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53 条记录 (耗时 0.018 秒)

    Continuous inkjet printing
    1.
    发明授权
    Continuous inkjet printing 有权
    连续喷墨打印

    公开(公告)号：US08186784B2

    公开(公告)日：2012-05-29

    申请号：US12679912

    申请日：2008-09-09

    申请人： Andrew Clarke ,  Sarah Rieubland

    发明人： Andrew Clarke ,  Sarah Rieubland

    IPC分类号： B41J29/38 ,  B41J2/14 ,  B41J2/16

    CPC分类号： B41J2/03

    摘要： A continuous inkjet method in which liquid passes through a nozzle, the liquid being jetted comprising one or more dispersed or particulate components and where the particle Peclet number, Pe, defined by Pe = 1.25 ⁢ ϕ T · d eff 3 ⁢ μ S kT ⁢ ρ ⁢ ⁢ U 3 x is less than 500 and where the effective particle diameter, deff, is calculated as d eff = ( ∫ 0 ∞ ⁢ d 3 ⁢ ϕ ⁡ ( d ) ⁢ ⁢ ⅆ d ∫ 0 ∞ ⁢ ϕ ⁡ ( d ) ⁢ ⁢ ⅆ d ) 1 / 3 where φ(d) is the volume fraction of the particles or components of diameter d (m) and where φT is the total volume fraction of dispersed or particulate components, μS is the viscosity of the liquid without particles (Pa·s), ρ is the liquid density (kg/m3), U is the jet velocity (m/s), x is the length of the nozzle in the direction of flow (m), k is Boltzmann's constant (J/K) and T is temperature (K). The present invention limits the magnitude of flow induced noise generated by particulate components in the ink to maximize the efficiency of drop formation and to minimize adverse interactions with the nozzle.

    摘要翻译： 一种连续喷墨方法，其中液体通过喷嘴，喷射的液体包含一种或多种分散或微粒组分，其中由Pe = 1.25＆phis定义的颗粒Peclet数Pe; T·d eff3μS kT＆rgr; üU 3 x小于500，其中有效粒径deff被计算为d eff =（∫0∞⁢d 3＆phis;⁡（d）⁢ⅆd∫0∞⁢⁢;⁡ d）⁢d）1/3其中＆phgr（d）是直径d（m）的颗粒或组分的体积分数，其中t是分散或颗粒组分的总体积分数，μS是 没有颗粒的液体的粘度（Pa·s），＆rgr; 是液体密度（kg / m3），U是喷射速度（m / s），x是喷嘴在流动方向上的长度（m），k是玻尔兹曼常数（J / K），T是温度 （K）。 本发明限制了由油墨中的颗粒组分产生的流动引起的噪声的大小，以最大限度地提高液滴形成的效率并最小化与喷嘴的不利相互作用。

    CONTINUOUS INKJET PRINTING
    2.
    发明申请
    CONTINUOUS INKJET PRINTING 有权
    连续喷墨打印

    公开(公告)号：US20100321449A1

    公开(公告)日：2010-12-23

    申请号：US12679912

    申请日：2008-09-09

    申请人： Andrew Clarke ,  Sarah Rieubland

    发明人： Andrew Clarke ,  Sarah Rieubland

    IPC分类号： B41J2/02

    CPC分类号： B41J2/03

    摘要： A continuous inkjet method in which liquid passes through a nozzle, the liquid being jetted comprising one or more dispersed or particulate components and where the particle Peclet number, Pe, defined by Pe = 1.25  φ T · d eff 3  μ S kT  ρ   U 3 x is less than 500 and where the effective particle diameter, deff, is calculated as d eff = ( ∫ 0 ∞  d 3  φ  ( d )    d ∫ 0 ∞  φ  ( d )    d ) 1 / 3 where Φ(d) is the volume fraction of the particles or components of diameter d (m) and where ΦT is the total volume fraction of dispersed or particulate components, μS is the viscosity of the liquid without particles (Pa.s), ρ is the liquid density (kg/m3), U is the jet velocity (m/s), x is the length of the nozzle in the direction of flow (m), k is Boltzmann's constant (J/K) and T is temperature (K). The present invention limits the magnitude of flow induced noise generated by particulate components in the ink to maximise the efficiency of drop formation and to minimise adverse interactions with the nozzle.

