摘要:
A photographic film curling correcting method and apparatus for correcting curling of a photographic film generated when the photographic film is stored for a long time in a cartridge in a state in which the photographic film is taken up around a spool shaft in a form of a roll, comprising the steps of: curvilinearly conveying the photographic film, which is withdrawn from the cartridge, so that the curling of the photographic film generated by taking up of the photographic film around the shaft becomes an opposite direction; and relaxing the curling by heating the photographic film while the photographic film is being curvilinearly conveyed, and taking up the photographic film, whose curling has been relaxed, into the cartridge again while cooling the photographic film. The curling of the photographic film can be corrected before developing processing when the photographic film is initially printed and before printing processing when the photographic film is printed a second time or times thereafter.
摘要:
The leader of a developed photographic film advanced from a cassette is transported to a curl quantity measuring unit. The curl quantity measuring unit measures, as the curl quantity, a height of the end of the film leader maintained free. In accordance with the obtained curl quantity, the temperature and heating time of a heating roller are controlled to straighten the curl. The developed photographic film with the curl straightened is transported to a print station at which an image within a frame to be printed is projected to a color paper while pushing the peripheral portion of the frame.
摘要:
The present invention discloses a restoration solution for cine film bubble and a restoration method. The restoration solution comprises 100 parts by volume of n-butanol, 60 to 120 parts by volume of lacquer thinner having 5% by mass of ethyl cellulose, 8 to 20 parts by volume of diphenyl isooctyl phosphite, 2 to 10 parts by volume of bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, and 2 to 15 parts by volume of petroleum ether. The present invention integrates micro-restoration, bubble puncture and optical filling, and effectively restores a bubble having a diameter of 0.1 mm to 1 mm generated between a film base layer and an emulsion layer of a cine film. The present invention has advantages of simple method of operation, low cost and good controllability. And the used restoration solution has good thermal stability, oxidation resistance, and permeability, and can eliminate the phenomenon of light scattering within the bubble, so that patterns and writing of the original image data are explicitly presented, and a better restoration effect is achieved without damages to films. Therefore, the restoration solution has good application values and market prospects.
摘要:
A sheet film curl correcting device so operative that it is closed towards the leading edge of a sheet film in association with the operation of a film inserting mechanism, immediately before said sheet film is inserted into a predetermined position of a film magazine, thereby to guide said film from both sides with a slight space therebetween, and is opened immediately after the leading edge of the film has been inserted into the magazine.
摘要:
An apparatus for transporting and/or decurling a strip of photosensitive material. The apparatus includes a plurality of rollers and a drum. A belt is wrapped about the plurality of rollers and are positioned such that the belt forms a receiving pocket for holding and retaining the drum and for rotating the drum about its axis. At least one of the plurality of rollers being connected to a drive mechanism so as to move the belt about the rollers so as to cause the drum to rotate about its axis of rotation. The belt is in direct contact with the outer surface of the drum for a predetermined distance about the circumference of the drum forming a first film path. The first film path has an entrance for receiving film and an exit for allowing film to leave the film path. A heater may be provided which is associated with the heating drum for heating the drum to a predetermined temperature.
摘要:
The present invention provides a method for removing the curl from a thermoplastic photographic film whereby it is made physically flat. The present invention is primarily concerned with controlling the curl of that form of microfilm known as microfiche which is described in the trade as a new form of microfilm in which a related group of images are arranged on a card shaped transparent sheet of film, generally measuring 4 X 6 inches and handled in an unmounted state. The present method comprises first heating the thermoplastic photographic film, passing the heated film over a cooled mandrel positioned on the side of the film opposite the direction of curl, and concomitantly cooling the film as it is pressed upon the mandrel.
摘要翻译:本发明提供一种从热塑性摄影胶片中去除卷曲的方法,由此使其成为物理上平坦的。 本发明主要涉及控制这种缩微胶片形式的卷曲,这种微缩胶片在商业上被描述为微缩胶卷的新形式,其中相关组的图像被布置在卡片状透明薄膜片上,通常测量 4 x 6英寸,处于未安装状态。 本发明的方法包括:首先加热热塑性照相胶片,使加热的膜通过位于与卷曲方向相反的薄膜一侧的冷却心轴上,同时冷却薄膜,当它被压在心轴上时。