CN112721359A - 一种新型缠绕膜及其加工工艺 - Google Patents

一种新型缠绕膜及其加工工艺 Download PDF

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CN112721359A
CN112721359A CN202011578961.2A CN202011578961A CN112721359A CN 112721359 A CN112721359 A CN 112721359A CN 202011578961 A CN202011578961 A CN 202011578961A CN 112721359 A CN112721359 A CN 112721359A
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layer
parts
reinforcing layer
winding
extruder
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黄亮
方为民
胡继超
俞宙
程杰
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Huangshan Yuandian New Material Technology Co ltd
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Abstract

本发明属于包装膜设备领域，具体的说是一种新型缠绕膜及其加工工艺，包括缠绕膜本体，所述缠绕膜本体的上、下端面粘贴有第一加强层，上下端面的所述第一加强层粘贴有第二加强层，上下端面的所述第二加强层粘贴有防水层，下端面的所述防水层通过第一粘结层粘贴有抗静电层，上端面的所述防水层通过第二粘结层粘贴有反光层。通过第一加强层和第二加强层可以提高缠绕膜本体的强度，避免被尖刺物刺破，防水层具有防水的作用，从而可以防止雨水浸湿缠绕膜内的物品，抗静电层的主要材质为乙氧基化烷基胺，能够起到较好的防静电作用，避免静电吸附空气中的灰尘。反光层可以将太阳光反射出去，降低太阳光照射产生的温度。

