Biodegradable plastic bag and manufacturing method thereof

The present invention relates to a biodegradable plastic bag and a manufacturing method thereof, and more specifically, to a biodegradable plastic bag manufactured by manufacturing a biodegradable film by using a biodegradable resin composition manufactured by mixing a biodegradable resin with miner...

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Bibliographische Detailangaben
1. Verfasser:	CHOI SANG HWAN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to a biodegradable plastic bag and a manufacturing method thereof, and more specifically, to a biodegradable plastic bag manufactured by manufacturing a biodegradable film by using a biodegradable resin composition manufactured by mixing a biodegradable resin with minerals and a manufacturing method thereof. According to the biodegradable plastic bag manufactured by using the biodegradable resin, provided are: the manufacturing method of the biodegradable plastic bag which comprises: a biodegradable resin mixing step in which the biodegradable resin including polybutylene adipate terephthalate (PBAT), poly lactic acid (PLA), and polybutylene succinate (PBS) are added to a mixing machine and mixed; an inorganic material addition step of adding inorganic materials containing at least one of calcium carbonate and titanium dioxide to the biodegradable resin added to the mixing machine; an additive addition step of adding an additive to the biodegradable resin composition mixed with the inorganic materials; a pellet manufacturing step of manufacturing the biodegradable resin composition mixed with the additives into pellets through an extruder; a biodegradable resin film manufacturing step of introducing the pellets into a film molding machine to produce a biodegradable resin film; and a biodegradable plastic bag manufacturing step of manufacturing the biodegradable resin film into the biodegradable plastic bag; and the biodegradable plastic bag manufactured by the above-described manufacturing method. In addition, the biodegradable plastic bag with excellent printability and opacity and high marketability can be obtained by mixing the inorganic materials with the biodegradable resin. 본 발명은 생분해성 봉투 및 그 제조방법에 관한 것으로서, 더욱 상세하게는 생분해성 수지에 무기질을 혼합하여 제조되어진 생분해성 수지 조성물로 생분해가 가능한 필름을 제조하여 봉투를 제작하는 생분해성 봉투 및 그 제조방법에 관한 것이다. 생분해성 수지를 이용하여 제조된 생분해성 봉투에 있어서, 폴리부틸렌 아디페이트 페레프탈레이트(PBAT, Polybutylene adipate terephthalate), 폴리락트산(PLA, Poly lactic acid) 및 폴리부틸렌 숙시네이트(PBS, Polybutylene succinate)를 포함하는 생분해성 수지를 혼합기에 투입하여 혼합하는 생분해성 수지 혼합단계; 상기 혼합기에 투입되어진 상기 생분해성 수지에 탄산칼슘과 이산화티타늄 중 어느 하나 이상을 포함하는 무기물을 첨가하는 무기물 첨가단계; 상기 무기물이 혼합되어진 생분해성 수지 조성물에 첨가제를 첨가하는 첨가제 첨가단계; 상기 첨가제가 혼합되어진 상기 생분해성 수지 조성물을 압출기를 통해 펠렛으로 제조하는 펠렛 제조단계; 상기 펠렛을 필름 성형기에 투입하여 생분해성 수지 필름으로 제조하는 생분해성 수지 필름 제조단계; 및 상기 생분해성 수지 필름을 생분해성 봉투로 제조하는 생분해성 봉투 제조단계;를 포함하는 생분해성 봉투 제조방법을 제공할 수 있으며, 상술한 제조방법에 의해 제조된 생분해성 봉투를 제공할 수 있다.