Loose fiber continuous water washing equipment and water washing method

The invention discloses a loose fiber continuous water washing equipment. The loose fiber continuous water washing equipment comprises a sealed water washing water tank I, a sealed acid washing watertank, a sealed soaping water tank, a sealed hot washing water tank, a sealed water washing water tank II, a sealed solid color water tank, a sealed oiling water tank and a two-roller heavy inclined rolling vehicle which are arranged in sequence by taking the material movement direction as the forward direction. A material loose fiber cloth is conveyed to the sealed water washing water tank I, thesealed acid washing water tank, the sealed soaping water tank, the sealed hot washing water tank, the sealed water washing water tank II, the sealed solid color water tank, the sealed oiling water tank and the two-roller heavy inclined rolling vehicle in sequence to complete the procedures of primary water washing, acid washing, soaping and hot washing, secondary water washing, color fixing and oiling, and two-roller heavy