KR100544406B1 - Natural veneer sheet using functional polyurethane film as backing paper and its manufacturing method - Google Patents
Natural veneer sheet using functional polyurethane film as backing paper and its manufacturing method Download PDFInfo
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- KR100544406B1 KR100544406B1 KR1020020057146A KR20020057146A KR100544406B1 KR 100544406 B1 KR100544406 B1 KR 100544406B1 KR 1020020057146 A KR1020020057146 A KR 1020020057146A KR 20020057146 A KR20020057146 A KR 20020057146A KR 100544406 B1 KR100544406 B1 KR 100544406B1
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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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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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
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/06—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
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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
- B32B27/06—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
- B32B27/10—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 paper or cardboard
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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
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0853—Vinylacetate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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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
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/02—Temperature
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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
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/12—Pressure
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Abstract
본 발명은 천연 무늬목 시트 및 그 제조방법에 관한 것으로서, 폴리우레탄 필름을 포함하는 배접지를 사용한 천연 무늬목 시트로, 이는 폴리우레탄 수지로 인한 방수, 방음 및 난연성을 발휘하면서 천연 무늬목 원판에는 유연성을 부여할 수 있게 되어 깨짐이나 시간의 경과에 따른 변형을 방지할 수 있어 그 취급이 용이하며, 가구, 벽지, 바닥재 등과 같은 건축자재 및 인테리어에 유용하게 사용할 수 있다. The present invention relates to a natural veneer sheet and a method of manufacturing the same, a natural veneer sheet using a backing paper containing a polyurethane film, which provides flexibility to the natural veneer disc while exhibiting waterproof, soundproofing and flame retardant due to the polyurethane resin Since it is possible to prevent cracking and deformation over time, its handling is easy, and it can be usefully used for building materials such as furniture, wallpaper, flooring, and interior.
Description
도 1은 본 발명에 따른 천연 무늬목 시트의 단면도이다. 1 is a cross-sectional view of a natural veneer sheet according to the present invention.
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
11 - 천연 무늬목 원판 12 - 종이11-natural veneer disc 12-paper
13 - 폴리우레탄 필름 200 - 폴리우레탄 배접지13-Polyurethane Film 200-Polyurethane Backing
본 발명은 천연 무늬목 시트 및 그 제조방법에 관한 것으로서, 더욱 상세하게는 기능성 폴리우레탄 필름을 배접지로서 사용함으로써 방수, 방음 및 난연 효과가 우수하고 천연 무늬목 원판에 유연성을 부여하여 깨짐이나 수축을 방지할 수 있는 천연 무늬목 시트와 이를 제조하는 방법에 관한 것이다. The present invention relates to a natural veneer sheet and a method of manufacturing the same. More specifically, by using a functional polyurethane film as a backing paper, it is excellent in waterproofing, soundproofing and flame retardant effect and gives flexibility to the natural veneer disc to prevent cracking or shrinkage. It relates to a natural veneer sheet and a method of manufacturing the same.
최근 급격한 도시화 속에서 자연으로의 회귀를 갈망하는 사람들의 욕구에 따 라 원목이나 황토 등과 같은 천연재료에 대한 수요가 증가하고 있다. In recent years, the demand for natural materials such as timber and loess is increasing in response to the desire of people who want to return to nature amid rapid urbanization.
즉, 건축, 인테리어, 가구 분야에서 원목이나 원목 분위기를 재현할 수 있도록 천연 무늬목 등을 많이 사용하고 있다. In other words, in the fields of architecture, interior, furniture, natural wood is used a lot to reproduce the atmosphere of wood or wood.
천연 무늬목 시트의 제조방법으로는, 천연목재를 얇게 슬라이스한 천연 무늬목을 준비하고, 면, 비스코스 레이온, 나일론 등으로 된 부직포를 수지함침시켜 양면으로 고르게 수지가 침투되도록 한 섬유 시이트를 상기 천연무늬목의 이면에 롤러 압착 혹은 열압착으로 눌러붙여 무늬목을 제조하는 방법을 들 수 있다. 이는 가장 보편적인 무늬목의 제조방법이라 할 수 있다. As a method of manufacturing a natural veneer sheet, a natural veneer obtained by thinly slicing natural wood is prepared, and a fiber sheet in which resin is impregnated on both sides by resin-impregnating a nonwoven fabric made of cotton, viscose rayon, nylon, etc. The method of manufacturing a veneer is mentioned by pressing the back surface by roller pressing or thermocompression bonding. This is the most common method of manufacturing veneer.
