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公开(公告)号：US3682679A
公开(公告)日：1972-08-08
申请号：US3682679D
申请日：1969-02-10
Applicant: AGFA GEVAERT AG
Inventor： HERZHOFF PETER , GREF HANS , MAUS FRITZ , WASSER WILLI , BROWATZKI KURT , FRIEDSAM JOSEF , SCHWEICHER WOLFGANG
CPC classification number: G03C1/74
Abstract: A METHOD OF COATING A STRIP OF VISCOUS MATERIAL ON A MOVABLE SUBSTRATE BY FEEDING THE MATERIAL THROUGH A NARROW GAP BETWEEN FEED MEANS AND A MOVABLE SUBSTRATE UNDER A STATIC PRESSURE DIFFERENTIAL BETWEEN THE INLET AND OUTLET OF THE GAP. THE GAP IS SEVERAL TIMES WIDER THAN THE WET FORMED LAYER AFTER FORMATION. IN THE INITIAL LAYER FORMING STEPS AND IN THE CONCLUDING LAYER FORMING STEPS THE HEIGHT OF THE GAP FROM THE SUBSTRATE IS REDUCED SO THAT IT IS SPACED ABOUT TWICE THE THCKNESS FROM THE SUBSTRATE. IN THE LAYER FORMING OPERATION BETWEEN THESE
INITIAL AND CLOSING STEPS THE GAP IS RAISED IN HEIGHT IN ACCORDANCE WITH THE NORMAL STATIC PRESSURE DIFFERENTIAL. A UNIFORM THICKNESS OF THE FORMED LAYER IS OBTAINED.-
Patent Agency Ranking2.发明授权
公开(公告)号：US3900326A
公开(公告)日：1975-08-19
申请号：US37549873
申请日：1973-07-02
Applicant: AGFA GEVAERT AG
Inventor： HERZHOFF PETER , GREF HANS , MAUS FRITZ , PLATZ STEPHAN , FRIEDSAM JOSEF , SCHWEICHER WOLFGANG , BEHR ROLF , WASSER WILLI , BROWATZKI KURT
IPC: G03C1/74
CPC classification number: G03C1/74
Abstract: A process and apparatus for improving and maintaining the viscosity of gelatino silver halide emulsions with a high solids content in a reservoir bath for tape coating a photographic emulsion on a support, wherein the coating emulsion is partly withdrawn from the bath and circulated through a falling film evaporator to which a vacuum is applied and processed to modify, control and improve the viscosity of the withdrawn emulsion. The viscosity of the viscous emulsion is controlled by passing the emulsion in a falling film through an evaporator with ballast steam injected under high velocity into the falling film in a parallel direction to produce a shearing force. The evaporator contains a reduced atmosphere through which the falling film passes. The steam is partially condensed in the emulsion and the emulsion is also heated through the walls of the evaporator with resultant evaporation. The temperature of the emulsion at the outlet is directly related to the temperature/vapor pressure curve of the reduced atmosphere in the evaporator and viscosity is attained which is maintained until the emulsion is applied to the web support.
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公开(公告)号：US3663292A
公开(公告)日：1972-05-16
申请号：US3663292D
申请日：1969-02-10
Applicant: AGFA GEVAERT AG
Inventor： HERZHOFF PETER , GREF HANS , MUAS FRITZ , WASSER WILLI , BROWATZKI KURT , FRIEDSAM JOSEF , SCHWEICHER WOLFGANG
CPC classification number: B05D1/26 , B05C5/0254 , G03C1/74 , Y10S430/136
Abstract: A method of coating a strip of viscous solution on a movable substrate by feeding the coating solution through a narrow gap between coating apparatus which includes feed means and the movable substrate under a static pressure differential between the inlet and the outlet of the gap wherein the gap is part of a coating chamber of the coating apparatus. The gap is wider than the wet formed layer after formation. The coating chamber is connected to a vacuum means at the side of the coating from which the substrate is introduced. A negative pressure is effectuated at the inlet side of the coating apparatus. The vacuum means having a vacuum which seals the inlet end of the narrow gap in the coating apparatus by sucking air from the vacuum means through a diaphragm which withdrawal is at a uniform rate of flow.
