CN109403056A - 阻燃型医用无纺布的制备方法 - Google Patents

阻燃型医用无纺布的制备方法 Download PDF

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CN109403056A
CN109403056A CN201811320528.1A CN201811320528A CN109403056A CN 109403056 A CN109403056 A CN 109403056A CN 201811320528 A CN201811320528 A CN 201811320528A CN 109403056 A CN109403056 A CN 109403056A
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李涛
程文斌
朱扬
刘先银
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Tongcheng Hongjiang Packaging Co Ltd
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Abstract

本发明公开一种阻燃型墙布用无纺布的制备方法，包括以下步骤：S1：将细纤维聚合物的混合物由吸料机吸取引导至加热机加热，加热温度为260～280℃，得到熔融状态的聚合物A；S2：将聚合物A通过挤压机以4.8～5.3MPa加压喷丝，将喷丝经过拉伸器拉伸，形成纤维拉丝物B，并引导至浸泡液中进行浸泡6～8h，然后引导至成网机上；S3：当成网机上层叠三层或四层的纤维拉丝物B时，引导层叠物至热轧机中热轧，热轧时纤维拉丝物表面均匀喷洒树脂粉和氢氧化铝阻燃颗粒粉，热轧条件为160～180℃、4MPa，得到无纺布，卷绕成型。在保证强韧的基础上，具备阻燃能力，特别适合医院使用。