    摘要翻译： 一种连续的喷墨方法，其中液体通过喷嘴，喷射的液体包含一种或多种分散或微粒组分，其中由Pe = 1.25和 T·d eff 3μS kT＆rgr U 3 x小于500，并且其中有效粒径deff被计算为d eff =（∫0∞compl d 3 ph∫∫∫∫∫∫∫∫∫∫∫∫∫∫∫∫∫ d）技术d）1/3其中Φ（d）是直径d（m）的颗粒或组分的体积分数，其中ΦT是分散或颗粒组分的总体积分数，μS是 液体无颗粒（Pa.s），＆rgr; 是液体密度（kg / m3），U是喷射速度（m / s），x是喷嘴在流动方向上的长度（m），k是玻尔兹曼常数（J / K），T是温度 （K）。 本发明限制了由油墨中的颗粒组分产生的流动引起的噪声的大小，以最大限度地提高液滴形成的效率并最小化与喷嘴的不利相互作用。

    Apparatus and method of coating a web
    6.
    发明授权
    Apparatus and method of coating a web 失效
    涂布网的装置和方法

    公开(公告)号：US06638576B2

    公开(公告)日：2003-10-28

    申请号：US10128086

    申请日：2002-04-23

    申请人： Andrew Clarke ,  Christopher L. Bower ,  Kim E. Goppert

    发明人： Andrew Clarke ,  Christopher L. Bower ,  Kim E. Goppert

    IPC分类号： B05D126

    CPC分类号： B05C5/007 ,  B05C9/06 ,  B05D1/007 ,  B05D1/28 ,  G03C1/74 ,  G03C2001/7411 ,  G03C2001/7496

    摘要： An apparatus and method of bead coating a web using a coating die. The method comprises forming one or more layers of coating material using the coating die and allowing the one or more layers to impinge on the web as the web and die move relative to each other. The web surface has an average peak to peak roughness as defined by DIN 4768, ISO4287 or BS1134 between 2 &mgr;m and 20 &mgr;m. The layer of coating material forming a wetting layer adjacent to the web has a viscosity of between 35 mPas and 200 mPas measured at a shear rate of substantially 10,000 s−1. An electrostatic field is provided at the point at which the layers impinge on the web to stabilize the layers of coating material. The method enables the web being coated to be conveyed at a speed greater than 400 cm/s relative to the coating die whilst avoiding the problem of air entrainment.

    摘要翻译： 一种使用涂层模头涂布网的设备和方法。 该方法包括使用涂层模具形成一层或多层涂层材料，并允许一个或多个层在幅材和模具相对于彼此移动时撞击在幅材上。 纸幅表面具有平均峰 - 峰粗糙度，由DIN 4768，ISO4287或BS1134定义，在2um和20um之间。 形成与纤维网相邻的润湿层的涂料层的粘度在基本上为10,000s -1的剪切速率下测得的35mPas和200mPas之间的粘度。 在层压在纤维网上的点处提供静电场，以稳定涂层材料层。 该方法使得能够以相对于涂层模具大于4​​00cm / s的速度输送被涂布的纸幅，同时避免了空气夹带的问题。

    Monodisperse droplet generation
    8.
    发明授权
    Monodisperse droplet generation 有权
    单分散液滴生成

