Once you see the colored lifting belt, you can guess the lifting belt made of polyester or nylon, because only these two materials can be colored. White polypropylene lifting straps are obviously always one color white.
Although polyester and polypropylene lifting belt can be colored, but their coloring process is very different. This article jili lifting belt manufacturers xiaobian is mainly to tell friends about the two materials of lifting belt dyeing process is not the same.
Process of dacron hoisting belt
Into the belt - water - before drying, coloring trough, preliminary drying (infrared), high temperature baking, after washing cleaning (reduction), after drying, belt. The role of infrared pre-drying is to allow the initial attachment of dye molecules on the fiber, to prevent the emergence of problems such as color. The function of high temperature baking is to make the dye molecules fully into the fiber, complete the dye dyeing fiber process. Reduction cleaning is used to decompose excess dye molecules to ensure color fastness of products.
Nylon hoisting belt technology
Into the belt - color tank - hot steam - after washing - after drying - belt. The function of steaming is to make the acid dye molecules fully react with the corresponding functional groups in the fiber to complete the process of dyeing the fiber with acid dye. The function of washing is to remove the dye molecules without complete reaction to ensure the color fastness of the product.