CN107142716B - 一种具有抗紫外功能有色纺织品的制备方法 - Google Patents
一种具有抗紫外功能有色纺织品的制备方法 Download PDFInfo
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 9
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 9
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 claims description 9
- 238000010186 staining Methods 0.000 claims description 9
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- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 2
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- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 2
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- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
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Abstract
本发明提供了一种具有抗紫外功能有色纺织品的制备方法,该方法利用纤维素纤维上羟基与Ce3+间的静电引力,提高还原染料隐色体对织物的染色深度;采用水热反应,在纺织品上原位生成CeO2,所得纺织品具有优异的抗紫外性能。
Description
技术领域
本发明属纺织技术领域,特别是涉及一种具有抗紫外功能有色纺织品的制备方法。
背景技术
紫外线即波长处于180-400nm范围内的光线,适度的紫外线照射,有利于人体对钙的吸收,但过度的紫外线照射会使人反应迟钝、记忆力下降,甚至诱发皮肤癌。鉴于紫外光对人体的危害性,日本、美国、德国、荷兰等国家甚至将小学生服装用品的防紫外线功能列入了法律条文,由此可见开发防紫外线辐射织物的重要性。
CeO2是一种应用广泛的稀土材料,具有独特的4F电子层结构,表现出较强的紫外屏蔽能力,且CeO2无毒,性能稳定,是一种理想的紫外屏蔽剂。目前,以CeO2作为紫外线屏蔽剂开发的防紫外线辐射织物鲜有报道。
发明内容
本发明所要解决的技术问题在于提供一种以CeO2作为紫外线屏蔽剂的有色抗紫外线辐射织物的制备方法。
为实现上述目的,本发明提供的技术方案是:首先对纤维素纤维织物进行碱化处理,然后将纤维素纤维织物浸渍硝酸亚铈溶液;再采用还原染料隐色体对纤维素纤维织物进行染色,染色结束后,浸入含少量H2O2的碱性水溶液中,再采用水热晶化,在织物上原位形成CeO2,同时完成还原染料隐色体的氧化。
上述制备方法的具体步骤为:
(1)将纤维素纤维织物浸入质量分数30%-50%的NaOH水溶液中,室温下碱化1-2h,碱化结束后,水洗至洗涤液pH 7-8,然后在60-80℃烘干,备用;
(2)将上述经碱化处理的纤维素纤维织物浸渍在质量浓度20-40g/L的Ce(NO3)3·6H2O溶液中,浸渍温度60-80℃,浸渍时间60-90min,浸渍结束后,轧辊轧压,轧余率80-100%,水洗2-3次,在60-80℃烘干,备用;
(3)将浸轧有Ce3+的纤维素纤维织物进行还原染料隐色体染色,染色配方如下:
染色步骤:将还原染料以少量蒸馏水调成浆状,加入土耳其红油和热水,然后依次加入规定量的NaOH和保险粉,在45-60℃还原10-15min,使染料完全还原,制成隐色体染液;将染液温度升至50-60℃后,加入浸轧有Ce3+的纤维素纤维织物,15min后加入1/2的元明粉,续染15min后再加入剩余1/2量的元明粉,再续染15min,染色结束;