    公开(公告)号：US08302880B2

    公开(公告)日：2012-11-06

    申请号：US12664941

    申请日：2008-06-27

    申请人： Andrew Clarke

    发明人： Andrew Clarke

    IPC分类号： B05B17/04

    CPC分类号： B01F3/0807 ,  B01F5/0646 ,  B01F5/0654 ,  B01F13/0062

    摘要： A method of creating substantially monodisperse droplets comprising supplying a first fluid (1) and a second immiscible fluid (2) within a set of channels, the second fluid surrounding the first fluid and filling the channels to form a composite jet. The composite jet passes through an entrance channel (4) into a wider cavity (3), where the first fluid breaks into droplets (5), the resulting composite of droplets of the first fluid within the second fluid passing through an exit channel (6). The cross sectional area of the exit channel perpendicular to the flow is smaller than the cross sectional area of the cavity and the passage of a droplet of the first fluid out of the cavity via the exit perturbs the composite flow field within the cavity such that the incoming jet of the first fluid is perturbed.

    摘要翻译： 一种产生基本上单分散液滴的方法，包括在一组通道内提供第一流体（1）和第二不混溶流体（2），第二流体包围第一流体并填充通道以形成复合射流。 复合射流通过入口通道（4）进入更宽的空腔（3），其中第一流体破裂成液滴（5），第二流体内的第一流体的液滴经过出口通道（6） ）。 垂直于流动的出口通道的横截面面积小于空腔的横截面积，并且通过出口使第一流体的液滴从腔体通过扰乱腔内的复合流场，使得 第一流体的入射射流受到干扰。

    METHOD OF PREPARING STIMULUS-RESPONSIVE POLYMERIC PARTICLES
    10.
    发明申请
    METHOD OF PREPARING STIMULUS-RESPONSIVE POLYMERIC PARTICLES 审中-公开
    制备刺激性聚合物颗粒的方法

    公开(公告)号：US20120046407A1

    公开(公告)日：2012-02-23

    申请号：US13141702

    申请日：2009-12-17

    申请人： Andrew Clarke ,  Stephanie Vronique Desrousseaux ,  Danuta Gibson ,  John Martin Higgins ,  Andrew Michael Howe ,  Trevor John Wear

    发明人： Andrew Clarke ,  Stephanie Vronique Desrousseaux ,  Danuta Gibson ,  John Martin Higgins ,  Andrew Michael Howe ,  Trevor John Wear

    IPC分类号： C09D11/10 ,  C08L21/02 ,  B01J13/02 ,  H01B1/20 ,  H01F1/00 ,  C08F257/02 ,  C08F265/10 ,  C08L51/06

    CPC分类号： C08F2/22 ,  B01J13/14 ,  C08F2/20 ,  C08F222/38 ,  C08F265/10 ,  C09D11/30 ,  C08F222/385

    摘要： A method of making a polymeric compound, comprising discrete particles responsive to an external stimulus, that is resistant to aggregation in high-shear fields, which includes the addition of a polymerization initiator to a reaction mixture comprising a monomer corresponding to the polymeric compound, wherein the method comprises the portion-wise addition of aliquots of a cross-linking agent to the reaction mixture, wherein an aliquot of the cross-linking agent is added to the reaction mixture both before the addition of the polymerization initiator and after the polymerization has progressed substantially to completion. The polymer particles are largely immune to the effects of transient shear rates at least as high as 106 s−1, whilst maintaining their thermal responsiveness and being present at moderate concentration. The structural and chemical modifications brought by the delayed portion-wise addition of the cross-linking agent allow an improvement in stability in a high-shear field.

    摘要翻译： 一种制备高分子化合物的方法，包括响应于外部刺激的离散颗粒，其对高剪切场中的聚集具有抗性，其包括向包含对应于聚合物的单体的反应混合物中加入聚合引发剂，其中 该方法包括向反应混合物中分批加入交联剂的等分试样，其中在加入聚合引发剂之前和聚合进行后将等份的交联剂加入到反应混合物中 大致完成。 聚合物颗粒很大程度上免受瞬态剪切速率的影响，至少高达106s-1，同时保持其热响应性并以适中的浓度存在。 通过延迟分批加入交联剂引起的结构和化学改性允许提高高剪切场中的稳定性。