CN110700011A - 一种具有防水功能的包装用纸及其加工工艺 - Google Patents

一种具有防水功能的包装用纸及其加工工艺 Download PDF

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CN110700011A
CN110700011A CN201910868411.5A CN201910868411A CN110700011A CN 110700011 A CN110700011 A CN 110700011A CN 201910868411 A CN201910868411 A CN 201910868411A CN 110700011 A CN110700011 A CN 110700011A
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马加和
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Taihu Jiaying Special Paper Co Ltd
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    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents
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    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
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    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
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Abstract

本发明公开了一种具有防水功能的包装用纸，包含以下组分含量：木质原浆82‑93份，改性淀粉4‑7份，纳米级玻璃纤维3‑5份，增强剂2‑3.5份，纸板抗水剂1.2‑2.8份，银离子抑菌剂0.8‑1.5份，聚氯乙烯2‑4份，可食性魔芋葡苷聚糖0.9‑2.1份，壳聚糖1‑2份。其加工工艺包括：将木质原浆放入高频振筛框内去除杂质，将改性淀粉、纳米级玻璃纤维、增强剂、纸板抗水剂和银离子抑菌剂，依次加入高速搅拌机内的木质原浆中，将后的配制浆料送入制纸机内得到原纸；将聚氯乙烯原浆制备成聚氯乙烯薄膜，利用真空镀膜机在原纸一端面进行镀膜；将可食性魔芋葡苷聚糖和壳聚糖制备可食性抑菌膜液，通过喷涂机在原纸上均匀喷涂，到所述的具有防水功能的包装用纸。

