으로 두꺼워지지 않는다.The primer layer 300 may adjust the thickness by changing the solution phase viscosity of the resin, the thickness is preferably formed to 1 ~ 5 μm. When the thickness of the primer layer 300 is in the range of 1 to 5 μm, the adhesion of the base sheet 200 and the metal layer 400 can be sufficiently deposited, but the thickness of the film does not become thicker than necessary.

금속층(400)의 형성 단계(S4)Formation step (S4) of the metal layer 400

본 발명의 금속층(400)은 프라이머층(300) 하단에 금속 성분을 증착하여 형성된다. 상기 금속층(400)은 일반적인 진공 열 증착 방법 또는 스퍼터링 방법 등에 의하여 형성될 수 있다. 예컨대, 진공 열 증착 방법의 경우 10-4 ~ 10-6 torr 및 300 ~ 800 ℃에서 진공 증착을 진행할 수 있으며, 스퍼터링 방법의 경우 플라즈마 상태에서 작은 금속 나노 입자로서 분리되어 상기 프라이머층(300) 하단에 상기 금속 나노 입자가 코팅되도록 하여 약 0.70 OD(Optical Density) 두께로 금속 증착을 진행할 수 있으나, 증착 방법이 특별히 제한되는 것은 아니다. 상기 금속은 금, 은, 코발트, 알루미늄, 철, 니켈, 크롬, 구리, 주속, 스테인레스 스틸 등이 될 수 있고, 바람직하게는 알루미늄이나 이에 제한되는 것은 아니다. 당업자는 구현하고자 하는 금속 질감에 따라 적당한 금속을 선택하여 본 발명의 금속층(400)을 형성할 수 있다.The metal layer 400 of the present invention is formed by depositing a metal component on the bottom of the primer layer 300. The metal layer 400 may be formed by a general vacuum thermal deposition method or a sputtering method. For example, in the case of the vacuum thermal evaporation method, vacuum deposition may be performed at 10 -4 to 10 -6 torr and 300 to 800 ° C. The metal nanoparticles may be coated on the metal nanoparticles so that the metal deposition may be performed at a thickness of about 0.70 OD (Optical Density), but the deposition method is not particularly limited. The metal may be gold, silver, cobalt, aluminum, iron, nickel, chromium, copper, circumferential speed, stainless steel, and the like, preferably aluminum, but is not limited thereto. Those skilled in the art can select the appropriate metal according to the metal texture to be implemented to form the metal layer 400 of the present invention.

본 발명의 금속층(400)은 자외선경화성 수지층(100), 기재시트(200) 및 프라이머층(300)을 통하여 외관에서 감지가 된다. 상기 금속층(400)은 본 발명의 필름이 보다 더 금속과 유사한 질감을 구현하고, 금속 색감을 표현하게 한다.The metal layer 400 of the present invention is detected in appearance through the ultraviolet curable resin layer 100, the base sheet 200, and the primer layer 300. The metal layer 400 allows the film of the present invention to implement a texture more similar to that of metal and to express metallic color.

본 발명의 금속층(400)은 100 ~ 1000 nm의 두께로 형성된다. 금속층(400)의 두께가 100 nm 미만인 경우 필름 외부에서 금속성 느낌을 감지하기 어렵고, 금속층(400)의 두께가 1000 nm을 초과하는 경우, 필요 이상으로 비용이 증가하게 된다.The metal layer 400 of the present invention is formed to a thickness of 100 ~ 1000 nm. When the thickness of the metal layer 400 is less than 100 nm, it is difficult to detect the metallic feeling outside the film. When the thickness of the metal layer 400 exceeds 1000 nm, the cost increases more than necessary.

본 발명의 금속층(400)은 단일의 금속 박막층 또는 다층 구조의 금속 박막층일 수 있는데, 금속 박막층이 여러 층 증착된 금속 박막층을 사용하는 것이 단일 금속박막층을 사용하는 것보다 다양한 컬러 및 고휘도의 금속 질감 구현이 가능하다.The metal layer 400 of the present invention may be a single metal thin film layer or a metal thin film layer having a multi-layered structure. The use of the metal thin film layer in which the metal thin film layer is deposited in various layers is more diverse than the use of a single metal thin film layer. Implementation is possible.

접착층의 형성 단계(S5)Formation step of the adhesive layer (S5)

본 발명의 접착층은 본 발명의 금속층(400) 하단에 형성된다. 본 발명의 접착층은 본 발명의 필름을 피착체에 부착시키는데 사용된다. 상기 피착체는 전자제품 등의 플레이트 등이 될 수 있다.The adhesive layer of the present invention is formed at the bottom of the metal layer 400 of the present invention. The adhesive layer of the present invention is used to attach the film of the present invention to an adherend. The adherend may be a plate such as an electronic product.

