KR100653407B1 - Port tube for non-PVC bags - Google Patents
Port tube for non-PVC bags Download PDFInfo
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- KR100653407B1 KR100653407B1 KR1020040092043A KR20040092043A KR100653407B1 KR 100653407 B1 KR100653407 B1 KR 100653407B1 KR 1020040092043 A KR1020040092043 A KR 1020040092043A KR 20040092043 A KR20040092043 A KR 20040092043A KR 100653407 B1 KR100653407 B1 KR 100653407B1
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- South Korea
- Prior art keywords
- tube
- thickness
- pvc
- ethylene
- sap
- Prior art date
Links
- 239000004743 Polypropylene Substances 0.000 claims abstract description 19
- 238000002844 melting Methods 0.000 claims abstract description 15
- 230000008018 melting Effects 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- -1 polypropylene Polymers 0.000 claims abstract description 12
- 229920001155 polypropylene Polymers 0.000 claims abstract description 10
- 229920000098 polyolefin Polymers 0.000 claims abstract 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 4
- 239000004711 α-olefin Substances 0.000 claims description 4
- 229920001038 ethylene copolymer Polymers 0.000 claims description 3
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 3
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 3
- 229920001684 low density polyethylene Polymers 0.000 claims description 3
- 239000004702 low-density polyethylene Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 49
- 239000004800 polyvinyl chloride Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 17
- 229920000915 polyvinyl chloride Polymers 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 15
- 229920001577 copolymer Polymers 0.000 description 11
- 239000004698 Polyethylene Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 229920005672 polyolefin resin Polymers 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000012792 core layer Substances 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920005606 polypropylene copolymer Polymers 0.000 description 3
- 229920005629 polypropylene homopolymer Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- ZGEGCLOFRBLKSE-UHFFFAOYSA-N 1-Heptene Chemical compound CCCCCC=C ZGEGCLOFRBLKSE-UHFFFAOYSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N 1-nonene Chemical compound CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- DCTOHCCUXLBQMS-UHFFFAOYSA-N 1-undecene Chemical compound CCCCCCCCCC=C DCTOHCCUXLBQMS-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- PZWQOGNTADJZGH-SNAWJCMRSA-N (2e)-2-methylpenta-2,4-dienoic acid Chemical compound OC(=O)C(/C)=C/C=C PZWQOGNTADJZGH-SNAWJCMRSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 1
- 229920005680 ethylene-methyl methacrylate copolymer Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005673 polypropylene based resin Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1468—Containers characterised by specific material properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1475—Inlet or outlet ports
- A61J1/1487—Inlet or outlet ports with friction fit, e.g. connecting tubes directly to a protruding port
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/08—Tubes; Storage means specially adapted therefor
-
- 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
- B32B1/08—Tubular products
-
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
Landscapes
- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pharmacology & Pharmacy (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
본 발명은 넌-피부이씨(Non-PVC) 수액백용 포오트 튜브에 관한 것으로서, 더욱 상세하게는 융점이 125∼165℃인 폴리프로필렌계 수지로 구성되고 두께가 튜브 단면 두께의 5∼40 % 인 외층부와, 쇼아 D 경도가 70 이하인 폴리올레핀계 수지로 구성되고 두께가 튜브 단면 두께의 60∼95 % 인 내층부로 이루어지는 것을 특징으로 하는 포오트 튜브에 관한 것이다. The present invention relates to a potion tube for non-PVC sap bag, and more particularly, it is composed of polypropylene resin having a melting point of 125 to 165 ° C. and has a thickness of 5 to 40% of the tube cross-sectional thickness. It is related with the pot tube characterized by consisting of an outer layer part and polyolefin type resin whose Shore D hardness is 70 or less, and an inner layer part whose thickness is 60 to 95% of the tube cross-sectional thickness.
Non-PVC 백, 수액백, 포오트, 튜브Non-PVC Bags, Sap Bags, Potts, Tubes
Description
본 발명은 넌-피부이씨 수액백용 포오트 튜브에 관한 것으로서, 보다 상세하게는 내열성이 우수하고 넌-피부이씨 수액백 소재와의 접착력이 뛰어난 외층부와, 유연성이 우수하여 포오트와의 밀착력 및 마찰력이 좋은 내층부로 이루어진 포오트 튜브에 관한 것이다. The present invention relates to a potty tube for non-skin seed sap bag, and more particularly, to an outer layer having excellent heat resistance and excellent adhesion to a non-skin seed sap bag material, and excellent flexibility and adhesion to a potion. It relates to a pot tube made of a friction-resistant inner layer.
