KR100236866B1 - Extrusion method of the plastic wood - Google Patents

Extrusion method of the plastic wood Download PDF

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Publication number
KR100236866B1
KR100236866B1 KR1019970019620A KR19970019620A KR100236866B1 KR 100236866 B1 KR100236866 B1 KR 100236866B1 KR 1019970019620 A KR1019970019620 A KR 1019970019620A KR 19970019620 A KR19970019620 A KR 19970019620A KR 100236866 B1 KR100236866 B1 KR 100236866B1
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South Korea
Prior art keywords
cooling
molding
pattern
extrusion
synthetic resin
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KR1019970019620A
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Korean (ko)
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KR970058883A (en
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심효섭
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심효섭
동해산업주식회사
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    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
    • 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
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating

Abstract

본 발명은 합성수지 나무 무늬 압출성형물 제조방법에 관한 것으로, 성형물의 바탕을 이루는 합성수지 바탕재료에, 이 바탕재료와 입도와 색상이 서로 다른 적어도 하나 이상의 합성수지 무늬 재료를 혼합함과 아울러 발포제를 포함한 각종 부재료를 균일하게 혼합하는 혼합단계와; 상기 혼합된 원료를 바탕재료는 액상으로 충분히 용융되고, 무늬재료는 반용융되는 온도로 유지하여 용융 발포시키면서 성형물을 압출하는 압출단계와; 압출 헤드의 주위를 냉각시킴에 의해 성형물의 표면을 냉각 경화시키는 냉각단계를 순차적으로 행함에 의해 나무 무늬의 성형물을 생산하는 것으로 되어 있다.The present invention relates to a method for producing a synthetic resin extrusion molding, comprising a base material formed of a molding material, a base material and at least one synthetic resin pattern material having a different particle size and color, and various materials including a foaming agent. Mixing step of uniformly mixing; An extrusion step of extruding the molding while the base material is sufficiently melted in the liquid phase in the mixed raw material and the pattern material is melted and foamed while maintaining at a temperature at which it is semi-melted; It is supposed that a molded article of wood pattern is produced by sequentially performing a cooling step of cooling and curing the surface of the molded article by cooling the periphery of the extrusion head.

이러한 본 발명은 생산시설 및 생산공정을 간단화할 수 있고, 생산성이 우수할 뿐아니라, 생산비용이 절감되며, 나무 무늬가 매우 자연스러운 고품질의 제품을 제공할 수 있는 효과가 있다.The present invention can simplify the production facility and production process, not only the productivity is excellent, but also the production cost is reduced, there is an effect that can provide a high-quality product with a very natural wood pattern.

Description

합성수지 나무 무늬 압출성형물 제조방법Synthetic resin wood extrusion molding

본 발명은 합성수지 나무 무늬의 압출성형물 제조방법에 관한 것으로, 특히 하나의 압출기를 이용하여 발포 조직의 내부층의 표면에 단단하고 매끄러우며 윤택이 나는 표면층이 형성됨과 아울러 자연스러운 나무 무늬가 형성되는 나무 무늬 성형품을 제조할 수 있게 되는 합성수지 나무 무늬 압출성형물 제조방법을 제공하기 위한 것이다.The present invention relates to a method for producing an extruded molding of a synthetic resin wood pattern, in particular a hard, smooth and glossy surface layer is formed on the surface of the inner layer of the foam using a single extruder, as well as a natural wood pattern An object of the present invention is to provide a method for producing a synthetic resin-patterned extrudate that can produce a molded article.

