⚪ High-Alkaline Industrial White Laundry Powders: Overview and Properties
🔹 Overview
High-alkaline industrial white laundry powders are specialized detergent formulations developed for heavy-duty cleaning, bleaching, and degreasing in industrial and institutional laundry applications.
They contain strong alkaline builders, oxygen or chlorine-based bleaching systems, and powerful surfactants that effectively remove oils, proteins, and carbonized stains from heavily soiled white fabrics.
These detergents are widely used in hospitals, hotels, factories, and food-service laundries, where maximum cleanliness, brightness, and hygiene are required.
⚗️ Chemical Composition
Typical high-alkaline industrial laundry powder formulations contain:
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Anionic surfactants: LAS, α-olefin sulfonates – for soil and grease removal
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Nonionic surfactants: Alcohol ethoxylates – improve oily stain removal
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Strong alkaline builders: Sodium carbonate, sodium metasilicate, trisodium phosphate (or phosphate-free alternatives like zeolite + polymeric co-builders)
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Bleaching system:
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Oxygen-based: Sodium percarbonate + TAED for controlled bleaching
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Chlorine-based: Sodium hypochlorite or NaDCC for disinfection (industrial variants)
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Sequestering agents: EDTA, DTPA – bind hard water ions and metal contaminants
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Anti-redeposition polymers: CMC, acrylic copolymers
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Optical brighteners: Stilbene or coumarin derivatives for whiteness enhancement
⚙️ Physical and Technical Properties
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Appearance: Fine, free-flowing white powder
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Bulk Density: 0.7 – 1.0 g/cm³
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Moisture Content: ≤ 4 %
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pH (1 % solution): 10 – 12 (strongly alkaline)
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Active Matter Content: 20 – 40 %
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Foam Level: Low to medium (machine compatible)
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Bleaching System: Oxygen or chlorine-based (depending on formulation)
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Washing Temperature Range: 50 °C – 90 °C
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Solubility: Fully soluble in water
🔹 Performance Characteristics
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Provides high alkalinity for deep cleaning and degreasing of white fabrics
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Offers powerful stain oxidation with either oxygen or chlorine bleach
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Ensures antibacterial and hygienic results in institutional laundering
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Removes blood, oil, grease, and protein-based soils effectively
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Prevents fabric greying and fiber encrustation with sequestering agents
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Designed for automatic dosing systems in industrial machines
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Compatible with enzymes and optical brighteners (in oxygen-bleach systems)
🔹 Applications
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Hospitals and healthcare laundries
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Hotels, restaurants, and catering facilities
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Industrial uniforms, workwear, and production textiles
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Institutional washing systems and tunnel washers
⚠️ Storage and Handling
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Store in a dry, cool, and ventilated area
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Keep away from moisture, acids, and reducing agents
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Use protective gloves and goggles during handling
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Shelf life: 18 – 24 months under proper storage conditions
💡 Summary
High-alkaline industrial white laundry powders deliver maximum cleaning, bleaching, and disinfection power for professional laundry operations.
Their blend of alkaline builders, surfactants, and bleach systems ensures deep stain removal, brilliant whiteness, and hygienic results — ideal for industrial, healthcare, and hospitality sectors requiring superior performance.
