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首页> 外国专利> Method of producing a pigmented image on a receiving surface by means of a surface having a photosensitive material and a pigment and pigmented etfeuille intended to the application in this process

Method of producing a pigmented image on a receiving surface by means of a surface having a photosensitive material and a pigment and pigmented etfeuille intended to the application in this process

机译：借助于具有光敏材料和颜料的表面以及在该方法中应用的着色的蛋白质在接收表面上产生着色图像的方法

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740,165. Diazotype transfer process. CHEMISCHE FABRIEK L. VAN DER GRINTEN N.V. Feb. 19, 1953 [April 1, 1952], No. 4700/53. Drawings to Specification. Class 98 (2). A process for the production of a pigment image on a receiving support comprises imagewise exposing a pigment sheet containing a light-sensitive diazo compound, azido-styrylketone or azido-styryl-aryl-azide, and pigment matter, said light-sensitive material being such that its adhesive power is altered on exposure to effect a difference in transferability of the pigment between exposed and non-exposed portions, pressing the exposed surface against the receiving surface in the presence of an aqueous liquid so that in the transferable portions pigment is transferred to the receiving surface, whilst in the non-transferable portions the pigment remains on the original sheet, and finally separating the surfaces. The transfer is affected by the presence of binders in the pigment sheet, the nature and amount of the transfer liquid, the receiving support and the temperature and pressure during transfer, and by varying these conditions, either positive or negative transfers can be obtained. Under certain conditions all the transferable pigment transfers and leaves a good remnant image on the original pigment sheet, whilst under other conditions only a portion of the transferable pigment transfers, and the process may be repeated to give a number of transfer images. Not all diazo-type compounds are suitable for the process of the invention and the suitability of a particular compound under given conditions is found by trial. Various constructions of pigment sheet are given. The support, which is preferably light pervious, may carry the light-sensitive layer and then the pigment layer, or it may carry the pigment layer and then the lightsensitive layer. In the latter case an intaglio surface may be provided on the support and the depressions filled with pigment, but in either case the support may first be covered with a sublayer before the pigment is applied. Such a sublayer may itself be light-sensitive so that the sheet may be exposed from either side, even if the pigment is impervious to light. In another form of pigment sheet the light-sensitive compound and pigment are mixed together and coated on a support. The pigment sheets can be double-sided if desired. It is preferred to use a binder in the light-sensitive layer such as gelatine, gum arabic, proteins, fish