Textile Science and Engineering (한국섬유공학회지)
- Volume 20 Issue 4
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- Pages.20-27
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- 1983
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- 1225-1089(pISSN)
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- 2288-6419(eISSN)
A Study on the After Chroming of Dyed Silk Treated with Ferric Nitrate
질산철 처리에 의한 염색견사의 후매염에 관한 연구
- Kim, Gyeong-Hwan (Dept. of Textile Engineering, Pusan National University) ;
- Kim, Han-Do (Dept. of Textile Engineering, Pusan National University) ;
- Seong, U-Gyeong
- Published : 1983.08.01
Abstract
In general, the silk dyed with acid dyes is not good in fastness. To improve this defect, the silk dyed with Acid Mordant Blue 1 is treated with ferric nitrate solution. The results are as follows: 1) The amounts of iron absorbed on the dyed silk increase with the increase of temperature, concentration and pH of the ferric nitrate solution. 2) The development of the colour by the after chroming is accelerated according to the increase of treating temperature. In general, when the molar ratio between the absorbed dye and iron on the dyed silk is 1, the development of the colours reaches highest. 3) The colour fastness to light, washing, and hot water are improved by the after chroming, which is caused by the stable chelate formed with reaction of dye and ferric ion. 4) The amount of dye-Fe(III) complex is increased with the increase of Fe(III) concentration in the aqueous dye-Fe(NO
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