CN107419526A - 一种天然驱蚊抗菌艾草夏凉蚕丝絮袋的生产方法 - Google Patents
一种天然驱蚊抗菌艾草夏凉蚕丝絮袋的生产方法 Download PDFInfo
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Abstract
本发明属于生态功能性纺织品应用技术领域,具体公开了一种天然驱蚊抗菌艾草夏凉蚕丝絮袋的生产方法,包括如下步骤:步骤1、材料准备:原材料为蚕丝絮袋、艾草、乙醇、尿素、甲醛;仪器为Color‑EYE 3100型测色配色仪、TU‑1901型双光束紫外可见光分光光度计、YG(B)912E型纺织品防紫外性能测试仪。步骤2、准备试验:以浓度为60%‑95%乙醇分别进行浸渍,每次4L,24h,共2次,再合并滤液,抽滤,然后将药渣弃去,所得滤液经旋转蒸发减压蒸馏,回收乙醇,制成浸膏。步骤3、利用艾草微胶囊整理蚕丝絮袋,浸渍时间为30min,烘干温度60℃、烘干时间为30min。本发明的有益效果在于:天然驱蚊抗菌艾草夏凉丝絮袋具有高效的驱蚊效果,优异的抗菌效果,持久性强,天然提取对人畜完全无害。
Description
技术领域
本发明属于生态功能性纺织品应用技术领域,具体涉及一种天然驱蚊抗菌艾草夏凉蚕丝絮袋的生产方法。
背景技术
随着经济的发展以及生活水平的提高,人们对纺织品的要求发生了很大的变化,从过去的实用型向装饰、享受、保健型转化,纺织品加香顺应了这一趋势。由于艾草纺织品具有抑菌驱虫、掩盖异味、天然芳香、使身心舒适等作用,因而得到了人们的普遍喜欢。
夏天到来,作为“四害”之一的蚊子给人们的生活带来很大的危害。嗡嗡的声音徘徊在耳边,扰人睡眠,进而影响到新一天的工作、学习和生活。如果不幸被蚊子叮咬,就会疼痒难耐,坐立不安。更严重的是蚊子会传播疾病。因此一款好的驱蚊家纺面料在夏季显得尤为重要。它不仅能起到良好的效用,更重要是对人体健康伤害较小,同时对于环境没有任何污染。本产品以天然驱蚊植物艾草提取物为芯材制备驱蚊微胶囊,再将其应用于蚕丝絮袋上。微胶囊化后芯材与外界环境隔绝,它的性质基本不变,开始时在微胶囊外层的香精散发香味;随后在纺织品的穿着过程中,由于经受摩擦、受热等外来作用,使微胶囊内部的香精缓缓地释放香味,起到长效缓释的作用,从而使纺织品具有相当持久的芳香驱蚊。同时,艾草与中国人的生活有着密切的关系,每至端午节之际,人们总是将艾置于家中以“避邪”,秆枯后的株体泡水熏蒸以达消毒止痒。传统药性理论认为艾叶有理气血,逐寒湿、温经、止血、安胎等作用。
发明内容
发明目的:本发明的目的是提供一种天然驱蚊抗菌艾草夏凉蚕丝絮袋的生产方法,其利用天然植物艾草的有效成分提取并进行微胶囊包覆,通过浸渍整理的方法整理到蚕丝絮袋产品中去,促进了未来纺织品生态染色的发展。
技术方案:本发明提供种一种天然驱蚊抗菌艾草夏凉蚕丝絮袋的生产方法,包括如下步骤:步骤1、材料准备:原材料为蚕丝絮袋、艾草、乙醇、尿素、甲醛;仪器为Color-EYE3100型测色配色仪、TU-1901型双光束紫外可见光分光光度计、YG(B)912E型纺织品防紫外性能测试仪。步骤2、准备试验:首先将500g干燥的艾草粉碎,以浓度为60%-95%乙醇分别进行浸渍,每次4L,24h,共2次,再合并滤液,抽滤,然后将药渣弃去,所得滤液经旋转蒸发减压蒸馏,回收乙醇,制成浸膏,最后用提取出的艾草浸膏,通过1:3的芯壁比,以乙酸乙酯作为溶剂,取1.5g艾草浸膏溶解在0.50mL溶剂中,乳化剂用量为1.0g,制备艾草微胶囊。步骤3、利用艾草微胶囊整理蚕丝絮袋,整理工艺流程为室温下浸渍微胶囊整理液→脱水→烘干→水洗,其中,浸渍时间为30min,烘干温度60℃、烘干时间为30min;整理液配方为艾草微胶囊整理剂75g/L,低温粘合剂40g/L,JFC 1g/L,浴比1∶15。步骤4、结果测试:A、艾草吸光度的测试:利用双光束紫外可见光分光光度对染液吸光度进行测试;B、驱蚊效果的测定:GB/T17322.10-1998《农药登记卫生用杀虫剂的室内药效评价;驱避剂》的标准测试试剂驱杀蚊效果;C、抗菌效果的测试:抗菌性试验根据纺织行业标准FZ/T01021-92《织物抗菌性能试验方法》进行试验。
