Low-temperature high-temperature temperature-changing powder product performance introduction What are the colors and application notes of temperature-changing pigments

Low-temperature high-temperature temperature-changing powder product performance Introduction What are the colors and application precautions for temperature-changing pigments, low-temperature temperature-changing powder, high-temperature temperature-changing powder product properties, temperature-varying pigments, color, temperature-changing powder application notes

The temperature-changing powder (temperature-changing pigment) has various temperature ranges from low temperature to high temperature, and is roughly classified into low temperature discoloration, hand discoloration, high temperature discoloration and the like according to the temperature; the company's temperature-changing pink pigment has a total of thermal decolorization and thermal coloration. Large series; 1, thermal achromatic type: in the colored state at low temperature, when the temperature rises to the set value, the pigment changes from colored to colorless. Temperature change temperature range of temperature change powder is: 0 ~ 5 ° C, 8 ~ 15 ° C, 18 ~ 24 ° C, 26 ~ 31 ° C, 29 ~ 33 ° C, 38 ~ 43 ° C, 45 ~ 50 ° C, 50 ~ 54 ° C, 60 ~65 ° C, 65 ~ 70 ° C, 70 ~ 78 ° C. 2, hot hair color type: in the colorless state at low temperature, when the temperature rises to the set value, the pigment changes from colorless to colored. The color temperature range is: 60 to 65 °C. 3. Color: At present, the color-changing pigments have the following color types in the color-developing state: rose red, red, gold, black, grass green, ado green, malachite green, royal blue, yellow, and can make anti-counterfeiting ink (silk, offset, gravure) , flexo), coatings and for injection molding/extrusion.

Coating: Suitable for surface coating of various plastic products, including ABS, PE, PP, PVC, PVA and any other plastic materials.

Ink: Suitable for printing on a variety of materials, such as fabric, paper, synthetic film, glass, ceramics and wood.

Plastic Jiao: It is suitable for injection and extrusion of various plastic materials, including PE, PP, ABS, PS, PVC, PUTPU, TPR, EVA and other plastic materials.

Precautions:

* Ink substrate selection is most suitable for pH 7-9. Plastic substrate selection is more suitable for MI value greater than 25. The larger the MI value, the better the color change effect.

* If there is agglomeration in the thermosensitive water emulsion, it can be stirred and heated in a water bath to be redispersed before use.

*The temperature-sensing powder material does not contain substances harmful to the human body and meets the specifications of safety toys and food packaging.

The temperature change ink is also called a thermochromic ink, a heat sensitive ink or a temperature indicating ink. The temperature-change anti-counterfeiting material is an organic complex or inorganic salt which is synthesized by a special chemical synthesis method and has a specific color change temperature (10 ° C, 20 ° C, 30 ° C, 40 ° C, 50 ° C, 60 ° C, 70 ° C, 80 ° C). The coordination compound and the liquid crystal molecule have complex molecular structure design, many varieties, and rich coloration. The classification can be divided into hand-color discoloration anti-counterfeiting materials and high-temperature discoloration anti-counterfeiting materials according to the temperature required for discoloration; according to the difference of discoloration modes, it can be divided into monochromatic reversible and single discoloration irreversible; discoloration modes include: hand discoloration and high temperature discoloration; The colors are: rose red, red, gold red, grass green, sapphire blue, yellow, black, etc... (temperature change ink)

    The temperature-changing inks produced by the company are divided into three categories: a certain color is displayed at normal temperature, and the color disappears into colorless after heating, and immediately returns to the original color after cooling, because the change process is reversible, called “ Reversible temperature-changing decolorizing ink"; showing no color at normal temperature, changing to another color after heating, and returning to the original colorless after cooling, because the change process is reversible, called "reversible temperature change hair color" Ink"; the ink displays color at normal temperature, and becomes another color after heating, because the change process can be reversed as "reversible temperature change color ink"; (temperature change ink)

Multifunctional (integrated) temperature change ink

A multifunctional or integrated temperature-changing ink refers to an ink having two or more anti-counterfeiting functions at the same time. Typical examples of such inks are laser holographic markings combined with fluorescent encryption temperature-changing inks, as well as long-short-wave intelligent temperature-changing inks, daylight-type fluorescent temperature-changing inks, and temperature-variable fluorescent anti-counterfeiting inks.

Laser holographic marks have been widely used in the fields of trademarks and logos. However, with the popularization of laser holographic marking preparation technology, the anti-counterfeiting performance of laser holographic markings has declined. If the new anti-counterfeiting measures can be added for secondary encryption without damaging the integrity of the laser holographic mark, the anti-counterfeiting function can be improved. That is to say, in the laser holographic logo, a certain process can be used to add a detectable special fluorescent material, which is invisible to the naked eye under sunlight, and displays special fluorescent images under the ultraviolet light of the money detector, which is resistant to friction and heat, and is convenient to detect. The characteristics of accuracy, anti-counterfeiting, and less cost of production.

In addition to the above types of temperature-changing inks, there are many other types of special inks, that is, inks that are used for special purposes to achieve anti-counterfeiting purposes, such as OVI optical variable temperature change inks, magnetic temperature change inks, etc.

Developed temperature change ink technology

1) Sunlight color anti-counterfeiting technology: Sunlight color anti-counterfeiting technology is a more advanced first-line anti-counterfeiting technology. Its identification method is simple, and it can see obvious color change effect under sunlight, and it can also pass long-wave ultraviolet light (ie, money detector). )test.

2) Intelligent spectrum analysis anti-counterfeiting technology: high-tech two-wire and second-line anti-counterfeiting technology that combines very special encryption materials with machine intelligent identification.

3) Long-wave and short-wave fluorescent anti-counterfeiting technology: Long-wave fluorescent anti-counterfeiting technology is one of the advanced anti-counterfeiting technologies adopted in the world. Its identification instrument is also popular, and short-wave anti-counterfeiting technology has high technical content and complex chemical synthesis. In addition, its identification instrument is also a special instrument, which is a more advanced anti-counterfeiting technology. The image printed or stamped by long-wave and short-wave fluorescent anti-counterfeiting technology can display bright fluorescent specific color (mostly red and blue) under long-wave (365nm) ultraviolet light; in short-wave (254nm) ultraviolet light The color that appears under illumination is mostly yellow. Green fluorescence.

4) Constant temperature thermal anti-counterfeiting technology: an organic complex synthesized by a special chemical synthesis method with a specific color change temperature (30 ° C, 40 ° C or 50 ° C), complex molecular structure design, variety, rich color, for example, Change from color to colorless or to other colors.