P21.1
General Liquid Detergent Batch Process
Procedure 32 of 40 · Chapter 21 · §21.1.1
1 table 0 notes
Table 1
| Step | Ingredient Class | Specific Materials | Temperature (°C) | Mixing Speed (RPM) | Duration (min) | QC Check |
|---|---|---|---|---|---|---|
| 1 | Water base | Deionized water | 30–40 | 40–60 | 5 | Clarity, temperature |
| 2 | Anionic surfactant | LAS acid + NaOH, or SLES 70% | 35–45 | 40–60 | 15–20 | pH, clarity |
| 3 | Builders | STPP, sodium citrate, EDTA | 35–45 | 50–70 | 10–15 | Complete dissolution |
| 4 | Nonionic surfactant | AEO-9, C12–14 APG | 30–40 | 40–60 | 10 | Homogeneity |
| 5 | Amphoteric | CAPB 30% | 30–35 | 30–50 | 10 | pH check |
| 6 | pH adjustment | Citric acid (50%) or NaOH (30%) | 30–35 | 30–40 | 5–10 | pH 7.0–8.5 |
| 7 | Viscosity modifier | NaCl (salt curve) or HEC/CMC slurry | 30–35 | 40–60 | 10–15 | Viscosity target |
| 8 | Functional additives | Enzymes, optical brightener, preservative | <30 | 20–30 | 5–10 | Activity assay |
| 9 | Sensory additives | Fragrance, colorant | <30 | 15–25 | 5 | Color, odor |
| 10 | Deaeration | Vacuum (–0.06 to –0.08 MPa) or static hold | 25–30 | 10–15 | 15–30 | Visual clarity |