Truspray is designed to handle high-viscosity personal care formulations, such as waxes, lotions and gels, and is claimed to cut propellant and solvent use by up to 50 per cent.
“The eco-friendly, patented, Truspray technology offers improved spray quality, with low flow rates. Its reduced need for propellant and solvent allows for compact packaging that saves on materials and transportation costs, and enhances easy, on-the-go consumer use,” Phillip Brand, director of global marketing at Lindall Group told CosmeticsDesign.com.
Advantages of packaging high-viscosity formulas in aerosol format
Brand explained that Lindall Group’s initial goal was to develop a packaging system that reduced solvent and propellant use. In the process, the company discovered that the technology was particularly suited to spraying viscous product, he said, highlighting that the aerosol dispensing method can offer advantages over other types of packaging.
“Spraying an aerosol is very often much more consumer friendly than using jars or tubes, as application can be done by just pressing a ‘button’” said Brand. “The aerosol packaging format also has hygienic advantages, as the product inside the packaging cannot be compromised by harmful germs and bacteria.”
Based upon capillary atomization
Truspray technology, unlike other aerosol dispensing solutions, is based upon the principle of capillary atomization. According to Brand, this is a highly efficient, four-phase method of aerosol formation that does not require the use of flow-inhibiting swirl chambers or atomizer jets.
“A standard valve is paired with a capillary tube plus a capillary in the actuator. Upon actuation, product rises up the capillary wall, with only minimal use of propellant,” he explained.
“Tiny droplets are ‘torn’ from the formulation by the flowing propellant and travel – as aerosol – through the actuator’s bent capillary tube and out, as an even, deep, mist. This results in lower spray rates and therefore better ratio of propellant and active ingredient.”
Applications for which the Truspray technology is suitable include cosmetics and body care products, such as deodorants, body sprays and self-tanning lotions. Hair care and styling products, as well as sun care products - whether in creams, gel, oil or lotion format - are also suited to the technology.