KR102225155B1 - Structure and treating method of decoration on the composite-layered sheet - Google Patents

Structure and treating method of decoration on the composite-layered sheet Download PDF

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KR102225155B1
KR102225155B1 KR1020200032539A KR20200032539A KR102225155B1 KR 102225155 B1 KR102225155 B1 KR 102225155B1 KR 1020200032539 A KR1020200032539 A KR 1020200032539A KR 20200032539 A KR20200032539 A KR 20200032539A KR 102225155 B1 KR102225155 B1 KR 102225155B1
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composite sheet
decoration
sheet
layer
thickness
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KR1020200032539A
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Korean (ko)
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황종수
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황종수
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    • 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
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin 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
    • B32B27/36—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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/10—Homopolymers or copolymers of methacrylic acid esters
    • C08L33/12—Homopolymers or copolymers of methyl methacrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • 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

Abstract

The present invention relates to a decoration structure of a so-called composite sheet and a processing method thereof. The structure comprises: a PMMA/PC composite sheet made of PC as a main material and manufactured by co-extrusion at high temperature to form a PMMA layer on the surface of the PC layer; and a PC single sheet having a thickness that does not exceed the thickness of the composite sheet, and decorated on one side or both sides, wherein the PC layer of the composite sheet and the single sheet are laminated by an adhesive. According to the present invention, there is an effect that economic efficiency, workability, productivity are improved, and various decoration processing is possible compared to the prior art.

Description

복합시트의 데코레이션 구조 및 처리방법 {Structure and treating method of decoration on the composite-layered sheet}Structure and treating method of decoration on the composite-layered sheet}

본 발명은 복합시트의 데코레이션에 관한 것으로, 특히 IT 기기의 커버로 사용되는 PMMA/PC 복합시트에 최적 적용되는 데코레이션 구조 및 그 처리방법에 관한 것이다.The present invention relates to the decoration of a composite sheet, and in particular, to a decoration structure optimally applied to the PMMA/PC composite sheet used as a cover of an IT device, and a processing method thereof.

일반적으로 스마트폰이나 태블릿 PC 등 휴대용 정보통신 기기의 표시장치로 구비되는 액정 디스플레이 기타 전자 부품들은 기기를 떨어뜨리거나 하는 등의 충격에 의하여 손상 및 파손되기 쉽다. 이에 따라 기기의 배면에는 보호용 및 마감용 패널이 백-커버(back-cover)로 제공되고 있으며, 대체로 이를 통하여 특정 로고나 문자, 기호, 패턴 등 다양한 데코레이션(decoration)이 장식된다.In general, liquid crystal displays and other electronic components provided as display devices of portable information communication devices such as smart phones or tablet PCs are easily damaged and damaged by impact such as dropping the device. Accordingly, protective and finishing panels are provided as a back-cover on the back of the device, and various decorations such as specific logos, characters, symbols, and patterns are usually decorated through this.

형태 면에서 보면, 기기의 입체감 및 그립감을 좋게 하기 위하여 평면 패널의 가장자리를 곡형으로 처리한 형태의 소위 3D 패널이 상기 백-커버로 주로 적용되고 있다.In terms of shape, a so-called 3D panel in which the edge of a flat panel is treated in a curved shape in order to improve the three-dimensional effect and grip of the device is mainly applied as the back cover.

초기 스마트폰에 사용된 백-커버 패널은 주로 PC 수지를 사용한 플라스틱 사출 패널이었으며 이는 가격이 저렴하고 제작이 간편한 장점이 있으나, 그 성질상 스크래치가 발생하기 쉽고 열에 취약한 문제들이 있다. 이후 알루미늄이나 마그네슘 등 금속 패널도 있었으나 이는 가격이 비싸고 무거운 한편 무선통신 성능의 구현에 방해되어 적용상 어려움이 있었으며, 최근의 글라스(glass) 패널은 디자인이 화려하고 고급스러운 장점이 있지만 가공이 어렵고 단가가 높아 생산성이 떨어지는 문제가 있다.The back-cover panels used in early smartphones were mainly plastic injection panels using PC resin, and this has the advantage of being inexpensive and easy to manufacture, but due to its nature, there are problems that are susceptible to scratches and vulnerable to heat. Since then, there have been metal panels such as aluminum and magnesium, but these are expensive and heavy, but they are difficult to apply because they interfere with the implementation of wireless communication performance. There is a problem that productivity is lowered due to the high level.

