KR102550901B1 - Composite wood flooring with a mixed layer of stone powder and PVC laminated - Google Patents

Composite wood flooring with a mixed layer of stone powder and PVC laminated Download PDF

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KR102550901B1
KR102550901B1 KR1020220087355A KR20220087355A KR102550901B1 KR 102550901 B1 KR102550901 B1 KR 102550901B1 KR 1020220087355 A KR1020220087355 A KR 1020220087355A KR 20220087355 A KR20220087355 A KR 20220087355A KR 102550901 B1 KR102550901 B1 KR 102550901B1
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layer
pvc
base layer
sheet
transfer paper
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신기현
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신기현
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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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/042—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
    • 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
    • B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
    • 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
    • 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
    • B32B37/24—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 not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/06—Embossing
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • B32B38/145—Printing
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/002—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising natural stone or artificial stone
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

본 발명은, 석분과 PVC를 혼합하여 열압 가공한 베이스층과 다양한 문양이 인쇄된 PVC 전사지 인쇄층을 라미네이팅한 다음 목질층의 상부에 접착시켜서 타일과 같은 느낌을 주면서 표면내구성, 내긁힘성, 내마모성 및 가공성이 용이하여 바닥재는 물론 벽면과 천장 등의 실내 인테리어 소재로 유용하게 사용할 수 있는, 석분과 PVC 혼합층이 적층된 복합 목질바닥재를 제공하기 위한 것이다.In the present invention, a base layer obtained by mixing stone powder and PVC and subjected to hot pressure processing and a PVC transfer paper printing layer on which various patterns are printed are laminated, and then bonded to the upper part of the wood layer to give a tile-like feel while improving surface durability, scratch resistance, and abrasion resistance. And it is to provide a composite wood flooring material in which a mixed layer of stone powder and PVC is laminated, which can be usefully used as a flooring material as well as an indoor interior material such as a wall surface and a ceiling due to easy processability.

Description

석분과 PVC 혼합층이 적층된 복합 목질바닥재{Composite wood flooring with a mixed layer of stone powder and PVC laminated}Composite wood flooring with a mixed layer of stone powder and PVC laminated}

본 발명은 복합 목질바닥재에 관한 것으로, 보다 상세하게는, 석분과 PVC를 혼합하여 열압 가공한 베이스층과 인쇄층을 라미네이팅하여 목질층의 상부에 접착시켜서 바닥재는 물론 벽면 등의 실내 인테리어 소재로 사용할 수 있는, 석분과 PVC의 혼합층이 적층된 복합 목질바닥재에 관한 것이다.The present invention relates to a composite wood flooring material, and more particularly, to be used as a flooring material as well as an indoor interior material such as a wall surface by laminating a base layer and a printing layer obtained by hot-pressing a mixture of stone powder and PVC and bonding them to the top of the wood layer. It relates to a composite wood flooring material in which a mixed layer of stone dust and PVC is laminated.

현재 시판 중인 목질바닥재는 자연적인 질감을 느낄 수 있음과 동시에 친환경적인 특성을 함께 가지고 있으므로 주택, 보육시설 및 상업시설 등에서 폭넓게 사용되고 있다. 이러한 치장 목질바닥재의 표면 재료는 저압 열경화성 수지 함침지(LPL)와 고압 열경화성 수지 함침지(HPL)가 있는데, 이는 종이를 열경화성 수지에 함침시킨 후 건조시키고 여러 장을 겹쳐 고온 고압으로 라미네이팅하면, 마치 판재와 같이 경화되어 합판에 접착된다.Wood flooring currently on the market is widely used in houses, childcare facilities and commercial facilities because it has a natural texture and at the same time has eco-friendly characteristics. The surface materials of these decorative wooden flooring materials include low pressure thermosetting resin impregnated paper (LPL) and high pressure thermosetting resin impregnated paper (HPL), which are made by impregnating paper with thermosetting resin, drying it, and laminating multiple sheets at high temperature and high pressure. It hardens like a sheet material and adheres to the plywood.

이와 같은 치장 목질바닥재는 자연질감은 잘 구현되지만, 유지관리 및 표면 내구성적인 측면에서는 매우 취약한 단점이 있다. 즉 목질층 상부에 수지층만 접착된 구조이므로 바닥에 경량의 물체가 낙하하더라도 표면 스크래치와 같은 긁힘과 손상으로 이어지게 된다. 이와 같은 문제가 발생한 후 계속 사용할 경우 손상된 부분에 추가 손상이 발생하여 하부 목질층으로 수분 등이 침투할 뿐만 아니라 스크래치가 난 부분에 오염물질이 쌓이면서 고착되어 결국 바닥재 전체를 교체해야 하는 문제가 발생하기 때문에 유지 관리에 많은 문제가 있다.Such decorative wood flooring has a well-implemented natural texture, but has a very weak disadvantage in terms of maintenance and surface durability. That is, since only the resin layer is attached to the top of the wood layer, even if a lightweight object falls on the floor, it leads to scratches and damage such as surface scratches. If such a problem occurs and continues to be used, additional damage occurs in the damaged area, and moisture penetrates into the lower wooden layer, and contaminants accumulate and adhere to the scratched area, resulting in the problem of having to replace the entire flooring material. Because of this, there are many problems with maintenance.

