CN111826967B - 一种人棉织物的免烫染整工艺 - Google Patents
一种人棉织物的免烫染整工艺 Download PDFInfo
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Abstract
本申请涉及一种人棉织物的免烫染整工艺,属于染整工艺的技术领域,其包括以下工艺步骤:S1、前处理,即对坯布进行前处理,得到前处理坯布;S3、染色,即对所述步骤S1中得到的前处理坯布进行染色,得到染色坯布;S4、免烫整理,即使用免烫整理液对步骤S3中得到的染色坯布进行浸轧,得到免烫坯布;S5、后处理,即对步骤S4中得到的免烫坯布进行后处理,以得到成品坯布。本申请具有改善人棉面料容易起皱问题的效果。
Description
技术领域
本申请涉及染整工艺的领域,尤其是涉及一种人棉织物的免烫染整工艺。
背景技术
人棉是指人造棉,而人造棉是粘胶纤维的总称。粘胶纤维的基本组成是纤维素,它的原料是天然纤维,经过碱化、老化、黄化等工艺程序制成,因此粘胶纤维就是一种再生纤维素纤维,属于人造纤维。粘胶纤维是最早投入工业化生产的化学纤维之一,粘胶纤维的应用主要是用于各类服装及装饰纺织品。
如申请公布号为CN107177992A的中国发明专利申请,其公开了一种人棉机织物的染整工艺,包括人棉机织物半成品的染色预处理:将水洗好的人棉机织物半成品放置在染色预处理溶液中蒸煮,将定型好的人棉机织物半成品采用士林和雕白粉混料染料拔印,所述雕白粉和士林的质量之比为1∶1,在绳状水洗机还加入食盐和纯碱,食盐与纯碱的质量相等,将所述的染色人棉机织物放置于固色剂中,将固色后的染色人棉机织物放入1g/L的太古油水溶液中软化。
针对上述中的相关技术,发明人认为存在人棉面料由于纤维聚合度较小,而无定型区大,因此容易起皱的缺陷。
发明内容
为了改善人棉面料容易起皱的问题,本申请提供一种人棉织物的免烫染整工艺。
本申请提供的一种人棉织物的免烫染整工艺采用如下的技术方案:
一种人棉织物的免烫染整工艺,包括以下工艺步骤:
S1、前处理,即对坯布进行前处理,得到前处理坯布;
S3、染色,即对所述步骤S1中得到的前处理坯布进行染色,得到染色坯布;
S4、免烫整理,即使用免烫整理液对步骤S3中得到的染色坯布进行浸轧,得到免烫坯布;
S5、后处理,即对步骤S4中得到的免烫坯布进行后处理,以得到成品坯布。
通过采用上述技术方案,人棉织物与纯棉面料不同,由于人棉织物的纤维聚合度小,无定形区大,织物容易起皱。而通过增加免烫整理工序,对人棉织物进行免烫整理,从而提高人棉织物的抗皱性能。
优选的,所述步骤S1和所述步骤S3之间还进行了步骤S2、轧酶,所述步骤S2具体包括以下工艺步骤:
A、将所述步骤S1中得到的前处理坯布放入酶液中进行浸轧,采用二浸二轧的工艺,轧余率85-95%,浸轧温度55-60℃,随后将浸轧后的坯布在常温下堆置8-12小时,得到堆置坯布;
B、将步骤A中得到的堆置坯布进行烘干,烘干温度85-90℃,烘干时间5-6分钟;随后对烘干后的坯布进行焙烘,焙烘温度150-160℃,焙烘时间2-3分钟,得到酶处理坯布。
通过采用上述技术方案,人棉织物在日常穿着和洗涤过程中容易纤维原纤化,从而使面料起毛或起球。而通过浸轧酶液,酶液能够将织物表面的毛羽分解,从而提高织物表面的光洁度,使织物的抗起毛起球性能得到提高。
