Silver halide photographic material exhibiting increased covering power and “colder” blue-black image tone
    2.
    发明授权
    Silver halide photographic material exhibiting increased covering power and “colder” blue-black image tone 失效
    卤化银照相材料表现出增加的覆盖力和“较冷”的蓝黑色图像色调

    公开(公告)号:US06342338B1

    公开(公告)日:2002-01-29

    申请号:US09710838

    申请日:2000-11-14

    IPC分类号: G03C135

    摘要: A black-and-white silver halide photographic film material, particularly suitable for use in radiography, has been disclosed, said material comprising a transparent film support having first and second major surfaces coated with a subbing layer, further coated adjacent thereto on one side (for a single-side coated material) or on both sides (for a duplitized material) of said film support and overcoated with a protective antistress layer, a light-sensitive silver halide emulsion layer having chemically and spectrally sensitized {111} tabular hexagonal grains, accounting for at least 50% of the total projective surface of all grains, wherein said film material is coated with a low amount of silver and wherein said protective antistress layer(s)and/or another hydrophilic non-light-sensitive layer comprise(s) a compound according to general formula (I) in an amount of at least 0.5 mmole per mole of coated silver halide, as claimed. A radiographic screen/film combination has also been disclosed, said combination comprising a duplitized film as described herein sandwiched between a pair of supported or self-supporting X-ray intensifying screens emitting radiation in the wavelength range for which said material has been made spectrally sensitive in order to obtain a black-and-white image after exposure of said screen/film combination, followed by processing of the film material.

    摘要翻译: 已经公开了特别适合用于放射照相术的黑白卤化银照相胶片材料,所述材料包括透明膜支撑体,所述透明膜支撑体具有涂覆有底层的第一和第二主表面,其一侧进一步涂覆在其上 对于单面涂层材料)或在所述膜支撑体的两侧(用于双面照射材料)并用保护性抗阻层覆盖,具有化学和光谱增感{111}片状六边形晶粒的感光卤化银乳剂层, 占所有颗粒的总投影表面的至少50%,其中所述膜材料涂覆有少量的银,并且其中所述保护抗静电层和/或另一亲水性非感光层包含(s )根据通式(I)的化合物,其量为每摩尔涂覆的卤化银至少为0.5毫摩尔,如所要求保护的.A射线照相屏/膜组合也已经被 所述组合包括如本文所述的双面胶片夹在一对支撑的或自支撑的X射线增强屏幕之间,所述X射线增强屏幕在所述材料已被制成光谱敏感的波长范围内发射辐射,以获得黑 - 所述屏幕/胶片组合曝光后的白色图像,随后加工薄膜材料。

    Method of hardener-free processing of a forehardened silver halide
photographic material
    3.
    发明授权
    Method of hardener-free processing of a forehardened silver halide photographic material 失效
    未硬化卤化银照相材料的无硬化处理方法

    公开(公告)号:US5795704A

    公开(公告)日:1998-08-18

    申请号:US752521

    申请日:1996-11-20

    摘要: A method is disclosed of hardener-free processing a forehardened silver halide photographic material comprising a film support and on one or both sides thereof at least one silver halide emulsion layer characterized in that (1) each silver halide emulsion layer comprises spectrally sensitized cubic silver chloride or silver bromochloride grains having not more than 25 mole % of bromide in a total amount of coated silver expressed as the equivalent amount of silver nitrate in the range of from 2.5 to 4 g/m.sup.2 ; (2) the forehardened material has a water absorption of less than 4 grams per gram of gelatin, wherein said water absorption has been determined by making the difference by weight of the material when dry and when having been dipped in demineralized water of 25.degree. C. during 3 minutes followed by squeezing off the superficial water; (3) hardener-free processing includes development with a developing solution comprising thiocyanate ions in amounts from 10.sup.-3 up to 10.sup.-2 molar.

