KR102321938B1 - Manufacturing method of eco-friendly plastic bags using seaweeds and vegetable raw materials - Google Patents
Manufacturing method of eco-friendly plastic bags using seaweeds and vegetable raw materials Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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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
- 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
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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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
- 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
- B29C48/28—Storing of extruded material, e.g. by winding up or stacking
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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
- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
본 발명은 해조류와 식물성 원료를 이용한 비닐봉투 제조방법에 관한 것으로, 생분해성 고분자 수지, 해조류 및 카사바를 준비하는 단계(a); 해조류, 카사바 및 고분자 수지를 포함하고 혼합하여 혼합물 형성하는 혼합단계(b); 상기 혼합물을 건조기에 공급하여 건조하는 혼합물 수분제거단계(c); 상기 건조된 혼합물을 다이스를 통해 압출하고, 블로운 부분을 통과시켜 원통형으로 성형되는 압출성형단계(d); 상기 압출성형 된 것을 냉각하고 닙롤에 의해 포개져 권취하는 원단회수단계(e); 및 상기 권취된 원단을 리와인딩 시키면서 일반 규격에 맞게 절취 및 펀칭하는 가공단계(f); 를 포함하는 것을 특징으로 하여 종래 일반 비닐봉투 보다 친환경 원료를 100% 이용함으로써 일정한 기계적 강도를 갖으며, 자연상태에서 생분해됨으로써 친환경적인 효과가 있다.The present invention relates to a method for manufacturing a plastic bag using seaweed and vegetable raw materials, comprising the steps of: (a) preparing a biodegradable polymer resin, seaweed and cassava; A mixing step (b) of including and mixing seaweed, cassava and a polymer resin to form a mixture; a water removal step (c) of supplying the mixture to a dryer and drying the mixture; an extrusion molding step (d) of extruding the dried mixture through a die, and passing through a blown part to form a cylindrical shape; a fabric recovery step (e) of cooling the extruded thing and wrapping it up by a nip roll; And a processing step (f) of cutting and punching according to the general standard while rewinding the wound fabric; It has a certain mechanical strength by using 100% of eco-friendly raw materials than conventional plastic bags, and has an eco-friendly effect by being biodegradable in a natural state.
Description
본 발명은 해조류와 식물성 원료를 이용한 친환경 비닐봉투의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing an eco-friendly plastic bag using seaweed and vegetable raw materials.
일반적으로, 비닐 봉투는 얇고 투명한 필름 형태로서, 가볍고 내구성, 내약품성 및 기계적 성질이 우수하여 공업용(예를 들면, 포장, 방수 등), 농업용(예를 들면, 작물의 보온 및 생육 촉진 등), 일상생활용(예를 들면, 각종 봉투) 등으로 널리 사용되고 있어, 우리 생활 주변에서 매우 빈번하게 사용되는 생활필수품으로 자리 잡고 있다.In general, a plastic bag is in the form of a thin and transparent film, which is light and has excellent durability, chemical resistance and mechanical properties, so that it is used for industrial (eg, packaging, waterproofing, etc.), agricultural (eg, warming and growth promotion of crops, etc.), It is widely used for daily life (for example, various envelopes), etc., and is positioned as a daily necessities used very frequently around our lives.
특히, 근래에는 온라인 구매가 폭발적으로 증가하고 있고 온라인으로 구매된 제품은 대부분 포장용 봉투 등에 의해 포장되어 배송되기 때문에 포장용 또는 택배용 비닐 봉투의 수요도 급증하고 있는 실정이다.In particular, in recent years, online purchases are explosively increasing, and since most products purchased online are packaged and delivered by packaging bags, the demand for plastic bags for packaging or delivery is also rapidly increasing.
그러나 대량으로 버려지는 각종 폐비닐의 소각이나 매립에 따른 환경 호르몬의 누출, 맹독성의 다이옥신 검출, 폐기물의 불완전 연소에 의한 대기오염 발생 등이 심각한 환경오염의 원인으로 이어지고 있다.However, environmental hormone leakage due to incineration or landfill of various waste plastics thrown away in large quantities, detection of highly toxic dioxins, and air pollution caused by incomplete combustion of waste are leading to serious environmental pollution.