이에 대체 제안된 것이 2 이상의 플라스틱 시트를 적층한 구조의 소위 '복합시트'이며, 그 중에서 특히 PMMA/PC 복합시트이다. 이 복합시트는 기술적으로 PMMA의 고경도 및 PC의 내충격성을 복합적으로 추구한다.Accordingly, the proposed alternative is a so-called'composite sheet' in which two or more plastic sheets are laminated, and among them, a PMMA/PC composite sheet. This composite sheet technically pursues the high hardness of PMMA and the impact resistance of PC in combination.

도 1은 상기 복합시트(2)를 기반으로 한 통상의 스마트폰용 백-커버(1)를 나타낸다. 상기 복합시트(2)는 PC를 주재료로 하되 PC 층(3) 표면에 PMMA 층(4)이 형성되도록 고온에서 공압출로 제조된다. 상기 복합시트(2)는 '백-커버' 용도에 적합한 강도를 확보하기 위하여 두께(T) 0.6 ~ 0.8mm 정도의 비교적 두꺼운 원단이 사용되며, PC 층(3)의 외측 표면에 소정의 데코레이션(5)이 형성된다. 옵셋 인쇄등 접착에 어려움이 있는 데코레이션이 필요한 경우, 일반적으로는 1000×2000(mm) 정도로 큰 복합 원단시트를 준비하여 그 PC 층(3) 표면에 프라이머(primer) 코팅을 한 다음, 그 원단 시트를 적정 500×400(mm) 정도의 크기로 재단한 후, 그 재단된 시트 상에 상기 데코레이션(5) 처리를 진행한다.Figure 1 shows a conventional smartphone back cover (1) based on the composite sheet (2). The composite sheet 2 is made of PC as a main material, but is manufactured by coextrusion at high temperature so that the PMMA layer 4 is formed on the surface of the PC layer 3. The composite sheet 2 is made of a relatively thick fabric with a thickness (T) of about 0.6 to 0.8 mm in order to secure the strength suitable for the use of the'back-cover', and a predetermined decoration ( 5) is formed. In case of need for decoration that has difficulty in adhesion such as offset printing, prepare a composite fabric sheet that is generally about 1000×2000 (mm), coat the PC layer (3) with a primer, and then coat the fabric sheet. After cutting to an appropriate size of about 500 × 400 (mm), the decoration (5) is processed on the cut sheet.

이러한 방식의 데코레이션 구조가 소위 복합시트(2)를 이용하는 한 당연하게 여겨져 왔지만 PMMA 층(4)을 포함하는 원단의 제조가 쉽지 않을 뿐 아니라 소위 '백-커버' 용도로서 상당한 두께(T)가 요구됨에 따라: 우선 시중에서 같은 두께의 단일 PC 시트 또는 PMMA 시트 대비 상당히 높은 가격이 형성되어 있다는 단순 재료비 문제 외에;This type of decoration structure has been taken for granted as long as the so-called composite sheet (2) is used, but it is not easy to manufacture a fabric including the PMMA layer (4), and a considerable thickness (T) is required as a so-called'back-cover' use. According to: First of all, in addition to the simple material cost problem that the price is considerably higher than a single PC sheet or PMMA sheet of the same thickness on the market;

- 복합시트의 두께(T)가 두꺼우므로, 상기 프라이머 처리시 소위 롤-코팅(Roll-coating) 방식을 적용하지 못하고 원단 시트 상에 낱장으로 처리해야 하므로 가격이 상승하고 양산이 매우 어렵고 수율이 떨어지며,-Since the thickness (T) of the composite sheet is thick, the so-called roll-coating method cannot be applied during the primer treatment, and it has to be processed as a single sheet on the fabric sheet, so the price increases, mass production is very difficult, and the yield decreases. ,

- 복합시트의 두께(T)가 두꺼우므로, UV 패턴, 증착, 인쇄 등 단계별 데코레이션(5) 진행시 원단의 취급이 어려워 수율 및 작업성이 현저히 떨어지며,-Since the thickness (T) of the composite sheet is thick, it is difficult to handle the fabric during step-by-step decoration (5) such as UV pattern, deposition, and printing, so the yield and workability are significantly reduced.

