Using a special process to poly fiber poly pressed into a flat shape or cylindrical shape, can adjust the density and thickness according to different needs, and the silk will not fall off, no burr edge, no smell of environmental protection glue-free hard cotton. Advantages: hard but good resilience, strong ink absorption, cotton silk will not fall off, not aging, suitable for any printing oil (special printing oil such as clothing printing oil, anti-counterfeiting printing oil, etc.), high temperature resistance, no deformation. The advantages of the high compression fiber pad are reflected in its ink storage ability, no deformation, especially when used with the photosensitive pad, which can save costs, improve the ink storage function, increase the resilience of the seal and so on. Product specifications: 180*470mm, thickness 2mm,3mm,3.3mm,4mm,5mm, can be customizedFlat type hard cotton can be applied to the printing table, or with the photosensitive pad applied to the photosensitive seal, its ink absorption and oil resistance is the first choice of photosensitive seal, reduce the cost and has a good elasticity and ink storage performance, will not aging and deformation. The cylindrical hard cotton core with photosensitive ring can be applied to the rolling seal, so that the rolling seal has a good effect, no deformation and strong ink storage.High-density polyester fiber ink storage pad or cotton core can also be applied to seal in the past industry, such as applied to filtration, oil absorption, water absorption, heat preservation, heat insulation and other functions of the product.