Mastering the volume ratio between liquid chemicals becomes essential after establishing the dosage and bath ratio. From pre-wash agents to stain removers, adjusting the mix allows laundries to handle tough stains and special fabrics with greater control and flexibility.
- The core logic of volume ratio
Definition: Two or more liquids are mixed in volume ratio, such as hydrocarbon solvent: soap oil = 7:1
Advantages: Flexible preparation of small-dose formulas to reduce chemical waste (1 ml test solution can be prepared)
- Typical ratio schemes and scenarios
| Recipe Name | Volume ratio | Effect |
| Dry cleaning pretreatment fluid | Hydrocarbon: soap oil = 7:1 | Dissolves water-soluble stains (sweat/sugar stains) |
| Mixed oil stain remover | Pretreatment agent: degreasing agent: water = 2:1:7 | Breaks down grease/protein complex stains |
| Color Protectant | Softener: Antioxidant = 5:1 | Prevent dye migration/fading |
- The golden rule of volume ratio operation
Tool accuracy: Pipette error ≤ 0.1ml, measuring cup transparent with scale;
Mixing order:
Add low-density liquid first (such as hydrocarbon solvent);
Highly active ingredients are added later (such as oxidants);
Water-based solutions are diluted last.
Risk Warning:
Acid/alkali liquid mixing → heat splashing (needs to be added slowly in steps);
Organic solvents evaporate → Operate under ventilated conditions.
From milliliter-level precise measurement to dynamic control of bath ratio and then to synergistic efficiency enhancement of volume ratio, the three articles progressively reveal the complete technical chain of “using the right chemicals” in laundry shops. Mastering this system means not only being able to clean clothes, but also cleaning the “invisible stains” in costs – inefficiency and waste.
