Strong research and development and production capacity in textile auxiliaries, polyurethane waterproofing additives and other materials.

Dyeing/Printing Agents
Formaldehyde-free Red and Black Fixing Agent FIX-DHK153

Formaldehyde-free Red and Black Fixing Agent FIX-DHK153

Product Details

DHK153 is cationic multi-polymer. It can form water-insoluble macromolecular with anionic dyes. It can improve wash fastness and rub fastness of fabrics when combined with fiber. Different from common formaldehyde-free fixing agent, this product is designed for all kinds of color such as red and black dyes and enjoys excellent fixing efficiency with very small dosage, especially for soak fastness in boiling water.

Characteristics and advantage

◎ Has no free formaldehyde or combined formaldehyde, meeting environmental requirement.

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

◎ Outstanding soak fastness in boiling water.

◎ Particularly prominent color fixing ability to red and black dyes.

◎ Has no effect on brightness of dyed fabrics, basically no effect on color shade.

Technical Data

Appearance:   yellowish to yellow transparent liquid

Ionicity:   cationic

pH value:   5.5-7.5 (1% aqueous solution)

Solubility:    can be diluted with water by any ratio

Application field

Used for dyeing and printing of reactive, direct, sulfur and acid dye.

Application process

◎ Very high fixing efficiency, can be used directly or after being diluted 1:6-7 by water.

◎ Immersion method:  DHK153:     0.3-0.8% (o.w.f)

                                   Liquor ratio:        1:10-1:20

                                        pH value:         5.0-7.0

                        40-60℃, treat time:      20-30 minutes.

◎ Padding:                    DHK153:       3-8g/L


The dosage of DHK153 can be changed according to deep color or light color, higher dosage for deep color and less dosage for light color. 

This product enjoys good wash fastness with just small dosage. If better soak fastness in boiling water is needed, please increase dosage a little.

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

Kindly Reminder: for blue and green dyes, Formaldehyde-free blue and green fixing agent DHK159 is better.


50kg or 120kg plastic drum.


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

Inquiry Now
If you have any questions, please leave us a message and we will get back to you in the first time!

Qingdao Hengke Fine Chemicals Co.,Ltd