일반적으로 병원에서 환자를 수술하거나 치료할 때 환자에게 투여하는 생리식염액, 포도당액 등의 수액(輸液)은 일정 형태의 의료용 용기에 보관된다. 종래에는 소재적 장점 때문에 주로 유리병으로 된 수액용기가 많이 사용되어 왔으나, 유리병 용기는 부피가 크고, 깨질 염려가 있으며, 무게가 무거운 등의 단점이 있어서 최근에는 합성수지 소재된 파우치형 수액백이 사용되고 있다. 합성수지 수액백은 우선 깨어질 염려가 없어 취급이 용이하고, 보관 및 운송이 편리한 장점이 있기 때문에 최근 수액용기 시장은 합성수지 수액백으로 급속히 대체되고 있다.In general, sap (輸液), such as physiological saline solution and glucose solution administered to a patient when operating or treating a patient in a hospital is stored in a medical container of some form. Conventionally, many sap containers mainly made of glass bottles have been used because of material advantages, but glass bottle containers have a problem of being bulky, fragile, and heavy, such that pouch-type sap bags made of synthetic resin have recently been used. have. Synthetic resin sap bags are not easily broken because they are easy to handle and easy to store and transport. Recently, the sap container market is rapidly being replaced by synthetic sap bags.
종래에 사용되어 온 합성수지 수액백의 소재로는 부드럽고 질기며, 투명성이 좋은 폴리염화비닐(Polyvinyl chloride, 이하, 'PVC'라 함) 필름이 주로 사용되어 왔으나, 얼마 전부터 PVC 에 포함된 가소제가 환경오염 물질로 지목되고, 그 안전성에 대한 논란이 계속 제기됨에 따라, 최근에는 PVC 소재가 아닌 합성수지 필름, 소위 넌-피부이씨(Non-PVC) 필름을 이용한 수액백이 속속 개발되고 있다. As a material of the synthetic resin sap bag that has been used conventionally, a polyvinyl chloride (PVC) film having a good transparency and softness has been mainly used, but plasticizers included in PVC have been used for some time. As a material and a controversy over the safety, the sap bag using a non-PVC material, so-called non-PVC film is being developed one after another.
한편, 파우치형 수액백에는 외부로 통하는 한두개의 원통형 튜브(Tube)가 설치되고, 이 튜브의 끝단에는 내용물을 배액하는데 사용되는 스파이크(Spike)를 꽂거나, 약물을 주입하기 위하여 주사기를 꽂는 포오트(Port)가 설치된다. 이때 상기 튜브는 수액백을 제조하기 위하여 백의 가장자리를 실링할 때 수액백과 일체로 설치된다. 그러나, 종래에 개발된 Non-PVC 수액백의 경우, 상기 튜브 소재와 Non-PVC 수액백 소재가 서로 상용성이 부족하여 그 접합부위가 완벽하게 밀봉되지 않고, 따라서 수액백의 보관 또는 운송 중에 누액이나 파손이 자주 발생하였다. 또한, 튜브가 찌그러지거나 튜브의 끝단에 삽입, 설치되는 포오트의 외주면과 튜브의 내주면이 정밀하게 밀착되지 않아서 결국 포오트가 튜브로 부터 빠져나오는 문제가 있었다. On the other hand, a pouch-type sap bag is provided with one or two cylindrical tubes leading to the outside, and a pot for inserting a spike used to drain the contents or a syringe for injecting drugs at the end of the tube. (Port) is installed. At this time, the tube is installed integrally with the sap bag when sealing the edge of the bag to produce the sap bag. However, in the case of the conventionally developed non-PVC sap bag, the tube material and the non-PVC sap bag material are not compatible with each other, and thus the junction part thereof is not completely sealed, and thus leakage or breakage during storage or transportation of the sap bag. This often happened. In addition, the tube is crushed or the outer peripheral surface and the inner peripheral surface of the tube to be inserted and installed at the end of the tube is not in close contact with each other, there is a problem that the port is eventually released from the tube.