本技术方案的,所述步骤2中天然艾草提取有效成分的乙醇浓度为65%。
本技术方案的,所述原位聚合法制备脲醛树脂微胶囊,选用的芯壁比为1:3乙酸乙酯做溶剂、阴离子和非离子表面活性剂复配的乳化剂对制备的脲醛树脂微胶囊平均粒径小且分布范围较窄。
与现有技术相比,本发明的一种天然驱蚊抗菌艾草夏凉蚕丝絮袋的生产方法的有益效果在于:本发明的天然驱蚊抗菌艾草夏凉丝絮袋具有高效的驱蚊效果,优异的抗菌效果,持久性强,天然提取对人畜完全无害。
附图说明
图1是本发明脲醛树脂微胶囊制备路线示意图;
图2是本发明微胶囊显微镜照片和粒径分布对照示意图;
图3是本发明最佳HLB值的确定示意图;
图4是本发明不同乳化剂用量与平均粒径的关系示意图;
图5是本发明实际驱蚊效果示意图;
图6是本发明实际驱蚊率与测试时间的关系示意图。
具体实施方式
下面结合具体实施例,进一步阐明本发明。
实施例
如图1至图6所示的本发明一种天然驱蚊抗菌艾草夏凉蚕丝絮袋的生产方法,包括如下步骤:步骤1、材料准备:原材料为蚕丝絮袋、艾草、乙醇、尿素、甲醛;仪器为Color-EYE3100型测色配色仪、TU-1901型双光束紫外可见光分光光度计、YG(B)912E型纺织品防紫外性能测试仪。步骤2、准备试验:首先将500g干燥的艾草粉碎,以浓度为60%-95%乙醇分别进行浸渍,每次4L,24h,共2次,再合并滤液,抽滤,然后将药渣弃去,所得滤液经旋转蒸发减压蒸馏,回收乙醇,制成浸膏,最后用提取出的艾草浸膏,通过1:3的芯壁比,以乙酸乙酯作为溶剂,取1.5g艾草浸膏溶解在0.50mL溶剂中,乳化剂用量为1.0g,制备艾草微胶囊。步骤3、利用艾草微胶囊整理蚕丝絮袋,整理工艺流程为室温下浸渍微胶囊整理液→脱水→烘干→水洗,其中,浸渍时间为30min,烘干温度60℃、烘干时间为30min;整理液配方为艾草微胶囊整理剂75g/L,低温粘合剂40g/L,JFC 1g/L,浴比1∶15。步骤4、结果测试:A、艾草吸光度的测试:利用双光束紫外可见光分光光度对染液吸光度进行测试;B、驱蚊效果的测定:GB/T17322.10-1998《农药登记卫生用杀虫剂的室内药效评价;驱避剂》的标准测试试剂驱杀蚊效果;C、抗菌效果的测试:抗菌性试验根据纺织行业标准FZ/T01021-92《织物抗菌性能试验方法》进行试验。
进一步优选的,步骤2中天然艾草提取有效成分的乙醇浓度为65%;所述原位聚合法制备脲醛树脂微胶囊,选用的芯壁比为1:3乙酸乙酯做溶剂、阴离子和非离子表面活性剂复配的乳化剂对制备的脲醛树脂微胶囊平均粒径小且分布范围较窄。
1、艾草有效成分的提取;
将500g干燥的艾草粉碎,以一定浓度的乙醇(65%,75%,95%)浸渍,每次4L,24h,共2次,合并滤液,抽滤,将药渣弃去,所得滤液经旋转蒸发减压蒸馏,回收乙醇,制成浸膏。
表1 不同浓度乙醇制备艾草浸膏产率
乙醇提取液浓度/% | 提取剂体积/L | 浸出液体积/L | 浸膏质量/g | 浸膏产率/% |
65 | 8 | 6.25 | 95.8 | 19.16 |
75 | 8 | 6.25 | 84.0 | 16.80 |
95 | 8 | 6.25 | 50.0 | 10.00 |
从表1可以看出,采用65%乙醇溶液作为提取剂,艾草浸膏的产率最大,因此选择65%的乙醇溶液作为提取剂。
