KR100610594B1 - Multilayer container without adhesive layer made by extrusion blow molding - Google Patents
Multilayer container without adhesive layer made by extrusion blow molding Download PDFInfo
- Publication number
- KR100610594B1 KR100610594B1 KR1020040056312A KR20040056312A KR100610594B1 KR 100610594 B1 KR100610594 B1 KR 100610594B1 KR 1020040056312 A KR1020040056312 A KR 1020040056312A KR 20040056312 A KR20040056312 A KR 20040056312A KR 100610594 B1 KR100610594 B1 KR 100610594B1
- Authority
- KR
- South Korea
- Prior art keywords
- container
- layer
- inner layer
- multilayer container
- blow molding
- Prior art date
Links
- 238000010101 extrusion blow moulding Methods 0.000 title claims abstract description 17
- 239000012790 adhesive layer Substances 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 79
- 229920005989 resin Polymers 0.000 claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 28
- 239000004332 silver Substances 0.000 claims abstract description 13
- 229910052709 silver Inorganic materials 0.000 claims abstract description 13
- 239000010975 amethyst Substances 0.000 claims abstract description 11
- 239000010977 jade Substances 0.000 claims abstract description 11
- 239000000049 pigment Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 239000000126 substance Substances 0.000 abstract description 7
- -1 multilayer Substances 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 4
- 230000000845 anti-microbial effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 16
- 229920000139 polyethylene terephthalate Polymers 0.000 description 15
- 239000005020 polyethylene terephthalate Substances 0.000 description 15
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 14
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 230000000996 additive effect Effects 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 239000011521 glass Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- FDSYTWVNUJTPMA-UHFFFAOYSA-N 2-[3,9-bis(carboxymethyl)-3,6,9,15-tetrazabicyclo[9.3.1]pentadeca-1(15),11,13-trien-6-yl]acetic acid Chemical compound C1N(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC2=CC=CC1=N2 FDSYTWVNUJTPMA-UHFFFAOYSA-N 0.000 description 3
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 3
- 238000000071 blow moulding Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 3
- 239000013538 functional additive Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- GXGJIOMUZAGVEH-UHFFFAOYSA-N Chamazulene Chemical group CCC1=CC=C(C)C2=CC=C(C)C2=C1 GXGJIOMUZAGVEH-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 2
- 229940097275 indigo Drugs 0.000 description 2
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 1
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000010102 injection blow moulding Methods 0.000 description 1
- 235000010746 mayonnaise Nutrition 0.000 description 1
- 239000008268 mayonnaise Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 229920001123 polycyclohexylenedimethylene terephthalate Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B1/00—Layered products having a non-planar shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- 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
- B32B37/15—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 being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—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 being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
본 발명은 압출 중공 성형법에 의해 성형되는 다층용기에 있어서, 상기 용기는 접착제층 없이 상용성이 있는 수지로 이루어진 외부층과 내부층의 두 개의 층으로 구성되되, 상기 내부층은 은, 옥, 또는 자수정을 더 포함하는 것을 특징으로 하는 다층용기에 관한 것이다.The present invention is a multi-layer container formed by extrusion blow molding method, wherein the container is composed of two layers of an outer layer and an inner layer made of a compatible resin without an adhesive layer, the inner layer is silver, jade, or It relates to a multi-layered container further comprising amethyst.
본 발명에 따르면 접착제층 없이 층을 형성하여 다층용기를 제작하기 때문에 종래에 비해 생산비를 절감할 수 있고, 내부층과 외부층에 적절한 수지를 사용하여 내약품성, 디자인성, 인쇄성 및 가스차단성을 향상시킬 수 있을 뿐만 아니라 은의 항균효과 또는 옥과 자수정의 원적외선 방출효과를 얻을 수 있다.According to the present invention, since a multi-layer container is manufactured by forming a layer without an adhesive layer, a production cost can be reduced compared to the conventional one, and chemical resistance, design, printability, and gas barrier properties can be reduced by using a resin suitable for an inner layer and an outer layer. Not only can it be improved, but the antimicrobial effect of silver or far-infrared emission of jade and amethyst can be obtained.