상기와 같은 문제를 해결하기 위하여 특허등록 제1104149호 "에틸렌비닐아세테이트 및 하이드록시아크릴레이트를 포함하는 바닥재의 제조방법 및 그에 의해 제조된 바닥재"와 같은 기술이 출현했는데, 상기 특허는 바닥재에 에틸렌비닐아세테이트(EVA)와 하이드록시아크릴레이트를 적절히 배합하여 바닥재의 균열을 방지하고 연성 및 복원력과 강도를 갖게 하는 기술이다. 또, 특허등록 제1555854호 "에틸렌비닐아세테이트를 이용한 복합 바닥재"는 에틸렌비닐아세테이트(EVA)를 사용함으로써 유해물질을 발산하지 않는 무독성 친환경 바닥재에 관한 기술이다.In order to solve the above problems, a technology such as Patent Registration No. 1104149 "Method for Manufacturing Flooring Materials Containing Ethylene Vinyl Acetate and Hydroxyacrylate and Flooring Materials Made Thereby" has appeared. It is a technology that properly mixes acetate (EVA) and hydroxyacrylate to prevent cracking of flooring and to have ductility, resilience and strength. In addition, Patent Registration No. 1555854 "Composite Flooring Using Ethylene Vinyl Acetate" is a technology related to non-toxic and eco-friendly flooring that does not emit harmful substances by using ethylene vinyl acetate (EVA).

하지만, 상기 특허는 EVA와 하이드록시아크릴레이트 또는 폴리우레탄을 배합하여 제조한 자체를 바닥재로 사용하기 때문에 PVC 바닥재가 갖는 최대 단점인 낮은 경도와 온도변화에 따른 수축 팽창으로 인하여 형태 변형이 생기면서 발생하게 되는 하자와, 바닥재의 표면이 긁히거나 흠집에 저항하는 내스크래치성이 취약하다는 문제가 있고, 타일과 같은 느낌이 전혀 없기 때문에 벽체나 천장 등의 실내용 인테리어 소재로는 전혀 사용할 수 없다는 문제가 있다.However, since the patent uses EVA and hydroxyacrylate or polyurethane itself as a flooring material, the biggest disadvantage of PVC flooring is low hardness and deformation due to shrinkage and expansion due to temperature change. There is a problem that the surface of the floor is scratched or scratch resistance is weak, and because it does not have the same feeling as a tile, it cannot be used as an indoor interior material such as a wall or ceiling. there is.

본 발명은 상기와 같은 문제를 해결하기 위하여 안출된 것으로, 본 발명의 목적은, 석분과 PVC를 혼합하여 열압 가공한 베이스층과 다양한 문양이 인쇄된 PVC 전사지 인쇄층을 라미네이팅한 다음 목질층의 상부에 접착시켜서 타일과 같은 느낌을 주면서 표면내구성, 내긁힘성, 내마모성 및 가공성이 용이하여 바닥재는 물론 벽면과 천장 등의 실내 인테리어 소재로 유용하게 사용할 수 있는, 석분과 PVC 혼합층이 적층된 복합 목질바닥재를 제공하기 위한 것이다.The present invention has been made to solve the above problems, and an object of the present invention is to laminate a base layer obtained by hot-pressing a mixture of stone powder and PVC and a PVC transfer paper printing layer on which various patterns are printed, and then laminate the top of the wood layer. Composite wood flooring laminated with a mixed layer of stone dust and PVC, which can be used as a flooring material as well as an indoor interior material such as walls and ceilings due to its surface durability, scratch resistance, abrasion resistance, and easy processability while giving a tile-like feel when adhered to. is to provide

본 발명에 따른 석분과 PVC 혼합층이 적층된 복합 목질바닥재는, 석분과 PVC 수지가 혼합되어 압출 및 압연공정을 거치면서 열압 가공하여 제조된 베이스층; PVC 시트 표면에 인쇄층이 형성되어, 상기 베이스층의 상부에 라미네이팅되면서 접착되어 베이스층과 일체로 형성되게 되는 PVC 전사지 인쇄층; 상기 PVC 전사지 인쇄층 상부에 코팅된 UV 코팅층; 최하층에 위치하게 되고, 일체화 된 상기 베이스층과 PVC 전사지 인쇄층 및 UV 코팅층이 상부에 접착되게 되는 목질층을 포함하여 구성된 것을 특징으로 한다.The composite wood flooring material in which the stone powder and PVC mixed layer is laminated according to the present invention includes a base layer prepared by mixing stone powder and PVC resin and hot-pressing through extrusion and rolling processes; A PVC transfer paper printed layer formed on the surface of the PVC sheet, laminated and adhered to the base layer and integrally formed with the base layer; a UV coating layer coated on top of the PVC transfer paper printing layer; It is located on the lowest layer and is characterized by comprising a wood layer to which the base layer, the PVC transfer paper printing layer and the UV coating layer integrated thereon are adhered.