본 발명의 접착층은 폴리우레탄 혹은 폴리에스테르 등의 접착제를 사용하여 콤마 코팅법으로 5~10㎛ 두께로 도포하여 형성할 수 있고, 불투명층으로 형성함으로써 보다 선명한 입체감을 연출시킬수 있다. 또한 마이크로그라비아 코팅법으로 상기 접착층의 도포도 가능하다. 본 발명에서 상기 접착층을 불투명층으로 형성할 경우에는 상기 접착층을 이루는 접착제 조성물에 안료가 첨가될 수 있다.The adhesive layer of the present invention can be formed by applying a thickness of 5 ~ 10㎛ by a comma coating method using an adhesive such as polyurethane or polyester, and by forming an opaque layer can produce a more sharp three-dimensional effect. It is also possible to apply the adhesive layer by microgravure coating. When the adhesive layer is formed of an opaque layer in the present invention, a pigment may be added to the adhesive composition forming the adhesive layer.

필름film

본 발명의 필름은 표면에 요철이 형성된 자외선경화성 수지층(100); 기재시트(200); 프라이머층(300); 금속층(400);및 접착층이 순서대로 적층된 필름이다. 본 발명의 필름은 인테리어 필름, 장식용 필름 등이다. 본 발명의 필름은 전자제품, 가구, 실내외 인테리어용 내외장재 등의 표면에 부착되어 사용된다. 이로써 본 발명의 필름은 상기 물품들이 마치 금속으로 제작된 것과 같은 느낌을 준다.The film of the present invention, the UV-curable resin layer 100 is formed with irregularities on the surface; Base sheet 200; Primer layer 300; The metal layer 400; and the adhesive layer is a film laminated in order. The film of this invention is an interior film, a decorative film, etc. The film of the present invention is used by being attached to the surface of electronic products, furniture, interior and exterior materials for indoor and outdoor interior. This makes the film of the present invention feel as if the articles were made of metal.

본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예에 한정되는 것이 아니라 서로 다른 다양한 형태로 구형된 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명의 청구항의 범주에 의해 정의될 뿐이다. 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성요소를 지칭한다.Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but are spherical in various forms, only the embodiments are to make the disclosure of the present invention complete, and those skilled in the art to which the present invention pertains It is provided to fully inform the scope of the invention, and is only defined by the scope of the claims of the invention. Like reference numerals refer to like elements throughout.

<실시예 1> <Example 1>

헤이즈도가 6%, 빛투과율 92%이상, 광택도 160%이고 두께가 30 μm인 고투명 PET 시트를 준비하고, 상기 PET 시트를 제1롤에 위치시켰다. 자외선경화성 수지 코팅액으로서 우레탄아크릴레이트 100 중량부에 대하여 2,2'-아조비스이소부티로니트릴(AIBN)이 10 중량부가 포함된, 고형분 70%의 아크릴레이트 수지 조성물을 준비하였다. 상기 제1롤을 표면에 약 0.5 μm의 볼록부들이 형성된 제2롤과 가까이 배치하고, 인접한 위치에 UV 경화 램프를 배치하였다. 상기 제1롤과 제2롤 사이에 상기 자외선경화성 수지 코팅액을 공급함과 동시에 UV램프를 이용하여 1차 경화하였다. 그 후 1차 경화된 상기 자외선 경화성 수지층을 별도의 UV램프로 2차 경화하여 상기 기재시트의 상단에 표면에 요철이 형성된 자외선경화성 수지층을 형성시켰다. 상기 자외선경화성 수지층의 두께는 20 μm였으며, 상기 자외선경화성 수지층의 표면에는 필름의 길이 방향을 따라 오목부가 형성되었다. 이를 충분히 건조한 후 기재시트의 하단에 아크릴계 수지를 이용하여 그라비아 코팅법으로 4 μm 두께의 프라이머층을 형성하였다. 그리고 10-4Torr, 760 ℃에서 진공증착을 이용하여 상기 프라이머층의 하단에 600 μm 의 두께를 가지는 알루미늄 증착층을 형성하였다. 그 후 콤마 코타 공법으로 10 μm 의 두께로 도포하여 알루미늄 증착층의 하단에 폴리에스테르 접착제층을 형성하여 본 발명의 필름을 제조하였다.A high transparency PET sheet having a haze of 6%, a light transmittance of 92% or more, a glossiness of 160%, and a thickness of 30 μm was prepared, and the PET sheet was placed on a first roll. An acrylate resin composition having a solid content of 70% was prepared, containing 10 parts by weight of 2,2'-azobisisobutyronitrile (AIBN) based on 100 parts by weight of urethane acrylate as the ultraviolet curable resin coating liquid. The first roll was placed close to the second roll having convex portions of about 0.5 μm on the surface, and a UV curing lamp was placed in an adjacent position. The UV-curable resin coating solution was supplied between the first roll and the second roll, and at the same time, the UV-cured resin was primarily cured using a UV lamp. Thereafter, the first ultraviolet curable resin layer was second cured with a separate UV lamp to form an ultraviolet curable resin layer having irregularities on the surface of the base sheet. The thickness of the ultraviolet curable resin layer was 20 μm, and recesses were formed on the surface of the ultraviolet curable resin layer along the length direction of the film. After sufficiently drying this, a primer layer having a thickness of 4 μm was formed by gravure coating using an acrylic resin at the bottom of the base sheet. An aluminum deposition layer having a thickness of 600 μm was formed at the bottom of the primer layer by vacuum deposition at 10 −4 Torr and 760 ° C. Then, the film of the present invention was prepared by applying a comma cota method to a thickness of 10 μm to form a polyester adhesive layer on the bottom of the aluminum deposition layer.