종래에도 나무 무늬를 가지는 합성수지 압출성형 제품이 보급되어 각종 가구 및 건물의 부자재로서 이용량이 증가되고 있다. 이러한 나무 무늬 성형품을 제조함에 있어서는 합성수지 마스터 비치에 발포제를 혼합하여 압출하면 성형물 전체가 발포되므로, 종래에는 2대의 압출기를 이용하여 각각 별도의 공정에 의해 내부층과 표면층을 형성하고 있다. 즉, 발포 전용 압출기를 이용하여 내부의 발포물을 형성하고 별도의 표면 전용 압출기에 의해 표면층을 형성하여 나무 무늬 성형품을 제조하고 있다.Background Art Conventionally, synthetic resin extrusion products having a tree pattern have been widely used, and the amount of use as auxiliary materials for various furniture and buildings has increased. In manufacturing such wood-patterned molded articles, the whole molded article is foamed by mixing and extruding a foaming agent in a synthetic masterbatch, and conventionally, the inner layer and the surface layer are formed by separate processes using two extruders. That is, a foamed extruder is used to form an internal foam and a surface layer is formed by a separate surface-only extruder to manufacture a wood pattern molded article.

이와 같이 종래에는 2대의 압출기를 이용하며 제조하여야 하므로 제조공정이 복잡하고, 생산성이 떨어지며, 경제성이 매우 불리하게 되는 단점이 있을 뿐아니라, 나무 무늬가 자연스럽게 형성되지 못하여 제품의 미감이 저하되는 문제점이 있었다.As such, the conventional manufacturing process using two extruders has a disadvantage in that the manufacturing process is complicated, the productivity is low, and the economic efficiency is very disadvantageous, and the wood pattern is not naturally formed, thereby reducing the aesthetics of the product. there was.

본 발명은 상기한 바와 같은 종래의 결함 및 문제점을 해소하기 위하여 창안한 것으로, 서로 입도와 색상이 다른 합성수지 원료와 발포제등의 첨가물을 혼합한 합성수지 혼합원료를 하나의 압출기로 압출하면서 압출헤드에서 급냉시켜 내부층은 발포조직으로 되고 표층은 경화광택 조직으로 됨과 아울러 자연스러운 나무 무늬를 갖게 되는 나무 무늬 성형품을 제조할 수 있게 되는 합성수지 나무 무늬 압출성형물 제조방법을 제공하기 위한 것이다.The present invention has been devised to solve the above-mentioned conventional defects and problems, and is rapidly cooled in an extrusion head while extruding a synthetic resin raw material mixed with additives such as a synthetic resin raw material and a different particle size and color with one extruder. The inner layer is a foam structure and the surface layer is a hardened gloss structure, as well as to provide a method for producing a synthetic resin wood pattern extruded molding that can produce a wood pattern molded article having a natural wood pattern.

이와 같은 목적을 달성하기 위하여 본 발명은 성형물의 바탕을 이루는 합성수지 바탕재료에, 이 바탕재료와 입도와 색상이 서로 다른 적어도 하나 이상의 합성수지 무늬 재료를 혼합함과 아울러 발포제를 포함한 각종 부재료를 균일하게 혼합하는 혼합단계와, 상기 혼합된 원료를 바탕재료는 액상으로 충분히 용융되고, 무늬재료는 반용융되는 온도로 유지하여 용융 발포시키면서 성형물을 압출하는 압출단계와, 압출 헤드의 주위를 냉각시킴에 의해 성형물의 표면을 냉각 경화시키는 냉각단계를 포함하여 구성되는 합성수지 나무 무늬 압출성형물 제조방법을 제공한다.In order to achieve the above object, the present invention mixes the base material and at least one synthetic resin pattern material having different particle sizes and colors to the synthetic base material forming the base of the molding, and uniformly mixes various materials including the foaming agent. And a step of extruding the molded product while keeping the mixed raw material in the liquid phase, the base material is sufficiently melted in the liquid phase, and the pattern material is melted and foamed while melt foaming, and by cooling the periphery of the extrusion head. It provides a synthetic resin wood pattern extrusion molding manufacturing method comprising a cooling step of cooling and curing the surface of the.

제1도는 본 발명의 공정을 보인 블록도.1 is a block diagram showing the process of the present invention.

제2도는 본 발명에 적용되는 압출장치 개략도.2 is a schematic view of an extrusion apparatus applied to the present invention.

