CN114341425A - 包括使用纯化合成食品染料的动物纺织纤维染色工艺 - Google Patents
包括使用纯化合成食品染料的动物纺织纤维染色工艺 Download PDFInfo
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Abstract
描述了用于将由动物纤维组成的纺织材料、产品或制品染色的纺织品染色工艺,其包括以下步骤:将所述纺织材料、产品或制品浸入包含至少一种洗涤剂物质、润湿物质、匀染物质和酸度调节剂的染色浴液中;向染色浴液中添加批准用于食品用途的着色物质;使经染色的纺织材料、产品或制品经受洗涤;以及最后使经染色的纺织材料、产品或制品经受固色处理。
Description
技术领域
本发明总体上涉及用于处理纺织产品和/或制品的方法和工艺的领域,并且更具体地涉及用于将由动物毛组成的纤维和织物染色的纺织工艺,特别是用于将羊毛染色的纺织工艺,其中使用已用于食品和制药行业的纯化合成染料。
背景技术
纱线和纺织制品的染色通常是起源非常古老的做法。出于织物染色目的而开发的工艺的数量非常多,并且每种工艺的细节取决于纱线的类型、染料以及在作为地方传统的典型的工艺的情况下还有地理区域。
纺织纤维基本上由两种类型(天然纤维和合成纤维)组成;天然纤维可以进而细分为植物纤维(棉、亚麻、大麻……)和动物纤维(主要是羊毛和蚕丝)。可应用的染色工艺的类型、可进行染色的织物的生产阶段以及还有所获得的结果根据纤维类型并且特别是其化学组成而变化。
例如,合成纤维可以是经大量染色的,即在纤维生产之前已经在材料(聚酯、聚酰胺、聚丙烯酸酯……)仍然是熔融物质的阶段中进行;此程序产生最具耐受性的着色,但显然它不可适用于天然纤维,天然纤维可以例如“在松散纤维中”(即,处于在加捻前(twisting)的游离纤维水平)、“在纱线中”(在已经纺制的纤维上)或“在物件中”(在最终织物上)进行染色。
植物纤维基本上由纤维素构成,纤维素在棉中几乎是纯的并且与其他纤维中的组分(诸如木质素和果胶)混合。纤维素纤维的着色相对简单,特别是当纤维(游离的或已织造的)经受称为“丝光化”的制备工艺时,所述“丝光化”的制备工艺由以下组成:将纤维用苛性碱溶液(碳酸钠或更常见的氢氧化钠)处理。
相反,在动物纤维、特别是羊毛的情况下,丝光化处理是不可能的,动物纤维如果经受这种处理,则将经受被称为毡化的效应,同时其功能和美学品质会降低。在动物纤维中,羊毛仍继续被广泛使用,并且对于制造多种多样的纺织产品和制品来说其本身在特征和性能方面表现为无与伦比的纤维。与植物纤维不同,这些纤维是基于蛋白质的,并且通常比植物纤维更难着色;特别地,在这些纤维上更难获得高的对洗涤或曝光的颜色耐受性;织物上的颜色耐受性在所述领域中以术语“牢度”而所知。
因此,明显的是,可着色纺织纤维的方法和化合物因纤维而异。事实上,取决于纤维的化学性质,在纤维表面与染料分子之间形成的化学键的类型有所变化,并且以类似的方式可以改变化学工艺和所述工艺的助剂(固定剂、媒染剂……)。
就使用于纺织染色领域中的染料而言,它们属于宽范围的化合物,所述化合物通常是有害和危险的化学化合物,并且在安装使用它们的纺织品染色装置的区域中造成严重且不易解决的环境污染问题。因此,所述染料以及含有它们的纺织工艺的残余物和废物通常在其使用后必须根据适当的程序进行处理和处置,结果显著增加工艺成本。同样感到需要的是,使用于纺织领域中的染料也是无毒且无刺激性的,以避免染色的纺织产品和物品一旦用旧就可能产生皮肤过敏或刺激或由于在通过皮肤本身吸收的情况下的积累而引起的次生效应的问题。
