🧺 Tulle Bleaching Powders – Production, Formulation and Properties
Overview:
Tulle Bleaching Powders are specialized oxygen-based bleaching formulations designed for delicate fabrics such as lace, tulle, silk blends, and fine cottons.
Unlike aggressive chlorine bleaches, these powders rely on mild oxidizing agents that remove soil and yellowing while maintaining the fabric’s texture, elasticity, and original brightness.
They are particularly suited for hand washing and low-temperature machine washing, providing gentle whitening, deodorizing, and sanitizing action without damaging sensitive textile fibers.
Tulle bleaching powders are also widely used in dry-cleaning support processes and delicate textile finishing, where color retention and fiber safety are essential.
Production and Formulation:
The Tulle Bleaching Powder Manufacturing Process uses a controlled dry-blending and stabilization method, ensuring long-term product stability and consistent performance under various washing conditions.
Typical formulation components include:
-
Active Oxygen Source: Sodium percarbonate or sodium perborate – main bleaching agents.
-
Activators: TAED (tetraacetylethylenediamine) – enhances oxygen release at low temperatures.
-
Builders: Sodium carbonate, sodium citrate – provide alkalinity and water softening.
-
Stabilizers: Magnesium silicate, sodium silicate – prevent decomposition during storage.
-
Optical Brighteners: Restore whiteness and brightness to fabrics.
-
Anti-Graying Agents: Carboxymethyl cellulose (CMC) – prevent soil redeposition.
-
Perfume and Colorants: Optional, for fragrance and product differentiation.
Production steps:
-
Dry Mixing: All solid ingredients are homogenized in a ribbon or plough mixer.
-
Granulation (if needed): Light agglomeration improves dust control and handling.
-
Cooling and Screening: Ensures uniform granule size and stable free-flowing powder.
-
Quality Control: pH, oxygen yield, and active matter are measured for batch consistency.
-
Packaging: Packed in moisture-resistant pouches or containers to prevent decomposition.
Properties:
-
Production Type: Dry blending and low-temperature granulation.
-
Active Oxygen Content: 10–15% (depending on percarbonate ratio).
-
Foam Level: Very low; suitable for delicate fabric washing.
-
pH (1% solution): 9–10 (mildly alkaline).
-
Appearance: Fine, free-flowing white powder.
-
Solubility: Excellent in warm and cold water.
-
Fabric Safety: Non-corrosive, non-chlorine, suitable for delicate materials.
-
Shelf Life: 12–18 months under dry conditions.
-
Eco Aspect: Biodegradable and chlorine-free formulation.
Advantages of Tulle Bleaching Powders:
-
Gentle bleaching for sensitive textiles like lace, silk blends, and tulle.
-
No fiber damage or yellowing, even with repeated washing.
-
Effective at low washing temperatures (30–50°C).
-
Compatible with color-safe laundry detergents.
-
Environmentally friendly and non-toxic to fabrics and skin.
Summary:
Tulle Bleaching Powders represent a modern, fabric-safe bleaching solution combining oxygen-based chemistry and low-alkaline stabilization.
They offer delicate yet efficient stain and yellowing removal without the harsh effects of chlorine or peracetic systems.
These formulations are a vital addition to premium detergent systems, especially for consumers seeking safe, sustainable, and high-performance textile care.
