Formaldehyde-free fixing agent HS-2

1. Physical and chemical properties
Colorless or yellowish transparent liquid
Ionic cation
PH 4-6 (1% aqueous solution)
Solubility Easily soluble in water
2. Chemical properties
1. An excellent post-dyeing fixing agent, which is generally applicable to various processes to improve the wet fastness of reactive dyes and direct dyes on cellulose fibers.
2. It can be used with non-ionic and cationic products.
3. Flocculation and sedimentation may occur at the same time with anionic products.
3. Reference dosage
It is worth noting that the color fixing agent HS-2 cannot be compatible with anionic products, so it is only applicable to the treatment process after the fabric is fully washed.
1. Immersion method:
The fabric is treated with the following fixative HS-2 concentration for 20 minutes at 25-30 ℃ and PH-5.0. 0.5-1.5% for light to medium colors;
1.5-2.5% for dark colors. Then wash it with water and dry it.
2. Dip rolling method:
Immerse the fabric in HS-2 solution at 20-30 ℃, and then roll it. Solution concentration of fixing agent HS-2.
7-15 g/L for light to medium colors; 15-30 g/L is suitable for dark colors.
The fabric is dried after being dipped in HS-2 solution.
The fixing agent HS-2 can be used to improve the wet fastness of direct dyes. Its advantages are that it does not contain formaldehyde and has little impact on the color light and light fastness.
4. Stripping
It can be used to peel the fixing agent HS-2 from the fabric with fixed color by the following methods;
2.0 g/L formic acid is treated at 90 ℃ for 20 minutes, and then thoroughly washed with warm water.
Add 1-4 g/L JFC at the same time to improve the stripping effect.
5. Packaging and storage
125kg plastic drum, cool and dry place, storage period of one year.