[Common textile manual]

Overview

Polishing non-woven materials. There are two types of products, namely sand felt and sand bars. Satin felt: nylon, polyester staple fiber with 10~16.7dtex and 51~65mm length are used as raw materials. Firstly, a high-loft fiber mat is prepared by non-woven technology of spray adhesive, and then the modified phenolic resin is sprayed on both sides. Thermosetting adhesives such as epoxies, epoxies, and urethanes, and abrasives such as silicon carbide or corundum, which are required for fineness, are cured and bonded to form a sand felt with certain grinding ability. According to the needs of processing into a variety of sheet-like sand felt and polishing wheel. The scouring pad and loofah cloth sold on the market are also produced using a similar process. Sand type: Using special vinylon, polyester, and nylon containing emery abrasive as raw material, the base fabric is made by non-woven acupuncture and viscous process, and then processed into sand bars of various sizes and shapes as required. The sand bar contains more abrasives, has stronger cutting force than the sand felt, and because of its flexibility and elasticity, it can elastically recede when the abrasive particles come into contact with the workpiece, ensuring the equal height of the abrasive cutter. Make the surface of the workpiece have a high degree of finish.