| 摘要 |
PURPOSE:To improve the problem of development by a frictional removing system of printing plates by providing fiber flocking parts, wherein the fibers have irregular sectional shapes. CONSTITUTION:A developing brush having fiber flocking parts wherein the fibers have irregular sectional shapes. Synthetic resins are used as the fibers constituting the brush. Natural fibers are inferior in durability and workability of sectional shapes to synthetic fibers and are therefore undesirable. For crimping of the fibers, the crimped fibers are more effective than straight fibers. The preferable sizes (diameters of monofilaments) are required to be 10-250 denier, more preferably 10-150 denier. The fibers finer than 10 denier are too soft and the fibers coarser than 250 denier are too hard. These single fibers are flocked to a flocking base and are made into a brush, with which the higher flocking density is more preferable than the lower density and the more particularly preferable density is 0.3-2kg/m<2>. |