为了应对所述安全性和生态可持续性需求,近年来已在全球范围内制定了协议并且在全球范围内定义了标准,其对污染、有毒或致癌物质的使用设定了极限。在这些标准中,最重要的标准是GB 18401-2010(自2012年生效),其同时设定了工艺中使用的某些组分(特别是甲醛)的最低牢度极限和最高水平;2017全球有机纺织标准5.0(GOTS 5.0);以及来自最近的ZDHC(危险化学品零排放)方案的要求。
这些考虑限制了针对每种特定纺织应用的染料选择自由。
较大的环境可持续性和当前处理和处置污染性着色物质的重要成本的显著降低在羊毛染色领域(以纱线、织物或成品服装制品的形式)中考虑到其在纺织行业中具有的重要性而感到是特别需要的。
考虑到上面提及的需求,近年来,纺织染色界已转向评估天然来源的着色物质的使用。
使用天然染料染色纺织纤维是多个专利出版物的目的。
专利申请CN 104988711 A描述了使用从红高粱中提取的颜料将芳族聚酰胺纤维(聚酰胺类型的合成纤维)着色;所描述的程序需要在气态等离子体中预处理纤维以进行表面的功能化。
专利申请CN 109652998 A、CN 104988713 A和CN 109577031 A涉及使用从天然物质中提取的颜料,特别是从同名昆虫的甲壳中获得的胭脂虫红或从各种植物中提取的颜料将棉着色;所述申请中的第二个提供了在等离子体中预处理棉纤维。
如上所提及,动物纤维并且特别是羊毛的着色需要使用的工艺和试剂与用于合成纤维或植物纤维中的不同。
多个文献中描述了用天然颜料将所述纤维着色。
专利申请CN 107558261 A报道了用相对复杂的体系将羊毛着色,所述体系使用从石榴皮中提取的颜料混合物作为染料,通过虫胶稳定在纤维上,所述虫胶通过与来自城市或工业废物的污水污泥接触发酵而改性。污泥中存在的金属离子在改性虫胶内形成络合物并且有助于固色,而虫胶形成改善其牢度的保护和抗氧化层。然而,所述文献的着色体系相对复杂,并且还不保证对其中所含组分(特别是金属离子)的控制,并且因此不保证如此着色的羊毛不刺激皮肤的事实。
专利申请CN 105088831 A描述了使用虫胶红将羊毛着色。在此文献的方法中,使用甲醛预处理羊毛,并且使用基于金属的媒染剂(硫酸铝);甲醛是被GOTS 5.0标准禁止使用的化合物,因为其致突变和致癌的潜在特性现已得到明确确定。
专利申请CN 108560284 A描述了使用从石榴皮中提取的天然颜料,使用氯化钕或明矾作为媒染剂,将丝光化羊毛-棉混织物着色。
最后,专利申请CN 104894890 A描述了使用叶黄素将羊毛或蚕丝着色,叶黄素提取自植物或花卉,诸如菠菜、胡萝卜和万寿菊。
这些从植物中提取的天然染料导致非最优牢度;诸位发明人相信这是由于天然提取物中所含物质的着色工艺中的干扰,但不是为纺织材料提供颜色的一种或多种化合物(颜料)。此外,上面报道的现有技术的羊毛(或纤维或含羊毛织物)用染料均给出了在黄色、橙色与红色之间变化的颜色(取决于染料、浓度和其他参数,诸如着色浴液中的pH),并且因此不可能用它们获得纺织行业中所需的全部颜色范围。最后,几乎所有描述的着色工艺都使用基于金属的媒染剂,其在与皮肤延长接触后可能引起过敏现象。因此,现有技术的工艺都不能满足最近国际上批准的关于纺织行业的工艺的生态相容性的所有标准,即GOTS5.0、GB 18401-2010和ZDHC。