glue, agaragar, dextrin, casein, gum tragacanth, methyl cellulose, hydrophilic artificial resins and polyvinyl compounds, and such a binder is preferably hydrophilic. When the pigment is not mixed with the light-sensitive material binding agents such as Syrian asphalt, synthetic polymers and cellulose derivatives are preferably added. The pigment is preferably hydrophobic and porous to water. Suitable pigments are Heliogene Blue B, Lithor Echt-Scharlach R.N. Pulver, Crystal Violet, Hansa Yellow 10G, soot, carbon black, graphite, ochre, white lead, baryta, titanium dioxide and iron oxide. It is preferred to apply the pigment layer to a hydrophilic surface (either the support itself or a sublayer) such as partially or completely deacetylated cellulose acetate. The transfer liquid may be pure water or water containing acid, alkali, wetting-agents, alcohols or other liquids. It may be applied to either or both the pigment and receiving sheets, and the application of liquid and pressing the sheets together may be combined in one operation. A suitable apparatus is described for this purpose. The receiving support may be glossy book paper, transparent paper, films, textiles, glass, rubber or metal. Additional adhesives are of use in the transfer and these may be added to the transfer water or located on the transfer side of the pigment sheet or the receiving side of the receiving sheet as a layer which becomes adhesive on moistening. The pigment layer may be composed of two different pigment layers, the one turned towards the support of the pigment sheet contrasting visually with the receiving sheet, and the one turned away from the support of the pigment sheet contrasting visually with that support. The pigment layers are so coherent that on transfer both or neither are transferred to give different coloured transfer and remnant images. The invention may also be used for the production of multi-colour transfer images by transferring pigments of different colours from their respective pigment sheets in register on to one receiving sheet. The invention is illustrated by a large number of examples wherein both positive and negative transfer images are obtained. In one example a sheet of cellulose acetate has applied to one side a solution of diazoaldehyde (the condensation product of p-diazodiphenylamine and formaldehyde according to Example I of Specification 418,011), water and ethyl alcohol. The layer is dried and then overcoated with a composition comprising carbon black, asphalt, xylene and a 10 per cent solution of cellulose acetate butyrate in ethyl acetate and dried again. It was exposed for 30 seconds under an Indian ink line drawing on tracing paper and transferred to a sheet of transparent paper having a layer of gelatine on its receiving surface by immersing both sheets in water for a few seconds and then passing them together at a speed of 2.5 metres per minute through rollers under a lineal pressure of 2 kg. per cm. The transfer image is a transparent positive and the remnant image a transparent