Cellulose Ether for Laundry Detergent CMC & HEC solutions for soil suspension, anti-redeposition, viscosity control, and storage stability in powder, liquid, gel, paste, and concentrated laundry detergent formulations.

CMC (Carboxymethyl Cellulose) is the most commonly used cellulose ether in laundry detergent, primarily for anti-redeposition and soil suspension. HEC (Hydroxyethyl Cellulose) is used in selected liquid laundry detergent systems for viscosity control and formulation stability.

CMC adsorbs onto soil particles and fabric fiber surfaces — particularly cotton — creating a barrier that reduces the redeposition of removed soil during washing. This helps fabrics maintain their whiteness, brightness, and clean appearance over repeated wash cycles.

HEC helps adjust viscosity, improve liquid texture, support product stability, and improve pouring and dispensing behavior in selected water-based liquid detergent formulations. Its non-ionic character provides broad compatibility with common detergent surfactant systems.

Cellulose ether primarily supports soil suspension, anti-redeposition, viscosity, and formulation stability. Cleaning power depends on the complete surfactant system, builders, enzymes, washing conditions, water temperature, and overall formulation design.

A common reference dosage range is 0.2%–1.5% by weight, depending on detergent format, cellulose ether grade, target function, and formulation design. Powder detergent typically uses 0.3%–1.5% CMC, while liquid systems may use 0.2%–1.0% HEC or CMC. Final dosage must be confirmed through formulation testing.

Yes. CMC is widely and historically used in powder laundry detergent as an anti-redeposition and soil suspension additive. It is compatible with dry-blending production processes and performs well in alkaline powder detergent systems.

HEC may be used in selected concentrated laundry detergent systems, but compatibility with the specific surfactant blend, electrolyte level, fragrance, preservative, and pH must be tested and confirmed during formulation development.

Viscosity loss during storage may be caused by surfactant incompatibility, high electrolyte content, pH drift, temperature variation, microbial degradation, enzyme activity (particularly cellulase), poor initial hydration, or an unsuitable cellulose ether grade. A systematic review of the formulation and production process typically helps identify the root cause.

Yes. Share your detergent format, target function (anti-redeposition, viscosity, stability), surfactant system, pH range, electrolyte level, viscosity target, and processing method. LANDERCOLL can recommend suitable CMC or HEC grades for laboratory evaluation and provide supporting technical documentation.