이와같은 기본 구조에 원목 특유의 문제들을 해결하기 위한 다양한 방법들이 시도되었는데, 그 일예로는 무늬목 부재의 상면에 라미네이팅 필름을 도포하여 보관성이 우수하고 시공기술이 없는 사람도 사용할 수 있으며 시공에 소요되는 시간, 인력, 경비를 절감한 무늬목의 제조방법이 개시되어 있다(국내공개특허 제2001-26300호). Various methods have been tried to solve the problems specific to solid wood in such a basic structure. For example, by applying a laminating film on the upper surface of the veneer member, it can be used by people who have excellent storage and can be used without construction technology. Disclosed is a method of manufacturing veneer with reduced time, manpower, and expenses (Korean Patent Publication No. 2001-26300).
그 외에 배접지로서 알루미늄박을 포함한 배접 무늬목 시트도 있는데, 무늬목 원판에 접착제를 도포하고, 여기에 알루미늄박을 접착시키고 종이 등의 배접지를 접착시킨 것이었다. 그러나, 알루미늄박은 재질이 약하고 뻑뻑하여 시공이 어렵고 그에 따라 인테리어용으로 시공이 용이치 않은 문제점이 있었다. In addition, there is also a backing veneer sheet containing aluminum foil as a backing paper. An adhesive is applied to the original wood veneer, and the aluminum foil is adhered to the backing paper such as paper. However, aluminum foil has a problem in that the construction is difficult because the material is weak and stiff, and therefore the construction is not easy for the interior.
이에, 본 발명자는 무늬목 원판을 이용한 새로운 배접 무늬목을 개발하기 위 해 연구노력하던 중, 특정의 폴리우레탄 시트를 배접지로 사용한 결과 방음, 발수 및 난연 효과가 우수하면서 위생적이고, 또한 천연 무늬목 원판의 깨짐이나 변형을 방지할 수 있는 배접 무늬목 시트를 제조할 수 있음을 알게되어 본 발명을 완성하게 되었다. Therefore, the inventors of the present invention, while trying to develop a new plywood veneer using a veneer disc, as a result of using a specific polyurethane sheet as a backing paper, the soundproofing, water-repellent and flame retardant effect is excellent and hygienic, and also of natural veneer disc It has been found that the present invention can produce a plywood veneer sheet that can prevent cracking or deformation.
따라서, 본 발명의 목적은 기능성 폴리우레탄 배접지를 도입하여 방음, 방수, 불연성을 증대시키고 천연 무늬목에 유연성을 부여하여 취급이 용이해지며 천연 무늬목 표면의 변형을 방지할 수 있는 배접 무늬목 시트를 제공하는 데 있다.Accordingly, an object of the present invention is to introduce a functional polyurethane backing sheet to increase sound insulation, waterproofing, non-combustibility and to give flexibility to the natural veneer, to facilitate handling and to provide a backing veneer sheet that can prevent deformation of the natural veneer surface There is.
또한, 본 발명은 상기와 같은 배접 무늬목 시트를 용이하게 제조하는 방법을 제공하는 데도 그 목적이 있다. In addition, an object of the present invention is to provide a method for easily producing a plywood veneer sheet as described above.
상기와 같은 목적을 달성하기 위한 본 발명의 배접 무늬목 시트는 천연 무늬목 원판, 종이, 폴리우레탄 수지에 안료 0.1∼11중량%, 종이가루 0.5∼30중량%, 숯가루 10∼50중량%, 견운모 분말 10∼50중량%, 용제 10∼50중량%, 실리콘 0.01∼7중량%, 폴리부탄 0.3∼20중량% 및 난연제 0.5∼50중량%로 이루어진 기능성 폴리우레탄 필름 및 종이가 순차적으로 적층된 구조를 갖는 것을 그 특징으로 한다. Bait veneer veneer sheet of the present invention for achieving the above object is a natural veneer disc, paper, polyurethane resin 0.1 to 11% by weight, paper powder 0.5 to 30% by weight, charcoal powder 10 to 50% by weight, mica powder Functional polyurethane film and paper composed of 10 to 50% by weight, 10 to 50% by weight of solvent, 0.01 to 7% by weight of silicone, 0.3 to 20% by weight of polybutane and 0.5 to 50% by weight of flame retardant. It is characterized by that.