바람직하게는, 베이스층과 PVC 전사지 인쇄층 및 UV 코팅층을 일체화시키는 공정은, 석분, PVC 수지, 가소제, 안정제 및 충진제를 혼합하고 교반시키는 원료 배합 및 교반 단계; 교반된 배합물을 압출기에 투입하고 열을 가해 겔(gel)화시켜, 카렌더롤(calender roll) 유닛에 투입하여 일정 두께와 폭으로 압축하여 베이스층을 시트 형상으로 만드는 압출 및 압연 단계; 상기 압출 및 압연단계에서 만든 베이스층의 시트 상부에 PVC 전사지 인쇄층이 위치하도록 하여 접착시키는 라미네이팅 단계; 라미네이팅된 시트를 냉각수로 냉각시키는 1차냉각 단계; 1차냉각된 시트의 상부 표면에 UV 도료를 도포하여 코팅한 후 경화시키는 UV 코팅 및 경화 단계; 일정 길이로 컷팅하여 가(假)절단하는 컷팅 단계; 컷팅된 시트를 수조에 넣고 열을 가한 다음, 저온 냉각수로 냉각시키는 가온 및 2차냉각 단계; 절단기를 사용하여 제품 사양에 맞춰 일정 길이와 폭으로 재단하는 재단 단계를 거쳐서 베이스층과 PVC 전사지 인쇄층 및 UV 코팅층이 일체로 제조된다.Preferably, the process of integrating the base layer, the PVC transfer paper printing layer, and the UV coating layer includes a raw material mixing and stirring step of mixing and stirring stone dust, PVC resin, plasticizer, stabilizer, and filler; An extrusion and rolling step of putting the stirred mixture into an extruder and applying heat to gel it, putting it into a calender roll unit and compressing it to a certain thickness and width to form a base layer into a sheet shape; A laminating step of bonding the PVC transfer paper printing layer to a position on top of the sheet of the base layer made in the extrusion and rolling steps; A first cooling step of cooling the laminated sheet with cooling water; A UV coating and curing step of applying and curing UV paint on the upper surface of the primary cooled sheet; A cutting step of cutting to a certain length and tentatively cutting; A heating and secondary cooling step of putting the cut sheet in a water bath, applying heat, and then cooling it with low-temperature cooling water; The base layer, the PVC transfer paper printing layer, and the UV coating layer are integrally manufactured through a cutting step of cutting to a certain length and width according to product specifications using a cutter.

바람직하게는, 가온 및 2차냉각 단계는, 일정 길이로 컷팅된 제품을 75∼85℃의 온탕 수조를 이용하여 제품에 고열로 열을 가한 다음, 35∼45℃의 중탕 수조를 이용하여 제품에 저열로 열을 가한 다음, 25∼35℃의 냉탕 수조를 이용하여 저온의 냉각수로 제품을 냉각시키는 일련의 공정을 순차적으로 거치면서 진행된다.Preferably, in the heating and secondary cooling step, the product cut to a certain length is heated with high heat using a hot water bath at 75 to 85 ° C. It proceeds sequentially through a series of processes of applying heat with low heat and then cooling the product with low-temperature cooling water using a cold water bath at 25-35 ° C.

바람직하게는, 라미네이팅 단계가 끝난 후 시트의 표면에 엠보싱을 형성하는 엠보싱 단계를 더 거친 다음 1차냉각 단계를 실시한다.Preferably, after the laminating step is completed, an embossing step of forming an embossing on the surface of the sheet is further performed, followed by a primary cooling step.

바람직하게는, 베이스층은, 석분 60∼75중량부; PVC 수지 25∼40중량부; 가소제 0.5∼1중량부; 안정제 1∼4중량부; 충진제 2∼5중량부를 혼합하여 압출 및 압연공정을 통해 일정 두께로 형성된다.Preferably, the base layer contains 60 to 75 parts by weight of stone powder; 25 to 40 parts by weight of PVC resin; 0.5 to 1 part by weight of a plasticizer; 1 to 4 parts by weight of a stabilizer; 2 to 5 parts by weight of the filler are mixed and formed into a certain thickness through extrusion and rolling processes.

