CN109235144B - 一种纸杯及其制备工艺 - Google Patents

一种纸杯及其制备工艺 Download PDF

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CN109235144B
CN109235144B CN201810872167.5A CN201810872167A CN109235144B CN 109235144 B CN109235144 B CN 109235144B CN 201810872167 A CN201810872167 A CN 201810872167A CN 109235144 B CN109235144 B CN 109235144B
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王恬
刘丞
张智力
周加彦
高翠玲
熊大伟
刘春宏
韩冰
谭晓峰
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Shandong Institute for Product Quality Inspection
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Abstract

本发明属于生活用品技术领域，具体涉及一种新型纸杯及其制备工艺。该纸杯是由外层BOPP塑料膜，白卡纸以及内层PE淋膜制成。本发明通过多层复合工艺，能够避免内层沾染印刷涂料等，更加安全卫生，同时，杯体内无纸张味，挺度保持性好；本发明提供的淋膜强度高，粘性好，避免了使用时露出纸纤维毛刺等现象，防潮性好，强度高，密封性好，环保卫生，且用量少，可以实现重复利用；本发明提供的纸杯，安全卫生，能够提高酸奶等盛放的食品的贮存期。

Description

一种纸杯及其制备工艺
技术领域
本发明属于生活用品技术领域，具体涉及一种纸杯及其制备工艺。
背景技术
淋膜纸杯是现在使用非常普遍的产品，是一种纸塑复合结构，外面是一层纸，里面是一层聚乙烯塑料淋膜即接触食品的一面。淋膜纸杯的生产工艺是利用淋膜机将聚乙烯淋膜在原纸上，经过印刷机对纸板进行印刷。杯身用片材在模切机上切出，杯底用的是卷材，由制杯机冲切系统冲切，杯底的材质也是聚乙烯，杯身的接合和杯身与杯底的接合通过热压过程，将聚乙烯涂层热熔来完成，卷边模具将杯体和杯底结合的缘口部分翻卷并压紧，形成不透水、不透气的密封底部，最后将杯口翻边形成弧形口缘，成型后对产品进行包装。
淋膜纸杯具有物理力学性能均衡、耐寒性好、抗水、防潮、有一定的阻隔性、耐油性、优良的成型性能和很好的热封合性能等优点。现有技术中，该种纸杯存在以下问题：第一，印刷是直接印刷到原纸上，最外层没有涂层，产品包装的方式又是采用套杯，由于杯体之间接触紧密，在运输过程中难免会产生摩擦，就会在内壁上出现印刷色彩的脱落，附着在聚乙烯淋膜层上；第二，消费者使用时，开启封口膜会产生很多的纸纤维毛刺。这是因为杯体内层的聚乙烯淋膜厚度较薄，撕开时很容易被破坏，进而露出纸纤维，使用时纸纤维有可能会进入人体，存在一定的安全隐患。
发明内容
针对现有技术存在的问题，本发明提供了一种纸杯。
本发明还提供了一种纸杯的制备工艺。
本发明为了实现上述目的所采用的技术方案为：
本发明提供了一种纸杯，该纸杯是由外层BOPP塑料膜，白卡纸以及内层PE淋膜制成。
本发明所使用的PE淋膜是由以下重量份原料组成：聚乙烯80-90份、碳酸钙2-5份、贻贝粉2-3份、葡萄糖酸钙0.5-0.8份、聚赖氨酸0.1份。
进一步的，所述贻贝粉通过以下方法制备而成：将新鲜的贻贝加入聚乙二醇，打浆，然后加入琥珀酸、肉豆蔻粉，搅拌均匀后静置20min，然后进行冷冻干燥，粉碎后过100目筛即可。
进一步的，所述聚乙二醇的加入量占贻贝重量的2-3%。
进一步的，所述琥珀酸的加入量占贻贝重量的0.3-0.5%；所述肉豆蔻粉的加入量占贻贝重量的1-1.5%。
本发明还提供了一种纸杯的制备方法，包括以下步骤：
（1）将PE淋膜按照配方采用高速搅拌机混合均匀后，软化，形成淋膜料；
（2）将淋膜料淋在白卡纸上，形成淋膜纸；
（3）将BOPP塑料膜及淋膜纸经干法复合而成。
进一步的，所述淋膜料在白卡纸上的厚度为80-100μm。
本发明的有益效果为：
（1）本发明通过多层复合工艺，能够避免内层沾染印刷涂料等，更加安全卫生，同时，杯体内无纸张味，挺度保持性好；
（2）本发明提供的淋膜强度高，粘性好，避免了使用时露出纸纤维毛刺等现象，防潮性好，强度高，密封性好，环保卫生，且用量少，可以实现重复利用；
