CN112012027A - 一种醋酯纤维素纤维织物的染色方法 - Google Patents
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Abstract
本发明涉及一种醋酯纤维素纤维织物的染色方法，包括以下步骤，①、配制染色促进剂：按重量百分比，将1~5%的双乙酰酒石酸单双甘油酯、10~20%的聚甘油脂肪酸酯、10~20%的脂肪醇聚氧乙烯醚硫酸钠、55~75%的水进行混合并混合均匀，制得染色促进剂；②、对醋酯纤维素纤维织物进行染色：按照浴比为1:10~1:40，将醋酯纤维素纤维织物加入到含有分散染料、扩散剂、步骤①制得的染色促进剂、醋酸的染色浴缸中，之后升温并恒温染色，染色结束后降温；本发明的醋酯纤维素纤维织物的染色方法，可以在较低的温度下促进醋酯纤维素纤维的溶胀，有利于分散染料对醋酯纤维素纤维内部的扩散，提高上染率和得色量，大大提高了醋酯纤维素纤维在纺织品开发中的应用。
Description
技术领域
本发明涉及一种醋酯纤维素纤维织物的染色方法。
背景技术
醋酯纤维素纤维是以木浆浆粕为原料，对其纤维素中的羟基进行乙酰化后形成纤维素酯化衍生物，再经干法纺丝而成，根据纤维素中羟基被乙酰基取代的程度分为二醋酯纤维素纤维和三醋酯纤维素纤维。醋酯纤维素纤维属于源自天然材料的纤维品种，具有的生物基、可降解等环保特性符合当前纺织行业向科技、时尚和绿色转型的新定位。醋酯纤维素纤维具有柔和的光泽、优良的抗静电、良好的吸湿快干特性、亲肤舒适、易打理和优良的仿真丝效果等特点，能够很好地满足当前消费者的需求，产品深受消费者喜爱。
醋酯纤维素纤维强力低、不耐高温、不耐碱、不耐氧化剂，印染加工难度较大，存在上色局限性大、得色率不高、布身容易产生折痕，因此，醋酯纤维素纤维新产品的开发在织造、染整加工环节依然存在一些共性关键技术亟待解决。尤其是采用分散染料染色时得色量不高，又不能采用高温条件染色。这大大影响了醋酯纤维素纤维在纺织品开发中的应用，虽然醋酯纤维素纤维的发明和生产已有100左右的历史，但是，醋酯纤维素纤维在服用纺织品加工中的用量相对其他化学纤维来说是较少的。因此，要得到高浓度的染色织物需要进行染色方法的创新。
发明内容
本发明所要解决的技术问题是克服现有技术的不足，提供一种醋酯纤维素纤维织物的染色方法。
为解决上述技术问题，本发明采取的技术方案如下：
一种醋酯纤维素纤维织物的染色方法，包括以下步骤，
①、配制染色促进剂：按重量百分比，将1~5%的双乙酰酒石酸单双甘油酯、10~20%的聚甘油脂肪酸酯、10~20%的脂肪醇聚氧乙烯醚硫酸钠、55~75%的水进行混合并混合均匀，制得染色促进剂；
②、对醋酯纤维素纤维织物进行染色：按照浴比为1:10~1:40，将醋酯纤维素纤维织物加入到含有分散染料、扩散剂、步骤①制得的染色促进剂、醋酸的染色浴缸中，之后升温至75℃~90℃，并恒温染色30~80min，染色结束后，降温至40℃~50℃，并依次进行还原清洗、水洗，烘干。
优选地，步骤②中，在染色浴缸内温度处于35℃~45℃时，再将醋酯纤维素纤维织物加入染色浴缸中。
优选地，步骤②中，分散染料的添加量为 0.5~5.0%owf。
优选地，步骤②中，扩散剂为木质素磺酸钠，其添加量为1g/L。
优选地，步骤②中，染色促进剂的添加量为0.5~5.0 g/L。
优选地，步骤②中，醋酸的pH值调节为5.0~6.0。
优选地，步骤②中，在醋酯纤维素纤维织物加入染色浴缸中之后，染色浴缸内的升温速度为1.5℃/分钟。
优选地，步骤①的聚甘油脂肪酸酯为四聚甘油双月桂酸酯、五聚甘油双月桂酸酯、十聚甘油双月桂酸酯的一种或多种的混合物。
优选地，醋酯纤维素纤维包括二醋酯纤维素纤维、三醋酯纤维素纤维。
由于以上技术方案的实施，本发明与现有技术相比具有如下优点：
本发明的醋酯纤维素纤维织物的染色方法，采用双乙酰酒石酸单双甘油酯、聚甘油脂肪酸酯等酯类化合物作为醋酯纤维素纤维织物染色的促进剂，可以在较低的温度下促进醋酯纤维素纤维的溶胀，有利于分散染料对醋酯纤维素纤维内部的扩散，提高上染率和得色量，大大提高了醋酯纤维素纤维在纺织品开发中的应用。
具体实施方式
下面以具体的实施例对本发明做进一步详细的说明。
实施例一：
一种醋酯纤维素纤维织物的染色方法，包括以下步骤，①、配制染色促进剂：按重量百分比，将2%的双乙酰酒石酸单双甘油酯、16%的五聚甘油双月桂酸酯、12%的脂肪醇聚氧乙烯醚硫酸钠、70%的水进行混合并混合均匀，制得染色促进剂，双乙酰酒石酸单双甘油酯、五聚甘油双月桂酸酯、脂肪醇聚氧乙烯醚硫酸钠均为市售常规产品；