압출, 중공, 성형, 용기, 접착제층, 다층, 수지Extrusion, hollow, molding, container, adhesive layer, multilayer, resin
Description
본 발명은 압출 중공 성형법에 의해 성형된 접착제층 없는 다층용기에 관한 것으로, 보다 상세하게는 수지 사이의 상용성을 이용하여 접착제층 없이 층을 형성한 다층용기에 관한 것이다.The present invention relates to a multilayer container without an adhesive layer formed by an extrusion blow molding method, and more particularly to a multilayer container in which a layer is formed without an adhesive layer using compatibility between resins.
일반적으로 중공성형(Blow Molding)은 압출이나 사출에 의해 튜브상으로 예비성형(Parison)을 하여, 이것을 금형에 끼워서 내부로 공기를 불어 넣어 부풀게 해서 냉각 고화시켜 특정한 형태의 고형물을 만드는 방법입니다.In general, blow molding is a method of making a certain shape by solidifying a tube by preliminary molding (Parison) by extrusion or injection, inserting it into a mold, blowing air into the mold, and inflating it by cooling.
중공성형은 패리슨의 상태와 성형방식에 따라 연신 중공 성형, 사출 중공 성형 및 압출 중공 성형으로 분류하는 데, 패리슨이란 압출 중공 성형시에 다이(Die) 내에서 흘러나오는 압출물을 가리키는 말로 일반적으로 파이프(Pipe)의 형태를 가진다.Blow molding is classified into stretch blow molding, injection blow molding, and extrusion blow molding according to the state of the parison and the molding method, and parison refers to an extrudate flowing out of a die during extrusion blow molding. It has the form of a pipe.
여기서 압출 중공 성형은 스크류식, 램식 및 어큐뮬레이터식 세가지가 알려져 있으며, 통상적으로 크로스 헤드 다이라고 불리는 압출 다이를 압출기 선단에 설치하여 튜브상의 패리슨을 압출 성형하고, 곧 이어 패리슨의 내부에 압축공기를 취입하여 성형하는 방식이다.Here, three types of extrusion blow molding are known as screw type, ram type and accumulator type. An extrusion die, commonly referred to as a cross head die, is installed at the tip of the extruder to extrude a parison on a tube, and then compressed air inside the parison. It is a method of blowing and molding.
압출 중공 성형법에 의해 성형된 다층용기는 외부층, 내부층 및 이들 사이의 접착제층을 포함하는 3층 이상의 층으로 이루어진 것이 대부분이다. 이러한 다층용기는 가스차단을 목적으로 하는 용기(예:마요네즈용기 등)와 표면 인쇄성 향상을 목적으로 하는 용기로 크게 나눌 수 있다. 이 경우 다층 용기의 재질로 폴리에틸렌(polyethelene, PE)과 에틸렌비닐알콜(ethylenevinylalcohol, EVOH) 또는 에틸렌비닐아세테이트(ethylenevinylacetate, EVA)가 사용된다. 그러나 이러한 수지를 이용하여 다층 용기를 성형하는 경우 수지들 사이에 상용성이 없어 층간의 분리현상이 나타나므로 접착제층을 반드시 추가해야 한다. The multilayer container molded by the extrusion blow molding method is usually composed of three or more layers including an outer layer, an inner layer, and an adhesive layer therebetween. Such multilayer containers can be broadly divided into containers for the purpose of gas barrier (eg mayonnaise containers) and containers for the purpose of improving surface printability. In this case, polyethylene (polyethelene, PE), ethylene vinyl alcohol (ethylenevinylalcohol, EVOH) or ethylene vinyl acetate (ethylenevinylacetate, EVA) is used as a material for the multilayer container. However, when the multilayer container is formed using such a resin, an adhesive layer must be added because there is no compatibility between the resins and separation between layers occurs.
