Light fastness refers to the performance of UV flexo printing ink that its color does not fade under the action of sunlight. To master the lightfastness of various UV flexo inks, you must first understand the lightfastness level of each UV flexo ink, which is divided according to the BWS international standard. The BWS consists of 8 levels, from the lowest level 1 to the highest level 8. All UV flexo inks must be tested for lightfastness in a specific laboratory. To ensure that the printed matter can maintain bright colors for a long time.

The main difference between UV ink and LED-UV ink is the light source used to cure the ink. UV ink is cured using a mercury vapor lamp, while LED-UV ink is cured using light-emitting diodes (LEDs).

In March, Yangcheng is warm and full of flowers, and there is a lot of traffic. From March 2nd to 4th, the 2023 South China Printing Label Exhibition was underway, and the popularity of the audience continued unabated, and the popularity was still hot. There are a variety of products in the exhibition hall, and various leading technologies are eye-opening. There are hot scenes of looking at products, changing business cards, adding WeChat, talking about business, and talking about cooperation.

In color printing, how to rationally arrange the order of color overprinting is an important subject studied by process technicians. An important function of printing is to copy original manuscripts artistically, which requires printing workers to have a certain degree of artistic appreciation and the ability to master color changes. Improper color sequence arrangement may cause problems such as color shift, color mixing and reverse overprinting of printed products; scientific color sequence arrangement will make the color of printed products closer to the original, and even strengthen a certain color atmosphere, so that the level is clear, the dots are clear, and the overprinting is accurate. The colors are true, natural and harmonious.

This article introduces the types of environmentally friendly inks, analyzes the problems encountered in the design process of pure vegetable inks, and proposes corresponding improvement measures. Pure vegetable ink barrier is a new type of ink that is environmentally friendly, has excellent performance, is effective and energy-saving.

label printing machine, label application technology, marking machinery and system, digital printing equipment Printing machinery: shrink and rotary printing machinery, folding boxes, shrink wrap Packaging Materials: Packaging Printing & Production, Graphic Art, Wet Glue Labels, Labels, Printed Labels

The four-color printing mode is a color registration mode used in color printing. It uses the principle of color mixing of three primary colors of color materials, plus black ink, and a total of four colors are mixed and superimposed to form the so-called "full-color printing". The four standard colors are: C:Cyan = cyan, also known as 'sky blue' or 'blue'; M:Magenta = magenta, also known as 'magenta'; Y:Yellow = yellow; K:blacK= Black, although some literature explains that the K here should be Key Color (positioning and registration color), but it is actually confused with the concept of positioning and registration used in plate making. The abbreviation here uses the last letter K instead of the beginning B to avoid confusion with Blue. The CMYK mode is a subtractive color mode, and the corresponding RGB mode is an additive color mode

UV flexo printing is a type of flexographic printing that uses ultraviolet (UV) light to cure the ink.