Description

一种新型缠绕膜及其加工工艺
技术领域
本发明属于包装膜设备领域，具体的说是一种新型缠绕膜及其加工工艺。
背景技术
缠绕膜又称“拉伸膜”，具有优越的抗拉性、延伸率大、自粘性好、抗刺穿性和抗撕性，可用于手工缠绕膜，也可用于机用缠绕膜，被广泛用于化工产品、电子产品箱、陶瓷产品、机电设备等集装包装。
近年来，随着缠绕膜生产技术的不断发展，其应用领域越来越广，包括产品的包装、密封、防锈等方面。但是对于质地较脆的产品如玻璃品而言还需要加设体积较大且难以重复利用的泡沫塑料进行包装。一方面泡沫塑料体积较大，所以会占用过多的运输空间；另一方面泡沫塑料强度较低所以需要外套包装箱加以保护，而包装箱又需要进行密封操作，从而提高包装成本。而缠绕膜的成本较低且厚度小，所以理论上恰好能够弥补泡沫塑料的不足之处。
但是现有的缠绕膜在缠绕物品时，缠绕膜容易被一些物品的拐角或者尖角刺，造成缠绕膜断裂，不能继续缠绕或者缠绕后的密封性较差，不能达到所要的密封要求，从而使得物品在雨天渗水，影响产品质量。
发明内容
针对上述背景技术中提到的技术问题，因此，本发明提供了一种新型缠绕膜及其加工工艺。
一种新型缠绕膜，包括缠绕膜本体，所述缠绕膜本体的上、下端面粘贴有第一加强层，上下端面的所述第一加强层粘贴有第二加强层，上下端面的所述第二加强层粘贴有防水层，下端面的所述防水层通过第一粘结层粘贴有抗静电层，上端面的所述防水层通过第二粘结层粘贴有反光层。
优选的，所述第一粘结层和所述第二粘结层为丙烯酸胶黏剂。
优选的，所述缠绕膜本体包括改性聚酯酰胺脲树脂、改性淀粉、姜黄素、聚乳酸、纳米二氧化硅、全烷基丙烯酸酯共聚乳液、硅烷偶联剂、玻璃纤维、抗氧剂和紫外线吸收剂制备而成。
优选的，所述第一加强层的材质为有机硅压敏胶。
优选的，所述第二加强层材质为聚氨酯橡胶。
优选的，其中，改性聚酯酰胺脲树脂10-20份、改性淀粉15至25份、姜黄素4份至6份、聚乳酸18至38份、纳米二氧化硅15至24份、全烷基丙烯酸酯共聚乳液24至36份、硅烷偶联剂12至15份、玻璃纤维4至8份、抗氧剂3至6份和紫外线吸收剂7至9份。
优选的，所述缠绕膜本体厚度为10至20微米，所述第一加强层和所述第二加强层的厚度为25至40微米。
一种述缠绕膜的加工工艺，包括如下步骤：
S1、制备缠绕膜本体：a、将原料混合并进行除尘处理；b、将a步骤中除尘过后的原材料均匀加入挤出机中，挤出机能够将原料充分混合并将其加热熔融形成熔体，原料的熔体温度控制在250℃-280℃；c、将b步骤中的原料熔体由挤出机传送到流延机内，流延机能够将熔体原料加工成薄膜层，薄膜层在流延机上的冷却辊的作用下能够形成缠绕膜本体；
S2、制备第一加强层：a、按照重量份数比称取各原料组分；b、将步骤a中的原料投入至均质设备中，均质设备温度控制在90-95℃，均质搅拌转速在2000-3000转/分钟，均质处理2-3h，获得均质混合料；c、将步骤S2中的均质混合料取出并加入至挤压机中，挤压成型，冷却，得到第一加强层成品；
S3、制备第二加强层：a、按照重量份数比称取各原料组分；b、将步骤a中的原料投入至均质设备中，均质设备温度控制在90-95℃，均质搅拌转速在2000-3000转/分钟，均质处理1-2h，获得均质混合料；c、将步骤S2中的均质混合料取出并加入至挤压机中，挤压成型，冷却，得到第二加强层成品；
S4、将步骤S2中第一加强层铺展在步骤S1中缠绕膜本体上下端面，通过挤出机共挤成型，再将步骤S3中第二加强层铺展在上下端面的第二加强层上，通过挤出机共挤成型；
S5、再将防水层粘贴在上下端面第二加强层上，再将上下端面的第二加强层上分别粘贴有反光层和抗静电层；
S6、测量厚度；
S7、修边收卷；
S8、检验包装。
本发明提供了一种新型缠绕膜及其加工工艺，有益效果在于:通过第一加强层和第二加强层可以提高缠绕膜本体的强度，避免被尖刺物刺破，防水层具有防水的作用，从而可以防止雨水浸湿缠绕膜内的物品，抗静电层的主要材质为乙氧基化烷基胺，能够起到较好的防静电作用，避免静电吸附空气中的灰尘。反光层可以将太阳光反射出去，降低太阳光照射产生的温度。
附图说明
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：
图1为本发明装置的结构示意图；
图中:1、缠绕膜本体；2、第一加强层；3、第二加强层；4、抗静电层；5、防水层；6、第一粘结层；7、第二粘结层；8、反光层。
具体实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者间接在该另一个元件上。当一个元件被称为是“连接于”另一个元件，它可以是直接连接到另一个元件或间接连接至该另一个元件上。
下面结合附图详细说明本发明的最优实施方式。
如图1所示，一种新型缠绕膜，包括缠绕膜本体1，所述缠绕膜本体1的上、下端面粘贴有第一加强层2，上下端面的所述第一加强层2粘贴有第二加强层3，上下端面的所述第二加强层3粘贴有防水层5，下端面的所述防水层5通过第一粘结层6粘贴有抗静电层4，上端面的所述防水层5通过第二粘结层7粘贴有反光层8。所述第一加强层2的材质为有机硅压敏胶，所述第二加强层3材质为聚氨酯橡胶，通过第一加强层2和第二加强层3可以提高缠绕膜本体1的强度，避免被尖刺物刺破，防水层5具有防水的作用，从而可以防止雨水浸湿缠绕膜内的物品，抗静电层4的主要材质为乙氧基化烷基胺，能够起到较好的防静电作用，避免静电吸附空气中的灰尘。反光层8可以将太阳光反射出去，降低太阳光照射产生的温度。
其中，所述第一粘结层6和所述第二粘结层7为丙烯酸胶黏剂，丙烯酸胶黏剂粘性大，提高了粘贴强度。
另外，所述缠绕膜本体1包括改性聚酯酰胺脲树脂15份、改性淀粉21份、姜黄素5份、聚乳酸30份、纳米二氧化硅21份、全烷基丙烯酸酯共聚乳液25份、硅烷偶联剂15份、玻璃纤维6份、抗氧剂4份和紫外线吸收剂8份制备而成。姜黄素是一种从一些植物中提取的天然酚类物质，具有抗菌、消炎、抗氧化等多种功能，应用十分广泛，从而使本发明缠绕膜抗菌、消炎、抗氧化等优点。
在本发明中，以改性聚酯酰胺脲树脂和改性淀粉作为制作缠绕膜的基体，使得所制得的缠绕膜具有良好的降解性，且其中改性淀粉具有来源广泛、成本低廉的优点，能有效降低缠绕膜的生产成本，适于工业生产。
缠绕膜本体1厚度为10至20微米，所述第一加强层2和所述第二加强层3的厚度为25至40微米。
一种述缠绕膜的加工工艺，包括如下步骤：
S1、制备缠绕膜本体：a、将原料混合并进行除尘处理；b、将a步骤中除尘过后的原材料均匀加入挤出机中，挤出机能够将原料充分混合并将其加热熔融形成熔体，原料的熔体温度控制在250℃-280℃；c、将b步骤中的原料熔体由挤出机传送到流延机内，流延机能够将熔体原料加工成薄膜层，薄膜层在流延机上的冷却辊的作用下能够形成缠绕膜本体；
S2、制备第一加强层：a、按照重量份数比称取各原料组分；b、将步骤a中的原料投入至均质设备中，均质设备温度控制在90-95℃，均质搅拌转速在2000-3000转/分钟，均质处理2-3h，获得均质混合料；c、将步骤S2中的均质混合料取出并加入至挤压机中，挤压成型，冷却，得到第一加强层成品；
S3、制备第二加强层：a、按照重量份数比称取各原料组分；b、将步骤a中的原料投入至均质设备中，均质设备温度控制在90-95℃，均质搅拌转速在2000-3000转/分钟，均质处理1-2h，获得均质混合料；c、将步骤S2中的均质混合料取出并加入至挤压机中，挤压成型，冷却，得到第二加强层成品；
S4、将步骤S2中第一加强层铺展在步骤S1中缠绕膜本体上下端面，通过挤出机共挤成型，再将步骤S3中第二加强层铺展在上下端面的第二加强层上，通过挤出机共挤成型；
S5、再将防水层粘贴在上下端面第二加强层上，再将上下端面的第二加强层上分别粘贴有反光层和抗静电层；
S6、测量厚度；测量缠绕膜的厚度，是否达到需求的厚度。
S7、修边收卷；将多余的缠绕膜剪裁掉，然后进行收卷。
S8、检验包装。
性能测试
表1为传统的缠绕本体和本发明中缠绕膜本体的强度对比
传统的单层缠绕膜的强度/MPa 具有加强层的缠绕膜的强度/MPa
30 60
从表1中可以看出，本发明中的缠绕膜的强度是传统单层缠绕膜的强度的2倍，通过设置了第一加强层和第二加强层大大的提高了缠绕膜的强度，避免了缠绕膜很容易被尖刺物刺破。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (7)