따라서 이러한 종래의 다층용기는 수지보다 높은 접착제의 단가로 인해 제조원가가 높고, 재료를 압출하는 압출기가 적어도 3개 이상 필요하기 때문에 압출 중공 성형 장비도 고가이며, 용기의 재활용이 불가능한 문제점이 있다. Therefore, such a conventional multilayer container is expensive due to the higher cost of the adhesive than the resin, the extrusion blow molding equipment is also expensive because at least three extruders for extruding the material is expensive, there is a problem that can not be recycled container.
또한, 사출 성형법에 의해 유리와 같은 투명한 효과를 갖는 용기를 제작하는 경우, 아크릴 수지를 사출하여 불투명 폴리에틸렌(PE) 내부 용기를 끼워 넣거나 사출 성형된 용기 안쪽에 인쇄를 한다. 이러한 이중 용기는 사출 금형의 제작비가 고가이고, 용기를 체결해야 하기 때문에 인건비와 추가 공정이 필요하여 제조단가가 높다는 단점이 있어 일부 고가의 화장품 용기에만 적용되고 있다. In addition, when manufacturing a container having a transparent effect such as glass by the injection molding method, an acrylic resin is injected to insert an opaque polyethylene (PE) inner container or to print inside the injection molded container. Such a double container is expensive to manufacture an injection mold, and has a disadvantage in that a manufacturing cost is high due to a labor cost and an additional process because the container must be fastened, and thus, it is applied to only some expensive cosmetic containers.
본 발명은 상기와 같은 문제점들을 해결하기 위한 것으로서, 본 발명의 목적 은 접착제층의 필요없이 압출 중공 성형법에 의해 여러 층을 형성할 수 있는 다층용기를 제공하는 것이다. The present invention has been made to solve the above problems, and an object of the present invention is to provide a multi-layered container capable of forming various layers by extrusion blow molding without the need for an adhesive layer.
또한 본 발명은 우수한 내약품성, 디자인성, 인쇄성 및 가스차단성을 갖는 다층용기와, 항균효과 또는 원적외선 방출효과가 있는 다층용기를 제공하는 것이다. In another aspect, the present invention is to provide a multilayer container having excellent chemical resistance, design, printability and gas barrier properties, and a multilayer container having an antimicrobial effect or far infrared ray emitting effect.
상술한 바와 같은 기술적 과제를 달성하기 위해서, 압출 중공 성형법에 의해 성형되는 다층용기에 있어서, 상기 용기는 접착제층 없이 상용성이 있는 수지로 이루어진 외부층과 내부층의 두 개의 층으로 구성되되, 상기 내부층은 은, 옥, 또는 자수정을 더 포함하는 다층 용기를 제공한다.
이에, 상기 은, 옥 또는 자수정의 첨가량은 다층 용기의 내부층을 이루는 수지 100 중량부 대비 0.001 내지 50 중량부인 것이다.
또한, 상기 내부층은 안료를 더 포함하되, 상기 안료의 첨가량은 다층 용기의 내부층을 이루는 수지 100 중량부 대비 0.001 내지 50 중량부인 다층 용기를 제공한다.In order to achieve the above technical problem, in a multi-layer container molded by the extrusion blow molding method, the container is composed of two layers of an outer layer and an inner layer made of a compatible resin without an adhesive layer, The inner layer provides a multilayer container further comprising silver, jade, or amethyst.
Thus, the addition amount of silver, jade or amethyst is 0.001 to 50 parts by weight relative to 100 parts by weight of the resin forming the inner layer of the multilayer container.
In addition, the inner layer further comprises a pigment, the amount of the pigment provides a multilayer container of 0.001 to 50 parts by weight relative to 100 parts by weight of the resin constituting the inner layer of the multilayer container.
이하, 본 발명을 상세히 설명한다. Hereinafter, the present invention will be described in detail.
본 발명자들은 압출 중공 성형법에 의해 접착제층이 없는 다층용기를 성형하는 방법에 대하여 연구한 결과, 상용성이 있는 수지를 이용하여 여러 층을 형성함으로써 접착제층 없이 다층용기를 제작할 수 있음을 확인하고, 이를 토대로 본 발명을 완성하게 되었다.The present inventors studied a method of molding a multilayer container without an adhesive layer by an extrusion blow molding method, and as a result, it was confirmed that a multilayer container without an adhesive layer could be manufactured by forming several layers using a compatible resin. Based on this, the present invention has been completed.