对织物进行轧酶处理,能够在织物上产生大量活性基团,从而使织物染色时更容易上染。
此外,轧酶必须在染色之前,这是由于,染色后纤维吸附了大量染料,染料形成了对纤维的保护层,从而降低了酶的处理效果。
优选的,所述酶液包括以下重量百分比的组分:
通过采用上述技术方案,使用纤维素酶对人棉织物进行处理,不但可以提高织物的外观和手感,还能使织物更加柔软。且经过纤维素酶处理后的织物纤维间空隙和毛细管扩大,那么,不论是后续染色时的染料还是免烫整理时的免烫改性液均更容易进入这些空隙和毛细管中,从而提高后续染色的效果和免烫整理的效果。
且乙酸聚醚和月桂醇聚醚均是直链醚类,两者的憎水基结构相似,从而形成协同增效,降低织物的表面张力,且聚醚作为纤维素酶的激活剂,能够增加纤维素酶的活性,从而使纤维素酶更容易进攻纤维素上的活性基团,提高纤维素酶的处理效果。
优选的,所述步骤S4免烫整理具体包括以下工艺步骤:
A、浸轧柔顺处理液,具体包括将坯布放入柔顺处理液中进行浸轧,轧余率为85-95%,随后将浸轧后的坯布进行烘干,烘干温度为90-100℃,烘干时间为2-3分钟,得到柔顺坯布;
B、浸轧免烫整理液,具体为将步骤A中得到的柔顺坯布放入免烫整理液中进行浸轧,轧余率85-95%,随后将浸轧后的坯布进行烘干,烘干温度为90-100℃,烘干时间为3-5分钟,坯布烘干后进行焙烘,焙烘温度为155-165℃,焙烘时间为2-3分钟,得到免烫坯布。
通过采用上述技术方案,采用先柔顺、再免烫处理是由于,一般来说,免烫整理会使织物的强力和柔软性下降,而柔顺处理不但能够赋予织物柔软舒适的手感和悬垂性,还能改善织物的可纺性、强力等,从而提升织物的最终性能。
而在浸轧柔顺处理液后,仅初步烘干,不进行进一步焙烘则是由于,柔顺处理液中的成分可以促进并提升免烫整理液的处理效果。若浸轧柔顺处理液后进行焙烘固化,则该促进效果将有所下降。
优选的,所述柔顺处理液包括以下重量份数比的组分:
通过采用上述技术方案,由于在柔顺处理液中加入了氨三乙酸钠,而氨三乙酸钠能够为金属离子提供四个配位键,且氨三乙酸钠的分子较小,因此,氨三乙酸钠具有较强的络合能力,以与硬水中的钙镁离子络合。而硬水中含大量钙、镁离子,钙、镁离子和硬脂酸根形成更难溶的硬脂酸钙和硬脂酸镁,此时,不但会影响最终的柔顺处理效果,还可能产生浮渣并吸附到织物上从而导致织物质量问题。
而在柔顺处理液中的加入的三乙醇胺则对纤维具有溶胀作用,从而使各类成分向纤维内部渗透和扩散,从而进一步提高柔顺处理的效果。
吡咯烷酮羧酸钠具有一定的抗菌性和抗静电性,更重要的是,吡咯烷酮羧酸钠具有良好的吸湿性和保湿性,其对于纤维同样具有软化作用,从而进一步提高织物的柔软性。
优选的,所述柔顺处理液的制备工艺具体包括以下工艺步骤:
A、按照重量份数比将1号石蜡油、硬脂酸和硬脂酸甘油酯进行混合并水浴加热,至熔融混合得混合液;
B、将水加热至沸腾,并取三分之二沸水加入所述步骤A中得到的混合液中,保持搅拌和水浴加热并加入脂肪醇聚氧乙烯醚,获得乳液;
C、按照重量份数比取三乙醇胺、氨三乙酸钠和吡咯烷酮羧酸钠,并加入剩余三分之一沸水,搅拌至所有固体溶解后再搅拌3-4小时,即得到柔顺处理液。
通过采用上述技术方案,柔顺处理液的制备必须按照顺序进行,这是由于,先将1号石蜡油、硬脂酸、硬脂酸甘油酯和脂肪醇聚氧乙烯醚进行混合可以制备得到乳液,并将酸性的硬脂酸进行包裹。再将三乙醇胺、氨三乙酸钠和吡咯烷酮羧酸钠这三种均具有一定碱性的物质与乳液进行混合,从而降低硬脂酸与这些碱性物质发生反应的可能性。