본 발명에 따른 복합 목질바닥재는, 석분과 PVC 수지를 혼합하여 열압 가공한 베이스층과 PVC 전사지 인쇄층을 라미네이팅하여 일체화시킨 후 목질층의 상부에 접착시킨 구조의 제품이기 때문에 석분으로 인하여 타일과 같은 느낌을 주면서 표면강도가 강하므로 표면내구성, 내긁힘성 및 내마모성이 우수함은 물론 가공이 용이하여 전문 절단기를 사용하지 않고 일반 톱으로 절단이 가능하므로, 바닥은 물론 벽면이나 천장 등의 실내 인테리어에 있어서 최근 트렌드인 사용자 자신이 제품을 직접 구입하여 시공하는 DIY(Do it yourself) 제품으로 유용하게 사용할 수 있다.Since the composite wood flooring material according to the present invention is a product of a structure in which stone powder and PVC resin are mixed and hot-pressed, a base layer and a PVC transfer paper printing layer are laminated and integrated, and then bonded to the top of the wood layer, As the surface strength is strong, surface durability, scratch resistance and abrasion resistance are excellent, and processing is easy, so it can be cut with a general saw without using a professional cutter. It can be usefully used as a DIY (Do it yourself) product, which is a recent trend, in which the user himself purchases and installs the product.

도 1은 본 발명에 따른 복합 목질바닥재의 단면을 도시한 단면도이다.
도 2는 복합 목질바닥재 실물 샘플의 단면을 촬영한 사진이다.
도 3은 베이스층과 인쇄층 및 코팅층을 일체화시켜 제조하는 공정을 개략적으로 나타낸 플로우챠트이다.1 is a cross-sectional view showing a cross section of a composite wood flooring material according to the present invention.
2 is a photograph of a cross section of a real sample of a composite wood flooring material.
3 is a flowchart schematically showing a manufacturing process by integrating a base layer, a printing layer, and a coating layer.

본 발명에 따른 복합 목질바닥재의 기술적 특징은, 석분과 PVC 수지가 혼합된 베이스층과 PVC 전사지 인쇄층을 라미네이팅하여 목질층 상부에 접착시킴으로써 석분으로 인하여 타일과 같은 느낌을 주면서 가공성이 용이하여 바닥재와 실내 인테리어용 DIY 제품으로 유용하게 사용할 수 있게 했다는 점이다.The technical feature of the composite wood flooring material according to the present invention is to laminate a base layer in which stone powder and PVC resin are mixed and a PVC transfer paper printing layer and adhere them to the top of the wood layer, giving a tile-like feeling due to the stone powder and easy workability, so that the flooring material and The point is that it can be used usefully as a DIY product for interior decoration.

본 발명에 따른 복합 목질바닥재(10)는 최하층에 목질층(11)이 위치하고, 베이스층(12)과 PVC 전사지 인쇄층(13) 및 UV 코팅층(14)이 순차적으로 적층되어 일체화된 시트가 접착제에 의해 목질층(11) 상부에 접착되어 구성된다.In the composite wood flooring 10 according to the present invention, the wood layer 11 is located on the lowermost layer, and the base layer 12, the PVC transfer paper printing layer 13, and the UV coating layer 14 are sequentially laminated to form an integrated sheet with an adhesive. It is configured by being adhered to the top of the wood layer 11 by.

목질층(11)은 바닥재의 최하층에 위치하게 되고, 단판(veneer)을 적층시켜 만든 합판, 섬유판, OSB 합판, 천연목재 등 목질계 보드는 어느 것이나 사용할 수 있으며, 이와 같은 목질층(11)이 바닥재의 하부에 위치하기 때문에 바닥재를 부착 또는 고정시킬 수 있는 수단을 장착할 수 있으므로 벽면이나 천장 등에도 시공하기가 용이하다.The wood layer 11 is located at the lowest layer of the flooring material, and any wood-based board such as plywood, fiberboard, OSB plywood, natural wood, etc. made by laminating veneers can be used, and such a wood layer 11 Since it is located at the bottom of the flooring material, a means for attaching or fixing the flooring material can be installed, so it is easy to install on a wall or ceiling.

베이스층(12)은 석분과 PVC 수지(resin)가 혼합되어 압출 및 압연공정을 거치면서 열압 가공하여 시트 형상으로 제조된 것인데, 구체적으로는 석분 60∼75중량부, PVC 수지(resin) 25∼40중량부, 가소제 0.5∼1중량부, 안정제 1∼4중량부, 충진제(필러) 2∼5중량부를 혼합하여 압출 및 압연공정을 통해 일정 두께로 시트 형상으로 형성된 층이다.The base layer 12 is prepared in the form of a sheet by hot-pressing a mixture of stone powder and PVC resin through extrusion and rolling processes, specifically, 60 to 75 parts by weight of stone powder and 25 to 75 parts by weight of PVC resin. 40 parts by weight, 0.5 to 1 part by weight of a plasticizer, 1 to 4 parts by weight of a stabilizer, and 2 to 5 parts by weight of a filler (filler) are mixed and formed into a sheet shape with a certain thickness through an extrusion and rolling process.