본 발명에 따른 다층용기는 접착제층 없이 외부층과 내부층의 두 개의 층으로 이루어진다. The multilayer container according to the present invention consists of two layers, an outer layer and an inner layer, without an adhesive layer.
여기서 상기 외부층의 재질은 글리콜 변성 폴리테레프탈산에틸렌 (polyethylene terephthalate, 이하 PETG라 칭함), 폴리카보네이트(polycarbonate, 이하 PC라 칭함), 폴리테레프탈산에틸렌(polyethylene terephthalate, 이하 PET라 칭함), 글리콜 변성 폴리시클로헥실렌 디메틸렌테레프탈레이트(glycol modified polycyclohexylene dimethylene terephtalate,이하 PCTG라 칭함), 및 산 변성 폴리시클로헥실렌 디메틸렌테레프탈레이트(acid modified polycyclohexylene dimethylene terephtalate,이하 PCTA라 칭함)로 이루어진 군에서 선택된 하나인 것이 바람직하다. Herein, the material of the outer layer is glycol-modified polyterephthalate (polyethylene terephthalate, hereinafter referred to as PETG), polycarbonate (polycarbonate, hereinafter referred to as PC), polyterephthalate (polyethylene terephthalate, hereinafter referred to as PET), glycol-modified polycyclo Hexylene dimethylene terephthalate (glycol modified polycyclohexylene dimethylene terephtalate, hereinafter referred to as PCTG), and acid-modified polycyclohexylene dimethylene terephtalate (hereinafter referred to as PCTA) desirable.
그리고 상기 내부층의 재질은 PETG, PC, PET, PCTG, 및 PCTA로 이루어진 군에서 선택된 하나인 것이 바람직하다. And the material of the inner layer is preferably one selected from the group consisting of PETG, PC, PET, PCTG, and PCTA.
상기 수지가 본 발명의 재질로 바람직한 이유는 압출 중공성형으로 제조된 외형의 투명성을 유지하면서 상용성도 우수하기 때문이다.The reason why the resin is preferable as the material of the present invention is that the resin is excellent in compatibility while maintaining the transparency of the outer shape manufactured by extrusion blow molding.
본 발명에 따른 다층용기의 외부층과 내부층은 각각 서로 상용성 있는 수지로 이루어져 있고, 이러한 수지 사이의 상용성으로 인해 본 발명의 다층용기는 접착제층 없이 외부층과 내부층 사이의 접착이 형성된다. 따라서 본 발명의 다층용기에 따르면 접착제 단가에 상승된 다층용기의 제조단가를 감소시킬 수 있게 된다.The outer layer and the inner layer of the multilayer container according to the present invention are each made of a resin compatible with each other, and due to the compatibility between the resins, the multilayer container of the present invention is formed without adhesion between the outer layer and the inner layer without an adhesive layer. do. Therefore, according to the multi-layered container of the present invention, it is possible to reduce the manufacturing cost of the multi-layered container raised to the cost of the adhesive.
본 발명의 다층용기의 내부층은 용기 외부가 유리와 같은 효과를 갖고 내용물이 보이지 않도록 하기 위하여 안료를 더욱 포함하는 것이 바람직하다. 종래 사출 성형 방법에 의해 유리와 같은 투명한 효과를 갖는 용기를 제작하는 경우, 아크 릴 수지를 사출하여 불투명 폴리에틸렌(PE) 내부용기를 끼워 넣거나 사출 성형된 용기 안쪽에 인쇄를 하였으나, 이러한 이중 용기는 사출 금형의 제작비가 고가이고, 용기를 체결해야 하기 때문에 인건비와 추가 공정이 필요하여 제조단가가 높다는 단점이 있었다. 그러나 내부층에 안료를 추가적으로 적용하여 다층용기를 제작함으로써 종래의 사출 성형에 의해 체결한 용기와 비교하여 저렴한 제조단가로 동일한 효과를 갖는 다층용기를 제작할 수 있다. The inner layer of the multi-layered container of the present invention preferably further comprises a pigment so that the outside of the container has a glassy effect and the contents are invisible. In the case of manufacturing a container having a transparent effect such as glass by the conventional injection molding method, an acrylic resin was injected to insert an opaque polyethylene (PE) container or printed inside the injection molded container. The manufacturing cost of the mold is expensive, and since the container must be fastened, there is a disadvantage in that the manufacturing cost is high due to the labor cost and the additional process. However, by applying the pigment to the inner layer additionally to produce a multi-layer container it can be produced a multi-layer container having the same effect at a low production cost compared to the container fastened by the conventional injection molding.
