The surface printing ink is used for reverse printing. The composite fastness is good or poor. Why?
When the surface printing ink is used for reverse printing, sometimes the composite fastness is good, sometimes the composite fastness is very poor, what is going on? It may be that the concept and the type of ink are not clear! The concepts of surface printing ink and compound ink (inner ink) are changed relative to the dry compound adhesive, that is to say, the adhesive used when dry compounding is not the usual two-component and single-component In the case of polyurethane, the original surface printing ink may be a composite ink. For example: some manufacturers use acrylic adhesives, then the original acrylic surface printing ink becomes the internal printing ink. Strictly speaking, the composite ink should be called the composite ink of XY composite glue, so that it is complete and clear. There are many types of surface printing inks for polyurethane glue, and there are three main types on the market: 1. Acrylic ink, this kind of ink is not compatible with PU glue. If this surface printing ink is used for dry printing, it will be easily peeled off on the printing surface after being compounded with PU; 2. Chlorine vinegar resin ink, which is made of vinyl chloride-vinyl acetate copolymer as the connecting material, and is not compatible with PU; 3. Polyamide ink, also known as nylon ink, has some compatibility with PU. If it is printed with this type of surface printing ink, it still has a certain compound fastness. Product categories of Storage Furniture, we have years of experience in the manufacture of furniture, cube,Floating Shelf and Bookcase suppliers/factory, wholesale high-quality products of Study Desk , Gaming Desk and Working Desk. We have the perfect after-sales service and technical support. We hope we can cooperate happily. Storage Furniture,Bathroom Storage,Shoe Storage Cabinet,Shoe Storage Bench Baklam , https://www.baklamfurniture.com