이러한 문제점을 해결하기 위하여 국내특허출원 제1994-7000102호에서는 3층구조로 동시 압출된 튜브가 바 있다. 이 튜브는 폴리프로필렌 공중합체와 스티렌-에틸렌-부틸렌-스티렌 공중합체의 혼합물을 포함하고, 두께가 전체 단면 두께의 2.5 내지 30%인 외층과, 두께가 전체 단면 두께의 2.5 내지 20 %인 타이층, 그리 고 두께가 전체 단면 두께의 50 내지 95 %인 폴리염화비닐 코어층으로 이루어 진다. 즉, Non-PVC 필름과의 접착력이 좋은 폴리프로필렌 공중합체를 외층으로 하고, 부드러우면서도 질긴 PVC를 코어층으로 하며, 상기 외층과 코어층을 연결하여 접착력을 부여하는 중간층은 폴리에스테르, 폴리에스테르와 폴리프로필렌의 혼합물을 공압출한 것이다. 그러나 이러한 다층 공압출 튜브는 중간층을 구성하는 수지성분과 외층 및 내층을 구성하는 수지성분 사이의 상용성이 부족하여 투명성이 불량하고, 특히 체내로 주입되는 수액과 직접 접촉하는 내층은 환경오염 소재인 폴리염화비닐을 사용하고 있기 때문에 여전히 안전성이 확보되어 있지 않고, 폐기시 환경 다량의 오염물질을 배출하는 문제점을 지니고 있었다.In order to solve this problem, Korean Patent Application No. 194-7000102 has a tube co-extruded in a three-layer structure. The tube comprises a mixture of polypropylene copolymer and styrene-ethylene-butylene-styrene copolymer, an outer layer having a thickness of 2.5 to 30% of the total cross-sectional thickness, and a tie having a thickness of 2.5 to 20% of the total cross-sectional thickness. Layer, and a polyvinyl chloride core layer with a thickness of 50 to 95% of the total cross-sectional thickness. That is, the polypropylene copolymer having good adhesion with the non-PVC film is used as the outer layer, the soft and tough PVC is used as the core layer, and the intermediate layer connecting the outer layer and the core layer to provide adhesive strength is polyester or polyester. And a mixture of polypropylene and co-extruded. However, such multi-layer coextrusion tube lacks compatibility between the resin component constituting the intermediate layer and the resin component constituting the inner layer and the inner layer, and thus has poor transparency. In particular, the inner layer that is in direct contact with the fluid injected into the body is an environmental pollution material. Since polyvinyl chloride is used, safety is still not secured, and a large amount of environmental pollutants are emitted during disposal.
이에, 본 발명은 상술한 종래기술의 문제점을 해결하기 위하여, PVC 소재를 전혀 사용하지 않기 때문에 인체에 전혀 무해하고 환경 친화적이며, 동시에 Non-PVC 필름과의 상용성 및 포오트와의 밀착력이 우수하여 누액의 우려가 전혀 없는 Non-PVC 수액백용 포오트 듀브를 제공하는데 그 목적이 있다.
Thus, in order to solve the above-mentioned problems of the prior art, since the PVC material is not used at all, it is completely harmless to the human body and is environmentally friendly, and at the same time, it has excellent compatibility with non-PVC film and adhesion with pot. The purpose is to provide a pot dive for non-PVC sap bag with no fear of leakage.
본 발명은 융점이 125∼165℃인 폴리프로필렌계 수지로 구성되고 두께가 튜브 단면 두께의 5∼40% 인 외층부와, 쇼아 D 경도가 70 이하인 폴리올레핀계 수지로 구성되고 두께가 튜브 단면 두께의 60∼95% 인 내층부로 이루어지는 것을 특징 으로 하는 Non-PVC 수액백용 포오트 튜브인 것이다. The present invention consists of a polypropylene resin having a melting point of 125 to 165 ° C., an outer layer portion having a thickness of 5 to 40% of a tube cross section thickness, and a polyolefin resin having a Shore D hardness of 70 or less, and a thickness of the tube cross section thickness. It is a pot tube for non-PVC sap bag, characterized in that the inner layer portion is 60 to 95%.
본 발명을 더욱 상세하게 설명하면 다음과 같다.The present invention is described in more detail as follows.
