All-dielectric optical diffractive pigments
    2.
    发明申请
    All-dielectric optical diffractive pigments 有权
    全介电光学衍射颜料

    公开(公告)号:US20030224164A1

    公开(公告)日:2003-12-04

    申请号:US10365090

    申请日:2003-02-11

    IPC分类号: B32B005/16

    摘要: All-dielectric diffractive pigment flakes can be applied to an object to impart a diffractive effect to the object without substantially changing the background color of the object. In one case, such diffractive pigment flakes can be applied to a white object to impart a white diffractive effect. The thickness of the dielectric layers in the diffractive pigment flakes can be chosen to provide thin-film interference, as well as diffraction from the interfaces between layers patterned with a diffraction grating. In some cases, the thin-film interference can provide color shifting in addition to the diffractive effect.

    摘要翻译: 全介电衍射颜料薄片可以施加到物体上以赋予物体衍射效果,而基本上不改变物体的背景颜色。 在一种情况下,这种衍射颜料薄片可以施加到白色物体上以赋予白色衍射效果。 可以选择衍射颜料薄片中的电介质层的厚度以提供薄膜干涉,以及来自用衍射光栅图案化的层之间的界面的衍射。 在某些情况下,除了衍射效应之外,薄膜干涉还可以提供颜色偏移。

    Magnetic planarization of pigment flakes
    4.
    发明申请
    Magnetic planarization of pigment flakes 有权
    颜料薄片的磁平面化

    公开(公告)号:US20040009309A1

    公开(公告)日:2004-01-15

    申请号:US10293817

    申请日:2002-11-13

    IPC分类号: B05D001/12

    摘要: A magnetic field is applied to planarize magnetic pigment flakes relative to a surface. Pigment flakes, such as optically variable pigment flakes, are used in a variety of paints, inks, extrusions, powder coatings, and other forms for decorative and security applications. In many applications pigment flakes tend to align parallel to each other and to the surface to which they are applied. If the pigment flakes include a suitable magnetic structure, a magnetic field can be applied to subsequently align the flakes or enhance the alignment of the flakes in the plane of the substrate if the carrier that the flakes are dispersed in is still fluid. In some printing operations, pigment flakes that are applied parallel to the substrate are pulled out of plane when the print screen or printing die is lifted off the substrate. Application of a magnetic field can re-align pigment flakes to the plane of the substrate, enhancing the visual quality of the printed image, especially with optically variable pigments.

    摘要翻译: 施加磁场以使磁性颜料片相对于表面平坦化。 用于各种油漆,油墨,挤出物,粉末涂料和其它用于装饰和安全应用的形式的颜料薄片,例如光学可变的颜料薄片。 在许多应用中,颜料薄片倾向于彼此平行并且与它们所施加的表面对齐。 如果颜料薄片包括合适的磁性结构,则如果薄片分散在其中的载体仍然是流体,则可以施加磁场以随后对准薄片或增强薄片在基材平面中的对准。 在一些印刷操作中,当印刷屏幕或印刷模具从衬底上提起时,平行于衬底施加的颜料薄片被拉出平面。 磁场的应用可以将颜料薄片重新调整到基底的平面,增强印刷图像的视觉质量,特别是使用光学可变颜料。