Temperature change ink

Temperature Materials: raw materials are world-class, with a temperature rise, declining repeatedly to change the color of the microcapsule material. Main business: temperature change color powder, temperature change ink, paint color temperature, warm feeling lotion, temperature masterbatch, temperature change in the types of products. Main purpose: ceramic mug, printing, textile, plastic injection, plastic extrusion, all kinds of gifts, advertising materials, children's toys, thermal transfer stickers, printing products. First, the principle is microencapsulated with invisible materials, color temperature agent forming agent, membership by the different temperature factors material selection, can be made into different color toner temperature range. Second, the product description A, color principles: low temperature and high temperature colored colorless. B, available product range: -15 ° C ~ 70 ° C. Temperature, can adjust. C, basic colors: 15 colors available at each temperature (70 ℃ only available in black and dark blue) colors can be mixed with each other, can also add other pigment color. Third, the product forms and instructions A, product forms and application: water emulsion mainly applicable to water-based ink coating, microencapsulation powder is mainly applied to oil-based ink coating, masterbatch is mainly applied to plastic injection, extrusion. B, temperature-sensitive microcapsule powder (commonly known as: temperature change color, temperature or temperature change powder powder): a particle size of 3-10um has good solvent resistance and dispersion, suitable for use in inks, paints and plastics ( You can mix and PE, PP, PS, PVC, PVA, PET, Nylon shot together, extrusion 0.5% w / w-0.7% w / w) of the injection, extrusion. , Temperature heated temperature up to 230 degrees C, a sense of emulsion: an average particle size of 3-10um, an aqueous dispersion containing microcapsules agent for water-based inks and coatings. Agglutination during storage stratification is normal. D, temperature masterbatch: containing 12-18% microcapsules materials, different color intensity of the microcapsule material different color for plastic injection, extrusion products used in a proportion required adjust. Dispersion easy to use, can be directly used in plastics injection and extrusion. E, temperature change ink: mainly used in printing, ceramics, textiles and so on. 1, drying methods :( from the dry, dried, UV curing), available when using the appropriate diluent. (You can also customize the aqueous ink, and diluted with water) is recommended to use a white background printed or plain color, color change can increase the degree of difference. 2. Screen selection: choose between a mesh size of 150 mesh to 200 mesh. 3, suitable substrates: screen \ offset \ transfer \ printing \ spray, (paper \ cloth \ metal \ Glass \ ceramic \ plastics). Note: Storage: temperature change color ink should be stored in airtight, dry, dark place away from direct sunlight. Toxicity and safety: temperature change color ink on the skin with a slight respiratory tract irritation, handling should be closed, when the printing operation environment should maintain good ventilation. After the ink is completely dry, it will not have any odor or irritation, consistent with safe toys and food packaging specifications benchmarks. Fourth, note: Material background is light and transparent color preferred (refer to color card). Background color is recommended for the fifth to tenth, ground temperature powder dye is one fiftieth to one percent of the temperature sensitive powder. In plastic injection, extrusion material time can not be too hard, there are two principles: MI value is greater than 25 (the bigger the better), the bending modulus of elasticity of less than 17,000 (the smaller the better). For plastic injection, extrusion when the best light given added security agents, antioxidants, and slip agent additives to increase the temperature sensitive powder thermal resistance, oxidation resistance and dispersion. Choose quality material substrate heart PH 5-7 most applicable. E, injection molding and extrusion using the color pigment in plastics should no longer use other fillers or ordinary paint (for example: titanium dioxide, calcium carbonate, barium sulfate, carbon black, etc.), otherwise it will shield color effect. F, casting, molding, curing color pigment should be used in forming the first color pigment added to the unsaturated polyester, acrylic or nylon single body within dispersed by stirring, then add the initiator or curing agents begin polymerization or crosslinking reaction. Because the sharp rise in viscosity to gather after this time will make a lot of added color pigment pigment particles packed together, difficult to disperse evenly. In this case, the blending operation will also make the system a lot of residual bubbles. G, carefully chosen crosslinking agent or curing agent: crosslinked epoxy resins and curing process of unsaturated polyester resins, which sometimes have a strong internal shrinkage stress, resulting in pigment discoloration microcapsule shell rupture, other chemicals into the color pigment inside it lost performance. This situation often occurs when the epoxy curing thickness is greater than 0.2 mm and the use of multi-amine curing agent. H, can not use the mixer, kneader, high-speed disperser, a twin-screw extruder, high shear device premixed plastic particles and color pigment. These devices will seriously damage the surface of the protective layer of color pigment, loss of color performance. In addition, the preparation should avoid color pigment masterbatch subjected to repeated extrusion granulation. I, in the formulation of PVC resin should be avoided in a phosphorus-containing stabilizer and plasticizer, otherwise it would have a serious color injection products remaining at the achromatic color state. V. Storage: Save and duration: should be stored in a dry and cool place, at room temperature and without UV light / sunlight environment, the shelf life of the product is 2 years. Reversible temperature-sensitive color paint itself is an unstable system (stable it is difficult to change), so its light, heat, anti-aging properties far less common pigment in use should be noted. 1, light resistance:? Temperature change color pigment lightfastness is poor, under the strong sun exposure it will soon fade fail, so it is only suitable for indoor use. Avoid strong sunlight and ultraviolet light irradiation, which will help extend the life of color pigments. 2, heat resistance: processing temperature should be controlled below 200 ℃, the maximum should not exceed 230 ℃, heating time and minimize material (high temperature, prolonged heating will damage the color properties of the pigment). ? Temperature change pigment in a short time can be resistant to 230 ℃ high temperature (about 10 minutes), it can be used in injection and high temperature curing. However, the thermal stability of the color pigment in hair color and the achromatic state status is different, the stability of the former than the latter. In addition, when the temperature is above 80 ℃, organic substance color system will begin to degrade. So color pigments should avoid long-term work at higher temperature 75 ℃ under. Six test report: The company products through temperature change EN-71 and RoHS testing. Suitable for food packaging and toy manufacturers.