석분은 60∼75중량부를 혼합하는데, 60중량부 보다 적게 혼합하면 석분의 양이 너무 적에서 바닥재가 타일과 같은 느낌을 줄 수 없으며, 75중량부 보다 많이 혼합하면 석분을 결합시키는 접착제 역할을 하는 PVC 수지의 양이 상대적으로 적게 혼합되기 때문에 사용중 베이스층(12)에 균열이 잘 생기거나 깨져서 파손되기 쉽다는 단점이 있다. 석분은 채석장에서 발생하는 화강암, 현무암, 대리석, 섬록암 등의 석분 슬러지를 건조시켜 재활용 함으로써 환경관리 비용과 석분 처리 비용을 절감할 수 있고, 석분의 크기는 50∼150매쉬 정도의 크기가 적절하다.Stone powder is mixed in 60 to 75 parts by weight. If less than 60 parts by weight is mixed, the amount of stone powder is too small to give the flooring a tile-like feeling, and if mixed more than 75 parts by weight, it acts as an adhesive to bind stone powder Since the amount of PVC resin is mixed relatively small, there is a disadvantage in that the base layer 12 is easily damaged due to cracks or cracks during use. Stone dust can reduce environmental management costs and stone dust disposal costs by drying and recycling stone dust sludge such as granite, basalt, marble, diorite, etc. generated in a quarry, and the size of stone dust is about 50 to 150 mesh.

가소제는 프탈레이트계 또는 비프탈레이트계 가소제 등을 사용 가능하고, 그 종류가 제한되지는 않는다. 안정제는 조성물의 안정성 향상을 위한 것으로, 칼슘, 아연, 주석, 마그네슘, 나트륨 및 칼륨과 같은 금속의 무기염 및 유기염으로 이루어진 군에서 선택된 1종 이상일 수 있다. 충진제(필러)는 무기 충진제 또는 유기 충진제가 모두 사용 가능하다.As the plasticizer, a phthalate-based or non-phthalate-based plasticizer may be used, and the type is not limited. The stabilizer is for improving the stability of the composition, and may be at least one selected from the group consisting of inorganic and organic salts of metals such as calcium, zinc, tin, magnesium, sodium and potassium. As the filler (filler), both inorganic fillers and organic fillers can be used.

PVC 전사지 인쇄층(13)은 PVC 시트의 표면에 다양한 질감 및 무늬가 인쇄되어 바닥재로 깔리거나 벽체 등에 인테리어 소재로 시공된 공간의 다양한 분위기를 연출할 수 있게 하는 표면치장층으로, 베이스층(12)과는 접착제에 의해 일체로 접착되게 된다. 인쇄층은 0.1∼0.3mm의 두께를 갖는 것이 바람직한데, 인쇄층의 두께가 0.1mm 미만일 경우 인쇄가 어려워질 수 있으며, 인쇄층의 두께가 0.3mm를 초과할 경우에는 시트 제조 비용의 상승을 가져올 수 있다. PVC 전사지 인쇄층(13)과 베이스층(12)은 PVC라는 동질(同質)의 재질을 사용하기 때문에 열을 가해서 접착시키면 잘 접착될 뿐만 아니라 접착된 후에는 쉽게 분리되지 않게 된다.The PVC transfer paper printing layer 13 is a surface decoration layer that allows various textures and patterns to be printed on the surface of the PVC sheet to create various atmospheres of spaces laid as flooring or constructed as interior materials such as walls. The parts are integrally bonded together with an adhesive. The print layer preferably has a thickness of 0.1 to 0.3 mm. If the thickness of the print layer is less than 0.1 mm, printing may be difficult, and if the thickness of the print layer exceeds 0.3 mm, the sheet manufacturing cost may increase. can Since the PVC transfer paper printing layer 13 and the base layer 12 use a material of the same quality as PVC, when they are bonded by applying heat, they adhere well and are not easily separated after they are bonded.

UV 코팅층(14)은 PVC 전사지 인쇄층(13) 상부에 코팅된 층인데, UV 코팅층(14)은 바닥재 표면의 내오염성과 내스크러치성을 확보하고 PVC 전사지 인쇄층(13)의 PVC로부터 분출되는 유해물질을 차단하며, 정전기 방지 등 다양한 기능과 용도에 맞는 도료를 선택한다.The UV coating layer 14 is a layer coated on the top of the PVC transfer paper printing layer 13, and the UV coating layer 14 secures stain resistance and scratch resistance of the surface of the flooring material and ejects from the PVC of the PVC transfer paper printing layer 13. Choose a paint suitable for various functions and uses, such as blocking harmful substances and preventing static electricity.