이와같은 배접 무늬목 시트를 제조하는 방법은 폴리우레탄에 안료, 종이가루, 숯가루, 견운모 분말, 용제, 실리콘, 폴리부탄 및 난연제를 첨가하여 기능성 폴리우레탄 필름을 제조하는 단계; 상기 기능성 폴리우레탄 필름의 양면에 수성 핫멜트 접착제를 도포한 후 종이를 도포하여 접착 프레스로 압착시켜 기능성 폴리우레탄 배접지를 제조하는 단계; 및 상기 기능성 폴리우레탄 배접지의 일면에 접착제를 도포한 후 천연 무늬목 원판을 압착시키는 단계로 이루어진 것임을 그 특징으로 한다. The method for producing a plywood veneer sheet may include adding a pigment, paper powder, charcoal powder, mica powder, solvent, silicone, polybutane and a flame retardant to the polyurethane to prepare a functional polyurethane film; Manufacturing a functional polyurethane backing paper by applying an aqueous hot melt adhesive on both sides of the functional polyurethane film and then applying paper to press the adhesive press with an adhesive press; And it is characterized in that consisting of the step of pressing the natural veneer disc after applying the adhesive on one side of the functional polyurethane backing paper.
이와같은 본 발명을 더욱 상세하게 설명하면 다음과 같다.The present invention will be described in more detail as follows.
본 발명에 따른 천연 무늬목 시트의 단면도를 도 1에 개략적으로 나타내었다. A cross-sectional view of the natural veneer sheet according to the invention is schematically shown in FIG. 1.
우선 천연 무늬목 원판(11)은 어떤 수종의 것이나 가능한데, 일예로 낙엽송, 노송나무, 솔창나무, 떡갈나무, 느릅나무, 벚나무, 칠엽수, 단풍나무, 녹나무, 황목나무, 계수나무, 화이트 시카모아, 로우즈 우드 마호가니, 아프리칸 마호가니, 나왕, 흑단, 자단, 브라질리안, 바시몬, 실버로우즈, 호두나무, 티크, 오크, 스프로스나무, 모아비나무, 비치, 애니그레이나무, 부빈가나무, 웬지나무, 파둑나무, 구수나무, 자작나무 등의 수종이다. 바람직하게는 낙엽송, 칠업수, 녹나무, 화이트 마호가니, 아프리칸 나왕 등 상대적으로 빈번한 엇갈린 층 무늬가 생기는 수종이다. Natural wood veneer (11) can be of any species, for example larch, cypress, pine, oak, elm, cherry, horsewood, maple, camphor, calico, cassia, white sycamore, roe Wood Wood Mahogany, African Mahogany, Nawang, Ebony, Rosewood, Brazilian, Vasimon, Silverrose, Walnut, Teak, Oak, Spruce, Moavi, Beach, Animrey, Bubinka, Wenge, Blue It is a species of a tree, an old tree, a birch. Preferably, larch, lacquer tree, camphor tree, white mahogany, African Nawang and the like are relatively frequent staggered species.
이같은 수종으로부터 원판을 슬라이스 하여 천연 무늬목 원판을 얻을 수 있다. 천연 무늬목 원판의 두께는 통상 0.13∼0.5mm인 것이 바람직하다. 만일, 천연 무늬목 원판의 두께가 상기 범위를 벗어나 너무 두꺼워지면 시공시 부러지는 문제가 있을 수 있다.The original veneer can be sliced from such species to obtain a natural veneer original. It is preferable that the thickness of a natural veneer disc is 0.13-0.5 mm normally. If the thickness of the natural veneer disc is too thick out of the above range may be broken during construction.
한편, 본 발명에서 특징적으로 사용되고 있는 폴리우레탄 배접지(200)를 구체적으로 살펴보면 다음과 같다. On the other hand, look at in detail the polyurethane backing paper 200 that is characteristically used in the present invention.
폴리우레탄 배접지(200)는 양면이 종이(12)로 접착된 폴리우레탄 필름(13)으로 이루어진 바, 여기서 폴리우레탄 필름은 폴리우레탄 수지, 안료, 종이가루, 숯가루, 견운모 분말, 용제, 실리콘, 폴리부탄 및 난연제로 이루어진 조성이다. Polyurethane backing paper 200 is composed of a
기능성 폴리우레탄 필름 조성에 있어서, 안료로는 금분이나 은분 같은 것을 사용하며, 색을 내기 위한 것으로서, 그 함량은 폴리우레탄 필름 조성 중 0.1∼11중량%인 것이 바람직하다. 그 함량이 폴리우레탄 필름 조성 중 0.1중량% 미만이면 색감이 약하고, 10중량% 초과면 외관상 좋지 않다. In the functional polyurethane film composition, gold powder, silver powder or the like is used as the pigment, and for coloring, the content thereof is preferably 0.1 to 11% by weight in the polyurethane film composition. If the content is less than 0.1% by weight in the polyurethane film composition, the color is weak, and if it is more than 10% by weight, the appearance is not good.