따라서, 일정한 기계적 강도를 갖으며, 생분해성을 갖는 환경 친화적인 비닐 봉투 제조방법에 대한 연구가 필요한 실정이다.Therefore, there is a need for research on an environmentally friendly plastic bag manufacturing method having a certain mechanical strength and biodegradability.
본 발명의 목적은 해조류 및 카사바의 친환경 원료만을 이용함으로써 일정한 기계적 강도를 갖으며, 생분해성을 갖는 환경 친화적인 비닐봉투 제조방법을 제공하는 데에 있다.An object of the present invention is to provide an environmentally friendly plastic bag manufacturing method having a certain mechanical strength and biodegradability by using only eco-friendly raw materials of seaweed and cassava.
상기 목적을 달성하기 위하여, 본 발명은 생분해성 고분자 수지, 해조류 및 카사바를 준비하는 단계(a); 해조류, 카사바 및 고분자 수지를 포함하고 혼합하여 혼합물 형성하는 혼합단계(b); 상기 혼합물을 건조기에 공급하여 건조하는 혼합물 수분제거단계(c); 상기 건조된 혼합물을 다이스를 통해 압출하고, 블로운 부분을 통과시켜 원통형으로 성형되는 압출성형단계(d); 상기 압출성형 된 것을 냉각하고 닙롤에 의해 포개져 권취하는 원단회수단계(e); 및 상기 권취된 원단을 리와인딩 시키면서 일반 규격에 맞게 절취 및 펀칭하는 가공단계(f); 를 포함하는 것을 특징으로 하는 해조류와 식물성 원료를 이용한 비닐봉투 제조방법을 제공한다.In order to achieve the above object, the present invention comprises the steps of preparing a biodegradable polymer resin, seaweed and cassava (a); A mixing step (b) of including and mixing seaweed, cassava and a polymer resin to form a mixture; a water removal step (c) of supplying the mixture to a dryer and drying the mixture; an extrusion molding step (d) of extruding the dried mixture through a die, and passing through a blown part to form a cylindrical shape; a fabric recovery step (e) of cooling the extruded thing and wrapping it up by a nip roll; And a processing step (f) of cutting and punching according to the general standard while rewinding the wound fabric; It provides a method for manufacturing a plastic bag using seaweed and vegetable raw materials, characterized in that it comprises a.
생분해성 고분자 수지, 해조류 및 카사바를 이용하여 본 발명에 따른 제조방법으로 제조된 비닐봉투는 종래 일반 비닐봉투 보다 친환경 원료를 100% 이용함으로써 일정한 기계적 강도를 갖으며, 자연상태에서 생분해됨으로써 친환경적인 효과가 있다.The plastic bag manufactured by the manufacturing method according to the present invention using biodegradable polymer resin, seaweed, and cassava has a certain mechanical strength by using 100% of eco-friendly raw materials than conventional plastic bags, and is biodegradable in a natural state, so it is environmentally friendly there is
도 1은 본 발명에 따른 해조류 및 카사바를 이용한 비닐봉투 제조방법을 나타낸 도면이다.
도 2는 본 발명에 따른 해조류 및 카사바를 이용한 비닐봉투 제조를 위한 장치를 나타낸 도면이다.
도 3은 본 발명에 따른 해조류 및 카사바를 이용하여 제조된 비닐봉투의 기계적 물성 결과를 나타낸 도면이다.1 is a view showing a method for manufacturing a plastic bag using seaweed and cassava according to the present invention.
2 is a view showing an apparatus for manufacturing a plastic bag using seaweed and cassava according to the present invention.
3 is a view showing the results of mechanical properties of the plastic bag manufactured using seaweed and cassava according to the present invention.
이하에서는 본 발명을 구체적으로 설명한다.Hereinafter, the present invention will be described in detail.