Description

阻燃型医用无纺布的制备方法
技术领域
本发明涉及无纺布制备领域，具体涉及一种阻燃型医用无纺布的制备方法。
背景技术
无纺布是一种非织造布，它是直接利用高聚物切片、短纤维或长丝将纤维通过气流或机械成网，然后经过水刺，针刺，或热轧加固，最后经过后整理形成的无编织的布料。具有柔软、透气和平面结构的新型纤维制品，优点是不产生纤维屑，强韧、耐用、丝般柔软，也是增强材料的一种，而且还有棉质的感觉，和棉织品相比，无纺布的袋子容易成形，而且造价便宜。
无纺布被广泛应用在医学领域，目前医院用的无纺布制品涵盖了各个方面，如工作服、一次性用具等，医院属于人口的聚集地，这就要求在使用的材料方面具有较好的阻燃性，而目前医用的无纺布阻燃效果不是很好。
发明内容
为了解决上述问题，本发明提供一种阻燃型医用无纺布的制备方法，在保证强韧的基础上，具备阻燃能力，特别适合医院使用。
为了实现上述目的，本发明采用以下技术方案：一种阻燃型医用无纺布的制备方法，包括以下步骤：
S1：将细纤维聚合物的混合物由吸料机吸取引导至加热机加热，加热温度为260～280℃，得到熔融状态的聚合物A；
S2：将聚合物A通过挤压机以4.8～5.3MPa加压喷丝，将喷丝经过拉伸器拉伸，形成纤维拉丝物B，并引导至浸泡液中进行浸泡6～8h，然后引导至成网机上；
S3：当成网机上层叠三层或四层的纤维拉丝物B时，引导层叠物至热轧机中热轧，热轧时纤维拉丝物表面均匀喷洒树脂粉和氢氧化铝阻燃颗粒粉，热轧条件为160～180℃、4MPa，得到无纺布，卷绕成型。
通过将纤维高温熔融喷丝形成拉丝物，初步成型并杀菌，然后进入浸泡液中浸泡，同时通过添加树脂粉和氢氧化铝自然颗粒，使其增强韧性的同时具有良好的阻燃能力，进一步增强无纺布的韧性和强度，使其不易断裂，所述的树脂粉可以是热固性树脂的一种。
进一步的，所述的步骤S3中喷洒树脂粉后经过红外线辐射2～3次进入热轧。经过紫外线辐射后，起到更好的杀菌和融合作用，提高无纺布的阻燃效果。
进一步的，所述的浸泡液组份如下：艾蒿提取物30～40份、丙烯酸酯20～40份、磷酸三酯0.4～0.6份、乙二醇30～40份。通过浸泡液的浸泡作用，使得无纺布在无菌的同时具有阻燃功效，且持续时间久，对人体无伤害，符合环保健康的要求。
更进一步的，所述的细纤维聚合物包括低熔点化学纤维、木匠纤维和木浆，低熔点化学纤维：木浆纤维：木匠＝5:3:1。在此比例下制备出的无纺布的韧性好，强度高，不易开裂，且易上色，可根据实际需求染成不同的颜色。
进一步的，所述的成网机为气流成网机，气流成网机的成网定量为100g/m2～120g/m2。此成网密度在保证使用功能的同时，有利于图案的印制，太疏或太密均会影响印制效果。
本发明带来的有益效果为：1)本发明通过将纤维高温熔融喷丝形成拉丝物，初步成型并杀菌，然后进入浸泡液中浸泡，进一步提高阻燃能力，同时通过均匀喷洒添加树脂粉和氢氧化铝阻燃粉，进一步增强无纺布的韧性和阻燃性，使其不易断裂；
2)加入中药浸泡液，在提高了阻燃能力的同时使其具有一定的杀菌能力，且符合环保健康的要求，对人体无伤害，特别适合医院使用。
具体实施方式
下面结合具体实施例对本发明进行详细说明。
实施例1
S1：所细纤维聚合物包括低熔点化学纤维、木匠纤维和木浆，低熔点化学纤维：木浆纤维：木匠＝5:3:1，将细纤维聚合物由大螺杆高温熔融挤出，加热温度为260℃，得到熔融状态的聚合物A；
S2：将聚合物A通过挤压机以4.8MPa加压喷丝，将喷丝经过拉伸器拉伸，形成纤维拉丝物B，并引导至浸泡液中进行浸泡6h，然后引导至气流成网机上，所述的浸泡液组份如下：云母粉10份、艾蒿提取物30份、纳米银20份、丙烯酸酯20份、磷酸三酯0.4份、乙二醇30份；
S3：当成网机上层叠三层的纤维拉丝物B时，引导层叠物至热轧机中热轧，热轧时纤维拉丝物表面均匀喷洒树脂粉，经过红外线辐射2次进入热轧，热轧条件为160℃、4MPa，得到无纺布，卷绕成型。
详细数据结果见表1。
实施例2
S1：所细纤维聚合物包括低熔点化学纤维、木匠纤维和木浆，低熔点化学纤维：木浆纤维：木匠＝5:3:1，将细纤维聚合物由大螺杆高温熔融挤出，加热温度为280℃，得到熔融状态的聚合物A；
S2：将聚合物A通过挤压机以5.3MPa加压喷丝，将喷丝经过拉伸器拉伸，形成纤维拉丝物B，并引导至浸泡液中进行浸泡8h，然后引导至气流成网机上，所述的浸泡液组份如下：云母粉20份、艾蒿提取物40份、纳米银30份、丙烯酸酯40份、磷酸三酯0.6份、乙二醇40份；
S3：当成网机上层叠四层的纤维拉丝物B时，引导层叠物至热轧机中热轧，热轧时纤维拉丝物表面均匀喷洒树脂粉，经过红外线辐射3次进入热轧，热轧条件为180℃、4MPa，得到无纺布，卷绕成型。
详细数据结果见表1。
对照例1
S1：将细纤维由大螺杆高温熔融挤出，加热温度为260℃，得到熔融状态的聚合物A；
S2：将聚合物A通过挤压机以4.8MPa加压喷丝，将喷丝经过拉伸器拉伸，形成纤维拉丝物B，并引导至浸泡液中进行浸泡6h，然后引导至气流成网机上，所述的浸泡液组份如下：云母粉10份、艾蒿提取物30份、纳米银20份、丙烯酸酯20份、磷酸三酯0.4份、乙二醇30份；
S3：当成网机上层叠三层的纤维拉丝物B时，引导层叠物至热轧机中热轧，热轧时纤维拉丝物表面均匀喷洒树脂粉，经过红外线辐射2次进入热轧，热轧条件为160℃、4MPa，得到无纺布，卷绕成型。
详细数据结果见表1。
对照例2
S1：所细纤维聚合物包括低熔点化学纤维、木匠纤维和木浆，低熔点化学纤维：木浆纤维：木匠＝5:3:1，将细纤维聚合物由大螺杆高温熔融挤出，加热温度为260℃，得到熔融状态的聚合物A；
S2：将聚合物A通过挤压机以4.8MPa加压喷丝，将喷丝经过拉伸器拉伸，形成纤维拉丝物B，并引导至气流成网机上；
S3：当成网机上层叠三层的纤维拉丝物B时，引导层叠物至热轧机中热轧，热轧时纤维拉丝物表面均匀喷洒树脂粉，经过红外线辐射2次进入热轧，热轧条件为160℃、4MPa，得到无纺布，卷绕成型。
详细数据结果见表1。
对照例3
S1：所细纤维聚合物包括低熔点化学纤维、木匠纤维和木浆，低熔点化学纤维：木浆纤维：木匠＝5:3:1，将细纤维聚合物由大螺杆高温熔融挤出，加热温度为260℃，得到熔融状态的聚合物A；
S2：将聚合物A通过挤压机以4.8MPa加压喷丝，将喷丝经过拉伸器拉伸，形成纤维拉丝物B，并引导至浸泡液中进行浸泡6h，然后引导至气流成网机上，所述的浸泡液组份如下：云母粉10份、艾蒿提取物30份、纳米银20份、丙烯酸酯20份、磷酸三酯0.4份、乙二醇30份；
S3：当成网机上层叠三层的纤维拉丝物B时，引导层叠物至热轧机中热轧，热轧条件为160℃、4MPa，得到无纺布，卷绕成型。
详细数据结果见表1。
表1
由表1可知，当更换纤维或未添加树脂时，拉伸断裂强力、断裂强度明显降低，本申请的浸泡液和喷洒树脂粉的双重作用，使其具有阻燃效果的同时能降低附着力，使其不易落灰，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明的范围内。本发明要求保护的范围由所附的权利要求书及其等效物界定。

