Functional Finishing of Natural Fibers by Interfacial Graft Polycondensation

天然纤维的界面接枝缩聚功能整理

• 批准号: 09555295
• 负责人: MIYAMOTO Takeaki
• 金额: $ 8.96万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09555295/
• 关键词: functional finishing; wool; cotton; interfacial; colored polymer; shrinkproofing; dyeing; water-repellency; 天然繊維; 機能加工; ポリアミド; 染料含有ナイロン薄膜; パステル染色; 形態安定; 耐光堅牢度; 繊維機能加工; 染料含有高分子; 耐日光堅牢度; 防縮加工; 反応性染料

SummaryA new technique has been investigated for the functional finishing of natural fibers such as wool and cotton fibers. The principle of this technique is based on the formation of a thin, uniform, colored polymer film, e.g., poly(hexamethylene sebacamide) film, on the fiber surface by an interfacial polycondensation reaction. For wool, this technique may provide the simultaneous dyeing and shrinkproofing without damaging the hydrophobic nature of the fiber surface and for cotton, the dyeing, dimensional stability and water-repellency of fibers.The process involves (i) immersion of fibers or fabrics in an aqueous solution of an aliphatic diamine containing reactive dye, surfactant and sodium hydroxide, (ii) padding to remove excess liquor, (iii) immersion in a solution of diacyl chloride in a water-immiscible solvent, (iv) padding to remove excess liquor, and (v) washing and drying. The reaction time takes place within a few minutes at room temperature. The surfactant is used to fa … More cilitate the wetting of fibers.The results on wool fibers showed that (1) the finishing compresses an interfacial graft polymerization of wool fibers and is proved to be very effective as a method for rendering wool fibers shrinkproof, (2) the color shade and depth of the fibers can be arbitrarily controlled from pastel to deep colors by changing the dye and its amount, (3) the hydrophobic nature at the fiber surface can be maintained by controlling the alkyl lengths of diamine and /or diacyl chloride, (4) the light fastness of colored. polyamides depends on the kind of dyes, (5) similar functions can be rendered to the wool fibers by adding the dye in the water-immiscible solvent, i, e., in the second bath, but (6) the post-treatment of fibers, e.g., the post-treatment with formic acid which is a solvent for alphatic polyamides, is required to improve the effect of the above-mentioned finishes.Preliminary trials on cotton fibers suggested that this technique is also effective not only as a method for pastel dyeing of cotton fibers, but also as a functional finishing for rendering cotton fibers or fabrics dimensional stability and water-repellency. Less

摘要已经研究了一种用于羊毛和棉纤维等天然纤维功能性整理的新技术。该技术的原理是基于通过界面缩聚反应在纤维表面上形成薄的、均匀的、有色的聚合物膜，例如聚(六亚甲基癸二酰胺)膜。对于羊毛，该技术可以在不损害纤维表面疏水性的情况下同时进行染色和防缩；对于棉，该技术可以提供纤维的染色、尺寸稳定性和防水性。该方法包括（i）将纤维或织物浸入含有活性染料、表面活性剂和氢氧化钠的脂肪族二胺水溶液中， (ii)浸轧以除去过量的液体，(iii)浸入二酰氯在与水不混溶的溶剂中的溶液中，(iv)浸轧以除去过量的液体，以及(v)洗涤和干燥。反应时间在室温下几分钟内发生。表面活性剂用于促进纤维的润湿。对羊毛纤维的结果表明：（1）整理压缩了羊毛纤维的界面接枝聚合，并被证明是一种非常有效的使羊毛纤维防缩的方法，（2）通过改变染料及其用量，可以任意控制纤维的色调和深度，从柔和的颜色到深色， (3)通过控制二胺和/或二酰氯的烷基长度可以保持纤维表面的疏水性，(4)着色的耐光牢度。聚酰胺取决于染料的种类，(5)通过将染料添加到与水不混溶的溶剂中，即第二浴中，可以赋予羊毛纤维类似的功能，但(6)需要对纤维进行后处理，例如用作为脂肪族聚酰胺的溶剂的甲酸进行后处理，以改善上述效果 对棉纤维的初步试验表明，该技术不仅可以作为棉纤维柔和染色的方法，而且可以作为赋予棉纤维或织物尺寸稳定性和防水性的功能性整理。较少的