Engineering Research Center for Eco Dyeing and Finishing of Textiles

Hangzhou, China

Engineering Research Center for Eco Dyeing and Finishing of Textiles

Hangzhou, China
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Chen W.,Zhejiang Sci-Tech University | Chen W.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Wang Z.,Zhejiang Sci-Tech University | Wang Z.,Anhui Polytechnic University | And 5 more authors.
Fibers and Polymers | Year: 2014

This paper describes how coloration of silk can be achieved using a coupling reaction between a diazonium compound, made from Color Base Red G (C.I. 37105) and tyrosine residues in the silk protein fibroin. A pigment with an azo structure obtained from the reaction between the diazonium of Color Base Red G with p-methylphenol was synthesized and studied as a model compound for the coloration reaction. The colored materials were characterized using UV-vis, FT-Raman, FT-IR, 1H-NMR, and mass spectroscopy. Both the colored silk and the model compound gave yellow colors with absorption maxima in the region of 400 nm. The results suggest that the use of coupling reactions could be developed into a dyeing method for protein fibers or other protein materials that contain tyrosine residues. Because the chromophores are incorporated into the protein chains, such dyed silks should have good wet fastness properties. © 2014 The Korean Fiber Society and Springer Science+Business Media Dordrecht.


Chen W.G.,Zhejiang Sci-Tech University | Chen W.G.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Wang Z.Q.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Wang Z.Q.,Anhui Polytechnic University | And 3 more authors.
Advanced Materials Research | Year: 2013

High wet fastness dyeing is always the hot issue of silk industry. The plenty of tyrosine residue in silk protein may contribute an opportunity to solve this problem. In this paper, in situ coloration of silk is described using coupling reaction between diazonium compounds, made from different arylamine derivatives, and tyrosine residues in the silk fibroin. The spectra of coloured silk and the washing and rubbing fastness were measured. The results suggest that the use of coupling reactions could be developed into a dyeing method for silk. The wet fastness properties of such coloration are good because the chromophores are incorporated into the protein chains. © (2013) Trans Tech Publications, Switzerland.


Zhao X.-J.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Cui Z.-H.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Cui Z.-H.,Key Laboratory of Advanced Textile Materials and Manufacturing Technology | Wang R.-L.,Zhejiang Longsheng Group Co. | And 4 more authors.
Chinese Chemical Letters | Year: 2015

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 °C, 10 h) were provided. © 2014 Zhi-Hua Cui. Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. All rights reserved.


Cui Z.,Zhejiang Sci-Tech University | Cui Z.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Wang X.,Zhejiang Sci-Tech University | Chen W.,Zhejiang Sci-Tech University | And 3 more authors.
Coloration Technology | Year: 2012

A series of phenylazopyrazolone disperse dyes containing an acylamide moiety were synthesised from carboxyl-containing acid dyes via chlorination and amidation with different sorts of amines. The structures of these new dyes were confirmed by Fourier Transform-infrared, proton nuclear magnetic resonance, mass spectroscopy and elemental analysis. Their solvatochromic properties in different solvents were also investigated and the absorbance spectra of the acylamide dyes in solution exhibited a red shift when dissolved in dimethylformamide, compared with acetone. Their dyeing behaviour, including dye sorption, colour build-up and colour fastness properties on poly(lactic acid) fibres, was also determined, whereupon it was found that the tertiary acylamide dyes simultaneously exhibited high dye sorption and satisfactory colour build-up and fastness properties on the poly(lactic acid) fabric. © 2012 The Authors. Coloration Technology © 2012 Society of Dyers and Colourists.


Zhao Y.,Zhejiang Sci-Tech University | He Y.,Zhejiang Sci-Tech University | Xue G.,Zhejiang Sci-Tech University | Lei X.,Hangzhou Dianzi University | And 2 more authors.
Advanced Materials Research | Year: 2011

With the continuous improvement of environmental protection requirements, the discharge of secondary fiber industry including waste water, gas and sludge were controlled more strictly. The toxicity studies on coated white board effluents of secondary fiber were carried out by using optimized photo bacteria method. The results showed that the value of EC50 for acute toxicity in coated white board effluents, which were produced from liners effluents and integrated effluents, were 85.50% and 89.77% respectively, reached the level of Moderately Toxic, by contraries from barrier coating effluents, was 157.57%, belong to Non-Toxic Class. Therefore, it should be pay more attention to the toxicity and toxicity emission load of coated white board effluents. Additionally, it can be seen from the analysis of organic compositions that key toxicant produced by liners effluents was diethyl phthalate. And there were no key toxicants of barrier coating effluents. © (2011) Trans Tech Publications.


