CN111055560A - 一种干粉吸入剂包装膜 - Google Patents

一种干粉吸入剂包装膜 Download PDF

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CN111055560A
CN111055560A CN201911225677.4A CN201911225677A CN111055560A CN 111055560 A CN111055560 A CN 111055560A CN 201911225677 A CN201911225677 A CN 201911225677A CN 111055560 A CN111055560 A CN 111055560A
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film
layer
dry powder
aluminum foil
sealing
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李全布
黄湘晖
黄文娟
张荣成
胡娜
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Jiangyin Baobo Packing Co ltd
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Abstract

本发明公开了一种干粉吸入剂包装膜，包括盖膜和底膜，所述盖膜包括由外至内依次胶粘复合而成的纸质印刷层、PET层、盖膜铝箔阻隔层、热封胶层；所述底膜包括由外至内依次胶粘复合而成的尼龙支撑层、底膜铝箔阻隔层、吸湿封合层；所述吸湿封合层为PP膜或PE膜中，其中PP膜或PE膜中含有干燥剂。本发明提供一种安全高效，有效吸收药剂中水分、盖膜与底膜易于分离的干粉吸入剂包装膜。

Description

一种干粉吸入剂包装膜
技术领域
本发明涉及包装膜技术领域，具体涉及一种干粉吸入剂包装膜。
背景技术
从上世纪50年代中期，Charles Thiel发明的吸入器开始，人们就开始在哮喘以及慢性阻塞性肺部疾病的治疗中，使用将吸入式药物气雾输送给患者的医疗装置。相对于口服和皮下注射等给药方式，吸入式给药具有很明显的优势。由于人体鼻腔、支气管和肺部的粘膜表面积很大，人体的呼吸道总共有23次分叉，成人肺泡表面积可高达140平方米，肺泡壁很薄，周围密布大量毛细血管。药物颗粒在其中可以快速透过肺泡粘膜组织直接进入血液循环。具有无肠胃道降解作用、无肝脏的首过效应、剂量小起效快、毒副作用低、且适用于生物大分子递送等优势。肺吸入药物是治疗哮喘、慢性阻塞性肺炎等肺部疾病的最佳治疗方式，近些年也进一步扩展到了治疗周身性疾病,如糖尿病等，其市场巨大。
用于吸入的一剂药物数量一般少于50微克，通常为25-50微克。人们希望从吸入器吸出的剂量具有较高的一致性，对于预定剂量的药物，各剂量之间的相对标准偏差(RSD)不应超过5％。故此现有的做法一般将需要吸入的药物做成胶囊。
干粉吸入剂采用盖膜和底膜的包装形式，药剂以干粉形式存在，要求包装膜具有良好的阻隔性能，需要保证药剂的干燥，并且底膜与盖膜应该具有易于分离的特点。
常规干粉吸入剂包装膜的封合层采用(聚氯乙烯)PVC膜，PVC在生产、回收和在焚烧炉中毁弃时，或者PVC的产品在意外燃烧时都会产生对环境有污染的二噁英等污染物。为了提高包装膜的回收性和环保性将难以回收利用的PVC用环境友好型的PP树脂或PE树脂替代。
发明内容
本发明的目的在于，克服现有技术中存在的缺陷，提供一种安全高效，有效吸收药剂中水分、盖膜与底膜易于分离的干粉吸入剂包装膜。
为实现上述目的，本发明的技术方案是设计一种干粉吸入剂包装膜，包括盖膜和底膜，所述盖膜包括由外至内依次胶粘复合而成的纸质印刷层、PET层、盖膜铝箔阻隔层、热封胶层；所述底膜包括由外至内依次胶粘复合而成的尼龙支撑层、底膜铝箔阻隔层、吸湿封合层；所述吸湿封合层为PP膜或PE膜，其中PP膜或PE膜中均含有干燥剂。将粉剂药物放置在盖膜和底膜之间，采用热封胶封口，保证盖膜与底膜形成的包装膜具有良好的密封性能，与吸入器配合使用，包装膜也具有良好的拉伸性能。
作为优选的技术方案，所述干燥剂为氧化钙，将氧化钙粉末与PP粒子或PE粒子均匀混合，造粒后挤出成膜，所述氧化钙的添加量为PP膜或PE膜总质量的2～5％，所述吸湿封合层的厚度为15～100μm，封合层为PP膜或PE膜。相比于传统方法在制备膜的过程中将氧化钙作为添加剂放入熔融的PP或PE中，本发明先将氧化钙与PP或PE造粒，然后在挤出成膜，相比于现有技术氧化钙的分散性更好，氧化钙与PP或PE的融合性更好，挤出膜具有更好的外观性能和吸湿性能。
