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首页> 外文期刊>The Journal of the American Leather Chemists Association >Dyeing/Cross-Linking Property of Natural Iridoids to Protein Fibers Part I. Preparation of Four Natural Iridoids and Their Dyeing/ Cross-Linking (Tanning) Property to Hide Powder
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Dyeing/Cross-Linking Property of Natural Iridoids to Protein Fibers Part I. Preparation of Four Natural Iridoids and Their Dyeing/ Cross-Linking (Tanning) Property to Hide Powder

机译：天然虹膜蛋白对蛋白质纤维的染色/交联特性第一部分。四种天然虹膜蛋白的制备及其染粉的鞣/交联（鞣制）性能

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摘要

Four iridoid compounds, genipin, loganin aglycone, oleuropein aglycone and E-6-O-methoxycinnamoyl scandoside methyl ester aglycone were prepared from Gardenia jasminoides Ellis, Lonicera japonica Thunb, Olea europaea Linn and Hedyotis diffusa (Willd) Roxb respectively, their structures were identified by electron spray ionization-mass spectrometry (ESI-MS), 'H NMR and ~(13)C NMR. Their dyeing/tanning properties on hide powder was investigated, the relationship between dyeing/cross-linking (tanning) property and the chemical structures were discussed. The results showed that these four natural iridoids could react with hide powder under mild conditions (35°C, pH=7.5-8.0), within a short time (about 6 h) and at a low dosage (5% (w/w) of hide powder). The hydrothermal stability of the reacted hide powder was 20-25°C higher than the control sample, and different colors, such as dark blue, brown-yellow, yellow and mauve, were imparted to hide powder. The mechanism might be that cross-linking reaction took place between iridoids and -NH_2 groups of collagen molecular chains. These results implied that natural iridoids might act as completely novel "natural reactive dyes", especially for protein fibers and offering environmental-friendly simultaneous tanning-dyeing agents for leather manufacture.
机译：分别从El子，El木，金银花，油橄榄，白花蛇舌草（Willd）Roxb制备了四种鸢尾酮化合物，Genipin，loganin苷元，橄榄苦苷苷元和E-6-O-甲氧基肉桂酰基scan糖苷甲基苷元。通过电子喷雾电离质谱（ESI-MS），1 H NMR和〜（13）C NMR。研究了它们在生皮粉上的染色/鞣制性能，探讨了染色/交联（鞣制）性能与化学结构之间的关系。结果表明，这四种天然类鸢尾酮在温和的条件下（35°C，pH = 7.5-8.0），短时间（约6小时）和低剂量（5％（w / w））下可以与生皮粉反应。皮粉）。反应后的生皮粉的水热稳定性比对照样品高20-25℃，并且赋予生皮粉不同的颜色，例如深蓝色，棕黄色，黄色和淡紫色。其机制可能是虹彩分子和胶原分子链的-NH_2基团之间发生了交联反应。这些结果表明，天然的类环烯醚类化合物可以充当全新的“天然反应性染料”，特别是对于蛋白质纤维而言，并且可以为皮革制造提供环保的同时鞣制染料。

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    Baoqin Zhang; Loujin Xu; Keyi Ding;

  • 作者单位

    College of Chemistry & Environmental Protection Engineering, Southwest University for NationalitiesChengdu 610041, Sichuan, China;

    College of Chemistry & Environmental Protection Engineering, Southwest University for NationalitiesChengdu 610041, Sichuan, China;

    College of Chemistry & Environmental Protection Engineering, Southwest University for NationalitiesChengdu 610041, Sichuan, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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