XPO-4 (Glycerol Polyoxyethylene Ether Oleate) is a nonionic surfactant developed by Guoli Chemical, specifically tailored for high-temperature and high-pressure dyeing processes of polyester (polyester fiber) and its blends. Its most prominent core advantage is excellent leveling and retarding properties — it possesses outstanding migration ability, effectively reducing the dye uptake rate, ensuring uniform adsorption and diffusion of disperse dyes on the fiber surface and internally, thereby significantly preventing dyeing defects such as color spots, shade differences, and color dots, greatly improving the one-shot success rate of dyeing and color reproducibility.
In terms of dye bath stability, XPO-4 exhibits superior emulsifying and dispersing capabilities, with strong emulsifying power and dispersing ability for disperse dyes, effectively preventing dye particles from agglomerating and settling in the dye bath, maintaining high stability. Meanwhile, this product features exceptional high-temperature stability, maintaining stable physicochemical properties under high-temperature and high-pressure conditions without demulsification or stratification, ensuring smooth operation of the dyeing process at high temperatures. Furthermore, its broad chemical compatibility allows it to remain effective under different water quality conditions and process pH levels, with excellent resistance to acids, alkalis, and hard water.
At room temperature, this product appears as a light yellow to yellow transparent viscous liquid. It is a low acute toxicity substance (LD₅₀ > 5000 mg/kg), with a flash point > 150°C, non-flammable liquid, and biodegradability > 70% (OECD 301B method), combining high efficiency with good environmental friendliness.
| Parameter Item | Specification/Index |
|---|---|
| Product Name | XPO-4 (Glycerol Polyoxyethylene Ether Oleate) |
| Aliases | Polyoxyethylene Glycerol Ether Oleate; Polyoxyethylene Glycerol Monooleate; Oleic Acid Polyoxyethylene Glyceride |
| Ion Type | Nonionic Surfactant |
| Appearance (Room Temperature) | Light yellow to yellow transparent viscous liquid |
| Flash Point | > 150 °C (Non-flammable liquid) |
| Acute Oral Toxicity LD₅₀ | > 5000 mg/kg (Rat, low acute toxicity) |
| Biodegradability | > 70% (OECD 301B, readily biodegradable) |
| Fish Acute Toxicity EC₅₀ | > 100 mg/L |
| GHS Classification | Eye Irritation Category 2 (H319); Acute Aquatic Toxicity Category 3 (H402) |
Main Application: As a dedicated leveling agent for disperse dye high-temperature and high-pressure dyeing processes of polyester and its blends. It is recommended to add directly to the dye bath, utilizing its retarding and migration properties to control dye uptake rate, improving levelness and color reproducibility.
Extended Applications: Can be used as a high-quality industrial emulsifier and dispersant, suitable for formulations such as inks, coatings, pesticide emulsifiable concentrates; also as a compounding component for synthetic fiber spinning oils, imparting good smoothness, cohesion, and antistatic properties to fibers, enhancing spinnability and post-processing performance.