CN113733521A - 一种高密高强度塑料牛奶瓶的生产工艺 - Google Patents
一种高密高强度塑料牛奶瓶的生产工艺 Download PDFInfo
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Abstract
本发明提供一种高密高强度塑料牛奶瓶的生产工艺，包括以下步骤：(1)按质量计，将高密度聚乙烯50‑85份、丙烯基弹性体12‑25份、聚苯硫醚18‑32份、二氧化钛10‑15份、天然抗菌剂1‑12份、抗紫外线防色变剂1‑5份加入到挤出机中，经加热熔融塑化挤出熔融型坯；(2)将熔融型坯放入牛奶瓶的注塑模具中吹胀成型，吹瓶的动作包括：合模→封口→放杆→吹气→排气→启口→升杆→开模；(3)对吹胀成型后的牛奶瓶进行冷却定型；(4)将冷却定型后的牛奶瓶从注塑模具中拿出并检查是否合格，合格的修除废边，不合格的剔除；(5)将修除废边后的合格牛奶瓶进行水洗印染图案；(6)将进行水洗印染图案后的牛奶瓶包装入库。
Description
技术领域
本发明涉及塑料牛奶瓶生产技术领域，尤其涉及一种高密高强度塑料牛奶瓶的生产工艺。
背景技术
牛奶是最古老的天然饮料之一，被誉为“白色血液”，含有丰富的矿物质、钙、磷、铁、锌、铜、锰、钼；最难得的是，牛奶是人体钙的最佳来源，而且钙磷比例非常适当，利于钙的吸收；牛奶的种类复杂，主要成分有水、脂肪、磷脂、蛋白质、乳糖、无机盐等，这些成分均是人类每天的必需品；因此，牛奶的外包装也很重要；现有的塑料牛奶瓶大都存在着在使用过程中易变黄的现象，严重影响了塑料牛奶瓶的使用寿命。
发明内容
本发明正是针对以上技术问题，提供一种高密高强度塑料牛奶瓶的生产工艺。
本发明为实现上述目的，采用以下技术方案：一种高密高强度塑料牛奶瓶的生产工艺，其特征在于，包括以下步骤：
(1)按质量计，将高密度聚乙烯50-85份、丙烯基弹性体12-25份、聚苯硫醚18-32份、二氧化钛10-15份、天然抗菌剂1-12份、抗紫外线防色变剂1-5份加入到挤出机中，经加热熔融塑化挤出熔融型坯；
(2)将熔融型坯放入牛奶瓶的注塑模具中吹胀成型，吹瓶的动作包括：合模→封口→放杆→吹气→排气→启口→升杆→开模；
(3)对吹胀成型后的牛奶瓶进行冷却定型；
(4)将冷却定型后的牛奶瓶从注塑模具中拿出并检查是否合格，合格的修除废边，不合格的剔除；
(5)将修除废边后的合格牛奶瓶进行水洗印染图案；
(6)将进行水洗印染图案后的牛奶瓶包装入库。
所述二氧化钛是由钛白粉、四丁基氟化铵和高密度聚乙烯亚胺按照质量比12-25∶7∶1的比例混合均匀后，再加热至四丁基氟化铵完全熔化后，搅拌均匀制得。
所述抗紫外线防色变剂是将聚氧乙烯硬脂酸酯和聚己内酰胺粉加入至球磨机中，球磨处理50-70min后制得。
所述天然抗菌剂为纳米氧化锌、纳米二氧化钛和纳米二氧化硅中的一种或多种。
所述步骤(1)中挤出机的温度控制在160-190℃，真空负压达0.6MPa以上。
本发明的有益效果是：本发明配方中添加的二氧化钛不仅能防止钛白粉在使用过程中发生氧化现象，还能提高塑料牛奶瓶的致密性；添加的抗紫外线防色变剂使得制得的塑料牛奶瓶不易变色，延长了塑料牛奶瓶的使用寿命；而且本发明中采用的吹瓶工艺吹得的塑料牛奶瓶壁厚均匀，强度高，底部物拼合缝，生产效率较高。
具体实施方式
下面结合实施例对本发明作进一步说明：
一种高密高强度塑料牛奶瓶的生产工艺，其特征在于，包括以下步骤：
(1)按质量计，将高密度聚乙烯50-85份、丙烯基弹性体12-25份、聚苯硫醚18-32份、二氧化钛10-15份、天然抗菌剂1-12份、抗紫外线防色变剂1-5份加入到挤出机中，经加热熔融塑化挤出熔融型坯；
