KR20030011420A - Lusterless PET vessel manufacturing method and apparatus - Google Patents
Lusterless PET vessel manufacturing method and apparatus Download PDFInfo
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- KR20030011420A KR20030011420A KR1020010046831A KR20010046831A KR20030011420A KR 20030011420 A KR20030011420 A KR 20030011420A KR 1020010046831 A KR1020010046831 A KR 1020010046831A KR 20010046831 A KR20010046831 A KR 20010046831A KR 20030011420 A KR20030011420 A KR 20030011420A
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- Prior art keywords
- pet container
- mold
- raw material
- container
- pet
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 238000000465 moulding Methods 0.000 claims description 20
- 239000000047 product Substances 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 239000011265 semifinished product Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000007664 blowing Methods 0.000 abstract description 5
- 239000003973 paint Substances 0.000 abstract description 5
- 239000002826 coolant Substances 0.000 abstract description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 34
- 239000005020 polyethylene terephthalate Substances 0.000 description 34
- 238000000576 coating method Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010309 melting process Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 239000010726 refrigerant oil Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Classifications
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C2049/4879—Moulds characterised by mould configurations
- B29C2049/4882—Mould cavity geometry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/003—PET, i.e. poylethylene terephthalate
Abstract
Description
본 발명은 무광택 펫트(PET:Polyethylene Terephthalate)용기의 제조방법 및 그 장치에 관한 것으로서, 더욱 상세하게는 무광택 펫트용기의 제조 공정수를 단축시키고, 무광택 펫트용기의 생산원가를 절감시킬 수 있게 하며, 재활용이 가능하게 하여 환경 친화적인 무광택 펫트용기의 제조방법과 장치에 관한 것이다.The present invention relates to a method for manufacturing a polyethylene terephthalate (PET) container and its apparatus, and more particularly, to shorten the manufacturing process of the matte PET container, and to reduce the production cost of the matte PET container, The present invention relates to a method and apparatus for manufacturing a matte PET container which is recyclable and environmentally friendly.
종래에 있어서 무광택 펫트용기의 제조방법은 첨부된 도면 도 1 에 도시되는 바와 같이, 원료에 포함된 수분을 제거시키는 건조공정(1)과, 건조된 원료를 용융시키는 용융공정(2)과, 용융된 원료를 예비금형(30)에 주입시켜 반제품(PREFORM)(35)을 성형시키는 제 1성형공정(3)과, 반제품의 성형품(35)을 본 금형(40)에 장입시키고 성형품의 내부로 고압의 에어를 불어넣어 펫트용기(45)를 성형시키는 제 2성형공정(4)과, 성형이 완료된 펫트용기(45)를 냉각시키는 냉각공정(5)과, 냉각이 완료된 펫트용기(45)를 금형(40)으로부터 인출시키는 인출공정(6)과, 성형이 완료된 펫트용기(45)의 표면에 무광택의 도료를 도포하여 광택을 제거하는 유브이(UV)코팅공정(7)을 거쳐 무광택의 펫트용기를 제조하는 것이다.In the related art, a method for manufacturing a matte PET container includes a drying step (1) for removing moisture contained in a raw material, a melting step (2) for melting a dried raw material, and melting, as shown in FIG. The first molding process 3 for injecting the prepared raw material into the preliminary mold 30 to form the semi-finished product 35, and the molded product 35 of the semi-finished product is charged into the mold 40, and the high pressure is introduced into the molded product. A second molding process 4 for blowing the PET container 45 by blowing air into the air, a cooling process 5 for cooling the PET container 45 in which the molding is completed, and a PET container 45 in which the cooling is completed. A matte PET container is passed through a drawing process 6 for drawing out from 40 and a UV coating process 7 for removing gloss by applying a matte paint on the surface of the completed PET container 45. To manufacture.
성형이 완료된 펫트용기(45)를 냉각시키는 냉각공정에서 사용되는 냉매는 물이며, 물의 온도는 대략 10℃ 정도로 금형(40)의 내부를 순환하면서 성형이 완료된 펫트용기(45)를 냉각시키게 되는 것이다.Refrigerant used in the cooling process for cooling the PET container 45 is completed is water, the temperature of the water is to cool the PET container 45 is completed while circulating the inside of the mold 40 to about 10 ℃. .