本发明的目的是提供通过使用用于食品用途的合成来源的纯化着色物质将由动物毛形成的纤维着色,并且具体是将羊毛着色的染色工艺。这些染料响应了由国家或超国家当局(诸如美国的FDA和欧洲的欧洲食品安全局,后者情况经由“Directive on Colors”94/36/EC)制定的严格监管特征;因此,它们在克服从生态可持续性的角度上现有技术染料的缺点、降低由已知染色处理呈现出的污染风险(以及避免这些风险所需的安装成本)、提供与皮肤和唾液接触均无毒且低过敏性的产品以及满足市场上天然染料无法满足的牢度要求方面没有问题。
发明内容
前述目的通过将由动物纤维组成的纺织材料、产品或制品染色并且具体是将羊毛染色的工艺来实现,所述工艺包括使用批准用于食品行业的合成着色物质将所述纺织材料、产品或制品着色的操作。
更详细地,本发明涉及用于将由动物毛组成的纺织材料、产品或制品染色的工艺,其包括以下步骤:
1)将所述纺织材料、产品或制品浸入温度在20℃与30℃之间的基于水的染色浴液中,持续在5分钟与15分钟之间的时间段,所述浴液至少包含:
-洗涤剂物质;
-润湿物质;
-匀染物质;
-酸度调节剂;
2)向步骤1的染色浴液中添加批准用于食品行业的合成着色物质,在50分钟与80分钟之间的时间内使所述浴液达到80℃与120℃之间的温度,将其在此温度下放置在30分钟与90分钟之间的时间,并且最后在10分钟与30分钟之间的时间内将所述浴液冷却至在60℃与80℃之间的温度;
3)将浴液排干,并且使在先前段落中染色的纺织材料、产品或制品在同一机器中经受温度在35℃与55℃之间下的第一洗涤,持续在5分钟与15分钟之间的时间;
4)将第一洗涤的浴液排干,并且使所述纺织材料、产品或制品在同一机器中经受在水中温度在20℃与35℃之间的第二洗涤,持续在2分钟与10分钟之间的时间,或在乙酸钠水溶液中在50℃下的第二洗涤,持续在2分钟与10分钟之间的时间;
5)将第二洗涤的浴液排干,并且使所述纺织材料、产品或制品在含有百分比为1%与6%之间(相对于所述纺织材料、产品或制品的初始重量)的固定物质的浴液中经受温度在20℃与60℃之间并且pH在4.5与6.5之间的固色处理,持续在5分钟与30分钟之间的时间;
6)将所述浴液排干,并且使所述纺织材料、产品或制品经受干燥。
符合本发明的纺织染色工艺的特定实施方案还由从属权利要求限定。
附图说明
图1再现了示意性地表示本发明的特征性纺织品染色工艺的时间图。
具体实施方式
在本发明的纺织品染色工艺的以下描述中,对相应和特定实施方案和/或应用的提及不排除关于此实施方案和应用所描述的特定配置、结构或特征也可以包括在所述工艺的其他实施方案和应用中,其中出于简洁的原因没有对其进行描述。这意味着本发明染色工艺的特定配置和/或特征可以以任何合适且连贯的方式组合在一个或多个实施方案和应用中。
本发明的工艺应用于由动物纤维形成的纺织纤维。由诸位发明人进行的研究已显示,本发明的工艺对于例如蚕丝染色无效,即使此纱线又是动物来源的。这一观察结果证实了之前所说的,即并非所有工艺以及并非所有物质都适用于所有纤维的着色,并且已知用于某些纤维的染料(例如,在植物纤维诸如棉上)不一定可用于源自动物毛、特别是羊毛的纤维的着色。
在正文和权利要求的其余部分中,采用以下约定和定义:
-“合成食品色素”意指通过化学合成制成,并且通常在食品行业中用于着色食物和饮料的染料;
-“纺织产品”意指动物纺织纤维,特别是羊毛,或由所述纤维制成的任何制品,因此松散纤维、纱线中的纤维、用纱线制成的织物、或用所述纱线或织物制成的成品服装物品;
