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公开(公告)号：US4982687A
公开(公告)日：1991-01-08
申请号：US491991
申请日：1990-03-12
CPC分类号： G11B5/848 , B05C11/10 , B05C11/1039 , B05C5/0254
摘要： A method and apparatus for coating a magnetic liquid onto a moving substrate to form a magnetic recording medium having an improved product yield and reduced streaking. Coating liquid is fed to an extruder by a second pump, while excess coating liquid is extracted from the extruder and returned to a storage tank with a second pump. When the coating operation is to be stopped, the extruder is bypassed between the first and second pumps and a portion of the output from the first pump is returned directly to the storage tank so that the flow rates through both pumps are the same during coating and idling times.
摘要翻译： 一种用于将磁性液体涂覆到移动的基板上以形成具有改善的产品产量和减少条纹的磁记录介质的方法和装置。 将涂布液通过第二泵送入挤出机，同时从挤出机中取出多余的涂布液，并将其返回到具有第二泵的储罐中。 当涂覆操作要停止时，挤出机在第一和第二泵之间被旁路，并且来自第一泵的输出的一部分直接返回到储罐，使得在涂覆期间通过两个泵的流速是相同的，并且 空闲时间
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公开(公告)号：US5119757A
公开(公告)日：1992-06-09
申请号：US505086
申请日：1990-04-05
申请人： Naoyoshi Chino , Norio Shibata , Tsunehiko Sato
发明人： Naoyoshi Chino , Norio Shibata , Tsunehiko Sato
CPC分类号： G03C1/74 , B05C5/0254 , G03C2001/7459
摘要： An application device for applying a liquid such as a magnetic coating liquid to the surface of a continuously moving web in which the amount of chipping of the surface portions of the outlet portion of the coating head thereof, and hence the amount of streaking in the applied layer of liquid, are remarkably reduced. The outlet portion of the application head is made of a very hard alloy, preferably tungsten carbide, containing crystal grains of a carbide 5 .mu.m or less in mean diameter conjoined to each other by a metal, preferably cobalt in an amount of 12% or less.
摘要翻译： 一种施加装置，用于将液体如磁性涂布液施加到连续移动的织物的表面，其中涂覆头的出口部分的表面部分的碎裂量以及因此在涂覆头的出口部分的条纹量 液体层显着减少。 应用头的出口部分由非常硬的合金（优选碳化钨）制成，其包含通过金属（优选钴）以12％的量相互连接的平均直径为5微米或更小的碳化物的晶粒， 减。
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13.发明授权Coating method and apparatus of an extrusion-type coating head having a filtering element therefor 失效具有过滤元件的挤出型涂布头的涂布方法和装置
公开(公告)号：US5226963A
公开(公告)日：1993-07-13
申请号：US866258
申请日：1992-04-10
申请人： Norio Shibata , Tsunehiko Sato
发明人： Norio Shibata , Tsunehiko Sato
CPC分类号： B05C5/0254 , B05C1/083
摘要： A coating method and apparatus employing an extrusion-type coating head in which the probability of damaging the surface of the layer being formed on a support is remarkably decreased. Coating solution, such as a magnetic solution for forming a magnetic recording tape or the like, is supplied by a pump through a pipe line and then a filtering element to the extrusion-type coating head, which applies the coating solution directly or through a coating roll onto a running support. The filtering element, which is disposed at or near the coating solution supplying inlet of the extrusion-type coating head, has openings whose diameter is smaller than a coating clearance between a doctor edge of the extrusion-type coating head and the support or coating roll.
摘要翻译： 使用挤出型涂布头的涂布方法和装置显着降低了在支撑体上形成的层的表面的损坏的可能性。 例如用于形成磁记录带等的磁性溶液的涂布溶液由泵通过管线提供，然后将过滤元件提供给挤出型涂覆头，其直接施加涂布溶液或通过涂布 滚动到正在运行的支持。 布置在挤出型涂覆头的涂布溶液供应入口处或附近的过滤元件具有直径小于挤出型涂覆头的刮刀边缘与支撑或涂布辊之间的涂布间隙的开口 。
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公开(公告)号：US5203922A
公开(公告)日：1993-04-20
申请号：US779903
申请日：1991-10-21
申请人： Norio Shibata , Yasuhito Hiraki , Tsunehiko Sato
发明人： Norio Shibata , Yasuhito Hiraki , Tsunehiko Sato
IPC分类号： B05C5/02
CPC分类号： B05C5/0254
摘要： An application device for applying a coating liquid to a moving web which forms an applied layer of uniform thickness and with smooth surface properties. The sides of a slotted portion of an extrusion-type application head are provided with sloped or stepped portions in regions adjacent liquid-free areas of the web. This prevents scratching of the web and accumulation of extraneous matter at the edge portions of the application head.