본 발명은 외층부와 내층부의 이중구조로 이루어 진다. 먼저 외층부는 융점이 125∼165℃인 폴리프로필렌계 수지로 이루어지며, 내열성 및 항복강도가 우수하고, Non-PVC 합성수지 필름으로 제조된 수액백과의 상용성이 우수한 특성을 갖는다. 상기 폴리프로필렌계 수지는 구체적으로 호모폴리프로필렌이나, 폴리프로필렌 공중합체 또는 이들의 혼합물을 사용할 수 있는데, 공중합체로는 랜덤 공중합체, 블록 공중합체 또는 그래프트 공중합체의 형태를 사용할 수 있다. 이때, 폴리프로필렌계 수지의 융점이 125℃ 미만이면 목적하는 내열성을 만족시킬 수 없고, 항복강도가 약하여 튜브의 외형을 유지하기 어려우며, 특히 살균 처리 중, 내열성 부족으로 튜브의 변형이 올수 있다. 반대로 융점이 165℃ 인 폴리프로필렌계 수지는 현실적으로 존재하지도 않을 뿐 아니라, 설사 존재한다 하더라도 작업성이 불량하여 사용이 불가 하다. The present invention consists of a double structure of the outer layer portion and the inner layer portion. First, the outer layer part is made of a polypropylene resin having a melting point of 125 to 165 ° C., and has excellent heat resistance and yield strength, and excellent compatibility with a sap bag made of a non-PVC synthetic resin film. Specifically, the polypropylene resin may be a homopolypropylene, a polypropylene copolymer or a mixture thereof. The copolymer may be in the form of a random copolymer, a block copolymer or a graft copolymer. At this time, if the melting point of the polypropylene resin is less than 125 ℃ the desired heat resistance can not be satisfied, the yield strength is weak to maintain the appearance of the tube, especially during sterilization treatment, the tube may be deformed due to lack of heat resistance. On the contrary, the polypropylene-based resin having a melting point of 165 ° C is not practically present, and even if it exists, it is impossible to use due to poor workability.
상기한 외층부의 두께는 튜브의 단면 두께에 대하여 5 ~ 40%, 바람직 하기로는 10 ~ 20 %의 범위로 하는 것이 가장 효과적이다. 만일 외층부의 두께가 5% 미만이면, 튜브의 형태를 유지하기 어렵고, 살균처리 중 내열성이 부족하여 튜브의 형태가 찌그러지거나 수축이 심하여, 기계적 물성은 물론 외관 상태가 불량해지며, 반대로 40% 를 초과하면 튜브 전체의 강도가 약하게 되고 유연성 및 탄성력이 저하되어 쉽게 꺽어지거나 투명도가 떨어질 수 있다. The thickness of the outer layer portion is most effectively in the range of 5 to 40%, preferably 10 to 20% of the thickness of the cross section of the tube. If the thickness of the outer layer is less than 5%, it is difficult to maintain the shape of the tube, and the heat resistance during the sterilization treatment is insufficient, so that the shape of the tube is distorted or severely contracted, resulting in poor mechanical properties and appearance. If exceeded, the strength of the entire tube is weakened, and the flexibility and elasticity are lowered, which may cause easy bending or lack of transparency.
다음으로, 본 발명의 내층부는 쇼아 D 경도(Shore D hardness)가 70 이하인 폴리올레핀계 수지로 구성되며, 유연성 및 복원력이 우수하고 외층부와의 상용성이 좋아서 층분리가 일어나지 않을 뿐 아니라, 포오트와의 밀착력이 우수한 특성을 갖는다. 상기 폴리올레핀계 수지의 예로서는 저밀도 폴리에틸렌, 선형 저밀도 폴리에틸렌, 에틸렌비닐아세테이트 및 에틸렌과 탄소수 3∼12개인 알파올레핀의 공중합체 중에서 선택된 어느 하나 또는 둘 이상의 혼합물을 사용할수 있다.Next, the inner layer part of the present invention is composed of a polyolefin resin having a Shore D hardness of 70 or less, and has excellent flexibility and restoring power and good compatibility with the outer layer part, and thus does not cause layer separation. The adhesive force with has excellent characteristics. As an example of the polyolefin resin, any one or a mixture of two or more selected from low density polyethylene, linear low density polyethylene, ethylene vinyl acetate, and a copolymer of ethylene and an alpha olefin having 3 to 12 carbon atoms can be used.
