Bathroom deodorizer cleaner

Ingredients

Ingredient	% w/w	Function
SLES (28%)	3.0–5.0	Primary surfactant
Cocamidopropyl betaine (30%)	2.0–3.0	Co-surfactant, foam
HP--cyclodextrin (30% solution)	5.0–8.0	Odor neutralizer
Citric acid	1.0–2.0	Mild acidity, chelation
BAC (50% solution)	0.2	Disinfectant (0.1% active)
Polyquaternium-22 (40%)	0.3–0.5	Surface protective film
Deionized water	to 100	Carrier
Long-lasting fragrance (encapsulated)	0.3–0.5	Sustained freshness

Addition Order & Process

Procedure: Dissolve citric acid in 60% of the water. Add SLES and CAPB sequentially. Add cyclodextrin solution and mix until homogeneous. Add BAC and polyquaternium-22 as separate prediluted solutions. Add encapsulated fragrance with low-shear mixing (200 rpm) to preserve capsule integrity. Adjust pH.

Formulation Notes

Dual-action deodorizer cleaners combine surfactant-based cleaning with molecular odor neutralization. Hydroxypropyl beta-cyclodextrin (HP--CD) forms inclusion complexes with volatile malodor molecules (skatole, indole, thiols, amines), trapping them within the cyclodextrin torus and rendering them non-volatile .

Target parameters: pH 4.0–5.5; viscosity 50–150 cP; cyclodextrin content 1.5–2.4% active.

The cyclodextrin mechanism operates through host-guest molecular encapsulation: the hydrophobic cavity (~0.78 nm for -CD) accommodates hydrophobic odor molecules while the hydrophilic exterior renders the complex water-soluble and non-volatile. Headspace gas chromatography demonstrates 60–90% reduction in malodor volatile concentration after treatment . BAC reduces microbial odor generation at the source by killing bacteria on surfaces. The dual mechanism—neutralization of existing odors plus prevention of new microbial odor production—provides comprehensive malodor control beyond simple fragrance masking.