欧美一级在线观看_91热久久免费频精品黑人99_AV无码AV高潮AV喷吹免费_亚洲六月丁香六月婷婷色伊人,国产亚洲综合久久系列,欧美日韩高清在线 ,婷婷综合久久中文字幕蜜桃三电影

Can we help you find something?

News
Location : Home> News>Industry News

UVLED equipment manufacturer tells you what is Partial UV varnishing?

Click:[1670] Publish Time:2019-12-20

      Partial UV varnishing is a technique for surface finishing of printed matter. According to the needs of product 

varnishing, partial varnishing is applied to the areas where trademarks and packaging prints need to protrude. Compared 

with the surrounding patterns, the varnishing pattern is more vivid, bright and three-dimensional. Extinction, partial 

refraction,partial frost, partial light, partial ice, partial wrinkles, and colorful. Partial UV varnishing is mainly used in the 

finishing of book covers and packaging products, making printed products more icing on the cake and more popular.

                   Partial UV varnishing
                                        
       Partial UV varnishing can be performed in two stages, either retroperitoneally or directly on printed matter. 

However, in order to make the effect of local glazing more obvious, it is generally performed after the printed film 

is covered, and most of it is covered with a matte film.The main difference between partial varnishing and full-plate 

varnishing is that one is that there are certain registration requirements for the glazing equipment, and the other 

is that a printing plate needs to be made. There are three main elements of local UV glazing, equipment registration,

glazing plate and curing equipment. In order to ensure that the size of the partial UV varnishing is consistent with 

the size of the printed graphics, a photosensitive imaging method should be used when making the coating plate.

      According to the different printing methods, partial glazing can be divided into the following categories.

1. Screen printing partial varnishing

        Screen printing has the characteristics of high ink transfer, thick ink layer and strong three-dimensional 

impression. Screening screens are generally suitable for 200-300 mesh screens (lower meshes for local frosting and 

local colorful effects, etc.), and the tension of the stretched screen is 20-25 N / cm. Because the equipment 

investment is not large. Many books and magazines and packaging factories prefer screen printing when increasing 

local coating business. Some professional printing and varnishing companies aim to improve the varnishing accuracy 

and improve production efficiency. Already using a fully automatic cylinder screen printer. Production speed can reach 

3000 sheets / hour. However, the partial printing of screen printing basically adopts the offline production mode. 

There are fewer online screen printing units.

2. Partial varnishing of flexible plate

         Flexographic printing is characterized by the ability to form thicker coatings in a simpler process. Therefore, 

it is very popular in UV glazing. Partial varnishing of flexographic printing is divided into ordinary flexographic 

printing varnishing and special flexographic printing varnishing,and some simple graphics are still using engraved rubber 

relief. Flexographic printing partial coating is suitable for offline coating and online coating can also be realized. 

Adopting flexographic printing varnishing method, combined with anilox roller and cavity scraper, can accurately

control the amount of varnish, and the varnishing quality is stable.

                       Partial UV varnishing

3.Gravure partial coating

         Gravure printing is also advantageous in local uV varnishing due to the thick printing ink layer and high

resistance of the gravure cylinder. Especially the emergence of sheet-fed gravure printing machines has contributed 

to the development of local varnishing. However, due to its higher platemaking costs, it is mainly used for long-term 

glazing services.

                             Partial UV varnishing

4.Other local glazing methods

        No one will use offset printing before UV varnish appears because its printing ink layer is too thin. The 

UV varnish has a thicker film layer, higher gloss, and has the advantage of high overprint accuracy. It also has 

some applications in local UV varnishing, but is mainly used for online varnishing.


        Shenzhen Height-led is a device manufacturer specializing in the development, production,and sales of uvled 

curing equipment. Its main products are uvled point / linear / area light sources,uvled curing furnaces, uvled curing 

machines, and uvled spot curing. Machine and other curing equipment, products are exported to home and abroad, quality 

assurance, welcome to buy.


主站蜘蛛池模板: 嘉兴市| 松溪县| 精河县| 安塞县| 苏尼特左旗| 曲阳县| 清水县| 长宁区| 曲水县| 繁昌县| 南丹县| 洪泽县| 南雄市| 黑水县| 共和县| 井陉县| 盐城市| 齐齐哈尔市| 祁东县| 青川县| 西昌市| 汶川县| 宁阳县| 通山县| 当阳市| 潢川县| 绥中县| 河曲县| 淮滨县| 伊金霍洛旗| 河西区| 旬阳县| 华蓥市| 嘉鱼县| 孟连| 边坝县| 安陆市| 宁蒗| 青神县| 溧水县| 吴忠市|