종이가루는 폴리우레탄 필름이 너무 질기거나 약하지 않도록 인장을 조절하며, 종이와의 접착력을 향상시키기 위해 첨가되는 것으로서, 가루의 입도는 0.01∼0.03 정도인 것이 바람직하다. 그리고, 그 함량은 기능성 폴리우레탄 필름 조성 중 0.5∼30중량%로서, 만일 0.5중량% 미만이면 배접지가 약해지고 30중량% 초과면 배접지로서의 기능을 상실하는 문제가 있을 수 있다. Paper powder is added to improve the adhesion to the paper to adjust the tension so that the polyurethane film is not too tough or weak, it is preferable that the particle size of the powder is about 0.01 to 0.03. And, the content is 0.5 to 30% by weight of the functional polyurethane film composition, if less than 0.5% by weight may be a problem that the back grounding weak, and more than 30% by weight loses the function as a backing paper.
숯가루는 수분을 흡수하는 역할을 할 수 있도록 첨가하는 것으로서, 입도가 0.05인 것이 바람직하고 그 함량은 전체 기능성 폴리우레탄 필름 조성 중 10∼50중량%인 것이 바람직하다. 만일, 그 함량이 10중량% 미만이면 방음, 흡수, 접착능력이 떨어지고 50중량% 초과면 폴리우레탄의 인장이 약해지는 문제가 있을 수 있다. Charcoal powder is added to play a role of absorbing moisture, it is preferable that the particle size is 0.05 and the content is 10 to 50% by weight of the total functional polyurethane film composition. If the content is less than 10% by weight, there is a problem that the sound insulation, absorption, adhesion is lowered, if more than 50% by weight of the polyurethane tension is weakened.
견운모 분말은 위생성을 향상시키기 위해 첨가하는 것으로서, 입도가 1500인 것이 바람직하고 그 함량은 전체 기능성 폴리우레탄 필름 조성 중 10∼50중량%인 것이 바람직하다. 만일, 그 함량이 10중량% 미만이면 방음, 인장, 접착능력이 떨어지고 50중량% 초과면 폴리우레탄 필름이 약해지는 문제가 있을 수 있다. The mica powder is added to improve hygiene, and the particle size is preferably 1500, and the content thereof is preferably 10 to 50% by weight in the total functional polyurethane film composition. If the content is less than 10% by weight, the soundproofing, tensile, adhesion is poor and if more than 50% by weight may be a problem that the polyurethane film is weak.
용제로는 메틸에틸케톤, 톨루엔, 부틸케톤, 이소프로필알콜 및 크실렌 중에서 선택된 1종 이상의 것을 사용하는 것이 바람직하다. 더 바람직하게는 메틸에틸케톤 30중량%, 이소프로필 알콜 20중량%, 부틸케톤 30중량% 및 크실렌 20중량%를 혼용하는 것이다. 그 함량은 전체 기능성 폴리우레탄 필름 조성 중 10∼50중량%인 것이 바람직하다. 만일, 그 함량이 폴리우레탄 필름 조성 중 10중량% 미만이면 흐름성이 나빠서 작업성이 떨어지고 50중량% 초과면 너무 묽어서 흐르는 문제가 있다.It is preferable to use at least one selected from methyl ethyl ketone, toluene, butyl ketone, isopropyl alcohol and xylene as the solvent. More preferably, 30 weight% of methyl ethyl ketone, 20 weight% of isopropyl alcohol, 30 weight% of butyl ketone, and 20 weight% of xylene are mixed. The content is preferably 10 to 50% by weight of the total functional polyurethane film composition. If the content is less than 10% by weight of the polyurethane film composition, the flowability is poor, the workability is poor, if it is more than 50% by weight there is a problem that is too thin to flow.
