KR102305248B1 - 가스 배리어 알루미늄 증착필름 및 그의 제조방법 - Google Patents
가스 배리어 알루미늄 증착필름 및 그의 제조방법 Download PDFInfo
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- KR102305248B1 KR102305248B1 KR1020200016713A KR20200016713A KR102305248B1 KR 102305248 B1 KR102305248 B1 KR 102305248B1 KR 1020200016713 A KR1020200016713 A KR 1020200016713A KR 20200016713 A KR20200016713 A KR 20200016713A KR 102305248 B1 KR102305248 B1 KR 102305248B1
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Abstract
Description
도 2는 본 발명의 다른 양상에 따른 가스 배리어 알루미늄 증착필름의 제조방법을 나타내는 흐름도이다.
플라스틱 기재필름 | 시드 코팅층 | ||||||
소재 | 두께 (㎛) |
결정화도 (%) |
면배향도 | 코팅 조성물 |
관능기 종류 |
관능기수 | |
실시예1 | PET | 12 | 51 | 0.165 | Co-polyester | 카르복실산기 | 3.7e+8 |
실시예2 | PET | 12 | 51 | 0.164 | Co-polyester | 하이드록시기 | 5.7e+7 |
실시예3 | PET | 12 | 51 | 0.164 | Urethane | 아민기 | 2.9e+8 |
실시예4 | PET | 12 | 51 | 0.165 | Co-polyester | 카르복실산기 | 1.0e+5 |
실시예5 | PET | 12 | 51 | 0.165 | Co-polyester | 카르복실산기 | 1.0e+10 |
실시예6 | PET | 12 | 51 | 0.165 | Co-polyester | 카르복실산기 | 3.7e+8 |
실시예7 | PET | 12 | 51 | 0.165 | Co-polyester | 카르복실산기 | 3.7e+8 |
비교예1 | PET | 12 | 51 | 0.165 | 무처리 | ||
비교예2 | PET | 12 | 51 | 0.165 | 코로나 처리 | ||
비교예3 | PET | 12 | 51 | 0.165 | Co-polyester | 카르복실산기 | 2.4e+4 |
비교예4 | PET | 12 | 51 | 0.165 | Co-polyester | 카르복실산기 | 7.1e+11 |
비교예5 | PET | 12 | 51 | 0.165 | Co-polyester | 카르복실산기 | 3.7e+8 |
비교예6 | PET | 12 | 51 | 0.165 | Co-polyester | 카르복실산기 | 3.7e+8 |
비교예7 | PET | 12 | 35 | 0.165 | Co-polyester | 카르복실산기 | 3.1e+8 |
비교예8 | PET | 12 | 42 | 0.135 | Co-polyester | 카르복실산기 | 4.1e+8 |
알루미늄 증착층 | 배리어 특성 | 기타 | ||
광학밀도 | 수증기 투과율 (g/㎡·24hr) |
산소 투과율 (cc/㎡·24hr·atm) |
||
실시예1 | 3.0 | 0.12 | 0.16 | |
실시예2 | 3.0 | 0.2 | 0.27 | |
실시예3 | 3.0 | 0.08 | 0.11 | |
실시예4 | 3.0 | 0.49 | 0.95 | |
실시예5 | 3.0 | 0.09 | 0.18 | |
실시예6 | 1.5 | 0.48 | 0.97 | |
실시예7 | 4.5 | 0.47 | 0.96 | |
비교예1 | 3.0 | 1.5 | 2.42 | |
비교예2 | 3.0 | 1.37 | 1.98 | |
비교예3 | 3.0 | 0.67 | 1.36 | |
비교예4 | 3.0 | 0.37 | 0.89 | 증착층 외관 불량,권취 블로킹 발생 |
비교예5 | 1.3 | 2.75 | 3.94 | |
비교예6 | 5.0 | 1.19 | 1.58 | Al층 크랙 발생 |