-所述工艺中使用的各种组分的所有百分比均应理解为相对于有待着色的纺织产品的初始重量的重量;
-最后,将给出本发明工艺中使用的所有物质的确切化学名称和/或商业名称;另外,为了提供尽可能完整且准确的信息,还指示了所用物质的CAS(化学文摘服务)注册号。
本发明的纺织品染色工艺包括第一部分,下文也指示为BT部分,其中将有待染色的纺织产品浸入染色浴液中并且处理;以及第二部分,下文也指示为TF部分,其中使纺织产品经受整理(finishing)处理。所述工艺的浴液是基于水的,即纺织产品浸入其中并且溶解执行各个步骤功能的化合物(洗涤剂、润湿剂、染料……)的液相是水。
本发明工艺的所有步骤均在搅拌下进行。在所述工艺中使用的产品通常溶解在单独的罐中的水中,并且借助循环泵送至染色机,所述循环泵在整个工艺中将浴液保持在搅拌状态下。
所述工艺的所有步骤均在水中进行,其中水与有待染色的纺织产品之间的重量比可以在10:1与40:1之间变化;这些水量足以完全溶解在所述工艺中使用的所有化学化合物(洗涤剂、润湿剂、染料……)。
本发明的工艺包括预备步骤(在下文中也称为步骤0),其包括将有待着色的纺织产品浸入水中,在20℃与30℃之间的温度下持续5分钟与10分钟之间的时间。此预备步骤的目的是用水完全浸渍纤维,使得随后添加的浴液的组分可以有效且快速地与纺织纤维接触。
实际过程(BT部分)以步骤1开始,其中将温度维持在20℃与30℃之间,将至少一种洗涤剂物质、润湿物质、匀染物质和酸度调节剂添加到浴液中。所述物质主要具有制备用于将纺织产品染色的浴液的功能;所述物质以及它们对纤维的作用是本领域技术人员已知的,并且至少包括:
-洗涤剂物质(其也充当乳化剂),所述洗涤剂物质具有清洁纺织产品的功能以便使其准备用于在同一染色浴液中染色;所述洗涤剂物质可以是例如2,2-二甲基-1,3-丙二醇(CAS编号126-30-7);
-润湿物质,所述润湿物质具有将纺织产品脱气的功能;所述润湿物质可以是例如聚乙二醇-10丙基醚(通式(C2H4O)nC10H22O,CAS编号160875-66-1)、石油馏出物(CAS编号64742-47-8)、十一烷醇乙氧基化物(CAS编号127036-24-2)、或2-甲基-3(2H)-异噻唑酮和5-氯-2-甲基-3(2H)-异噻唑酮的混合物(CAS编号55965-84-9);
-匀染物质,所述匀染物质具有匀染纺织产品特征的功能,以便使其准备用于染色均匀;所述匀染物质可以是例如5-磺基水杨酸(CAS编号97-05-2)、聚乙氧基化动物脂胺(CAS编号61791-26-2)、聚乙氧基化动物脂胺与硫酸二乙酯的季盐(CAS编号68071-95-4)、或C16-C18乙氧基化不饱和醇混合物(CAS编号68920-66-1);以及
-酸度调节剂,所述酸度调节剂由柠檬酸(CAS编号77-92-2)和5-磺基水杨酸(CAS编号97-05-2)的混合物组成,其具有在处理过程中维持pH恒定的功能;柠檬酸与5-磺基水杨酸之间的重量比可以在4:1与9:1之间变化。
下表总结了在步骤1中在染色浴液中添加的物质,并且示出了浴液中所述物质相对于有待染色的纺织产品的重量的指示百分比。
物质 | 百分比(%) |
洗涤剂 | 1 |
润湿剂 | 1 |
匀染剂 | 1-2 |
pH调节剂 | 10-30 |
所述工艺的步骤1持续5分钟至15分钟。
在所述工艺的变体中,润湿物质可以在上述步骤0中添加,或者部分在步骤0中添加并且剩余部分在步骤1中添加。