실리콘은 필름을 부드럽게 하기 위해 첨가하는 것으로서, 액상의 것이다. 그 함량은 전체 기능성 폴리우레탄 필름 조성 중 0.01∼7중량%인 것이 바람직하다. 만일 그 함량이 0.01중량% 미만이면 필름이 뻣뻣해지고 7중량% 초과면 너무 유연해져 배접지로의 기능을 상실한다.Silicone is added to soften the film and is liquid. The content is preferably 0.01 to 7% by weight of the total functional polyurethane film composition. If the content is less than 0.01% by weight, the film becomes stiff, and if it is more than 7% by weight, it becomes too flexible to lose its function as a backing paper.
또한, 촉감을 위해서 폴리부탄을 첨가하는 바, 그 함량은 전체 기능성 폴리우레탄 필름 조성 중 0.3∼20중량%인 것이 바람직하다. 만일 그 함량이 0.3중량% 미만이면 폴리우레탄 필름이 너무 빳빳해지고 20중량% 초과면 배접지의 힘이 없어지는 문제가 있을 수 있다.In addition, when the polybutane is added for the feeling, the content thereof is preferably 0.3 to 20% by weight in the total functional polyurethane film composition. If the content is less than 0.3% by weight may be a problem that the polyurethane film is too brittle and more than 20% by weight loses the back grounding force.
그리고, 난연성을 부여할 수 있도록 난연제를 첨가하는 것이 바람직한 바, 그 함량은 전체 기능성 폴리우레탄 필름 조성 중 0.5∼50중량%인 것이 바람직하다. 만일 그 함량이 0.5중량% 미만이면 열에 약해지고 50중량% 초과면 필름이 약해진다.And, it is preferable to add a flame retardant to impart flame retardancy, the content is preferably 0.5 to 50% by weight of the total functional polyurethane film composition. If the content is less than 0.5 wt%, it is weak to heat, and if it is more than 50 wt%, the film is weak.
이와같은 조성으로부터 기능성 폴리우레탄 필름을 이축압출기로 압출하여 통상의 방법에 따라 제조한 다음, 기능성 폴리우레탄 필름 원단의 양면에 폴리우레탄 수성 핫멜트 접착제를 도포한다. From this composition, the functional polyurethane film is extruded by a twin screw extruder and manufactured according to a conventional method, and then a polyurethane aqueous hot melt adhesive is applied to both sides of the functional polyurethane film fabric.
이때, 기능성 폴리우레탄 필름의 두께는 0.01∼0.5㎛인 것이 바람직하다. 기능성 폴리우레탄 필름의 두께가 0.01㎛보다 얇으면 배접지로서의 기능을 상실하고 0.5㎛보다 두꺼워지면 배접지로서 너무 빳빳해지는 문제가 있을 수 있다. At this time, it is preferable that the thickness of a functional polyurethane film is 0.01-0.5 micrometer. If the thickness of the functional polyurethane film is thinner than 0.01 μm, it may lose its function as a backing paper, and if it is thicker than 0.5 μm, there may be a problem that it becomes too thin as a backing paper.
여기서, 수성 핫멜트 접착제는 수성 폴리우레탄 수지 30중량%, 에틸렌-비닐아세테이트 30중량%, 단마루 고무 10중량%, 아라비아 고무 10중량% 및 로진 10중량%를 포함하는 것이 바람직하다. Here, it is preferable that the aqueous hot melt adhesive contains 30% by weight of aqueous polyurethane resin, 30% by weight of ethylene-vinylacetate, 10% by weight of ridged rubber, 10% by weight of gum arabic and 10% by weight of rosin.
수성 핫멜트 접착제는 접착 후 건조 상태에서는 접착성이 없으므로 기능성 폴리우레탄 필름에 미리 접착제를 도포해 놓고, 반제품 상태로 보관하여 두었다가 종이 등 배접지의 도포를 수행할 때 프레스로 압착하면 된다. Since the aqueous hot melt adhesive is non-adhesive in the dry state after adhesion, the adhesive is applied to the functional polyurethane film in advance, stored in a semi-finished state, and then pressed by a press when applying the backing paper such as paper.
종이를 접착 프레스로 압착시키면 본 발명에 따른 기능성 폴리우레탄 배접지(200)를 얻을 수 있다. 접착 프레스로 압착시 그 압력은 1500kgf인 것이 바람직하고, 온도는 120℃인 것이 바람직하다. 통상, 핫멜트 접착제는 120℃에서 용융되는 바, 보다 접착효율을 높이기 위해서 최소 1500kgf 정도의 압력을 가하는 것이 바람직하다. Pressing the paper with an adhesive press can obtain a functional polyurethane backing paper 200 according to the present invention. It is preferable that the pressure at the time of crimping | bonding with an adhesive press is 1500 kgf, and the temperature is 120 degreeC. Usually, the hot melt adhesive is melted at 120 ° C., and therefore, it is preferable to apply a pressure of at least 1500 kgf in order to increase the adhesion efficiency.