作为优选的技术方案，所述热封胶的组成质量百分比为：60～75％丙烯酸树脂、10～18％醋酸乙酯、10～15％氯醋、3～5％有机硅改性聚氨酯树脂、1～3％羟基硅酸镁和0.1～0.5％蜡。HSL胶不含甲苯等溶剂，可以用于包装盒的粘结。
作为优选的技术方案，所述吸湿封合层包括由内至外依次设置的第一LDPE层、第二HDPE层和第二HDPE层，所述LDPE中含有干燥剂，干燥剂的添加量为第一LDPE层质量的1～3％。所述LDPE具有良好的热封效果，为了改善包装膜的回收性能，提高HDPE的添加量，其中吸湿封合层中HDPE的添加量大于60％。
作为优选的技术方案，所述吸湿封合层采用干式复合法。
作为优选的技术方案，所述盖膜铝箔阻隔层厚度为7～40μm，底膜铝箔阻隔层的厚度为40～75μm。铝箔与吸湿封合层之间通过粘接剂连接，所述粘接剂为常规的马来酸酐接枝树脂，由于铝箔表面有一定的细毛孔，低密度聚乙烯复合在铝箔表面，粘结剂填充在铝箔的毛细空中，不仅提高了铝箔的强度也提高了铝箔的阻隔性能。
作为优选的技术方案，所述热封胶的使用量为4～7g/m2。
本发明的优点和有益效果在于：本发明通过将纸、铝箔和改性聚乙烯醇复合形成盖膜和底膜，盖膜和底膜通过胶粘连接与吸入器配合使用，具有良好的阻隔性能、密封性能、安全无毒。
附图说明
图1是本发明的结构示意图；
图中：1、纸质印刷层；2、PET层；3、盖膜铝箔阻隔层；4、热封胶；5、尼龙支撑层；6、底膜铝箔阻隔层；7、吸湿封合层；8、盖膜；9、底膜；10、第一LDPE层；11、第二HDPE层。
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
实施例1
一种干粉吸入剂包装膜，包括盖膜8和底膜9，所述盖膜包括由外至内依次胶粘复合而成的纸质印刷层1、PET层2、盖膜铝箔阻隔层3、热封胶层4；所述纸质印刷层的厚度为45μm，PET层的厚度为30μm，盖膜铝箔阻隔层的厚度为20μm；热封胶的使用量5g/m2；
所述底膜包括由外至内依次胶粘复合而成的尼龙支撑层、底膜铝箔阻隔层、吸湿封合层；所述尼龙支撑层中为厚度是25μm的OPA膜，底膜铝箔阻隔层为厚度是45μm的铝箔；吸湿封合层为厚度是60μm的PVC。
热封胶的组成质量百分比为：75％丙烯酸树脂、10％醋酸乙酯、10％氯醋、3％有机硅改性聚氨酯树脂、1.9％羟基硅酸镁和0.1％蜡。
实施例2
一种干粉吸入剂包装膜，包括盖膜和底膜，所述盖膜包括由外至内依次胶粘复合而成的纸质印刷层、PET层、盖膜铝箔阻隔层、热封胶层；所述纸质印刷层的厚度为45μm，PET层的厚度为25μm，盖膜铝箔阻隔层的厚度为30μm，热封胶的使用量6g/m2；
所述底膜包括由外至内依次胶粘复合而成的尼龙支撑层、底膜铝箔阻隔层、吸湿封合层；所述尼龙支撑层中为厚度是25μm的OPA膜，底膜铝箔阻隔层为厚度是45μm的铝箔；吸湿封合层为厚度是60μm的PP，吸湿封合层中干燥剂氧化钙的添加量为PP膜质量的2％。
热封胶的组成质量百分比为：75％丙烯酸树脂、11％醋酸乙酯、8％氯醋、3.5％有机硅改性聚氨酯树脂、2.4％羟基硅酸镁和0.1％蜡。
实施例3
一种干粉吸入剂包装膜，包括盖膜和底膜，所述盖膜包括由外至内依次胶粘复合而成的纸质印刷层、PET层、盖膜铝箔阻隔层、热封胶层；所述纸质印刷层的厚度为45μm，PET层的厚度为25μm，盖膜铝箔阻隔层的厚度为40μm，热封胶的使用量7g/m2；
所述底膜包括由外至内依次胶粘复合而成的50μmPP加强层，25μm的OPA支撑层、50μm的底膜铝箔阻隔层、60μmPP吸湿封合层；所述60μmPP吸湿封合层不含干燥剂。
热封胶的组成质量百分比为：70％丙烯酸树脂、12％醋酸乙酯、12％氯醋、4％有机硅改性聚氨酯树脂、1.5％羟基硅酸镁和0.5％蜡。
实施例4
一种干粉吸入剂包装膜，包括盖膜和底膜，所述盖膜包括由外至内依次胶粘复合而成的纸质印刷层、PET层、盖膜铝箔阻隔层、热封胶层；所述纸质印刷层的厚度为45μm，PET层的厚度为25μm，盖膜铝箔阻隔层的厚度为40μm，热封胶的使用量7g/m2；
所述底膜包括由外至内依次胶粘复合而成的25μm的OPA支撑层、45μm的底膜铝箔阻隔层、60μmPE吸湿封合层；所述PE吸湿封合层包括由内至外依次挤出复合而成的第一LDPE层和第二HDPE层，所述第一LDPE层的厚度为15μm，第一LDPE层中氧化钙的含量为LDPE质量的3％，第二HDPE层的厚度为45μm。
热封胶的组成质量百分比为：70％丙烯酸树脂、12％醋酸乙酯、12％氯醋、4％有机硅改性聚氨酯树脂、1.5％羟基硅酸镁和0.5％蜡。
本发明实施例1～4的技术指标如下：
Figure BDA0002302140310000051
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (7)