Description

一种具有防水功能的包装用纸及其加工工艺
技术领域
本发明涉及包装用纸加工技术领域，具体为一种具有防水功能的包装用纸及其加工工艺。
背景技术
纸就是从悬浮液中将植物等纤维、矿物纤维、动物纤维、化学纤维或这些前卫的混合五沉积到适当的(专门)成型的设备上，经过干燥制成的平整、均匀的薄叶片状物。包装纸，指用于包装的纸；强度高、含水率低、透气性小、无腐蚀作用、具有一定的抗水性使用起来还很美观；用于食品包装的纸还要求卫生、无菌、无污染杂质等。包装用纸有牛皮纸、鸡皮纸、纸袋纸、羊皮纸、玻璃纸、柏油纸、防潮纸、火药包装纸、中性包装纸、半透明纸、防锈纸、防油纸、食品包装纸、石蜡纸、茶叶袋纸、红电光炮纸、真空镀铝纸、复合纸等。
其中冷冻食品包装纸在冷冻食品包装中用作内衬的一类高度耐潮湿、耐水蒸气的包装纸。纸质柔软。较高的抗张强度，具有在低温下快速冷冻和储存食品时防止破裂的性能、抗液体和蒸汽渗透性能。目前市面上的冷冻食品包装纸可用由漂白化学木浆抄造的、经特殊处理的半透明纸，也可用蜡纸、涂布纸或上蜡植物羊皮纸；但是此类包装用纸防水性能有限，冷冻食品解冻后容易渗水，无法达到高效的防水性能。
发明内容
本发明的目的在于提供一种具有防水功能的包装用纸及其加工工艺，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：一种具有防水功能的包装用纸，包含以下组分含量：木质原浆82-93份，改性淀粉4-7份，纳米级玻璃纤维3-5份，增强剂2-3.5份，纸板抗水剂1.2-2.8份，银离子抑菌剂0.8-1.5份，聚氯乙烯2-4份，可食性魔芋葡苷聚糖0.9-2.1份，壳聚糖1-2份。
优选的，包含以下组分含量：木质原浆84份，改性淀粉4份，纳米级玻璃纤维3份，增强剂2份，纸板抗水剂1.5份，银离子抑菌剂1份，聚氯乙烯2份，可食性魔芋葡苷聚糖1.5份，壳聚糖1份。
优选的，所述聚氯乙烯为添加了增稠剂的软聚氯乙烯浆料。
本发明还提供一种具有防水功能的包装用纸加工工艺，包括以下操作步骤：
S1：原浆处理：按量秤取适量的木质原浆，将木质原浆放入高频振筛框内去除杂质，经过离心筛选后调整原浆的pH至6.5-6.91，然后将处理后的木质原浆放入高速搅拌机内；
S2：原纸加工：按量秤取适量的改性淀粉、纳米级玻璃纤维和增强剂，依次加入高速搅拌机内的木质原浆中，混合搅拌15-20min后，将木质原浆升温至45-55℃，然后依次加入纸板抗水剂和银离子抑菌剂，继续搅拌15-20min后冷却，将冷却后的配制浆料送入制纸机内进行抄纸，最后脱色、压榨、干燥后得到原纸；
S3：聚氯乙烯镀膜：将适量的聚氯乙烯原浆放入密炼机中塑化，然后放入造粒机中进行造粒，得到聚氯乙烯母粒；将聚氯乙烯母粒放入压延机中挤压成膜，得到聚氯乙烯薄膜；将聚氯乙烯薄膜放入真空镀膜机中，利用真空镀膜机在原纸一端面进行镀膜；
S4：可食性抑菌镀膜：按量秤取适量的可食性魔芋葡苷聚糖和壳聚糖，加入浓度为0.2-0.4％的酸水溶液中，在50-65℃下水浴加热20-25min，加热过程中充分搅拌，得到可食性抑菌膜液，将可食性抑菌膜液放入喷涂机内，在原纸的另一端面进行均匀喷涂，形成可食性抑菌镀膜，晾干后即可得到所述的具有防水功能的包装用纸。
优选的，S3)中所述聚氯乙烯镀膜的厚度为0.06-0.08mm。
优选的，S3)中在聚氯乙烯原浆中加入阻燃剂后再放入密炼机中塑化。
与现有技术相比，本发明的有益效果是：本发明采用天然的木质原浆作为原材料，保证了食品包装用纸的安全性能，同时加入适量的纸板抗水剂提高其抗水性能；还加入了改性淀粉和纳米级玻璃纤维提高包装用纸的强度；通过在包装用纸外层镀上聚氯乙烯镀膜，提高包装用纸的整体防水性能；同时增加了银离子抑菌剂和可食性抑菌镀层，使得包装用纸具有更好的抗菌性能，适合长期保持冷冻食品。
具体实施方式
下面对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1：一种具有防水功能的包装用纸，包含以下组分含量：木质原浆82-93份，改性淀粉4-7份，纳米级玻璃纤维3-5份，增强剂2-3.5份，纸板抗水剂1.2-2.8份，银离子抑菌剂0.8-1.5份，聚氯乙烯2-4份，可食性魔芋葡苷聚糖0.9-2.1份，壳聚糖1-2份。
进一步的，包含以下组分含量：木质原浆84份，改性淀粉4份，纳米级玻璃纤维3份，增强剂2份，纸板抗水剂1.5份，银离子抑菌剂1份，聚氯乙烯2份，可食性魔芋葡苷聚糖1.5份，壳聚糖1份。
进一步的，所述聚氯乙烯为添加了增稠剂的软聚氯乙烯浆料。
本发明还提供一种具有防水功能的包装用纸加工工艺，包括以下操作步骤：
S1：原浆处理：按量秤取适量的木质原浆，将木质原浆放入高频振筛框内去除杂质，经过离心筛选后调整原浆的pH至6.5-6.91，然后将处理后的木质原浆放入高速搅拌机内；
S2：原纸加工：按量秤取适量的改性淀粉、纳米级玻璃纤维和增强剂，依次加入高速搅拌机内的木质原浆中，混合搅拌15-20min后，将木质原浆升温至45-55℃，然后依次加入纸板抗水剂和银离子抑菌剂，继续搅拌15-20min后冷却，将冷却后的配制浆料送入制纸机内进行抄纸，最后脱色、压榨、干燥后得到原纸；
S3：聚氯乙烯镀膜：将适量的聚氯乙烯原浆放入密炼机中塑化，然后放入造粒机中进行造粒，得到聚氯乙烯母粒；将聚氯乙烯母粒放入压延机中挤压成膜，得到聚氯乙烯薄膜；将聚氯乙烯薄膜放入真空镀膜机中，利用真空镀膜机在原纸一端面进行镀膜；
S4：可食性抑菌镀膜：按量秤取适量的可食性魔芋葡苷聚糖和壳聚糖，加入浓度为0.2-0.4％的酸水溶液中，在50-65℃下水浴加热20-25min，加热过程中充分搅拌，得到可食性抑菌膜液，将可食性抑菌膜液放入喷涂机内，在原纸的另一端面进行均匀喷涂，形成可食性抑菌镀膜，晾干后即可得到所述的具有防水功能的包装用纸。
进一步的，S3)中所述聚氯乙烯镀膜的厚度为0.06-0.08mm。
进一步的，S3)中在聚氯乙烯原浆中加入阻燃剂后再放入密炼机中塑化。
实施例2：一种具有防水功能的包装用纸，包含以下组分含量：木质原浆82-93份，改性淀粉4-7份，纳米级玻璃纤维3-5份，增强剂2-3.5份，纸板抗水剂1.2-2.8份，银离子抑菌剂0.8-1.5份，聚氯乙烯2-4份，可食性魔芋葡苷聚糖0.9-2.1份，壳聚糖1-2份。
进一步的，包含以下组分含量：木质原浆82份，改性淀粉4份，纳米级玻璃纤维3份，增强剂2份，纸板抗水剂2份，银离子抑菌剂1.5份，聚氯乙烯2份，可食性魔芋葡苷聚糖2份，壳聚糖2份。
实施例2与上述实施例材料、加工步骤相同，不同之处在于两者的配比不同。
实施例3：一种具有防水功能的包装用纸，包含以下组分含量：木质原浆82-93份，改性淀粉4-7份，纳米级玻璃纤维3-5份，增强剂2-3.5份，纸板抗水剂1.2-2.8份，银离子抑菌剂0.8-1.5份，聚氯乙烯2-4份，可食性魔芋葡苷聚糖0.9-2.1份，壳聚糖1-2份。
进一步的，包含以下组分含量：木质原浆82.8份，改性淀粉4份，纳米级玻璃纤维3份，增强剂2份，纸板抗水剂1.2份，银离子抑菌剂1份，聚氯乙烯2份，可食性魔芋葡苷聚糖2份，壳聚糖2份。
实施例3与上述实施例材料、加工步骤相同，不同之处在于两者的配比不同。
按实施例1-3中所述配比与制备方法所制得的具有防水功能的包装用纸，对其防水性、强度和抑菌性等方面进行测试，结果通过A、B、C、D进行评定，如下表所示：
实施例 防水性 强度 抑菌性
实施例1 A C A
实施例2 A A A
实施例3 B B A
由表中可以看出，按照实施例1中所述配比与制备方法所制得的具有防水功能的包装用纸，在其防水性和抑菌性方面效果较好；按照实施例2中所述配比与制备方法所制得的具有防水功能的包装用纸，在其防水性、强度和抑菌性方面效果较好；按照实施例3中所述配比与制备方法所制得的具有防水功能的包装用纸，在其抑菌性方面效果较好。
本发明采用天然的木质原浆作为原材料，保证了食品包装用纸的安全性能，同时加入适量的纸板抗水剂提高其抗水性能；还加入了改性淀粉和纳米级玻璃纤维提高包装用纸的强度；通过在包装用纸外层镀上聚氯乙烯镀膜，提高包装用纸的整体防水性能；同时增加了银离子抑菌剂和可食性抑菌镀层，使得包装用纸具有更好的抗菌性能，适合长期保持冷冻食品
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (6)

