Thermal Developers
Thermal developers are special materials widely used in thermal paper and security labels.
Technical Principle
Thermal developers are key components in thermal recording materials, reacting with colorless dye precursors (such as Crystal Violet Lactone) to form colored compounds under heat.
Thermal color development systems typically consist of three main components: colorless dye precursor, developer, and sensitizer. When heat is applied to thermal paper, these three components melt and react together, producing visible color changes.
Product Description
• High Sensitivity: Rapid color development at relatively low temperatures
• Excellent Image Stability: Clear and long-lasting images after development
• Eco-friendly Formula: Free from harmful substances like BPA
• Multiple Grades: Various specifications suitable for different applications
Applications
Thermal Paper
Used in receipts, labels, fax paper, and other thermal printing media
Security Labels
Used in anti-counterfeiting labels and temperature monitoring labels
Medical Supplies
Used in medical records and sterilization indicators
Usage Instructions
1. Colorless Dye Precursor: 3-5% 2. Thermal Developer: 15-25% 3. Sensitizer: 10-15% 4. Binder: 20-30% 5. Filler: 25-35% 6. Other Additives: 5-10%
Mix the above components in proportion and adjust to appropriate viscosity for coating thermal paper substrates. Coating weight typically controlled at 3-6 g/m².
Important Notes:
• Avoid high temperatures during preparation, recommend operating at room temperature • Dry at appropriate temperature after coating to avoid premature color development • Store finished products in cool, dry places away from direct sunlight and high temperatures
Important Notes
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