1.一种干粉吸入剂包装膜，包括盖膜和底膜，其特征在于，所述盖膜包括由外至内依次胶粘复合而成的纸质印刷层、PET层、盖膜铝箔阻隔层、热封胶层；所述底膜包括由外至内依次胶粘复合而成的尼龙支撑层、底膜铝箔阻隔层、吸湿封合层；所述吸湿封合层为PP膜或PE膜，PP膜或PE膜的厚度为15～100μm，其中PP膜或PE膜中均含有干燥剂。
2.根据权利要求1所述的一种干粉吸入剂包装膜，其特征在于，所述干燥剂为氧化钙，将氧化钙粉末与PP粒子或PE粒子均匀混合，造粒后挤出成膜，所述氧化钙的添加量为PP膜或PE膜总质量的2～5％。
3.根据权利要求2所述的一种干粉吸入剂包装膜，其特征在于，所述热封胶的组成质量百分比为：60～75％丙烯酸树脂、10～18％醋酸乙酯、10～15％氯醋、3～5％有机硅改性聚氨酯树脂、1～3％羟基硅酸镁和0.1～0.5％蜡。
4.根据权利要求3所述的一种干粉吸入剂包装膜，其特征在于，所述吸湿封合层包括由内至外依次设置的第一LDPE层、第二HDPE层和第二HDPE层，所述LDPE中含有干燥剂，干燥剂的添加量为第一LDPE层质量的1～3％。
5.根据权利要求4所述的一种干粉吸入剂包装膜，其特征在于，所述吸湿封合层采用干式复合法。
6.根据权利要求5所述的一种干粉吸入剂包装膜，其特征在于，所述盖膜铝箔阻隔层厚度是7～40μm，底膜铝箔阻隔层的厚度为40～75μm。
7.根据权利要求5所述的一种干粉吸入剂包装膜，其特征在于，所述热封胶的使用量为4～7g/m2。
CN201911225677.4A 2019-12-04 2019-12-04 一种干粉吸入剂包装膜 Pending CN111055560A (zh)

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