KR20050055567A - Wallpaper using thermoplastic polyurethane composite - Google Patents
Wallpaper using thermoplastic polyurethane composite Download PDFInfo
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- KR20050055567A KR20050055567A KR1020030088794A KR20030088794A KR20050055567A KR 20050055567 A KR20050055567 A KR 20050055567A KR 1020030088794 A KR1020030088794 A KR 1020030088794A KR 20030088794 A KR20030088794 A KR 20030088794A KR 20050055567 A KR20050055567 A KR 20050055567A
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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
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B29/007—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to a foam layer
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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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/18—Particular kinds of wallpapers
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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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0278—Polyurethane
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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
- B32B2607/00—Walls, panels
- B32B2607/02—Wall papers, wall coverings
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
Abstract
본 발명은 열가소성 폴리우레탄 수지 조성물을 이용한 벽지에 관한 것으로, 이 벽지는 최하부의 기재층, 그 위에 적층되는 중심층, 이에 무늬를 부여하는 인쇄층 및 최상부의 표면보호를 위한 표면처리층으로 구성된다. 특히, 상기 중심층은 열가소성 폴리우레탄 100 중량부, 유연제 2 내지 25 중량부, UV 흡수제 0.1 내지 1.5 중량부, 안정제 0.1 내지 2.0 중량부, 가공제(활성제) 0.5 내지 2.0 중량부, 충진제 5 내지 30 중량부 및 안료 2 내지 20 중량부로 이루어지 조성물로 제조한 비발포층이거나, 이에 발포제 1 내지 5 중량부 및 발포안정제 0.5 내지 2.0중량부를 첨가하여 발포 제조한 발포 중심층인 것을 특징으로 한다. The present invention relates to a wallpaper using a thermoplastic polyurethane resin composition, which is composed of a lower substrate layer, a center layer laminated thereon, a printing layer imparting a pattern thereto, and a surface treatment layer for protecting the upper surface. . In particular, the core layer is 100 parts by weight of thermoplastic polyurethane, 2 to 25 parts by weight of softener, 0.1 to 1.5 parts by weight of UV absorber, 0.1 to 2.0 parts by weight of stabilizer, 0.5 to 2.0 parts by weight of processing agent (active agent), 5 to 30 fillers. It is characterized in that the non-foaming layer made of a composition consisting of 2 parts by weight to 20 parts by weight and a pigment, or a foamed core layer prepared by foaming by adding 1 to 5 parts by weight of the blowing agent and 0.5 to 2.0 parts by weight of the foam stabilizer.
이와 같이 구성되는 열가소성 폴리우레탄 수지 조성물을 이용한 벽지는, 환경 및 인체 건강에 무해할 뿐 아니라, 기존의 압연기에 의한 연속 제조 및 발포기에 의한 균일한 발포 작업이 가능하여 경제적 단점을 극복할 수 있는 장점이 있다. The wallpaper using the thermoplastic polyurethane resin composition configured as described above is not only harmless to the environment and human health, but also capable of overcoming economic disadvantages by enabling continuous foaming by the existing rolling mill and uniform foaming by the foaming machine. There is this.
Description
본 발명은 열가소성 폴리우레탄(TPU, Thermoplastic Polyurethane) 수지 조성물을 이용한 벽지에 관한 것이다. The present invention relates to a wallpaper using a thermoplastic polyurethane (TPU, Thermoplastic Polyurethane) resin composition.
일반적으로 벽지의 주원료로는 폴리염화비닐(PVC, Poly Vinyl Chloride)이 사용되고 있다. 그러나, 이러한 PVC는 환경호르몬과 다이옥신등의 환경 유해 물질의 원인이 되며, 휘발성 유기화학물질(VOC, Volatile Organic Compound)의 발생으로 식하우스(Sick House) 현상 및 빌딩증후군(SBS, Sick Building Syndrome) 등을 유발하여 선진국의 사용 규제와 사회적인 기피현상이 심화되고 있으며, 우리나라에서도 그 규제가 본격화되고 있다.(현재 정부는 다중이용시설 등의 실내공기질 관리법 공포시행의 예정중에 있다.)In general, polyvinyl chloride (PVC) is used as a main material of wallpaper. However, such PVC causes environmental harmful substances such as environmental hormones and dioxins, and the Sick House phenomenon and the building syndrome (SBS) due to the generation of volatile organic chemicals (VOCs). Increasingly, the restrictions on the use of advanced countries and the social evasion phenomenon are intensifying, and the regulations are intensifying in Korea. (The government is currently promulgating the Act on Indoor Air Quality Control Act, such as multi-use facilities.)