본 발명자들은 생분해성 고분자 수지, 해조류 및 카사바를 이용하여 본 발명에 따른 제조방법으로 제조된 비닐봉투는 종래 일반 비닐봉투 보다 친환경 원료를 100% 이용함으로써 일정한 기계적 강도를 갖으며, 자연상태에서 생분해됨으로써 친환경적인 효과가 있음을 밝혀내어 본 발명을 완성하였다.The present inventors found that the plastic bag manufactured by the manufacturing method according to the present invention using biodegradable polymer resin, seaweed and cassava has a certain mechanical strength by using 100% of eco-friendly raw materials than conventional plastic bags, and is biodegradable in a natural state. The present invention was completed by revealing that there is an eco-friendly effect.
본 발명은 생분해성 고분자 수지, 해조류 및 카사바를 준비하는 단계(a); 해조류, 카사바 및 고분자 수지를 포함하고 혼합하여 혼합물 형성하는 혼합단계(b); 상기 혼합물을 건조기에 공급하여 건조하는 혼합물 수분제거단계(c); 상기 건조된 혼합물을 다이스를 통해 압출하고, 블로운 부분을 통과시켜 원통형으로 성형되는 압출성형단계(d); 상기 압출성형 된 것을 냉각하고 닙롤에 의해 포개져 권취하는 원단회수단계(e); 및 상기 권취된 원단을 리와인딩 시키면서 일반 규격에 맞게 절취 및 펀칭하는 가공단계(f); 를 포함하는 것을 특징으로 하는 해조류와 식물성 원료를 이용한 비닐봉투 제조방법을 제공한다.The present invention comprises the steps of (a) preparing a biodegradable polymer resin, seaweed and cassava; A mixing step (b) of including and mixing seaweed, cassava and a polymer resin to form a mixture; a water removal step (c) of supplying the mixture to a dryer and drying the mixture; an extrusion molding step (d) of extruding the dried mixture through a die, and passing through a blown part to form a cylindrical shape; a fabric recovery step (e) of cooling the extruded thing and wrapping it up by a nip roll; And a processing step (f) of cutting and punching according to the general standard while rewinding the wound fabric; It provides a method for manufacturing a plastic bag using seaweed and vegetable raw materials, characterized in that it comprises a.
바람직하게 상기 해조류 및 카사바는 추출물일 수 있으나, 이에 제한되는 것은 아니다.Preferably, the seaweed and cassava may be extracts, but the present invention is not limited thereto.
또한, 상기 생분해성 고분자는 폴리비닐알콜, 폴리하이드록시알카노에이트, 폴리카프로락톤, 폴리글리콜산, 폴리에틸렌옥사이드, 폴리아닐린, 폴리카보네이트, 폴리에틸렌글리콜, 폴리트리메틸렌테레프탈레이트, 폴리히드록시부틸레이트 및 폴리다이옥사논으로 이루어진 군에서 선택된 하나 이상의 고분자인 것을 특징으로 하나, 비닐봉투 제조에 이용되는 생분해성 고분자면 제한 없이 이용 가능하다.In addition, the biodegradable polymer is polyvinyl alcohol, polyhydroxyalkanoate, polycaprolactone, polyglycolic acid, polyethylene oxide, polyaniline, polycarbonate, polyethylene glycol, polytrimethylene terephthalate, polyhydroxybutyrate and poly It is characterized in that it is one or more polymers selected from the group consisting of dioxanone, but biodegradable polymers used for the manufacture of plastic bags can be used without limitation.
또한, 상기 생분해성 고분자 수지 100 중량부에 대하여 해조류 및 카사바를 0.1 내지 10 중량부로 혼합하는 것을 특징으로 한다.In addition, it is characterized in that 0.1 to 10 parts by weight of seaweed and cassava are mixed with respect to 100 parts by weight of the biodegradable polymer resin.
또한, 상기 수분제거 단계는 80 ~ 110℃의 온도로 건조하는 것을 특징으로 하며, 상기 압출은 160 ~ 200℃의 온도로 50 ~ 60 rpm에서 수행하는 것을 특징으로 한다.In addition, the moisture removal step is characterized in that the drying at a temperature of 80 ~ 110 ℃, the extrusion is characterized in that it is performed at a temperature of 160 ~ 200 ℃ 50 ~ 60 rpm.
