PolyDADMAC Cationic Flocculant Polimer for Textile Color Removal and Fixing
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Product Overview
Bluwat BLU DA Series PolyDADMAC is a liquid cationic flocculant polymer based on Poly(dimethyldiallylammonium chloride). It is also known as PolyDADMAC, PDADMAC, PolyDMDAAC or cationic organic coagulant.
For textile and dyeing industries, color control is one of the most important treatment challenges. Wastewater from dyeing, printing, washing and finishing processes may contain reactive dyes, disperse dyes, pigment residues, auxiliaries, surfactants and suspended solids. These pollutants often remain stable in water and are difficult to remove by simple sedimentation.
PolyDADMAC provides strong cationic charge density, which helps neutralize negatively charged dye molecules and colloidal particles. After charge neutralization, the pollutants can aggregate into larger flocs and become easier to separate by sedimentation, flotation or filtration.
In textile processes, PolyDADMAC can also be used as a textile color fixing agent. Its cationic structure helps improve dye fixation performance and reduce color bleeding in certain textile applications. For wastewater treatment, it can be used alone or together with inorganic coagulants such as Polyaluminium Chloride to improve color removal and effluent clarity.
What Is PolyDADMAC
PolyDADMAC is a quaternary ammonium cationic polymer with high charge density. It is completely soluble in water and is widely used in water treatment, wastewater treatment, textile color fixing, color removal, paper making, mining, oil industry and sludge dewatering.
Because of its high positive charge, PolyDADMAC is especially suitable for treating wastewater that contains negatively charged colloids, dyes and fine suspended particles.
Product Name
PolyDADMAC Cationic Flocculant Polimer for Textile Color Removal and Fixing
Chemical Name
Poly(dimethyldiallylammonium chloride)
CAS Number
26062-79-3
Product Type
Liquid cationic flocculant polymer
Organic cationic coagulant
Textile color removal chemical
Textile color fixing agent
Wastewater treatment polymer
Main Applications
Textile dye wastewater color removal
Printing and dyeing wastewater treatment
Textile effluent clarification
Textile color fixing process
Color bleeding reduction in textile processing
Industrial wastewater coagulation
Effluent pretreatment before biological treatment
Sludge dewatering support
Paper making and process water treatment
Mining and industrial water clarification
Why PolyDADMAC Is Used for Textile Color Removal
Textile dye wastewater usually contains strong color, high organic load and fine suspended solids. Many dye particles and colloidal impurities carry negative charges, making them stable in water. Without proper charge neutralization, flocs may be small, slow settling or easy to break.
PolyDADMAC works as a cationic flocculant and organic coagulant. It neutralizes the negative charge of dye particles and colloids, reduces electrostatic repulsion and helps form compact flocs. This improves color reduction, turbidity removal and solid liquid separation.
For textile wastewater with difficult color removal, PolyDADMAC is often used before or together with PAC and PAM. PolyDADMAC helps with charge neutralization and color control, PAC improves coagulation and clarification, and PAM helps build larger flocs for faster settling.
Why PolyDADMAC Is Used for Textile Color Fixing
In textile processing, dye fixation is important for improving fabric color fastness and reducing color loss during washing. PolyDADMAC has a strong cationic structure and can interact with anionic dyes or negatively charged fiber surfaces in suitable systems.
As a textile color fixing agent, it can help improve dye retention and reduce dye bleeding. This makes it useful not only for wastewater treatment, but also for textile finishing processes where color stability is required.
The exact application method and dosage should be confirmed according to fabric type, dye type, process conditions and customer testing results.