제3도는 본 발명에 의해 제조된 성형품의 구성을 보인 것으로,Figure 3 shows the configuration of the molded article produced by the present invention,

(a)는 평면도, (b)는 종단면도를 보인 것이다.(a) is a top view, (b) is a longitudinal cross-sectional view.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 압출기 2 : 호퍼1: extruder 2: hopper

3 : 압출헤드 4 : 냉각 유니트3: extrusion head 4: cooling unit

10 : 성형물 11 : 바탕부10: molding 11: base part

12 : 나무 무늬부 13 : 내부층12: wood pattern 13: the inner layer

14 : 표면층 100 : 혼합단계14: surface layer 100: mixing step

200 : 압출단계 300 : 냉각단계200: extrusion step 300: cooling step

이하, 이와 같은 본 발명의 일실시예를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings an embodiment of the present invention as follows.

제1도는 본 발명의 공정을 보인 블록도를 보인 것으로, 이에 도시한 바와 같이, 성형물의 바탕을 이루는 합성수지 바탕재료에, 이 바탕재료와 입도와 색상이 서로 다른 적어도 하나 이상의 합성수지 무늬 재료를 혼합함과 아울러 발포제를 포함한 각종 부재료를 균일하게 혼합하는 혼합단계(100)와, 상기 혼합된 원료를 바탕재료는 액상으로 충분히 용융되고, 무늬 재료는 반용융되는 온도로 유지하여 용융 발포시키면서 성형물을 압출하는 압출단계(200)와, 압출 헤드의 주위를 냉각시킴에 의해 성형물의 표면을 냉각 경화시키는 냉각단계(300)를 행하여 나무 무늬 성형물을 생산하는 것으로 되어 있다.1 is a block diagram showing the process of the present invention, as shown in this, mixing the base material and at least one synthetic resin pattern material having a different particle size and color to the base material of the molding In addition, the mixing step 100 for uniformly mixing the various sub-materials including the foaming agent, and the base material is sufficiently melted in the liquid phase, the pattern material is extruded the molding while maintaining the melt at a temperature that is semi-melted The extrusion step 200 and the cooling step 300 for cooling and hardening the surface of the molding by cooling the periphery of the extrusion head are performed to produce wood-patterned moldings.

상기 무늬 재료는 무색 또는 백색의 마스터 비치에 안료를 혼합하여 형성한 알곡과 같은 입자형 유색 마스터 비치이다. 상기 바탕재료는 무늬 재료에 비하며 수십 내지 수백분의 일 정도로 미세한 분말형 재료이다. 상기 부재료로는 발포제, 안정제, 경화제등이 이용된다.The said pattern material is a granular colored master beach like grains formed by mixing a pigment with a colorless or white master beach. The base material is a fine powder-like material that is tens to hundreds of percent as compared with the pattern material. A foaming agent, a stabilizer, a hardening | curing agent etc. are used as said submaterial.

그리고, 상기 혼합 원료를 압출하는 단계에서 온도는 155℃ 내지 185℃의 범위로 유지된다.And, in the step of extruding the mixed raw material, the temperature is maintained in the range of 155 ℃ to 185 ℃.

상기 냉각단계는 압출 헤드의 선단부에 결합된 수냉식 냉각통에 냉각수를 순환시킴에 의해 성형물(10)의 표면을 급냉하는 과정으로 행하여진다.The cooling step is performed by quenching the surface of the molding 10 by circulating the cooling water in the water-cooled cooling cylinder coupled to the tip of the extrusion head.