이때, 상기 조건을 벗어나면 본 발명에 따른 기계적 강도 및 생분해성이 우수한 비닐봉투가 제대로 형성되지 않는 문제가 야기될 수 있다.At this time, if the above conditions are exceeded, a problem may be caused in that the plastic bag having excellent mechanical strength and biodegradability according to the present invention is not properly formed.
또한, 상기 해조류는 파래, 김, 톳, 다시마, 미역, 꼬시래기, 도박 및 큰실말로 이루어진 군에서 선택된 하나 이상의 해조류인 것을 특징으로 하며, 상기 비닐봉투는 황토, 숯, 게르마늄, 은 및 옥으로 이루어진 군에서 선택된 음이온 및 원적외선 방사 물질을 더 포함할 수 있다.In addition, the seaweed is characterized in that at least one seaweed selected from the group consisting of green seaweed, seaweed, seaweed, kelp, seaweed, seaweed, gambler, and kelp, and the plastic bag is a group consisting of loess, charcoal, germanium, silver and jade. It may further include an anion and a far-infrared emitting material selected from.
따라서 본 발명에 따라 제조된 비닐봉투는 물, 미생물 및 효소 등의 분해작용에 의해 최종적으로 물, 이산화탄소 및 바이오매스 등으로 완전 생분해가 가능하고, 음이온 및 원적외선 방사 기능에 의한 혈액순환 개선 등의 건강기능성이 뛰어난 효과를 갖을 수 있다.Therefore, the plastic bag manufactured according to the present invention can be completely biodegradable into water, carbon dioxide and biomass by the decomposition action of water, microorganisms and enzymes, etc. It can have an excellent effect of functionality.
본 발명에 따른 비닐봉투를 제조하는 방법은 압출방식이 사용되는 것으로, 압출방식은 용융된 수지를 원형 다이를 통해 튜브형태의 원통형 필름을 상측으로 뽑아올리면서 제조하며, 이때 상기 튜브형태의 원통형 필름의 내부에서는 일정온도와 압력으로 공기를 불어 넣어 주면서 필름의 두께와 생산성 향상을 높일 수 있는데 생산성 향상을 위해 빠른 속도로 뽑아 올리면 튜브형태의 원통형 필름의 표면에 미세한 스크레치가 발생될 수 있다. The method for manufacturing a plastic bag according to the present invention is to use an extrusion method, in which the molten resin is produced by pulling up a tube-shaped cylindrical film upward through a circular die, in which case the tube-shaped cylindrical film The thickness and productivity of the film can be improved by blowing air at a constant temperature and pressure inside the tube. If it is pulled up at a high speed to improve productivity, minute scratches may occur on the surface of the tube-shaped cylindrical film.
따라서 일정한 온도와 압력으로 공기를 불어주어야 하고, 상측으로 뽑아 올리는 속도 또한 일정하게 유지되어야 하며, 이를 위하여 튜브형태의 원통형 필름의 인장강도와 치밀도가 유지되어야 하는 것이다.Therefore, it is necessary to blow air at a constant temperature and pressure, and the upward pulling speed must also be maintained constant. For this, the tensile strength and density of the tube-shaped cylindrical film must be maintained.
즉, 압출에 의한 튜브형태의 원통형 필름의 제조방식은 원형의 다이스에서 인출되는 튜브형태의 원통형 필름은 공기가 주입되면서 폭이 결정되고, 이를 상부로 뽑아올리면서 경화를 위한 냉각을 위하여 일정한 높이의 냉각탑이 구비되고, 상기 냉각탑으로 걸쳐지는 튜브형태의 원통형 필름은 지면에 설치되어있는 권취라인을 통하여 원하는 길이로 권취하게 되는 것이다.In other words, in the manufacturing method of the tube-shaped cylindrical film by extrusion, the tube-shaped cylindrical film drawn out from the circular die has a width determined as air is injected, and is pulled up to a certain height for cooling for curing. A cooling tower is provided, and the tube-shaped cylindrical film spanned by the cooling tower is wound to a desired length through a winding line installed on the ground.
