Formaldehyde-free Cationic Polymer Color Fixing Agent
Appearance:
Colorless To Light Yellow Viscous Liquid
Solid Content:
40%
PH Of 1% Aqueous Solution:
3-6
Water Solubility:
Readily Soluble In Cold Water
Packaging Details:
50 kg, 210 kg or 1,100 kg in plastic drums or containers as specified for the order.
Supply Ability:
1000tons/w
Highlight:
Formaldehyde-free Color Fixing Agent
,
Cationic Polymer Dye Fixing Agent
,
40% Solid Content Color Fixing Agent
Product Description
BWF-401 Color Fixing Agent for Reactive and Anionic Dyes
BWF-401 is a formaldehyde-free cationic polymer color fixing agent with 40% solid content. It is used for textile color fixation after dyeing with reactive and other anionic dyes, typically at 0.5-2.0% o.w.f., 45-60 °C and bath pH 6.0-7.0.
Product overview
BWF-401 is a colorless to light yellow viscous liquid for use in the fixation stage after dyeing, rinsing and, where necessary, soaping. It is particularly suited to evaluating reactive dye fixation using a treatment bath near neutral pH. The supplied liquid dissolves readily in cold water. Its 40% solid content distinguishes it from the 50% BWF-422 grade, while both products have a published fixation temperature range of 45-60 °C. Model selection should be based on fabric trials and the treatment result required.
Key features
40% solid-content liquid cationic polymer.
Reactive dye fixation is a principal application.
Also suitable for evaluation in other anionic dye systems.
Recommended bath pH of 6.0-7.0 and treatment time of 20-30 minutes.
Readily dissolves in cold water for bath preparation.
Technical specifications
Property
Specification
Property
Model
Specification
BWF-401
Property
Product type
Specification
Formaldehyde-free cationic polymer color fixing agent
Property
Appearance
Specification
Colorless to light yellow viscous liquid
Property
Solid content
Specification
40%
Property
pH of 1% aqueous solution
Specification
3.0-6.0
Property
Water solubility
Specification
Readily soluble in cold water
Applications
BWF-401 is intended for color fixation of textiles dyed with reactive and other anionic dyes. The technical data sheet also identifies use in garment color fixation. Evaluate it when the existing line can provide a 45-60 °C bath, 20-30 minutes of treatment and final fixation bath pH of 6.0-7.0. The dye class and substrate should be confirmed for each application.
Recommended application method
Application parameter
Recommended starting condition
Application parameter
Dosage
Recommended starting condition
0.5-2.0% o.w.f.
Application parameter
Fixation bath temperature
Recommended starting condition
45-60 °C
Application parameter
Treatment time
Recommended starting condition
20-30 minutes
Application parameter
Fixation bath pH
Recommended starting condition
6.0-7.0
O.w.f. means on the weight of fabric. At 0.5-2.0% o.w.f., the fixing agent quantity is 0.5-2.0 kg per 100 kg of fabric; confirm the final recipe through trials.
Thoroughly rinse the dyed fabric to remove residual dyestuff and process chemicals.
Include soaping and another rinse where required by the dyeing procedure.
Prepare a fixation bath at pH 6.0-7.0 and 45-60 °C.
Apply the selected BWF-401 dose and treat for 20-30 minutes.
Rinse with clean water before the next finishing stage.
Process control and compatibility
The product pH of 3.0-6.0 is measured in a 1% aqueous solution. It should not be used as the target pH of the fixation bath, which is 6.0-7.0.
Residual dye can interfere with fixation. Compare the treated sample for color retention, shade and appearance using the test conditions required by the buyer.
Increasing dosage or changing temperature does not automatically produce a better result. Excessive treatment can cause shade changes, so optimize one variable at a time.
Packaging and storage
Standard net packaging: 50 kg or 210 kg plastic drums, or 1,100 kg IBC containers.
Keep in a dry, well-ventilated place protected from direct sunlight. Stated shelf life: 6 months under the recommended storage conditions.
Bluwat product support
Yixing Bluwat Chemicals Co., Ltd. supplies BWF-401 for textile color fixation. Share the dye class, fabric composition, shade, current washing process and required fastness tests so that our team can discuss product selection and a suitable trial plan.
Frequently asked questions
What is BWF-401 used for?
It is a cationic color fixing agent for aftertreatment of textiles dyed with reactive and other anionic dyes. The product technical data sheet also lists garment color fixation.
How much BWF-401 should be used?
Begin evaluation within 0.5-2.0% o.w.f. The final quantity depends on the dye, shade, substrate and required treatment result.
What is the difference between product pH and bath pH?
The product pH is 3.0-6.0 when tested as a 1% aqueous solution. The recommended fixation bath pH is 6.0-7.0.
How does BWF-401 differ from BWF-422?
BWF-401 has 40% solids and a 1% solution pH of 3.0-6.0. BWF-422 has 50 ± 0.5% solids and a 1% solution pH of 7.0-10.0. Both list 45-60 °C fixation and a bath pH of 6.0-7.0; compare performance by fabric trial.
Does BWF-401 replace washing or soaping?
The recommended sequence includes thorough washing before fixation, with soaping where the dyeing procedure requires it. Maintain those preparation steps when evaluating BWF-401.
Request a product recommendation
Contact Bluwat for BWF-401 technical information, sample arrangements and a quotation. Include the required packaging and estimated quantity with your application details.
Related color fixing agents
BWF-422: 50 ± 0.5% solids with a 1% solution pH of 7.0-10.0.
BWF-303: fixation at 20-40 °C for several anionic dye classes.
Bluwat color fixing agent series: specifications and application comparison.