- 상기 재단시 경질 PMMA 층(4) 부분이 갈리거나 깨지면서 발생한 이물질이 후 데코레이션 공정 및 장치, 예컨대 옵셋 인쇄 및 장치 등에 개입하여 지속적으로 불량품 생산을 야기하는,-Foreign matter generated when the hard PMMA layer 4 part is shredded or cracked during the cutting intervenes in the post-decoration process and equipment, such as offset printing and equipment, causing continuous production of defective products,

등 공정상의 문제들이 있으며;Etc. There are process problems;

- 이 과정에서 하나라도 문제가 발생하면, 고가의 원단이 함께 소모·폐기 처분되어야 한다.-If any problem occurs during this process, expensive fabrics must be consumed and disposed of together.

<선행기술문헌><prior technical literature>

공개특허공보 제2004-0019204호Unexamined Patent Publication No. 2004-0019204

공개특허공보 제2010-0038844호Unexamined Patent Publication No. 2010-0038844

공개특허공보 제2016-0081831호Unexamined Patent Publication No. 2016-0081831

등록특허공보 제1609129호Registered Patent Publication No. 1609129

본 발명은 상기한 종래 복합시트 관련 데코레이션 구조 및 처리 기술의 문제점을 해결하고자 제안된 것이다. 본 발명의 목적은, 상기한 종래 기술에 비해 경제성, 작업성, 생산성이 개선되고 다양한 처리가 가능한 '복합시트의 데코레이션 구조 및 처리방법'을 제공하고자 하는 것이다. 본 발명의 위 목적은, 별도로 저가의 단일시트를 구비하여 사전에 데코레이션을 처리한 후 이 시트를 복합시트에 접합시키는 방법으로 달성될 수 있다.The present invention is proposed to solve the problems of the conventional composite sheet-related decoration structure and processing technology. It is an object of the present invention to provide a'decoration structure and processing method of a composite sheet' which improves economic efficiency, workability, and productivity compared to the above-described prior art, and enables various processing. The above object of the present invention can be achieved by a method of bonding the sheet to a composite sheet after processing the decoration in advance by separately providing a low-cost single sheet.

본 발명의 데코레이션 구조는:The decoration structure of the present invention is:

PC를 주재료로 하되 PC 층 표면에 PMMA 층이 형성되도록 고온에서 공압출로 제조된 PMMA/PC 복합시트와;A PMMA/PC composite sheet made of PC as a main material but produced by coextrusion at high temperature so that a PMMA layer is formed on the surface of the PC layer;

상기 복합시트의 두께를 초과하지 않는 두께를 가지며, 일면 또는 양면에 데코레이션이 처리된 PC 단일시트;PC single sheet having a thickness not exceeding the thickness of the composite sheet and decorated with one or both sides;

를 포함하며,Including,

상기 복합시트의 PC 층과 상기 단일시트가 접착제에 의하여 합지됨으로써 이루어지는 것;Made by laminating the PC layer and the single sheet of the composite sheet with an adhesive;

을 특징으로 한다.It features.

상기 단일시트는 두께 0.05 ~ 0.4mm인 것이며, 상기 데코레이션은 반투명 인쇄, UV 패턴, 증착(NCVM) 또는 차폐 인쇄를 포함할 수 있다. The single sheet has a thickness of 0.05 ~ 0.4mm, and the decoration may include translucent printing, UV pattern, deposition (NCVM), or shielding printing.

바람직하게, 상기 복합시트의 PMMA 층에는 하드(hard) 코팅층이 형성된다.Preferably, a hard coating layer is formed on the PMMA layer of the composite sheet.

본 발명의 데코레이션 처리방법은:The decoration processing method of the present invention:

상기 데코레이션 구조를 처리하는 방법으로:How to handle the above decoration structure:

PC를 주재료로 하되 PC 층 표면에 PMMA 층이 형성되도록 고온에서 공압출로 제조된 PMMA/PC 복합시트를 준비하는 준비단계;Preparing a PMMA/PC composite sheet manufactured by coextrusion at high temperature so that the PC is used as the main material, but the PMMA layer is formed on the surface of the PC layer;

상기 복합시트의 두께를 초과하지 않는 두께의 PC 단일시트를 준비하여, 그 일면 또는 양면에 데코레이션을 처리를 하는 처리단계;A processing step of preparing a single PC sheet having a thickness that does not exceed the thickness of the composite sheet, and treating one or both sides of the PC single sheet;

상기 복합시트의 PC 층과 제2단계의 단일시트가 접착제에 의하여 합지되도록 하는 합지단계;A laminating step of laminating the PC layer of the composite sheet and the single sheet of the second step by means of an adhesive;

를 포함하여 이루어진다.It is made including.

