News

When many customers see tinplate boxes, they often have questions about why some jars look bright and feel smooth, while some jars look dim and feel astringent. In fact, this is the surface ink treatment process. In jar jargon terminology, it is over-oil. The shiny surface and smooth feel are good varnishes; the dull surface and astringent feel are good oils. In addition, there are different inks such as explosive oil, rubber oil, gold oil, etc. The effects of different inks will be different. So why is there a layer of oil on the surface of the printed product?