优选的,所述免烫整理液包括以下重量百分比的组分:
通过采用上述技术方案,壳聚糖具有一定抗菌效果,丁烷四羧酸和柠檬酸则能够提高织物的免烫效果,且柠檬酸的价格较低,采用丁烷四羧酸和柠檬酸复合使用可以降低生产成本。而使用壳聚糖和丁烷四羧酸进行复合整理,则不但能够使织物具有抗菌效果和免烫效果,壳聚糖的加入还能减小免烫整理过程中织物强力的损失,从而提高织物的服用性能。
此外,丁烷四羧酸和柠檬酸对织物免烫处理的原理为,两个羧基脱水形成酐,而酸酐再与织物上的羟基发生酯化交联,在此过程中,次磷酸钠作为催化剂,能够大大促进交联反应。而在柔顺处理液中含有三乙醇胺,而三乙醇胺可以促进酸酐与面料发生酯化反应,从而提高织物上丁烷四羧酸的接枝量,以提高免烫处理的效果。
另外,浸轧壳聚糖后,壳聚糖能够在织物上形成壳聚糖膜,而壳聚糖膜能够使吡咯烷酮羧酸钠更好的吸附在织物上,降低后整理过程中吡咯烷酮羧酸钠从织物上脱落的可能性,即壳聚糖与吡咯烷酮羧酸钠能够协同使织物具有更好的吸湿性、透湿率。此外,免烫整理液中的丁烷四羧酸可以作为交联剂,使壳聚糖和吡咯烷酮羧酸钠发生交联,从而使织物获得更好的吸湿、透湿性能。
三乙醇胺则能够降低柠檬酸在高温焙烘过程中的分解问题,而柠檬酸分解后会产生黄色的物质,从而使织物发黄,因此,三乙醇胺还能够降低免烫整理后织物变色发黄的可能性。
优选的,所述步骤S1具体包括以下工艺步骤:
A、烧毛,具体为采用二正二反的火口,车速100-110米/分钟,得到烧毛坯布;
B、退浆,具体为对步骤A中得到的烧毛坯布采用二浸二轧的工艺,轧余率85-90%,浸轧温度为50-60℃,浸轧液中,淀粉酶浓度5-6g/L,氯化钠浓度6-7g/L,JFC渗透剂1-2g/L,得到退浆坯布;
C、堆置,具体为对步骤B中得到的退浆坯布进行室温堆置,堆置时间为6-8小时,即得前处理坯布。
通过采用上述技术方案,对织物进行前处理能够去除织物上的各类杂质,使织物保持洁净、柔软的状态。
优选的,所述步骤S5具体包括以下工艺步骤:
A、拉幅,具体为取所述步骤S4中的免烫坯布进行拉幅操作,得到拉幅坯布;
B、定型,具体为采用定型机对所述步骤A中的拉幅坯布进行定型和烘干,得到定型坯布;
C、包装入库,具体为对所述步骤B中得到的定型坯布进行打卷,检验合格后进行包装入库。
通过采用上述技术方案,织物在前处理和染色等多道工序中经过多台设备,此时的织物往往经向拉长、纬向收缩,而织物经过拉幅、定型,能够将收缩的纬向拉开并定型,从而提高最终获得面料的尺寸稳定性。
综上所述,本申请包括以下至少一种有益技术效果:
1.通过对人棉织物进行免烫整理,能够提高人棉织物的抗皱性能,以提高人棉织物的服用性能;
2.通过限定免烫整理的工艺步骤,并限定浸轧柔顺处理液时只初步烘干而不焙烘处理,使柔顺处理液中的成分和免烫整理液中的成分可以充分相互协同增效;
3.通过限定柔顺处理液的制备工艺,降低柔顺处理液中各组分之间相互影响而导致最终处理效果下降的可能性;
4.通过限定柔顺处理液和免烫整理液的成分和配比,不但可以提高柔顺处理液本身的效果,还能通过柔顺处理液中的三乙醇胺、氨三乙酸钠和吡咯烷酮羧酸钠提高免烫整理液的处理效果,即柔顺处理液和免烫整理液之间存在协同增效的效果。
具体实施方式
以下各实施例中所使用的试剂、设备均为市场上常规采购。
实施例1