바람직하게, 상기 처리방법은:Preferably, the treatment method is:

상기 합지단계 전 또는 후에 상기 복합시트의 PMMA 층에 하드 코팅층을 형성하는 코팅단계;A coating step of forming a hard coating layer on the PMMA layer of the composite sheet before or after the laminating step;

를 더 포함한다.It further includes.

본 발명의 복합시트 데코레이션 구조에 따르면, 종래 백-커버용 복합시트의 두께 일부를 상대적으로 연질·저가의 PC 단일시트가 대체하며, 이때의 단일시트를 이용하여 데코레이션이 사전 처리된다. 따라서 단지 두꺼운 고가 복합시트를 그대로 이용하는 종래의 구조에 비해 재료비가 절감되는 것 외에;According to the composite sheet decoration structure of the present invention, a relatively soft and inexpensive PC single sheet replaces part of the thickness of the conventional back-cover composite sheet, and the decoration is pre-processed using the single sheet at this time. Therefore, in addition to the material cost reduction compared to the conventional structure using only the thick expensive composite sheet as it is;

- 상기 데코레이션을 위한 프라이머 처리시 롤-코팅 방식을 적용할 수 있으므로 작업성 및 양산성이 향상되고,-When the primer for the decoration is treated, the roll-coating method can be applied, so workability and mass production are improved,

- UV 패턴·증착·인쇄 등 단계별 데코레이션을 진행함에 있어 시트 원단의 취급이 용이하여 수율 및 작업성이 개선되며,-When performing stage decoration such as UV pattern, deposition, printing, etc., it is easy to handle sheet fabric, improving yield and workability.

- 시트 원단의 재단시에도 경질 PMMA 층이 재단되는 경우와 같은 이물질이 발생하지 않으므로 작업 불량률이 낮아지는,-Even when the sheet fabric is cut, foreign substances such as when the hard PMMA layer is cut does not occur, so the work defect rate is lowered.

등의 공정상 효과가 있으며; Etc. are effective in the process;

- 만약 공정의 대부분을 차지하는 데코레이션 과정에서 문제가 생기면 저가 시트의 일부만 소모되므로, 이 점에서도 상당히 유리한 효과가 있다.-If there is a problem in the decoration process, which occupies most of the process, only a part of the low-cost sheet is consumed, so there is a very advantageous effect in this regard as well.

도 1은 종래 스마트폰용 백-커버 구조를 나타낸 도면.
도 2는 본 발명에 따른 복합시트의 데코레이션 구조를 설명하는 도면.
도 3은 도 2의 확대 단면도.
도 4는 도 2의 데코레이션 구조를 처리하는 방법을 나타낸 순서도.1 is a view showing a conventional smart phone back-cover structure.
Figure 2 is a view for explaining the decoration structure of the composite sheet according to the present invention.
Figure 3 is an enlarged cross-sectional view of Figure 2;
Figure 4 is a flow chart showing a method of processing the decoration structure of Figure 2;

이상 기재된 또는 기재되지 않은 본 발명 '복합시트의 데코레이션 구조 및 처리방법'의 특징과 작용효과들은, 이하에서 첨부도면을 참조하여 설명하는 실시예 기재를 통하여 더욱 명백해질 것이다. 도면에서 부호 10은 본 발명에 따른 복합시트의 데코레이션 구조를 나타낸다.Features and effects of the present invention'decoration structure and treatment method of a composite sheet' described or not described above will become more apparent through the description of the embodiments described below with reference to the accompanying drawings. In the drawings, reference numeral 10 denotes a decoration structure of the composite sheet according to the present invention.