베이스층(12)과 PVC 전사지 인쇄층(13) 및 UV 코팅층(14)을 일체화시킨 시트를 제조하는 공정을 간략히 설명하면, 석분, PVC 수지, 가소제, 안정제 및 충진제를 혼합하고 교반시키는 원료 배합 및 교반 단계(S1); 교반된 배합물을 압출기에 투입하고 열을 가해 겔(gel)화시켜, 카렌더롤(calender roll) 유닛에 투입하여 일정 두께와 폭으로 압축하여 베이스층을 시트 형상으로 만드는 압출 및 압연 단계(S2); 상기 압출 및 압연단계에서 만든 베이스층의 시트 상부에 PVC 전사지 인쇄층이 위치하도록 하여 두 시트를 접착시키는 라미네이팅 단계(S3); 라미네이팅된 시트를 냉각수로 냉각시키는 1차냉각 단계(S4); 1차냉각된 시트의 상부 표면에 UV 도료를 도포하여 코팅한 후 경화시키는 UV 코팅 및 경화 단계(S5); 일정 길이로 컷팅하여 가(假)절단하는 컷팅 단계(S6); 컷팅된 시트를 수조에 넣고 열을 가한 다음, 저온 냉각수로 냉각시키는 가온 및 2차냉각 단계(S7); 절단기를 사용하여 제품 사양에 맞춰 일정 길이와 폭으로 재단하는 재단 단계(S8)를 거쳐서 베이스층(12)과 PVC 전사지 인쇄층(13) 및 UV 코팅층(14)이 두께 2∼4㎜의 일체화된 시트 형태로 제조된다.Briefly explaining the process of manufacturing a sheet in which the base layer 12, the PVC transfer paper printing layer 13, and the UV coating layer 14 are integrated, mixing and stirring stone powder, PVC resin, plasticizer, stabilizer and filler, and Stirring step (S1); An extrusion and rolling step (S2) of putting the stirred mixture into an extruder and applying heat to gel it, then putting it into a calender roll unit and compressing it to a certain thickness and width to form a base layer into a sheet shape; A laminating step (S3) of adhering the two sheets by placing a printed PVC transfer paper layer on top of the sheet of the base layer made in the extruding and rolling steps; A first cooling step (S4) of cooling the laminated sheet with cooling water; A UV coating and curing step (S5) of applying and curing UV paint on the upper surface of the primary cooled sheet; Cutting step (S6) of cutting to a certain length and tentatively cutting; A heating and secondary cooling step (S7) of putting the cut sheet in a water bath, applying heat, and then cooling it with low-temperature cooling water; Through the cutting step (S8) of cutting to a certain length and width according to product specifications using a cutter, the base layer 12, the PVC transfer paper printing layer 13, and the UV coating layer 14 are integrated with a thickness of 2 to 4 mm. Manufactured in sheet form.

여기서 시트의 상면에 올록볼록한 엠보싱을 형성하기 위해서는 라미네이팅 단계(S3)가 끝난 후, 롤(roll)의 표면에 엠보싱이 형성된 유닛에서 시트의 표면에 엠보싱을 형성하는 엠보싱 단계를 더 거친 다음 1차냉각 단계(S4)를 실시할 수도 있다.Here, in order to form a convex embossing on the upper surface of the sheet, after the laminating step (S3) is finished, the embossing step of forming the embossing on the surface of the sheet in the unit in which the embossing is formed on the surface of the roll is further followed by primary cooling Step S4 may be performed.

라미네이팅 단계(S3)에서는 베이스층(12)과 PVC 전사지 인쇄층(13)이 상하로 배치된 히팅드럼(heating drum)을 각각 통과한 다음 열과 압력이 가해지면서 라미네이팅되어 일체로 된 시트가 만들어지게 된다.In the laminating step (S3), the base layer 12 and the PVC transfer paper printing layer 13 pass through heating drums arranged vertically, and then laminated while applying heat and pressure to form an integral sheet. .

1차냉각 단계(S4)에서는 라미네이팅된 시트를 25∼35℃의 냉탕 수조를 이용하여 저온의 냉각수로 제품을 냉각시킨 후 건조시키는 공정을 거쳐서 진행되는데, S4 단계는 UV 코팅을 하기 전에 시트 표면을 식혀줌으로써 UV 도료의 광도 조절 및 UV 경화를 용이하게 할 수 있도록 하기 위한 공정이다.In the primary cooling step (S4), the laminated sheet is cooled with low-temperature cooling water using a cold water bath at 25 to 35 ° C, and then the product is dried. This is a process for facilitating light intensity control and UV curing of UV paint by cooling.

가온 및 2차냉각 단계(S7)는 S2 및 S3 공정을 거치면서 시트 형성시 발생한 열에 의해 PVC의 가로 및 세로방향의 수축 및 팽창이 일어나면서 생긴 응력(스트레스)을 풀어줌으로써 제품의 변형(직각도 등)을 방지하기 위한 공정으로, 제품의 하자 발생을 줄이고 품질 향상을 위한 매우 중요한 공정이다.The heating and secondary cooling step (S7) releases the stress (stress) caused by shrinkage and expansion of PVC in the horizontal and vertical directions by the heat generated during sheet formation through the S2 and S3 processes, thereby reducing the deformation (perpendicularity) of the product etc.), it is a very important process for reducing product defects and improving quality.