여기서, 종이라 함은 하드지, 한지, 판지, 부직포, 인견사, 면직 원단, 인견사 원단 등을 일컫는 것으로서, 특별히 한정되지는 않는다. 그 두께는 0.1∼0.2㎛인 것이 바람직하다. 종이의 두께가 너무 얇으면 접착제 도포시 종이 표면이 울고, 또한 접착제 도포시 기포가 차있게 되어 무늬목 상에 기포자국이 보이게 된다. 반면, 종이 두께가 너무 두꺼우면 접착제가 과량으로 필요하고 접착시 압력도 증가시켜야 하기 때문에 상기 범위 정도의 두께를 갖는 것이 바람직하다. Here, the paper refers to hard paper, Hanji, cardboard, non-woven fabric, silk yarn, cotton fabric, silk yarn fabric, etc., is not particularly limited. It is preferable that the thickness is 0.1-0.2 micrometer. If the thickness of the paper is too thin, the surface of the paper will cry when the adhesive is applied, and the bubble will be filled when the adhesive is applied, and the bubble marks will be visible on the veneer. On the other hand, if the paper thickness is too thick, it is preferable to have a thickness in the above range because an excessive amount of adhesive is required and the pressure at the time of adhesion must also be increased.
그 다음, 폴리우레탄 배접지(200)의 일면, 즉 종이(12)면에 접착제를 도포하고 준비된 천연 무늬목 원판(11)을 압착시키면 본 발명의 천연 무늬목 시트를 제조할 수 있다. 이때 사용하는 접착제는 젤라틴 접착제 20중량%, 폴리비닐알콜 30중량%, 아크릴계 수지 20중량%, 수성 우레탄 핫멜트 접착제 20중량% 및 에틸렌-비닐아세테이트 10중량%로 이루어진 것이 바람직하나, 이에 한정되는 것은 아니다. 압착시 압력은 1500kgf인 것이 바람직하고, 온도는 120℃인 것이 바람직하다. 통상, 핫멜트 접착제는 120℃에서 용융되는 바, 보다 접착효율을 높이기 위해서 최소 1500kgf 정도의 압력을 가하는 것이 바람직하다. Then, by applying an adhesive on one surface of the polyurethane backing paper 200, that is, the paper 12 surface, and compressing the prepared
본 발명에 따라 기능성 폴리우레탄 배접지를 천연 무늬목 원판 후면에 압착시킬 경우 무늬목 원판에 유연성을 부여하여 제품의 깨짐을 방지할 수 있다. 즉, 천연 무늬목 원판의 경우 고유한 나무의 특성상 갈라지는 문제를 가지고 있으며, 또한 접착제 도포 후 건조 과정에서 나무가 수축하는 등의 문제점이 있는 바, 본 발명에서와 같이 기능성 폴리우레탄 배접지를 사용할 경우 이와같은 문제점을 불식시킬 수 있다. According to the present invention, when the functional polyurethane backing is pressed onto the back of the natural veneer disc, it is possible to prevent the breakage of the product by giving flexibility to the veneer disc. That is, in the case of natural veneer disc has a problem of cracking due to the nature of the unique wood, and also has a problem such that the shrinkage of the tree in the drying process after applying the adhesive, such as when using a functional polyurethane backing paper as in the present invention The same problem can be eliminated.
또한, 폴리우레탄 특성상 방음, 방수성을 발휘할 수 있을 뿐만 아니라 난연성을 부여할 수 있다. In addition, the polyurethane properties can exhibit soundproofing and waterproofing properties as well as impart flame retardancy.
본 발명에 따른 천연 무늬목 시트의 길이나 두께는 목적하는 바에 따라 그 변형이 가능하다. The length or thickness of the natural veneer sheet according to the present invention can be modified as desired.
이하, 본 발명을 실시예에 의거 상세히 설명하면 다음과 같은 바, 본 발명이 실시예에 의해 한정되는 것은 아니다. Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited by the Examples.
