Application of UV Curing in Flexo Printing II

Second, ultraviolet curing lamp supporting equipment

1. UV lamps need matching matching transformers, capacitors, ballasts, triggers and other related power accessories, light direction <1 KW, 2 KW matching ballasts, triggers; more than 2 KW matching transformers, capacitors 〉. High-grade ultraviolet devices use electronic power supply can be steplessly adjusted from 50% to 100% UV intensity, with rewind UV curing.

2. Ultraviolet lamps also need reflectors. In ultraviolet lamps up to the mercury lamp, the reflector acts as a condenser, reflecting the UV light emitted by the UV lamp to the surface of the product to be cured below, concentrating on a line or a point (ie, on the surface of the cured object). Create a focus>.


3. Lamp power density = lamp power ÷ lamp pole pitch.

Different UV coatings have different power density requirements for lamps, such as 80 w/cm, 120 w/cm, and 240 w/cm.

4. UV energy = UV intensity × time.

In a certain range of UV intensity, the accumulation of time reaches the completion of curing.

5. The use and characteristics of lampshade:

The lampshades that are used today for the soft-groove printing and drying are mainly used not only for the purpose of focusing light, but also have the function of the shutter and can be controlled online. When the printer stops, the shutter closes and the lamp power is reduced to a minimum level to prevent the printed material from catching heat. If it is a heat-sensitive material, it must be equipped with a quartz heat insulation sheet (the quartz reflector reflects ultraviolet and transmission infrared, and it can also reflect infrared and transmission enhanced UV). As shown in Figure 6.

(to be continued)

Wood Craft

2 What are the wooden handicrafts - wine rack

The shelf for placing various drinks can be made of wood. Such a wooden wine shelf is not only beautiful but also very practical. Generally, the drinks to be displayed are very expensive, and many people store them accordingly. The wood used to make the wine rack should consider what kind of wood is best to choose. In fact, the wood used in general is not ordinary, especially in large shopping malls and high-end clubs. The wood for wine racks is very expensive.
Wooden Wine Box 3 JpgWine Holder 1 Jpg
3 What are the wooden handicrafts - jewelry box

Most of the boxes used to place jewelry are made of wood, and some gold jewelry is suitable for wooden jewelry boxes. Jewelry is an accessory worn by women. When not wearing it, it is usually placed in a jewelry box. Which jewelry to choose is also taken out from the inside. It is also important to place jewelry. If the material of the jewelry box is not suitable, it will not have a good maintenance effect. The wooden jewelry box is multi-purpose.

4 What are the wooden handicrafts - root carving

Using the root carving method, the self-generated form and distortion behavior of tree roots are used as the artistic creation objects. Through conception and processing, artistic image works such as characters and animals are created. Root carving artworks can be collected, especially the more precious the wood selected, the more valuable the carved artworks. In fact, the root carvings are rarely artificially modified, and the artworks are more natural and beautiful.

5 What are the wooden handicrafts - screen

A screen is a kind of furniture used in traditional Chinese buildings to block the wind. Screens have a long history and are generally displayed in prominent positions in the interior, which can be used to divide, beautify and block. As an inseparable part of Chinese home decoration, it is a good way to present the beauty of nature and tranquility. The screens used in ancient times are made of wood, and there are exquisite pattern carvings on them, which are of great artistic value.

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