도 2 및 도 3을 참조하면, 본 발명의 데코레이션 구조(10)는 예컨대 스마트폰용 백-커버로 이용되는 구조로서, 복합시트(11)와 단일시트(14), 양 시트(11,14)를 접합시키는 접착제(16)를 포함하여 이루어진다. 구체적으로, 상기 복합시트(11)는 PC를 주재료로 하되 PC 층(12) 표면에 PMMA 층(13)이 형성되도록 고온에서 공압출로 제조된 PMMA/PC(Polymethyl methacrylate/Ploycarbonate) 복합시트이며, 상기 단일시트(14)는 상기 복합시트(11) 및 다른 수지 시트에 비해 상대적으로 연질·저가 재료이며 가공성·인쇄성이 우수한 PC(Ploycarbonate) 보급형 시트이다.2 and 3, the decoration structure 10 of the present invention is a structure used as a back-cover for a smartphone, for example, a composite sheet 11 and a single sheet 14, and both sheets 11 and 14 It comprises an adhesive (16) to bond. Specifically, the composite sheet 11 is a PMMA/PC (Polymethyl methacrylate/Ploycarbonate) composite sheet manufactured by coextrusion at a high temperature so that the PC as a main material but the PMMA layer 13 is formed on the surface of the PC layer 12, The single sheet 14 is a relatively soft and inexpensive material compared to the composite sheet 11 and other resin sheets, and is a PC (Ploycarbonate) popular type sheet having excellent processability and printability.

상기 단일시트(14)는 그 일면 또는 양면이 데코레이션(15) 처리되어 제공되며, 상기 복합시트(11)의 PC 층(12)과 상기 단일시트(14)가 접착제(16)에 의하여 합지됨으로써 복합시트의 데코레이션 구조(10)를 구성한다. 상기 데코레이션(15)은 반투명 인쇄, UV 패턴, 증착(NCVM) 또는 차폐 인쇄 등을 포함할 수 있다. 또한, 그 중 일부 한정된 작업은 상기 복합시트(11)의 PC 층(12)에서 이루어질 수도 있을 것이나, 본 발명에서 그 점은 고려하지 않는다.The single sheet 14 is provided by processing one or both sides of the decoration 15, and the PC layer 12 of the composite sheet 11 and the single sheet 14 are laminated by an adhesive 16 It constitutes the decoration structure 10 of the sheet. The decoration 15 may include translucent printing, UV pattern, vapor deposition (NCVM), or shielding printing. In addition, some of the limited operations may be performed on the PC layer 12 of the composite sheet 11, but that point is not considered in the present invention.

상기 단일시트(14)는 복합시트(11)의 두께(t1)를 초과하지 않는 두께(t2)로 구성된 것이며, 바람직하게 상기 단일시트(14)의 두께(t2)는 0.05 ~ 0.4mm이다. 이는 사전 프라이머 코팅시 또는 상기 데코레이션(15) 처리시 일부 공정에서 '롤-코팅'(roll-to-roll) 방식을 무난하게 적용할 수 있는 재료 두께이며, 한편으로는 이로써 소정의 '백-커버'에서는 그 두께(t2)만큼 얇아진 복합시트(11)를 사용할 수 있게 되는 것이다. 예컨대, 백-커버에 요구되는 두께가 0.64mm인 경우 t1=0.5mm 복합시트와 t2=0.125mm 단일시트를 사용할 수 있으며, 요구되는 두께가 0.8mm 이상인 경우 소정 두께의 복합시트와 t2=0.38mm 단일시트를 사용할 수 있다.The single sheet 14 is composed of a thickness t2 that does not exceed the thickness t1 of the composite sheet 11, and the thickness t2 of the single sheet 14 is preferably 0.05 to 0.4mm. This is a material thickness that allows a'roll-to-roll' method to be safely applied in some processes during pre-primer coating or processing of the decoration 15, and on the one hand, a predetermined'back-cover' In', it is possible to use the composite sheet 11 thinner by the thickness t2. For example, if the thickness required for the back cover is 0.64mm, a t1=0.5mm composite sheet and a t2=0.125mm single sheet can be used.If the required thickness is 0.8mm or more, a composite sheet of a predetermined thickness and t2=0.38mm You can use a single sheet.

이와 같이 백-커버로서 요구되는 전체 두께의 일부를 저가의 PC 단일시트(14)로 대체함으로써, 전체가 복합시트로만 구성되는 백-커버 경우에 비하여, 제작의 경제성 및 상기 데코레이션(15) 처리의 효율성을 동시에 만족시킬 수 있게 된다. 즉, 상기 단일시트(14)는 복합시트(11)와는 별도로 구비되어 그 일면 또는 양면에 데코레이션(15)이 처리되며, 접착제(16)에 의하여 상기 복합시트(11)의 PC 층(12)에 접합되는 것이다.In this way, by replacing part of the total thickness required as a back-cover with a low-cost PC single sheet 14, compared to the case of a back-cover composed entirely of a composite sheet, the economical efficiency of manufacturing and the decoration 15 processing Efficiency can be satisfied at the same time. That is, the single sheet 14 is provided separately from the composite sheet 11 so that the decoration 15 is treated on one or both sides thereof, and the PC layer 12 of the composite sheet 11 is applied by an adhesive 16. It is joined.