제2도는 본 발명에 적용되는 압출장치 개략도를 보인 것으로, 이하, 제2도를 함께 참조하여 설명하면, 상기한 혼합 원료를 압출기(1)의 호퍼(2)에 투입하고 155℃ 내지 185℃의 범위로 가열하여 압출하면, 혼합 원료가 발포되면서 원형 통로를 가지는 압출헤드(3)에서 봉형으로 토출되어 나무 무늬를 가지는 원형봉으로 성형되며, 이와 같이 성형물(10)이 토출되는 때 압출헤드(3)의 선단부에 결합된 냉각 유니트(4)에 냉각수를 순환시켜 압출 헤드(3)를 냉각시킴에 의해 성형물(10)의 표면을 냉각시키던 성형물(10)의 내부는 발포조직을 유지하게 되나 성형물(10)의 표면은 경화되어 치밀하고 매끄러우면서 광택을 발하는 경성광택 조직으로 된다.FIG. 2 is a schematic view of an extrusion apparatus applied to the present invention. Hereinafter, referring to FIG. 2, the above-described mixed raw material is introduced into the hopper 2 of the extruder 1, and the 155 ° C. to 185 ° C. When heated and extruded to a range, the mixed raw material is foamed and discharged in a rod shape from the extrusion head 3 having a circular passage to be formed into a circular rod having a tree pattern, and thus the extrusion head 3 when the molded product 10 is discharged. By cooling the extrusion head 3 by circulating the cooling water in the cooling unit 4 coupled to the distal end of the), the inside of the molding 10, which cooled the surface of the molding 10, maintains the foam structure. The surface of 10) is hardened and becomes a hard gloss tissue that is dense, smooth and glossy.

이와 같이 성형되는 성형물(10)은 합성수지 바탕재료와 무늬 재료의 입자 크기에 따라 무늬가 다르게 표현되며, 무늬 재료는 원료 전체량의 10 내지 30중량%의 범위에서 혼합되고, 표현하고자 하는 나무 무늬에 따라 0.3중량% 비율로 배합율을 변경하여 혼합된다.The molded article 10 is shaped differently according to the particle size of the synthetic resin base material and the pattern material, the pattern material is mixed in the range of 10 to 30% by weight of the total amount of the raw material, and the wood pattern to be expressed Depending on the blending ratio is changed by 0.3% by weight.

제3(a)도는 본 발명에 의해 제조된 성형품의 평면도, 제3(b)도는 종단면도를 보인 것으로, 성형물(10)은 예컨데 연갈색의 바탕부(11)에 색상이 다른 선형 무늬가 불규칙하게 불연속적으로 배열되어 흑갈색의 나무 무늬부(12)가 형성되어 있으며, 발포조직의 내부층(13)과 경질광택 조직의 표면층(14)의 이중층으로 형성된 구성으로 되어 있다.Figure 3 (a) is a plan view of the molded article produced by the present invention, Figure 3 (b) is a longitudinal cross-sectional view, the molded article 10 is a light brown base part 11, the color of the linear pattern is different irregularly The discontinuously arranged black-brown wood pattern part 12 is formed, and it is a structure formed by the double layer of the inner layer 13 of the foam structure, and the surface layer 14 of the hard-gloss structure.

이상에서 설명한 바와 같은 본 발명 합성수지 나무 무늬 압출성형물 제조방법은 서로 입도와 색상이 다른 바탕재료 및 무늬재료, 그리고 발포제및 각종 첨가제를 혼합한후 하나의 압출기로 압출시키면서 압출 헤드를 냉각시키는 매우 간단한 공정에 의해 발포 조직의 내부층의 표면에 단단하고 매끄러우며 윤택이 나는 표면층이 형성됨과 아울러 자연스러운 나무 무늬가 형성되는 나무 무늬 성형품을 제조할 수 있게 되는 이점이 있다.As described above, the method of manufacturing the synthetic resin wood pattern extrusion molding according to the present invention is a very simple process of cooling the extrusion head while extruding with a single extruder after mixing base materials and pattern materials having different particle sizes and colors, blowing agents and various additives. Thereby, there is an advantage in that a hard, smooth and glossy surface layer is formed on the surface of the inner layer of the foamed tissue, and a wood pattern molded article in which a natural wood pattern is formed can be manufactured.

