关键词: 植物染料, 麻栎壳斗, 羊毛织物, 染色

Abstract: In this paper, the following aspects of the vegetable dye extracted from the cupule of Quercus acutissima Carr. were investigated: (1) the stability to acid and alkali; (2) the effects of the pH value in dye bath and the after-mordanting with aluminum and iron (Ⅱ) to the dyeing properties on wool fabrics; and (3) the kinetics during the dyeing processes on wool fabrics. The results suggested that: (1) the vegetable dye extracted from the cupule of Q. acutissima exhibited good dyeing properties to wool fabrics in strong acid dye bath (pH=3) and it can dye wool fabric by using direct dyeing method; (2) the after-mordanting method with iron (Ⅱ) was also available and it changed the color of the dyed wool fabrics from brown to pale black; and (3) the dyeing process on wool fabric got to a balance after keeping the dyeing process for 250 min at the temperature of 100 ℃.

Key words: vegetable dye, cupule of Quercus acutissima Carr., wool fabric, dyeing