구체적으로는, 일정 길이로 컷팅된 제품을 75∼85℃의 온탕 수조를 이용하여 제품에 고열로 열을 가한 다음, 35∼45℃의 중탕 수조를 이용하여 제품에 저열로 열을 가한 다음, 25∼35℃의 냉탕 수조를 이용하여 저온의 냉각수로 제품을 냉각시키는 일련의 공정을 순차적으로 거치게 하면서 진행하는 것이 바람직하다. 하나의 수조에서 한번에 냉각시키는 것보다는 상기와 같이 온탕, 중탕, 냉탕 수조를 순차적으로 거치면서 응력(스트레스)을 점진적으로 풀어주어야 변형을 방지하는데 효과적이다. 각 수조에서는 일정 속도로 통과시키면서 공정이 진행되며 각 수조마다 20∼30초 정도 소요된다.Specifically, the product cut to a certain length is heated with high heat using a hot water bath at 75 to 85 ° C, and then heated with low heat using a water bath at 35 to 45 ° C. It is preferable to proceed while sequentially passing through a series of processes of cooling the product with low-temperature cooling water using a cold water bath at ~35 ° C. Rather than cooling at once in one water bath, it is effective to prevent deformation by gradually releasing the stress (stress) while sequentially passing through the hot water bath, the hot water bath, and the cold water bath as described above. In each tank, the process proceeds while passing at a constant speed, and it takes about 20 to 30 seconds for each tank.

이상의 설명은 본 발명을 예시적으로 설명한 것이고, 명세서에 게시된 실시예는 본 발명의 기술사상을 한정하기 위한 것이 아니라 설명하기 위한 것이므로 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 본 발명의 기술사상을 벗어나지 않는 범위에서 다양한 수정 및 변형이 가능할 것이다. 그러므로 본 발명의 보호범위는 청구범위에 기재된 사항에 의해 해석되고, 그와 균등한 범위 내에 있는 기술적 사항도 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.The above description is illustrative of the present invention, and the embodiments disclosed in the specification are not intended to limit the technical idea of the present invention, but are for explanation. Various modifications and variations will be possible without departing from the technical idea of Therefore, the protection scope of the present invention should be construed by the matters described in the claims, and technical matters within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10 : 복합 목질바닥재
11 : 목질층
12 : 베이스층
13 : PVC 전사지 인쇄층
14 : UV 코팅층10: composite wood flooring
11: wood layer
12: base layer
13: PVC transfer paper printing layer
14: UV coating layer

Claims (6)

