Polydadmac Cationic Polymer for Paper Retention, Drainage and Dry Strength Aid
BLUWAT Chemicals Factory Video
Watch our factory video to learn more about BLUWAT Chemicals production, packaging and water treatment chemical supply capability.
Product Overview
Bluwat BLU DA Series Polydadmac is a liquid cationic coagulant based on Poly(dimethyldiallylammonium chloride), also known as PolyDADMAC, PDADMAC or PolyDMDAAC. It is widely used in wastewater treatment, textile color fixing, color removal, sludge dewatering and industrial water clarification.
In dyeing effluent treatment, wastewater often contains residual dyes, auxiliaries, surfactants, fine suspended solids and colloidal organic matter. These contaminants may cause strong color, unstable floc formation, cloudy effluent and higher treatment pressure on downstream systems.
Polydadmac provides strong cationic charge neutralization. It can neutralize negatively charged dye molecules and colloidal particles, helping them aggregate into larger flocs. These flocs can then be removed by sedimentation, dissolved air flotation or filtration.
In textile processing, Polydadmac can also be used as a color fixing agent in suitable systems. Its cationic structure can interact with anionic dyes and negatively charged fiber surfaces, helping improve dye retention and reduce color bleeding after washing.
This makes Polydadmac a practical chemical for both dyeing effluent treatment and textile color fixing applications.
Product Name
Polydadmac Cationic Coagulant for Dyeing Effluent Treatment and Color Fixing Agent
Chemical Name
Poly(dimethyldiallylammonium chloride)
CAS Number
26062-79-3
Other Names
Product Type
Liquid cationic coagulant
Quaternary ammonium polymer
Organic coagulant for dye wastewater
Textile color fixing agent
Dyeing effluent clarification polymer
Color removal and flocculation aid
Main Applications
Why Use Polydadmac for Dyeing Effluent Treatment
Dyeing effluent is often difficult to treat because dye molecules and fine particles can remain stable in water. Many of these pollutants carry negative charges. Without enough charge neutralization, the wastewater may show poor coagulation, weak flocs and unsatisfactory color removal.
Polydadmac has high cationic charge density. When added into dyeing effluent, it helps neutralize negative charges on dye particles, colloids and suspended impurities. This reduces particle stability and supports the formation of larger flocs.
After proper coagulation and flocculation, color bodies and suspended contaminants can be separated more easily. The treated water becomes clearer, and the following treatment units can operate more steadily.
Why Use Polydadmac as a Color Fixing Agent
In textile dyeing and finishing, color fastness is an important quality requirement. Some dyes may bleed or wash out during later processing or washing, especially when fixation is not strong enough.
Polydadmac has a cationic quaternary ammonium structure. In suitable textile systems, it can interact with anionic dyes and fiber surfaces, helping improve dye fixation and reduce color loss.
As a color fixing agent, Polydadmac can be used to support:
The exact dosage and process should be confirmed according to dye type, fabric type, bath condition and customer testing results.
Key Benefits
Technical Specifications
| Item | Specification |
|---|---|
| Product Series | BLU DA Series Polydadmac Liquid |
| Chemical Name | Poly(dimethyldiallylammonium chloride) |
| CAS Number | 26062-79-3 |
| Appearance | Colorless to light yellow liquid |
| Product Type | Liquid cationic polymer |
| 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 |
| Main Use | Dyeing effluent treatment, color removal, color fixing and wastewater clarification |
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 for Dyeing Effluent Treatment
The final treatment process should be confirmed by jar test because dyeing effluent quality can vary by dye type, fabric type, auxiliary chemicals, pH, salinity, COD and color strength.
A common treatment process may include:
- Collect representative wastewater from the equalization tank
- Test pH, color, turbidity, COD and suspended solids
- Dilute Polydadmac to the recommended working concentration
- Add Polydadmac and mix rapidly for charge neutralization
- Add PAC if stronger coagulation and further color removal are required
- Adjust pH according to jar test results if needed
- Add diluted PAM solution to enlarge and strengthen flocs
- Separate flocs by sedimentation, dissolved air flotation or filtration
- Check treated water color, clarity and sludge condition
Recommended Use as Textile Color Fixing Agent
For textile color fixing applications, Polydadmac should be tested according to the specific textile process. Important factors include dye type, fabric material, bath pH, treatment temperature, process time and required color fastness.
A typical evaluation may include:
- Prepare treated fabric or dyeing bath sample
- Add Polydadmac at different dosage levels
- Control bath pH and treatment time
- Rinse and dry fabric according to the process requirement
- Test color bleeding, washing fastness and fabric handle
- Select the most suitable dosage according to performance and cost
Use with PAC and PAM
For dyeing effluent treatment, Polydadmac can be used alone or together with PAC and PAM.
Polydadmac provides cationic charge neutralization and helps destabilize dye particles.
PAC strengthens coagulation and helps improve color removal and suspended solids reduction.
PAM helps enlarge flocs, improve settling speed and support sludge separation.
This combined program is useful for textile wastewater systems with strong color, unstable flocs, cloudy effluent or fluctuating production wastewater.
Dilution and Dosage
When used alone for water treatment, Polydadmac is recommended to be diluted to 0.5–5% concentration based on solid content before dosing.
The actual dosage should be determined by jar test. It depends on dye type, color strength, wastewater pH, turbidity, suspended solids, COD composition and treatment target.
The dosing point and mixing speed should be carefully controlled. Polydadmac should be mixed evenly with wastewater during charge neutralization. After flocs are formed, excessive mixing should be avoided to prevent floc breakage.
Suitable Treatment Units
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 containers tightly closed when not in use. Please refer to the product label, Technical Data Sheet and MSDS for detailed handling, storage and shelf life information.
Why Choose Bluwat
Bluwat is a manufacturer and exporter of water treatment chemicals for textile, dyeing, printing, paper, mining, municipal and industrial wastewater treatment applications. We supply Polydadmac, PAC, PAM, Polyamine, Water Decoloring Agent and other coagulants and flocculants for different treatment systems.
For dyeing effluent treatment and textile color fixing applications, Bluwat can provide product selection, jar test support, sample evaluation and technical documents including TDS, MSDS and COA. Different Polydadmac grades are available to match different wastewater quality and process requirements.
Request a Sample
If your dyeing effluent has strong color, unstable flocs, cloudy final water or color fixing challenges, contact Bluwat for Polydadmac sample and technical support. Our team can help recommend a suitable grade and testing program based on your actual application.