Tell magical color material

The world is because of the color of colorful, life is because of the color becomes colorful , it all comes from the gifts of nature and human ingenuity . With advances in technology , humans can have a variety of ways to express color, apply a color , which color development and application of materials brought us fresh "colorful " life, but also in production, many aspects of defense shine.
Under the effect of the external excitation source , glow in the dark sheet  or a significant change in the system occurs a phenomenon called color discoloration . Gas , liquid or solid can be observed discoloration . The external excitation source may be light, heat , electricity , and pressure .
First look at the photochromic material. Photochromic phenomenon refers to a compound of a certain wavelength is irradiated by light , the photochemical reaction can occur to give the product b, a and b color ( i.e., the absorption of light ) is significantly different. b In another beam of light irradiation or by heating can be restored to its original form a. Usually one of the most known is the use of photosensitive silver halide photographic systems , dispersed in the glass or film silver crystallites under UV black , but reversed in the dark and heat , it becomes colorless state . Photoluminescent Masterbatch application of this system as an automatic adjustment of the intensity of transmitted light color sunglasses . Using the photochromic polymer layer as an optical disk is an optical disk recording can be cleaned , the disc can be repeatedly used , because photochromic reaction is a reversible , when recording the image or text information , the use of a starting Matches laser absorption wavelength of a compound in the irradiation area of the laser spot will give a photoproduct b microdots . After recording the disc , or if you want to modify the original information is not required , and can be heated or laser treatment approaches and photoproducts b mating , so that the original micro- dot will disappear and become blank. Photochromic CD discs and traditional compared to many advantages, such as the storage of high -density , light- fast response, anti- magnetic , good antifouling properties , easy processing , low cost.

Principle various color temperature change material

1 , temperature change of raw materials: The temperature difference between the control change color. Temperature change material has a temperature range of low to high variety , according to temperature generally divided into: low color ( about 10 ℃), the texture color ( about 30 ℃), High color (50 ℃, 60 ℃, 65 ℃) and other materials ; temperature change powder colored to colorless , colorless to colored series , temperature change with increasing temperature can be glowing sheets repeatedly will change color. ( To 31 ℃ red , for example, more than 31 ℃ discoloration in the form of colorless presented below 31 ℃ is red ) .
2 , Dreaming material discoloration principle: temperature change material color photographic material : use of sunlight (UV light ) control to change the color of the interior is a colorless or colored , color or appearance into another outdoor color under ultraviolet light .
3 , luminous luminous pigments absorb light and heat energy , and energy storage , and then in the dark to light way slow release of energy can be recycled an infinite number of times , a faster sunlight and UV absorption.
4 , long-lasting flavor: powdered paint pigments microcapsules using microencapsulation technology , the flavors wrapped up membership by pressure , friction, heat or natural diffusion , etc., slowly release the aroma , flavor sustainable than six months.
5 , anti-counterfeiting fluorescent material : surface temperature change material colorless , showing color under ultraviolet light. Applications: money , bills , card , tobacco, alcohol , drugs, glow in the dark , labeling, packaging, brochures, etc. with higher
6, the water becomes transparent ink : This ink is water-based , applied on paper , fabric printing, can cover the product as a white background when dry, discolored water after showing a transparent background color.

Temperature change ink color nature

Temperature change ink is an ink color as the temperature changes due to changes in temperature change ink .
The first, reversible glow in the dark film ink: original color after the temperature rises into other colors , then drop back to the color temperature also will be changed back .
Depending on the color temperature requirements there are several varieties of frozen food :7 -13 degrees Celsius temperature change ink ,26 -31 degrees Celsius temperature change ink feel ,46 -51 ,38 -43 ,60 -65 degrees Celsius temperature change ink .
Color color is divided into the following three products : photoluminescent technology, black - red, red - yellow.
Second, the reversible thermosensitive achromatic ink: ink temperature change in the original color will disappear when the temperature rises , the temperature returns after the color also will reply.