Method for forming a direct positive image
    52.
    发明授权
    Method for forming a direct positive image 失效
    形成直接正像的方法

    公开(公告)号:US4996137A

    公开(公告)日:1991-02-26

    申请号:US541170

    申请日:1990-06-21

    IPC分类号: G03C1/035 G03C1/485

    CPC分类号: G03C1/48569

    摘要: A method for forming a direct positive image composed of the step of developing with a surface developer an imagewise exposed photosensitive material compose of support having thereon at least one photosensitive emulsion layer containing unprefogged silver halide grains capable of forming an internal latent image; the at least the photosensitive emulsion layer composed of hexagonal tabular silver halide grains in an amount of at least 30 wt %, based on the total silver amount of silver halide grains therein; the hexagonal tabular grains having two parallel hexagonal faces, the ratio of the longest side to the shortest side of the hexagon being at most 2; the aspect ratio of the hexagonal tabular grains being from 2 to 8; and the hexagonal tabular grains having a monodisperse size distribution. The method provides increases in processing speed, maximum density, and contrast in the toe portion, and an improvement in graininess, even when exhausted processing solutions are used.

    摘要翻译: 一种用于形成直接正像的方法,包括用表面显影剂显影的步骤,成像曝光的感光材料构成其上具有至少一个包含能够形成内部潜像的未反射的卤化银颗粒的感光乳剂层; 至少含有至少30重量%的六角形片状卤化银颗粒的感光乳剂层,基于其中的卤化银颗粒的总银量; 六边形片状颗粒具有两个平行的六边形面,六边形的最长边与最短边的比例至多为2; 六边形片状颗粒的纵横比为2至8; 和具有单分散尺寸分布的六边形片状颗粒。 该方法即使在使用耗尽的处理溶液时,也提高了脚趾部分的处理速度,最大密度和对比度的增加以及颗粒性的改善。

    Direct positive photographic materials and a method of forming direct
positive images
    54.
    发明授权
    Direct positive photographic materials and a method of forming direct positive images 失效
    直接的正性照相材料和形成直接正像的方法

    公开(公告)号:US4948712A

    公开(公告)日:1990-08-14

    申请号:US184552

    申请日:1988-06-07

    IPC分类号: G03C7/30

    摘要: The invention provides (1) direct positive photographic photosensitive materials in which at least one type of FR compound which releases fogging agent or development accelerator or a precursor thereof in accordance with the amount of silver developed when the silver halide is being developed is included in a direct positive photographic material comprising at least one layer of non-pre-fogged internal latent image type silver halide emulsion on a support, and (2) a method of forming direct positive images of which the distinguishing features are that in a method for the formation of direct positive images in which a direct positive photographic photosensitive material comprising at least one layer of non-pre-fogged internal latent image forming silver halide emulsion on a support is processed, after image exposure, in a surface developer, at least one type of FR compound which releases fogging agent or development accelerator or precursors thereof is included in the said photographic mateiral, and that the said photosensitive material is subjected to a fogging process and to a development process during and/or after the said fogging process.It is possible by means of this invention to obtain direct positive photographic materials which have excellent stability with respect to the passage of time and especially good stability with respect to the passage of time under conditions of high temperature and high humidity.Moreover, it is possible to obtain direct positive photographic materials and a method of forming direct positive images which have a high maximum image density and a high resolving power.Moreover, it is possible to obtain direct positive photographic materials and a method of forming direct positive images with which direct positive images which have a satisfactorily high color density can be obtained, even on processing in highly stable developers of low pH.