이러한 문제를 해결하기 위하여 환경친화적 소재인 열가소성 폴리우레탄(TPU)의 사용을 고려할 수 있으나, 이러한 열가소성 폴리우레탄은 점착성(粘着性)이 강하여 압연기로 성형할 수 없으므로 연속 가공에 어려움이 있고, 따라서 이를 이용하여 벽지를 제조하는 경우 생산성 저하로 비용이 현저히 증가될 뿐 아니라, 발포기에 의한 발포가 균일하게 이루어지 않아 발포층을 이용한 벽지의 생산이 불가능한 문제가 있었다.In order to solve this problem, the use of environmentally friendly thermoplastic polyurethane (TPU) can be considered, but such a thermoplastic polyurethane is difficult to be formed by a rolling mill due to its strong adhesiveness, thus making it difficult to process continuously. In the case of manufacturing the wallpaper by using not only the cost is significantly increased due to the decrease in productivity, there is a problem that the production of the wallpaper using the foam layer is not possible because the foaming by the foaming machine is not made uniform.
본 발명은 상기와 같은 문제를 해결하여 환경오염을 최소화하고, 인체 건강에 무해한 열가소성 폴리우레탄(TPU) 수지 조성물을 이용한 벽지를 제공하는 것을 그 목적으로 한다.The present invention is to solve the above problems to minimize environmental pollution, to provide a wallpaper using a thermoplastic polyurethane (TPU) resin composition harmless to human health.
본 발명의 목적은 또한 열가소성 폴리우레탄(TPU)을 이용하면서도 압연기에 의한 연속 가공이 가능하여 비용의 증가 없이 생산할 수 있는 친환경적 벽지를 제공하는 것이다. 즉, 벽지 생산을 위하여 이미 널리 사용되고 있는 설비인 압연기에서 연속 시팅(sheeting)을 하고, 이를 기존의 발포기에서 연속 발포하여 탄성발포체(300~600%의 배율) 및 비발포체를 생산할 수 있는 열가소성 폴리우레탄 수지 조성물을 이용하여 기능성과 환경친화성이 우수한 벽지를 제공하는 것이다.It is also an object of the present invention to provide an environmentally friendly wallpaper that can be produced without an increase in cost by enabling continuous processing by a rolling mill while using thermoplastic polyurethane (TPU). That is, thermoplastic sheeting can be produced in the rolling mill, which is already widely used for the production of wallpaper, and continuously foamed in a conventional foaming machine to produce elastic foams (magnification of 300 to 600%) and non-foams. The urethane resin composition is used to provide a wallpaper having excellent functionality and environmental friendliness.
상기한 목적을 달성하기 위한 본 발명의 벽지는 최하부의 기재층과, 상기 기재층 위에 적층되고, 열가소성 폴리우레탄 100 중량부, 유연제 2 내지 25 중량부, UV 흡수제 0.1 내지 1.5 중량부, 안정제 0.1 내지 2.0 중량부, 가공제(활성제) 0.5 내지 2.0 중량부, 충진제 5 내지 30 중량부, 안료 2 내지 20 중량부, 발포제 1 내지 5 중량부, 발포안정제 0.5 내지 2.0중량부를 포함한 조성물로 발포하여 제조한 발포 중심층과, 상기 중심층 위에 무늬를 부여하는 인쇄층과, 최상부에 표면보호를 위한 표면처리층으로 구성되는 것을 특징으로 한다. The wallpaper of the present invention for achieving the above object is laminated on the base material layer and the base material at the bottom, 100 parts by weight of thermoplastic polyurethane, 2 to 25 parts by weight softener, 0.1 to 1.5 parts by weight UV absorber, 0.1 to stabilizer Prepared by foaming with a composition comprising 2.0 parts by weight, 0.5 to 2.0 parts by weight of a processing agent (active agent), 5 to 30 parts by weight of filler, 2 to 20 parts by weight of pigment, 1 to 5 parts by weight of foaming agent, 0.5 to 2.0 parts by weight of foam stabilizer. It is characterized by consisting of a foamed center layer, a printed layer giving a pattern on the center layer, and a surface treatment layer for surface protection on the top.