本申请实施例公开一种人棉织物的免烫染整工艺,具体包括以下工艺步骤:
S1、前处理,即对坯布进行前处理,具体包括以下工艺步骤:
A、烧毛,具体为采用二正二反的火口,车速100米/分钟,得到烧毛坯布。
B、退浆,具体为对步骤A中得到的烧毛坯布浸轧浸轧液,采用二浸二轧的工艺,轧余率90%,浸轧温度为60℃,浸轧液中,淀粉酶浓度5g/L,氯化钠浓度6g/L,JFC渗透剂1g/L,得到退浆坯布。
C、堆置,具体为对步骤B中得到的退浆坯布进行室温堆置,堆置时间为6小时,即得前处理坯布。
S2、轧酶,步骤S2具体包括以下工艺步骤:
A、将步骤S1中得到的前处理坯布放入酶液中进行浸轧,采用二浸二轧的工艺,轧余率90%,浸轧温度60℃,随后将浸轧后的坯布在常温下堆置12小时,得到堆置坯布;
B、将步骤A中得到的堆置坯布进行烘干,烘干温度85℃,烘干时间6分钟;随后对烘干后的坯布进行焙烘,焙烘温度160℃,焙烘时间2分钟,得到酶处理坯布。
轧酶工序中的酶液具体包括以下重量百分比的组分:
S3、染色,即对步骤S2中得到的酶处理坯布进行染色,得到染色坯布。
S4、免烫整理,即使用免烫整理液对步骤S3中得到的染色坯布进行浸轧,免烫整理具体包括以下工艺步骤:
A、浸轧柔顺处理液,具体包括将坯布放入柔顺处理液中进行浸轧,轧余率为90%,随后将浸轧后的坯布进行烘干,烘干温度为100℃,烘干时间为2分钟,得到柔顺坯布;
B、浸轧免烫整理液,具体为将步骤A中得到的柔顺坯布放入免烫整理液中进行浸轧,轧余率90%,随后将浸轧后的坯布进行烘干,烘干温度为100℃,烘干时间为3分钟,坯布烘干后进行焙烘,焙烘温度为165℃,焙烘时间为2分钟,得到免烫坯布。
步骤A中所用柔顺处理液具体包括以下重量份数比的组分:
且柔顺处理液的制备工艺具体包括以下工艺步骤:
A、按照重量份数比将1号石蜡油、硬脂酸和硬脂酸甘油酯进行混合并水浴加热,至熔融混合得混合液;
B、将水加热至沸腾,并取三分之二沸水加入所述步骤A中得到的混合液中,保持搅拌和水浴加热并加入脂肪醇聚氧乙烯醚,获得乳液;
C、按照重量份数比取三乙醇胺、氨三乙酸钠和吡咯烷酮羧酸钠,并加入剩余三分之一沸水,搅拌至所有固体溶解后再搅拌4小时,即得到柔顺处理液。
而步骤B中所用免烫整理液则具体包括以下重量百分比的组分:
S5、后处理,即对步骤S4中得到的免烫坯布进行后处理,具体包括以下工艺步骤:
A、拉幅,具体为取步骤S4中的免烫坯布进行拉幅操作,得到拉幅坯布;
B、定型,具体为采用定型机对步骤A中的拉幅坯布进行定型和烘干,得到定型坯布;
C、包装入库,具体为对步骤B中得到的定型坯布进行打卷,检验合格后进行包装入库,即得成品坯布。
实施例2与实施例1的区别在于,并未进行步骤S2、轧酶,而是直接对步骤S1中得到的前处理坯布进行染色。
实施例3-7与实施例1的区别在于,步骤S1中前处理工序的各项工艺参数计为下表:
实施例8-12与实施例1的区别在于,步骤S2中轧酶工序的各项工艺参数计为下表:
实施例13-17与实施例1的区别在于,酶液中各组分的重量百分比计为下表:
实施例18-22与实施例1的区别在于,步骤S4中免烫整理的各项工艺参数计为下表:
实施例23-27与实施例1的区别在于,柔顺处理液中各组分的重量份数比计为下表:
实施例28与实施例1的区别在于,在制备柔顺处理液时,步骤C中搅拌至所有固体溶解后再搅拌4小时。