필요에 따라, 상기 복합시트(11)의 PMMA 층(13)에는 내구성을 위하여 하드 코팅층(17)이 형성될 수 있다. If necessary, a hard coating layer 17 may be formed on the PMMA layer 13 of the composite sheet 11 for durability.

도 4는 이상과 같은 데코레이션 구조(10)를 처리 및 형성하는 방법을 나타낸다. 다만, 본 발명이 그 순서에 한정되는 것은 아니다.4 shows a method of processing and forming the decoration structure 10 as described above. However, the present invention is not limited to the order.

[준비단계][Preparation stage]

이 단계는 PMMA/PC 복합시트(11)를 준비하는 단계로서, 상기 복합시트(11)는 PC를 주재료로 하되 PC 층 표면에 PMMA 층이 형성되도록 고온에서 공압출로 제조된 시트이다. 이때 복합시트(11)의 두께(t1)는 스마트폰 등에 실제 요구되는 백-커버의 두께, 복합시트(11)에 부착될 단일시트(14)의 두께(t2) 및 상기 데코레이션(15)과 접착제(16) 등을 모두 고려하여 적정 선택되어야 할 것이다.This step is a step of preparing the PMMA/PC composite sheet 11, wherein the composite sheet 11 is made of PC as a main material, but is a sheet manufactured by coextrusion at high temperature so that a PMMA layer is formed on the surface of the PC layer. At this time, the thickness (t1) of the composite sheet 11 is the thickness of the back-cover actually required for a smartphone, etc., the thickness t2 of the single sheet 14 to be attached to the composite sheet 11, and the decoration 15 and the adhesive (16) It should be selected appropriately in consideration of all of these.

[처리단계][Processing stage]

이 단계는 상기 복합시트(11)와는 별개로 상대적으로 연질 재료이고 또한 저가인 PC 단일시트(14)를 준비하여, 그 일면 또는 양면에 데코레이션(15) 처리를 하는 단계이다. 예컨대 그라데이션(gradation) 반투명 인쇄는 PC 단일시트(14)에 형성될 수 있다. 물론 그 데코레이션(15) 처리 전 롤-코팅 방식에 의한 프라이머 공정이 인쇄의 접착력을 높이기 위하여 진행될 수 있으므로 상기 단일시트(14)의 두께(t2)는 이 방식에 적합한 두께이어야 할 것이다.In this step, apart from the composite sheet 11, a relatively soft material and inexpensive PC single sheet 14 is prepared, and decoration 15 is processed on one or both sides thereof. For example, gradation translucent printing may be formed on the PC single sheet 14. Of course, before the decoration 15 treatment, a primer process by a roll-coating method may be performed to increase the adhesion of printing, so the thickness t2 of the single sheet 14 should be a thickness suitable for this method.

실제로, 프라이머 공정 후에 상기 단일시트(14)는 적정 크기로 재단될 것이다. 그러나 이 재단에 의하여, 상기 경질 PMMA 층(13)이 재단되는 경우와 같은, 가루나 이물질이 발생하지는 않는다.In fact, after the primer process, the single sheet 14 will be cut to an appropriate size. However, by this cutting, powder or foreign matter does not occur as in the case where the hard PMMA layer 13 is cut.

상기 데코레이션(15)은 반투명 인쇄, UV 패턴, 증착(NCVM) 또는 차폐 인쇄 등을 포함할 수 있으며, 바람직하게 이들은 2 이상이 단계별로 진행될 것이다. 또한, 일부 공정 예컨대 인쇄 공정에서는 상기 롤-코팅 방식이 적용될 수도 있다. 한편, 상기 단일시트(14)의 두께(t2) 조건에 관하여는 앞에서 상세하게 설명하였다.The decorations 15 may include translucent printing, UV pattern, vapor deposition (NCVM), shielding printing, and the like, preferably two or more of these will be performed in stages. In addition, in some processes, such as a printing process, the roll-coating method may be applied. Meanwhile, the condition of the thickness t2 of the single sheet 14 has been described in detail above.