Zhao Q.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Zhao Q.,Zhejiang Sci-Tech University | Zhao X.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Zhao X.,Zhejiang Sci-Tech University | And 4 more authors.
Key Engineering Materials | Year: 2015

The dissolution of wool in 4 g/L NaOH solution at 65 °C is used to be a standard test method for the damage of wool in the processing. This suggests that alkali can cause wool keratin and the linkage between molecule chains broken. Fortunately, the dissolution of wool at low temperature is mainly limited on the surface scales because the swelling of wool in water solution at lower temperature is quite small. In this paper, the dissolution of wool in alkali solution and the changes of the fiber structure and performance at different temperature were investigated. The results showed clearly that the wool surface keratin could be dissolved in different extent with the varying of the temperature and this could be applied to develop an AOX free modification of wool for shrinkage resistance. © (2016) Trans Tech Publications, Switzerland.


Yao G.,Zhejiang Sci-Tech University | Zheng J.,Zhejiang Sci-Tech University | Zheng J.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Chen H.,Zhejiang Sci-Tech University
Advanced Materials Research | Year: 2011

Vitamin E (VE) microcapsules with polyurethane (PU) shell are successfully prepared via interfacial polymerization of polyurethane with toluene-2,4-diisocyanate (TDI) as the isocyanate, polyethylene glycol as the polyol, and 1,4-butanediol (BD) as the chain extender. In the preparation process, VE emulsion, prepolymer and microencapsulation of VE are studied using a particle size analyzer, butylamine titration, optical microscopy (OM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Based on the present research, VE microcapsules prepared have smooth surfaces and spherical appearances, the mean particle size of about 550 nm. Vitamin E microcapsules have been glued effectively to textiles, and a kind of skin-care product has been developed. © (2011) Trans Tech Publications, Switzerland.


Li L.M.,Zhejiang Sci-Tech University | Li Y.Q.,Zhejiang Sci-Tech University | Li Y.Q.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Liu J.Q.,Zhejiang Sci-Tech University | Liu J.Q.,Engineering Research Center for Eco Dyeing and Finishing of Textiles
Advanced Materials Research | Year: 2013

The effect of atmospheric pressure dielectric barrier discharge plasma treatment on desizing polyvinyl alcohol (PVA) on polyester fabric was discussed as compared desizing with alkali through a combination of desizing rate, field scanning electron microscopy and strength test. The dyeing properties of polyester fabrics treated with atmospheric plasma have also been studied. The results show that plasma treatment can improve desizing rate, surface color depth and dye-uptake for polyester fabric. © (2013) Trans Tech Publications, Switzerland.


Jin H.,Zhejiang Sci-Tech University | Zhao Y.,Zhejiang Sci-Tech University | Lei X.,Hangzhou Dianzi University | Xue G.,Zhejiang Sci-Tech University | And 3 more authors.
Proceedings - International Conference on Computer Distributed Control and Intelligent Environmental Monitoring, CDCIEM 2011 | Year: 2011

Shrimp wastewater was studied by using photosynthetic bacteria sludge method. The results indicated that this method got better effects than single sludge or only photosynthetic bacteria treatment. The removal of the CODcr could reach 63%, the removal of the NH3-N could reach 92.5%. Compared with conventional methods, it had easier operation, lower cost; and need not deal with the problem of sludge. Another advantage of this method was that it could solve the problem of photosynthetic bacteria losing. Based on the experiment a feasible technical method was suggested by the authors. © 2011 IEEE.


Huang Y.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Cao B.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Xu C.,Engineering Research Center for Eco Dyeing and Finishing of Textiles | Fan Q.,University of Massachusetts Dartmouth | Shao J.,Engineering Research Center for Eco Dyeing and Finishing of Textiles
Textile Research Journal | Year: 2015

A low-viscosity urethane acrylate oligomer was synthesized under optimized conditions using a specially selected low molecular weight polyether diol. The synthesis process and the reaction endpoint were monitored by Fourier transform infrared spectroscopy. The rheological properties of the synthesized urethane acrylate oligomer were evaluated by rheology measurements in both steady and dynamic modes, and the blue light induced photopolymerization behavior of the oligomer with camphorquinone and ethyl-4-dimethylaminobenzoate as photoinitiators was examined with photo-differential scanning calorimetry analysis. A blue light curable pigment ink based on the low-viscosity urethane acrylate oligomer was prepared, and jet printed on cotton fabrics using a simulating digital printing device, then photo-cured under blue light irradiation. The printed fabric samples showed fine patterns with soft fabric handle. © The Author(s) 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav

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