2、艾草芳香微胶囊的制备;
2.1 微胶囊制备原理,微胶囊的制备可以归纳为物理化学法、物理机械法和化学法三大类。表2为几种不同芳香微胶囊的主要性能。
表2 芳香微胶囊主要性能
通过比较各种制备方法的优缺点以及各种微胶囊的性能分析,本研究原位聚合法制备脲醛树脂微胶囊,因其驱蚊持久性较长,且耐洗涤性好。
2.2 微胶囊制备路线
艾草微驱蚊胶囊的制备过程见图1。
2.3 制备工艺
(1)溶剂的选择
以乙酸乙酯作为溶剂,取1.5g艾草浸膏溶解在0.50mL溶剂中,乳化剂用量为1.0g,制得的艾草微胶囊显微镜照片和粒径分布分如图2所示。
从显微镜照片可以看出,用乙酸乙酯作溶剂,有形态规整的微胶囊形成。从粒径分布图可明显看出,用乙酸乙酯作溶剂制备的微胶囊平均粒径小且粒径分布范围窄。
(2)乳化剂的复配及用量
以阴离子型表面活性剂A和非离子型表面活性剂B复配乳化剂。最佳HLB 值的确定如图3所示,由图3可得,HLB值为12时,制备得到的乳液稳定性最好,稳定时间为12天左右。
乳化剂用量与艾草微胶囊平均粒径之间的关系见图4,从图4可以看出,随着乳化剂用量的增加,乳化能力增强,制备的艾草微胶囊的平均粒径随之变小,粒径分布也更窄。继续增加乳化剂用量至1.26%,平均粒径有增大至7.64μm。这是因为随着乳化剂用量进一步增加,体系的粘度也随之增大,反而阻碍了脲醛颗粒在芯材表面的正常沉积,导致微胶囊粒径变大,粒径分布也相应变宽,因此乳化剂用量以占乳液体系总质量的1%为宜。
(3)芯壁比
芯壁比为1∶5时无明显微胶囊生成,这是因为芯材用量过少,使得生成的脲醛树脂粒子不能有效沉积在芯材表面而是相互聚集成块,导致无明显微胶囊生成。芯壁比1∶4时,有少量微胶囊生成,但还是有明显的脲醛树脂聚集体。当芯壁比为1∶3时制备的微胶囊分散性好,粒径分布均匀;继续增加芯材用量,微胶囊的粒径反而变大且粒径分布也变大,这是因为在一定流体力学条件下,芯材用量增加,使得所产生的液滴数目增加,因而导致液滴间有效碰撞及凝结的概率增大。另外,若芯材比例太大,水相中壁材预聚体的浓度不够,形成的囊壁太薄,机械强度差,容易破裂。
3、蚕丝絮袋微胶囊整理;
3.1 织物整理工艺
整理工艺流程:室温下浸渍微胶囊整理液(30min)→脱水→烘干(60℃,30min)→水洗
整理液配方:艾草微胶囊整理剂: 75g/L
低温粘合剂 40g/L
JFC 1g/L
浴比 1∶15
芳香整理织物的洗涤:
将一部分抗菌驱蚊整理过的絮袋面料进行洗涤,洗涤程序如下:
(1)准备:恒温水浴锅水温升至40℃左右,将1g/L的洗涤剂及蒸馏水加入烧杯,并放入样品;
(2)洗涤:用玻璃棒连续搅拌10min,此时如水温下降,加热器即自动动作,使洗涤温度维持在40℃,之后取出样品;
(3)漂洗:将清水加足至最高位,搅动3min,将水排尽;
(4)晾干:将洗涤过的织物自然放置晾干。
3.2 驱蚊效果测试
根据GB/T 17322.10-1998《农药登记卫生用杀虫剂的室内药效评价;驱避剂》的标准测试试剂驱杀蚊效果。试验方法如下:
试验前先进行攻击力试验,在长×宽×高为40 cm×30cm×30 cm 的蚊笼内放入约100只白纹伊蚊,在手背暴露4 cm×4 cm 皮肤,其余部分严密遮蔽。将手伸入蚊笼中2 min,前来停落的试虫多于30 只者为攻击力合格,此人及此笼蚊虫可用于驱避试验。选攻击力合格的试虫及5名志愿人员,在人的双手背上各暴露其中的4 cm×4 cm 皮肤,严密遮蔽其余部分。一只手的暴露部分用裁取的防蚊蚊帐布覆盖,另一只手的暴露部分用未经处理的相同质料织物覆盖,做空白对照。将手伸入放有攻击力合格蚊虫的笼中2 min,观察蚊虫的侵袭情况,凡在织物上停落5s 以上者记为侵袭一次。将防蚊整理后的蚊帐分别放置1周、2周、3周、4周后重复上述试验(实验结果如图5和图6所示)。