[합지단계][Lamination step]

이 단계는 상기 복합시트(11)의 PC 층(12)과 제2단계의 단일시트(14)가 접착제(16)에 의하여 합지되도록 하는 단계이다. 상기 접착제(16)는 그 종류에 한정되지 않으나, 투명한 것이다.In this step, the PC layer 12 of the composite sheet 11 and the single sheet 14 of the second step are laminated by an adhesive 16. The adhesive 16 is not limited to the type, but is transparent.

[코팅단계][Coating step]

이 단계는 상기 복합시트(11)의 PMMA 층(13)에 하드 코팅층(17)을 더 형성하는 단계이다. 이 코팅층(17)은 일반적으로 플라스틱 또는 다른 재료의 표면 내구성 및 내스크래치성을 위하여 부가되는 통상의 코팅 재료와 방식으로 형성될 수 있다. 이 단계는 상기 합지단계의 전 또는 후 관계없이 진행될 수 있다.This step is a step of further forming a hard coating layer 17 on the PMMA layer 13 of the composite sheet 11. This coating layer 17 can be formed in the manner of a conventional coating material, which is generally added for surface durability and scratch resistance of plastics or other materials. This step can be performed regardless of before or after the laminating step.

이상의 단계를 거쳐, 상기한 데코레이션 구조(10)를 얻을 수 있다.Through the above steps, the above-described decoration structure 10 can be obtained.

10. 데코레이션 구조
11. 복합시트
12. PC 층
13. PMMA 층
14. 단일시트
15. 데코레이션
16. 접착제
17. 코팅층
t1,t2. 두께 10. Decoration structure
11. Composite sheet
12. PC layer
13. PMMA layer
14. Single sheet
15. Decoration
16. Adhesive
17. Coating layer
t1,t2. thickness

Claims (11)

