CN112391744B - 一种科技棉的制备方法 - Google Patents
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Abstract
本发明公开了一种科技棉的制备方法，使用包括木棉纤维、4080低熔点纤维和中空涤纶纤维的原料制备基底；并采用以下步骤：S1，将基底加热至121‑135℃，并置于磁场中；S2，在平行于磁场方向上向基底上熔喷改性聚对苯二甲酸丁二酯，接着冷却至60‑80℃；然后在熔喷改性聚对苯二甲酸丁二酯后的基底上再铺一层新的基底，并在新的基底上熔喷改性聚对苯二甲酸丁二酯；S3，重复步骤S2，得到四层熔喷有改性聚对苯二甲酸丁二酯的基底，即科技棉，本发明克服了现有技术的不足，本发明的科技棉颜色艳丽额，能够根据环境变化颜色，且保暖效果好。
Description
技术领域
本发明涉及科技棉技术领域，具体属于一种科技棉的制备方法。
背景技术
冬季奥林匹克运动会简称为冬季奥运会、冬奥会。主要由全世界地区举行，是世界规模最大的冬季综合性运动会，每四年举办一届，1994年起与夏季奥林匹克运动会相间举行。参与国主要分布在世界各地，包括欧洲、非洲、美洲、亚洲、大洋洲。由国际奥林匹克委员会(International Olympic Committee)主办。按实际举行次数计算届数。冬奥会的举行都选择在天气比较寒冷的季节进行，以保证场地内各项运动项目的正常进行，因此运动员需要做好保暖，但是现有的保暖棉存在保暖效果差，比重高的缺点，且为了增强保暖效果，保暖棉的厚度一般较厚，影响了透气性，因此需要一种重量轻、保暖效果好的保暖棉。
发明内容
本发明的目的是提供一种重量轻、保暖效果好的科技棉的制备方法，为解决上述问题，本发明所采取的技术方案如下：
一种科技棉的制备方法，使用包括木棉纤维、4080低熔点纤维和中空涤纶纤维的原料制备基底；并采用以下步骤：
S1，将基底加热至121-135℃，并置于磁场中；
S2，在平行于磁场方向上向基底上熔喷改性聚对苯二甲酸丁二酯，接着冷却至60-80℃；然后在熔喷改性聚对苯二甲酸丁二酯后的基底上再铺一层新的基底，并在新的基底上熔喷改性聚对苯二甲酸丁二酯；
S3，重复步骤S2，得到四层熔喷有改性聚对苯二甲酸丁二酯的基底，即科技棉。
进一步，所述的基底的制备方法为：将木棉纤维、4080低熔点纤维和中空涤纶纤维按照重量份1:0.1-0.3:0.4-0.6送入混棉机充分搅碎混合，形成混合棉纤维，然后送入梳理机进行梳理；将梳理后的混和棉纤维送入铺棉机铺棉，得到基底。
进一步，所述的铺棉机的铺棉量为6-10g/m2。
进一步，所述的改性聚对苯二甲酸丁二酯的制备方法为：将聚对苯二甲酸丁二酯加热至230℃，然后加入聚对苯二甲酸丁二酯3-5％重量份的邻二氮杂菲亚铁，然后在高速剪切机中剪切1-1.2h，得到改性聚对苯二甲酸丁二酯。
进一步，所述的磁场强度为8000-12000Oe。
本发明与现有技术相比较，本发明的实施效果如下：
1、本发明通过使用木棉纤维、4080低熔点纤维和中空涤纶纤维为原料制备基底材料，使基底材料在中空涤纶纤维的支撑、木棉纤维的蓬松作用和4080低熔点纤维的熔接作用下，使基底材料的强度得到了增强，同时保证了木棉纤维的蓬松结构不易坍塌，使基底材料材料具有强度好，导热性差和蓬松度高的优点，具有较好的保温能力；
2、本发明通过使用磁场熔喷技术，使熔融的改性聚对苯二甲酸丁二酯在磁场作用下形成的绒小枝能够均匀的喷射到基底上，并在4080低熔点纤维的熔接作用下结合在基底的表面上，使基地的表面形成了取向相同的绒小枝，增加了单位质量的改性聚对苯二甲酸丁二酯形成的绒小枝的蓬松度，从而提高了保暖的效果，且减小了科技棉单位体积的重量；
3、本发明通过使用邻二氮杂菲亚铁对聚对苯二甲酸丁二酯进行改性，在高温剪切过程中，使改性后的聚对苯二甲酸丁二酯内产生了部分的三价铁，使改性的聚对苯二甲酸丁二酯具有了磁性，从而使改性聚对苯二甲酸丁二酯形成的绒小枝能够在磁场中定向喷射到基底的表面，且由于邻二氮杂菲亚铁中二价铁和三价铁随环境的变化发生转变，使该科技棉的颜色能够在淡蓝色和红色之间变化。
4、本发明的科技棉颜色艳丽额，能够根据环境变化颜色，且保暖效果好。
具体实施方式
下面将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
将10kg木棉纤维、2kg 4080低熔点纤维和5kg中空涤纶纤维送入混棉机充分搅碎混合，形成混合棉纤维，然后送入梳理机进行梳理；将梳理后的混和棉纤维送入铺棉机铺棉，铺棉机的铺棉量为7g/m2，得到基底。