석분과 PVC 수지가 혼합되어 압출 및 압연공정을 거치면서 열압 가공하여 제조된 베이스층;
PVC 시트 표면에 인쇄층이 형성되어, 상기 베이스층의 상부에 라미네이팅되면서 접착되어 베이스층과 일체로 형성되게 되는 PVC 전사지 인쇄층;
상기 PVC 전사지 인쇄층 상부에 코팅된 UV 코팅층;
최하층에 위치하게 되고, 일체화 된 상기 베이스층과 PVC 전사지 인쇄층 및 UV 코팅층이 상부에 접착되게 되는 목질층;
을 포함하여 구성되고,
상기 베이스층과 PVC 전사지 인쇄층 및 UV 코팅층은,
석분, PVC 수지, 가소제, 안정제 및 충진제를 혼합하고 교반시키는 원료 배합 및 교반 단계;
교반된 배합물을 압출기에 투입하고 열을 가해 겔(gel)화시켜, 카렌더롤 (calender roll) 유닛에 투입하여 일정 두께와 폭으로 압축하여 시트 형상으로 베이스층을 만드는 압출 및 압연 단계;
상기 압출 및 압연단계에서 만든 베이스층 시트의 상부에 PVC 전사지 인쇄층이 위치하도록 하여 접착시키는 라미네이팅 단계;
라미네이팅된 시트를 냉각수로 냉각시키는 1차냉각 단계;
1차냉각된 시트의 상부 표면에 UV 도료를 도포하여 코팅한 후 경화시키는 UV 코팅 및 경화 단계;
일정 길이로 컷팅하여 가(假)절단하는 컷팅 단계;
컷팅된 시트를 수조에 넣고 열을 가한 다음, 저온 냉각수로 냉각시키는 가온 및 2차냉각 단계;
절단기를 사용하여 제품 사양에 맞춰 일정 길이와 폭으로 재단하는 재단 단계;
를 거쳐서 베이스층과 PVC 전사지 인쇄층 및 UV 코팅층이 일체로 제조되며,
상기 1차냉각 단계는, 25∼35℃의 냉탕 수조를 이용하여 저온의 냉각수로 제품을 냉각시킨 후 건조시키는 공정을 거치게 되며,
상기 가온 및 2차냉각 단계는, 일정 길이로 컷팅된 제품을 75∼85℃의 온탕 수조를 이용하여 제품에 고열로 열을 가한 다음, 35∼45℃의 중탕 수조를 이용하여 제품에 저열로 열을 가한 다음, 25∼35℃의 냉탕 수조를 이용하여 저온의 냉각수로 제품을 냉각시키는 일련의 공정을 순차적으로 거치면서 진행되는 것을 특징으로 하는 석분과 PVC 혼합층이 적층된 복합 목질바닥재.
A base layer prepared by hot-pressing a mixture of stone powder and PVC resin through extrusion and rolling processes;
A PVC transfer paper printed layer formed on the surface of the PVC sheet, laminated and adhered to the base layer and integrally formed with the base layer;
a UV coating layer coated on top of the PVC transfer paper printing layer;
A wood layer located on the lowest layer and having the integrated base layer, PVC transfer paper printing layer, and UV coating layer adhered thereon;
It is composed of,
The base layer, the PVC transfer paper printing layer and the UV coating layer,
Raw material mixing and stirring step of mixing and stirring stone dust, PVC resin, plasticizer, stabilizer and filler;
An extrusion and rolling step of putting the stirred mixture into an extruder and applying heat to gel it, putting it into a calender roll unit and compressing it to a certain thickness and width to make a base layer in a sheet shape;
A laminating step of bonding the PVC transfer paper printing layer to a position on top of the base layer sheet made in the extrusion and rolling step;
A first cooling step of cooling the laminated sheet with cooling water;
A UV coating and curing step of applying and curing UV paint on the upper surface of the primary cooled sheet;
A cutting step of cutting to a certain length and tentatively cutting;
A heating and secondary cooling step of putting the cut sheet in a water bath, applying heat, and then cooling it with low-temperature cooling water;
A cutting step of cutting to a predetermined length and width according to product specifications using a cutter;
Through, the base layer, the PVC transfer paper printing layer, and the UV coating layer are integrally manufactured,
In the primary cooling step, the product is cooled with low-temperature cooling water using a cold water bath at 25 to 35 ° C., and then the product is dried.
In the heating and secondary cooling step, the product cut to a certain length is heated with high heat using a hot water bath at 75 to 85 ° C, and then heated with low heat using a water bath at 35 to 45 ° C. A composite wood flooring material in which a mixed layer of stone powder and PVC is laminated, characterized in that it proceeds sequentially through a series of processes of cooling the product with low-temperature cooling water using a cold water bath at 25 to 35 ° C.
 삭제delete 삭제delete 삭제delete 제1항에 있어서,
상기 라미네이팅 단계가 끝난 후 시트의 표면에 엠보싱을 형성하는 엠보싱 단계를 더 거친 다음 1차냉각 단계를 실시하는 것을 특징으로 하는 석분과 PVC 혼합층이 적층된 복합 목질바닥재.
According to claim 1,
After the laminating step is completed, an embossing step of forming an embossing on the surface of the sheet is further performed, followed by a first cooling step.
 제1항에 있어서, 상기 베이스층은,
석분 60∼75중량부;
PVC 수지 25∼40중량부;
가소제 0.5∼1중량부;
안정제 1∼4중량부;
충진제 2∼5중량부;
를 혼합하여 압출 및 압연공정을 통해 일정 두께로 형성된 것을 특징으로 하는 석분과 PVC 혼합층이 적층된 복합 목질바닥재.The method of claim 1, wherein the base layer,
60 to 75 parts by weight of stone powder;
25 to 40 parts by weight of PVC resin;
0.5 to 1 part by weight of a plasticizer;
1 to 4 parts by weight of a stabilizer;
2 to 5 parts by weight of a filler;
A composite wood flooring material in which a mixed layer of stone powder and PVC is laminated, characterized in that it is formed to a certain thickness through an extrusion and rolling process by mixing.
KR1020220087355A 2022-07-15 2022-07-15 Composite wood flooring with a mixed layer of stone powder and PVC laminated KR102550901B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080049433A (en) * 2006-11-30 2008-06-04 주식회사 엘지화학 Shock absorbing flooring having flat surface layer
KR20140117715A (en) * 2013-03-26 2014-10-08 명성산업(주) Natural materials of wood veneer deco tiles and deco tile manufacturing methods
CN104943327A (en) * 2014-03-31 2015-09-30 江苏肯帝亚木业有限公司 Manufacturing method of PVC (polyvinyl chloride) wood plastic plate
CN210970211U (en) * 2019-04-19 2020-07-10 江山欧派门业股份有限公司 Wooden door leaf composite structure and stone plastic panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080049433A (en) * 2006-11-30 2008-06-04 주식회사 엘지화학 Shock absorbing flooring having flat surface layer
KR20140117715A (en) * 2013-03-26 2014-10-08 명성산업(주) Natural materials of wood veneer deco tiles and deco tile manufacturing methods
CN104943327A (en) * 2014-03-31 2015-09-30 江苏肯帝亚木业有限公司 Manufacturing method of PVC (polyvinyl chloride) wood plastic plate
CN210970211U (en) * 2019-04-19 2020-07-10 江山欧派门业股份有限公司 Wooden door leaf composite structure and stone plastic panel

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