본 발명의 다층 용기 제작에 사용될 수 있는 안료로는 공지의 안료가 사용가능하나, 특히 백색 용기를 제작할 경우 산화티탄이 바람직하고, 청색 용기를 제작할 경우 울트라마린 블루 또는 프탈로시안 블루가 바람직하고, 남색 용기를 제작할 경우 인디고 안료가 바람직하다. 또한 이처럼 안료가 첨가될 경우 그 함량은 내부층을 이루는 수지 100 중량부에 대하여 0.001 내지 50 중량부가 바람직하다. Known pigments can be used as the pigment that can be used in the production of the multilayer container of the present invention, in particular, titanium oxide is preferable when producing a white container, and ultramarine blue or phthalocyan blue is preferable when producing a blue container. Indigo pigments are preferred when producing indigo containers. In addition, when the pigment is added as such, the content is preferably 0.001 to 50 parts by weight based on 100 parts by weight of the resin forming the inner layer.
또한 안료 첨가방법으로는 내부층을 이루는 수지에 직접 첨가하여 압출 중공성형하는 방법이 바람직하다.In addition, as a pigment addition method, the method of extrusion blow molding by adding directly to resin which comprises an inner layer is preferable.
또한, 본 발명 다층용기의 내부층은 은(silver), 옥(jade) 또는 자수정(Amethyst)을 더욱 포함하는 것이 바람직하다. 종래의 용기에 특수 첨가제를 추가하는 경우, 첨가제가 용기의 전체에 분산되기 때문에 첨가제의 소비량에 따른 효과가 반감되는 단점이 있다. In addition, the inner layer of the multilayer container of the present invention preferably further comprises silver (jade) or jade (Amethyst). In the case of adding a special additive to a conventional container, since the additive is dispersed throughout the container, there is a disadvantage that the effect according to the consumption amount of the additive is halved.
그러나 본 발명에 따른 다층용기의 내부층에 은 또는 자수정과 같은 특수 첨가제를 추가함으로써 내용물이 접촉하는 용기의 내부에 첨가제가 포함되어 적은 양으로 은의 항균효과 또는 옥과 자수정의 원적외선 방출효과를 얻을 수 있게 된다. 이와 같이 은 등의 기능성 첨가제가 첨가될 경우 그 함량은 내부층을 이루는 수지 100 중량부에 대하여 0.001 내지 50 중량부가 바람직하다.However, by adding a special additive such as silver or amethyst to the inner layer of the multi-layer container according to the present invention, the additive is included in the inside of the container in which the contents contact, so that the antimicrobial effect of silver or the far-infrared emission effect of jade and amethyst can be obtained. do. As such, when a functional additive such as silver is added, the content thereof is preferably 0.001 to 50 parts by weight based on 100 parts by weight of the resin forming the inner layer.
또한 기능성 첨가제의 첨가방법으로는 내부층을 이루는 수지에 직접 첨가하여 압출 중공성형하는 방법도 가능하고, 상기한 안료와 함께 첨가할 수도 있다.In addition, a method of adding a functional additive may be directly added to the resin constituting the inner layer to perform extrusion blow molding, or may be added together with the pigment described above.