1.一种新型缠绕膜，其特征在于，包括缠绕膜本体，所述缠绕膜本体的上、下端面粘贴有第一加强层，上下端面的所述第一加强层粘贴有第二加强层，上下端面的所述第二加强层粘贴有防水层，下端面的所述防水层通过第一粘结层粘贴有抗静电层，上端面的所述防水层通过第二粘结层粘贴有反光层。
2.根据权利要求1所述新型缠绕膜，其特征在于，所述第一粘结层和所述第二粘结层为丙烯酸胶黏剂。
3.根据权利要求1所述新型缠绕膜，其特征在于，所述缠绕膜本体包括改性聚酯酰胺脲树脂、改性淀粉、姜黄素、聚乳酸、纳米二氧化硅、全烷基丙烯酸酯共聚乳液、硅烷偶联剂、玻璃纤维、抗氧剂和紫外线吸收剂制备而成。
4.根据权利要求1所述新型缠绕膜，其特征在于，所述第一加强层的材质为有机硅压敏胶；所述第二加强层材质为聚氨酯橡胶。
5.根据权利要求3所述新型缠绕膜，其特征在于，所述改性聚酯酰胺脲树脂10-20份、改性淀粉15至25份、姜黄素4份至6份、聚乳酸18至38份、纳米二氧化硅15至24份、全烷基丙烯酸酯共聚乳液24至36份、硅烷偶联剂12至15份、玻璃纤维4至8份、抗氧剂3至6份和紫外线吸收剂7至9份。
6.根据权利要求1至5任一所述新型缠绕膜，其特征在于，所述缠绕膜本体厚度为10至20微米，所述第一加强层和所述第二加强层的厚度为25至40微米。
7.基于权利要求1至6所述缠绕膜的加工工艺，其特征在于，包括如下步骤：
S1、制备缠绕膜本体：a、将原料混合并进行除尘处理；b、将a步骤中除尘过后的原材料均匀加入挤出机中，挤出机能够将原料充分混合并将其加热熔融形成熔体，原料的熔体温度控制在250℃-280℃；c、将b步骤中的原料熔体由挤出机传送到流延机内，流延机能够将熔体原料加工成薄膜层，薄膜层在流延机上的冷却辊的作用下能够形成缠绕膜本体；
S2、制备第一加强层：a、按照重量份数比称取各原料组分；b、将步骤a中的原料投入至均质设备中，均质设备温度控制在90-95℃，均质搅拌转速在2000-3000转/分钟，均质处理2-3h，获得均质混合料；c、将步骤S2中的均质混合料取出并加入至挤压机中，挤压成型，冷却，得到第一加强层成品；
S3、制备第二加强层：a、按照重量份数比称取各原料组分；b、将步骤a中的原料投入至均质设备中，均质设备温度控制在90-95℃，均质搅拌转速在2000-3000转/分钟，均质处理1-2h，获得均质混合料；c、将步骤S2中的均质混合料取出并加入至挤压机中，挤压成型，冷却，得到第二加强层成品；
S4、将步骤S2中第一加强层铺展在步骤S1中缠绕膜本体上下端面，通过挤出机共挤成型，再将步骤S3中第二加强层铺展在上下端面的第二加强层上，通过挤出机共挤成型；
S5、再将防水层粘贴在上下端面第二加强层上，再将上下端面的第二加强层上分别粘贴有反光层和抗静电层；
S6、测量厚度；
S7、修边收卷；
S8、检验包装。
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