Method for producing vegetable dyes by adopting lima wood chips

The invention discloses a method for producing vegetable dyes by adopting lima wood chips. The method includes the following steps: step a, a step of material taking, namely the step of selecting yellow-red to brown-red lima wood chips; step b, a step of soaking; step d, a step of first extraction; step e, a step of second extraction; and step f, a step of fermentation. The method effectively enhances the concentration of vegetable dyes so that dye uptake can be increased; the method can be directly used for the dyeing of the vegetable dyes of textiles without concentration processes, and thedegree of dyeing after vegetable dyeing can be enhanced more than double that of extraction methods at normal temperature below 100 degrees, so that color fastness can be increased by one level; highresource utilization rates and no pollution to environments can be realized; and natural vegetable dyes produced by the method are short in production period, controllable in production quality, and very environmentally friend