    摘要翻译: 公开了一种无硬化处理包含薄膜载体的预硬化卤化银照相材料的方法,其一面或两面上至少有一个卤化银乳剂层,其特征在于:(1)每个卤化银乳剂层包含光谱增感的立方氯化银 或溴化银的银含量不超过25摩尔%的溴化银,其总量为以2.5至4克/米2的硝酸银表示; (2)预硬化材料每克明胶的吸水量小于4克,其中所述吸水性是通过在干燥时使材料的重量差异和当浸入25℃的软化水中时确定的 在3分钟内,然后挤压出浅水; (3)无固化剂处理包括用含有10-3至10-2摩尔的硫氰酸根离子的显影溶液进行显影。

    Method for developing an exposed photographic silver halide material
    4.
    发明授权
    Method for developing an exposed photographic silver halide material 失效
    用于显影曝光的照相卤化银材料的方法

    公开(公告)号:US06379877B1

    公开(公告)日:2002-04-30

    申请号:US08594721

    申请日:1996-01-31

    IPC分类号: G03C530

    CPC分类号: G03C5/383 G03C5/30 G03C8/365

    摘要: According to this invention a developer has been disclosed having a low pH value between 9.6 and 11.0, preferably between 9.6 and 10.3, and comprising hydroquinone in an amount from 0 to less than 30 g per liter, an auxiliary developing agent, and as silver halide complexing agents alkali metal sulphite salts, preferably sodium salts, in an amount from 0 to less than 50 g per liter, more preferably to less than 40 g per liter, and thiocyanate salts in amounts from 0.1 to 3 g, more preferably from 0.5 to 2.5 g per liter, and at least 1 g of a compound corresponding to the formula (I), a precursor thereof, a derivative thereof and/or a metal salt thereof wherein each of A, B and D independently represents an oxygen atom or NR1; X represents an oxygen atom, a sulphur atom, NR2; CR3R4; C═O; C═NR5 or C═S; Y represents an oxygen atom, a sulphur atom, NR′2; CR′3R′4; C═O; C═NR′5 or C═S; Z represents an oxygen atom, a sulphur atom, NR″2; CR″3R″4; C═O; C═NR″5 or C═S; n equals 0, 1 or 2; each of R1 to R5, R′1 to R′5 and R″1 to R″5, independently represents hydrogen, subsituted or unsubstituted alkyl, aralkyl, hydroxyalkyl, carboxyalkyl; substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted cycloalkenyl, substituted or unsubstituted aryl or substituted or unsubstituted heterocyclyl; and wherein R3 and R4, R′3 and R′4, R″3 and R″4, may further form together a ring; and wherein in the case that X═CR3R4 and Y═CR′3R′4, R3 and R′3 and/or R4 and R′4 may form a ring and wherein in the case that Y═CR′3R′4 and Z═CR″3R″4 with n=1 or 2, R′3 and R″3 and/or R′4 and R″4 may form a ring.

    摘要翻译: 根据本发明,已经公开了具有9.6至11.0之间的低pH值,优选9.6至10.3的显影剂,并且包含量为0至小于30g /升的氢醌,辅助显影剂和卤化银 络合剂碱金属亚硫酸盐,优选钠盐,其量为0至小于50克/升,更优选至少于40克/升,硫氰酸盐的量为0.1至3克,更优选为0.5至 2.5g /升,和至少1g对应于式(I)的化合物,其前体,其衍生物和/或其金属盐,其中A,B和D的独立地表示氧原子或NR 1; X 表示氧原子,硫原子,NR 2; CR3R4; C = O; C = NR5或C = S; Y表示氧原子,硫原子,NR'2; CR'3R'4; C = O; C = NR'5或C = S; Z表示氧原子,硫原子,NR'2; CR''3R''4; C = O; C = NR''5或C = S; n等于0,1或2; R1至R5,R'1至R'5和R'1至R'5各自独立地表示氢,取代或未取代的 烷基,芳烷基,羟基烷基,羧基烷基; 取代或未取代的烯基,取代或未取代的炔基,取代或未取代的环烷基,取代或未取代的环烯基,取代或未取代的芳基或取代或未取代的杂环基; 并且其中R 3和R 4,R'3和R'4,R“3和R”4可进一步一起形成环; 并且在X = CR 3 R 4和Y = CR 3 R 4的情况下,R 3和R'3和/或R 4和R'4可以形成环,并且其中在Y = CR'3R'4和Z = 具有n = 1或2的CR''3R''4,R'3和R'3和/或R'4和R'4可以形成环。

    Radiographic film material exhibiting increased covering power and “colder” blue-black image tone
    5.
    发明授权
    Radiographic film material exhibiting increased covering power and “colder” blue-black image tone 失效
    显示增加覆盖力和“较冷”的蓝黑色图像色调的放射照相胶片材料