이상에서와 같이 무광택의 펫트용기(45)를 제조하기 위한 종래의 방법으로는펫트용기(45)의 성형을 완료한 후 별도로 유브이 코팅공정(7)을 거쳐야 하므로 제조공정수가 늘어나게 되는 문제점이 있는 것이다.As described above, the conventional method for manufacturing the matte PET container 45 has a problem in that the number of manufacturing steps is increased since the yub has to go through the coating process 7 after the molding of the PET container 45 is completed.
또한 무광택의 펫트용기를 제조함에 있어서 용기의 제조원가 보다 용기에 무광택을 하기 위한 유브이 코팅비용이 많아 무광택용기의 제조비용이 높은 문제점과 유브이 코팅이된 제품은 재활용이 불가능하여 자원이 낭비되고 많은 산업폐기물을 발생시키게 되는 문제점이 있다.In addition, in the manufacture of matte PET containers, there is a problem in that the manufacturing cost of the matte container is higher because the coating cost of the matte container is higher than the manufacturing cost of the container. There is a problem that causes.
그리고 용기의 표면에 코딩된 무광택 도료는 쉽게 벗겨지게 되어 제품의 품위를 손상시키는 문제점이 있는 것이다.And the matte coating coded on the surface of the container is easily peeled off there is a problem that damages the quality of the product.
본 발명은 전술한 문제점을 해결하기 위해 안출된 것으로서, 본 발명은 무광택의 펫트용기를 제조함에 있어서, 종래와 같이 성형이 완료된 용기의 표면에 무광택 도료를 도포시키지 않이 하고 펫트용기의 제조과정에서 무광택의 효과를 가지게 함으로써 펫트용기의 제조원가를 대폭적으로 낮출 수 있게 하고, 재활용의 장애인자로 지적되는 무광택 도료코팅공정을 배제시켜 재활용이 가능하게 하며, 무광택 처리층의 내구성을 향상시켜 긁힘(scratch)의 발생을 방지할 수 있게 하고, 보다 환경 친화적인 펫트용기의 제조방법과 그 장치를 제공함에 그 목적이 있다.The present invention has been made to solve the above-described problems, the present invention in the manufacture of the matte PET container, in the manufacturing process of the PET container without applying a matte paint on the surface of the container is completed as in the prior art It has a matte effect, which significantly reduces the manufacturing cost of PET containers, eliminates the matte coating process, which is pointed out as a handicapped person of recycling, enables recycling, and improves the durability of the matte layer to improve scratching. It is an object of the present invention to provide a method for manufacturing a PET container and a device thereof, which can prevent the occurrence of water and be more environmentally friendly.
본 발명은 상기와 같은 목적을 달성하기 위해서 다음과 같이 구성된다. 즉, 본 발명은 원료에 포함된 수분을 제거시키는 건조공정과, 건조된 원료를 용융시키는 용융공정과, 용융된 원료를 예비금형에 주입시켜 반제품(PREFORM)을 성형시키는반제품 성형공정과, 반제품의 성형품을 본 금형에 장입시키고 성형품의 내부로 고압의 에어를 불어넣어 펫트용기를 성형시키는 성형공정과, 성형완료된 펫트용기를 냉각시키는 냉각공정과, 냉각이 완료된 펫트용기를 금형으로부터 인출시키는 인출공정으로 되는 것에 있어서, 상기 본 금형의 내부면을 샌딩가공하고, 냉각공정의 냉매를 기름으로 하여 된 것이다.The present invention is configured as follows to achieve the above object. That is, the present invention provides a drying process for removing moisture contained in raw materials, a melting process for melting dried raw materials, a semi-finished product molding process for molding a semi-finished product by injecting the molten raw material into a preliminary mold, The molding process is carried out by inserting a molded product into the mold and blowing a high pressure air into the molded product to form a PET container, a cooling process of cooling the completed PET container, and a withdrawal process of drawing the cooled PET container out of the mold. In this process, the inner surface of the die is sanded, and the refrigerant in the cooling step is made of oil.
도 1 은 종래에 있어서의 공정을 도시한 공정도1 is a process chart showing a conventional process
도 2 는 본 발명의 공정을 도시한 공정도2 is a process diagram showing the process of the present invention.