Key Benefits
High cationic charge density for strong charge neutralization
Suitable for textile color removal and dye wastewater clarification
Can be used as textile color fixing agent in suitable processes
Liquid form for easy dilution and dosing
Completely soluble in water
Can be used alone or together with PAC
Effective at low dosage after proper jar testing
Helps improve floc formation and settling performance
Supports sludge dewatering and solid liquid separation
Wide pH adaptability for different wastewater conditions
Available in different solid content and viscosity grades
Manufacturer supply with TDS, MSDS, COA and sample support
Technical Specifications
| Item | Specification |
|---|---|
| Product Series | BLU DA Series PolyDADMAC Liquid |
| Appearance | Colorless to light yellow liquid |
| Chemical Type | Liquid cationic polymer |
| Chemical Name | Poly(dimethyldiallylammonium chloride) |
| CAS No. | 26062-79-3 |
| Solid Content | 20–50% |
| pH Value | 3.0–7.0 |
| Specific Gravity at 25°C | 1.01–1.10 |
| Molecular Weight | Low, medium, high and very high grades available |
| Brookfield Viscosity at 25°C | Below 200 cps to above 15000 cps depending on grade |
| Solubility | Soluble in water |
| Application | Textile color removal, color fixing, wastewater treatment and sludge dewatering |
Available Liquid Grades
| Grade | Solid Content | Molecular Weight | Brookfield Viscosity at 25°C |
|---|---|---|---|
| DA 201 | 19.0–21.0% | Low | Below 200 cps |
| DA 202 | 19.0–21.0% | Medium | 200–700 cps |
| DA 203 | 19.0–21.0% | Medium | 700–1000 cps |
| DA 204 | 19.0–21.0% | High | 1000–2000 cps |
| DA 205 | 19.0–21.0% | Very High | 2000–3000 cps |
| DA 401 | 39.0–41.0% | Low | Below 500 cps |
| DA 402 | 39.0–41.0% | Medium | 500–1000 cps |
| DA 403 | 39.0–41.0% | Medium | 1000–3000 cps |
| DA 404 | 39.0–41.0% | High | 3000–5000 cps |
| DA 405 | 39.0–41.0% | High | 5000–8000 cps |
| DA 406 | 39.0–41.0% | Very High | 8000–12000 cps |
| DA 407 | 39.0–41.0% | Very High | 12000–15000 cps |
| DA 408 | 39.0–41.0% | Very High | Above 15000 cps |
| DA 451 | 44.0–46.0% | High | 8000–12000 cps |
| DA 501 | 49.0–51.0% | Low Medium | 1000–2000 cps |
| DA 502 | 49.0–51.0% | Medium | 2000–3000 cps |
| DA 503 | 49.0–51.0% | High | 3000–5000 cps |
| DA 504 | 49.0–51.0% | High | 5000–8000 cps |
| DA 505 | 49.0–51.0% | Very High | 8000–12000 cps |
| DA 506 | 49.0–51.0% | Very High | 12000–15000 cps |
| DA 507 | 49.0–51.0% | Very High | Above 15000 cps |
Recommended Use in Textile Wastewater Treatment
The treatment process should be adjusted according to wastewater color, COD, pH, salt content, suspended solids and dye type. A jar test is recommended before full scale dosing.
A common treatment process is:
- Check wastewater pH and color condition
- Add diluted PolyDADMAC solution and mix rapidly
- Add PAC if stronger coagulation is required
- Adjust pH to the suitable range if needed
- Add diluted PAM solution to enlarge flocs
- Allow sedimentation, flotation or filtration
- Check treated water color, turbidity and sludge condition
For many textile dye wastewater systems, PolyDADMAC can improve the first stage of coagulation and make the following PAC and PAM treatment more stable.
Dilution and Dosage
When PolyDADMAC is used alone, it is recommended to dilute it to 0.5–5% concentration based on solid content before dosing.
The actual dosage depends on wastewater color strength, turbidity, contaminant concentration and treatment target. The most economical dosage should be confirmed by laboratory jar test.
The dosing point and mixing speed are important. The chemical should be mixed evenly with wastewater, but excessive mixing should be avoided after flocs are formed, because strong shear may break the flocs and reduce settling performance.
Compatibility with PAC and PAM
PolyDADMAC can be used alone or together with inorganic coagulants such as Polyaluminium Chloride. In textile wastewater treatment, a combined chemical program is often more effective.
PolyDADMAC provides charge neutralization and color control.
PAC improves coagulation and clarification.
PAM helps form larger and stronger flocs for faster settling and better sludge separation.
Bluwat can recommend a suitable combination according to customer wastewater samples and treatment goals.
Packaging
25L plastic drum
200L plastic drum
1000L IBC drum
Customized packaging can be discussed according to order quantity and shipment requirements.
Storage
Store in original containers in a cool and dry place. Keep away from heat, flame and direct sunlight. Keep the container tightly closed when not in use. Please refer to the product label, TDS and MSDS for more detailed storage and handling information.
Why Choose Bluwat PolyDADMAC
Bluwat supplies PolyDADMAC, PAC, PAM, Polyamine, Water Decoloring Agent and other water treatment chemicals for textile, dyeing, paper, mining, municipal and industrial wastewater treatment applications.
For textile wastewater customers, we can provide product selection support, jar test guidance, sample evaluation and technical documents including TDS, MSDS and COA. Different PolyDADMAC grades are available to match different color removal, color fixing and wastewater clarification requirements.
Request a Sample
If your textile wastewater has high color, unstable flocs, poor clarification or color bleeding problems, please contact Bluwat for a suitable PolyDADMAC grade recommendation. Our technical team can help you test the correct dosage and chemical combination for your treatment system.