(2)将熔融型坯放入牛奶瓶的注塑模具中吹胀成型，吹瓶的动作包括：合模→封口→放杆→吹气→排气→启口→升杆→开模；
(3)对吹胀成型后的牛奶瓶进行冷却定型；
(4)将冷却定型后的牛奶瓶从注塑模具中拿出并检查是否合格，合格的修除废边，不合格的剔除；
(5)将修除废边后的合格牛奶瓶进行水洗印染图案；
(6)将进行水洗印染图案后的牛奶瓶包装入库。
所述二氧化钛是由钛白粉、四丁基氟化铵和高密度聚乙烯亚胺按照质量比12-25∶7∶1的比例混合均匀后，再加热至四丁基氟化铵完全熔化后，搅拌均匀制得。
所述抗紫外线防色变剂是将聚氧乙烯硬脂酸酯和聚己内酰胺粉加入至球磨机中，球磨处理50-70min后制得。
所述天然抗菌剂为纳米氧化锌、纳米二氧化钛和纳米二氧化硅中的一种或多种。
所述步骤(1)中挤出机的温度控制在160-190℃，真空负压达0.6MPa以上。
实施例1一种高密高强度塑料牛奶瓶的生产工艺，包括以下步骤：
(1)将高密度聚乙烯60kg、丙烯基弹性体15kg、聚苯硫醚20kg、二氧化钛11kg、天然抗菌剂2kg、抗紫外线防色变剂2kg加入到挤出机中，经加热熔融塑化挤出熔融型坯；
(2)将熔融型坯放入牛奶瓶的注塑模具中吹胀成型，吹瓶的动作包括：合模→封口→放杆→吹气→排气→启口→升杆→开模；
(3)对吹胀成型后的牛奶瓶进行冷却定型；
(4)将冷却定型后的牛奶瓶从注塑模具中拿出并检查是否合格，合格的修除废边，不合格的剔除；
(5)将修除废边后的合格牛奶瓶进行水洗印染图案；
(6)将进行水洗印染图案后的牛奶瓶包装入库。
所述二氧化钛是由钛白粉、四丁基氟化铵和高密度聚乙烯亚胺按照质量比15∶7∶1的比例混合均匀后，再加热至四丁基氟化铵完全熔化后，搅拌均匀制得。
所述抗紫外线防色变剂是将聚氧乙烯硬脂酸酯和聚己内酰胺粉加入至球磨机中，球磨处理50min后制得。
所述天然抗菌剂为纳米氧化锌、纳米二氧化钛和纳米二氧化硅中的一种或多种。
所述步骤(1)中挤出机的温度控制在160℃，真空负压达0.6MPa以上。
实施例2一种高密高强度塑料牛奶瓶的生产工艺，包括以下步骤：
(1)将高密度聚乙烯80kg、丙烯基弹性体20kg、聚苯硫醚30kg、二氧化钛16kg、天然抗菌剂10kg、抗紫外线防色变剂6kg加入到挤出机中，经加热熔融塑化挤出熔融型坯；
(2)将熔融型坯放入牛奶瓶的注塑模具中吹胀成型，吹瓶的动作包括：合模→封口→放杆→吹气→排气→启口→升杆→开模；
(3)对吹胀成型后的牛奶瓶进行冷却定型；
(4)将冷却定型后的牛奶瓶从注塑模具中拿出并检查是否合格，合格的修除废边，不合格的剔除；
(5)将修除废边后的合格牛奶瓶进行水洗印染图案；
(6)将进行水洗印染图案后的牛奶瓶包装入库。
所述二氧化钛是由钛白粉、四丁基氟化铵和高密度聚乙烯亚胺按照质量比20∶7∶1的比例混合均匀后，再加热至四丁基氟化铵完全熔化后，搅拌均匀制得。
所述抗紫外线防色变剂是将聚氧乙烯硬脂酸酯和聚己内酰胺粉加入至球磨机中，球磨处理70min后制得。
所述天然抗菌剂为纳米氧化锌、纳米二氧化钛和纳米二氧化硅中的一种或多种。
所述步骤(1)中挤出机的温度控制在190℃，真空负压达0.6MPa以上。
实施例3一种高密高强度塑料牛奶瓶的生产工艺，包括以下步骤：
(1)将高密度聚乙烯70kg、丙烯基弹性体18kg、聚苯硫醚25kg、二氧化钛13kg、天然抗菌剂6kg、抗紫外线防色变剂4kg加入到挤出机中，经加热熔融塑化挤出熔融型坯；
(2)将熔融型坯放入牛奶瓶的注塑模具中吹胀成型，吹瓶的动作包括：合模→封口→放杆→吹气→排气→启口→升杆→开模；
(3)对吹胀成型后的牛奶瓶进行冷却定型；
(4)将冷却定型后的牛奶瓶从注塑模具中拿出并检查是否合格，合格的修除废边，不合格的剔除；
(5)将修除废边后的合格牛奶瓶进行水洗印染图案；