도 3 은 본 발명의 예비금형을 발췌 도시한 단면도Figure 3 is a cross-sectional view showing the preliminary mold of the present invention
도 4 는 본 발명의 금형을 도시한 단면도4 is a cross-sectional view showing a mold of the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1. 건조공정 2. 용융공정1. Drying Process 2. Melting Process
3. 제 1성형공정 4. 제 2성형공정3. First Molding Process 4. Second Molding Process
5. 냉각공정 6. 인출공정5. Cooling process 6. Drawing process
30. 예비금형 40. 본 금형30. Preliminary mold 40. Main mold
41. 요철면 50. 오일41.Uneven surface 50.Oil
이하에서는 첨부 도면을 참조하여 본 발명의 바람직한 실시 예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
첨부된 도면 도 2 는 본 발명의 공정을 도시한 공정도이고, 도 3 은 본 발명의 예비금형을 발췌 도시한 단면도이며, 도 4 는 본 발명의 금형을 도시한 단면도이다.2 is a process diagram showing the process of the present invention, Figure 3 is a cross-sectional view showing an extract of the preliminary mold of the present invention, Figure 4 is a cross-sectional view showing a mold of the present invention.
도 2 및 도 4 에 도시된 바와 같이, 본 발명은 원료에 포함된 수분을 제거시키는 건조공정(1)과, 건조된 원료를 용융시키는 용융공정(2)과, 용융된 원료를 예비금형에 주입시켜 반제품(PREFORM)을 성형시키는 제 1성형공정(3)과, 반제품의 성형품(35)을 본 금형(40)에 장입시키고 성형품의 내부로 고압의 에어를 불어넣어 펫트용기(45)를 성형시키는 제 2성형공정(4)과, 성형 완료된 펫트용기(45)를 냉각시키는 냉각공정(5)과, 냉각이 완료된 펫트용기(45)를 금형으로부터 인출시키는 인출공정(6)으로 되는 것에 있어서, 상기 본 금형(40)의 내부면을 샌딩가공하여 요철면(41)을 형성하고, 냉각공정(5)의 냉매를 오일(oil)로 하여 된 것이다.As shown in Fig. 2 and 4, the present invention is a drying step (1) for removing the moisture contained in the raw material, a melting step (2) for melting the dried raw material, and injected the molten raw material into the preliminary mold First molding process (3) for molding a semi-finished product (PREFORM), and a molded product (35) of semi-finished product is charged into the mold (40), and a high pressure air is blown into the molded product to form a PET container (45). In the second molding step (4), the cooling step (5) for cooling the molded PET container (45), and the withdrawal step (6) for taking out the cooled PET container (45) from the mold. The inner surface of the die 40 is sanded to form the uneven surface 41, and the coolant in the cooling step 5 is oil.
이와 같은 본 발명의 제조공정을 보다 상세하게 설명하면 다음과 같다.When explaining the manufacturing process of the present invention in more detail as follows.
먼저 원료에 포함된 수분을 제거시키기 위하여 건조공정(1)에서 원료를 160℃ 정도로 가열하여 원료에 포함된 수분을 제거시킨다. 건조된 원료는 용융공정(2)으로 유입시켜 사출이 가능한 상태로 용융시키고, 용융된 원료를 제 1성형공정(3)의 예비금형(30)에 주입시켜 대략 원통형의 반제품(PREFORM)(35)을 성형시킨다.First, in order to remove the moisture contained in the raw material in the drying step (1) by heating the raw material to about 160 ℃ to remove the moisture contained in the raw material. The dried raw material is introduced into the melting process (2) to melt in an injection-capable state, and the molten raw material is injected into the preliminary mold (30) of the first molding process (3) to form a substantially cylindrical semi-form (PREFORM) 35. Molded.
제 1성형공정(3)거쳐 성형된 반제품(35)을 본 금형(40)에 장입시키고 성형품(35)의 내부로 고압의 에어를 불어넣어 펫트용기(45)를 성형시키는 제 2성형공정(4)을 실시하게 된다.The second molding process (4) inserting the semi-finished product 35 formed through the first molding process (3) into the mold 40 and blowing the high pressure air into the molded product 35 to form the PET container 45 (4). ).
제 2성형공정(4)이 진행되어 펫트용기(4)의 성형이 완료되는 시점에서 금형(40)의 내부로 냉매인 오일(50)을 순환시켜 성형품을 냉각시키게 되며, 이때 오일의 온도는 대략 80℃정도를 유지하도록 조정한다.At the time when the molding process of the PET container 4 is completed, the second molding process 4 proceeds to circulate the refrigerant oil 50 into the mold 40 to cool the molded product, wherein the temperature of the oil is approximately Adjust to maintain 80 ℃.
이와 같이 종래의 냉매인 물의 온도 보다 높은 온도인 오일(50)로써 성형품을 냉각시키게 되면 종래와 비교하여 대략 30%정도의 냉각시간이 더 소요된다.As such, when the molded product is cooled by the oil 50 having a temperature higher than that of the water, which is a conventional refrigerant, the cooling time of about 30% is further increased as compared with the conventional art.