이때, 상기 탄소수 3∼12개 범위인 알파올레핀으로는 예컨대, 프로필렌, 1-부텐, 1-펜텐, 1-헥센, 4-메틸-1-펜텐, 1-헵텐, 1-옥텐, 1-노넨, 1-데센, 1-운데센 및 1-도데센 등이 있으며, 또한 에틸렌 초산비닐 공중합체, 에틸렌 메타아크릴산 공중합체, 에틸렌 메타아크릴산에스테르 공중합체, 에틸렌 스틸렌 공중합체, 프로필렌 스틸렌 공중합체, 프로필렌 에틸렌 부텐 공중합체, 프로필렌 스틸렌 에틸렌 부타디엔 공중합체, 에틸렌 메타아크릴산 메틸 공중합체, 에틸렌 메타아크릴산 에틸 공중합체, 에틸렌 프로필렌 디엔 공중합체, 열가소성 엘레스토마, 스틸렌계 엘레스토마, 기타 가교결합된 탄성체 등을 사용할 수 있다. 본 발명의 내층부에서 쇼아 D 경도가 70 이상이면 튜브 경도가 너무 높아 유연성 및 복원력이 부족하여 쉽게 꺽어질 수 있고, 포오트와의 밀착력이 떨어져 포오트가 빠지기 쉬워 좋지 않다. In this case, as the alpha olefin having a range of 3 to 12 carbon atoms, for example, propylene, 1-butene, 1-pentene, 1-hexene, 4-methyl-1-pentene, 1-heptene, 1-octene, 1-nonene, 1-decene, 1-undecene and 1-dodecene and the like, and also ethylene vinyl acetate copolymer, ethylene methacrylic acid copolymer, ethylene methacrylic acid ester copolymer, ethylene styrene copolymer, propylene styrene copolymer, propylene ethylene butene Copolymers, propylene styrene ethylene butadiene copolymers, ethylene methyl methacrylate copolymers, ethylene methacrylate acrylic copolymers, ethylene propylene diene copolymers, thermoplastic elastomers, styrene-based elastomers, other crosslinked elastomers, and the like. have. If the Shore D hardness is 70 or more in the inner layer portion of the present invention, the tube hardness is so high that the flexibility and the restoring force are insufficient, so that it can be easily bent, and the adhesion to the pot is poor, so that the pot is easy to fall out.
한편, 본 발명에서는 상기 내층부를 다시 이중구조로 형성할 수도 있다. 즉, 중간층은 상기 폴리올레핀계 수지 중에서 가격이 저렴하고 내열성이 비교적 약한 폴리프로필렌, 폴리에칠렌으로 이루어지고, 내층부는 포오트와의 밀착력이 좋은 폴리올레핀계 수지로서 저밀도 폴리에틸렌, 선형 저밀도 폴리에틸렌, 에틸렌비닐아세테이트 및 에틸렌과 탄소수 3∼12 개인 알파올레핀의 공중합체 중에서 선택된 어느 하나 또는 둘 이상의 혼합물을 사용할수 있다. 또한, 상기 중간층과 내층부 사이의 수지 성분이 달라서 서로 상용성이 부족할 경우에는 중간층을 타이층으로 사용할 수도 있으며, 이렇게 하면 다양한 수지를 사용하여 원하는 물성을 쉽게 얻을 수 있다.Meanwhile, in the present invention, the inner layer part may be formed in a double structure again. That is, the middle layer is made of polypropylene and polyethylene having low cost and relatively low heat resistance among the polyolefin resins, and the inner layer part is a polyolefin resin having good adhesion to potents, and is made of low density polyethylene, linear low density polyethylene, ethylene vinyl acetate and ethylene. One or a mixture of two or more selected from copolymers of alpha olefins having 3 to 12 carbon atoms can be used. In addition, when the resin component between the intermediate layer and the inner layer part is different and lacks compatibility with each other, the intermediate layer can also be used as a tie layer, it is possible to easily obtain the desired physical properties by using a variety of resin.
본 발명의 포오트용 튜브를 제조하는 방법을 간단히 설명하면 다음과 같다.Brief description of the method of manufacturing the potting tube of the present invention as follows.
본 발명의 튜브는 압출기를 이용하여 원료 수지를 200 ~ 220℃ 로 용융 압출시킨다. 적당한 크기의 다이 핀 및 부싱을 통해 압출된 후, 냉각조에서 1차 성형되고, 고무 및 실리콘으로 된 1차 인취롤을 지나 가열조를 거친 다음, 2차 인취롤에서 적당한 직경의 튜브로 제조된다. 튜브의 매모리 효과를 극복하기 위하여 용융온도 보다 낮은 온도로 가열되는 열고정조를 거쳐서 적당한 길이로 절단하면 본 발명의 튜브가 제조된다. The tube of this invention melt-extrudes raw material resin at 200-220 degreeC using an extruder. Extruded through die pins and bushings of appropriate size, firstly molded in a cooling bath, passed through a first takeover roll of rubber and silicone, and then made into tubes of suitable diameter on a second takeover roll. . In order to overcome the memory effect of the tube, the tube of the present invention is produced by cutting to an appropriate length through a heat setting bath which is heated to a temperature lower than the melting temperature.
이와 같은 본 발명을 다음 실시예에 의하여 구체적으로 설명한다. 그러나, 본 발명이 다음 실시예에 의하여 한정되는 것은 아니다.The present invention will be described in detail by the following examples. However, the present invention is not limited by the following examples.