（3）本发明提供的纸杯，安全卫生，能够提高酸奶等盛放的食品的贮存期。
附图说明
图1为对比例3制备的纸杯出现的霉斑。
具体实施方式
下面以具体的实施例对本发明的技术方案作进一步的解释和说明。
实施例1
一种纸杯，该纸杯是由外层BOPP塑料膜，白卡纸以及内层PE淋膜制成。
所述PE淋膜是由以下重量份原料组成：聚乙烯80份、碳酸钙5份、贻贝粉2份、葡萄糖酸钙0.5份、聚赖氨酸0.1份。
所述贻贝粉通过以下方法制备而成：将新鲜的贻贝加入占贻贝重量3%的聚乙二醇，打浆，然后加入占贻贝重量的0.3%的琥珀酸、占贻贝重量的1.5%的肉豆蔻粉，搅拌均匀后静置20min，然后进行冷冻干燥，粉碎后过100目筛即可；
制备方法如下：
（1）将PE淋膜按照配方采用高速搅拌机混合均匀后，软化，形成淋膜料；
（2）将淋膜料淋在白卡纸上，形成淋膜厚度为80-100μm的淋膜纸；
3）将BOPP塑料膜及淋膜纸经干法复合而成。
实施例2
一种纸杯，该纸杯是由外层BOPP塑料膜，白卡纸以及内层PE淋膜制成。
所述PE淋膜是由以下重量份原料组成：聚乙烯85份、碳酸钙3.5份、贻贝粉3份、葡萄糖酸钙0.65份、聚赖氨酸0.1份。
所述贻贝粉通过以下方法制备而成：将新鲜的贻贝加入占贻贝重量2%的聚乙二醇，打浆，然后加入占贻贝重量的0.5%的琥珀酸、占贻贝重量的1.2%的肉豆蔻粉，搅拌均匀后静置20min，然后进行冷冻干燥，粉碎后过100目筛即可；
制备方法同实施例1。
实施例3
一种纸杯，该纸杯是由外层BOPP塑料膜，白卡纸以及内层PE淋膜制成。
所述PE淋膜是由以下重量份原料组成：聚乙烯90份、碳酸钙5份、贻贝粉3份、葡萄糖酸钙0.8份、聚赖氨酸0.1份。
所述贻贝粉通过以下方法制备而成：将新鲜的贻贝加入占贻贝重量3%的聚乙二醇，打浆，然后加入占贻贝重量的0.4%的琥珀酸、占贻贝重量的1%的肉豆蔻粉，搅拌均匀后静置20min，然后进行冷冻干燥，粉碎后过100目筛即可；
制备方法同实施例1。
对比例1
一种纸杯，该纸杯是由外层BOPP塑料膜，白卡纸以及内层PE淋膜制成。
所述PE淋膜是由以下重量份原料组成：聚乙烯80份、碳酸钙5份、葡萄糖酸钙0.5份、聚赖氨酸0.1份。
制备方法同实施例1。
对比例2
一种纸杯，该纸杯是由外层BOPP塑料膜，白卡纸以及内层PE淋膜制成。
所述PE淋膜是由以下重量份原料组成：聚乙烯80份、碳酸钙5份、贻贝粉2份、葡萄糖酸钙0.5份；
贻贝粉的制备方法同实施例1。
制备的制备方法同实施例1。
对比例3
一种纸杯，该纸杯是由外层BOPP塑料膜，白卡纸以及内层PE淋膜制成。
所述PE淋膜配方同实施例1。
所述贻贝粉通过以下方法制备而成：将新鲜的贻贝加入占贻贝重量3%的聚乙二醇，打浆，搅拌均匀后静置20min，然后进行冷冻干燥，粉碎后过100目筛即可。
制备的制备方法同实施例1。
对比例4
一种纸杯，该纸杯是由外层BOPP塑料膜，白卡纸以及内层PE淋膜制成。
所述PE淋膜组成同实施例1。
所述贻贝粉通过以下方法制备而成：将新鲜的贻贝加入占贻贝重量3%的聚乙二醇，打浆，然后加入占贻贝重量的1.5%的肉豆蔻粉，搅拌均匀后静置20min，然后进行冷冻干燥，粉碎后过100目筛即可。
效果实施例
（一）将实施例1-3及对比例1-4制备的制备的PE淋膜进行拉伸强度、粘合强度进行检测，具体结果见表1。
表1
Figure 552548DEST_PATH_IMAGE001
（二）将实施例1-3及对比例1-2制备的纸杯进行蒸发残渣（4%乙酸以及正己烷）的检测，随机抽取批次内的纸杯，统计平均值，具体结果见表2。
表2
Figure 141792DEST_PATH_IMAGE002
（三）将实施例1及对比例2-4制备的制备同时储存鲜牛奶，储存温度及时间相同，储存7d后，进行菌落总数以及霉菌，菌落总数的测定：GB4789.2-2010；霉菌的测定：GB4789.15-2010；具体结果见表3。
表3
Figure 124791DEST_PATH_IMAGE003
同时对实施例2和3进行相同的检测，均未检出菌落总数及霉菌。同时，对比例中制备出现霉菌，如图1所示。
（四）将实施例1-3及对比例1-4制备的制备进行兼容性检测，兼容性：将纸杯中装入等量的100℃水或食用油、食醋不同液体，测试纸杯的破漏时间，具体结果见表4。
表4
Figure 192105DEST_PATH_IMAGE004
（五）将实施例1-3及对比例1-4制备的纸杯进行加热试验，同时，应用于酸奶包装，然后进行使用，观察纸杯的情况，具体结果见表5。
表5
Figure 475318DEST_PATH_IMAGE005