하지만 본 발명에서는 별도의 코팅공정(7)을 거치지 않음에 따라 약 60∼70%의 원가를 절감시킬 수 있는 것이다.However, in the present invention, it is possible to reduce the cost of about 60 to 70% by not going through a separate coating process (7).
또한 본 발명에서 사용되는 냉매인 오일(50)은 물 보다는 비교적 온도의 유지가 용이하여 금형에 의해 형성된 엠보싱이 흘러내려 무광택이 상쇄되는 문제점은 발생되지 않는다.In addition, the oil 50, which is a refrigerant used in the present invention, is relatively easy to maintain a temperature rather than water, so that embossing formed by a mold flows down, so that matting is not canceled out.
냉각이 완료된 펫트용기(45)는 인출공정(6)에서 금형(40)으로부터 인출시켜 완성된 무광택의 펫트용기를 얻게 되는 것이다.After the cooling is completed, the PET container 45 is taken out from the mold 40 in the drawing process 6 to obtain a finished matte PET container.
본 발명은 전술한 실시 예에 국한되지 않고 본 발명의 기술사상이 허용하는 범위 내에서 다양하게 변형하여 실시할 수가 있다.The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical idea of the present invention.
이상에서와 같이 본 발명에 따르면 무광택의 펫트용기를 제조함에 있어서, 종래와 같이 성형이 완료된 용기의 표면에 무광택 도료를 도포시키지 않이 하고 펫트용기의 제조과정에서 무광택의 효과를 가지게 함으로써 펫트용기의 제조원가를 대폭적으로 낮출 수 있으며, 재활용의 장애인자로 지적되는 무광택 도료 코팅공정을 배제시켜 재활용이 가능하게 하고, 무광택 처리층의 내구성을 향상시켜 긁힘(scratch)의 발생을 방지할 수 있게 하며, 보다 환경 친화적인 펫트용기의 제조할 수 있는 효과가 있다.As described above, according to the present invention, in the manufacture of the matte PET container, by applying a matte paint on the surface of the container is completed as in the prior art without having a matte effect in the manufacturing process of the PET container of the PET container The manufacturing cost can be drastically reduced, and it can be recycled by eliminating the matte paint coating process, which is indicated as a handicapped person of recycling, and improving the durability of the matte treatment layer to prevent scratches, There is an effect that can be produced in a friendly PET container.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010046831A KR20030011420A (en) | 2001-08-02 | 2001-08-02 | Lusterless PET vessel manufacturing method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010046831A KR20030011420A (en) | 2001-08-02 | 2001-08-02 | Lusterless PET vessel manufacturing method and apparatus |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2020010023598U Division KR200260243Y1 (en) | 2001-08-03 | 2001-08-03 | Manufacturing mold of Lusterless PET vessel |
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| Publication Number | Publication Date |
|---|---|
| KR20030011420A true KR20030011420A (en) | 2003-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020010046831A KR20030011420A (en) | 2001-08-02 | 2001-08-02 | Lusterless PET vessel manufacturing method and apparatus |
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| Country | Link |
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| KR (1) | KR20030011420A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100975019B1 (en) * | 2003-05-07 | 2010-08-11 | 에스케이케미칼주식회사 | Process of production for non-glossy polyester bottle |
| KR101442187B1 (en) * | 2013-08-26 | 2014-09-24 | 박정원 | Screw manufacturing system for juicer and method thereof |
| KR102074583B1 (en) * | 2018-07-30 | 2020-03-02 | 최유진 | Manufacturing Method of Cosmetic Container |
| KR102177700B1 (en) | 2020-05-12 | 2020-11-11 | 이종민 | Master batch composition for manufacturing matt container and manufacturing method thereof |
-
2001
- 2001-08-02 KR KR1020010046831A patent/KR20030011420A/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100975019B1 (en) * | 2003-05-07 | 2010-08-11 | 에스케이케미칼주식회사 | Process of production for non-glossy polyester bottle |
| KR101442187B1 (en) * | 2013-08-26 | 2014-09-24 | 박정원 | Screw manufacturing system for juicer and method thereof |
| KR102074583B1 (en) * | 2018-07-30 | 2020-03-02 | 최유진 | Manufacturing Method of Cosmetic Container |
| KR102177700B1 (en) | 2020-05-12 | 2020-11-11 | 이종민 | Master batch composition for manufacturing matt container and manufacturing method thereof |
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