由图5和图6可知,未整理的织物对蚊子无明显驱避效果,而整理后的织物对蚊子有明显的驱避效果,平均驱避率达87.8%,说明包裹在微胶囊中的艾草的天然驱蚊活性成分透过微孔释放出来,使得蚊子不敢靠近。
3.3 抗菌效果测试
根据最佳整理工艺制备出驱蚊抗菌蚕丝絮袋产品,进行织物抗菌性能测试。抗菌性试验根据纺织行业标准FZ/T01021-92《织物抗菌性能试验方法》进行试验,织物抗菌性实验结果见表3。
表3 艾草驱蚊抗菌微胶囊用量对蚕丝织物抗菌性能的影响
从表3可以看出,随着艾草精油微胶囊的用量的增加,整理后蚕丝絮袋的抑菌率逐渐上升,对大肠杆菌的抑菌效果在微胶囊用量为30g/L的时候就已经达到 97.42%;随着微胶囊用量的再增加,抑菌效果基本不变。对金黄色葡萄球菌的抑菌率在微胶囊用量为 30g/L 的时候达到了95.70%,微胶囊用量再增加,抑菌率增加较缓慢。从上述说明微胶囊用量再30g/L时候可使棉织物达到很好的抗菌效果,当微胶囊用量继续增加,整理至织物上的微胶囊基本达到饱和,对抗菌效果基本没有影响。所以选择微胶囊的用量为30g/L对棉织物进行整理。
4、本发明得出的结论如下:(1)通过对天然艾草进行有效成分提取,并对其进行微胶囊包覆,将制备出的艾草微胶囊整理蚕丝夏凉被絮袋;(2)蚕丝夏凉被絮袋驱蚊保留时间至少6个月以上;(3)蚕丝夏凉被絮袋金黄色葡萄球菌抗菌率达到95.87%,大肠杆菌达到97.42%;(4)天然艾草夏凉丝被絮袋功能生态家纺产品,具有镇静、杀菌、催眠、保健等保健作用。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以作出若干改进,这些改进也应视为本发明的保护范围。
Claims (3)
1.一种天然驱蚊抗菌艾草夏凉蚕丝絮袋的生产方法,其特征在于:包括如下步骤:
步骤1、材料准备:原材料为蚕丝絮袋、艾草、乙醇、尿素、甲醛;仪器为Color-EYE 3100型测色配色仪、TU-1901型双光束紫外可见光分光光度计、YG(B)912E型纺织品防紫外性能测试仪;
步骤2、准备试验:首先将500g干燥的艾草粉碎,以浓度为60%-95%乙醇分别进行浸渍,每次4L,24h,共2次,再合并滤液,抽滤,然后将药渣弃去,所得滤液经旋转蒸发减压蒸馏,回收乙醇,制成浸膏,最后用提取出的艾草浸膏,通过1:3的芯壁比,以乙酸乙酯作为溶剂,取1.5g艾草浸膏溶解在0.50mL溶剂中,乳化剂用量为1.0g,制备艾草微胶囊;
步骤3、利用艾草微胶囊整理蚕丝絮袋,整理工艺流程为室温下浸渍微胶囊整理液→脱水→烘干→水洗,其中,浸渍时间为30min,烘干温度60℃、烘干时间为30min;整理液配方为艾草微胶囊整理剂75g/L,低温粘合剂40g/L,JFC 1g/L,浴比1∶15;
步骤4、结果测试:A、艾草吸光度的测试:利用双光束紫外可见光分光光度对染液吸光度进行测试;B、驱蚊效果的测定:GB/T 17322.10-1998《农药登记卫生用杀虫剂的室内药效评价;驱避剂》的标准测试试剂驱杀蚊效果;C、抗菌效果的测试:抗菌性试验根据纺织行业标准FZ/T01021-92《织物抗菌性能试验方法》进行试验。
2.根据权利要求1所述的一种天然驱蚊抗菌艾草夏凉蚕丝絮袋的生产方法,其特征在于:所述步骤2中天然艾草提取有效成分的乙醇浓度为65%。
3.根据权利要求1所述的一种天然驱蚊抗菌艾草夏凉蚕丝絮袋的生产方法,其特征在于:所述原位聚合法制备脲醛树脂微胶囊,选用的芯壁比为1:3乙酸乙酯做溶剂、阴离子和非离子表面活性剂复配的乳化剂对制备的脲醛树脂微胶囊平均粒径小且分布范围较窄。
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