실시예 1Example 1
내층부 소재로는 에틸렌계 공중합체인 다우 케미칼 컴파니의 "AFFINITY" KC8852[밀도 0.875 g/㎤, MFR 3.0 g/10min(190℃, 2.16Kg)]를 사용하고, 외층부 소재로는 랜덤폴리프로필렌인 LG칼텍스정유의 R145D[밀도 0.900 g/㎤, MFR 8.0 g/10min(230℃, 2.16 Kg), 녹는점 약 145 ]를 사용하되, 압출기 온도 170 ∼ 230 의 조건에서 내층부가 튜브 단면 두께의 60%가 되고, 외층부가 나머지 40%로 되도록 공압출하여 외경이 8.2mm, 내경이 6.2mm인 튜브를 제조하였다. Inner layer material uses "AFFINITY" KC8852 (density 0.875 g / cm 3, MFR 3.0 g / 10min (190 ° C, 2.16Kg)) of Dow Chemical Company as an ethylene copolymer, and random polypropylene as outer material. R145D [density 0.900 g / cm 3, MFR 8.0 g / 10min (230 ° C., 2.16 Kg), melting point about 145] of LG Caltex Refinery Co., Ltd. It became% and coextruded so that the outer layer part might be 40%, and the outer diameter was 8.2 mm, and the inner diameter was 6.2 mm.
실시예 2Example 2
내층부 소재로는 에틸렌계 공중합체인 다우 케미칼 컴파니의 "AFFINITY" KC8852[밀도 0.875 g/㎤, MFR 3.0 g/10min(190℃, 2.16Kg)]를 사용하고, 중간층 소재로는 다우 케미칼 컴파니의 "DOWLEX" 2027A(밀도 0.941 g/㎤, MFR 4.0 g/10min (190℃, 2.16 Kg), 녹는점 약 127 ]를 사용하며, 외층부 소재로는 랜덤 폴리프로필렌인 LG칼텍스정유의 R145D[밀도 0.900 g/㎤, MFR 8.0 g/10min(230℃, 2.16 Kg), 녹는점 약 145 ]를 사용하되, 압출기 온도 170 ∼ 230 의 조건에서 중간층이 튜브 단면 두께의 60%가 되고, 외층부 및 내층부가 각각 20%로 되도록 공압출하여 외경이 8.2mm, 내경이 6.2mm인 튜브를 제조하였다. For the inner layer material, Dow Chemical Company's "AFFINITY" KC8852 (density 0.875 g / cm 3, MFR 3.0 g / 10min (190 ° C, 2.16Kg)), an ethylene copolymer, was used. "DOWLEX" 2027A (density 0.941 g / cm 3, MFR 4.0 g / 10min (190 ° C, 2.16 Kg), melting point approx. 127] and R145D [density of LG Caltex Essential Oil] 0.900 g / cm 3, MFR 8.0 g / 10min (230 ° C., 2.16 Kg), melting point about 145], with the intermediate layer at 60% of the tube cross-sectional thickness under the conditions of an extruder temperature of 170 to 230, and the outer and inner layers Coextrusion was carried out so that the additions were 20%, respectively, to prepare a tube having an outer diameter of 8.2 mm and an inner diameter of 6.2 mm.
비교예 1Comparative Example 1
랜덤 폴리프로필렌인 LG칼텍스정유의 R145D[밀도 0.900 g/㎤, MFR 8.0 g/10min(230℃, 2.16 Kg), 녹는점 약 145℃]를 단일층으로 압출하여 실시예1과 동 일한 방법으로 튜브를 제조하였다. The same method as in Example 1 was carried out by extruding R145D (density 0.900 g / cm 3, MFR 8.0 g / 10min (230 ° C., 2.16 Kg), melting point about 145 ° C.) of LG Caltex Refinery, a random polypropylene, into a single layer. Was prepared.
비교예 2Comparative Example 2
에틸렌계 공중합체인 다우 케미칼 컴파니의 "DOWLEX" 2027A[밀도 0.941 g/㎤, MFR 4.0 g/10min(190℃, 2.16 Kg), 녹는점 약 127℃]를 단일층으로 압출하여 실시예1과 동일한 방법으로 튜브를 제조하였다. Dow Chemical Company's "DOWLEX" 2027A (density 0.941 g / cm 3, MFR 4.0 g / 10min (190 ° C, 2.16 Kg), melting point about 127 ° C), an ethylene-based copolymer, was extruded into a single layer, the same as in Example 1. The tube was prepared by the method.
