Method for preparing tinted contact lens
    95.
    发明授权
    Method for preparing tinted contact lens 失效
    着色隐形眼镜的制备方法

    公开(公告)号:US5938795A

    公开(公告)日:1999-08-17

    申请号:US402410

    申请日:1995-03-10

    摘要: An improved method for imparting a tint or color to a soft, hydrogel contact lens by uniformly dispersing a dye throughout the lens. The dye is a water-soluble halotriazine dye. The dye is reacted with a hydrophilic monomer to prepare a reactive dye containing predominantly monofunctionality. The monomer is then subjected to polymerization in the presence of a homogeneous solution of the reactive dye in the monomer under conditions to yield the hydrophilic polymer from which the lens is formed. The dye becomes bonded to the polymer during polymerization. The finished lens does not require soaking in an aqueous solution of the dye to impart the desired tint or color to the lens. Additionally, the dye uniformly dispersed throughout the lens according to the improved method does not leach out of the lens or migrate within the lens. Furthermore, the lens does not need to be washed with aqueous base to bond the dye to the lens.

    摘要翻译: 一种通过使染料均匀地分散在整个透镜中而使柔软的水凝胶隐形眼镜赋予着色或着色的改进方法。 染料是水溶性卤代三嗪染料。 将染料与亲水性单体反应以制备主要具有单官能度的活性染料。 然后在反应性染料的均匀溶液存在下将单体在单体的条件下进行聚合,得到形成透镜的亲水性聚合物。 聚合期间染料与聚合物结合。 成品镜片不需要在染料的水溶液中浸泡以赋予镜片所需的色调或颜色。 此外,根据改进的方法均匀分散在整个透镜中的染料不会从透镜中浸出或在透镜内迁移。 此外,透镜不需要用水性碱洗涤以将染料粘合到透镜上。

    Multi-color printed nonwoven laminates
    98.
    发明授权
    Multi-color printed nonwoven laminates 失效
    多色印刷无纺层压板

    公开(公告)号:US5503076A

    公开(公告)日:1996-04-02

    申请号:US161101

    申请日:1993-12-01

    申请人: Richard S. Yeo

    发明人: Richard S. Yeo

    IPC分类号: B32B7/14 D04H13/00 D06P3/00

    CPC分类号: B32B7/14 D04H1/593

    摘要: Disclosed herein is a multi-color printed nonwoven laminate and a process for producing the laminate. The laminate includes a fibrous nonwoven web facing layer and a substrate layer bonded to the facing layer by a plurality of colored adhesive inks applied in a discrete bond pattern between the facing and substrate layers. The inks must provide a cohesion strength between the layers of at least about 38,000 N/m.sup.2 and the inks must be visible through the surface or the facing layer. The laminate so produced has good delamination characteristics, is aesthetically pleasing and the printed patterns are resistant to abrasion due to the position and nature of the inks. Suitable uses include an outercover for personal care absorbent articles such as diapers, training pants, incontinence garments, sanitary napkins, bandages and the like as well as a material for use as all or a portion of an article of clothing or a surgical drape.

    摘要翻译: 本文公开了多色印刷非织造层压材料和用于制造层压体的方法。 层压体包括通过以面对面和基底层之间的离散粘合图案施加的多种着色粘合剂油墨而粘结在面层上的纤维非织造纤维网面层和基底层。 这些油墨必须在至少约38,000N / m 2的层之间提供内聚强度,并且油墨必须通过表面或面层可见。 如此生产的层压材料具有良好的分层特性,在美学上令人愉快,并且印刷图案由于油墨的位置和性质而耐磨损。 合适的用途包括用于个人护理吸收制品的外罩,例如尿布,训练裤,失禁服,卫生巾,绷带等,以及用作衣服或手术衣服的全部或一部分的材料。