| 摘要 |
By the use of a known bacterial alpha -amylase having significant activity at pH values above 8.5 and temperatures below 30 DEG C, de-sizing and reactive dyeing by the cold dwell process may be carried out simultaneously on cellulose textile materials. The dyed materials have good colour yield and levelness and are not hardened. A non-ionic wetting agent is generally included in the treatment liquor. |