随后,根据本发明染色工艺的突出特征,在所述工艺的步骤2开始时,将纯化合成食品色素添加到染色浴液中。可用于本发明的用于食品用途的合成着色物质在下表中示出,其中指示了每种物质的化学名称或商品名称、CAS编号、欧盟对其指定的代码(当可获得时)和物质赋予纺织产品的颜色:
所述每种着色物质可以单独使用,或者有可能使用这些物质中的两种或更多种的混合物以获得颜色的特定暗调(shade);既在单一物质的情况下也在这些着色物质中的两种或更多种的混合物的情况下,此组分在染色浴液中的百分比可以在0.001%与6%之间变化。在此范围内,根据所希望的结果(例如,要获得的颜色强度或灰调(tone)),可以使用此领域专家已知的方法和技术来确定有待使用的实际量。
例如,通过普通的实验室纺织品染色机,有可能制备所述合成食品色素的多个配方,即具有不同百分比(即使微小)的多个染色浴液,并且然后测试它们以验证其对有待染色的纺织产品的真实效果,从而选择具有关于纺织产品的染色提供最佳结果的合成食品着色物质百分比的配方或染色浴液。
在与将希望百分比的合成食品色素引入染色浴液中的同时,使后者的温度在50分钟与80分钟之间(优选70分钟)的时间内,从初始温度(例如,30℃)逐渐升高至在80℃与120℃之间的温度,优选约100℃。在达到所希望的温度后,将浴液在此温度下静置在30分钟与90分钟之间(优选60分钟)的时间,并且最后,将其冷却至在60℃与80℃之间(优选至70℃)的温度;冷却通常需要在10分钟与30分钟之间的时间,典型地约15分钟。
在染色浴液中处理和染色后,使纺织产品经受整理处理,整体用TF指示,其包括多种步骤和干预。此部分可以在BT部分结束后立即或稍后开始。
特别地,在冷却的情况下,染色浴液达到70℃后,将浴液排干以进行经染色的纺织产品在水中的第一洗涤,对应于本发明工艺的步骤3。所述第一洗涤优选在进行染色的同一机器中,在35℃与55℃之间(优选40℃)的温度下进行,持续5分钟与15分钟之间(优选10分钟)的时间,此后将第一洗涤的浴液从机器中排干。
然后,使纺织产品优选在第一洗涤的同一机器中经受第二洗涤,对应于本发明工艺的步骤4;所述洗涤可以在水中在20℃与35℃之间(优选30℃)的温度下进行,持续2分钟与10分钟之间(优选5分钟)的时间;可替代地,第二洗涤可以在含有按重量计5%(相对于纺织产品)的乙酸钠水溶液中,在50℃的温度下进行,持续2分钟与10分钟之间的时间,优选5分钟。此步骤结束后,将第二洗涤的浴液从机器中排干。
在本发明方法的步骤5中,使经染色的纺织产品经受固色处理。所述处理包括将纺织产品(在洗涤浴液的同一机器中或在另一个机器中)浸入含有百分比为按重量计在1%与6%之间(相对于初始纺织产品)的固定物质的浴液中,在20℃与60℃之间(优选40℃)的温度下,在4.5与6.5之间(优选5.5)的pH下,持续在5分钟与30分钟之间的时间,优选20分钟。此处理具有增加湿牢度、纺织产品的抗起球性以及还有赋予最终纺织产品斥水性的功能。可替代地,如果纺织产品是织物,则固定物质可以以“浸轧(foulard)模式”(浸渍、然后挤压和干燥)来施用;或者通过喷雾分布,当有待处理的纺织产品是已为成品的服装物品时特别适用。固定物质是二乙二醇、二氧化硅在水中的5%悬浮液或其混合物。具有希望浓度的硅胶可以通过将称为“纳米二氧化硅”、“胶体二氧化硅”或“气相二氧化硅”的产品悬浮在水中来产生;所述形式的二氧化硅可广泛商购并且例如由埃森(德国)的Evonik ResourceEfficiency GmbH公司以名称出售或由马萨诸塞州波士顿(美国)的CabotCorporation of Boston公司以名称出售。