(4)在具有聚四氟乙烯的高压反应釜中,配制质量浓度2.5-5.0g/L的30%H2O2溶液,用氨水调节溶液pH至9-10;将步骤(3)中纤维素纤维织物从染液中取出,冷水洗涤2次后,投入高压反应釜中,然后将高压反应釜密封后,水热反应,反应结束后,冷却至室温,将织物取出,水洗2次后,在90℃,Na2CO3 2g/L,皂片2g/L,浴比1:30条件下,皂煮10-15min后,水洗3-5次,150-170℃焙烘60-120s,即可。
作为优选,步骤(1)中所述的纤维素纤维织物为纯棉织物、纯麻织物或两者的交织物。
作为优选,步骤(4)中所述的水热反应条件为反应温度180-230℃,反应时间24-48h。
由上述技术方案可知:本发明首先采用强碱对纤维素纤维进行碱化处理,提高纤维素纤维上羟基的反应活性,然后利用羟基与Ce3+间的静电引力,将Ce3+处理到纺织品上;在还原染料隐色体染色过程中,Ce3+起到媒染剂的作用,提高了染料的上染率以及与织物的结合牢度;在水热反应过程中,双氧水将还原染料隐色体氧化为还原染料,同时将Ce3+氧化为Ce4+。
本发明的有益效果在于:
(1)以Ce3+作为还原染料隐色体媒染剂,安全环保。
(2)水热反应中,双氧水既是还原染料隐色体的氧化剂,又是Ce3+的氧化剂。
(3)CeO2在纺织品上原位生成,解决了无机材料与纺织品结合牢度差的问题。
具体实施方式
下面结合具体实施例,进一步阐述本发明。应理解,这些实施例仅用于说明本发明而不用于限制本发明的范围。
实施例1
(1)将纯棉织物浸入质量分数30%的NaOH水溶液中,室温下碱化2h,碱化结束后,水洗至洗涤液pH 7,然后在60℃烘干,备用;
(2)将上述经碱化处理的纯棉织物浸渍在质量浓度20g/L的Ce(NO3)3·6H2O溶液中,浸渍温度60℃,浸渍时间90min,浸渍结束后,轧辊轧压,轧余率80%,水洗2次,在60℃烘干,备用;
(3)将浸轧有Ce3+的纯棉织物进行还原染料隐色体染色,染色配方如下:
染色步骤:将还原染料以少量蒸馏水调成浆状,加入土耳其红油和热水,然后依次加入规定量的NaOH和保险粉,在45℃还原15min,使染料完全还原,制成隐色体染液;将染液温度升至50℃后,加入浸轧有Ce3+的纯棉织物,15min后加入1/2的元明粉,续染15min后再加入剩余1/2量的元明粉,再续染15min,染色结束;
(4)在具有聚四氟乙烯的高压反应釜中,配制质量浓度2.5g/L的30%H2O2溶液,用氨水调节溶液pH至9;将步骤(3)中纯棉织物从染液中取出,冷水洗涤2次后,投入高压反应釜中,然后将高压反应釜密封后,180℃水热反应48h,反应结束后,冷却至室温,将织物取出,水洗2次后,在90℃,Na2CO3 2g/L,皂片2g/L,浴比1:30条件下,皂煮10min后,水洗3次,150℃焙烘120s,即可。
比较例1-1
(1)将纯棉织物浸入质量分数30%的NaOH水溶液中,室温下碱化2h,碱化结束后,水洗至洗涤液pH 7,然后在60℃烘干,备用;
(2)将上述经碱化处理的纯棉织物进行还原染料隐色体染色,染色配方如下:
染色步骤:将还原染料以少量蒸馏水调成浆状,加入土耳其红油和热水,然后依次加入规定量的NaOH和保险粉,在45℃还原15min,使染料完全还原,制成隐色体染液;将染液温度升至50℃后,加入碱化处理的纯棉织物,15min后加入1/2的元明粉,续染15min后再加入剩余1/2量的元明粉,再续染15min,染色结束;
(3)在具有聚四氟乙烯的高压反应釜中,配制质量浓度2.5g/L的30%H2O2溶液,用氨水调节溶液pH至9;将步骤(2)中纯棉织物从染液中取出,冷水洗涤2次后,投入高压反应釜中,然后将高压反应釜密封后,180℃水热反应48h,反应结束后,冷却至室温,将织物取出,水洗2次后,在90℃,Na2CO3 2g/L,皂片2g/L,浴比1:30条件下,皂煮10min后,水洗3次,150℃焙烘120s,即可。
比较例1-2
(1)将纯棉织物浸入质量分数30%的NaOH水溶液中,室温下碱化2h,碱化结束后,水洗至洗涤液pH 7,然后在60℃烘干,备用;
(2)将上述经碱化处理的纯棉织物进行还原染料隐色体染色,染色配方如下:
染色步骤:将还原染料以少量蒸馏水调成浆状,加入土耳其红油和热水,然后依次加入规定量的NaOH和保险粉,在45℃还原15min,使染料完全还原,制成隐色体染液;将染液温度升至50℃后,加入碱化处理的纯棉织物,15min后加入1/2的元明粉,续染15min后再加入剩余1/2量的元明粉,再续染15min,染色结束;
