Flash inks, pearlescent inks, fluorescent inks, temperature-dependent inks—the names of these specialty inks alone sound exciting. Specialty inks, as the name implies, are special functions that can make packaging or its contents have special functions, such as Improve the anti-counterfeiting function of the product, increase the added value of the product or increase the trust of consumers. One of the disadvantages of applying special inks is the high cost. One reason is that the special inks use more expensive raw materials and more advanced technology, which is also the root of the special functions of special inks. Another reason is that the formulations of these inks are generally customized according to customer requirements, or are targeted. Of course, this does not mean that brand users will be discouraged because of the high price of special inks. For brand packaging, the use of special inks is a practical measure. If you want to make your packaging have distinctive characteristics, make the packaging pattern more attractive, or make consumers buy more confidently and increase the anti-counterfeiting function of the product, then special ink is the ideal choice. The special inks provided by Sun Chemical can meet almost any requirement, from product promotion, brand protection, functionality to anti-counterfeiting and other aspects. The company divides specialty inks into 4 categories: functional inks, security inks, anti-counterfeiting inks, and innovative inks. Of course, the functions of these inks are not unique. For example, temperature-change inks can be used as functional inks, and can also be used for product anti-counterfeiting to improve consumer safety. The following is a detailed introduction to the application of several typical special inks, as well as some new special ink products. Temperature change ink Temperature change ink refers to the ink whose color changes at a specific temperature, which is divided into reversible type and irreversible type. For example, the reversible temperature change ink can be used on the label of coffee packaging. It can be used to determine whether the coffee is too hot or too cold through color change or information display. It can also be used in baby shower gel to indicate whether the temperature of the bath water is too hot. Irreversible temperature change ink can be used to indicate whether a specific sterilization temperature is reached, or to indicate whether the temperature of the product during transportation and storage is too low or too high. At present, reversible temperature-varying inks are mostly used in temperature-varying inks. Fluorescent ink Fluorescent ink can be used for product anti-counterfeiting or to enhance the attractiveness of images. Color fluorescent ink can see the color of the ink under ordinary light, and can produce a fluorescent effect under ultraviolet light. Invisible fluorescent ink can hardly be seen under ordinary light, but it can fluoresce under ultraviolet light. UV / IR reactive ink can react to both ultraviolet and infrared rays at the same time. Under infrared light with a wavelength of 980nm, this ink can emit bright green fluorescence, while under ultraviolet light it can display another fluorescent effect. The fluorescent inks provided by UVitec have various color series, such as yellow, orange, red, magenta, green and cyan. In addition, there is a pink fluorescent color, which can be used as the fifth color in printing, to retouch the skin color in the printed image and expand the tone range of magenta ink. These inks can be used for flexographic printing, rotary screen printing, offset printing, and letterpress printing. Alden & Ott's Starlight fluorescent inks give printers more choices in printing speed and color intensity. These inks are thermally transferable and provide traditional color samples and PANTONE color samples. Fluorescent ink can also be used for small ornaments, running shoes, wallpaper (for indication in dark aisles). But the disadvantage is that, like other special inks, fluorescent inks will also affect the printing speed, and in order to achieve higher coverage, screen printing is often used. Metallic ink Metallic inks can produce dazzling effects on product packaging on shelves. WaterInk Technology Inc.'s WATERBRIGHT metal inks provide good metallic luster and excellent printability. The Metalorite metal ink from Alden & Ott Printing Ink Company is specifically used for narrow-width flexographic printing. Due to the use of very small metal particles, it can support high-quality overprinting. Meterorite series metal inks recommend the use of high anilox rollers to obtain better ink coverage. Metal ink can also be used as a more economical method to replace aluminum foil. When the area of ​​aluminum foil on the package is less than 25%, it is more cost-effective to use metal ink instead of aluminum foil. Environmental Ink Coatings offers several different metal inks: AquaGloss series metal inks have the best rub resistance; AquaSparkle series have bright performance and high stability. Eckart's UltraStar metal ink can achieve the same printing effect as aluminum foil. Sun Chemical signed an agreement with MetalFX Technology in the United Kingdom to become the official ink manufacturer of MetalFX, providing ink products for paper packaging, flexible packaging, hard packaging and commercial printing, and using MetalFX solutions to achieve metallic effects on packaging. MetalFX utilizes the transparency of CMYK four-color ink to overprint CMYK four-color on MetalFXBase silver ink to achieve thousands of printing colors, and controls the colors through MetalFX software and color samples. The silver ink is specially designed and has good adhesion to the upper CMYK ink. According to MetalFX's process introduction, first printing silver ink, and then overprinting standard CMYK ink, can make an ordinary four-color print show up to 615 kinds of metallic colors. Other special inks Two-color inks (color transfer), flash inks, pearlescent inks, swell inks and three-dimensional inks are all more interested in the market today. Rad-cure can provide UV, water-based two-color inks for flexographic printing, suitable for paper and most plastic films. When viewed from different angles, the ink changes from a hazy white to another color. Two-color ink can improve the attractiveness and anti-counterfeiting function of the product. In addition, the effect of this ink changing color cannot be captured by a copier or scanner. Flash ink can improve the visual appeal of labels, cartons, POP displays and stickers. Rad-cure's RAD-KROME series UV, water-based flash ink and pearlescent ink can be used for flexographic printing and screen printing. In order to improve the visual effect of different inks, UVitec Company produced a rotary screen printing UV flash coating, which can be applied online to improve the ink effect. The phosphorescent ink of Siegwerk Ink Company can continue to emit light after the light source is turned off. This ink can be used in products such as labels and toys, and is completed by gravure printing and screen printing. Flint Ink has developed an ink system called HolographINKProcess. This ink does not require the use of expensive holographic materials to print a compelling holographic effect. It can generate a variety of holographic colors and patterns on printing materials. Form fine details and accurate positioning. It can be used in the field of product decoration, brand identification, security and anti-counterfeiting. On a variety of printing materials, such as PE, PP and PVC, can achieve higher adhesion strength. At present, the main feature of special inks is to attract visual attention. Hearing and taste may change in a short period of time. Relatively speaking, taste and touch attract more and more attention. Ink suppliers are doing their best to develop inks that stimulate the facial features. Despite the higher cost, the good economic benefits prevent manufacturers from giving up.
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