在固定处理结束时,在所述工艺的步骤6中,将浴液排干,并且鉴于任何后续处理将纺织产品送至干燥。
图1表示示意性地示出根据本发明的典型染色工艺的时间/温度曲线的时间图,其作为举例报道。如图所示,所述工艺由以下组成:第一BT部分(其中将纺织产品着色)和第二TF部分(整理处理,其中将颜色固定)。所述工艺的每个步骤(包括预备步骤0)在图的下部(靠近时间轴)用相应的数字指示。
在图1实施例的工艺中,预备步骤0(将纺织产品用水浸渍)和步骤1(添加洗涤剂、润湿剂、匀染剂和酸度调节剂)均在30℃下进行,各自持续时间为5分钟。实际染色步骤2,以向浴液中添加所选染料开始,包括第一部分:在70分钟内使温度从30℃升高至100℃,将含有纺织产品的浴液在100℃下保持60分钟,在15分钟内从100℃冷却至70℃,并且随后冷却至在室温附近的温度。
所述工艺的BT部分结束与TF部分开始之间不存在固定的时间关系:这种情况由所述工艺的这两个部分之间的断裂时间轴表示。
所述工艺的TF部分在此部分的零分钟开始,步骤3(第一洗涤)在40℃下进行10分钟的时间,然后步骤4(第二洗涤)在30℃下进行5分钟,并且随后固色步骤5在40℃下进行20分钟。步骤6(来自最后一个浴液和随后的操作的成品纺织产品的排干)没有精确的温度和持续时间。
如所述,图1表示的仅是本发明工艺的一个可能的实施例;对本领域技术人员来说显而易见的是,图中表示的和下面详细描述的每个步骤均可以在与图中指示的温度或持续时间不同的温度或持续时间下进行,条件是这些温度和持续时间落入先前报告的范围内;特别地,保持在所述区间内,进行所述工艺的每个步骤的温度越高,其持续时间通常将越短,并且反之亦然。
本发明的工艺还可以允许相对于目前已经描述和说明的内容的其他变化、修改和改进。
例如,在不影响已用于食品领域的纯化合成染料用于制备BT染色浴液的用途(所述用途对应于本发明的突出特征)的情况下,包含在BT染色浴液中并且用于纺织产品的TF整理处理的其他常规物质可以相对于先前关于染色工艺描述和说明的那些,特别是根据纺织产品一旦染色就必须满足的特定特征而变化。
本发明将通过以下实施例进一步说明。
实施例1
根据本发明的工艺和根据非本发明的工艺将六个羊毛织物样品着色。在制备1A、1B、2A和2B中获得的样品用不满足本发明条件的工艺生产,因此是对比样品;而样品1C和2C是根据本发明工艺获得的样品。
为了允许比较结果,在制备工艺中采用的热特征曲线(温度/时间)对于所有六个样品均相同,并且对应于以上参考图1所述的热特征曲线。对于这六个样品,在所述工艺的各个步骤中采用的组分在表1中示出。除了由其化学式SiO2指示的二氧化硅外,每个测试中使用的组分均用CAS编号标识。硫酸钠和甲酸用于对比测试,因为它们是现有技术染色浴液的典型组分。对于所使用的每种组分,下表示出了使用量(基于着色羊毛织物样品的重量,按重量计%)。
表1
实施例2
使在实施例1中获得的六个样品经受根据UNI EN ISO 105-E04标准测试的颜色释放测试,这是通过GB 18401标准的最严格和选择性测试;根据此标准,所述测试模拟织物在碱性汗液的存在下的颜色释放(碱性汗液是用专门出售用于进行所述测试的碱性溶液模拟的)。
