CN104494231A - 一种防火功能的恒温铁皮镀膜 - Google Patents
一种防火功能的恒温铁皮镀膜 Download PDFInfo
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Abstract
本发明提出的一种防火功能的恒温铁皮镀膜，它包括：涂覆在经过软溶处理后的马口铁上的依次涂布的复合层、恒温层，防火层和油膜层；恒温层是通过将保温剂涂布在PE膜或EAV膜上；防火层是选用防火涂料涂布在恒温层的表面，该镀膜的镀层简单，步骤易操作，流程简单，通过将恒温镀膜涂覆在铁皮罐头上后，有效减少因外界温差而导致的罐头内的温差，防止罐头内食物或材质变质的情况发生；通过在恒温层的外侧涂覆防火层，防止因意外而出现明火时，避免铁皮罐头成为另一个热源，减少热传递，降低意外发生的几率。
Description
技术领域
本发明涉及一种铁皮镀膜，具体是一种防火功能的恒温铁皮镀膜。
背景技术
马口铁是传统的制罐材料，至今仍是制作食品罐头的主要罐材。马口铁是镀锡薄钢板简称镀锡板，马口铁有光亮的外观，良好的耐蚀性和制罐工艺性能，易于焊接，适于涂料和印铁。马口铁除大量用于罐头工业外，还制作糖果、饼干、茶叶、奶粉等听盒；也可用于某些工业产品如化学产品、化妆品等的罐类和盒装。
马口铁的表面电镀锡，主要是锡的电极电位比铁高，化学性能稳定，因此可对钢板起防锈保护作用。但必须保持镀锡层的完整，若被划破，甚至仅有微小的孔隙而暴露出钢基，也会因产生阳极腐蚀而使钢板很快被腐蚀。马口铁电镀后的镀锡层孔隙多，会导致抗蚀性能不好，现有技术是必须在电镀后进行软溶处理，软溶处理就是将镀锡带钢加热到231.9℃以上进行淬火，使镀锡板表面形成厚约0.6～0.9g/m2的抗腐蚀铁-锡合金层，使其表面分别生成锡合金层和氧化锡层。
在罐头外面涂覆有涂料，涂料是由有机高分子树脂，如环氧树脂、酚醛树脂和溶剂如环己酮、二甲苯等及少量添加剂按一定的内壁表面，再经200℃以上的温度烘烤。涂料的作用是隔离罐壁与内容物，防蚀和阻溶出的重金属离子铅、铁、锌等对食品的污染。
由以上材料和工艺方法的介绍和可知，现有技术的罐头在防腐防锈防水上已经达到了空前的技术，但是，在一些昼夜温差较大的地方，罐头堆在仓库中或者在运输的过程中，因昼夜温差大，如不及时售出或者食用，而罐头的主要材料是马口铁，马口铁具有铁的性能，导热性能好，因此，昼夜温差大的条件下，就非常容易导致罐头内食物变质的情况。
发明内容
发明目的：为了解决现有技术的不足，本发明提供一种减小罐头内温差的镀膜。
技术方案：为了实现以上目的，本发明所述的一种防火功能的恒温铁皮镀膜，它包括：涂覆在经过软溶处理后的马口铁上的依次涂布的复合层、恒温层，防火层和油膜层；恒温层是通过将保温剂涂布在PE膜或EAV膜上；防火层是选用防火涂料涂布在恒温层的表面。
作为本发明的进一步优选，所述的保温剂为选用LDPE或LLDPE作载体，将碳酸钙、硅藻土、滑石粉中的一种或多种塑化而成；
作为本发明的进一步优选，所述的保温剂在LDPE或LLDPE中所占质量比为45％～60％。
作为本发明的进一步优选，所述的防火涂料是选用按重量百分比为50％～65％的无机填料、10％～30％的粘合剂、15％～25％的添加剂、15％～20％的催化剂聚磷酸铵、10％～20％的发泡剂三聚氰胺充分混合形成防火浆料，再通过砂磨机或球磨机研磨分散防火浆料，加进成膜剂后再充分搅拌5min～10min，形成防火涂料。
作为本发明的进一步优选，所述的油膜层是通过棉子油或癸二酸二辛酯涂布在防火层的表面形成。
作为本发明的进一步优选，所述的复合层为UV胶或PK-5975UV胶，以上两种胶水皆无色，低气味、低防腐，透明粘稠液体，无机械杂质，高度透明，高透光性，胶层收缩小，固化后在潮湿环境下长期不会发黄，固化速度快，几秒钟定位，几分钟达到最高强度，极大地提高了工作效率；粘接力强，低粘度，高强度，大面积粘接无气泡，易于清洗，满足粘接要求。
作为本发明的进一步优选，复合层的厚度为0.5mm～1mm，保温层)的厚度为0.01mm～0.5mm，防火层的厚度为0.15mm～0.5mm，油膜层的厚度为0.005mm～0.01mm。