상기 압출성형단계에서 원료 용융을 위한 압출기의 배럴내의 온도를 160~200 ℃로 설정하고, 압출을 위한 스크류 속도는 50~60 rpm을 유지하며, 용융된 원료에서 불순물을 제거하기 위하여 압출기 다이스의 전단에 일체형으로 이루어진 다층 스크린 메쉬를 탈착가능하게 장착하여 압출성형이 이루어지도록 한 것이다.In the extrusion molding step, the temperature in the barrel of the extruder for melting the raw material is set to 160 ~ 200 ℃, the screw speed for extrusion is maintained at 50 ~ 60 rpm, and shear of the extruder die to remove impurities from the molten raw material Extrusion molding is made by detachably mounting a multi-layer screen mesh made of an integral part to the .
제조장치로는 비닐봉투원료를 혼합하는 배합기, 배합기에서 배합된 원료의 수분제거를 위한 건조기와 건조기에서 건조된 원료를 호퍼에 공급하고 이를 실린더로 주입시킨 후, 스크류에 의해 성형 금형으로 원료를 공급하는 튜브원료공급장치를 포함한다.Manufacturing equipment includes a blender that mixes plastic bag raw materials, a dryer for removing moisture from raw materials blended in the blender, and supplies the raw material dried in the dryer to the hopper, injects it into the cylinder, and then supplies the raw material to the molding die by means of a screw. It includes a tube raw material supply device.
성형 금형은 원료를 원형 튜브의 형상으로 안내하는 금형(다이)이 설치되며, 튜브를 중앙으로 위치되도록 안내하는 닙롤 및 닙롤을 통과한 원단이 가이드롤러들에 의하여 권취롤러로 안내되어 원단을 감아 보관하게 되며, 권취롤러에 권취되어 제조가 완료된 비닐 원단은 절단기가 설치된 후공정으로 이동되어 지정된 사이즈에 맞추어 재단하고 융착시킨 후 절취 및 펀칭되어 권취되어진 비닐봉투가 제조완료된다.A mold (die) is installed to guide the raw material in the shape of a circular tube, and the nip roll that guides the tube to be positioned in the center and the fabric passing the nip roll are guided to the winding roller by the guide rollers, and the fabric is wound and stored. The vinyl fabric wound on the winding roller and manufactured is moved to the post-process after the cutter is installed, cut to the specified size, fused, cut and punched, and the wound plastic bag is manufactured.
압출성형단계는 건조된 혼합물을 압출기 호퍼를 통해 공급하여 160 ~ 200℃의 온도의 용융 압출장치에 투입하여 겔형의 액상형태로 용융시킨 압출기 내부에 설치되어있는 스크류에 의해 금형(다이)로 압입된다. 공기주입구로 공기를 주입시키면 맨드릴부에서 용융된 수지가 팽창되어 튜브형태의 원통형 필름으로 연속 성형되면서 상방으로 이동한다. 성형된 필름은 한쌍의 닙롤을 통과하며 통과속도에 따라 압착되어 두께를 조절하고 전면과 후면이 포개진 얇은 두께의 시트 형태로 변형된 다음 다수의 가이드롤러에 의해 이동한다. 이 과정 중 공기에 의해 20 ~ 26℃로 추가 냉각이 되며, 권취롤러로 안내되어 원단을 감아 보관된다. 권취된 비닐원단을 풀면서 일정 간격으로 융착하여 융착선을 형성함과 동시에 상기 융착선과 인접하여 상기 필름을 절단하여 일축이 개방된 사각의 봉투로 가공되며 개봉된 부분을 재단하여 링고리, 양날손잡이, 일반 재단 등의 규격에 맞게 펀칭하는 가공의 단계를 거친다.In the extrusion molding step, the dried mixture is supplied through the extruder hopper, put into a melt extrusion device at a temperature of 160 ~ 200 ° C, and melted in a gel-like liquid form. . When air is injected through the air inlet, the molten resin in the mandrel part expands and moves upward while continuously forming into a tube-shaped cylindrical film. The molded film passes through a pair of nip rolls and is compressed according to the passing speed to adjust the thickness, and is transformed into a thin sheet with the front and back sides overlapped, and then moved by a plurality of guide rollers. During this process, it is further cooled to 20 ~ 26℃ by air, and is guided by a winding roller to wind and store the fabric. While unwinding the wound vinyl fabric, it fuses at regular intervals to form a fusion line, and at the same time cuts the film adjacent to the fusion line and processes it into a rectangular envelope with one axis open. , and goes through the process of punching to meet the standards of general cutting.
