Color fixation mechanism of CTS-Ag and its effect on the properties of dyed veneer

ZHANG Ying; YU Zhi-ming; ZHANG Yang; TANG Rui-lin

doi:10.13332/j.1000-1522.20140432

Journal of Beijing Forestry University > 2015 > 37(6): 107-111. > DOI: 10.13332/j.1000-1522.20140432

ZHANG Ying, YU Zhi-ming, ZHANG Yang, TANG Rui-lin. Color fixation mechanism of CTS-Ag and its effect on the properties of dyed veneer[J]. Journal of Beijing Forestry University, 2015, 37(6): 107-111. DOI: 10.13332/j.1000-1522.20140432

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Color fixation mechanism of CTS-Ag and its effect on the properties of dyed veneer

MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University,Beijing, 100083,P. R. China;

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Received Date: November 30, 2014

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Abstract

We analyzed the effect of pH value on the properties of reaction products between CTS-Ag and acid dyes in order to optimize the processes of antibacterial dyeing veneers and reveal the color fixation mechanism of CTS-Ag. The chromatic aberration, water fastness, light fastness, and antibacterial property of antibacterial dyed veneers with various processes were measured. The results showed that: an acid-base neutralization reaction occurred between CTS-Ag and acid dyes under acid condition, and the lower pH value,the higher value of dye uptake rate and better fixing effect. Chromatic aberration value between CTS-Ag-treated antibacterial dyed veneer (ADV) and untreated ADV ranked as: ADV pretreated with CTS-Ag (Process B)＞combined treated ADV (Process C)＞post-treated with CTS-Ag (Process A). For water fastness, the order was Process C＞Process A＞Process B. However, Process A presented a poorer light fastness, while Process B and Process C improved light fastness. For antibacterial and antifungal properties, the order was Process A＞Process C＞Process B.
- CTS-Ag,
- antibacterial,
- dyeing,
- fixation mechanism,
- veneer

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Color fixation mechanism of CTS-Ag and its effect on the properties of dyed veneer

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