Claims (5)

1.一种阻燃型医用无纺布的制备方法，其特征在于，包括以下步骤：
S1：将细纤维聚合物的混合物由吸料机吸取引导至加热机加热，加热温度为260～280℃，得到熔融状态的聚合物A；
S2：将聚合物A通过挤压机以4.8～5.3MPa加压喷丝，将喷丝经过拉伸器拉伸，形成纤维拉丝物B，并引导至浸泡液中进行浸泡6～8h，然后引导至成网机上；
S3：当成网机上层叠三层或四层的纤维拉丝物B时，引导层叠物至热轧机中热轧，热轧时纤维拉丝物表面均匀喷洒树脂粉和氢氧化铝阻燃颗粒粉，热轧条件为160～180℃、4MPa，得到无纺布，卷绕成型。
2.根据权利要1所述的阻燃型医用无纺布的制备方法，其特征在于：所述的步骤S3中喷洒树脂粉后经过红外线辐射4～6次进入热轧。
3.根据权利要2所述的阻燃型医用无纺布的制备方法，其特征在于：所述的浸泡液组份如下：云母粉10～20份、艾蒿提取物30～40份、纳米银20～30份、丙烯酸酯20～40份、磷酸三酯0.4～0.6份、乙二醇30～40份。
4.根据权利要3所述的阻燃型医用无纺布的制备方法，其特征在于：所述的细纤维聚合物包括低熔点化学纤维、木匠纤维和木浆，低熔点化学纤维：木浆纤维：木浆＝5:3:1。
5.根据权利要1-4任一所述的阻燃型医用无纺布的制备方法，其特征在于：所述的成网机为气流成网机。
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