所述测试通过以下方式进行:将每个样品用稀释的苏打溶液浸渍,然后将样品置于与“见证者织物(witness fabric)”接触,所述见证者织物即为用六种不同材料(醋酸纤维、棉、聚酰胺纤维、聚酯纤维、腈纶和羊毛)制成的织物条,并且通过从被检样品中的释放来评估由见证者的各个部分获取的颜色的强度;见证者的沾染的强度越大,从被检组织中的释放就越大,并且因此认为结果就越差。所述值以灰色标度报告,并且值在1与5之间变化,其中值越低,牢度就越差。GB 18401接受3-4作为最小染料褪色值。
对六个样品1A、1B、1C、2A、2B和2C进行的测试的结果在表2中示出。
表2
见证者织物 | 1A | 1B | 1C | 2A | 2B | 2C |
醋酸纤维 | 4-5 | 4-5 | 5 | 4-5 | 4-5 | 5 |
棉 | 2 | 2 | 5 | 1-2 | 1-2 | 5 |
聚酰胺纤维 | 2 | 2 | 4 | 2-3 | 2-3 | 4-5 |
聚酯纤维 | 4 | 4 | 5 | 4 | 4 | 5 |
腈纶 | 4 | 4 | 5 | 4 | 4 | 5 |
羊毛 | 2 | 2 | 3-4 | 2 | 2 | 4 |
从表2中报告的测试结果可以推断,在纺织品领域中应用于蛋白质纤维染色的用于食品用途的纯化合成染料,如果用已知工艺使用(样品1B和2B),则将仅具有与相同的未纯化染料(样品1A和2A)相比是生态可持续的优点;另一方面,如果用本发明的工艺使用(样品1C和2C),则除了生态可持续性之外,用于食品用途的纯化合成染料还允许获得优异的湿色牢度。
注释
本发明的新纺织品染色工艺,其使用批准用于食品行业的纯化合成染料,允许完全实现所设定的目的,并且特别是既提供了一种新的能够消除与在常规纺织品染色中使用合成染料和天然染料相关的所有负面作用的纺织品染色工艺,而且还提供了通常且目前用于食品行业的合成来源的纯化染料的新且创新的用途。
此工艺提供了一系列相关且独特的优点,其中一些已在上面进行了说明,其中可以提及以下优点:
-在纺织品染色工艺中使用的染料是合成的但经纯化,对管理纺织品染色工艺的操作者和工人以及使用所述染料的装置没有任何毒性或危害性;
-特别地,所使用的纯化合成染料不含金属,不含致敏物质,不致突变,并且相应的粉末不含任何类型的游离胺或对必须处理所述染料的操作者的健康有害的其他物质;
-所述工艺允许显著降低处理和处置由纺织品染色产生的残留物和废物的成本,因为所使用的染料无污染性物质;
-纺织品染色装置的工作条件更好且更健康;
-纺织产品和/或制品的染色成本与常规纺织品染色工艺(即,使用常规染料)的染色成本相比具有竞争力;
-用本发明工艺着色的纺织产品符合GB18401、GOTS 5.0标准和ZDHC方案的要求。
Claims (11)
1.一种用于将由动物毛组成的纤维和织物的纺织材料、产品或制品染色的纺织品染色工艺,其特征在于,通过使用批准用于食品行业的合成着色物质来进行所述纺织材料、产品或制品着色的操作。
2.根据权利要求1所述的工艺,其包括以下步骤,其中步骤1)至5)在搅拌下进行:
1)将所述纺织材料、产品或制品浸入温度在20℃与30℃之间的基于水的染色浴液中,
持续在5分钟与15分钟之间的时间段,所述浴液至少包含:
-洗涤剂物质;
-润湿物质;
-匀染物质;
-酸度调节剂;
2)向步骤1的染色浴液中添加一种或多种批准用于食品行业的合成着色物质,在50分钟与80分钟之间的时间内使所述浴液达到80℃与120℃之间的温度,将其在此温度下放置在30分钟与90分钟之间的时间,并且最后在10分钟与30分钟之间的时间内将所述浴液冷却至在60℃与80℃之间的温度;