한편, 상기 외부층의 재질은 PETG이고, 내부층의 재질은 PET인 것이 투명도 및 인쇄성을 최대한 발휘하면서 내약품성을 보완하기 위하여 바람직하다. PETG는 투명도 및 인쇄성이 우수하여 용기의 재질로 널리 사용되나 내약품성이 PET에 비해 약하기 때문에 알코올의 농도가 높은 향수, 주류 등의 용기에 대한 사용은 제한적이었다. 또한 내약품성이 요구되는 용기의 재질로 PET이 바람직하나, PET는 용융점도가 낮아 압출 중공 성형이 어려운 문제점이 있다. 따라서 외부층의 재질을 PETG로 하고, 내부층의 재질을 PET로 하여 다층용기를 제작하는 경우, PETG에 의해 유리와 같은 투명도, 디자인성 및 인쇄성을 얻고, PET에 의한 우수한 산소차단성 및 내약품성을 얻을 수 있게 된다. On the other hand, the material of the outer layer is PETG, the material of the inner layer is preferably PET to complement the chemical resistance while exhibiting maximum transparency and printability. PETG is widely used as a material for containers because of its excellent transparency and printability, but its chemical resistance is weak compared to PET, so the use of containers with high alcohol concentration is limited. In addition, PET is preferable as a material of a container requiring chemical resistance, and PET has a problem in that extrusion blow molding is difficult due to low melt viscosity. Therefore, when manufacturing a multilayer container using PETG for the outer layer and PET for the inner layer, transparency, design, and printability, such as glass, are obtained by PETG, and excellent oxygen barrier property and resistance to PET are obtained. It is possible to obtain chemical properties.
여기서 외부층의 두께는 0.2mm 이상 10mm 이하이고, 내부층의 두께는 0.01mm 이상 2mm 이하인 것이 바람직하다. 외부층의 두께가 0.2mm 미만인 경우 PETG의 유리와 같은 투명도 발현이 어려우므로 바람직하지 아니하고, 10mm를 초과하는 경우 냉각이 늦어 생산성이 떨어지므로 바람직하지 않다. 아울러, 내부층의 두께가 0.01mm 미만이면 첨가제를 첨가할 경우 첨가제의 분산성이 떨어져 바람직하지 아니하고, 2mm를 초과하는 경우 PET의 낮은 용융점도로 인해 내부층 형성이 곤란하므로 바람직하지 아니하다. It is preferable that the thickness of an outer layer is 0.2 mm or more and 10 mm or less, and the thickness of an inner layer is 0.01 mm or more and 2 mm or less. When the thickness of the outer layer is less than 0.2mm, it is not preferable because it is difficult to express the transparency, such as glass of PETG, and when it exceeds 10mm, cooling is slow and productivity is not preferable. In addition, when the thickness of the inner layer is less than 0.01mm, it is not preferable that the dispersibility of the additive is lowered when the additive is added, and when the thickness of the inner layer exceeds 2mm, the inner layer is difficult due to the low melt viscosity of PET.
이하, 본 발명을 실시예에 의해 상세히 설명한다. Hereinafter, the present invention will be described in detail by way of examples.
단, 하기 실시예는 본 발명을 예시하는 것일 뿐, 본 발명의 내용이 하기 실시예에 한정되는 것은 아니다. However, the following examples are merely to illustrate the invention, but the content of the present invention is not limited to the following examples.
(실시예)(Example)
(실시예 1)(Example 1)
외부층의 재질로 PETG를 사용하였다. 사용한 PETG의 고유점도는 0.78 dl/g이며 가공온도는 195~200℃이었다. 재료의 분해를 방지하기 위하여 65℃에서 6시간 동안 제습 건조를 실시하였다. 내부층의 재질로 PET를 사용하였다. 사용한 PET는 IPA(이소프탈산)으로 공중합된 PET를 사용하였다.PETG was used as the material of the outer layer. The intrinsic viscosity of the used PETG was 0.78 dl / g and the processing temperature was 195 ~ 200 ℃. Dehumidification drying was performed at 65 ° C. for 6 hours to prevent decomposition of the material. PET was used as the material of the inner layer. PET used was PET copolymerized with IPA (isophthalic acid).