(3)在具有聚四氟乙烯的高压反应釜中,配制质量浓度2.5g/L的30%H2O2溶液,以及质量浓度20g/L的Ce(NO3)3·6H2O,用氨水调节溶液pH至9;将步骤(2)中纯棉织物从染液中取出,冷水洗涤2次后,投入高压反应釜中,然后将高压反应釜密封后,180℃水热反应48h,反应结束后,冷却至室温,将织物取出,水洗2次后,在90℃,Na2CO32g/L,皂片2g/L,浴比1:30条件下,皂煮10min后,水洗3次,150℃焙烘120s,即可。
实施例2
(1)将纯麻织物浸入质量分数50%的NaOH水溶液中,室温下碱化1h,碱化结束后,水洗至洗涤液pH8,然后在80℃烘干,备用;
(2)将上述经碱化处理的纯麻织物浸渍在质量浓度40g/L的Ce(NO3)3·6H2O溶液中,浸渍温度80℃,浸渍时间60min,浸渍结束后,轧辊轧压,轧余率100%,水洗3次,在80℃烘干,备用;
(3)将浸轧有Ce3+的纯麻织物进行还原染料隐色体染色,染色配方如下:
染色步骤:将还原染料以少量蒸馏水调成浆状,加入土耳其红油和热水,然后依次加入规定量的NaOH和保险粉,在60℃还原10min,使染料完全还原,制成隐色体染液;将染液温度升至60℃后,加入浸轧有Ce3+的纯麻织物,15min后加入1/2的元明粉,续染15min后再加入剩余1/2量的元明粉,再续染15min,染色结束;
(4)在具有聚四氟乙烯的高压反应釜中,配制质量浓度5.0g/L的30%H2O2溶液,用氨水调节溶液pH至10;将步骤(3)中纯麻织物从染液中取出,冷水洗涤2次后,投入高压反应釜中,然后将高压反应釜密封后,230℃水热反应24h,反应结束后,冷却至室温,将织物取出,水洗2次后,在90℃,Na2CO3 2g/L,皂片2g/L,浴比1:30条件下,皂煮15min后,水洗5次,170℃焙烘60s,即可。
比较例2
(1)将纯麻织物浸入质量分数50%的NaOH水溶液中,室温下碱化1h,碱化结束后,水洗至洗涤液pH8,然后在80℃烘干,备用;
(2)将上述经碱化处理的纯麻织物进行还原染料隐色体染色,染色配方如下:
染色步骤:将还原染料以少量蒸馏水调成浆状,加入土耳其红油和热水,然后依次加入规定量的NaOH和保险粉,在60℃还原10min,使染料完全还原,制成隐色体染液;将染液温度升至60℃后,加入经碱化处理的纯麻织物,15min后加入1/2的元明粉,续染15min后再加入剩余1/2量的元明粉,再续染15min,染色结束;
(3)在具有聚四氟乙烯的高压反应釜中,配制质量浓度5.0g/L的30%H2O2溶液,用氨水调节溶液pH至10;将步骤(2)中纯麻织物从染液中取出,冷水洗涤2次后,投入高压反应釜中,然后将高压反应釜密封后,230℃水热反应24h,反应结束后,冷却至室温,将织物取出,水洗2次后,在90℃,Na2CO3 2g/L,皂片2g/L,浴比1:30条件下,皂煮15min后,水洗5次,170℃焙烘60s,即可。
实施例3
(1)将棉麻混纺织物浸入质量分数40%的NaOH水溶液中,室温下碱化1.5h,碱化结束后,水洗至洗涤液pH 7.5,然后在70℃烘干,备用;
(2)将上述经碱化处理的棉麻混纺织物浸渍在质量浓度30g/L的Ce(NO3)3·6H2O溶液中,浸渍温度70℃,浸渍时间70min,浸渍结束后,轧辊轧压,轧余率90%,水洗3次,在70℃烘干,备用;
(3)将浸轧有Ce3+的棉麻混纺织物进行还原染料隐色体染色,染色配方如下:
染色步骤:将还原染料以少量蒸馏水调成浆状,加入土耳其红油和热水,然后依次加入规定量的NaOH和保险粉,在55℃还原12min,使染料完全还原,制成隐色体染液;将染液温度升至55℃后,加入浸轧有Ce3+的棉麻混纺织物,15min后加入1/2的元明粉,续染15min后再加入剩余1/2量的元明粉,再续染15min,染色结束;
(4)在具有聚四氟乙烯的高压反应釜中,配制质量浓度3.0g/L的30%H2O2溶液,用氨水调节溶液pH至9.5;将步骤(3)中棉麻混纺织物从染液中取出,冷水洗涤2次后,投入高压反应釜中,然后将高压反应釜密封后,200℃水热反应36h,反应结束后,冷却至室温,将织物取出,水洗2次后,在90℃,Na2CO3 2g/L,皂片2g/L,浴比1:30条件下,皂煮12min后,水洗4次,160℃焙烘90s,即可。
实施例4
