CN107459724A - 一种发泡塑料包装盒制备方法 - Google Patents
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Abstract
本发明公开的一种发泡塑料包装盒制备方法，所述的发泡塑料盒的各原料组分的重量份为：聚苯乙稀树脂90～110；碳酸氢钠NaHCO30.8～0.9；硅油0.046～0.078；改性聚苯乙烯树脂11～14；工业淀粉2.5～5。本发明减少了对环境的污染，非常环保，同时后续加工少，成本低，性价比好。
Description
技术领域
本发明涉及一种包装盒的材料，具体地说涉及一种发泡塑料包装盒制备方法。
背景技术
包装盒要求相对牢固，若用纸板来做，纸板必须厚实，这样对纸的消耗比较大，纸板的使用必须是以牺牲森林资源为代价的，同时造纸业的废水排放方面也对环境带来较大污染，虽说是纸盒，但纸板的转折必须要用无纺布或化纤织物作辅料粘接复合，组合使用来增加防折强度，因此人工费用比较大，工序烦多。另一类比较厚实的包装礼盒是用中密度板生产制作，中密度板生产对电能的消耗量比较大，用脲醛树脂作为胶水，会释放游离的甲醛，同时表面处理势必进行油漆的喷涂，这样不仅会污染环境，而且费工费时，人工投入大，生产成本比较高，由于竞争，甚至使用劣质油漆，劣质油漆会长时间产生难闻的气味，从而污染了消费者居住环境，对健康产生不利影响。
发明内容
本发明所要解决的技术问题是提供一种发泡塑料包装盒制备方法。
本发明具体技术方案步骤如下：
原料组分的质量为：聚苯乙稀树脂100kg；碳酸氢钠850g；硅油65g；赛科825改性聚苯乙烯树脂12.5kg；工业淀粉4kg；
第一步，根据做出两付放置在挤出料端口的模具，模具的纵截面呈“L”型，盒盖模具的宽度为35mm左右，盒底模具的宽度为60mm；
第二步，将上述的各组分投加到料箱中，并在料箱中加热、搅拌至物料熔融，发泡剂碳酸氢钠一般在120℃以上开始发泡。发泡剂碳酸氢钠充分发泡，当温度到250摄氏度时熔融状态的物料由螺杆挤压机挤出到端口模具中，发泡条通过端口模具进行初次造型，这时在发泡条的外表面复合印有需求纹理的PVC薄膜层，加工温度220℃，然后在水槽中进行冷却定型，再把发泡条的温度升高到180摄氏度，进行滚压花型处理；
第三步，再加工后的发泡条表面与实木逼真、完美，成古朴优美、庄重精致的仿木纹理，手感如轻质仿木条；
第四步，把两种宽度不同的发泡条，分别切割成两个50cm长，两个40cm长的发泡条，在发泡条的两端呈45度角的切面涂上专用胶水，然后用带微翼的“L”形直角枪钉连接，薄枪钉厚度一般在7mm左右，这样两根切有45度角的发泡条构成框架的一个直角，用同样方法做成另一个直角，用这种方法做成包装盒的盒底框架与盒盖框架；
第五步，两个面板分别采用发泡塑料板，然后通过印刷品用背胶的方法附着在发泡塑料板上，通过枪钉和粘结剂把它们分别固定在盒盖框架、盒底框架的“L”沿边上，就完成了面板与盒盖框架与盒底框架的固定连接。
本发明制备的包装盒，密度为0.5g/mm3
有益效果：本发明的包装盒使用完后，由于包装盒的精美，无毒无味，多项优异特性，消费者往往不舍得遗弃，完全可以用作首饰盒或糖果盒、炒货瓜子盒及水果盒等，即使少有遗弃由于盒子的框架本身是短条形，而塑料经过发泡变得较轻而且疏松、多孔，变脆，在自然界中由于碾压和外力作用，就会使框条碎裂成更小块和许多疏松多孔的颗粒状小块，适量工业淀粉的加入，既不影响产品质量也不增加生产成本，来加快发泡塑料在自然界中的分化和降解，在自然环境中，本发明制备的发泡塑料条在3-5年内得到风化、裂解，这样减少对环境的破害。
具体实施方式
下面结合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。
本实施方式的一种发泡塑料包装盒制备方法，本发明具体技术方案步骤如下：
原料组分的质量为：聚苯乙稀树脂100kg；碳酸氢钠850g；硅油65g；赛科825改性聚苯乙烯树脂12.5kg；工业淀粉4kg；
第一步，根据做出两付放置在挤出料端口的模具，模具的纵截面呈“L”型，盒盖模具的宽度为35mm左右，盒底模具的宽度为60mm；