(6)将进行水洗印染图案后的牛奶瓶包装入库。
所述二氧化钛是由钛白粉、四丁基氟化铵和高密度聚乙烯亚胺按照质量比17∶7∶1的比例混合均匀后，再加热至四丁基氟化铵完全熔化后，搅拌均匀制得。
所述抗紫外线防色变剂是将聚氧乙烯硬脂酸酯和聚己内酰胺粉加入至球磨机中，球磨处理60min后制得。
所述天然抗菌剂为纳米氧化锌、纳米二氧化钛和纳米二氧化硅中的一种或多种。
所述步骤(1)中挤出机的温度控制在175℃，真空负压达0.6MPa以上。
上面实施例对本发明进行了详细描述，显然本发明具体实现并不受上述方式的限制，只要采用了本发明的方法构思和技术方案进行的各种改进，或未经改进直接应用于其它场合的，均在本发明的保护范围之内。
Claims (5)
1.一种高密高强度塑料牛奶瓶的生产工艺，其特征在于，包括以下步骤：
(1)按质量计，将高密度聚乙烯50-85份、丙烯基弹性体12-25份、聚苯硫醚18-32份、二氧化钛10-15份、天然抗菌剂1-12份、抗紫外线防色变剂1-5份加入到挤出机中，经加热熔融塑化挤出熔融型坯；
(2)将熔融型坯放入牛奶瓶的注塑模具中吹胀成型，吹瓶的动作包括：合模→封口→放杆→吹气→排气→启口→升杆→开模；
(3)对吹胀成型后的牛奶瓶进行冷却定型；
(4)将冷却定型后的牛奶瓶从注塑模具中拿出并检查是否合格，合格的修除废边，不合格的剔除；
(5)将修除废边后的合格牛奶瓶进行水洗印染图案；
(6)将进行水洗印染图案后的牛奶瓶包装入库。
2.根据权利要求1所述的一种高密高强度塑料牛奶瓶的生产工艺，其特征在于，所述二氧化钛是由钛白粉、四丁基氟化铵和高密度聚乙烯亚胺按照质量比12-25∶7∶1的比例混合均匀后，再加热至四丁基氟化铵完全熔化后，搅拌均匀制得。
3.根据权利要求1所述的一种高密高强度塑料牛奶瓶的生产工艺，其特征在于，所述抗紫外线防色变剂是将聚氧乙烯硬脂酸酯和聚己内酰胺粉加入至球磨机中，球磨处理50-70min后制得。
4.根据权利要求1所述的一种高密高强度塑料牛奶瓶的生产工艺，其特征在于，所述天然抗菌剂为纳米氧化锌、纳米二氧化钛和纳米二氧化硅中的一种或多种。
5.根据权利要求1所述的一种高密高强度塑料牛奶瓶的生产工艺，其特征在于，所述步骤(1)中挤出机的温度控制在160-190℃，真空负压达0.6MPa以上。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115635670A (zh) * | 2022-11-18 | 2023-01-24 | 张家港众辉医用塑料科技有限公司 | 用于医疗密封瓶的注吹成型工艺 |
| CN116913435A (zh) * | 2023-07-27 | 2023-10-20 | 常州威材新材料科技有限公司 | 一种基于成分分析的高强度工程塑料评估方法及系统 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115635670A (zh) * | 2022-11-18 | 2023-01-24 | 张家港众辉医用塑料科技有限公司 | 用于医疗密封瓶的注吹成型工艺 |
| CN116913435A (zh) * | 2023-07-27 | 2023-10-20 | 常州威材新材料科技有限公司 | 一种基于成分分析的高强度工程塑料评估方法及系统 |
| CN116913435B (zh) * | 2023-07-27 | 2024-01-26 | 常州威材新材料科技有限公司 | 一种基于成分分析的高强度工程塑料评估方法及系统 |
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