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    • 7. 发明授权
    • Method of fabricating a microporous surface blotter roll
    • 制造微孔表面吸墨辊的方法
    • US5571463A
    • 1996-11-05
    • US599207
    • 1996-02-09
    • Donald S. SypulaSantokh S. Badesha
    • Donald S. SypulaSantokh S. Badesha
    • B29C67/20F16C13/00G03G15/11
    • G03G15/11B29C67/202
    • A method of fabricating a controlled and uniform cell size blotter roll for blotting liquid images consisting of toner particles and carrier liquid. The method includes the step of mixing a first grade of salt having first particles of a first uniform size with a polymer material so as to form a first mixture. The method next includes a step of extruding the first mixture to form an extruded sleeve having intimately compacted polymer material and salt particles, an outer surface, and an inner surface defining a hollow interior. The method then includes curing the extruded sleeve until rigid and dry; abrading the outer surface and the inner surface of the extruded sleeve so as to remove any extrusion induced skin layer and to increase a number of open cells on each surface; applying an adhesive layer onto the abraded outer surface; forming a surface layer by coating the adhesive layer with powder particles of a second mixture consisting of a polymer material and a second grade of salt having second particles of a second, uniform size substantially less than the uniform size of the particles of the first grade of salt; leeching the particles of the first and the second grades of salt from the surface layer, and from the extruded sleeve, in order to form a conformable, compound open cell foam sleeve having controlled uniform cells and the desired hollow interior; and inserting into the desired hollow interior a rigid core having connections for connecting to a vacuum system.
    • 一种制造受控且均匀的细胞大小吸墨辊的方法,用于吸印由调色剂颗粒和载体液体组成的液体图像。 该方法包括将具有第一均匀尺寸的第一颗粒的一级盐与聚合物材料混合以形成第一混合物的步骤。 该方法接下来包括挤出第一混合物以形成具有紧密压实的聚合物材料和盐颗粒,外表面和限定中空内部的内表面的挤出套筒的步骤。 该方法然后包括固化挤出的套筒,直到刚性和干燥; 研磨挤出套管的外表面和内表面,以便去除任何挤出诱导的表皮层并增加每个表面上的多个开孔; 将粘合剂层施加到磨损的外表面上; 通过用由聚合物材料和第二级盐组成的第二混合物的粉末颗粒涂覆粘合剂层而形成表面层,所述第二混合物具有第二颗粒的​​第二颗粒,其尺寸基本上小于第一等级的颗粒的均匀尺寸 盐; 从表层和从挤出的套筒中浸出第一和第二等级的盐的颗粒,以形成具有受控的均匀泡孔和所需的中空内部的适形的复合开孔泡沫套筒; 以及将具有用于连接到真空系统的连接件的刚性芯体插入所需的中空内部。