有益效果：本发明提供的一种防火功能的恒温铁皮镀膜，通过在铁皮罐头外壁上恒温层和防火层，该镀膜的镀层简单，步骤易操作，流程简单，通过将恒温镀膜涂覆在铁皮罐头上后，有效减少因外界温差而导致的罐头内的温差，防止罐头内食物或材质变质的情况发生；通过在恒温层的外侧涂覆防火层，防止因意外而出现明火时，避免铁皮罐头成为另一个热源，减少热传递，降低意外发生的几率。
附图说明
图1为本发明局的结构示意图。
具体实施方式
下面结合附图，进一步阐明本发明。
如图1所示，本发明所述的一种防火功能的恒温铁皮镀膜，它包括：涂覆在经过软溶处理后的马口铁5上的依次涂布的复合层1、恒温层2，防火层3和油膜层4。
实施例1
在经过软溶处理后的马口铁5上涂布一层厚度为0.5mm的UV胶形成复合层1。
将恒温层2和复合层1复合，恒温层2是通过将保温剂涂布在PE膜上，保温剂为选用LDPE作载体，将碳酸钙和硅藻土混合后塑化而成，保温剂在LDPE中所占质量比为45％，保温层2的厚度为0.01mm。
在保温层2上涂布一层防火层3，防火层3是选用防火涂料涂布在恒温层2的表面，防火涂料是选用按重量百分比为50％的无机填料、10％的粘合剂、15％的添加剂、15％的催化剂聚磷酸铵、10％的发泡剂三聚氰胺充分混合形成防火浆料，再通过砂磨机研磨分散防火浆料，加进成膜剂后再充分搅拌5min，形成防火涂料涂布在恒温层2上形成防火层3，防火层3的厚度为0.15mm。
防火层3涂布完成后，再选用棉子油涂布在防火层3的表面形成油膜层4，油膜层的厚度为0.005mm。
实施例2
在经过软溶处理后的马口铁5上涂布一层厚度为0.6mm的PK-5975UV胶形成复合层1。
将恒温层2和复合层1复合，恒温层2是通过将保温剂涂布在EAV膜上，保温剂为选用LLDPE作载体，将硅藻土和滑石粉中混合后塑化而成，保温剂在LLDPE中所占质量比为48％，保温层2的厚度为0.1mm。
在保温层2上涂布一层防火层3，防火层3是选用防火涂料涂布在恒温层2的表面，防火涂料是选用按重量百分比为55％的无机填料、15％的粘合剂、18％的添加剂、18％的催化剂聚磷酸铵、12％的发泡剂三聚氰胺充分混合形成防火浆料，再通过球磨机研磨分散防火浆料，加进成膜剂后再充分搅拌6min，形成防火涂料涂布在恒温层2上形成防火层3，防火层3的厚度为0.2mm。
防火层3涂布完成后，再选用癸二酸二辛酯涂布在防火层3的表面形成油膜层4，油膜层的厚度为0.006mm。
实施例3
在经过软溶处理后的马口铁5上涂布一层厚度为0.7mm的UV胶形成复合层1。
将恒温层2和复合层1复合，恒温层2是通过将保温剂涂布在PE膜上，保温剂为选用LDPE作载体，将碳酸钙、硅藻土、滑石粉混合后塑化而成，保温剂在LDPE中所占质量比为50％，保温层2的厚度为0.25mm。
在保温层2上涂布一层防火层3，防火层3是选用防火涂料涂布在恒温层2的表面，防火涂料是选用按重量百分比为56％的无机填料、18％的粘合剂、18％的添加剂、18％的催化剂聚磷酸铵、15％的发泡剂三聚氰胺充分混合形成防火浆料，再通过砂磨机研磨分散防火浆料，加进成膜剂后再充分搅拌8min，形成防火涂料涂布在恒温层2上形成防火层3，防火层3的厚度为0.3mm。
防火层3涂布完成后，再选用棉子油或癸二酸二辛酯涂布在防火层3的表面形成油膜层4，油膜层的厚度为0.007mm。
实施例4
在经过软溶处理后的马口铁5上涂布一层厚度为0.8mm的PK-5975UV胶形成复合层1。
将恒温层2和复合层1复合，恒温层2是通过将保温剂涂布在PE膜上，保温剂为选用LLDPE作载体，将碳酸钙和滑石粉混合后塑化而成，保温剂在LLDPE中所占质量比为55％，保温层2的厚度为0.3mm。
在保温层2上涂布一层防火层3，防火层3是选用防火涂料涂布在恒温层2的表面，防火涂料是选用按重量百分比为57％的无机填料、20％的粘合剂、20％的添加剂、18.5％的催化剂聚磷酸铵、16％的发泡剂三聚氰胺充分混合形成防火浆料，再通过球磨机研磨分散防火浆料，加进成膜剂后再充分搅拌9min，形成防火涂料涂布在恒温层2上形成防火层3，防火层3的厚度为0.4mm。
防火层3涂布完成后，再选用棉子油或癸二酸二辛酯涂布在防火层3的表面形成油膜层4，油膜层的厚度为0.008mm。
实施例5
在经过软溶处理后的马口铁5上涂布一层厚度为0.9mm的PK-5975UV胶形成复合层1。
将恒温层2和复合层1复合，恒温层2是通过将保温剂涂布在EAV膜上，保温剂为选用LLDPE作载体，将硅藻土和滑石粉中混合后塑化而成，保温剂在LLDPE中所占质量比为58％，保温层2的厚度为0.4mm。
