CN114702768B - 一种药品包装用防反光pvc复合膜及其制备方法 - Google Patents
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Abstract
本发明公开了一种药品包装用防反光PVC复合膜,由以下重量份数组分组成:PVC树脂粉100份,MBS树脂15‑25份,甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物2‑5份,硫醇辛基锡3.5‑5.5份,滑剂0.3‑0.5份。本发明药品包装用防反光PVC复合膜为透明膜,在受到冲压后,透明膜发生变色,透明变为白色,因此在药品包装检测时,不反光,从而有效解决反光问题,使得摄像检测自动剔除***工作准确度更高。
Description
技术领域
本发明属于复合膜生产技术领域,具体涉及一种药品包装用防反光PVC复合膜及其制备方法。
背景技术
药品包装用复合膜是一种最常用的复合卷膜,以聚氯乙烯(PVC)树脂为主要原料制成的薄膜,与铝箔复合后用于固体药品(片剂、胶囊剂等)泡罩包装。作为医药包装材料,其生产工艺和性能均具有严格的要求。药品是种特殊商品,药品包装同其他商品包装一样,其质量好坏可直接影响到药品的销售。
现有医药企业,在药品包装工艺中会采用摄像检测自动剔除***来检测包装板面上的孔洞内是否全部装填上药品,由于现有的药品包装用复合膜为透明质地,当摄像检测自动剔除***的红外设备进行药品是否漏填充检测时,容易出现反光现象,无法有效确定是否有药品压入,容易出现误检和漏检等现象,还需要增加人工复检流程,造成劳力成本高、检测效率低的问题,无法满足现代企业对药品质量的要求。因此,为了提高药品漏填充检出效率,有必要研发出具有防反光性能的药品包装用复合膜。
发明内容
针对现有技术中存在的问题,本发明要解决的一个技术问题在于提供一种药品包装用防反光PVC复合膜,在受到冲压后,复合膜变色,具有防反光性能。本发明要解决的另一个技术问题在于提供一种药品包装用防反光PVC复合膜的制备方法。
为了解决上述问题,本发明所采用的技术方案如下:
一种药品包装用防反光PVC复合膜,由以下重量份数组分组成:PVC树脂粉100份,MBS树脂15-25份,甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物2-5份,硫醇辛基锡3.5-5.5份,滑剂0.3-0.5份。
所述药品包装用防反光PVC复合膜,由以下重量份数组分组成:PVC树脂粉100份,MBS树脂20份,甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物5份,硫醇辛基锡5份,滑剂0.4份。
所述药品包装用防反光PVC复合膜,由以下重量份数组分组成:PVC树脂粉100份,MBS树脂25份,甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物4份,硫醇辛基锡4份,滑剂0.5份。
所述药品包装用防反光PVC复合膜的制备方法,包括以下步骤:
1)将各组分加热溶解得到混合物料;
2)将混合物料放入冷锅急冷;过滤筛分,挤出,开炼,塑化脱除内部气泡;
3)将混合物料导入压延机,对物料压延处理挤出;
4)利用收卷机对复合膜进行收卷,利用分切机对复合膜进行分切,检验后包装入库。
步骤1)中,将PVC树脂粉和MBS树脂,搅拌加热到70℃,然后加入甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物,搅拌加热到85℃,加入硫醇辛基锡,滑剂,加热到100℃溶解。
步骤2)中,放入冷锅,30-40℃急冷,过筛,挤出,开炼机挤出气泡;
步骤3)中,采用压延机对物料依次进行处理,采用五辊压延,各压延辊的温度分别为200℃、210℃、215℃、210℃及200℃;剥离辊共有2组,温度分别为100℃和90℃;缓冷辊为10组,各辊温度依次由35℃升到55℃;冷却辊为20组,冷却温度为40-45℃。
有益效果:与现有的技术相比,本发明的优点包括:
1)本发明药品包装用防反光PVC复合膜,外观色泽均匀,表面没有凹凸发皱、油污、异物、穿孔、杂质等瑕疵;经红外光谱测定,其谱图与对照图谱基本一致。
2)本发明药品包装用防反光PVC复合膜,本身为透明膜,在受到冲压后,透明膜发生变色,透明变为白色,因此在药品包装检测时,不反光,从而有效解决反光问题,使得摄像检测自动剔除***工作准确度更高。
3)本发明复合膜具有优异的性能参数,纵向拉伸强度达到60Mpa,横向拉伸强度达到55MPa,延伸率达到40%,热合强度为15-18N·15mm-1。
具体实施方式
下面结合具体实施例对本发明的具体实施方式做详细的说明。以下实施例中所使用的组分除特殊说明外,均为市售途径购买获得。
纵向、横向拉伸强度、延伸率照拉伸性能测定法(YBB60322012)测定,试验速度(空载)100mm/min±10mm/min,试样为Ⅰ型。
热合强度的测定方法:取100mm×100mm的本品2片,另取100mm×l00mm的聚氯乙烯固体药用硬片(符合YBB20222012)或聚氯乙烯/聚偏二氯乙烯固体药用复合硬片(符合YBB20242012)2片。将试样的粘合层面向PVC面(或PVC/PVDC复合硬片的PVDC面)进行叠合,置于热封仪进行热合,热合条件为:温度190℃±5℃,压力0.2MPa,时间1秒,热合后取出放冷,裁取成15mm宽的试样,取中间三条试样试验。照热合强度测定法(YBB60332012)测定,试验速度为300mm/min±20mm/min,PVC(或PVDC)片夹在试验机的上夹,铝箔夹在试验机的下夹,得到热合强度平均值。
