High and low temperature temperature change powder is suitable for all printing methods. Technical support for the use of thermal powder.

High and low temperature temperature change powder

High and low temperature temperature change powder is suitable for all printing methods. Technical support for the introduction of heat sensitive powder. Description of low temperature temperature change powder, introduction of high temperature temperature change powder product, use of heat sensitive powder, use of temperature change powder

The temperature-changing powder is a non-flammable product and does not spontaneously ignite when heated to 170 ° C in air. However, due to the extremely fine particles, once the dust is formed in the air and reaches a certain concentration, it may cause deflagration in the event of an open flame. Please be careful.

    Temperature-sensitive powder, also known as temperature-changing powder, thermal toner, thermochromic powder, temperature-changing powder, etc., when different temperatures are encountered, the color change of the toner will occur, generally there are two-stage discoloration, three-stage discoloration and multi-segment discoloration. The temperature-sensitive powder can repeatedly change color as the temperature rises and falls. The toner has a particle size of 1-10 um and a temperature resistance of up to 2800 C, and has good solvent resistance and dispersibility. Currently commonly used colors are: red, vermilion, rose red, pink, yellow, grass green, blue, violet, dark blue, Turkish blue, brown, black and so on. Temperature-sensitive powder refers to the use of temperature differences to control color changes. Typical color temperature ranges from -15 to +120 degrees.

     Thermochromic ink: also known as thermochromic ink, thermal ink, temperature change ink, temperature ink, temperature sensitive ink, is a special ink that can change color with temperature. The use of temperature differences to control color changes, can be used for screen printing, letterpress, gravure and flat printing, can be printed on paper, fabric, film, glass, wood, ceramics and other materials.

    The other type of temperature change powder is basically similar to the MICR technology, which is Optical Character Recognition (OCR). This technology was invented around 1952. The device, abbreviated as a reader, also known as an optical scanner, is a device that uses optical principles to recognize alphabetic symbols. Its output system can be magnetically or directly input into a computer for data processing.

   The temperature change powder used in this device is called OCR ink (also called optical reading ink). There are generally two types: non-readable and readable, the latter mainly refers to black inks, and the former refers to various color inks. OCR inks can be designed for general types of inks such as plain, embossed, gravure and silk screen. The pigment content in non-readable inks is generally between 1% and 5%, and some can be used at around 20%. Currently, in terms of file classification, MICR has been quickly replaced by OCR because OCR information is input into the computer faster. The MICR is mainly used in printing anti-counterfeiting and information recording.

  Thermoplastic powder synthetic resin is widely used in the ink industry, so various types of resin-type binders have become the main research content at present. The properties of the resin determine the properties of the binder. The main disadvantage of the vegetable oil type binder made of pure linseed oil is that the relative molecular mass is small, so the ink produced is easy to cause emulsification in offset printing, which brings a series of defects, so that the printing can not be carried out smoothly, and the printing effect is not good. . The resin type binder almost completely overcomes the defects in this aspect, thereby greatly improving the quality of printing.

Temperature change powder use:

    The commonly used temperature has a thermal change of 45 degrees, a cold change of 17 degrees, and a temperature change of 31 degrees. Thermochromic powder is generally used for high temperature warnings, such as color changing cups, color changing water bags, color changing spoons, etc.; cold change is generally used for cold drinks, such as ice cream cups, ice cream shovel, beer cups, etc. It can produce anti-counterfeiting inks (silk, offset, gravure, flexo), coatings and for injection/extrusion. Recommended plastics for use: PVC, PP, PE, PS, PU, EVA, silicone rubber, etc.

Usage: Generally used in oily ink coatings, water-based ink coatings, plastic injection, extrusion and so on.

The thermosensitive powder reversible thermochromic pigment is a novel coloring agent that rapidly changes color as the ambient temperature changes, thereby allowing the colored object to have a dynamically changing color effect. Currently in the printing industry, color-changing pigments have been used more and more widely. The use of color-changing pigments can be used to prepare various inks such as silk screen, gravure and offset printing, especially for screen printing and gravure color changing inks.

   The temperature-changing powder has various temperature ranges from low temperature to high temperature. According to the temperature, it is roughly divided into low temperature discoloration, hand discoloration, high temperature discoloration and other materials; the company's temperature change powder has two series of thermal decolorization and thermal hair color; In the colored state, the pigment changes from colored to colorless when the temperature rises to the set value. It is a colorless state at low temperatures, and the pigment changes from colorless to colored when the temperature rises to a set value. The color temperature range is: 60 to 65 °C. 3 colors: At present, the color-changing pigments have the following color types in the color-developing state: rose red, red, red, black, green, green, green, peacock, green, blue, yellow, and can be used to make anti-counterfeiting inks (silk, offset, gravure, flexo), paints and Injection / extrusion, etc.

   The temperature-changing powder 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. It is colored at low temperatures, and the pigment changes from colored to colorless when the temperature rises to the set value. Commonly used color temperature range: 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 to 70 ° C, 70 to 78 ° C is a colorless state at low temperatures, and the pigment changes from colorless to colored when the temperature rises to a set value. The color temperature range is: 60 to 65 °C.

The temperature-changing powder color-changing pigment has the following color types in the color-developing state: rose red, red, gold red, black, grass green, dark green, malachite green, royal blue, yellow, and can make anti-counterfeiting ink (silk screen, offset printing, gravure, flexo printing) , coatings and for injection / extrusion.

   Most of the temperature-changing powders have a color change in a high-temperature environment and a low-temperature environment. Commonly used in home appliances and toys industry. Usage: Screen printing, 150-200 mesh temperature-sensitive color ink: Temperature-sensitive color-changing ink is generally silk-screen printing ink, the printed pattern can change color with temperature change, can do two-stage color change, three-stage color change and multi-stage Discoloration, etc. The choice of substrate is optional: a variety of paper and a variety of plastics, but also special materials such as glass metal.