摘要翻译： 一种施加装置，用于将涂布液施加到形成均匀厚度且具有光滑表面性质的施加层的移动幅材上。 挤出型施加头的开槽部分的侧面在与幅材的无液体区域相邻的区域中设置有倾斜或阶梯部分。 这防止了卷材的刮擦和外来物质在施用头部的边缘部分积聚。
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15.发明授权Method for applying plural liquids to continuously moving nonmagnetic carrier 失效将多种液体应用于连续移动的非磁性载体的方法
公开(公告)号：US4994306A
公开(公告)日：1991-02-19
申请号：US492011
申请日：1990-03-12
CPC分类号： G11B5/8404 , B05C5/0254 , B05C9/06 , Y10S428/90
摘要： A method of simultaneously applying a plurality of liquids to a carrier to form respective layers thereon without causing a chromatic nonuniformity or longitudinal streaking in the layers, and to thus stably manufacture a magnetic recording medium of good magnetic recording properties. Liquids containing organic solvents are simultaneously applied to a continuously moving nonmagnetic carrier by an application head of the extrusion type so as to form respective plural layers on the carrier to manufacture a magnetic recording medium. The difference between the viscosities of the liquids present in the slots of the application head and which are to be applied to the carrier to form at least mutually adjacent ones of the layers is set at 50 cp or less, or the difference between the viscosities of the liquids present in the pockets of the application head or is set at 500 cp or less.
摘要翻译： 同时将多种液体施加到载体以在其上形成各层而不会在层中引起色差不均匀或纵向条纹的方法，从而稳定地制造具有良好磁记录性能的磁记录介质。 含有有机溶剂的液体通过挤出型涂布头同时施加到连续移动的非磁性载体上，以在载体上形成相应的多层以制造磁记录介质。 存在于应用头的槽中并且要施加到载体以形成至少相互相邻的层的液体的粘度之间的差设定为50cp或更小，或者粘度之间的差异 存在于应用头的口袋中的液体或设定在500cp以下。
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16.发明授权Method and apparatus for coating web while preventing contact of edge portions thereof with coating head 失效涂布纸幅的方法和装置，同时防止其边缘部分与涂覆头接触
公开(公告)号：US5114753A
公开(公告)日：1992-05-19
申请号：US777628
申请日：1991-10-16
申请人： Norio Shibata , Tsunehiko Sato , Naoyoshi Chino , Yasuhito Hiraki
发明人： Norio Shibata , Tsunehiko Sato , Naoyoshi Chino , Yasuhito Hiraki
CPC分类号： B05D3/042 , B05C5/0254 , B05D1/26 , G03C1/74 , G03C2001/7459
摘要： A coating material and apparatus in which the edge portions of the web being coated are supported off the edge portions of the coating head. In one embodiment, recesses are formed in the edge portions of the coating head, while in another embodiment a fluid is jetted towards the edge portions of the web. With the invention, scratching and the like of the edge portions of the web are eliminated, and the web is coating to a uniform thickness in the width direction thereof.
摘要翻译： 一种涂覆材料和装置，其中所述卷材的边缘部分被涂覆在所述涂覆头的边缘部分上。 在一个实施例中，在涂覆头的边缘部分中形成凹部，而在另一个实施例中，流体朝向腹板的边缘部分喷射。 通过本发明，可以消除网状物的边缘部分的划伤等，并且将幅材在其宽度方向上涂覆均匀的厚度。
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公开(公告)号：US5072688A
公开(公告)日：1991-12-17
申请号：US476218
申请日：1990-02-07
申请人： Naoyoshi Chino , Yasuhito Hiraki , Norio Shibata , Tsunehiko Sato
发明人： Naoyoshi Chino , Yasuhito Hiraki , Norio Shibata , Tsunehiko Sato
CPC分类号： B05C5/0254 , B05C9/06 , B05D1/265 , G11B5/848 , Y10S118/04
摘要： A coating method and an extrusion-type coating head in which turbulence at the junction between two flows of coating materials is prevented to provide multi-layer simultaneous coating over a wide range of coating rates and with a good coating quality. An intermediate block is sandwiched betwen a rear block defining a back edge and a front block defining a doctor edge. Two coating flows pass through slits formed on either side of the intermediate block, joining at the top end of the intermediate block and flowing together into a short slot extending between the end of the intermediate block and the outlet of the head.