在保温层2上涂布一层防火层3，防火层3是选用防火涂料涂布在恒温层2的表面，防火涂料是选用按重量百分比为60％的无机填料、29％的粘合剂、24％的添加剂、19％的催化剂聚磷酸铵、19％的发泡剂三聚氰胺充分混合形成防火浆料，再通过砂磨机研磨分散防火浆料，加进成膜剂后再充分搅拌9min，形成防火涂料涂布在恒温层2上形成防火层3，防火层3的厚度为0.4mm。
防火层3涂布完成后，再选用癸二酸二辛酯涂布在防火层3的表面形成油膜层4，油膜层的厚度为0.009mm。
实施例6
在经过软溶处理后的马口铁5上涂布一层厚度为1mm的UV胶形成复合层1。
将恒温层2和复合层1复合，恒温层2是通过将保温剂涂布在EAV膜上，保温剂为选用LDPE作载体，将碳酸钙、硅藻土和滑石粉混合后塑化而成，保温剂在LLDPE中所占质量比为60％，保温层2的厚度为0.5mm。
在保温层2上涂布一层防火层3，防火层3是选用防火涂料涂布在恒温层2的表面，防火涂料是选用按重量百分比为65％的无机填料、30％的粘合剂、25％的添加剂、20％的催化剂聚磷酸铵、20％的发泡剂三聚氰胺充分混合形成防火浆料，再通过砂磨机或球磨机研磨分散防火浆料，加进成膜剂后再充分搅拌10min，形成防火涂料涂布在恒温层2上形成防火层3，防火层3的厚度为0.5mm。
防火层3涂布完成后，再选用棉子油涂布在防火层3的表面形成油膜层4，油膜层的厚度为0.01mm。
上述实施例只为说明本发明的技术构思及特点，其目的是让熟悉该技术领域的技术人员能够了解本发明的内容并据以实施，并不能以此来限制本发明的保护范围。凡根据本发明精神实质所做出的等同变换或修饰，都应涵盖在本发明的保护范围之内。
Claims (7)
1.一种防火功能的恒温铁皮镀膜，其特征在于：它包括：涂覆在经过软溶处理后的马口铁(5)上的依次涂布的复合层(1)、恒温层(2)，防火层(3)和油膜层(4)；
所述的恒温层(2)是通过将保温剂涂布在PE膜或EAV膜上；
所述的防火层(3)是选用防火涂料涂布在恒温层(2)的表面。
2.根据权利要求1所述的一种防火功能的恒温铁皮镀膜，其特征在于：所述的保温剂为选用LDPE或LLDPE作载体，将碳酸钙、硅藻土、滑石粉中的一种或多种塑化而成。
3.根据权利要求2所述的一种防火功能的恒温铁皮镀膜，其特征在于：所述的保温剂在LDPE或LLDPE中所占质量比为45％～60％。
4.根据权利要求1所述的一种防火功能的恒温铁皮镀膜，其特征在于：所述的防火涂料是选用按重量百分比为50％～65％的无机填料、10％～30％的粘合剂、15％～25％的添加剂、15％～20％的催化剂聚磷酸铵、10％～20％的发泡剂三聚氰胺充分混合形成防火浆料，再通过砂磨机或球磨机研磨分散防火浆料，加进成膜剂后再充分搅拌5min～10min，形成防火涂料。
5.根据权利要求1所述的一种防火功能的恒温铁皮镀膜，其特征在于：所述的油膜层(4)是通过棉子油或癸二酸二辛酯涂布在防火层(3)的表面形成。
6.根据权利要求1所述的一种防火功能的恒温铁皮镀膜，其特征在于：所述的复合层为UV胶或PK-5975UV胶。
7.根据权利要求1所述的一种防火功能的恒温铁皮镀膜，其特征在于：复合层(1)的厚度为0.5mm～1mm，保温层(2)的厚度为0.01mm～0.5mm，防火层(3)的厚度为0.15mm～0.5mm，油膜层(4)的厚度为0.005mm～0.01mm。
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| CN105197378A (zh) * | 2015-10-30 | 2015-12-30 | 苏州凯康化工科技有限公司 | 一种具有恒温功能的水性涂料桶 |
| CN105236024A (zh) * | 2015-10-30 | 2016-01-13 | 苏州凯康化工科技有限公司 | 一种具有耐高温防氧化功能的水性漆桶 |
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| CN105236024A (zh) * | 2015-10-30 | 2016-01-13 | 苏州凯康化工科技有限公司 | 一种具有耐高温防氧化功能的水性漆桶 |
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