②、对醋酯纤维素纤维织物进行染色：按照浴比为1:20，将醋酯纤维素纤维织物加入到含有分散染料、扩散剂、步骤①制得的染色促进剂、醋酸的染色浴缸中，之后升温至75℃~90℃，并恒温染色30~80min，染色结束后，降温至40℃~50℃，之后依次进行还原清洗、水洗，烘干步骤，得到分散染料染色的醋酯纤维素纤维织物。
本例步骤②中，在染色浴缸内温度处于40℃时，再将醋酯纤维素纤维织物加入染色浴缸中；分散染料（分散红玉SE-GFL）的添加量为 1.0%owf；步骤②中，扩散剂为木质素磺酸钠，其添加量为1g/L；染色促进剂的添加量为2.0 g/L；醋酸的pH值调节为5.5；在醋酯纤维素纤维织物加入染色浴缸中之后，染色浴缸内的升温速度为1.5℃/分钟。
实施例二：
本例中，醋酯纤维素纤维织物的染色方法基本与实施例一中的相同，不同之处仅在于染色促进剂的配制及染色促进剂在染色过程中的使用量；
具体本例中，配制染色促进剂：按重量百分比，将4%的双乙酰酒石酸单双甘油酯、8%的四聚甘油双月桂酸酯、4%的十聚甘油双月桂酸酯、18%的脂肪醇聚氧乙烯醚硫酸钠、66%的水进行混合并混合均匀，制得染色促进剂，双乙酰酒石酸单双甘油酯、四聚甘油双月桂酸酯、十聚甘油双月桂酸酯、脂肪醇聚氧乙烯醚硫酸钠均为市售常规产品。
在染色过程中染色促进剂的添加量为3.0 g/L。
按照以上述实施例一和实施例二中的方法对二醋酯纤维素纤维织物进行染色，测试上染百分率，并与不加染色促进剂的方法进行比较，得到：
不加染色促进剂 上染百分率为76.5%
实施例一：加染色促进剂2.0 g/L 上染百分率为89.6%
实施例二：加染色促进剂3.0 g/L 上染百分率为90.3%
综上所述，本发明的醋酯纤维素纤维织物的染色方法，采用双乙酰酒石酸单双甘油酯、聚甘油脂肪酸酯等酯类化合物作为醋酯纤维素纤维织物染色的促进剂，可以在较低的温度下促进醋酯纤维素纤维的溶胀，有利于分散染料对醋酯纤维素纤维内部的扩散，提高上染率和得色量，大大提高了醋酯纤维素纤维在纺织品开发中的应用。
以上对本发明做了详尽的描述，其目的在于让熟悉此领域技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明的精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。
Claims (9)
1.一种醋酯纤维素纤维织物的染色方法，其特征在于：包括以下步骤，
①、配制染色促进剂：按重量百分比，将1~5%的双乙酰酒石酸单双甘油酯、10~20%的聚甘油脂肪酸酯、10~20%的脂肪醇聚氧乙烯醚硫酸钠、55~75%的水进行混合并混合均匀，制得染色促进剂；
②、对醋酯纤维素纤维织物进行染色：按照浴比为1:10~1:40，将醋酯纤维素纤维织物加入到含有分散染料、扩散剂、步骤①制得的染色促进剂、醋酸的染色浴缸中，之后升温至75℃~90℃，并恒温染色30~80min，染色结束后，降温至40℃~50℃，并依次进行还原清洗、水洗，烘干。
2.根据权利要求1所述的醋酯纤维素纤维织物的染色方法，其特征在于：步骤②中，在染色浴缸内温度处于35℃~45℃时，再将醋酯纤维素纤维织物加入染色浴缸中。
3.根据权利要求1所述的醋酯纤维素纤维织物的染色方法，其特征在于：步骤②中，所述分散染料的添加量为 0.5~5.0%owf。
4.根据权利要求1所述的醋酯纤维素纤维织物的染色方法，其特征在于：步骤②中，所述扩散剂为木质素磺酸钠，其添加量为1g/L。
5.根据权利要求1所述的醋酯纤维素纤维织物的染色方法，其特征在于：步骤②中，所述染色促进剂的添加量为0.5~5.0 g/L。
6.根据权利要求1所述的醋酯纤维素纤维织物的染色方法，其特征在于：步骤②中，所述醋酸的pH值调节为5.0~6.0。
7.根据权利要求1所述的醋酯纤维素纤维织物的染色方法，其特征在于：步骤②中，在所述醋酯纤维素纤维织物加入染色浴缸中之后，所述染色浴缸内的升温速度为1.5℃/分钟。
8.根据权利要求1所述的醋酯纤维素纤维织物的染色方法，其特征在于：步骤①的聚甘油脂肪酸酯为四聚甘油双月桂酸酯、五聚甘油双月桂酸酯、十聚甘油双月桂酸酯的一种或多种的混合物。
9.根据权利要求1所述的醋酯纤维素纤维织物的染色方法，其特征在于：所述醋酯纤维素纤维包括二醋酯纤维素纤维、三醋酯纤维素纤维。
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