제조예 1: 기능성 폴리우레탄 필름의 제조 Preparation Example 1 Preparation of Functional Polyurethane Film
기능성 폴리우레탄 수지(PU #108, 덕성화학 제품) 50g에 은분(한일화학 제품) 15g, 종이가루(독일 네트(주) 제품, 입도 0.05) 15g, 숯가루(삼성화학 제품, 입도 0.03) 20g, 견운모 분말(입도 300메쉬, 삼성화학 제품) 18g, 메틸에틸케톤 5㎖, 이소부틸 알콜 10㎖, 부틸케톤 2㎖, 크실렌 10㎖, 실리콘(일본 이시다(주)제품) 0.1∼0.2g, 폴리부탄(대일화학 제품) 0.5g 및 난연제(삼성화학 제품) 20g을 혼합한 다음, 이축압출기로 압출하여 기능성 폴리우레탄 필름을 두께 0.2∼0.3㎛로 얻었다. 50g of functional polyurethane resin (PU # 108, Duksung Chemical) 15g of silver powder (Hanil Chemical), 15g of paper powder (German Net Co., Ltd., particle size 0.05), 20g of charcoal powder (Samsung Chemical, 0.03) Cicada powder (particle size 300 mesh, Samsung Chemical) 18 g, methyl ethyl ketone 5 ml, isobutyl alcohol 10 ml, butyl ketone 2 ml, xylene 10 ml, silicone (made by Ishida Japan) 0.1-0.2 g, polybutane 0.5 g of Daeil Chemical Co., Ltd. and 20 g of flame retardant (Samsung Chemical Co., Ltd.) were mixed and then extruded by a twin screw extruder to obtain a functional polyurethane film having a thickness of 0.2 to 0.3 µm.
실시예 1Example 1
낙엽송의 원목을 슬라이스 하여 천연 무늬목 원판을 두께 0.13∼0.5mm로 준비하였다. Solid wood of larch was sliced to prepare a natural veneer disc of 0.13-0.5 mm in thickness.
이와는 별도로, 상기 제조예 1에 따라 얻어진 기능성 폴리우레탄 필름 원단의 양면에 폴리우레탄 수지 30중량%, 에틸렌-비닐아세테이트 30중량%, 단마루 고무 10중량%, 아라비아 고무 10중량% 및 로진 10중량%를 포함하는 수성 핫멜트 접착제를 나이프를 사용하여 도포한 다음, 양면에 종이를 접착시킨 후 프레스로 압력 1500kgf로 120℃온도 하에서 압착시켰다. Apart from this, 30% by weight of polyurethane resin, 30% by weight of ethylene-vinylacetate and single floor rubber on both sides of the functional polyurethane film fabric obtained in Preparation Example 1 above. An aqueous hot melt adhesive comprising 10% by weight, 10% by weight of gum arabic and 10% by weight of rosin was applied using a knife, and then the paper was adhered to both sides and pressed at 120 ° C. under a pressure of 1500 kgf with a press.
그 다음 종이의 일면에 젤라틴 접착제 20중량%, 폴리비닐알콜 30중량%, 아크릴계 수지 20중량%, 수성 우레탄 핫멜트 접착제 20중량% 및 에틸렌-비닐아세테이트 10중량%를 포함하는 접착제를 도포한 다음, 상기에서 준비된 천연 무늬목 원판을 압력 1500kgf, 온도 120℃로 압착시켰다. Then, an adhesive including 20 wt% gelatin adhesive, 30 wt% polyvinyl alcohol, 20 wt% acrylic resin, 20 wt% aqueous urethane hot melt adhesive, and 10 wt% ethylene-vinylacetate was applied to one side of the paper, The natural veneer disc prepared at was pressed at a pressure of 1500 kgf and a temperature of 120 ° C.
이와같이 얻어진 천연 무늬목 시트를 벽이나 원목가구에 부착한 다음 1200℃ 열을 가하여 난연성을 평가한 결과, 1200℃의 열에도 이상이 없었다.The natural veneer sheet thus obtained was attached to a wall or wooden furniture and then subjected to 1200 ° C. heat to evaluate flame retardancy.
그리고, 방수성을 시험하기 위하여 시트의 일면에 수압 1300되도록 가하여 반대면으로 물이 스미는 정도를 측정한 결과, 반대면에 물이 전혀 투과되지 않았다.In addition, in order to test the water resistance, water pressure was applied to one surface of the sheet to 1300 and the degree of water smearing on the opposite surface was measured. As a result, no water penetrated the opposite surface.
또한, 시트에 1200dB로 경음한 결과, 후면에서 전혀 소음이 관찰되지 않았다.In addition, as a result of being audible at 1200 dB on the sheet, no noise was observed at the rear.
