UR-2821, Dispersant ( Dispersing Agent)
UR-2821 Dispersant ( Dispersing Agent) is a highly effective anionic dispersing agent specifically designed for textile pretreatment and dyeing processes. It effectively prevents dye particle aggregation and precipitation, ensuring uniform dispersion and stable suspension of dyes in water, thereby improving dyeing speed and dye uptake.
Its excellent dispersibility and thermal stability significantly reduce the risk of dye defects such as color spots and streaks, improving dyeing reproducibility and leveling effects.
UR-2821 Dispersant ( Dispersing Agent) is suitable for the pretreatment or dyeing stage of high-temperature and high-pressure dyeing with disperse dyes. It is commonly used in polyester and its blended fabrics and is widely applied in chemical fiber printing and dyeing factories, knitting factories, and functional fabric manufacturers.
UR-2821 Dispersant ( Dispersing Agent) is easy to use and highly compatible, helping to improve dyeing quality and production efficiency, making it an ideal additive for creating stable process flows.
Technical Data Sheet
Introduction
UR-2821 Dispersant (Dispersing Agent) indirectly improves washing efficiency and product qualification rate by stabilizing the dispersion state of dyes and reducing precipitative defects.
Meanwhile, its chemical resistance lowers the risk of process fluctuations, making it particularly suitable for the processing of stretch denim that requires precise control.
Characteristics
1. Easily soluble in water and can be mixed with various surfactant.
2. Resistant to acid, alkali, hard water and inorganic salts
3. Good dispersing and emulsifying properties
4. Non-ionic surfactant.
Specification
| Item | Index |
| Appearance | Off-white to light yellow flakes |
| Color ( Pt-Co), <= | 30 |
| Ph(1% aqueous solution) | 5.0-7.0 |
| Cloud Point, ℃, >= | 85 |
| Calcium Soap Dispersing Powder, %, >= | 95% of the standard sample |
Application Methods
1. Used as a strong dispersant in the one-bath dyeing process of wool/acrylic blended fabrics.
Usage:
● For light color dyeing: approximately 1% (based on fabric weight).
● For deep and concentrated color dyeing: approximately 0.5% (based on fabric weight).
2. Used as an anti-precipitant when using acid dyes, and cationic dyes.
3. In denim washing, it is mainly used to improve dyeing stability and processing efficiency.
Packaging and Storage
● Package: in 25kg paper bags
● Handle with care (light loading and unloading)
● Store in a cool, dry and well-ventilated place
● Shelf life: 2 years
Notes:
The application methods listed in the manual may yield different results due to variations in the specific processes and equipment conditions of the user units. Before using, please determine the optimal addition concentration and dosage through tests based on actual circumstances. This introduction is for reference only while selecting the product.
【If you have any technical or usage questions, please contact our company】
About us
UniRule Biotech was established in Shanghai, dedicating to research, develop and manufacture, sales enzymes and textile auxiliaries in order to provide the textile manufacturers with sustainable textile solutions. We have passed the quality management system certification ISO9001 in the enzyme preparation industry and textile auxiliary industry.
Our textile enzymes and auxiliaries have been exported to 30 countries such as USA, Mexico, Brazil, Peru, Colombia, Ecuador, Korea, Japan, India, Singapore, UAE,Turkey, India, Spain, Finland, Morocco, Nigeria, Ecudor, South Africa etc…
Our Services
1. Will give response with 12 hours after receive the customer inquiry.
2. Dedicating to high quality, competitive price, stable supply chain, prompt shipment and good after-sales service.
3. Strictly select the qualified raw materials for high-standard productions.
4. Provide with OEM/ODM services.
5. Free samples could be offered for lab tests.
6. Quick delivery of samples and bulk shipments: available sample stock. 7-10 days available shipment for bulks.
7. We have strong and stable cooperation with Express, such as DHL, FEDEX, UPS, TNT, EMS.
8. We could accept to use your reliable forwarders or our existent forwarders for bulk shipments.