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公开(公告)号：US5011714A
公开(公告)日：1991-04-30
申请号：US541674
申请日：1990-06-21
CPC分类号： G11B5/848 , B05C11/10 , B05C11/1039 , B05C5/0254
摘要： A method and apparatus for coating a magnetic liquid onto a moving substrate to form a magnetic recording medium having an improved product yield and reduced streaking. Coating liquid is fed to an extruder by a second pump, while excess coating liquid is extracted from the extruder and returned to a storage tank with a second pump. When the coating operation is to be stopped, the extruder is bypassed between the first and second pumps and a portion of the output from the first pump is returned directly to the storage tank so that the flow rates through both pumps are the same during coating and idling times.
摘要翻译： 一种用于将磁性液体涂覆到移动的基板上以形成具有改善的产品产量和减少条纹的磁记录介质的方法和装置。 将涂布液通过第二泵送入挤出机，同时从挤出机中取出多余的涂布液，并将其返回到具有第二泵的储罐中。 当涂覆操作要停止时，挤出机在第一和第二泵之间被旁路，并且来自第一泵的输出的一部分直接返回到储罐，使得在涂覆期间通过两个泵的流速是相同的，并且 空闲时间
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公开(公告)号：US4984533A
公开(公告)日：1991-01-15
申请号：US393336
申请日：1989-08-11
CPC分类号： B05C5/0262 , B29C47/165 , B29C47/0021
摘要： An extrusion-type liquid application device having a simple construction but in which the width of the coating slit can easily be adjusted, even during a coating operation. Thick members are mounted on the doctor portion of a coating head extending perpendicular to the liquid discharge portion of the coating head. The thick members have acting portions at their upper ends abutting the surface of the doctor portions, central fulcrum portions, and opposite end portions provided with adjusting members. By adjusting the adjusting members, the slit width can be adjusted.
摘要翻译： 一种挤出型液体施加装置，其结构简单，即使在涂布操作中也可以容易地调整涂布缝的宽度。 厚的构件安装在垂直于涂覆头的液体排出部分延伸的涂覆头的刮刀部分上。 厚部件在其上端处具有邻接于刮刀部分的中心支点部分和设置有调节部件的相对端部的表面的作用部分。 通过调整调节构件，可以调节狭缝宽度。
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公开(公告)号：US4717603A
公开(公告)日：1988-01-05
申请号：US930475
申请日：1986-11-14
CPC分类号： B05D1/26 , B05C5/0254 , G11B5/842
摘要： A method of applying a liquid to a moving web while pushing an extrusion application head to the moving web without supporting the moving web on the reverse side thereof. The application is performed while the accumulation of the liquid to be applied to the moving web is maintained by (a) the moving web and (b) an edge of the back blade of the extrusion application head, the edge being defined by the intersection of (1) a first surface of the back blade which faces the front blade and which is nearest the web, and (2) a second surface of the back blade which is more remote from the front blade than the first surface and, wherein the pressure of the liquid of the accumulation located between the web and the outlet portion of the slit of the extrusion application head is set within a range from 0.2 kg/cm.sup.2 gauge to 0.8 kg/cm.sup.2 gauge per 50 cm of width of applied liquid.
摘要翻译： 一种在将挤出施加头推向移动幅材的同时将液体施加到移动幅材上的方法，而不在其反面上支撑移动幅材。 当通过（a）移动幅材和（b）挤出施加头的后叶片的边缘来维持施加到移动幅材上的液体的积聚时，执行应用，边缘由 （1）后刀片的面向前刀片并且最靠近腹板的第一表面，和（2）后刀片的比第一表面更远离前刀片的第二表面，并且其中压力 位于幅材和挤出施加头的狭缝的出口部分之间的积聚液的液体被设定在每50cm宽的施加液体的0.2kg / cm 2表压至0.8kg / cm2表压的范围内。
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