상기 필름은 자외선경화성 수지층의 표면에 필름의 길이 방향 뿐 아니라 폭 방향으로도 긴 실금(오목부)들이 형성되어 있으며, 금속층의 색감이 비쳐, 수지 필름임에도 불구하고 마치 스테인레스 스틸 재질인 것 같은 느낌을 주었다.The film has long incontinences (concave portions) formed on the surface of the ultraviolet curable resin layer in the width direction as well as the length direction of the film, and the color of the metal layer is reflected and the feeling of being made of stainless steel despite being a resin film. Gave.

<부호의 설명><Description of the code>

10 제1롤10 first roll

20 제2롤20 2nd roll

30 자외선 경화 램프30 UV Curing Lamp

40 자외선경화성 수지40 UV Curable Resin

100 자외선경화성 수지층100 UV Curable Resin Layer

200 기재시트200 sheet

300 프라이머층300 primer layer

400 금속층400 metal layers

500 접착층500 adhesive layer

본 발명은 금속 외관 효과를 구현하는 인테리어 필름 및 그 제조방법에 대한 것이다. 본 발명의 방법으로 제조된 필름은 표면에 미세하면서도 부드러운 라인들이 형성되어, 마치 금속으로 이루어진 것과 같은 인상을 주게 된다. 또한 본 발명의 방법으로 필름을 제조하면, 필름의 표면에 가로 라인을 형성할 수 있다.The present invention relates to an interior film and a method of manufacturing the same for implementing the metallic appearance effect. The film produced by the method of the present invention is fine and smooth lines are formed on the surface, giving an impression as if made of a metal. Moreover, when a film is manufactured by the method of this invention, a horizontal line can be formed in the surface of a film.

Claims (15)