Abstract translation: 通过在间隙的入口和出口之间的静压差下将涂布溶液通过包括进料装置的涂布装置和可移动基材之间的窄间隙进行涂布，将粘性溶液条涂布在可移动基底上的方法，其中间隙 是涂布装置的涂布室的一部分。 间隙比形成后的湿成形层宽。 涂层室与引入基板的涂层侧的真空装置连接。 在涂布装置的入口侧施加负压。 真空装置具有真空，该真空通过从隔膜中吸入空气来密封涂布装置中的窄间隙的入口端，该膜片的取出处于均匀的流速。
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公开(公告)号：US3638604A
公开(公告)日：1972-02-01
申请号：US3638604D
申请日：1969-02-10
Applicant: AGFA GEVAERT AG
Inventor： HERZHOFF PETER , GREF HANS , BEHR ROLF , MAUS FRITZ , SCHWEICHER WOLFGANG , WASSER WILLI , FRIEDSAM JOSEF , BROWATZKI KURT
CPC classification number: B05D1/26 , B29C47/0021 , B29C47/14 , B29C47/32 , D21H5/0042 , D21H23/46 , G03C1/74
Abstract: A machine for coating a layer of a viscous emulsion on a movable support having a feed means operatively associated with the support with a narrow gap between the feed means and the support for forming the viscous emulsion into a layer on the movable support. The feed means contains a chamber opening into the narrow gap, and the machine is arranged so that the viscous emulsion fed from the chamber and formed by the narrow gap is under an adjustable static differential in pressure between the inlet end of the narrow gap which has a lower pressure on the emulsion and the outlet end of the gap which has a higher pressure. A cavity in a wall-adjoining the chamber in the feed means has one opening into the chamber sidewall and containing a compressible gas acts as an air cushion and reduces the variations in pressure on the feed material during feeding as the gas is enclosable within the cavity by the passage of feed material through the chamber.
Abstract translation: 一种用于在可移动支撑件上涂覆粘稠乳液层的机器，其具有与所述支撑件可操作地相关联的进料装置，所述进料装置在所述进料装置和所述支撑件之间具有窄的间隙，以将所述粘性乳液形成所述可移动支撑件上的层。 进料装置包含通向狭窄间隙的腔室，并且机器被布置成使得从腔室供给并由窄间隙形成的粘性乳液在窄间隙的入口端之间处于可调节的静压差之下 乳液的压力较低，间隙的出口端压力较高。 在进料装置中邻近腔室的壁中的空腔具有进入室侧壁的一个开口并且包含可压缩气体充当气垫，并且在进料期间减小进料上的压力变化，因为气体可封闭在空腔内 通过进料通过室。
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5.发明授权
公开(公告)号：US3864843A
公开(公告)日：1975-02-11
申请号：US33970873
申请日：1973-03-09
Applicant: AGFA GEVAERT AG
Inventor： HERZHOFF PETER , GREF HANS , SCHWEICHER WOLFGANG , FRENKEN HANS , FRIEDSAM JOSEF , MEINHARDT GUNTER
CPC classification number: G01J5/0022 , G01K13/06 , G03C1/74 , G03D15/022
Abstract: In a wheel drier the temperature is continuously measured with a radiation pyrometer which is arranged in the rim of the drying wheel so that while the wheel rotates, the same surface element of the web always lies in the field of measurement of the pyrometer.
Abstract translation: 在轮式干燥器中，通过设置在干燥轮的边缘中的辐射高温计连续地测量温度，使得当轮旋转时，幅材的相同表面元件始终位于高温计的测量领域。
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6.发明授权
公开(公告)号：US3645773A
公开(公告)日：1972-02-29
申请号：US3645773D
申请日：1969-02-10
Applicant: AGFA GEVAERT AG
Inventor： HERZHOFF PETER , GREF HANS , SCHWEICHER WOLFGANG , WASSER WILLI , BROWATSKI KURT , FRIEDSAM JOSEF , MAUS FRITZ
CPC classification number: G03C1/74 , B05D1/26 , B05D3/0493 , B05D7/5385 , B05D2401/20 , B05D2451/00 , Y10S430/136
Abstract: A process for coating a viscous solution by a wetting process on a movable substrate. The coating solution is formed by a narrow gap between coating apparatus and the movable substrate so that the narrow gap is part of a coating chamber of the coating apparatus. The coating chamber is connected to a vacuum means at the side of the coating apparatus from which the substrate is introduced.
Abstract translation: 一种通过润湿方法在可移动基底上涂覆粘性溶液的方法。 涂布液由涂布装置和可动基板之间的窄间隙形成，使得窄间隙是涂布装置的涂布室的一部分。 涂布室与引入基板的涂布设备的一侧的真空装置连接。
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