第二步，将上述的各组分投加到料箱中，并在料箱中加热、搅拌至物料熔融，发泡剂碳酸氢钠一般在120℃以上开始发泡。发泡剂碳酸氢钠充分发泡，当温度到250摄氏度时熔融状态的物料由螺杆挤压机挤出到端口模具中，发泡条通过端口模具进行初次造型，这时在发泡条的外表面复合印有需求纹理的PVC薄膜层，加工温度220℃，然后在水槽中进行冷却定型，再把发泡条的温度升高到180摄氏度，进行滚压花型处理；
第三步，再加工后的发泡条表面与实木逼真、完美，成古朴优美、庄重精致的仿木纹理，手感如轻质仿木条；
第四步，把两种宽度不同的发泡条，分别切割成两个50cm长，两个40cm长的发泡条，在发泡条的两端呈45度角的切面涂上专用胶水，然后用带微翼的“L”形直角枪钉连接，薄枪钉厚度一般在7mm左右，这样两根切有45度角的发泡条构成框架的一个直角，用同样方法做成另一个直角，用这种方法做成包装盒的盒底框架与盒盖框架；
第五步，两个面板分别采用发泡塑料板，然后通过印刷品用背胶的方法附着在发泡塑料板上，通过枪钉和粘结剂把它们分别固定在盒盖框架、盒底框架的“L”沿边上，就完成了面板与盒盖框架与盒底框架的固定连接。
本发明制备的包装盒，密度为0.5g/mm3
有益效果：本发明的包装盒使用完后，由于包装盒的精美，无毒无味，多项优异特性，消费者往往不舍得遗弃，完全可以用作首饰盒或糖果盒、炒货瓜子盒及水果盒等，即使少有遗弃由于盒子的框架本身是短条形，而塑料经过发泡变得较轻而且疏松、多孔，变脆，在自然界中由于碾压和外力作用，就会使框条碎裂成更小块和许多疏松多孔的颗粒状小块，适量工业淀粉的加入，既不影响产品质量也不增加生产成本，来加快发泡塑料在自然界中的分化和降解，在自然环境中，本发明制备的发泡塑料条在3-5年内得到风化、裂解，这样减少对环境的破害。
以上对本发明的一个实施例进行了详细说明，但所述内容仅为本发明的较佳实施例，不能被认为用于限定本发明的实施范围。凡依本发明申请范围所作的均等变化与改进等，均应仍归属于本发明的专利涵盖范围之内。
Claims (1)
1.一种发泡塑料包装盒制备方法，其特征在于，本发明具体技术方案步骤如下：
原料组分的质量为：聚苯乙稀树脂100kg；碳酸氢钠850g；硅油65g；赛科825改性聚苯乙烯树脂12.5kg；工业淀粉4kg；
第一步，根据做出两付放置在挤出料端口的模具，模具的纵截面呈“L”型，盒盖模具的宽度为35mm左右，盒底模具的宽度为60mm；
第二步，将上述的各组分投加到料箱中，并在料箱中加热、搅拌至物料熔融，发泡剂碳酸氢钠一般在120℃以上开始发泡。发泡剂碳酸氢钠充分发泡，当温度到250摄氏度时熔融状态的物料由螺杆挤压机挤出到端口模具中，发泡条通过端口模具进行初次造型，这时在发泡条的外表面复合印有需求纹理的PVC薄膜层，加工温度220℃，然后在水槽中进行冷却定型，再把发泡条的温度升高到180摄氏度，进行滚压花型处理；
第三步，再加工后的发泡条表面与实木逼真、完美，成古朴优美、庄重精致的仿木纹理，手感如轻质仿木条；
第四步，把两种宽度不同的发泡条，分别切割成两个50cm长，两个40cm长的发泡条，在发泡条的两端呈45度角的切面涂上专用胶水，然后用带微翼的“L”形直角枪钉连接，薄枪钉厚度一般在7mm左右，这样两根切有45度角的发泡条构成框架的一个直角，用同样方法做成另一个直角，用这种方法做成包装盒的盒底框架与盒盖框架；
第五步，两个面板分别采用发泡塑料板，然后通过印刷品用背胶的方法附着在发泡塑料板上，通过枪钉和粘结剂把它们分别固定在盒盖框架、盒底框架的“L”沿边上，就完成了面板与盒盖框架与盒底框架的固定连接。
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| CN112976463A (zh) * | 2021-03-29 | 2021-06-18 | 海南铭晟农业发展有限公司 | 一种环保型泡沫包装箱的加工方法 |
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| CN112976463A (zh) * | 2021-03-29 | 2021-06-18 | 海南铭晟农业发展有限公司 | 一种环保型泡沫包装箱的加工方法 |
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