한편, 유연성을 시험하기 위하여 천연 무늬목 시트를 1500∼200으로 인장한 결과 끊어지지 않았으며, 비벼본 결과 구김이 없었다.On the other hand, in order to test the flexibility, the natural veneer sheet was pulled to 1500 ~ 200 as a result of not breaking, as a result of rubbing was not wrinkled.
이상에서 상세히 설명한 바와 같이, 본 발명에 따라 기능성 폴리우레탄 필름을 포함하는 배접지를 사용한 천연 무늬목 시트는 기능성 폴리우레탄 수지로 인한 방수, 방음 및 난연성을 발휘하면서 천연 무늬목 원판에는 유연성을 부여할 수 있게 되어 깨짐이나 시간의 경과에 따른 변형을 방지할 수 있어 그 취급이 용이하며, 가구, 벽지, 바닥재 등과 같은 건축자재 및 인테리어에 유용하게 사용할 수 있다. As described in detail above, the natural veneer sheet using a backing paper containing a functional polyurethane film according to the present invention is to provide flexibility to the natural veneer disc while exhibiting waterproof, soundproofing and flame retardant due to the functional polyurethane resin It is easy to handle because it can prevent the cracking and deformation over time, it can be useful for building materials and interiors such as furniture, wallpaper, flooring and the like.
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| KR100801959B1 (en) * | 2006-04-14 | 2008-02-12 | 이순노 | Solid wood tape bonding method of aluminum chassis |
| KR100751283B1 (en) * | 2006-10-31 | 2007-08-27 | 고중신 | Back ground of veneer sheet |
| KR100796729B1 (en) * | 2007-01-11 | 2008-01-21 | 한국호진공업 주식회사 | Manufacturing method the functional coating liquid of building interior materials |
| KR101208407B1 (en) * | 2010-10-04 | 2012-12-05 | 삼성전자주식회사 | Wood film and formig method for the same |
| KR101253281B1 (en) * | 2011-09-01 | 2013-04-10 | (주) 인목 | Fabrication method of case for portable electric device and case for portable electric device |
| KR101422088B1 (en) * | 2012-12-28 | 2014-07-23 | (주)로움 | Fabric Having 3-Dimensional Design and Method for Manufacturing the Same |
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| KR200177004Y1 (en) * | 1999-09-04 | 2000-04-15 | 김효선 | Veneers |
| KR20000060158A (en) * | 1999-03-12 | 2000-10-16 | 성재갑 | Flooring Laminated with Sliced Wood Sheet &Vinylchloride Resin Sheet, and the Method for the Manufacturing thereof |
| KR200215517Y1 (en) * | 2000-07-10 | 2001-03-15 | 신현문 | A wrapping sheet and wood roll for make use of maturar wood |
| KR20010049784A (en) * | 1999-07-15 | 2001-06-15 | 빌프리더 하이더 | Soft, Elastic Polyurethane Films, Process for the Production thereof and their Use |
| KR200246494Y1 (en) * | 2001-06-07 | 2001-10-29 | 주식회사 크라텍 | a panel for interior |
| KR20020005107A (en) * | 2000-07-08 | 2002-01-17 | 추두련 | Patterned wood Sheet made of Natural Timber |
| WO2002028636A1 (en) * | 2000-10-03 | 2002-04-11 | 3M Innovative Properties Company | Method of finishing a wood substrate |
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|---|---|---|---|---|
| KR20000060158A (en) * | 1999-03-12 | 2000-10-16 | 성재갑 | Flooring Laminated with Sliced Wood Sheet &Vinylchloride Resin Sheet, and the Method for the Manufacturing thereof |
| KR20010049784A (en) * | 1999-07-15 | 2001-06-15 | 빌프리더 하이더 | Soft, Elastic Polyurethane Films, Process for the Production thereof and their Use |
| KR200177004Y1 (en) * | 1999-09-04 | 2000-04-15 | 김효선 | Veneers |
| KR20020005107A (en) * | 2000-07-08 | 2002-01-17 | 추두련 | Patterned wood Sheet made of Natural Timber |
| KR200215517Y1 (en) * | 2000-07-10 | 2001-03-15 | 신현문 | A wrapping sheet and wood roll for make use of maturar wood |
| WO2002028636A1 (en) * | 2000-10-03 | 2002-04-11 | 3M Innovative Properties Company | Method of finishing a wood substrate |
| KR200246494Y1 (en) * | 2001-06-07 | 2001-10-29 | 주식회사 크라텍 | a panel for interior |
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