기재시트를 준비하는 단계;Preparing a base sheet; 상기 기재시트의 상단에 표면에 요철이 형성된 자외선경화성 수지층을 형성시키는 단계;Forming an ultraviolet curable resin layer having irregularities formed on a surface of the base sheet; 상기 기재시트의 하단에 프라이머층을 형성시키는 단계;및Forming a primer layer on the bottom of the base sheet; and 상기 프라이머층의 하단에 금속층을 형성시키는 단계를 포함하는 필름의 제조 방법.Method of producing a film comprising the step of forming a metal layer on the lower end of the primer layer. 제 1항에 있어서,The method of claim 1, 상기 기재시트의 두께는 20 ~ 50 μm인 것을 특징으로 하는 제조 방법.The thickness of the base sheet is a manufacturing method, characterized in that 20 ~ 50 μm. 제 1항에 있어서,The method of claim 1, 상기 기재시트는 폴리에스테르계 수지, 아크릴계 수지, 우레탄계 수지 또는 올레핀계 수지를 포함하는 것을 특징으로 하는 방법.The base sheet is characterized in that it comprises a polyester resin, acrylic resin, urethane resin or olefin resin. 제 1항에 있어서,The method of claim 1, 상기 자외선경화성 수지층의 두께는 10 ~ 30 μm인 것을 특징으로 하는 제조 방법.The UV curable resin layer has a thickness of 10 to 30 μm manufacturing method. 제 1항에 있어서,The method of claim 1, 상기 자외선경화성 수지층은 탄소수 1~12의 알킬기를 가지는 아크릴레이트 또는 우레탄아크릴레이트를 이용하여 형성되는 것을 특징으로 하는 제조 방법.The ultraviolet curable resin layer is formed using an acrylate or urethane acrylate having an alkyl group having 1 to 12 carbon atoms. 제 1항에 있어서,The method of claim 1, 상기 자외선경화성 수지층의 요철은 기재시트의 반대 방향에 있는 것을 특징으로 하는 제조 방법.The unevenness of the ultraviolet curable resin layer is in a direction opposite to the base sheet. 제 1항에 있어서,The method of claim 1, 상기 금속층의 하단에 접착층을 형성시키는 단계를 추가로 포함하는 것을 특징으로 하는 제조 방법.Forming an adhesive layer on the bottom of the metal layer further comprising the manufacturing method. 제 1항에 있어서,The method of claim 1, 상기 자외선경화성 수지층의 표면에는 하기 식 1을 만족시키는 오목부가 포함되는 것을 특징으로 하는 제조 방법:The manufacturing method characterized in that the concave portion that satisfies the following formula 1 is included on the surface of the ultraviolet curable resin layer: <식 1> <Equation 1> a > ba> b a: 오목부의 긴 방향(l)의 상기 필름의 길이 방향에 대한 각도a: angle with respect to the longitudinal direction of the said film of the longitudinal direction l of a recessed part b: 오목부의 긴 방향(l)의 상기 필름의 폭 방향에 대한 각도.b: Angle with respect to the width direction of the said film of the longitudinal direction l of a recessed part. 제 1항에 있어서,The method of claim 1, 상기 자외선경화성 수지층의 형성 단계는,Forming the UV-curable resin layer, 상기 기재시트가 표면에 위치하는 제1롤을 준비하는 단계;Preparing a first roll having the base sheet positioned on a surface thereof; 상기 제1롤을 표면에 요철이 형성된 제2롤과 접하지 않는 위치에 배치하고, 인접한 위치에 경화 램프를 배치하는 단계;Disposing the first roll in a position not in contact with the second roll having irregularities formed on a surface thereof, and disposing a curing lamp in an adjacent position; 상기 제1롤 및 상기 제2롤의 사이에 자외선경화성 수지를 공급하고, 상기 제1롤 및 제2롤 중 하나 이상이 회전하면서, 상기 자외선경화성 수지에 제2롤의 요철을 전사시키는 단계를 포함하는 것을 특징으로 하는 제조 방법.Supplying an ultraviolet curable resin between the first roll and the second roll, and transferring at least one of the first roll and the second roll to the ultraviolet curable resin while the at least one of the first roll and the second roll is rotated. The manufacturing method characterized by the above-mentioned. 제 9항에 있어서,The method of claim 9, 상기 제1롤의 표면 전체 또는 일부에 기재시트가 위치하는 것을 특징으로 하는 제조 방법.The manufacturing method, characterized in that the base sheet is located on the entire surface or part of the first roll. 제 9항에 있어서,The method of claim 9, 상기 제1롤 또는 제2롤을 기준으로 상기 자외선경화성 수지가 공급되는 방향과 반대 방향에 상기 상기 경화 램프를 배치하는 것을 특징으로 하는 제조 방법.And the curing lamp is disposed in a direction opposite to a direction in which the ultraviolet curable resin is supplied based on the first roll or the second roll. 제 9항에 있어서,The method of claim 9, 상기 자외선경화성 수지에 제2롤의 요철이 전사되는 것과 동시에 기재시트의 상단에 자외선경화성 수지층이 형성되는 것을 특징으로 하는 제조 방법.The unevenness of the second roll is transferred to the ultraviolet curable resin and the ultraviolet curable resin layer is formed on the upper end of the base sheet. 제 9항에 있어서,The method of claim 9, 상기 제2롤의 요철의 볼록부의 높이는 0.3 ~ 0.7 μm인 것을 특징으로 하는 제조 방법.The height of the convex part of the unevenness | corrugation of the said 2nd roll is 0.3-0.7 micrometers, The manufacturing method characterized by the above-mentioned. 제 8항에 있어서,The method of claim 8, 상기 제2롤의 표면은 볼록부의 면적이 오목부의 면적보다 좁은 것을 특징으로 하는 제조 방법.The surface of said 2nd roll is a manufacturing method characterized by the area of a convex part being narrower than the area of a recessed part. 표면에 요철이 형성된 자외선경화성 수지층;An ultraviolet curable resin layer having irregularities formed on a surface thereof; 기재시트;Base sheet; 프라이머층;Primer layer; 금속층;및Metal layer; and 접착층이 순서대로 적층된 필름.Film in which the adhesive layer is laminated in order.
PCT/KR2013/006767 2012-12-10 2013-07-29 Interior film for metallic exterior effect, and method for manufacturing same Ceased WO2014092282A1 (en)

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JP2003145673A (en) * 2001-11-13 2003-05-20 Katani Sangyo Kk Metallic-tone decorative laminate sheet
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