Fragrance longevity is one of the core metrics for evaluating laundry detergent quality. Achieving a persistent fragrance from the washing process through to wearing requires close collaboration between fragrance suppliers and formulation engineers throughout R&D and production. Leveraging advanced fragrance technology and extensive application experience, Gar Aromas analyzes the key technical aspects to enhance scent retention.
I. Precise Fragrance Selection and Customization
- Microencapsulation Technology: One of Gar Aromas’ core technologies. We encapsulate fragrances within polymer shells to form micron-sized capsules. These capsules can withstand the rinsing during washing, only rupturing to release the fragrance upon fabric friction, wearing, or ironing. This enables “delayed release” and “triggered release,” significantly extending fragrance longevity to several days or even weeks.
- High-Substantive Fragrance Bases: Tailored to the charge characteristics of different fibers (cotton, polyester, blends), we offer specially modified fragrances with high affinity for fabric fibers, effectively resisting wash-off erosion.
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Microencapsulated Fragrance for Laundry Detergent with Long-Lasting Scent
II. Synergy and Optimization of the Formulation System
The stability of the fragrance within the formula is a prerequisite for longevity. An improper formulation system can lead to fragrance degradation, separation, or rapid volatilization.
- pH Value Management: Fragrances are highly sensitive to pH. Gar Aromas recommends stabilizing the final laundry detergent’s pH within a slightly neutral to weakly alkaline range of 7.0 – 9.0. Excessive alkalinity (pH > 10) can cause saponification hydrolysis of key aroma molecules like esters, permanently altering the scent profile and diminishing longevity.
- Addition Order and Temperature Control: Fragrance should be added during the mid-to-late stages of compounding, at low temperatures (< 40°C). Avoid adding fragrance during the initial high-shear mixing phase or when surfactants and alkalis are being added at high temperatures, as this can destabilize the emulsion system or cause volatility/chemical degradation.
- Compatibility with Surfactants: Cationic surfactants (e.g., softener components) are often incompatible with anionic surfactants, easily causing system flocculation that traps and precipitates the fragrance. Gar Aromas provides fragrance solutions with excellent compatibility across all ionic types (nonionic, anionic, amphoteric, cationic), ensuring uniform dispersion within the system.
- Impact of Preservatives: Certain preservatives (e.g., formaldehyde releasers) can react with fragrance molecules, causing discoloration and odor changes. When selecting a preservative system, it is essential to conduct compatibility testing with Gar Aromas’ technical team. We can recommend matching fragrances or alternative preservative solutions.
III. Precision Control of the Production Process
Production precision is crucial for perfectly translating a lab formula into a commercial product.
- Agitation Strength and Homogenization Process: Gentle yet thorough mixing is key to ensuring uniform dispersion of the fragrance. Excessive shear force can damage microcapsule structures or cause emulsion breaking. Low-speed homogenization is recommended to ensure the fragrance is fully integrated into the system without oil separation.
- Weighing and Dosing Accuracy: Fragrance is a high-impact ingredient. Minor weighing errors (even 0.1%) can lead to significant deviations in the final scent profile. It is imperative to use high-precision weighing systems and establish strict dosing verification procedures.
- Packaging and Storage Recommendations: Fragrance oxidation and evaporation begin after product filling. Gar Aromas recommends:
- Using opaque containers or UV-resistant materials to package the laundry detergent, avoiding light-induced fragrance degradation.
- Ensuring excellent sealing integrity of the packaging container to minimize fragrance loss through the cap during shelf life.
- Storing products in a cool, dry place away from high-temperature environments.
Why Choose Gar Aromas as Your Fragrance Partner?
- In-Depth Technical Support: We are more than a fragrance supplier; we are your technical partner. Our application laboratory provides comprehensive formulation compatibility testing (FTIR/DLS analysis), accelerated stability testing (high temperature, low temperature, light exposure), and production process parameter optimization advice.
- Customized Solutions: We provide tailored fragrance solutions based on your specific formulation system (anionic/nonionic surfactant base), target cost, and production process, solving any longevity challenges you encounter.
- Innovation and Sustainability: Gar Aromas continuously invests in R&D in cutting-edge fields such as microencapsulation and sustained-release technologies, and offers eco-friendly and biodegradable fragrance options that align with market trends.