    公开(公告)号:US06348293B1

    公开(公告)日:2002-02-19

    申请号:US09715020

    申请日:2000-11-20

    IPC分类号: G03C1035

    摘要: A radiographic film material is described including a transparent film support having first and second major surfaces coated with a subbing layer, optionally overcoated with an antihalation undercoat. Coated adjacent on each side of the film support is a light-sensitive silver halide emulsion overcoated with a protective antistress layer. The emulsion layer has chemically and spectrally sensitized {111} tabular hexagonal grains or crystals, having silver iodide in an amount of at most 3 mole %, based on silver, covering at least 50% of the total projective surface of all grains, having an average grain thickness of less than 0.30 &mgr;m. The antistress layer, or the optional antihalation undercoat or both includes a N-amino mercapto-triazole compound containing one or more alkali soluble group(s). A radiographic screen/film combination is also described including the film material.

    摘要翻译: 描述了一种射线照相胶片材料,其包括具有涂覆有底层的第一和第二主表面的透明膜载体,任选地用防晕晕底涂层涂覆。 在膜载体的每一侧上涂覆相邻的是具有保护性抗静电层的感光卤化银乳剂。 乳剂层具有化学和光谱增感的{111}平板状六边形晶粒或晶体,其银以银计最多为3摩尔%的碘化银,覆盖所有晶粒的总投影表面的至少50%,其具有 平均颗粒厚度小于0.30μm。 防静电层或任选的防晕底漆或二者均包括含有一个或多个碱溶性基团的N-氨基巯基 - 三唑化合物。 还描述了包括膜材料的射线照相屏/膜组合。

    Preparation method of regular silver halide light-sensitive emulsions
comprising silver halide crystals rich in chloride and material
comprising said emulsions
    6.
    发明授权
    Preparation method of regular silver halide light-sensitive emulsions comprising silver halide crystals rich in chloride and material comprising said emulsions 失效
    包含含有氯化物的卤化银晶体和包含所述乳液的材料的常规卤化银感光乳剂的制备方法

    公开(公告)号:US5543284A

    公开(公告)日:1996-08-06

    申请号:US417953

    申请日:1995-04-06

    申请人: Ann Verbeeck

    发明人: Ann Verbeeck

    CPC分类号: G03C1/04 G03C1/015 G03C1/07

    摘要: A method is disclosed to prepare a photographic light-sensitive silver halide emulsion, containing regular silver halide crystals rich in chloride having a predictable size distribution and wherein said method comprises the steps of precipitating silver halide crystals rich in chloride by means of the double-jet or triple-jet technique in colloidal silica having a particle size from 0.003 .mu.m to 0.30 .mu.m as a protective colloid in the absence of any polymeric compound(s) capable of forming hydrogen bridges with colloidal silica, but always in the presence of an onium compound, wherein the ratio by weight of said colloidal silica to the said onium compound(s) is between 3 and 75; controlling the nucleation and growth steps by means of variable flow rate(s) of the aqueous solutions of silver nitrate and chloride containing salts, and/or by means of constant pAg-values during said steps in the vessel in order to determine the number of nuclei quantitatively in the nucleation step and to avoid renucleation in the growth step, and wherein at every moment the total amount of monovalent ions of the electrolyte present during both steps is less than 1.0 molar; desalting the reaction medium and redispersing the silver halide, chemically ripening the silver halide crystals rich in chloride and adjusting the ratio by weight of the colloidal silica sol to the amount of silver halide, expressed as the equivalent amount of silver nitrate to a value of at least 0.03 at every moment throughout the precipitation stage.

    摘要翻译: 公开了一种制备照相感光卤化银乳剂的方法,其含有具有可预测尺寸分布的富含氯化物的规则卤化银晶体,并且其中所述方法包括通过双喷射沉淀富含氯化物的卤化银晶体 或三次喷射技术在胶态二氧化硅中的粒径为0.003μm至0.30μm作为保护胶体,在不存在能够用胶体二氧化硅形成氢桥的任何聚合物的情况下,但总是存在 鎓化合物,其中所述胶体二氧化硅与所述鎓化合物的重量比在3和75之间; 通过硝酸银和含氯化物盐的水溶液的可变流速和/或通过在容器中的所述步骤期间的恒定的pAg值来控制成核和生长步骤,以确定 在成核步骤中定量地确定核,并避免生长步骤中的脱核,并且其中在两个步骤中存在的电解液中的每一时刻的总量的电荷量小于1.0摩尔; 脱盐反应介质并重新分散卤化银,化学成熟富含氯化物的卤化银晶体,并将胶体二氧化硅溶胶的重量比与卤化银的用量(以等于硝酸银的当量计)表示为 在整个降水阶段的每一刻都至少要0.03。

