Dishwash liquid formulation needs a balanced combination of cleaning surfactants, viscosity control, pH adjustment and supporting ingredients. Formulation 3 in the provided formula book uses SLES 28%, LABSA, HPMC and salt as key components of the formulation system.
100 KG Dishwash Liquid Formula
| Raw Material | Quantity |
|---|---|
| Water | 75 kg |
| Citric Acid | 450 g |
| LABSA | 4.5 kg |
| Water for LABSA | 5 kg |
| Caustic Soda | 900 g |
| SLES 28% | 3.3 kg |
| Water-Soluble Perfume | 120 g |
| HPMC | 700 g |
| Hot Water for HPMC | 6 kg |
| Salt | 1.5 kg |
| Water for Salt | 7 kg |
| Colour | 50 g |
| CMIT/MIT or Methyl Paraben/Propyl Paraben | 50 g |
The quantities above are taken directly from Formulation 3 in the source.
Manufacturing Process
Step 1 — Prepare the LABSA Solution
Take 4.5 kg LABSA and dilute it with 5 kg water.
Separately prepare the caustic soda solution using 900 g caustic soda.
The source instructs to neutralize the acid slurry with caustic soda before proceeding with the remaining ingredients.
Step 2 — Prepare the Main Batch
Take the specified 75 kg water in the main mixing vessel.
Add the ingredients according to the formulation and mix properly.
Step 3 — Add SLES 28%
Add 3.3 kg SLES 28% to the batch and mix until uniformly incorporated.
Step 4 — Add Neutralized LABSA
Add the prepared neutralized LABSA solution to the main batch.
Mix thoroughly to obtain a homogeneous mixture.
Step 5 — Prepare HPMC
Take 700 g HPMC and disperse/dissolve it using 6 kg hot water, as specified in the source.
The source specifically instructs that the HPMC solution should be mixed into the batch immediately before the product becomes thick.
Step 6 — Add Citric Acid
Add 450 g citric acid as specified in the formulation.
The source does not provide a separate final pH target for Formulation 3, so the article should not assign a specific finished-product pH to this formula without additional testing.
Step 7 — Add Preservative
The formulation specifies 50 g CMIT/MIT OR Methyl Paraben/Propyl Paraben.
Step 8 — Add Perfume and Colour
Add:
- Water-soluble perfume — 120 g
- Colour — 50 g
Mix gently until uniformly distributed.
Step 9 — Adjust Viscosity with Salt
Prepare 1.5 kg salt with 7 kg water and add it to the batch as specified.
Because the source notes generally that thickener quantities can be adjusted according to product requirements, the final viscosity should be evaluated rather than assuming the listed salt quantity will produce exactly the same thickness with every raw-material grade.
Role of Important Ingredients
SLES 28%
A primary surfactant in the formulation, contributing to the cleaning and foaming system.
LABSA
An important cleaning surfactant. It is first neutralized with caustic soda before being incorporated into the formulation.
HPMC
Used as the thickening component in this formulation. The source specifically instructs preparing it with hot water and adding it immediately before thickening.
Caustic Soda
Used for neutralizing the acid slurry/LABSA.
Citric Acid
Included in the formulation as specified.
Salt
Used as part of the viscosity-adjustment system.
CMIT/MIT or Methyl Paraben/Propyl Paraben
The formulation gives these as alternative preservative options.
Water-Soluble Perfume
Provides fragrance to the finished dishwash.
Colour
Provides the desired visual appearance.
Important Manufacturing Tips
HPMC addition is particularly important: The source says to dissolve HPMC in hot water and add it to the batch immediately before it gets thick.
Neutralize LABSA properly: The source specifies neutralizing the acid slurry with caustic soda before adding the other chemicals.
Test a small batch first: The source recommends small-batch testing because chemical quality can affect the required quantities.
Frequently Asked Questions
1. What is the batch size of this dishwash formulation?
The formulation is presented on a 100 kg batch basis.
2. How much SLES 28% is used?
3.3 kg SLES 28% is specified.
3. How much LABSA is used?
The formula contains 4.5 kg LABSA + 5 kg water.
4. How much caustic soda is used?
The listed quantity is 900 g.
5. Why is LABSA neutralized?
The source specifically instructs that the acid slurry should be neutralized with caustic soda before adding the other chemicals.
6. How much HPMC is required?
700 g HPMC + 6 kg hot water is specified.
7. How should HPMC be added?
The source says to dissolve HPMC in hot water and mix it into the batch immediately before it gets thick.
8. How much salt is used?
1.5 kg salt + 7 kg water is listed.
9. How much perfume is required?
The formulation specifies 120 g water-soluble perfume.
10. How much colour is used?
50 g colour is specified.
11. Which preservative can be used?
The source lists CMIT/MIT or Methyl Paraben/Propyl Paraben — 50 g.
12. How much citric acid is used?
450 g citric acid is specified.
13. Can the thickener quantity be changed?
The source notes that thickener quantities can be changed according to the product requirement.
14. Should this formula be tested before commercial production?
Yes. The source recommends making a small batch first and moving to a larger batch only after satisfactory results.
15. Does the source specify the exact final pH?
No separate final pH target is stated for Formulation 3 in the provided source. Therefore, the finished-product pH should be determined and verified during formulation testing rather than assigning an unsupported value.
Conclusion
Dishwash Liquid Formulation 3 is a practical formulation built around LABSA, SLES 28%, HPMC and salt, with citric acid, preservative, perfume and colour completing the formulation. Its most distinctive feature is the use of HPMC prepared in hot water, which the source instructs to add immediately before thickening.
As with the other formulations in the book, small-batch testing is recommended before moving to commercial-scale production because raw-material quality can influence the final result.