molding, mold, offsourcing, color changing
molding, mold, offsourcing, color changing


1.Brief Introduction
Color changes of thermochromic pigments are induced by temperature change. The pigments are composed by microcapsules that change colors reversibly. When temperature rises to a specified temperature, the color starts fading and back to the original color as the pigment is cooled down.

2. Products Feature
  A. Nine Standard Colors
molding, mold, offsourcing, color changing
Shade
Color Base
Item No.
Pantone No.
Note
Yellow
YT-temp
108C
Primary Color YT/MT/ST
Orange
OT-temp
021C
Magenta
MT-temp
Rubine Red C

Temp from
-15℃ to 65℃

(standard is 31℃)
Red
RT-temp
186C
Green
GT-temp
335C
Sky Blue
ST-temp
313C
Blue
BT-temp
301U
 
Violet
VT-temp
2728C
 
Black
LT-temp
Black5C2X
  
  Example: YT-31 (Yellow thermochromic pigment with color change at 31℃)


B.  Temperature of color changes

When the temperature is increased to a specify temperature, the color start fading to colorless. The specific temperature of the color changes can be assigned at a temperature between -15℃to 65℃. The sensitivity of color changes is within 2℃ to 10℃. The temperature of color change set under 33℃has fine sensitivity and those over 33℃ are duller.
molding, mold, offsourcing, color changing


Example 1.     BT-22      indicates the blue thermochromic pigment starts to change its color when it is heated to about 18℃ and becomes completely colorless at 22℃. Conversely, the color starts to reveal when the temperature is decreased. It's recommended to applying this for cold drinks.

Example 2.       OT- 31   indicates the orange thermochromic pigment starts to change its color when it is heated to about 29℃ and becomes completely colorless at 31℃. Conversely, the color starts to reveal when the temperature is decreased. This product is most suitable for products, which change colors at body temperature.

Example 3.       RT- 43   indicates the red thermochromic pigment start to change its color when it is heated to about 40℃ and becomes completely colorless around at 43℃. Conversely, the color starts to reveal when the temperature is decreased. It could be used as a caution for hot drinks.
molding, mold, offsourcing, color changing


--Color changeable products is applicable to PE, PP.
---Standard temperature for cold drink is 22℃, for body temperature is 31℃ and for hot drink is 43℃.
---Customers can specify ANY colors at any temperatures ranged from -10 ℃ to 65 ℃.
--Product material and color masterbatch is food grade and some is FDA approved.
-- The shelf life of thermochromic pigments is 2 years.

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