How to Dye Silk Fabrics?

The purpose of the present invention is to provide a method for dyeing silk fabrics, and the dyed fabrics have excellent color fastness to chlorine bleaching, color fastness to washing, color fastness to dry cleaning, color fastness to rubbing, color fastness to sunlight, and perspiration. Color fastness, water stain fastness, non-chlorine bleaching color fastness, and good dyeing uniformity, colorless flower.

silk scarf

In order to achieve the above objective, the technical solution of the present invention is to design a method for dyeing silk fabrics, which includes the following steps:


1) Add 1 to 2 parts by weight of titanium dioxide, 2.6 parts by weight of β-alanine, 2.6 parts by weight of N-methylpyrrolidone, 1.4 parts by weight of sodium silicate, and 40 parts by weight of vegetable dyes in turn into the dye vat. Ionized water, stir evenly, and heat to 55°C;

silk fabric

2) Add 1.6 parts by weight of chitosan, 0.8 parts by weight of sodium secondary alkyl sulfonate, 0.5 parts by weight of urea, and 2.6 parts by weight of dibutyl phthalate in sequence, continue stirring until fully mixed and uniform, and heat to 65 ℃;


3) Soak the fabric in the dyeing vat for 25 minutes;


4) Dry the soaked fabric at 80°C;


5) Immerse the dried fabric in clean water and rinse for 25 minutes;


6) Take out the rinsed fabric and let it dry naturally.


Preferably, the dyeing method of silk fabric includes the following steps:


1) Sequentially add 1 part by weight of titanium dioxide, 2.6 parts by weight of β-alanine, 2.6 parts by weight of N-methylpyrrolidone, 1.4 parts by weight of sodium silicate, and 40 parts by weight of vegetable dyes into the dye vat and put into 150 parts by weight of deionized water. , Stir evenly, and heat to 55℃;


2) Add 1.6 parts by weight of chitosan, 0.8 parts by weight of sodium secondary alkyl sulfonate, 0.5 parts by weight of urea, and 2.6 parts by weight of dibutyl phthalate in sequence, continue stirring until fully mixed and uniform, and heat to 65 ℃;


3) Soak the fabric in the dyeing vat for 25 minutes;


4) Dry the soaked fabric at 80°C;


5) Immerse the dried fabric in clean water and rinse for 25 minutes;


6) Take out the rinsed fabric and let it dry naturally.