实施例29-33与实施例1的区别在于,免烫整理液中各组分的重量百分比计为下表:
对比例:
对比例1与实施例2的区别在于,未对人棉织物进行免烫整理,仅进行了前处理、染色和后处理。
对比例2与实施例1的区别在于,步骤S4中并未进行步骤A,即并未浸轧柔顺处理液,而是直接对步骤S3中得到的染色坯布进行免烫整理液的浸轧。
对比例3与实施例1的区别在于,柔顺处理液中不添加三乙醇胺。
对比例4与实施例1的区别在于,柔顺处理液中不添加吡咯烷酮羧酸钠。
检测方法:
折皱回复角按AATCC 66—2008测试方法,用M003A折皱回复角测试仪测定。
断裂强力按ISO 13934.1—1999测试方法,用H10KS万能材料试验机测定。
织物吸湿率的测试方法为,将试样在烘箱中烘干至恒重,称得重量为W0,随后在90%湿度下放置24小时,取出称得重量为W1,吸湿率计算公式为:
吸湿率=(W1-W0)/W0*100%。
织物透湿性按照GB/T 12704-1991《织物透湿量测定方法透湿杯法中的方法B蒸发法测定》。
检测结果计为下表:
结论:
通过对比实施例1和实施例2数据可以得出,由于实施例2中并未对织物进行轧酶,而轧酶能够使纤维间的空隙和毛细管扩大,因此,未经轧酶处理的织物透湿性和吸湿性都有所下降。且由于后续各处理液均不易于进入纤维间,因此,织物的折皱回复角也有所下降,而织物的断裂强力则有较大程度的提升。
通过对比实施例2和对比例1数据可以得出,即使不对织物进行轧酶处理,仅仅对织物进行免烫整理,织物的折皱回复角、吸湿率和透湿率等都有较大提升。
通过对比实施例1和对比例2的数据可以得出,由于浸轧免烫整理液之前没有对织物浸轧柔顺处理液,导致织物的折皱回复角、吸湿率和透湿率都有较为明显的下降。这是由于,
1、柔顺处理液中能够溶胀纤维的三乙醇胺未添加,因此各处理液均不易于进入纤维间,导致各项性能均有所下降。且三乙醇胺促进丁烷四羧酸与纤维酯化交联的协同增效效果也消失,体现为织物的折皱回复角有较大程度下降。
2、柔顺处理液中能够显著提高织物吸湿能力的吡咯烷酮酸钠未添加,因此,织物的吸湿率和透湿率有较明显的下降,但是相较于未做任何处理的对比例1,织物的吸湿率和透湿率有所提高,这是由于免烫整理液中的壳聚糖具有一定的吸湿作用。
通过对比实施例1和对比例3的数据可以得出,由于柔顺处理液中没有添加三乙醇胺,导致各处理液不能很好的进入纤维间,因此,织物的吸湿率和透湿率有少量下降。而由于三乙醇胺促进丁烷四羧酸与纤维酯化交联的协同增效效果也消失,因此,织物的折皱回复角有较大程度下降。
通过对比实施例1和对比例4的数据可以得出,由于柔顺处理液中没有添加吡咯烷酮羧酸钠,则不但吡咯烷酮羧酸钠本身对织物吸湿能力提高的效果消失,且吡咯烷酮羧酸钠与壳聚糖协同提高织物吸湿能力的效果也消失,体现为织物的吸湿率和透湿率有较大幅度下降。
以上均为本申请的较佳实施例,并非依此限制本申请的保护范围,故:凡依本申请的结构、形状、原理所做的等效变化,均应涵盖于本申请的保护范围之内。
Claims (4)
1.一种人棉织物的免烫染整工艺,其特征在于:以下工艺步骤:
S1、前处理,即对坯布进行前处理,得到前处理坯布;
S2、轧酶,具体包括以下工艺步骤:
A、将所述步骤 S1 中得到的前处理坯布放入酶液中进行浸轧,采用二浸二轧的工艺,轧余率85-95%,浸轧温度 55-60℃,随后将浸轧后的坯布在常温下堆置8-12小时,得到堆置坯布;
