⚪ Laundry Detergent Powder for Whites: Overview and Properties
🔹 Overview
Laundry detergent powders for white fabrics are formulated to provide maximum brightness, stain removal, and fabric whiteness retention.
They typically contain oxygen-based bleaching agents, optical brighteners, and anti-greying polymers that restore and preserve the pure white appearance of textiles.
These detergents are suitable for both household and industrial use, offering deep cleaning, hygienic results, and high whitening efficiency even at medium washing temperatures.
⚗️ Chemical Composition
Typical components of white-fabric detergent powders include:
-
Anionic surfactants: LAS, α-olefin sulfonates — for strong cleaning and emulsification
-
Nonionic surfactants: Alcohol ethoxylates — for oily stain removal
-
Builders: Sodium carbonate, zeolite, sodium silicate — for alkalinity and water softening
-
Oxygen bleach system: Sodium percarbonate or sodium perborate + TAED activator
-
Optical brighteners: Stilbene-based compounds for bright white appearance
-
Anti-redeposition agents: CMC or acrylic polymers — prevent greying
-
Enzymes: Protease and amylase — remove protein and starch stains
-
Fragrance and stabilizers — for freshness and shelf-life improvement
⚙️ Physical and Technical Properties
-
Appearance: Fine, free-flowing white powder
-
Bulk Density: 0.6 – 0.9 g/cm³
-
Moisture Content: ≤ 5 %
-
pH (1 % solution): 9 – 11 (alkaline)
-
Active Matter Content: 20 – 35 %
-
Foam Level: Medium (machine-compatible)
-
Solubility: Fully soluble in water
-
Bleaching System: Oxygen-based, chlorine-free
-
Washing Temperature Range: 30 °C – 90 °C
🔹 Performance Characteristics
-
Provides intense whitening and brightness for cotton and blended fabrics
-
Ensures effective removal of organic stains (coffee, tea, sweat, food)
-
Prevents greying and yellowing with anti-redeposition polymers
-
Delivers hygienic and odor-free wash results
-
Compatible with both automatic and manual washing applications
-
Safe for repeated washing cycles without damaging fibers
🔹 Applications
-
Household laundry detergents for white clothing and linens
-
Industrial laundries, hospitals, and hotels requiring hygienic white textiles
-
Automatic and semi-automatic washing machines
⚠️ Storage and Handling
-
Store in a cool, dry, and ventilated place
-
Avoid contact with moisture and acids
-
Keep packaging tightly closed
-
Shelf life: 24 months under normal storage conditions
💡 Summary
Laundry detergent powders for whites are high-performance formulations combining surfactants, oxygen bleach, optical brighteners, and anti-greying agents to achieve brilliant whiteness, hygiene, and long-lasting brightness.
They deliver deep cleaning and visual whiteness enhancement, making them essential for both domestic and professional laundry systems.