3)将所述浴液排干,并且使在先前段落中染色的纺织材料、产品或制品在同一机器中经受温度在35℃与55℃之间的第一洗涤,持续在5分钟与15分钟之间的时间;
4)将所述第一洗涤的浴液排干,并且使所述纺织材料、产品或制品在同一机器中经受在水中温度在20℃与35℃之间的第二洗涤,持续在2分钟与10分钟之间的时间,或在乙酸钠水溶液中在50℃下的第二洗涤,持续在2分钟与10分钟之间的时间;
5)将所述第二洗涤的浴液排干,并且使所述纺织材料、产品或制品在含有百分比为相对于所述纺织材料、产品或制品的初始重量在1%与6%之间的固定物质的浴液中经受温度在20℃与60℃之间并且pH在4.5与6.5之间的固色处理,持续在5分钟与30分钟之间的时间;
6)将所述浴液排干,并且使所述纺织材料、产品或制品经受干燥。
3.根据权利要求1或2中任一项所述的工艺,其进一步包括在搅拌下进行的预备步骤0,其中将有待着色的所述纺织材料、产品或制品浸入水中,在20℃与30℃之间的温度下持续在5分钟与10分钟之间的时间,并且其中可以将进行步骤1所需的润湿物质的量的全部或一部分添加到水中。
4.根据前述权利要求中任一项所述的工艺,其中:
-所述洗涤剂物质是2,2-二甲基-1,3-丙二醇(CAS编号126-30-7);
-所述润湿物质选自聚乙二醇-10丙基醚((C2H4O)nC10H22O,CAS编号160875-66-1)、石油馏出物(CAS编号64742-47-8)、十一烷醇乙氧基化物(CAS编号127036-24-2)、和2-甲基-3(2H)-异噻唑酮和5-氯-2-甲基-3(2H)-异噻唑酮的混合物(CAS编号55965-84-9);
-所述匀染物质选自5-磺基水杨酸(CAS编号97-05-2)、聚乙氧基化动物脂胺(CAS编号61791-26-2)、聚乙氧基化动物脂胺与硫酸二乙酯的季盐(CAS编号68071-95-4)、和C16-C18乙氧基化不饱和醇混合物(CAS编号68920-66-1);以及
-所述酸度调节剂是柠檬酸(CAS编号77-92-2)与5-磺基水杨酸(CAS编号97-05-2)的混合物,柠檬酸与5-磺基水杨酸的重量比在4:1与9:1之间。
5.根据权利要求4所述的工艺,其中相对于所述纺织材料、产品或制品的重量,以重量百分比计,所使用的量为:1%的所述洗涤剂物质、1%的所述润湿物质、在1%与2%之间的所述匀染物质和在10%与30%之间的所述酸度调节剂。
6.根据前述权利要求中任一项所述的工艺,其中所述一种或多种批准用于食品行业的合成着色物质选自下表中的物质:
。
7.根据前述权利要求中任一项所述的工艺,其中所述一种或多种批准用于食品行业的合成着色物质的使用量为所述纺织产品的重量的0.001%至6%。
8.根据前述权利要求中任一项所述的工艺,其中步骤5中使用的固定物质选自二乙二醇、二氧化硅在水中的5%悬浮液或其混合物。
9.根据前述权利要求中任一项所述的工艺,其中所述步骤5通过以下方式进行:将所述纺织材料、产品或制品浸入含有所述固定物质的所述浴液中,或当所述纺织材料、产品或制品是织物时用“浸轧”技术,或当所述纺织材料、产品或制品是成品服装物品时用喷雾技术。
10.根据前述权利要求中任一项所述的工艺,其中所述纺织材料、产品或制品由羊毛制成。
11.一种由动物毛纺织纤维组成的纺织材料、产品或制品,其采用根据权利要求1至10中任一项所述的纺织工艺染色。
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