B、将步骤A中得到的堆置坯布进行烘干,烘干温度85-90℃,烘干时间5-6 分钟;随后对烘干后的坯布进行焙烘,焙烘温度150-160℃,焙烘时间2-3 分钟,得到酶处理坯布;
S3、染色,即对所述步骤S1中得到的前处理坯布进行染色,得到染色坯布;
S4、免烫整理,即使用免烫整理液对步骤S3中得到的染色坯布进行浸轧,得到免烫坯布;
S5、后处理,即对步骤S4中得到的免烫坯布进行后处理,以得到成品坯布;
所述步骤 S4 免烫整理具体包括以下工艺步骤:
A-1、浸轧柔顺处理液,具体包括将坯布放入柔顺处理液中进行浸轧,轧余率为85-95%,随后将浸轧后的坯布进行烘干,烘干温度为90-100℃,烘干时间为2-3 分钟,得到柔顺坯布;
B-1、浸轧免烫整理液,具体为将步骤A中得到的柔顺坯布放入免烫整理液中进行浸轧,轧余率85-95%,随后将浸轧后的坯布进行烘干,烘干温度为90-100℃,烘干时间为3-5分钟,坯布烘干后进行焙烘,焙烘温度为155-165℃,焙烘时间为2-3分钟,得到免烫坯布;
所述柔顺处理液包括以下重量份数比的组分:
1号石蜡油 8-10 份;
硬脂酸 0.8-1.2 份;
硬脂酸甘油酯 0.8-1.2 份;
脂肪醇聚氧乙烯醚 0.1-0.2 份;
三乙醇胺 1-1.5 份;
氨三乙酸钠 1-2 份;
吡咯烷酮羧酸钠 3-5 份;
水 100-120 份;
所述柔顺处理液的制备工艺具体包括以下工艺步骤:
A-2、按照重量份数比将1号石蜡油、硬脂酸和硬脂酸甘油酯进行混合并水浴加热,至熔融混合得混合液;
B-2、将水加热至沸腾,并取三分之二沸水加入所述步骤A-2中得到的混合液中,保持搅拌和水浴加热并加入脂肪醇聚氧乙烯醚,获得乳液;
C-2、按照重量份数比取三乙醇胺、氨三乙酸钠和吡咯烷酮羧酸钠,并加入剩余三分之一沸水,搅拌至所有固体溶解后再搅拌3-4小时,即得到柔顺处理液;
所述免烫整理液包括以下重量百分比的组分:
丁烷四羧酸 4-8%;
柠檬酸 1-2%;
壳聚糖 0.1-0.5%;
次磷酸钠 1-2%;
水余量。
2.根据权利要求1所述的一种人棉织物的免烫染整工艺,其特征在于:步骤 S2中,所述酶液包括以下重量百分比的组分:
纤维素酶 2-3%;
乙酸聚醚 0.5-1%;
月桂醇聚醚 0.5-1%;
水余量。
3.根据权利要求1-2任一所述的一种人棉织物的免烫染整工艺,其特征在于:所述步骤S1具体包括以下工艺步骤:
A、烧毛,具体为采用二正二反的火口,车速100-110 米/分钟,得到烧毛坯布;
B、退浆,具体为对步骤A中得到的烧毛坯布采用二浸二轧的工艺,轧余率85-90%,浸轧温度为50-60℃,浸轧液中,淀粉酶浓度5-6g/L,氯化钠浓度 6-7g/L, JFC 渗透剂1-2g/L,得到退浆坯布;
C、堆置,具体为对步骤B中得到的退浆坯布进行室温堆置,堆置时间为6-8 小时,即得前处理坯布。
4.根据权利要求1-2任一所述的一种人棉织物的免烫染整工艺,其特征在于:所述步骤S5 具体包括以下工艺步骤:
A、拉幅,具体为取所述步骤 S4 中的免烫坯布进行拉幅操作,得到拉幅坯布; B、定型,具体为采用定型机对所述步骤A中的拉幅坯布进行定型和烘干,得到定型坯布;
C、包装入库,具体为对所述步骤B中得到的定型坯布进行打卷,检验合格后进行包装入库,即得成品坯布。
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