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    • 1. 发明申请
    • Method For Producing A Watermark Element, Watermark Element, And Also Applications
    • 生成水印元素,水印元素以及应用的方法
    • US20110290435A1
    • 2011-12-01
    • US13120738
    • 2009-09-25
    • Johannes KrulHendrik van de KampJan Marius van Dokkum
    • Johannes KrulHendrik van de KampJan Marius van Dokkum
    • D21H25/00B32B3/00
    • D21F1/44D21F1/0063
    • According to one aspect, the invention relates to a method for producing a watermark element (10) for forming a shadow watermark image in a substrate by means of dewatering of a fibrous suspension, wherein the watermark element (10) comprises a body with a relief side (12) having a relief (14) and a dewatering side (16) positioned opposite the relief side, perforations (18) being provided at least in the relief (14), a perforation (18) comprising a channel (20) with a channel inlet (21) at the relief side (12) and a channel outlet (22) at the dewatering side (16), which method includes the steps of forming perforations in a body in a mechanical manner and introducing a relief in the intended relief side, the perforations (18) being formed in such a way that the dewatering capacity, expressed as the open surface area of the channel inlet(s) per unit of surface area of the relief, is dependent on the height (h) of the channel inlet (21) with respect to the dewatering side (16), it being the case that the higher the height, the lower the dewatering capacity.
    • 一方面,本发明涉及一种用于制造水印元件(10)的方法,用于通过纤维悬浮液的脱水在衬底中形成阴影水印图像,其中水印元件(10)包括具有浮雕的主体 具有浮雕(14)的侧面(12)和与浮雕侧相对的脱水侧(16),穿孔(18)至少设置在浮雕(14)中,穿孔(18)包括通道(20) 在泄放侧(12)处的通道入口(21)和脱水侧(16)处的通道出口(22),该方法包括以机械方式在主体中形成穿孔并在预期中引入浮雕的步骤 穿孔(18)以这样一种方式形成,使得以浮雕的每单位表面积的通道入口的开放表面积表示的脱水能力取决于浮雕的高度(h) 通道入口(21)相对于脱水侧(16) 高度越高,脱水能力越低。
    • 6. 发明授权
    • Method for producing a watermark element, watermark element, and also applications
    • 用于制作水印元素,水印元素以及应用的方法
    • US08673114B2
    • 2014-03-18
    • US13120738
    • 2009-09-25
    • Johannes KrulHendrik Van de KampJan Marius Van Dokkum
    • Johannes KrulHendrik Van de KampJan Marius Van Dokkum
    • D21H27/02D21F1/44B28B1/48B29C33/42
    • D21F1/44D21F1/0063
    • According to one aspect, the invention relates to a method for producing a watermark element (10) for forming a shadow watermark image in a substrate by means of dewatering of a fibrous suspension, wherein the watermark element (10) comprises a body with a relief side (12) having a relief (14) and a dewatering side (16) positioned opposite the relief side, perforations (18) being provided at least in the relief (14), a perforation (18) comprising a channel (20) with a channel inlet (21) at the relief side (12) and a channel outlet (22) at the dewatering side (16), which method includes the steps of forming perforations in a body in a mechanical manner and introducing a relief in the intended relief side, the perforations (18) being formed in such a way that the dewatering capacity, expressed as the open surface area of the channel inlet(s) per unit of surface area of the relief, is dependent on the height (h) of the channel inlet (21) with respect to the dewatering side (16), it being the case that the higher the height, the lower the dewatering capacity.
    • 一方面,本发明涉及一种用于制造水印元件(10)的方法,用于通过纤维悬浮液的脱水在衬底中形成阴影水印图像,其中水印元件(10)包括具有浮雕的主体 具有浮雕(14)的侧面(12)和与浮雕侧相对的脱水侧(16),穿孔(18)至少设置在浮雕(14)中,穿孔(18)包括通道(20) 在泄放侧(12)处的通道入口(21)和脱水侧(16)处的通道出口(22),该方法包括以机械方式在主体中形成穿孔并在预期中引入浮雕的步骤 穿孔(18)以这样一种方式形成,使得以浮雕的每单位表面积的通道入口的开放表面积表示的脱水能力取决于浮雕的高度(h) 通道入口(21)相对于脱水侧(16) 高度越高,脱水能力越低。