비교예7 | 3.0 | 0.92 | 1.34 | 권취 불량 |
비교예8 | 3.0 | 1.24 | 1.69 | 두께 균일도 불량 |
11: 시드 코팅층
12: 알루미늄 증착층
Claims (14)
- 연신 후 열처리된 열가소성 플라스틱 기재필름;
상기 열가소성 플라스틱 기재필름의 일면에 적층되며, 하이드록시기(-OH), 아민기(-NH) 및 카르복실산기(-COOH) 중에서 선택된 적어도 하나 이상의 관능기를 가지는 시드 코팅층; 및
상기 시드 코팅층 상에 증착된 알루미늄 증착층;
을 포함하며,
상기 시드 코팅층은 300㎛ x 300㎛ 면적내에 하이드록시기(-OH), 아민기(-NH) 및 카르복실산기(-COOH) 중에서 선택된 적어도 하나 이상의 관능기를 1.0e+5 내지 1.0e+10개 포함하며,
상기 알루미늄 증착층의 광학밀도(Optical density, O.D)는 1.5 내지 4.5이고,
상기 열가소성 플라스틱 기재필름은 면배향도가 0.150 내지 0.200인, 가스 배리어 알루미늄 증착필름. - 삭제
- 제1항에 있어서,
상기 열가소성 플라스틱 기재필름은 폴리에틸렌테레프탈레이트(PET)인, 가스 배리어 알루미늄 증착필름. - 제1항에 있어서,
상기 열가소성 플라스틱 기재필름은 결정화도가 40% 내지 60%인, 가스 배리어 알루미늄 증착필름. - 삭제
- 제1항에 있어서,
상기 열가소성 플라스틱 기재필름은 두께가 5 내지 100㎛인, 가스 배리어 알루미늄 증착필름. - 제1항에 있어서,
상기 시드 코팅층은 공중합 폴리에스테르계 코팅조성물로 코팅된, 가스 배리어 알루미늄 증착필름. - 삭제
- 제1항에 있어서,
상기 가스 배리어 알루미늄 증착필름의 수증기 투과율(Water Vapor Transmission Rate, WVTR)은 0.01 내지 0.5 g/㎡·24hr 인, 가스 배리어 알루미늄 증착필름. - 제1항에 있어서,
상기 가스 배리어 알루미늄 증착필름의 산소 투과율(Oxygen Transmission Rate, OTR)은 0.1 내지 1.0 cc/㎡·24hr·atm 인, 가스 배리어 알루미늄 증착필름. - 제1항에 있어서,
상기 시드 코팅층의 두께는 10㎚ 내지 100㎚인, 가스 배리어 알루미늄 증착필름. - 연신 후 열처리된 열가소성 플라스틱 기재필름의 일면에 시드 코팅층을 코팅하는 단계; 및
상기 시드 코팅층 상에 알루미늄을 증착하여 알루미늄 증착층을 형성하는 단계;
를 포함하며,
상기 시드 코팅층을 코팅하는 단계는 300㎛ x 300㎛ 면적내에 하이드록시기(-OH), 아민기(-NH) 및 카르복실산기(-COOH) 중에서 선택된 적어도 하나 이상의 관능기를 1.0e+5 내지 1.0e+10개 포함하는 시드 코팅층을 코팅하는 단계이고,
상기 알루미늄 증착층의 광학밀도(Optical density, O.D)는 1.5 내지 4.5이고,
상기 열가소성 플라스틱 기재필름은 면배향도가 0.150 내지 0.200인, 가스 배리어 알루미늄 증착필름의 제조방법. - 삭제
- 제12항에 있어서,
상기 시드 코팅층을 코팅하는 단계는,
열가소성 플라스틱 칩을 용융압출한 후 냉각, 고화시켜 무연신 시트를 제조하는 단계와,
상기 무연신 시트를 종방향으로 연신하여 1축 연신된 기재필름을 제조하는 단계와,
상기 1축 연신된 기재필름 상에 하이드록시기(-OH), 아민기(-NH) 및 카르복실산기(-COOH) 중에서 선택된 적어도 하나 이상의 관능기를 갖는 공중합폴리에스테르계 코팅 조성물을 코팅하여 시드 코팅층이 코팅된 기재필름을 제조하는 단계와,
상기 시드 코팅층이 코팅된 기재필름을 횡방향으로 2축 연신한 후 열처리하여 시드 코팅층이 코팅된 2축 연신된 열가소성 플라스틱 기재필름을 제조하는 단계를 포함하는, 가스 배리어 알루미늄 증착필름의 제조방법.
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US17/798,492 US12291774B2 (en) | 2020-02-12 | 2020-11-05 | Gas barrier aluminum deposition film and preparation method thereof |
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