Irreversible Photochromic Material. A material can change color when expose to uv light and the color won’t change back.   PHOTOCHROMIC MATERIAL Change color with UVA radiation.  THERMOCHROMIC MATERIAL Change color with temperature.  FRAGRANCE MICROCAPSULE MATERIAL Long lasting microcapsules release fragrance longer than six months.  LONG LASTING GLOW IN THE DARK MATERIAL Store light and heat from conventional sources, and glow in the dark.  INVISIBLE FLUORESCENT MATERIAL It is white or invisible under conventional visible light and appears colorful fluorescence under UV/IR light.

1. Introduction and the Principle of Color Changing

Memory Type Thermochromic Material is a color-change-reversible material with memory effect. It changes color when temperature is above 55℃ and recovers color when temperature drops below 0℃.

1. As the picture shown below: The material is colored at 25℃. The color starts to fade at 55℃ and disappears at the range 58~62℃ (depends on color). The color will not reappear until temperature drops below 0℃.


(IT: Increasing Temperature; DT: Decreasing Temperature)

2. As the picture shown above: The material is colorless at 25℃. The color begins to show at 0℃ and 100% appears at the range -10~-15℃ (depends on color). The color will not disappear until temperature reaches 55℃.

2. Features

1.Color of the material can be set—in the range of 0℃ to 55℃, the material can be set to colored or colorless.

2.Can be used as an irreversible material. For example, erasable ink.

A. Applications:

Ink, paint, printing, textile…etc.

B. Color:

Red, rose red, magenta, orange, yellow, charm green, green, blue, turquoise blue, dark blue, violet, black and brown.

3. Form:

Slurry. Low formaldehyde modified slurry for ink. Low formaldehyde ink.

A. Memory Type Thermochromic Slurry (TM-SL W50-0):
  • A microcapsule aqueous dispersion with good dispersal in water
  • Solid Content 35% (±5%)
  • Particle Size D50 0.9-1.3μm D97 2.2-2.8μm
  • Recommended Concentrations For aqueous based ink/paint 5%~60% w/w (25%)
B. Memory Type Thermochromic Low Formaldehyde Modified Slurry For Ink (TM-MSL W50-0):
  • A water-based microcapsule dispersion which can be made into roller ball pen ink
  • Solid Content 35 % (±5%)
  • Particle Size D50 0.9-1.3μm D97 2.2-2.8μm
  • Recommended Concentrations for ink 40%~45% w/w
C. Memory Type Thermochromic Low Formaldehyde Ink (TM-INK W50-0):
  • Applicable in water-based system, such as gel pen ink, color pen…etc
  • Slurry Content 35~40%

4. Others:

Certifications: RoHS & EN-71passed

Update version date:20181025