따라서, 본 발명은 생산시설 및 생산공정을 간단화할 수 있고, 생산성이 우수할 뿐아니라, 생산비용이 절감되며, 나무 무늬가 매우 자연스러운 고품질의 제품을 제공할 수 있는 효과가 있다.Therefore, the present invention can simplify the production facility and the production process, not only the productivity is excellent, but also the production cost is reduced, there is an effect that can provide a high-quality product with a very natural wood pattern.

지금까지 본 발명의 실시예에 대하여 설명하였으나 본 발명은 이에 한정되는 것이 아니며, 명세서에 기재되고 청구된 원리의 진정한 정신 및 범위 안에서 수정 및 변경할 수 있는 여러가지 실시형태는 본 발명의 보호 범위에 속하는 것임을 이해하여야 할 것이다.While the embodiments of the present invention have been described so far, the present invention is not limited thereto, and various embodiments which can be modified and changed within the true spirit and scope of the principles described and claimed are within the protection scope of the present invention. You will have to understand.

Claims (4)

성형물의 바탕을 이루는 합성수지 바탕재료에, 이 바탕재료와 입도와 색상이 서로 다른 적어도 하나 이상의 합성수지 무늬 재료를 혼합함과 아울러 발포제를 포함한 각종 부재료를 균일하게 혼합하는 혼합단계와; 상기 혼합된 원료를 바탕재료는 액상으로 충분히 용융되고, 무늬 재료는 반용융되는 온도로 유지하여 용융 발포시키면서 성형물을 압출하는 압출단계와; 압출 헤드의 주위를 냉각시킴에 의해 성형물의 표면을 냉각 경화시키는 냉각단계를 포함하여 구성된 것을 특징으로 하는 합성수지 나무 무늬 압출성형물 제조방법.A mixing step of mixing the base material with at least one synthetic resin pattern material having a different particle size and color, and uniformly mixing various submaterials including a blowing agent with the base material forming the base of the molding; An extrusion step of extruding the molding while the base material is sufficiently melted in the liquid phase in the mixed raw material and the pattern material is melted and foamed while maintaining at a temperature at which it is semi-melted; And a cooling step of cooling and curing the surface of the molding by cooling the periphery of the extrusion head. 제1항에 있어서, 상기 압출단계에서 혼합원료 가열 온도가 155℃ 내지 185℃인 것을 특징으로 하는 합성수지 나무 무늬 압출성형물 제조방법.The method of claim 1, wherein the mixing raw material heating temperature in the extrusion step is 155 ℃ to 185 ℃ synthetic resin wood pattern extrusion molding method. 제1항에 있어서, 상기 냉각단계는 압출 헤드의 선단부에 결합된 수냉식 냉각통에 냉각수를 순환시킴에 의해 행하여 지는 것임을 특징으로 하는 합성수지 나무 무늬 압출성형물 제조방법.The method of claim 1, wherein the cooling step is performed by circulating the cooling water in a water-cooled cooling cylinder coupled to the tip of the extrusion head. 소정 색상의 바탕부에 색상이 다른 선형 무늬가 불규칙하게 불연속적으로 배열되어 흑갈색의 나무 무늬부가 형성됨과 아울러 발포 조직의 내부층과 경질광택 조직의 표면층의 이중층으로 형성되어 구성된 것을 특징으로 하는 합성수지 나무 무늬 압출성형물 제조방법.Synthetic resin tree, characterized in that the linear pattern of different colors arranged irregularly discontinuously arranged on the base of the predetermined color to form a dark brown wood pattern portion and formed of a double layer of the inner layer of the foam tissue and the surface layer of the hard gloss tissue Method of producing a patterned extrusion molding.
KR1019970019620A 1997-05-20 1997-05-20 Extrusion method of the plastic wood KR100236866B1 (en)

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JPS5559935A (en) * 1978-10-30 1980-05-06 Central Glass Co Ltd Method of fabricating synthetic resin foaming body

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JPS5559935A (en) * 1978-10-30 1980-05-06 Central Glass Co Ltd Method of fabricating synthetic resin foaming body

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