Studies on the Light Fastness of Dyeings (Part 1) The State of Direct Dyes in Cellulose (preliminary report

染色物의 日光에 對한 堅牢性에 關한 硏究 (第1報) 直接染料로 染色된 纖維素 纖維內에 있어서의 染料의 存在狀態 (豫報)

  • Ha, Wan-Shik (Textile Testing Laboratory, Spinners & Weavers Association of Korea)
  • 하원식 (大韓紡織協會 紡織試驗檢査所)
  • Published : 19621200

Abstract

It is thought that the adsorption isotherms in dyeing of cellulose by the direct cotton dyes are consisted of combined type of Langmuir and Freundlich as the opinion of Fujino, et al;$[D]_F=ab[D]_S/(1+b[D]_S)+k[D]_S$where a,b,k; constants, $[D]_F$; dye adsorption on the fiber, $[D]_S$; dye concentration in the bath. This means that the dyes adsorbed in cellulose present in the state of partly mono molecular and partly aggregate; the characteristic fading order curve will be expressed as the combined system of uniform particle size distribution and assumed that the slope of the theoretical models of Baxter, et al., and assumed that the slope of curve will be changed near the point of a, the saturation value of Langmuir isotherms in the above equation. Firstly, the theoretical fading rate curve was treated with small colour difference as the one step of experimental of above consideration.

Keywords

References

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