将聚对苯二甲酸丁二酯加热至230℃，然后加入聚对苯二甲酸丁二酯3％重量份的邻二氮杂菲亚铁，然后在高速剪切机中剪切1.2h，得到改性聚对苯二甲酸丁二酯。
将基底加热至127℃，并置于10000Oe磁场中，使基底垂直于磁场；在平行于磁场方向上向基底上熔喷改性聚对苯二甲酸丁二酯，接着冷却至70℃；然后在熔喷改性聚对苯二甲酸丁二酯后的基底上再铺一层新的基底，并在新的基底上熔喷改性聚对苯二甲酸丁二酯；重复上述，得到四层叠加的熔喷有改性聚对苯二甲酸丁二酯的基底，即科技棉。
实施例2
将10kg木棉纤维、3kg 4080低熔点纤维和6kg中空涤纶纤维送入混棉机充分搅碎混合，形成混合棉纤维，然后送入梳理机进行梳理；将梳理后的混和棉纤维送入铺棉机铺棉，铺棉机的铺棉量为9g/m2，得到基底。
将聚对苯二甲酸丁二酯加热至230℃，然后加入聚对苯二甲酸丁二酯5％量份的邻二氮杂菲亚铁，然后在高速剪切机中剪切1.2h，得到改性聚对苯二甲酸丁二酯。
将基底加热至131℃，并置于12000Oe磁场中，使基底垂直于磁场；在平行于磁场方向上向基底上熔喷改性聚对苯二甲酸丁二酯，接着冷却至80℃；然后在熔喷改性聚对苯二甲酸丁二酯后的基底上再铺一层新的基底，并在新的基底上熔喷改性聚对苯二甲酸丁二酯；重复上述，得到四层叠加的熔喷有改性聚对苯二甲酸丁二酯的基底，即科技棉。
实施例3
将10kg木棉纤维、2kg 4080低熔点纤维和4kg中空涤纶纤维送入混棉机充分搅碎混合，形成混合棉纤维，然后送入梳理机进行梳理；将梳理后的混和棉纤维送入铺棉机铺棉，铺棉机的铺棉量为8g/m2，得到基底。
将聚对苯二甲酸丁二酯加热至230℃，然后加入聚对苯二甲酸丁二酯4％重量份的邻二氮杂菲亚铁，然后在高速剪切机中剪切1h，得到改性聚对苯二甲酸丁二酯。
将基底加热至124℃，并置于8000Oe磁场中，使基底垂直于磁场；在平行于磁场方向上向基底上熔喷改性聚对苯二甲酸丁二酯，接着冷却至60℃；然后在熔喷改性聚对苯二甲酸丁二酯后的基底上再铺一层新的基底，并在新的基底上熔喷改性聚对苯二甲酸丁二酯；重复上述，得到四层叠加的熔喷有改性聚对苯二甲酸丁二酯的基底，即科技棉。
对照例1
与实施例1的不同在于磁场强度为0Oe。
对照例2
与实施例1的不同在于邻二氮杂菲亚铁的加入量为0。
将实施例和对照例中的科技棉按照以下方法测试保暖率和透气率：将科技棉40℃预热1800秒进行保温率测试；将科技棉进行透气率测试，试样面积20cm2，试样两面压降设定100Pa；结果如下表所示：
| 保暖率％ | 透气率mm/s | 克重g/m<sup>2</sup> | |
| 实施例1 | 86.3 | 435.1 | 108 |
| 实施例2 | 88.4 | 463.8 | 112 |
| 实施例3 | 85.9 | 457.2 | 109 |
| 对照例1 | 78.3 | 283.6 | 143 |
| 对照例2 | 74.6 | 296.1 | 137 |
由上表可知，本发明的科技棉具有较好的保暖性能，同时透气性也较好，重量较轻。
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 (4)
1.一种科技棉的制备方法，其特征在于，使用包括木棉纤维、4080低熔点纤维和中空涤纶纤维的原料制备基底；并采用以下步骤：
S1，将基底加热至121℃-135℃，并置于磁场中；
S2，在平行于磁场方向上向基底上熔喷改性聚对苯二甲酸丁二酯，接着冷却至60℃-80℃；然后在熔喷改性聚对苯二甲酸丁二酯后的基底上再铺一层新的基底，并在新的基底上熔喷改性聚对苯二甲酸丁二酯；
S3，重复步骤S2，得到四层熔喷有改性聚对苯二甲酸丁二酯的基底，即科技棉；
所述的改性聚对苯二甲酸丁二酯的制备方法为：将聚对苯二甲酸丁二酯加热至230℃，然后加入聚对苯二甲酸丁二酯3-5%重量份的邻二氮杂菲亚铁，然后在高速剪切机中剪切1-1.2h，得到改性聚对苯二甲酸丁二酯。
2.根据权利要求1所述的一种科技棉的制备方法，其特征在于，所述的基底的制备方法为：将木棉纤维、4080低熔点纤维和中空涤纶纤维按照重量份1:0.1-0.3:0.4-0.6送入混棉机充分搅碎混合，形成混合棉纤维，然后送入梳理机进行梳理；将梳理后的混合 棉纤维送入铺棉机铺棉，得到基底。
3.根据权利要求2所述的一种科技棉的制备方法，其特征在于，所述的铺棉机的铺棉量为6-10g/m2。
4.根据权利要求1所述的一种科技棉的制备方法，其特征在于，所述的磁场强度为8000-12000Oe。
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