이하, 실시예를 통하여 본 발명을 더욱 상세히 설명하고자 한다. 이들 실시예는 오로지 본 발명을 보다 구체적으로 설명하기 위한 것으로, 본 발명의 요지에 따라 본 발명의 범위가 이들 실시예에 의해 제한되지 않는다는 것은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 있어서 자명할 것이다.Hereinafter, the present invention will be described in more detail through examples. These examples are only for explaining the present invention in more detail, and it is to those of ordinary skill in the art to which the present invention pertains that the scope of the present invention is not limited by these examples according to the gist of the present invention. it will be self-evident
<실시예 1><Example 1>
파래, 김, 톳, 다시마 및 카사바를 물로 씻어 이물질을 제거한 후 건조하였다. 상기 건조물을 적당한 크기로 분쇄하여 10g을 추출용기에 넣은 후 에탄올(95%) 500mL를 가하여 환류 냉각추출하고, 여과하여 추출물을 얻었다. 추출과정은 3회 반복하였다.Green onions, seaweed, seaweed, kelp and cassava were washed with water to remove foreign substances and then dried. The dried material was ground to an appropriate size, 10 g was put into an extraction container, 500 mL of ethanol (95%) was added, extracted under reflux, and filtered to obtain an extract. The extraction process was repeated 3 times.
상기 파래, 김, 톳, 다시마 및 카사바 추출물 1g과 생분해성 고분자인 폴리비닐알콜 100g을 슈퍼믹서(super mixer)를 이용하여 10분간 혼합한 후, 건조기에 공급하여 100℃에서 건조시켰다. 이후, 상기 건조된 혼합물을 호퍼를 통해 공급하여 180℃의 온도로 실린더를 통과하여 겔형의 액상형태로 용융시킨 후, 스크류(screw)를 가지는 이축 압출기를 이용하여 10 토르 미만의 진공하에서 50rpm의 회전속도로 1m 직경의 다이스를 통해 수지를 압출하고, 압출되는 수지를 공기가 공급되는 블로운 부분을 통과시켜 튜브 형태의 원통형으로 압출성형 하였다. 상기 압출 성형된 것을 실온으로 냉각하고, 닙롤에 의해 포개져 권취하여 원단을 회수하였다. 상기 권취된 원단을 리와인딩 시키면서 일정 간격으로 융착하여 융착선을 형성함과 동시에 상기 융착선과 인접하여 필름을 절단하여 일측이 개방된 사각의 비닐봉투를 얻고, 상기 비닐봉투를 양날손잡이, 링고리 등 일반 규격에 맞도록 재단하여 절취 및 펀칭하는 가공단계를 통해 두께 20㎛의 생분해성 비닐봉투로 제조하였다. After mixing 1 g of the green seaweed, seaweed, seaweed, kelp and cassava extracts and 100 g of biodegradable polymer polyvinyl alcohol using a super mixer for 10 minutes, it was supplied to a dryer and dried at 100°C. Then, the dried mixture is supplied through a hopper, passed through a cylinder at a temperature of 180° C., and melted in a gel-like liquid form, and then rotated at 50 rpm under a vacuum of less than 10 Torr using a twin-screw extruder having a screw. The resin was extruded through a 1 m diameter die at a speed, and the extruded resin was passed through a blown part to which air was supplied, and extruded into a tube-shaped cylinder. The extrusion-molded thing was cooled to room temperature, and the fabric was recovered by being rolled over by a nip roll. While rewinding the wound fabric, it is fused at regular intervals to form a fusion line, and at the same time cut the film adjacent to the fusion line to obtain a square plastic bag with one side open, and attach the plastic bag to a double-edged handle, a ring ring, etc. It was cut to meet general specifications and manufactured into a 20㎛-thick biodegradable plastic bag through the processing steps of cutting and punching.