PC를 주재료로 하되 PC 층(12) 표면에 PMMA 층(13)이 형성되도록 고온에서 공압출로 제조된 PMMA/PC(Polymethyl methacrylate/Ploycarbonate)
복합시트(11)와;
상기 복합시트(11)의 두께(t1)를 초과하지 않는 두께(t2)를 가지며, 일면 또는 양면에 데코레이션(15)이 처리된 PC(Ploycarbonate)
단일시트(14);
를 포함하며,
상기 복합시트(11)의 PC 층(12)과 상기 단일시트(14)가 접착제(16)에 의하여 합지됨으로써 이루어지는 것;
을 특징으로 하는 복합시트의 데코레이션 구조.
PMMA/PC (Polymethyl methacrylate/Ploycarbonate) manufactured by coextrusion at high temperature to form a PMMA layer 13 on the surface of the PC layer 12 with PC as the main material
A composite sheet 11;
PC (Ploycarbonate) having a thickness (t2) that does not exceed the thickness (t1) of the composite sheet 11 and treated with decorations 15 on one or both sides
Single sheet 14;
Including,
Made by laminating the PC layer 12 of the composite sheet 11 and the single sheet 14 by an adhesive 16;
The decoration structure of the composite sheet, characterized in that.
 삭제delete 제1항에 있어서,
상기 단일시트(14)는 두께(t2)가 0.05 ~ 0.4mm인 것을 특징으로 하는 복합시트의 데코레이션 구조.
The method of claim 1,
The single sheet 14 is a decoration structure of a composite sheet, characterized in that the thickness (t2) is 0.05 ~ 0.4mm.
 제1항에 있어서,
상기 데코레이션(15)은 반투명 인쇄, UV 패턴, 증착(NCVM) 또는 차폐 인쇄를 포함하는 것을 특징으로 하는 복합시트의 데코레이션 구조.
The method of claim 1,
The decoration 15 is a decoration structure of a composite sheet, characterized in that it includes translucent printing, UV pattern, deposition (NCVM), or shielding printing.
 제1항에 있어서,
상기 데코레이션(15)의 접착을 높이기 위하여 상기 단일시트(14)에 형성된 프라이머 코팅을 포함하는 것을 특징으로 하는 복합시트의 데코레이션 구조.
The method of claim 1,
The decoration structure of the composite sheet, characterized in that it comprises a primer coating formed on the single sheet (14) to increase the adhesion of the decoration (15).
 제1항에 있어서,
상기 복합시트(11)의 PMMA 층(13)에는 하드 코팅층(17)이 형성되는 것을 특징으로 하는 복합시트의 데코레이션 구조.
The method of claim 1,
The decoration structure of the composite sheet, characterized in that a hard coating layer (17) is formed on the PMMA layer (13) of the composite sheet (11).
 제1항의 데코레이션 구조를 처리하는 방법으로:
PC를 주재료로 하되 PC 층(12) 표면에 PMMA 층(13)이 형성되도록 고온에서 공압출로 제조된 PMMA/PC 복합시트(11)를 준비하는 준비단계;
상기 복합시트(11)의 두께(t1)를 초과하지 않는 두께(t2)의 PC 단일시트(14)를 준비하여, 그 단일시트(14)의 일면 또는 양면에 데코레이션(15)을 처리를 하는 처리단계;
상기 복합시트(11) PC 층(12)과 제2단계의 단일시트(14)가 접착제(16)에 의하여 합지되도록 하는 합지단계;
를 포함하는 것을 특징으로 하는 복합시트의 데코레이션 처리방법.
How to handle the decoration structure of clause 1:
Preparing a PMMA/PC composite sheet 11 manufactured by coextrusion at high temperature so that the PC is used as the main material, but the PMMA layer 13 is formed on the surface of the PC layer 12;
Treatment of preparing a PC single sheet 14 with a thickness t2 not exceeding the thickness t1 of the composite sheet 11 and treating the decoration 15 on one or both sides of the single sheet 14 step;
A laminating step of laminating the composite sheet (11) PC layer (12) and the single sheet (14) of the second step by an adhesive (16);
Decoration treatment method of the composite sheet comprising a.
 삭제delete 제7항에 있어서,
상기 합지단계의 전 또는 후에 상기 복합시트(11)의 PMMA 층(13)에 하드 코팅층(17)을 형성하는 코팅단계;
를 더 포함하는 것을 특징으로 하는 복합시트의 데코레이션 처리방법.
The method of claim 7,
A coating step of forming a hard coating layer 17 on the PMMA layer 13 of the composite sheet 11 before or after the laminating step;
Decoration treatment method of the composite sheet, characterized in that it further comprises.
 제7항에 있어서,
상기 처리단계에서, 상기 단일시트(14)의 표면에 데코레이션(15)을 위한 프라이머 처리가 선행되는 것을 특징으로 하는 복합시트의 데코레이션 처리방법.
The method of claim 7,
In the processing step, a primer treatment for the decoration (15) is preceded on the surface of the single sheet (14).
 제10항에 있어서,
상기 프라이머 처리는 롤-코팅 방식에 의한 것을 특징으로 하는 복합시트의 데코레이션 처리방법.
The method of claim 10,
The primer treatment is a decoration treatment method of a composite sheet, characterized in that by a roll-coating method.
KR1020200032539A 2020-03-17 2020-03-17 Structure and treating method of decoration on the composite-layered sheet KR102225155B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112757732A (en) * 2020-12-25 2021-05-07 江苏集萃先进高分子材料研究所有限公司 High-strength and high-toughness multilayer composite board and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090112445A (en) * 2008-04-24 2009-10-28 김용욱 Manufacturing Method of Screen Protection Window
KR20150019204A (en) * 2013-08-13 2015-02-25 김상범 Front window cover for touch screen display device and method for producing the same
KR20150020419A (en) * 2013-08-14 2015-02-26 에스케이씨하스디스플레이필름(유) Cover plastic sheet for touch panel
KR20150034456A (en) * 2013-09-26 2015-04-03 룩씨스 주식회사 Film for protecting LCD surface and method for manufacturing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090112445A (en) * 2008-04-24 2009-10-28 김용욱 Manufacturing Method of Screen Protection Window
KR20150019204A (en) * 2013-08-13 2015-02-25 김상범 Front window cover for touch screen display device and method for producing the same
KR20150020419A (en) * 2013-08-14 2015-02-26 에스케이씨하스디스플레이필름(유) Cover plastic sheet for touch panel
KR20150034456A (en) * 2013-09-26 2015-04-03 룩씨스 주식회사 Film for protecting LCD surface and method for manufacturing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112757732A (en) * 2020-12-25 2021-05-07 江苏集萃先进高分子材料研究所有限公司 High-strength and high-toughness multilayer composite board and preparation method thereof

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