Formaldehyde-free blue and green fixing agent HF-4 is multi-amine cationic polymer. It can form water-insoluble macromolecular with dyes, thereby improve soaping and rub fastness of fabrics, especially to blue and green dyes. It is applicable to dyeing of reactive and direct dye for cotton, linen, viscose and printing fixing finish.

Characteristics and advantage

◎ Has no free formaldehyde or combined formaldehyde, meeting environmental

requirement.

◎ Can obviously improve wash and rub fastness of fabrics after fixation.

◎ Especially suitable for the fixing process of blue and green colour.

◎ Has no effect on the handle and absorbency of dyeing fabric.

◎ High concentrated product.

Basic property

Appearance:   yellowish to yellow brown liquid

Ionicity:   cationic

pH value:   5.0-7.0 (1% aqueous solution)

Solubility:   can be diluted with water by any ratio

Application field

Used for dyeing and printing of reactive, direct, sulfur of cotton, linen and viscose.

Application process

◎ Exhaustion: HF-4:         0.5-1.5% (o.w.f)

Liquor ratio:        1:10-1:20

pH value:         5.0-7.0

40-50℃ X 20-30 minutes.

◎ Padding: HF-4:           5-15g/L

Note: The dosage of HF-4 can be changed according to deep color or light color. The dosage may be increased for deep color and reduced for light color.  The affects on color shade should be tested before mass production.

Note: Generally, it can’t be used with anionic auxiliaries in one bath.

Packing

50kg or 120kg plastic drum.

Storage

Can be stored for 12 months under cool and well ventilated condition.