Under the guidance of the finding that the tyrosine residues in proteins could undergo three-component Mannich-type reactions with formaldehyde and electron-rich aniline-containing compounds,which forms covalent bondi...Under the guidance of the finding that the tyrosine residues in proteins could undergo three-component Mannich-type reactions with formaldehyde and electron-rich aniline-containing compounds,which forms covalent bonding connections between the protein of interest and the aniline with high levels of selectivity under relatively mild conditions,an orange aromatic primary amine-containing acid dye AMODB was designed and readily synthesized.The molecular structure was characterized by FTIR,^1H NMR,mass spectrometry and elemental analysis.The synthesized dye and a similar control dye（C.I.Acid Yellow 11） without primary amine groups were applied to dye silk fabric by three dyeing processes：Mannich-type dyeing（with and without the addition of formaldehyde） and acidic dyeing.Their washing and rubbing fastness properties with different dyeing methods were examined and compared.It was found that the dyed silk fabric with AMODB by the Mannich-type dyeing showed higher color depth,better anti-stripping ability to DMF and better washing fastness than those of the dyed silk fabric with C.I.Acid Yellow 11 by acidic dyeing due to the covalent bond formation between the dye chromophore of AMODB and silk fiber.In addition,mild Mannich dyeing conditions suitable for silk（AMODB at 3%owf,75：1 liquor-to-goods ratio,dyebath pH 5.5,30℃,10 h） were provided.展开更多
通过季铵化经两步反应合成了一种阳离子型无醛固色剂,并测试了其对不同染料的色牢度提升性能.应用研究表明,合成的阳离子型无醛固色剂用于直接染料耐晒蓝GL和Ever direct Red BWS[ECI]、活性染料Everzol RED ED和Everzol ED Naval Blue...通过季铵化经两步反应合成了一种阳离子型无醛固色剂,并测试了其对不同染料的色牢度提升性能.应用研究表明,合成的阳离子型无醛固色剂用于直接染料耐晒蓝GL和Ever direct Red BWS[ECI]、活性染料Everzol RED ED和Everzol ED Naval Blue染色后固色时,对直接染料的固色效果比活性染料好,固色后干、湿摩擦牢度及耐水洗牢度与固色剂NFC效果相当.以紫外吸光度法测试了不同固色剂与染料的结合能力,测试结果与应用数据相吻合.展开更多
基金supported by the National Natural Science Foundation of China(Nos.21106135 and 51173168)Zhejiang Provincial Key Innovation Team(No.2010R50038)+1 种基金Zhejiang Provincial Top Key Academic Discipline of Chemical Engineering and Technology"521" Talent Project of Zhejiang Sci-Tech University
文摘Under the guidance of the finding that the tyrosine residues in proteins could undergo three-component Mannich-type reactions with formaldehyde and electron-rich aniline-containing compounds,which forms covalent bonding connections between the protein of interest and the aniline with high levels of selectivity under relatively mild conditions,an orange aromatic primary amine-containing acid dye AMODB was designed and readily synthesized.The molecular structure was characterized by FTIR,^1H NMR,mass spectrometry and elemental analysis.The synthesized dye and a similar control dye（C.I.Acid Yellow 11） without primary amine groups were applied to dye silk fabric by three dyeing processes：Mannich-type dyeing（with and without the addition of formaldehyde） and acidic dyeing.Their washing and rubbing fastness properties with different dyeing methods were examined and compared.It was found that the dyed silk fabric with AMODB by the Mannich-type dyeing showed higher color depth,better anti-stripping ability to DMF and better washing fastness than those of the dyed silk fabric with C.I.Acid Yellow 11 by acidic dyeing due to the covalent bond formation between the dye chromophore of AMODB and silk fiber.In addition,mild Mannich dyeing conditions suitable for silk（AMODB at 3%owf,75：1 liquor-to-goods ratio,dyebath pH 5.5,30℃,10 h） were provided.
文摘通过季铵化经两步反应合成了一种阳离子型无醛固色剂,并测试了其对不同染料的色牢度提升性能.应用研究表明,合成的阳离子型无醛固色剂用于直接染料耐晒蓝GL和Ever direct Red BWS[ECI]、活性染料Everzol RED ED和Everzol ED Naval Blue染色后固色时,对直接染料的固色效果比活性染料好,固色后干、湿摩擦牢度及耐水洗牢度与固色剂NFC效果相当.以紫外吸光度法测试了不同固色剂与染料的结合能力,测试结果与应用数据相吻合.