negative. The gelatine layer of the receiving support may contain chrome alum. In other examples the pigment layer is applied to paper or cellulose acetate sheet coated with gum arabic and then a layer of diazo aldehyde in gelatine is applied. In further examples the light-sensitive compound is 4-4SP1/SP-diazido-stilbene-disulphonic acid- 2-2SP1/SP, p-aminobenzene diazonium borofluoride, the chlorostannate of 4-4SP1/SP-tetrazodiphenylamine, p - ethylamino benzene diazonium chloride zinc chloride double salt, p-ethyl-#- hydroxyethyl amino benzene diazonium chloride double salt, p-ethyl-#-diethylaminoethyl-amino benzene diazonium chloride zinc chloride double salt, tin chloride double salt of the chloride of 4,4SP1/SP - tetrazo - 2 - 21 - 5 - 51 - tetramethoxy -triphenylmethane, p-cyclohexylamino benzene diazonilun chloride zinc chloride double salt and the sodium salt of 4-azido-#-acetyl styrene sul. phonic acid-2. Specifications 401,898, 510,233, 614,155, 645,211, 655,274, 655,275, 740,166 and U.S.A. Specification 1,618,505 also are referred to.
机译：740,165。重氮型转移过程。 CHEMISCHE FABRIEK L. VAN DER GRINTEN N.V.，1953年2月19日[1952年4月1日]，第4700/53号。图纸按规格。 98级（2）。在接收载体上产生颜料图像的方法包括将含有光敏重氮化合物，叠氮基-苯乙烯基酮或叠氮基-苯乙烯基-芳基-叠氮化物和颜料的颜料片成像曝光，所述光敏材料是这样的。其在暴露时改变其粘合力，从而影响暴露部分和未暴露部分之间颜料的可转移性差异，在存在水性液体的情况下将暴露表面压向接收表面，从而在可转移部分中将颜料转移到在接收表面上，颜料在不可转印部分中保留在原始纸张上，并最终将这些表面分开。转移受到颜料片中粘合剂的存在，转移液体的性质和量，接收载体以及转移过程中的温度和压力的影响，并且通过改变这些条件，可以获得正转移或负转移。在某些条件下，所有可转移的颜料都会转移并在原始颜料纸上留下良好的残留图像，而在其他条件下，只有一部分可转移的颜料会转移，并且可以重复此过程以提供许多转移图像。并非所有的重氮型化合物都适用于本发明的方法，并且通过试验发现了特定化合物在给定条件下的适用性。给出了颜料片的各种构造。优选地是透光的载体可以承载光敏层，然后承载颜料层，或者它可以承载颜料层，然后承载光敏层。在后一种情况下，可以在载体上提供凹版表面，并在凹陷处填充颜料，但是在任何一种情况下，在施加颜料之前，可以先用亚层覆盖载体。这样的子层本身可以是光敏的，从而即使颜料不透光，片材也可以从任一侧暴露。在颜料片的另一种形式中，将光敏化合物和颜料混合在一起并涂覆在载体上。如果需要，颜料片可以是双面的。优选在光敏层中使用粘合剂，例如明胶，阿拉伯树胶，蛋白质，鱼胶，琼脂糖，糊精，酪蛋白，黄芪胶，甲基纤维素，亲水性人造树脂和聚乙烯基化合物，并且这种粘合剂是优选的亲水的。当颜料不与诸如叙利亚沥青的光敏材料粘合剂混合时，优选添加合成聚合物和纤维素衍生物。颜料优选是疏水的并且对水是多孔的。合适的颜料是Heliogene Blue B，Lithor Echt-ScharlachR.N。粉末，结晶紫，Hansa Yellow 10G，烟灰，炭黑，石墨，石，白铅，重晶石，二氧化钛和氧化铁。优选将颜料层施加到亲水性表面（载体本身或子层）上，例如部分或完全脱乙酰的乙酸纤维素。转移液体可以是纯水或含有酸，碱，湿润剂，醇或其他液体的水。可以将其施加到颜料片和接收片中的任一个或两者上，并且可以将液体的施加和将片压在一起可以在一个操作中组合。为此目的描述了一种合适的设备。接收支撑物可以是光面书纸，透明纸，薄膜，纺织品，玻璃，橡胶或金属。附加的粘合剂可用于转移中，并且可以将它们添加到转移水中，或者作为在润湿时变为粘合剂的层而位于颜料片的转移侧或接收片的接收侧。颜料层可以由两层不同的颜料层组成，一层朝向颜料片的支撑物与接受片在视觉上形成对比，一层远离颜料片的支撑物与视觉上与形成支撑的形成对比。颜料层非常粘连，因此在转印时都不会转印或两者都不转印，从而产生不同的彩色转印和残留图像。通过将不同颜色的颜料从它们各自的颜料片上对准地转印到一个接收片上，本发明还可用于产生多色转印图像。通过大量的例子说明本发明，其中获得正和负转印图像。在一个实施例中，一片乙酸纤维素已将重氮醛（根据说明书418,011的实施例I的对重氮二苯胺和甲醛的缩合产物），水和乙醇的一侧施加。干燥该层，然后用包含炭黑，沥青的组合物覆盖，二甲苯和醋酸丁酸纤维素在乙酸乙酯中的10％溶液，然后再次干燥。将其在印度墨水线描图纸上在描图纸上作画30秒钟，然后将其浸入水中几秒钟，然后以一定速度通过，将其转移到在其接收表面上具有明胶层的透明纸上。在2 kg的线压下通过滚轴每分钟2.5米。每厘米转印图像是透明正片，剩余图像是透明负片。接收载体的明胶层可以包含铬明矾。在其他实例中，将颜料层施加到涂有阿拉伯胶的纸或乙酸纤维素片上，然后施加明胶中的重氮醛层。在进一步的例子中，光敏化合物是4-4 1 -二叠氮基-二苯乙烯-二磺酸-2-2 1 ，对氨基苯重氮硼氢化硼，氯锡酸盐4 -4 1 -四唑二苯胺，对-乙基氨基苯重氮氯化物氯化锌复盐，对乙基-＃-羟乙基氨基苯重氮氯化物复盐，对乙基-＃-二乙基氨基乙基-氨基苯重氮氯化物氯化锌复盐，4,4 1 -四唑-2-2-21-5-51-四甲氧基-三苯基甲烷，对环己基氨基苯重氮磺酰氯氯化锌复盐的氯化锡复盐和4-叠氮基-＃-乙酰基苯乙烯磺酸钠盐。膦酸2。规范401,898、510,233、614,155、645211、655,274、655,275、740,166和美国规范1,618,505。

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