Polypropylene fiber dyeing method

Practice has proved that polypropylene fiber shrinkage 5% ~ 12% at 130 degrees, again not resistant to dry, so there was a moderate humidity are polypropylene fiber textile most appropriate under the dyeing and finishing, because of the high temperature can make the fabric hand feel stiff, and irreversible, especially dry heat.
 
The color of the polypropylene fiber and rely mainly on the following two ways: one is by joining in the polymer or help dye of aluminum salt and nickel salt and application such as acid or acid complexing dye dyeing, dye is limited to shallow medium; Another kind of concentrate coloring method. The production of polypropylene fibre not only cost is high, have an effect on the strength of the polypropylene fiber itself, and the shallow at the flag of dark stain. Therefore, color most of polypropylene fiber is given priority to with color concentrate. Now in the market to provide most of the white polypropylene fiber cannot be dyed, but the original defects of aging, poor light fastness is improved.
In order not to affect the disperse dye dyeing, the polyester/acrylic fabric dye bath can add 1 ~ 2 grams/liter of carrier to dye, such as dye NP, guide of polypropylene fiber and its colour and lustre is basically no effect.