A temperature-sensitive coating ideal for sportswear and safety apparel, this formulation utilizes temperature-responsive pigments to visually indicate variations in temperature. Enhances user safety by allowing for easy detection of body heat changes or environmental shifts while providing a dynamic aesthetic.
Technical Specifications
pH Level: 6.8
Shelf Life: 1 year when stored in a cool, dry place away from direct sunlight
Batch Size: 1000 L
Processing Time: Approximately 3 hours across all phases
Temperature: 25°C for mixing, ambient for curing
Storage: Store between 10°C and 30°C with humidity level below 50%
Viscosity: 5000 cps (centipoise) at 25°C
Certification: Compliant with Oeko-Tex Standard 100, ISO 9001:2015
Ingredients
Ingredient
Percentage
Function
Polyurethane Dispersion
60.0%
Serves as the primary film-forming agent, providing elasticity and durability
Thermochromic Microcapsules
20.0%
Responsible for the change in color with temperature fluctuation
Silicone Surfactant
5.0%
Enhances spreadability and surface uniformity on textile fibers
Defoamer
2.0%
Reduces foaming during application to ensure a smooth coating
Heat Stabilizer
5.0%
Improves the thermal stability of the coating to withstand repeated temperature cycles
Thickener
2.5%
Adjusts viscosity for optimal application consistency
pH Adjuster
0.5%
Adjusts the pH to ensure formulation stability and textile compatibility
Water
5.0%
Acts as a solvent for uniform mixing and application
Manufacturing Process
Preparation Phase
Calculate precise measurements for all ingredients to ensure reproducibility.
Check that all mixing equipment is clean and sterilized before starting.
Inspect thermochromic microcapsules for any agglomeration; disperse if necessary.
Mixing Phase
In a high-shear mixer, combine polyurethane dispersion and water, stirring at 500 rpm for 10 minutes at 25°C.
Add silicone surfactant gradually while maintaining the stirring speed and continue mixing for an additional 5 minutes.
Introduce thermochromic microcapsules, ensuring even distribution by increasing the shear to 1000 rpm for another 15 minutes.
Adjust viscosity by incorporating the thickener while monitoring with a viscometer to reach 5000 cps.
Final Processing
Incorporate defoamer during the final mix stage at 300 rpm; observe for any persistent bubble formation.
Stabilize the formulation by adding heat stabilizer; gently stir for 5 minutes.
Adjust pH to 6.8 using citric acid while continuously monitoring with a calibrated pH meter.
Usage Instructions
Apply evenly onto textile surface using a roller or spray method. Allow to cure at room temperature for 24 hours before use. Recommended application thickness is 200 microns.