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    • 5. 发明公开
    • 마킹펜용 잉크 조성물
    • 墨水笔墨水组合物
    • KR1020130011452A
    • 2013-01-30
    • KR1020110072611
    • 2011-07-21
    • 유한상김지현
    • 유한상김지현
    • C09D11/16
    • C09D11/16B43K8/04C08K5/05
    • PURPOSE: An ink composition for marker pens is provided to maintain good erasing performance for longtime under strong sunlight after writing by having excellent moisturizing ability and to maintain ink stability at expansion temperature(70°C). CONSTITUTION: An ink composition for marker pens contains a pigment, resin, solvent, releasing agent, surfactant, anti-sagging agent, and additive, and additionally contains 5-8 weight% of distilled water, 0.1-5 weight% of a UV blocking agent based on the total weight of the ink composition. The additive is a mixture of one or more selected from ethylene glycol, diethylene glycol, propylene glycol, polyethylene glycol, polypropylene glycol, and glycerin.
    • 目的:提供用于标记笔的油墨组合物,通过具有优异的保湿能力和在膨胀温度(70℃)下保持油墨稳定性,在书写后在强烈阳光下长时间保持良好的擦除性能。 构成:用于标记笔的油墨组合物含有颜料,树脂,溶剂,脱模剂,表面活性剂,防流挂剂和添加剂,另外含有5-8重量%的蒸馏水,0.1-5重量%的UV阻挡 基于油墨组合物的总重量。 添加剂是选自乙二醇,二甘醇,丙二醇,聚乙二醇,聚丙二醇和甘油中的一种或多种的混合物。
    • 6. 发明授权
    • 영상장치를 내장한 칠판
    • 具有显示监视器的板
    • KR100881656B1
    • 2009-02-06
    • KR1020080002264
    • 2008-01-08
    • 곽노윤곽노찬유한상
    • 곽노윤곽노찬유한상
    • B43L1/00B43L1/04
    • A video equipment built-in blackboard is provided to give a lecture while carrying out imaging and writing on the blackboard side by side, to extend a writing part in which writing on the blackboard is possible, and to automatically remove contents written by writing on the blackboard at the same time. A video equipment built-in blackboard comprises: a body functioning as a blackboard frame; an electromagnetic plate which is positioned within the body and has magnetism according to the application of a power source; a flexible writing member(40) positioned in front of the electromagnetic plate such that the writing member is adhered to the electromagnetic plate by the magnetism of the electromagnetic plate; a drive motor(50) positioned in rear of the electromagnetic plate and driven to move the flexible writing member side to side; and a guide roller(60) positioned adjacently to the flexible writing member to move the flexible writing member smoothly. The flexible writing member includes a black or white board, a window, and a gear groove. The electromagnetic plate a movable electromagnetic plate(21), a fixed electromagnetic plate(22), and guide rails(23).
    • 提供内置黑板的设备,在黑板上并行进行成像和写作的同时进行演讲,延长书写部分,在黑板上书写的部分可以自动删除, 黑板在同一时间。 内置黑板的视频设备包括:作为黑板框架的主体; 电磁板,其位于体内并且根据电源的应用具有磁性; 位于电磁板前面的柔性书写构件(40),使得书写构件通过电磁板的磁力粘附在电磁板上; 驱动马达(50),其位于所述电磁板的后方并被驱动以将所述柔性书写构件侧向移动; 以及与柔性书写构件相邻设置的平滑地移动柔性书写构件的引导辊(60)。 柔性书写构件包括黑色或白色板,窗口和齿轮槽。 电磁板为可移动电磁板(21),固定电磁板(22)和导轨(23)。