또한 본 발명의 벽지는 최하부의 기재층과, 상기 기재층 위에 적층되고, 열가소성 폴리우레탄 100 중량부, 유연제 2 내지 25 중량부, UV 흡수제 0.1 내지 1.5 중량부, 안정제 0.1 내지 2.0 중량부, 가공제(활성제) 0.5 내지 2.0 중량부, 충진제 5 내지 30 중량부, 안료 2 내지 20 중량부를 포함한 조성물로 제조한 비발포 중심층과, 상기 중심층 위에 무늬를 부여하는 인쇄층과, 최상부에 표면보호를 위한 표면처리층으로 구성될 수 있다. In addition, the wallpaper of the present invention is laminated on the lowermost base layer and the base layer, 100 parts by weight of thermoplastic polyurethane, 2 to 25 parts by weight of softener, 0.1 to 1.5 parts by weight of UV absorber, 0.1 to 2.0 parts by weight of stabilizer, processing agent (Activator) A non-foamed core layer made of a composition containing 0.5 to 2.0 parts by weight, 5 to 30 parts by weight of a filler, and 2 to 20 parts by weight of a pigment, a printed layer imparting a pattern on the center layer, and surface protection at the top. It may be composed of a surface treatment layer for.
그리고, 상기 중심층은 바람직하게는 표면의 입체감과 무늬를 제공하기 위하여 엠보싱 처리될 수 있다.And, the center layer may be preferably embossed to provide a three-dimensional appearance and pattern of the surface.
이하, 첨부된 도면의 참조한 일 실시예를 통하여 본 발명을 상세히 설명한다. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1에 도시된 바와 같이 본 발명의 벽지의 최하단에는 기재층(1)이 형성되는데, 이 기재층(1)은 일반적으로 중절지와 백상지 등 종이가 사용되나, 이뿐 아니라 직물, 부직포, 니트 등 다양한 재료가 사용될 수 있다. As shown in FIG. 1, the base layer 1 is formed at the bottom of the wallpaper of the present invention, and the base layer 1 is generally made of paper such as heavy paper and woodfree paper, as well as fabrics, nonwoven fabrics, knits, and the like. Various materials can be used.
상기 기재층(1) 위에는 벽지의 가장 중요한 역할을 하는 중심층(2)이 놓여지는데, 이는 용도에 따라 발포층 또는 비발포층이 사용될 수 있다. 특히, 본 발명에서는 본 중심층(2)의 주 원료로 열가소성 폴리우레탄이 사용된다. 열가소성 폴리우레탄(TPU)은 사용후에도 재활용이 가능하고, 소각하는 경우에도 염소, 취소 등의 할로겐 화합물이 배출되지 않는 환경친화적 소재이다. On the base layer 1 is placed a central layer 2 which plays the most important role of wallpaper, which may be a foamed or non-foamed layer depending on the application. In particular, in the present invention, thermoplastic polyurethane is used as the main raw material of the main layer 2. Thermoplastic polyurethane (TPU) is an environmentally friendly material that can be recycled even after use and does not emit halogen compounds such as chlorine or cancellation even when incinerated.
상기 중심층(2)은 발포층이 사용되는 경우, 열가소성 폴리우레탄 100 중량부, 유연제 2 내지 25 중량부, UV 흡수제 0.1 내지 1.5 중량부, 안정제 0.1 내지 2.0 중량부, 가공제(활성제) 0.5 내지 2.0 중량부, 충진제 5 내지 30 중량부, 안료 2 내지 20 중량부, 발포제 1 내지 5 중량부, 발포안정제 0.5 내지 2.0중량부를 포함한 조성물을 사용하고, 비발포층이 사용되는 경우, 발포제와 발포안정제가 첨가되지 않은 조성물을 사용한다. When the foam layer is used, the center layer 2 is 100 parts by weight of thermoplastic polyurethane, 2 to 25 parts by weight of a softener, 0.1 to 1.5 parts by weight of a UV absorber, 0.1 to 2.0 parts by weight of a stabilizer, and 0.5 to 5 parts by weight of a processing agent (active agent). When a composition comprising 2.0 parts by weight, 5 to 30 parts by weight of filler, 2 to 20 parts by weight of pigment, 1 to 5 parts by weight of foaming agent, 0.5 to 2.0 parts by weight of foam stabilizer, and a non-foaming layer is used, foaming agent and foam stabilizer Use the composition without addition.
열가소성 폴리우레탄은 점착성이 커서 압연기에 의한 연속 성형이 불가능하여 종래에는 압출기를 이용한 박판(Sheet)제조에만 사용되어 왔으나, 상기한 조성물은 이러한 점착성을 보완하여 압연기에 의한 연속 성형이 가능하고, 따라서 생산성 저하에 따른 비용의 증가 없이 친환경 소재로서 PVC를 대체할 수 있다.Thermoplastic polyurethane has been used only for the manufacture of sheets using an extruder because it is impossible to continuously mold by a rolling mill, but the above-described composition can be continuously molded by a mill by supplementing such adhesiveness, and thus productivity PVC can be replaced as an eco-friendly material without increasing the cost of degradation.
