As a non-ionic surfactant, common problems encountered during the use of Peregal O-20 typically include: poor emulsification effect, emulsion stratification or demulsification, slow dissolution rate, unsatisfactory solubility, and turbidity or precipitation when compounded with other auxiliaries. Most of these issues are related to usage conditions rather than product quality problems, and can often be solved by adjusting process parameters.
First, conduct a self-check of usage conditions: Confirm whether the water temperature is suitable (Peregal O-20 is a waxy solid; it is recommended to pre-dissolve or melt it in 40-60°C hot water with stirring); confirm whether the pH environment is reasonable (this product has a wide acid and alkali resistance range, generally stable at pH 3-11); confirm whether the feeding sequence and method are appropriate (when compounding with other surfactants, it is recommended to add in batches with thorough stirring); confirm whether attention has been paid to high water hardness (the product itself is hard water resistant, but may be affected when compounded with anionic auxiliaries that are not hard water resistant).
If the self-check does not resolve the issue, Hai'an County Guoli Chemical Co., Ltd. provides multi-channel technical support. Due to the wide application fields of Peregal O-20 (textile printing and dyeing, pesticide formulations, daily chemicals, industrial cleaning, metal processing, papermaking, leather, etc.), application processes vary significantly across different industries. It is recommended to contact the manufacturer for targeted technical guidance.
| Common Problem | Possible Cause | Recommended Measure |
|---|---|---|
| Unstable emulsion, stratification or demulsification | HLB value mismatch; insufficient dosage; special oil phase type; inadequate mixing | Confirm that the HLB value of Peregal O-20 is about 15-16, suitable for O\/W systems; appropriately increase dosage or compound with low-HLB emulsifiers; increase mixing intensity and homogenization time |
| Slow dissolution with lumps | Low water temperature; direct addition into cold water; excessive one-time feeding amount | Use 40-60°C warm water for pre-dissolution; add slowly with stirring; or pre-chip the solid before adding |
| Turbidity when compounded with anionic\/cationic auxiliaries | pH mismatch; salting out due to high concentration; interaction between ionic auxiliaries and polyoxyethylene chains | Adjust compounding sequence: first dissolve Peregal O-20 in water before adding other auxiliaries; reduce total active matter concentration in the system; add an appropriate amount of solubilizer |
| Unsatisfactory leveling effect or color spotting | Insufficient dosage; unsuitable dye bath temperature or time; mismatch with dye type | Peregal O-20 has good affinity for direct dyes and vat dyes; dosage is generally 0.5-2g\/L; appropriately extend dyeing time; adjust dyeing temperature |
| Abnormal product color or state (darkening, caking) | Improper storage; moisture absorption; high temperature | Check storage conditions: should be cool, dry, ventilated, in a sealed container, away from strong oxidizers and strong acids\/alkalis; stop using abnormal products |
Hai'an County Guoli Chemical Co., Ltd. provides the following technical support methods for Peregal O-20 users: