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“Kule tozu” (literally tower powder) is the base raw material used in the production of powdered detergents. It is not a final product but rather an intermediate granulated mixture obtained in detergent spray-drying towers.
Raw materials: LABSA (Linear Alkyl Benzene Sulfonic Acid), water, sodium sulfate, and sometimes sodium carbonate.
Spray-drying tower: The liquid mixture is pumped to the top of the tower and atomized through high-pressure nozzles.
Heat treatment: Hot air inside the tower rapidly dries the atomized droplets, turning them into granules.
Result: A white, odorless, free-flowing powder known as kule tozu.
This process is highly dependent on temperature control and atomization efficiency, making it a complex, equipment-driven production step.
| Property | Description |
|---|---|
| Appearance | White, granular, odorless |
| Solubility | Easily soluble in water |
| Density | ~0.4 g/cm³ |
| pH (solution) | 10–11 |
| Composition | Mixture (not a single compound) |
| CAS Numbers | Vary depending on components (e.g., Sodium Sulfate: 7757-82-6, LABSA: 27176-87-0) |
Kule tozu serves as the foundation for different detergent types:
Hand-wash detergents
Automatic washing machine detergents (matik)
Foamy powdered detergents
By adding specific additives, manufacturers tailor the product:
Phosphates / phosphonates → water softening, dirt removal
Bleaching agents → whitening effect
Anti-foam agents → prevent excess foam in washing machines
Enzymes & perfumes → enhance cleaning and consumer appeal
Storage: Keep in a cool, dry place to avoid clumping.
Safety: Avoid skin and eye contact; rinse thoroughly with water if exposed. Inhalation or ingestion requires medical attention.
Kule tozu is essentially the “detergent base powder”. Factories produce it in bulk, then enrich it with additives according to market needs. It is the core building block of modern powdered detergents, enabling mass production with consistent quality.
In short: Kule tozu is the spray-dried granulated base of powdered detergents, produced in detergent towers, and later customized with additives to create different detergent formulations.
Standard Tower Powder (Detergent Base Powder): The basic granulated mixture of LABSA, sodium sulfate, and water.
Automatic Washing Machine Tower Powder (Matik): Low-foam formulation, enriched with anti-foam agents and water softeners.
Hand-Wash Tower Powder: High-foam formulation, designed for manual washing.
Atomized Tower Powder: Produced by spray-drying for finer, more uniform granules.
Enriched Tower Powder: Contains additives such as phosphates, bleaching agents, enzymes, and perfumes for specialized detergent products.
Tower powder is a mixture, not a single compound. Its formulation usually includes:
Main ingredients:
LABSA (Linear Alkyl Benzene Sulfonic Acid) – surfactant
Sodium Sulfate (Na₂SO₄) – filler/carrier
Water – solvent
Auxiliary ingredients:
Sodium Carbonate (Na₂CO₃) – alkalinity regulator
Sodium Hydroxide (NaOH) – pH adjuster
Phosphates / phosphonates – water softening agents
Bleaching agents (e.g., sodium percarbonate)
Anti-foam agents – for machine detergents
Enzymes and perfumes – added in the final stage
Since tower powder is a blend, it does not have a single CAS number. Instead, each ingredient has its own:
Sodium Sulfate (Na₂SO₄): CAS No. 7757-82-6
LABSA (Linear Alkyl Benzene Sulfonic Acid): CAS No. 27176-87-0
Sodium Carbonate (Na₂CO₃): CAS No. 497-19-8
Sodium Hydroxide (NaOH): CAS No. 1310-73-2
Sodium Percarbonate (Na₂CO₃·1.5H₂O₂): CAS No. 15630-89-4
Tower powder is the granulated detergent base produced in spray-drying towers. It comes in different types (standard, matik, hand-wash, atomized, enriched) depending on its intended use. Its composition is a mixture of surfactants, fillers, and additives, and therefore it does not have a single CAS number—only the CAS numbers of its individual components.
Tower powder formulations vary depending on the detergent type (hand-wash vs. machine-wash). Below are common ranges:
| Type of Tower Powder | LABSA (Active Surfactant) | Sodium Sulfate (Filler/Carrier) | Sodium Carbonate (Alkalinity) | Water & Others (binders, minor additives) |
|---|---|---|---|---|
| Standard Base Powder | 25–35% | 50–60% | 5–10% | 5–10% |
| Hand-Wash Powder (High Foam) | 30–40% | 40–50% | 5–10% | 5–10% |
| Automatic Machine Powder (Low Foam) | 20–30% | 55–65% | 5–10% | 5–10% |
| Atomized Powder (Fine Granules) | 25–35% | 50–55% | 5–10% | 5–10% |
| Enriched Powder (Premium) | 20–30% LABSA + enzymes, bleaching agents, perfumes | 40–50% | 5–10% | 10–15% (additives) |
Percentages are approximate ranges; exact formulations depend on manufacturer requirements and local regulations.
Main Ingredients:
LABSA (Linear Alkyl Benzene Sulfonic Acid) – surfactant
Sodium Sulfate (Na₂SO₄) – filler/carrier
Sodium Carbonate (Na₂CO₃) – alkalinity regulator
Water – solvent
Optional Additives:
Sodium Hydroxide (NaOH) – pH adjuster
Phosphates / phosphonates – water softeners
Bleaching agents (e.g., sodium percarbonate)
Anti-foam agents – for machine detergents
Enzymes & perfumes – for premium formulations
Sodium Sulfate (Na₂SO₄): CAS No. 7757-82-6
LABSA (Linear Alkyl Benzene Sulfonic Acid): CAS No. 27176-87-0
Sodium Carbonate (Na₂CO₃): CAS No. 497-19-8
Sodium Hydroxide (NaOH): CAS No. 1310-73-2
Sodium Percarbonate (Na₂CO₃·1.5H₂O₂): CAS No. 15630-89-4
Tower powder is the granulated detergent base produced in spray-drying towers. Its percentage composition varies depending on whether it’s for hand-wash, machine-wash, atomized, or enriched detergent. Since it’s a mixture, it doesn’t have a single CAS number—only the CAS numbers of its individual components.
Detergent Base Powder
Tower Powder
Active Powder Blend
Atomized Detergent Base
Surfactant Mix Powder
CleanCore Powder
BrightBase Granules
EcoFoam Mix
PureWash Base
FreshWave Powder
Laundry Base Powder
Foamy Wash Blend
SoftWash Tower Powder
WhiteGran Detergent Base
Cleaning Powder Mix