상기 유연제는 오일, 구연산계 가소제, 러버계 등을 단독 또는 혼합하여 사용하는 것이 바람직하며, 상기 UV흡수제는 벤조페놀이나 벤조트리아졸계를 사용할 수 있으나, 특히 HALS(Hindered amide light stabilizer)계를 사용하는 경우, 기후 열화에 의한 내구성 즉, 내후성을 향상시키고, 빛에 의한 변화 방지 및 이행(migration)방지 효과를 얻을 수 있다. The softening agent is preferably used alone or mixed with oil, citric acid-based plasticizer, rubber, etc., the UV absorber may be benzophenol or benzotriazole-based, but in particular using a HALS (Hindered amide light stabilizer) system In this case, durability due to climate degradation, that is, weather resistance can be improved, and change prevention and migration prevention effect by light can be obtained.
상기 안정제는 Ba,Zn,Ca,Na 등의 유기산금속염계, 올레산(Oleic Acid), 몬탄(갈탄) 유도체 등을 사용할 수 있다. 또한, 상기 가공제(활성제)로는 탄화수소계 PE-Wax, 지방산 아마이드(Stearic-Amide,Oleic-Amide) 계통을 사용하는 것이 바람직하다.The stabilizer may be organic acid metal salts such as Ba, Zn, Ca, Na, oleic acid, montan (galtan) derivatives and the like. In addition, it is preferable to use a hydrocarbon-based PE-Wax, fatty acid amide (Stearic-Amide, Oleic-Amide) system as the processing agent (active agent).
물성 보강을 위해서는 충진제를 포함할 수 있는데, 이러한 충진제는 탄산칼슘(CaCO3)을 사용하는 것이 바람직하다. 또한, 조성물의 용도에 따라 안료를 2 내지 20 중량부 포함할 수 있다.In order to reinforce physical properties, a filler may be included. Such a filler is preferably calcium carbonate (CaCO 3 ). In addition, it may include 2 to 20 parts by weight of the pigment, depending on the use of the composition.
발포 제조에 의한 발포층은 쿠션감과 충격흡수기능, 보행감, 보온, 단열, 방음, 방진등의 기능을 부여할 수 있는바, 이를 위하여 사용되는 발포제는 유기화학 발포제가 주로 사용되며, 특히 이아조디카본아마이드(Azodicarbonamide), OBSH(P,P'-oxybis(benzene sufonyl hydrazide)), TSH(P-toluene sulfonyl hydrazide)등을 사용하는 것이 바람직하다. 이때, 발포안정제를 0.5 내지 2.0중량부 정도 사용할 수 있으며, 이는 바륨(Ba),아연(Zn) 등의 유기산금속염계 복합 안정제가 사용될 수 있다. 이와 같이 발포제 및/또는 발포안정제를 포함하는 조성물을 사용하여 발포하는 경우, 열가소성 폴리우레탄의 환경친화적 특성을 그대로 가지면서도, 종래 PVC 조성물과 같은 균일한 연속 발포체를 얻을 수 있다.The foam layer by the foam production can give a function of cushioning and shock absorbing function, walking feeling, insulation, heat insulation, soundproofing, dustproof, etc. The foaming agent used for this is mainly an organic chemical foaming agent, especially Iazodi It is preferable to use carbonamide (Azodicarbonamide), OBSH (P, P'-oxybis (benzene sufonyl hydrazide)), TSH (P-toluene sulfonyl hydrazide) and the like. At this time, the foaming stabilizer may be used in about 0.5 to 2.0 parts by weight, which may be used organic acid metal salt-based complex stabilizers such as barium (Ba), zinc (Zn). Thus, when foaming using a composition containing a blowing agent and / or a foam stabilizer, it is possible to obtain a uniform continuous foam as in the conventional PVC composition, while retaining the environmentally friendly characteristics of the thermoplastic polyurethane.