수득되는 비닐봉투를 만능시험기를 이용하여 인장강도, 인열강도, 신장률의 기계적 물성을 확인하였으며, 표 1에 그 결과를 나타내었다.The obtained plastic bag was checked for mechanical properties of tensile strength, tear strength, and elongation using a universal testing machine, and the results are shown in Table 1.
<비교예 1><Comparative Example 1>
상기 실시예 1에서 파래, 김, 톳, 다시마 및 카사바 추출물을 혼합하지 않고, 상용성 비닐봉투 조성물인 폴리에틸렌(PE)으로 일반 비닐봉투를 제조하였다. 수득되는 비닐봉투를 만능시험기를 이용하여 인장강도, 인열강도, 신장률의 기계적 물성을 확인하였으며, 표 1에 그 결과를 나타내었다.In Example 1, a general plastic bag was prepared using polyethylene (PE), which is a compatible plastic bag composition, without mixing green seaweed, seaweed, seaweed, kelp and cassava extracts. The obtained plastic bag was checked for mechanical properties of tensile strength, tear strength, and elongation using a universal testing machine, and the results are shown in Table 1.
<실험예 1><Experimental Example 1>
상기 실시예에서 인장강도는 KS M 3509의 시험방법으로, 인열강도는 KS M 3509의 시험방법으로 만능재료시험기를 이용하여 온도 23℃, 상대습도 50％인 상태에서 인장속도 500mm/분의 속도로 측정하였으며, 신장률은 KS M ISO1798의 방법으로 측정하였다.In the above embodiment, the tensile strength is the test method of KS M 3509, and the tear strength is the test method of KS M 3509, using a universal material testing machine at a temperature of 23° C. and a relative humidity of 50%. At a rate of 500 mm/min. was measured, and the elongation was measured by the method of KS M ISO1798.
하기 표 1에서 볼 수 있듯이, 해조류(파래, 김, 톳, 다시마) 및 카사바 추출물을 첨가하여 제조된 생분해성 비닐봉투(실시예 1)는 친환경원료를 100% 이용한 것으로, 해조류(파래, 김, 톳, 다시마) 및 카사바 추출물을 첨가하지 않고, PE만을 이용하여 제조된 일반 비닐봉투(비교예 1) 보다 기계적 물성(인장강도, 인열강도, 신장률)은 다소 낮으나, 비닐봉투로서 이용되기에 일정한 기계적 강도를 나타내었다.As can be seen in Table 1 below, the biodegradable plastic bag (Example 1) prepared by adding seaweed (green seaweed, laver, seaweed, kelp) and cassava extract uses 100% eco-friendly raw materials, and seaweed (green seaweed, laver, seaweed, The mechanical properties (tensile strength, tear strength, elongation rate) are somewhat lower than that of a general plastic bag (Comparative Example 1) prepared using only PE without adding shiitake, kelp) and cassava extract, but it is constant because it is used as a plastic bag. Mechanical strength was shown.
(N/cm2)Tensile strength - transverse
(N/cm 2 )
(N/cm2)Tensile Strength - Longitudinal
(N/cm 2 )
(N/cm2)Tear strength - transverse
(N/cm 2 )
(N/cm2)Tear strength - length
(N/cm 2 )
(%)elongation - transverse
(%)
(%)elongation - length
(%)
<실험예 2><Experimental Example 2>
실시예 1과 비교예 1에서 제조된 시료의 생분해성을 검사하기 위해, 20㎛의 비닐봉투를 1개월간 토양매립을 통한 시료의 무게감소법으로 시험하였다. 매립 후 정해진 기간을 기준으로 시료를 채취, 물과 알코올로 시료의 이물질을 제거한 후, 매립 후 무게를 매립 전 무게로 나누어 생분해율을 측정하였다. 이때, 매립은 인근 야산에 호기성 미생물과 혐기성 미생물이 공존할 수 있는 30cm 깊이로 수행하였다. In order to examine the biodegradability of the samples prepared in Example 1 and Comparative Example 1, a 20㎛ plastic bag was tested by a method of reducing the weight of the sample through landfilling for one month. After burial, samples were collected based on a set period of time, and foreign substances were removed from the samples with water and alcohol, and the biodegradation rate was measured by dividing the weight after burial by the weight before burial. At this time, the landfill was carried out to a depth of 30 cm where aerobic and anaerobic microorganisms can coexist in the nearby hills.
