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Abstract
The effect of lipase pretreatment on the dyeability of wool fabric with reactive dyes is thoroughly investigated. Two enzymes are applied, lipase type II and lipolase 100 L, type EX. The effect of treatment conditions such as temperature, time, and concentration of enzyme on the dyeability of wool fabric is studied. A comparative study between exhaustion and padding techniques of treatment is investigated. Kinetic investigations are also given on the dyeing process of wool fabric with reactive dyes. The treatments revealed improvement in the dyeability of wool with reactive dyes. The use of the enzyme pretreatment enables wool dyeing under mild temperature conditions with increasing dye consumption and an increase of the rate of dyeing. This is reflected as energy saving and reduction of pollution impact.