High-concentration rapid penetrant T-75A (Dioctyl Sodium Sulfosuccinate, DOSS) is a highly active anionic surfactant with high active content. It is easily soluble in water and convenient to operate. Special pre-dilution is usually not required before use, but it is recommended to slowly add it to the aqueous phase of the required system under high-shear stirring to ensure thorough dispersion and dissolution. Due to its suitable paste consistency and good fluidity, it can be directly pumped and metered, making it suitable for automated continuous production processes.
In different industrial applications, the timing and method of addition differ: In textile dyeing and finishing, it can be used as an additive in pretreatment scouring solutions or dye baths, added together with dyes or other auxiliaries; In pesticide formulations, it can be directly added to diluted spray solutions as a tank-mix adjuvant, or incorporated into formulations as a penetrating and spreading agent during the production stage; In household and personal care products, it can be compounded with other surfactants and added to the aqueous phase during the batching stage with stirring for dissolution; In industries such as paper, leather, coatings, and inks, it is generally added along with the process liquid during the batching or wet processing stage and mixed evenly.
It should be noted that the Guoli Chemical product database currently does not have specific recommended dosage parameters for each application category. The following dosage recommendations are general reference values based on product characteristics (penetration force ≤5 seconds at 0.1% concentration) and industry experience. Actual dosage should be determined through experiments based on process objectives, substrate properties, and formulation system.
| Industry | Application Stage | Recommended Dosage (% of Total System Weight) |
|---|---|---|
| Textile Dyeing and Finishing | Pretreatment scouring, dyeing penetration, finishing wetting | 0.1%~0.5% |
| Pesticide Formulations | Tank-mix adjuvant or formulation additive as penetrating and spreading agent | 0.05%~0.3% (spray solution) |
| Household and Personal Care Products | Laundry detergent, hard surface cleaner formulations | 0.2%~1.0% |
| Paper Industry | Waste paper deinking, pulp sizing, coating penetration enhancement | 0.05%~0.3% |
| Leather Processing | Soaking, degreasing, fatliquoring stages | 0.1%~0.5% |
| Paints and Inks | Pigment wetting and dispersion, substrate wetting | 0.1%~0.5% |
Special note: The product has extremely strong penetrating power. In a 0.1% aqueous solution, the canvas sedimentation time is only ≤5 seconds. Therefore, in normal cases, 0.1% can achieve ideal penetration effects. Excessive use may lead to increased foam or excessive wetting of certain systems, which may adversely affect process stability. It is recommended to start with a low dosage and incrementally increase through experiments to determine the optimal economical dosage.