When printing, in order to make the printed products look better and more tasteful, customers often ask us if we have some processes. Jinan packaging printing company here points out two commonly used processes to make the surface brighter.

　　光在打印涂層的表面(或噴、印)上一層無色透明漆(清漆)，經過調平、干燥、加壓，在打印表面形成薄而均勻的透明光層。上光包括整體上光、局部上光、光澤上光、啞光(消光)上光和特殊涂層上光。

　　Light a layer of colorless transparent paint (varnish) on the surface (or spray, print) of the printing coating. After leveling, drying and pressing, a thin and even transparent light layer is formed on the printing surface. Glazing includes overall glazing, local glazing, glossy glazing, matte (Matt) glazing and special coating glazing.

　　2. 為什么印刷品需要上光?

　　2. Why does printing need to be polished?

　　為了美化印刷品，保護印刷品，加強印刷品的宣傳效果，提高印刷品的實用價值。在印刷品的表面上顯得更加光滑，使入射光產生均勻的反射，油墨層更加明亮。光油在印品表面上的運用可對印品進行涂布加工。在印刷完成前，應采取適當措施保護紙張或紙板的表面。印品經過上光后，在其表面涂上一層薄膜。其適用范圍如下:

　　In order to beautify the printed matter, protect the printed matter, strengthen the publicity effect of the printed matter and improve the practical value of the printed matter. It is more smooth on the surface of the printed matter, making the incident light produce uniform reflection and the ink layer brighter. The use of varnish on the surface of the printed matter can be used for coating the printed matter. Before printing is completed, appropriate measures should be taken to protect the surface of paper or paperboard. After the printing is polished, a thin film is coated on its surface. Its scope of application is as follows:

　　(1)書籍裝幀，如封面、封面、插頁和掛歷、掛歷、廣告、宣傳樣品等，上光后可使印刷品增加光澤，色彩鮮艷。

　　(1) Book binding, such as cover, cover, inserts and calendars, calendars, advertisements, publicity samples, etc., can make the printed matter more glossy and colorful after polishing.

　　(2)包裝紙制品，如精裝紙盒、包裝盒、紙袋、信封、商標等，經過上光處理，起到美化和保護物品的作用。

　　(2) Packaging paper products, such as hardcover cartons, packaging boxes, paper bags, envelopes, trademarks, etc., are treated by polishing, which plays a role in beautifying and protecting articles.

　　(3)文化類產品，如卡片、明信片、印花金圖案等可以起到抗機械摩擦、抗化學腐蝕的作用。

　　(3) Cultural products, such as cards, postcards and printed gold patterns, can play a role in resisting mechanical friction and chemical corrosion.

　　(4)日用品、食品等。如香煙、食品、洗衣粉等商標上的光能起到防潮、防霉的作用。

　　(4) Daily necessities, food, etc. Such as cigarettes, food, washing powder and other trademarks of light can play a moisture-proof, mildew proof role.

　　(5)硬殼上壓上銅箔，可使外觀美觀，其亮度極高，如黃金。如果銅量少與底面結合不牢固，上光后可獲得良好的附著力。

　　(5) Pressing copper foil on the hard shell can make the appearance beautiful and its brightness extremely high, such as gold. If the copper content is small and the bottom surface is not firm, good adhesion can be obtained after polishing.

　　以上是濟南包裝印刷公司為大家介紹的相關內容，想要了解更多內容，歡迎訪問網站：http://www.seven2000.comThese are the relevant contents introduced by Jinan packaging printing company. If you want to know more, please visit the website: http://www.jingyinshua.com