公开(公告)号：US5929135A

公开(公告)日：1999-07-27

申请号：US888358

申请日：1997-07-03

申请人： Eiji Wasai ,  Kazuhiko Furukawa

发明人： Eiji Wasai ,  Kazuhiko Furukawa

IPC分类号： B43K1/08 ,  B43K5/18 ,  B43K23/12 ,  C09D11/18 ,  B43K7/02

CPC分类号： C09D11/18 ,  B43K1/086 ,  B43K23/124 ,  B43K5/1881 ,  Y10S260/38

摘要： This invention provides a ball-point pen suited to low-viscosity aqueous ink. This ball-point pen includes a ball-point pen refill in which an ink reservoir communicates with a tip for holding a tip ball via a joint, wherein the ink reservoir is filled with water type ball-point pen ink containing at least one type of a solvent selected from the group consisting of ethyleneglycol, diethyleneglycol, propyleneglycol, and glycerin in an amount of 5 to 40 wt % of the total ink amount, a crosslinking acrylic acid polymer in an amount of 0.1 to 1.0 wt % of the total ink amount, a pigment in an amount of 5 to 10 wt % of the total ink amount, and the balance primarily consisting of water, and the tip has a spring which in a normal state urges and brings the tip ball into intimate contact with the inner edge of a ball holding portion at the front end of the tip and releases the intimate contact when writing is performed.

摘要翻译： 本发明提供一种适用于低粘度水性墨水的圆珠笔。 该圆珠笔包括一个圆珠笔笔芯，其中墨水贮存器通过接头与用于保持尖端球的尖端连通，其中墨水储存器充满水型圆珠笔墨水，其中包含至少一种类型的 选自乙二醇，二甘醇，丙二醇和甘油的溶剂，其总量为总油墨量的5〜40重量％，交联丙烯酸聚合物的总油墨量为0.1〜1.0重量％ ，总量为5〜10重量％的颜料，余量主要由水构成，前端具有在正常状态下促使尖端球与内缘紧密接触的弹簧 在尖端的前端处的球保持部分，并且在执行写入时释放紧密接触。