각각의 압출기를 이용하여 용융된 수지가 아답터(Adapter)에 모이게 되고, 이 아답터에 모인 수지가 압출기의 멀티레이어 헤드(Multilayer Head)로 이동되었다. 이 헤드에서 2개의 층으로 나누어지게 되며 이 두개의 층이 크로스 헤드 다이라고 불리는 압출 다이(Die)에서 만나 층을 이루었다. 이렇게 형성된 층은 페리슨 형태로 압출되면 금형이 닫히고, 압출공기로 블로잉(Blowing)하여 다층용기를 성형 하였다.Using each extruder, the molten resin was collected in an adapter, and the resin collected in the adapter was transferred to a multilayer head of the extruder. The head is divided into two layers, which are layered together in an extrusion die called a cross head die. Thus formed layer is extruded in Ferrison form, the mold is closed, blown with extruded air (Blowing) to form a multi-layer container.
이와 같이 제조된 용기의 외부층 두께는 2mm이었고, 내부층은 두께는 0.5mm로 외부층인 PETG 에 코팅하는 수준으로 압출 중공 성형하였다. The outer layer thickness of the container thus prepared was 2 mm, and the inner layer was 0.5 mm in thickness by extrusion blow molding to a level coated on the outer layer PETG.
(실시예 2)(Example 2)
외부층의 재질로 상기 실시예 1과 동일한 PETG를 사용하고, 내부층의 재질로 PCTG(CHDM 함량 TPA 대비 50mol% 이상)를 사용하여 상기 실시예 1과 동일한 방법으로 다층용기를 성형하였다. The same PETG as Example 1 was used as the material of the outer layer, and the multilayer container was formed in the same manner as in Example 1 using PCTG (50 mol% or more of the CHDM content TPA) as the material of the inner layer.
(실시예 3)(Example 3)
외부층의 재질로 상기 실시예 1과 동일한 PETG를 사용하고, 내부층의 재질로 PCTA를 사용하여 상기 실시예 1과 동일한 방법으로 다층용기를 성형하였다. The same PETG as Example 1 was used as the material of the outer layer and PCTA was used as the material of the inner layer to form a multilayer container in the same manner as in Example 1.
(실시예 4)(Example 4)
내부층을 이루는 PET 수지 100 중량부에 대하여 1 중량부의 산화티탄 백색 안료를 첨가한 것을 제외하고는 실시예 1과 동일한 방법으로 다층용기를 성형하였다. A multilayer container was formed in the same manner as in Example 1, except that 1 part by weight of titanium oxide white pigment was added to 100 parts by weight of the PET resin constituting the inner layer.
(실시예 5)(Example 5)
내부층을 이루는 수지로 PETG를 사용하였고, PETG 수지 100 중량부에 대하여 1 중량부의 은을 첨가한 것을 제외하고는 실시예 1과 동일한 방법으로 다층용기를 성형하였다. PETG was used as the resin forming the inner layer, and a multilayer container was molded in the same manner as in Example 1 except that 1 part by weight of silver was added based on 100 parts by weight of PETG resin.
이와 같이 본 발명에 의하면, 접착제층 없이 층을 형성하여 다층용기를 제작하기 때문에 종래에 비해 생산비를 낮출 수 있게 된다. As described above, according to the present invention, since a multilayer container is formed by forming a layer without an adhesive layer, the production cost can be lowered as compared with the related art.
그리고 내부층과 외부층에 적절한 수지를 사용하여 우수한 내약품성, 디자인성, 인쇄성 및 가스차단성을 얻을 수 있다.
용기의 내부층에는 기능 첨가제인 은, 옥 또는 자수정이 포함되어 있어, 상기 용기의 내부에 담겨지는 내용물은 은에 의해 항균효과를 얻을 수 있는 동시에 옥과 자수정에 의해 원적외선 방출효과를 얻을 수 있는 것이다.In addition, by using a resin suitable for the inner layer and the outer layer, excellent chemical resistance, design, printability, and gas barrier properties can be obtained.