상기 표 2를 통해 알 수 있듯이, 해조류(파래, 김, 톳, 다시마) 및 카사바 추출물을 함유한 생분해성 비닐봉투의 경우 1개월 후 비교예 1의 일반 비닐봉투와 비교하여 비닐봉투가 완전 분해되는 것으로 나타났다.As can be seen from Table 2, in the case of a biodegradable plastic bag containing seaweed (green seaweed, seaweed, seaweed, kelp) and cassava extract, the plastic bag is completely decomposed compared to the general plastic bag of Comparative Example 1 after 1 month. appeared to be
Claims (7)
상기 해조류 및 카사바의 에탄올 추출물과 상기 고분자 수지를 1:100의 중량비로 혼합하여 혼합물 형성하는 혼합단계(b);
상기 혼합물을 건조기에 공급하여 100℃의 온도로 건조하는 혼합물 수분제거단계(c);
상기 건조된 혼합물을 180℃의 온도, 50 rpm으로 다이스를 통해 압출하고, 블로운 부분을 통과시켜 원통형으로 성형되는 압출성형단계(d);
상기 압출성형 된 것을 냉각하고 닙롤에 의해 포개져 권취하는 원단회수단계(e); 및
상기 권취된 원단을 리와인딩 시키면서 융착하고, 일반 규격에 맞게 절취 및 펀칭하는 가공단계(f); 를 포함하는 것을 특징으로 하는, 해조류와 식물성 원료를 이용한 비닐봉투 제조방법.Preparing an ethanol extract of polyvinyl alcohol, which is a biodegradable polymer resin, and seaweeds, seaweed, seaweed, seaweed, seaweed, kelp and cassava (a);
a mixing step (b) of mixing the ethanol extract of seaweed and cassava with the polymer resin in a weight ratio of 1:100 to form a mixture;
a water removal step (c) of supplying the mixture to a dryer and drying the mixture at a temperature of 100°C;
Extrusion molding step (d) of extruding the dried mixture through a die at a temperature of 180° C. and 50 rpm, and passing through a blown part to form a cylindrical shape;
a fabric recovery step (e) of cooling the extruded thing and wrapping it up by a nip roll; and
A processing step (f) of fusion while rewinding the wound fabric, cutting and punching according to general specifications; A method for manufacturing a plastic bag using seaweed and vegetable raw materials, characterized in that it comprises a.
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| KR1020190148970A KR102321938B1 (en) | 2019-11-19 | 2019-11-19 | Manufacturing method of eco-friendly plastic bags using seaweeds and vegetable raw materials |
| PCT/KR2020/014603 WO2021101094A1 (en) | 2019-11-19 | 2020-10-23 | Eco-friendly plastic bag using seaweed and vegetable raw material and manufacturing method therefor |
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| JPH0714615B2 (en) * | 1988-11-11 | 1995-02-22 | 富士写真フイルム株式会社 | Laminated film and manufacturing method thereof |
| CN101263171B (en) * | 2005-09-14 | 2015-07-08 | 旭化成化学株式会社 | Block copolymer and process for production of thermally shrinkable film |
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| JP2009506199A (en) * | 2005-08-31 | 2009-02-12 | ガラ・インダストリーズ・インコーポレイテッド | Method and apparatus for granulating biomaterial composites |
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| JP2014125611A (en) | 2012-12-27 | 2014-07-07 | Takamatsuya:Kk | Biodegradable plastic composition comprising starch derived from cassava |
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