    Process for forming direct positive color image
    55.
    发明授权
    Process for forming direct positive color image 失效
    形成直接正彩色图像的过程

    公开(公告)号:US4933265A

    公开(公告)日:1990-06-12

    申请号:US317142

    申请日:1989-02-23

    摘要: A process for forming a direct positive color image is disclosed, the process comprising imagewise exposing a photosensitive material containing at least one emulsion layer of silver halide of internal latent image type, which has not been preliminarily fogged, and a color image-forming coupler; developing said material using a surface developing solution containing an aromatic primary amine color developing agent in the presence of a nucleating agent and/or in the condition that fogging exposure is carried out prior to the developing step or during the developing step; bleaching; and fixing, wherein said color coupler is a compound which is in itself substantially nondiffusible, and capable of forming or releasing a substantially nondiffusible dye upon oxidative coupling with said aromatic primary amine color developing agent and said development processing is carried out at a pH of 11.5 or less using a developing solution containing substantially no benzyl alcohol in the presence of at least one compound selected from the group consisting of the compounds represented by the general formula (I)A[(Y.sup.1).sub.n R].sub.m

    摘要翻译: 公开了一种用于形成直接正彩色图像的方法,该方法包括成像曝光含有至少一种尚未预先雾化的内部潜像型卤化银乳剂层的感光材料和彩色成像耦合器; 在成核剂存在下和/或在显影步骤之前或显影步骤中进行雾化曝光的条件下,使用含有芳族伯胺彩色显影剂的表面显影溶液显影所述材料; 漂; 和固定,其中所述着色剂是本身基本上不可扩散的化合物,并且能够在与所述芳族伯胺显色剂氧化偶联时形成或释放基本上不可扩散的染料,并且所述显影处理在pH为11.5的条件下进行 或更少使用在至少一种选自由通式(I)A [(Y1)nR] m表示的化合物组成的组的存在下,基本上不含苄醇的显影溶液

    EGR control device for internal combustion engine
    57.
    发明授权
    EGR control device for internal combustion engine 失效
    内燃机EGR控制装置

    公开(公告)号:US4790286A

    公开(公告)日:1988-12-13

    申请号:US126059

    申请日:1987-11-27

    IPC分类号: F02D21/08 F02M25/06

    摘要: An EGR device for an IC engine is disclosed which comprises an EGR control valve installed in an EGR passageway communicating with an exhaust system and an intake system of an internal combustion engine, an oxygen sensor for detecting the oxygen content of the intake air installed in the downstream of the opening of the EGR passageway in said intake system, a pressure sensor for detecting the atmospheric pressure in the oxygen sensor, and an EGR controller for computing a first quantity corresponding to a target exhaust gas reflux rate, correcting the output signal of the oxygen sensor using the output signal of the pressure sensor, and opening or shutting said EGR control valve in proportion to the deviation of the second quantity thus corrected from the first quantity in order to set the operating condition of the engine in conformity with a predetermined target EGR rate.

    摘要翻译: 公开了一种用于IC发动机的EGR装置,其包括安装在与排气系统连通的EGR通路中的EGR控制阀和内燃机的进气系统,用于检测安装在内燃机中的进气的氧含量的氧传感器 在所述进气系统中的EGR通道的开口的下游,用于检测氧传感器中的大气压的压力传感器和用于计算对应于目标废气回流速率的第一量的EGR控制器,校正所述氧气传感器的输出信号 氧传感器,其使用压力传感器的输出信号,并且与第一量的第二量的偏差成比例地打开或关闭所述EGR控制阀,以便将发动机的运行状态设定为与预定目标 EGR率。

    Method for forming direct positive color images
    58.
    发明授权
    Method for forming direct positive color images 失效
    形成直接正彩色图像的方法

    公开(公告)号:US4789627A

    公开(公告)日:1988-12-06

    申请号:US66049

    申请日:1987-06-23

    IPC分类号: G03C1/485 G03C7/30 G03C5/24

    CPC分类号: G03C7/3022 G03C1/48576

    摘要: In a method for forming a direct positive color image which comprises image-wise exposing to light a light-sensitive material comprising a support having provided thereon at least one photographic emulsion layer contaiing unfogged internal latent image type silver halide grains and a color image-forming coupler; developing the light-sensitive material with a surface developing solution containing an aromatic primary amine type color developing agent in the presence of a nucleating agent and/or fogging exposure; bleaching and fixing the resulting material to form the direct positive color image, the improvement is characterized in that the developing solution has a pH of 11.5 or less and does not substantially contain benzyl alcohol; the color coupler is a compound which forms or releases a substantially non-diffusive dye by oxidation coupling with a developing agent, and the internal latent image type silver halide grains have a particular core/shell structure.According to the method, a direct positive color image having a high maximum color density and a low minimum image density can be obtained in a short time.