Claims (3)

1.一种纸杯，其特征在于，该纸杯是由外层BOPP塑料膜，白卡纸以及内层PE淋膜制成；所述PE淋膜是由以下重量份原料组成：聚乙烯80-90份、碳酸钙2-5份、贻贝粉2-3份、葡萄糖酸钙0.5-0.8份、聚赖氨酸0.1份；所述贻贝粉通过以下方法制备而成：将新鲜的贻贝加入聚乙二醇，打浆，然后加入琥珀酸、肉豆蔻粉，搅拌均匀后静置20min，然后进行冷冻干燥，粉碎后过100目筛即可；所述聚乙二醇的加入量占贻贝重量的2-3%；所述琥珀酸的加入量占贻贝重量的0.3-0.5%；所述肉豆蔻粉的加入量占贻贝重量的1-1.5%。
2.一种如权利要求1所述的纸杯的制备方法，其特征在于，包括以下步骤：
（1）将PE淋膜按照配方采用高速搅拌机混合均匀后，软化，形成淋膜料；
（2）将淋膜料淋在白卡纸上，形成淋膜纸；
（3）将BOPP塑料膜及淋膜纸经干法复合而成。
3.根据权利要求2所述的制备方法，其特征在于，所述淋膜料在白卡纸上的厚度为80-100μm。
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