实施例1
一种药品包装用防反光PVC复合膜,由以下重量份数组分组成:PVC树脂粉100份,MBS树脂20份(型号BTA730),甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物5份(型号P-551J),硫醇辛基锡5份,滑剂0.4份。
上述药品包装用防反光PVC复合膜的制备方法,包括以下步骤:
1)将PVC树脂粉和MBS树脂,搅拌加热到70℃,然后加入甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物,搅拌加热到85℃,加入硫醇辛基锡,聚乙烯蜡,加热到100℃溶解;
2)出锅,放入冷锅,30-40℃急冷,过筛,开炼机挤出气泡;
3)采用压延机对物料依次进行处理,采用五辊压延,各压延辊的温度分别为200℃、210℃、215℃、210℃及200℃;剥离辊共有2组,温度分别为100℃和90℃;缓冷辊为10组,各辊温度依次由35℃升到60℃;冷却辊为20组,冷却温度为40-45℃。
4)利用收卷机对复合膜进行收卷,利用分切机对复合膜进行分切,检验后包装入库。
对上述制备的药品包装用防反光PVC复合膜的性能进行检测,纵向拉伸强度达到60Mpa,横向拉伸强度达到55Mpa,延伸率为40%,热合强度达到18N·15mm-1。
取上述药品包装用PVC复合膜,在自然光线明亮处,正视目测,透明,色泽均匀,没有凹凸发皱、油污、异物、穿孔、杂质。每100*100cm2中,0.5mm及0.8mm的黑点、晶点,不超过5颗,没有1.0mm以上的黑点、晶点。
取上述药品包装用PVC复合膜适量,照包装材料红外光谱测定法(YBB60012012)第四法测定,与对照图谱基本一致。
取上述药品包装用PVC复合膜,进行冷型冲压,在冲压形成的泡罩膜面变色,由透明色变为白色。
使该防反光PVC复合膜包装药品,采用摄像检测自动剔除***检测时有效避免出现反光现象,提高检出率。
实施例2
药品包装用防反光PVC复合膜的制备方法同实施例1,其中复合膜的组分组成如表1所示。
表1复合膜的组成
其中,产品1使用的MBS树脂的市售型号为BTA730,产品2为BTA707,产品3为B-513,对比1为BTA730。产品1使用的甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物为市售的P530A,产品2为PA-20,产品3为P-551J,对比2为P-551J;产品1使用的滑剂的市售型号为316A,产品2为聚乙烯蜡,产品3、对比1和对比2均为高密度氧化聚乙烯蜡。
对制备的产品进行性能检测,具体结果如表2所示。
表2产品力学性能
Claims (5)
1.一种药品包装用防反光PVC复合膜,其特征在于,由以下重量份数组分组成:PVC树脂粉100份,MBS树脂15-25份,甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物2-5份,硫醇辛基锡3.5-5.5份,滑剂0.3-0.5份;所述的药品包装用防反光PVC复合膜由以下步骤制备而成:
1)将各组分加热溶解得到混合物料;
2)将混合物料放入冷锅,30-40℃急冷;过滤筛分,挤出,开炼,塑化脱除内部气泡;
3)将混合物料导入压延机,对物料压延处理挤出;
4)利用收卷机对复合膜进行收卷,利用分切机对复合膜进行分切,检验后包装入库。
2.根据权利要求1所述药品包装用防反光PVC复合膜,其特征在于,由以下重量份数组分组成:PVC树脂粉100份,MBS树脂20份,甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物5份,硫醇辛基锡5份,滑剂0.4份。
3.根据权利要求1所述药品包装用防反光PVC复合膜,其特征在于,由以下重量份数组分组成:PVC树脂粉100份,MBS树脂25份,甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物4份,硫醇辛基锡4份,滑剂0.5份。
4.权利要求1-3任一所述药品包装用防反光PVC复合膜的制备方法,其特征在于,包括以下步骤:
1)将各组分加热溶解得到混合物料;
2)将混合物料放入冷锅,30-40℃急冷;过滤筛分,挤出,开炼,塑化脱除内部气泡;
3)将混合物料导入压延机,对物料压延处理挤出;采用压延机对物料依次进行处理,采用五辊压延,各压延辊的温度分别为200℃、210℃、215℃、210℃及200℃;剥离辊共有2组,温度分别为100℃和90℃;缓冷辊为10组,各辊温度依次由35℃升到55℃;冷却辊为20组,冷却温度为40-45℃;
4)利用收卷机对复合膜进行收卷,利用分切机对复合膜进行分切,检验后包装入库。
5.根据权利要求4所述药品包装用防反光PVC复合膜的制备方法,其特征在于,步骤1)中,将PVC树脂粉和MBS树脂,搅拌加热到70℃,然后加入甲基丙烯酸甲酯和丙烯酸烷基酯的共聚物,搅拌加热到85℃,加入硫醇辛基锡,滑剂,加热到100℃溶解。
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