    Process for the preparation of a hybrid direct positive emulsion and
photographic material containing such an emulsion
    7.
    发明授权
    Process for the preparation of a hybrid direct positive emulsion and photographic material containing such an emulsion 失效
    用于制备混合直接阳性乳液和含有这种乳液的照相材料的方法

    公开(公告)号:US5498517A

    公开(公告)日:1996-03-12

    申请号:US315449

    申请日:1994-09-30

    摘要: A process is disclosed for the preparation of a hybrid direct positive silver halide emulsion comprising the steps of (1) forming an essentially cubic host grain emulsion consisting of silver bromide or silver iodobromide, with a iodide content between 0 and 10 mole %, by a balanced double jet, (2) depositing epitaxially on the corners of said formed essentially cubic host grains a silver iodide crystallographic phase wherein said silver iodide phase contains at most 5 % of the total crystal silver halide, either by precipitating a silver chloride epitaxial phase and converting it to silver iodide, or by adding silver ions and an organic iodide releaser.The organic iodide releaser is preferably mono-iodoacetic acid.

    摘要翻译: 公开了一种用于制备混合直接正卤化银乳剂的方法,包括以下步骤:(1)通过以下步骤形成由碘化银含量为0至10摩尔%的溴化银或碘溴化银组成的基本上立方体的主体颗粒乳剂 (2)在所形成的基本上立方的主体颗粒的角上外延沉积碘化银结晶相,其中所述碘化银相含有总结晶卤化银的至多5%,通过沉淀氯化银外延相和 将其转化为碘化银,或加入银离子和有机碘化物释放剂。 有机碘化物释放剂优选为单碘代乙酸。

    Light-sensitive silver halide photographic film material and radiographic intensifying screen-film combination
    8.
    发明授权
    Light-sensitive silver halide photographic film material and radiographic intensifying screen-film combination 有权
    感光卤化银照相胶片材料和放射照相增强屏幕膜组合

    公开(公告)号:US06472137B1

    公开(公告)日:2002-10-29

    申请号:US09709628

    申请日:2000-11-13

    IPC分类号: G03C1005

    摘要: A light-sensitive silver halide photographic film material has been provided, said film material comprising a transparent support and on both sides thereof at least one light-sensitive emulsion layer having spectrally and chemically sensitized tabular silver halide grains rich in silver bromide, further having silver iodide in an amount of less than 3 mole % based on silver, with two flat parallel {111} crystal faces, said grains accounting for a total projective surface of said parallel crystal faces in said emulsion of at least 50%, further having an average aspect ratio of at least 2:1, a grain thickness of from 0.05 up to 0.15 &mgr;m, a site-directing azacyanine compound satisfying the general formulae disclosed herein in an amount of not less than 1×10−4 mole per mole of silver halide coated and one or more J-aggregating spectrally sensitizing dye(s), wherein a molar ratio amount between said site directing compound and said J-aggregating spectrally sensitizing dye(s) is at least 1:6 for a grain coverage of said {111} tabular grains exceeding 50%. A radiographic screen/film combination has also been described comprising said light-sensitive silver halide photographic film material and two supporting or self-supporting X-ray intensifying screens) comprising luminescent phosphors, wherein by contacting the film material with a sandwich of a pair of said intensifying screens and exposing said combination to X-rays, emission of radiation by said luminescent phosphors in the wavelength range for which said material has been made spectrally sensitive provides a black-and-white diagnostic image after processing of said exposed radiographic film material.