비교예 3Comparative Example 3
내층부 소재로서 에틸렌계 공중합체인 다우 케미칼 컴파니의 "AFFINITY" KC8852(밀도 0.875 g/㎤, MFR 3.0 g/10min(190℃, 2.16Kg)]를 사용하고, 외층부 소재로서 호모폴리프로필렌인 삼성종합화학의 HF420(밀도 0.900 g/㎤, MFR 8.0 g/10min(230℃, 2.16 Kg), 녹는점 약 161℃]를 사용하되, 내층부의 두께를 튜브 단면 두께의 40%, 외층부의 두께를 나머지 60%로 되도록 공압출하여 상기 실시예1과 동일한 방법으로 튜브를 제조하였다. Samsung's homopolypropylene is used as the outer layer material using "AFFINITY" KC8852 (density 0.875 g / cm3, MFR 3.0 g / 10min (190 ° C, 2.16Kg)) of Dow Chemical Company as an inner layer material. Use HF420 (density 0.900 g / cm3, MFR 8.0 g / 10min (230 ° C, 2.16 Kg), melting point about 161 ° C) of General Chemistry, with the inner layer thickness being 40% of the tube cross-sectional thickness and the outer layer thickness remaining. Coextruded to 60% to prepare a tube in the same manner as in Example 1.
비교예 4Comparative Example 4
내층부 소재로서 에틸렌계 공중합체인 다우 케미칼 컴파니의 "AFFINITY" KC8852(밀도 0.875 g/㎤, MFR 3.0 g/10min(190℃, 2.16Kg)]를 사용하고, 외층부 소재로서 호모폴리프로필렌인 삼성종합화학의 HF420(밀도 0.900 g/㎤, MFR 8.0 g/10min(230℃, 2.16 Kg), 녹는점 약 161℃]과 에틸렌계 공중합체인 다우 케미칼 컴파니의 "AFFINITY" KC8852(밀도 0.875 g/㎤, MFR 3.0 g/10min(190℃, 2.16Kg)]를 1 : 1 의 비율로 블렌딩하여 사용하되, 내층부의 두께를 튜브 단면 두께의 40%, 외층부의 두께를 나머지 60%로 되도록 공압출하여 상기 실시예1과 동일한 방법으로 튜브를 제조하였다. Samsung's homopolypropylene is used as the outer layer material using "AFFINITY" KC8852 (density 0.875 g / cm3, MFR 3.0 g / 10min (190 ° C, 2.16Kg)) of Dow Chemical Company as an inner layer material. Total chemical HF420 (density 0.900 g / cm3, MFR 8.0 g / 10min (230 ° C, 2.16 Kg), melting point approx. 161 ° C) and "AFFINITY" KC8852 from Dow Chemical Company (density 0.875 g / cm3) , MFR 3.0 g / 10min (190 ℃, 2.16Kg)] is used by blending in a ratio of 1: 1, by co-extrusion so that the thickness of the inner layer portion 40% of the tube cross-sectional thickness, the thickness of the outer layer portion to the remaining 60%. A tube was prepared in the same manner as in Example 1.
[표 1]TABLE 1
(NB) 상기 표 1에서, PE(1)은 "AFFINITY" KC8852, PE(2)는 "DOWLEX" 2027A, PP(1)은 삼성종합화학의 HF420, PP(2)는 LG칼텍스정유의 R145D를 나타낸다. (NB) In Table 1, PE (1) is "AFFINITY" KC8852, PE (2) is "DOWLEX" 2027A, PP (1) is HF420 of Samsung General Chemicals, PP (2) is LG Caltex Oil R145D Indicates.
실험예Experimental Example
상기 실시예 1 ∼ 2 및 비교예 1 ∼ 4 에 따라 제조된 튜브를 사용하여 다음의 방법으로 물성을 측정하였으며, 그 결과를 다음 표 2에 나타내었다.Physical properties of the tubes prepared according to Examples 1 and 2 and Comparative Examples 1 and 4 were measured by the following methods, and the results are shown in Table 2 below.
먼저, 용융지수는 특정 압력(2.16 ㎏/㎠) 및 온도(PP: 230 , PE: 190 )에서 10분내 지름 2.09 mm의 구멍(orifice)을 통과해서 나오는 열가소성 수지의 양(g)을 의미하는 것으로, ASTM D-1238법으로 230 에서 측정한 결과이며, 용융온도는 ASTM D-2117법에 의거하여 DSC 사용하여 측정한 결과이다.First, the melt index refers to the amount of thermoplastic resin (g) exiting through an orifice having a diameter of 2.09 mm in 10 minutes at a specific pressure (2.16 kg / cm 2) and temperature (PP: 230, PE: 190). , ASTM D-1238 was measured at 230, and melting temperature was measured using DSC according to ASTM D-2117.