1.一种具有防水功能的包装用纸，其特征在于：包含以下组分含量：木质原浆82-93份，改性淀粉4-7份，纳米级玻璃纤维3-5份，增强剂2-3.5份，纸板抗水剂1.2-2.8份，银离子抑菌剂0.8-1.5份，聚氯乙烯2-4份，可食性魔芋葡苷聚糖0.9-2.1份，壳聚糖1-2份。
2.根据权利要求1所述的一种具有防水功能的包装用纸，其特征在于：包含以下组分含量：木质原浆84份，改性淀粉4份，纳米级玻璃纤维3份，增强剂2份，纸板抗水剂1.5份，银离子抑菌剂1份，聚氯乙烯2份，可食性魔芋葡苷聚糖1.5份，壳聚糖1份。
3.根据权利要求1所述的一种具有防水功能的包装用纸，其特征在于：所述聚氯乙烯为添加了增稠剂的软聚氯乙烯浆料。
4.一种具有防水功能的包装用纸加工工艺，其特征在于：包括以下操作步骤：
S1：原浆处理：按量秤取适量的木质原浆，将木质原浆放入高频振筛框内去除杂质，经过离心筛选后调整原浆的pH至6.5-6.91，然后将处理后的木质原浆放入高速搅拌机内；
S2：原纸加工：按量秤取适量的改性淀粉、纳米级玻璃纤维和增强剂，依次加入高速搅拌机内的木质原浆中，混合搅拌15-20min后，将木质原浆升温至45-55℃，然后依次加入纸板抗水剂和银离子抑菌剂，继续搅拌15-20min后冷却，将冷却后的配制浆料送入制纸机内进行抄纸，最后脱色、压榨、干燥后得到原纸；
S3：聚氯乙烯镀膜：将适量的聚氯乙烯原浆放入密炼机中塑化，然后放入造粒机中进行造粒，得到聚氯乙烯母粒；将聚氯乙烯母粒放入压延机中挤压成膜，得到聚氯乙烯薄膜；将聚氯乙烯薄膜放入真空镀膜机中，利用真空镀膜机在原纸一端面进行镀膜；
S4：可食性抑菌镀膜：按量秤取适量的可食性魔芋葡苷聚糖和壳聚糖，加入浓度为0.2-0.4％的酸水溶液中，在50-65℃下水浴加热20-25min，加热过程中充分搅拌，得到可食性抑菌膜液，将可食性抑菌膜液放入喷涂机内，在原纸的另一端面进行均匀喷涂，形成可食性抑菌镀膜，晾干后即可得到所述的具有防水功能的包装用纸。
5.根据权利要求4所述的一种具有防水功能的包装用纸加工工艺，其特征在于：S3)中所述聚氯乙烯镀膜的厚度为0.06-0.08mm。
6.根据权利要求4所述的一种具有防水功能的包装用纸加工工艺，其特征在于：S3)中在聚氯乙烯原浆中加入阻燃剂后再放入密炼机中塑化。
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CN113136738A (zh) * 2021-03-25 2021-07-20 上海福铮纸业有限公司 一种瓦楞纸板及其制备方法
CN116676812A (zh) * 2023-06-01 2023-09-01 华邦古楼新材料有限公司 一种无氯增强食品包装纸

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CN113136738A (zh) * 2021-03-25 2021-07-20 上海福铮纸业有限公司 一种瓦楞纸板及其制备方法
CN116676812A (zh) * 2023-06-01 2023-09-01 华邦古楼新材料有限公司 一种无氯增强食品包装纸
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