(1)将纯棉织物浸入质量分数35%的NaOH水溶液中,室温下碱化1.5h,碱化结束后,水洗至洗涤液pH 8,然后在65℃烘干,备用;
(2)将上述经碱化处理的纯棉织物浸渍在质量浓度25g/L的Ce(NO3)3·6H2O溶液中,浸渍温度65℃,浸渍时间75min,浸渍结束后,轧辊轧压,轧余率95%,水洗2次,在65℃烘干,备用;
(3)将浸轧有Ce3+的纯棉织物进行还原染料隐色体染色,染色配方如下:
染色步骤:将还原染料以少量蒸馏水调成浆状,加入土耳其红油和热水,然后依次加入规定量的NaOH和保险粉,在50℃还原13min,使染料完全还原,制成隐色体染液;将染液温度升至55℃后,加入浸轧有Ce3+的纯棉织物,15min后加入1/2的元明粉,续染15min后再加入剩余1/2量的元明粉,再续染15min,染色结束;
(4)在具有聚四氟乙烯的高压反应釜中,配制质量浓度3.5g/L的30%H2O2溶液,用氨水调节溶液pH至9;将步骤(3)中纯棉织物从染液中取出,冷水洗涤2次后,投入高压反应釜中,然后将高压反应釜密封后,190℃水热反应42h,反应结束后,冷却至室温,将织物取出,水洗2次后,在90℃,Na2CO3 2g/L,皂片2g/L,浴比1:30条件下,皂煮13min后,水洗3次,165℃焙烘75s,即可。
实施例5
采用紫外线透过率测试仪测量纺织品紫外线防护系数(UPF),每块试样测试3次,取平均值。
颜色深度(K/S值)的测定:将染色织物折叠两次(四层),采用Datacolor SF600X电脑测色配色仪在λmax处测定染色织物的K/S值,每个试样测四次取平均值。
耐洗性能测试:按照AATCC加速洗涤标准洗涤20次后,测试纺织品的抗紫外性能及颜色深度。
表1织物的防紫外线效果及颜色深度
从实施例1-4的实验数据可知,本发明所得织物具有优异的抗紫外性能,且具有良好的耐洗性能,洗涤20次后,织物的UPF值仍然超过200;从实施例1与比较例1-1以及实施例2与比较例2的实验结果可知,Ce3+在还原染料隐色体染色过程中,存在明显增深作用;比较例1-2实验结果可知,还原染料隐色体染色后,纺织品再采用Ce3+水溶液水热处理,也会在纺织品表面形成少量CeO2,从而使其具有一定的抗紫外性能,但由于CeO2与纺织品结合较弱,水洗20次后,纺织品抗紫外性能大大降低。
Claims (3)
1.一种具有抗紫外功能有色纺织品的制备方法,其特征在于:具体步骤包括:
(1)将纤维素纤维织物浸入质量分数30%-50%的NaOH水溶液中,室温下碱化1-2h,碱化结束后,水洗至洗涤液pH 7-8,然后在60-80℃烘干,备用;
(2)将上述经碱化处理的纤维素纤维织物浸渍在质量浓度20-40g/L的Ce(NO3)3·6H2O溶液中,浸渍温度60-80℃,浸渍时间60-90min,浸渍结束后,轧辊轧压,轧余率80-100%,水洗2-3次,在60-80℃烘干,备用;
(3)将浸轧有Ce3+的纤维素纤维织物进行还原染料隐色体染色,染色配方如下:
染色步骤:将还原染料以少量蒸馏水调成浆状,加入土耳其红油和热水,然后依次加入规定量的NaOH和保险粉,在45-60℃还原10-15min,使染料完全还原,制成隐色体染液;将染液温度升至50-60℃后,加入浸轧有Ce3+的纤维素纤维织物,15min后加入1/2的元明粉,续染15min后再加入剩余1/2量的元明粉,再续染15min,染色结束;
(4)在具有聚四氟乙烯的高压反应釜中,配制质量浓度2.5-5.0g/L的30%H2O2溶液,用氨水调节溶液pH至9-10;将步骤(3)中纤维素纤维织物从染液中取出,冷水洗涤2次后,投入高压反应釜中,然后将高压反应釜密封后,水热反应,反应结束后,冷却至室温,将织物取出,水洗2次后,在90℃,Na2CO3 2g/L,皂片2g/L,浴比1:30条件下,皂煮10-15min后,水洗3-5次,150-170℃焙烘60-120s,即可。
2.根据权利要求1所述的一种具有抗紫外功能有色纺织品的制备方法,其特征在于:步骤(1)中所述的纤维素纤维织物为纯棉织物、纯麻织物或两者的交织物。
3.根据权利要求1所述的一种具有抗紫外功能有色纺织品的制备方法,其特征在于:步骤(4)中所述的水热反应条件为反应温度180-230℃,反应时间24-48h。
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