상기 조건에 따라 제조된 튜브 샘플에 대해 강도 및 굳기를 체크하기 위하여 샘플을 분당 100cm(20 inch)의 크로스헤드(Crosshead) 속도에서 인스트론(Instron) 시험기로 100% 신장시의 응력을 측정하고 이를 항복 강도(kgf/㎠)로 나타내었다.To check the strength and stiffness of a tube sample prepared according to the above conditions, the sample was measured at 100% elongation with an Instron tester at a crosshead speed of 100 cm (20 inches) per minute and then Yield strength (kgf / cm 2).
또한, 각 군의 튜브에 대한 튜브 길이를 측정하고, 튜브 샘플을 약 120 및 20분 동안 오토클레이브를 이용하여 멸균한 다음, 튜브 샘플을 꺼내어 주위 온도로 냉각 하여 다시 샘플의 길이를 측정하고, 수축율을 다음 표2 에 나타내었다. In addition, the tube length for each group of tubes was measured, the tube sample was sterilized using an autoclave for about 120 and 20 minutes, then the tube sample was taken out and cooled to ambient temperature again measuring the length of the sample, the shrinkage rate Is shown in Table 2 below.
투명도는 육안으로 상대 비교 후 체크하였으며, 꺽임성 및 탄력성은 튜브 샘플을 직각으로 꺽은 후 회복되는 정도로 체크하였고, 포트와의 밀착성은 자동 포밍머신에서 자동으로 포트를 튜브에 꽂은 후 빼어 보았을 때 빠지는 정도로 체크하였다. 마지막으로 수액백 원단과 튜브와의 열접착성은 자동 포밍머신을 이용하여 융착 후 밀봉상태를 육안으로 체크하였다. Transparency was checked after relative comparison with the naked eye, and bending and elasticity were checked to the extent that the tube sample was recovered after bending at right angles. Adhesiveness with the port was automatically removed by plugging the port into the tube after automatic forming machine. Checked to the extent. Finally, the thermal adhesion between the sap bag fabric and the tube was visually checked for sealing after fusion using an automatic forming machine.
[표 2]TABLE 2
상기 표 2에 나타낸 바와 같이, 본 발명의 실시예 1 ∼ 2에 따라 제조된 튜브는 항복강도가 적절하게 측정되었으며, 투명도, 밀착성, 열접착성이 비교예 1 ∼ 4에 따라 제조된 튜브보다 뛰어나며, 꺽임성 및 탄력성도 우수한 것으로 나타났다.As shown in Table 2, the tube produced according to Examples 1 to 2 of the present invention was properly measured yield strength, transparency, adhesion, heat adhesion is superior to the tube prepared according to Comparative Examples 1-4 It was also found to be excellent in bending and elasticity.
상술한 바와 같이, 본 발명의 포오트용 튜브는 2층 또는 3층 구조로 공압출된 Non-PVC 튜브로서, 내열성, Non-PVC 수액백과의 접착성, 포트와의 밀봉성, 투명성등이 우수하고, 특히 최근 환경친화적인 신소재로 각광받고 있는 Non-PVC 수액백에 설치하더라도 기밀성 있는 접착이 가능하기 때문에 수액, 혈액 등을 저장, 보관하는 의료용 Non-PVC백에는 물론, 기타 식품 포장용기에도 다양하게 이용될수 있다.As described above, the potting tube of the present invention is a non-PVC tube coextruded in a two-layer or three-layer structure, and has excellent heat resistance, adhesiveness with a non-PVC sap bag, sealing with a port, transparency, and the like. In particular, it is possible to adhere to the non-PVC sap bag, which has recently been spotlighted as a new environmentally friendly material, so that it can be adhered to airtightly. Can be used.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040092043A KR100653407B1 (en) | 2004-11-11 | 2004-11-11 | Port tube for non-PVC bags |
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| KR1020040092043A KR100653407B1 (en) | 2004-11-11 | 2004-11-11 | Port tube for non-PVC bags |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993023093A1 (en) | 1992-05-14 | 1993-11-25 | Baxter International Inc. | Non-pvc coextruded medical grade port tubing |
| WO2002053359A1 (en) | 2001-01-08 | 2002-07-11 | Baxter International Inc. | Port tube and closure composition, structure and assembly for a flowable material container |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993023093A1 (en) | 1992-05-14 | 1993-11-25 | Baxter International Inc. | Non-pvc coextruded medical grade port tubing |
| WO2002053359A1 (en) | 2001-01-08 | 2002-07-11 | Baxter International Inc. | Port tube and closure composition, structure and assembly for a flowable material container |
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