상기 중심층 위에는 인쇄층(3)이 형성되는데, 인쇄기(Gravure,6~8도)를 이용하여 무늬등을 인쇄하거나 PET(Polyethyleneterethalate)/ OPP(Orientedpolypropylene) 필름위에 프린팅한 전사지를 이용하는 전사방법 또는 플로터(Plotter)를 이용한 실사 출력방법 등에 의하여 인쇄하여 형성된다.A print layer 3 is formed on the center layer, and a transfer method or plotter using a transfer paper printed on a PET (Polyethyleneterethalate) / OPP (Orientedpolypropylene) film by printing a pattern or the like using a printing machine (Gravure, 6 to 8 degrees). It is formed by printing by a real output method using a Plotter.
바람직하게는 상기 중심층은 엠보싱 처리될 수 있다. 이는 벽지의 표면에 입체감이나 엠보싱의 롤 문양에 따라 다양한 무늬를 부여할 수 있다. Preferably the central layer may be embossed. This can give various patterns to the surface of the wallpaper according to the three-dimensional or roll pattern of embossing.
최상단의 표면처리층(4)은 오염물 부착 및 긁힘을 방지하고, 바람직한 감촉을 부여하기 위한 것으로, 일반적으로 광경화형 우레탄 아크릴레이트 등의 UV처리제를 포함하여 형성된다. The uppermost surface treatment layer 4 is for preventing contaminants from adhering and scratching and providing a desirable feel, and is generally formed by including a UV treatment agent such as a photocurable urethane acrylate.
이와 같이 구성된 벽지는 환경호르몬이나 다이옥신, VOC 등의 발생 염려가 없는 환경친화적이고 인체에 무해한 벽지로서, 이를 위한 제조 비용의 증가를 수반하지 않는 장점이 있다.The wallpaper configured as described above is environmentally friendly and harmless to the human body without fear of occurrence of environmental hormones, dioxins, VOCs, etc., and does not involve an increase in manufacturing costs for them.
이상에서 살펴본 바와 같이, 본 발명에 따른 벽지는 열가소성 폴리우레탄을 기초 소재로 하고 있어, 환경호르몬이나 다이옥신, VOC 등의 발생 염려가 없어 환경친화성이 우수하며, 재활용이 가능하다는 장점이 있다.As described above, the wallpaper according to the present invention is based on the thermoplastic polyurethane, there is no concern about the occurrence of environmental hormones, dioxin, VOC, etc., has excellent environmental friendliness and can be recycled.
또한, 압연기에 의한 연속 성형과 연속발포체의 가공, 생산이 가능하여 생산성 저하를 수반하지 않고 PVC를 대체할 수 있다. 아울러 이러한 벽지의 가공, 생산을 위한 압연기, 발포기 등은 종래의 PVC 벽지의 생산에 이미 널리 사용되어오던 것으로 달리 새로운 설비 없이도 기존의 설비를 활용하여 벽지 생산이 가능하다는 장점이 있다.In addition, the continuous molding by the rolling mill and the processing and production of the continuous foam can be produced, it is possible to replace PVC without accompanied by a decrease in productivity. In addition, the rolling mill, foaming machine, etc. for the processing, production of such wallpaper has already been widely used in the production of conventional PVC wallpaper, there is an advantage that can be produced wallpaper using existing equipment without a new equipment.
도 1은 본 발명에 따른 벽지의 일 실시예를 도시한 부분 단면도이다.1 is a partial cross-sectional view showing an embodiment of the wallpaper according to the present invention.
<도면의 주요 부분에 대한 설명>Description of the main parts of the drawing
1: 기재층 2: 중심층1: base layer 2: center layer
3: 인쇄층 4: 표면처리층3: printed layer 4: surface treatment layer
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| KR1020030088794A KR20050055567A (en) | 2003-12-08 | 2003-12-08 | Wallpaper using thermoplastic polyurethane composite |
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| KR1020030088794A KR20050055567A (en) | 2003-12-08 | 2003-12-08 | Wallpaper using thermoplastic polyurethane composite |
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| KR20050055567A true KR20050055567A (en) | 2005-06-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101221733B1 (en) * | 2009-12-22 | 2013-01-11 | (주)엘지하우시스 | Insulation wallpaper and a method for manufacturing wallpaper using thereof |
| US20230037309A1 (en) * | 2016-05-05 | 2023-02-09 | Polygreen Srl | Infill material for artificial grass surfaces, an artificial grass surface structure and a recycling method |
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2003
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101221733B1 (en) * | 2009-12-22 | 2013-01-11 | (주)엘지하우시스 | Insulation wallpaper and a method for manufacturing wallpaper using thereof |
| US20230037309A1 (en) * | 2016-05-05 | 2023-02-09 | Polygreen Srl | Infill material for artificial grass surfaces, an artificial grass surface structure and a recycling method |
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