products details

Home Products

Formaldehyde-Free Color Fixing Agent for Reactive and Sulphur Dye with Durable Color Retention as Dye Fixing Agent

Name: Formaldehyde-Free Color Fixing Agent for Reactive and Sulphur Dye with Durable Color Retention as Dye Fixing Agent
Brand: Yixing Bluwat Chemicals Co., Ltd.
SKU: BWF-436
Price: 649.80 USD
Availability: InStock

Brand Name:	BLUWAT
Model Number:	BWF-436
MOQ:	1000kgs
Price:	negotiable
Delivery Time:	7-10working days
Payment Terms:	D/A,L/C,D/P,T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

ISO9001

Model:

BWF-436

Product Type:

Formaldehyde-free Cationic Polymer Color Fixing Agent

Appearance:

Light Yellow Viscous Liquid

Solid Content:

50 ± 0.5% / 60 ± 0.5%

PH Of 1% Aqueous Solution:

2-5

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

Reactive Sulphur Dye Fixing Agent

Durable Color Retention Fixing Agent

Product Description

BWF-436 Color Fixing Agent for Reactive and Sulphur Dyes

BWF-436 is a formaldehyde-free cationic polymer fixing agent for reactive and sulphur dye aftertreatment. It is available in 50 ± 0.5% and 60 ± 0.5% solid-content versions and is intended to improve wet and washing fastness, with recommended fixation at 50-70 °C.

Product overview

BWF-436 is supplied as a light yellow viscous liquid that dissolves readily in cold water. The grade is intended for dyed textiles where wet and washing fastness are important selection criteria. Both concentration versions have a specified 1% aqueous solution pH of 2.0-5.0 and the same published starting ranges for dosage, temperature and treatment time. Select the concentration together with the application recipe and packing requirement; the 60% version should not be treated as a guaranteed performance upgrade.

Key features

Specified for reactive and sulphur dye applications.

Intended to improve wet and washing fastness after dyeing.

Two solid-content versions: 50 ± 0.5% and 60 ± 0.5%.

Recommended treatment at 50-70 °C for 15-20 minutes.

Dosage range of 2.0-7.0% o.w.f., depending on the color.

Technical specifications

Property

50% version

60% version

Model

BWF-436

Ionic character

Cationic polymer

Appearance

Light yellow viscous liquid

Solid content

50 ± 0.5%

60 ± 0.5%

pH of 1% aqueous solution

2.0-5.0

Water solubility

Readily soluble in cold water

Applications

BWF-436 is suitable for evaluation after reactive or sulphur dyeing when wet or washing fastness requires improvement. The actual textile should be tested using the required washing method, temperature and acceptance criteria. The fixation bath temperature is a process setting; it does not establish the temperature or grade that the finished fabric will achieve in a washing fastness test.

Recommended application method

Application parameter

Recommended starting condition for both versions

Dosage

2.0-7.0% o.w.f., depending on color

Fixation bath temperature

50-70 °C

Treatment time

15-20 minutes

O.w.f. means on the weight of fabric. The 2.0-7.0% range corresponds to 2-7 kg of fixing agent per 100 kg of fabric. Both technical data sheets list this range; establish the final recipe separately for the selected concentration.

Complete dyeing and remove residual dye by thorough rinsing.

Include soaping and a further rinse where required by the dyeing process.

Prepare the fixation bath and select the dosage for the actual color and concentration.

Apply BWF-436 at 50-70 °C for 15-20 minutes.

Rinse with clean water before subsequent finishing.

Establish the fixation bath pH during process trials with technical guidance. The 2.0-5.0 specification refers to a 1% aqueous product solution.

Process control and compatibility

When changing from 50% to 60% solids, identify the exact supplied grade and repeat the relevant textile trial. A solids calculation can assist comparison, but it does not by itself validate a replacement recipe.

The pretreatment washing stage remains important. Residual dye or chemicals can affect the fixation result and the appearance of the finished textile.

Check for shade change when adjusting dosage and temperature. Approve the process against the required fastness tests rather than assuming a universal improvement or fixed test grade.

Packaging and storage

The 50% version is listed in 50 kg, 125 kg or 200 kg net plastic drums. The 60% version is listed in 125 kg net plastic drums. State the solid-content version when requesting a quotation.

Keep in a dry, well-ventilated place away from direct sunlight. Stated shelf life for both versions: 6 months under the recommended storage conditions.

Bluwat product support

Yixing Bluwat Chemicals Co., Ltd. supplies BWF-436 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-436 used for?

BWF-436 is intended for reactive and sulphur dye fixation, with emphasis on improving wet and washing fastness.

Which solid-content versions are available?

Two versions are listed: 50 ± 0.5% and 60 ± 0.5%. They share the BWF-436 model designation, so specify the concentration on the inquiry and order.

What dosage should be used?

Both versions list 2.0-7.0% o.w.f., depending on the color. The final dose should be selected by trial for the actual concentration, fabric and shade.

Can the 60% version replace the 50% version at the same dose?

A direct substitution should be validated. Confirm the dosing basis, bath behavior, shade and fastness result before changing an approved recipe.

Does the 50-70 °C treatment range guarantee washing performance at that temperature?

No. That range describes the fixation bath. Finished-fabric washing fastness must be evaluated under the specified test method and its own test conditions.

Request a product recommendation

Contact Bluwat for BWF-436 technical information, sample arrangements and a quotation. Include the required packaging and estimated quantity with your application details.

Related color fixing agents

BWF-303: reactive, direct, sulphur and indigo dye applications at 20-40 °C.

BWF-658: reactive-dyed blended textiles and printed fabrics.

Bluwat color fixing agent series: compare all models and both BWF-436 versions.

Tags:

Water Purifying Chemicals

Water Decoloring Agent

Anionic Polyacrylamide

Cationic Polyacrylamide

Polyaluminium Chloride

Quaternary Ammonium Polymer

Nonionic Polyacrylamide

Color Removal Chemical

Drilling Mud Additives

Dicyandiamide Formaldehyde Resin

Polyelectrolyte Flocculant

Ferric Sulphate

Color Fixing Agent

Coagulant And Flocculant

Plant Based Deodorant

Anti Foaming Chemicals

Chemical Demulsifier