    摘要翻译: 在用于形成直接正彩色图像的方法中,其包括以光学方式曝光的感光材料,所述感光材料包括其上提供有至少一个不含有无内部潜像型卤化银颗粒的照相乳剂层的支持体和彩色图像形成 耦合器 在成核剂和/或雾化曝光的存在下用含有芳族伯胺型彩色显影剂的表面显影液显影感光材料; 漂白和固定所得材料以形成直接正彩色图像,其改进的特征在于显影液的pH为11.5或更低,基本不含苄醇; 彩色成色剂是通过与显影剂氧化偶联形成或释放基本上非扩散性染料的化合物,并且内部潜像型卤化银颗粒具有特定的核/壳结构。 根据该方法,可以在短时间内获得具有高最大色彩浓度和低最小图像浓度的直接正彩色图像。

    Light-sensitive element for silver salt diffusion transfer with iodine
trapping layer
    59.
    发明授权
    Light-sensitive element for silver salt diffusion transfer with iodine trapping layer 失效
    用碘吸收层进行银盐扩散转移的光敏元件

    公开(公告)号:US4728596A

    公开(公告)日:1988-03-01

    申请号:US821354

    申请日:1986-01-22

    IPC分类号: G03C8/06 G03C5/54

    CPC分类号: G03C8/06

    摘要: A light-sensitive element for the silver salt diffusion transfer method is described, comprising a support bearing thereon at least a light-sensitive silver halide emulsion layer containing silver iodide, wherein at least one layer for trapping on iodide ion is provided between the support and the emulsion layer. This light-sensitive element provides a silver image which is improved in fading and discoloration during storage.

    摘要翻译: 描述了用于银盐扩散转移方法的感光元件,其包含至少含有碘化银的感光卤化银乳剂层的支撑体,其中在载体和载体之间提供至少一层用于捕获碘离子的层 乳剂层。 该感光元件提供银色图像,其在储存期间的褪色和变色被改善。

    Exhaust gas recirculation control system for an internal combustion
engine
    60.
    发明授权
    Exhaust gas recirculation control system for an internal combustion engine 失效
    内燃机排气再循环控制系统

    公开(公告)号:US4727849A

    公开(公告)日:1988-03-01

    申请号:US41422

    申请日:1987-04-23

    IPC分类号: F02M25/07 F02D21/08 F02M25/06

    摘要: An exhaust gas recirculation control system for an internal combustion engine comprises an exhaust gas recirculation control valve for controlling a recirculation rate for exhaust gas to be mixed with intake air which is supplied to the internal combustion engine, an oxygen sensor disposed in an intake air passage downstream of the control valve to detect the concentration of oxygen in the intake air, a control means which compares the oxygen concentration detected by the oxygen sensor with a desired oxygen concentration previously determined depending on operational conditions of the engine and controls the degree of opening of the exhaust gas recirculation control valve so as to cancel the deviation between the detected oxygen concentration and the desired oxygen concentration, a detecting means for detecting the exhaust gas recirculation rate being zero to supply a signal to the control means on the basis of the detection, and a correcting means for correcting the corresponding relation between the output of the oxygen sensor and the detected oxygen concentration on the basis of the output of the oxygen sensor when the exhaust gas recirculation rate is zero.

    摘要翻译: 一种用于内燃机的废气再循环控制系统包括排气再循环控制阀,用于控制与供给内燃机的进气混合的废气的再循环率;设置在进气通道中的氧传感器 在控制阀的下游检测进气中的氧气浓度;控制装置,其将氧传感器检测到的氧浓度与先前根据发动机的运行条件确定的期望氧浓度进行比较,并控制开启程度 废气再循环控制阀,以消除所检测的氧浓度与期望的氧浓度之间的偏差;检测装置,用于检测废气再循环率为零,以根据检测向控制装置提供信号; 以及用于校正相应关系的校正装置 基于氧气传感器的输出,当废气再循环率为零时,氧传感器的输出与检测到的氧浓度之间的关系。