    摘要翻译: 已经提供了感光卤化银照相胶片材料,所述胶片材料包括透明支撑体,并且在其两侧上具有至少一个感光乳剂层,其具有富含溴化银的光谱和化学增感的片状卤化银颗粒,还具有银 碘化物的量小于3摩尔%,具有两个平的平行{111}晶面,所述颗粒占所述乳液中所述平行晶面的总投影面至少为50%,进一步具有平均 纵横比为至少2:1,晶粒厚度为0.05至0.15μm,位置引导的氮杂菁化合物,其满足本文公开的通式,其用量为每摩尔卤化银涂层不小于1×10 -4摩尔, 一种或多种J聚集光谱增感染料,其中所述位点引导化合物和所述J-聚集光谱增感染料之间的摩尔比为至少1:6 所述{111}片状晶粒的晶粒覆盖率超过50%。还描述了包括所述感光卤化银照相胶片材料和两种支撑或自支撑X射线增强屏幕的放射照相屏/膜组合,其包含发光 荧光体,其中通过使膜材料与一对所述增强屏幕的夹层接触并将所述组合暴露于X射线,所述发光荧光体在所述材料已经被制成光谱敏感的波长范围内的发射由黑色 处理所述暴露的放射线照相胶片材料之后的白色诊断图像。

    Radiographic UV/blue intensifying screen-film combination
    9.
    发明授权
    Radiographic UV/blue intensifying screen-film combination 失效
    射线照相UV /蓝色增强屏幕膜组合

    公开(公告)号:US5989799A

    公开(公告)日:1999-11-23

    申请号:US99325

    申请日:1998-06-18

    摘要: A radiographic screen/film combination or system has been provided comprising a duplitized film sandwiched between a pair of supporting or self-supporting X-ray intensifying screens, characterized in that i) said pair of supported or self-supporting X-ray intensifying screens essentially consists of luminescent phosphor particles emitting at least 50% and more preferably at least 80% of their emitted radiation in the wavelength range shorter than 380 nm, as e.g. a niobium and gadolinium doped, monoclinic M, yttriumtantalate (MYT) phosphor corresponding to formula IYTaO.sub.4 :Gd:Nb (I),ii) said film comprises {111} tabular silver halide grains rich in silver chloride, spectrally sensitive to irradiation in the said wavelength range shorter than 380 nm by the presence of at least one azacyanine dye as a spectral sensitizer.

    摘要翻译: 已经提供了包括夹在一对支撑或自支撑X射线增强屏之间的双面胶片的射线照相屏/膜组合或系统,其特征在于i)所述一对支撑或自支撑X射线增强屏本质上 由发射荧光体颗粒的发射波长范围小于380nm的发射辐射的至少50%,更优选至少80%,例如 对应于式IYTaO4:Gd:Nb(I)的铌和钆掺杂的单斜晶M,钇钽酸盐(MYT)荧光体,ii)所述薄膜包含富含氯化银的{111}片状卤化银颗粒,对所述 通过存在至少一种氮杂菁染料作为光谱增感剂,波长范围短于380nm。

    Processing of a light-sensitive silver halide photographic material
    10.
    发明授权
    Processing of a light-sensitive silver halide photographic material 失效
    感光卤化银照相材料的加工

    公开(公告)号:US5912108A

    公开(公告)日:1999-06-15

    申请号:US991345

    申请日:1997-12-16

    摘要: A method has been disclosed of processing an image-wise exposed light-sensitive black-and-white silver halide photographic material comprising a support coated on one or both sides thereof with hydrophilic layers, wherein at least one of said layers comprises one or more emulsions having tabular silver halide crystals rich in silver chloride, said method comprising the steps of developing, fixing, rinsing and drying, further characterized in that said developing step proceeds in a black-and-white developer comprising one or more organic compounds inhibiting development, more preferably one or more benzotriazole compounds, and in that said developer is substantially free from bromide ions in favor of a low fog level, a high speed and a sufficiently high covering power of the developed tabular grains.

    摘要翻译: 已经公开了一种处理图像曝光的感光黑白卤化银照相材料的方法,其包括在其一侧或两侧上涂覆有亲水层的载体,其中所述层中的至少一层包含一种或多种乳液 具有富含氯化银的片状卤化银晶体,所述方法包括显影,定影,漂洗和干燥的步骤,其特征还在于所述显影步骤在包含一种或多种抑制显影的有机化合物的黑白显影剂中进行,更多 优选一种或多种苯并三唑化合物,并且所述显影剂基本上不含溴离子,有利于显影的片状颗粒的低雾度,高速度和足够高的覆盖力。