The inner layer of the container contains silver, jade or amethyst, which are functional additives, and the contents contained in the inside of the container can obtain antibacterial effect by silver and far infrared emission effect by jade and amethyst.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040056312A KR100610594B1 (en) | 2004-07-20 | 2004-07-20 | Multilayer container without adhesive layer made by extrusion blow molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040056312A KR100610594B1 (en) | 2004-07-20 | 2004-07-20 | Multilayer container without adhesive layer made by extrusion blow molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20060007498A KR20060007498A (en) | 2006-01-26 |
| KR100610594B1 true KR100610594B1 (en) | 2006-08-10 |
Family
ID=37118738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020040056312A KR100610594B1 (en) | 2004-07-20 | 2004-07-20 | Multilayer container without adhesive layer made by extrusion blow molding |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100610594B1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100408583B1 (en) * | 1995-05-12 | 2004-06-23 | 스미또모 가가꾸 고교 가부시끼가이샤 | Blow molded container and its manufacturing method |
-
2004
- 2004-07-20 KR KR1020040056312A patent/KR100610594B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100408583B1 (en) * | 1995-05-12 | 2004-06-23 | 스미또모 가가꾸 고교 가부시끼가이샤 | Blow molded container and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060007498A (en) | 2006-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100569504C (en) | The production method of PVC-U composite nano drainpipe | |
| CN100500522C (en) | High-barrier double-wall plastic bottle and method for manufacturing same | |
| CN106240102B (en) | Five-layer co-extrusion blown film and preparation process and application thereof | |
| EP2703158A2 (en) | Environmentally friendly deco sheet having outstanding moulding properties and glossiness | |
| CN101354106B (en) | Decorative plastic special-shaped section bar and producing method thereof | |
| EP2094466B1 (en) | Formulation, preform produced thereof, and method for the production of stretch blow-molded opaque plastic containers | |
| CN103747940A (en) | Extruded PET parison, container, and method | |
| CN102582185B (en) | PVC (Poly Vinyl Chloride) composite material | |
| CN101746536A (en) | Compound bottle and manufacturing method thereof | |
| CN1133535C (en) | Improved polypropylene pearlescent synthetic paper making method | |
| KR100610594B1 (en) | Multilayer container without adhesive layer made by extrusion blow molding | |
| KR100859229B1 (en) | Method for producing multilayer container with coating effect | |
| CN201587630U (en) | Extinction blocking five-layer coextruded composite film | |
| CN201350980Y (en) | Composite bottle | |
| CN1693148A (en) | Multilayer polymer compound packaging container with nano-layer texture and its processing method | |
| CN202986265U (en) | Antibacterial barrier five-layer co-extruded composite film | |
| CN202439203U (en) | Production device for double-layer polyvinyl chloride (PVC) composite material | |
| CN1288043C (en) | High separation plastic bottle and its manufacturing method | |
| CN104174447B (en) | A kind of pipette and production technology thereof | |
| JP2016117166A (en) | Composite container, production method thereof, composite preform, and plastic member | |
| JP7211741B2 (en) | Decorative extrusions | |
| CN1276026C (en) | PETG card-base for resident identity card and process for preparing same | |
| JPH05338638A (en) | Maulti-layer blow molded container | |
| AU2017210616A1 (en) | Extruded PET parison, container, and method | |
| CN1740063A (en) | Biodegradable plastic container and its making process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20120802 Year of fee payment: 7 |
|
| FPAY | Annual fee payment |
Payment date: 20130805 Year of fee payment: 8 |
|
| FPAY | Annual fee payment |
Payment date: 20140801 Year of fee payment: 9 |
|
| FPAY | Annual fee payment |
Payment date: 20150706 Year of fee payment: 10 |
|
| FPAY | Annual fee payment |
Payment date: 20170124 Year of fee payment: 11 |
|
| FPAY | Annual fee payment |
Payment date: 20170803 Year of fee payment: 12 |
|
| FPAY | Annual fee payment |
Payment date: 20180802 Year of fee payment: 13 |