摘要:
An ink-jet printing system comprising at least one ink-jet ink and a means for jetting an ink-jet ink onto a surface of a substantially non-absorbing ink-jet ink-receiver, characterized in that the ratio σ Sd/σ Ld of the dispersive surface energy of said ink-receiver surface a σ Sd over the dispersive surface energy of said ink-jet ink a σ Ld is greater than 0.9. A process for ink-jet printing is also claimed. High areal throughput ink-jet printing (e.g. >100 m2/hour) with curable inks can be performed on different kinds of ink-receiver surfaces with a good image quality and colour density due to a controlled spreading of the ink-drops which can be directly cured.
摘要翻译:一种喷墨打印系统,包括至少一个喷墨油墨和用于将喷墨油墨喷射到基本上不吸收的喷墨吸收器的表面上的装置,其特征在于,所述比率σ 所述接收器表面的分散表面能的一个或多个S SUB> S SUP> SUP> 超过所述喷墨油墨的色散表面能的比例大于0.9。 也要求喷墨打印的方法。 可固化油墨的高面积生产量喷墨打印(例如> 100m 2 /小时)可以在不同种类的油墨接收器表面上进行,具有良好的图像质量和颜色密度,由于受控的扩展 可以直接固化的墨滴。
摘要:
A photosensitive element which comprises on a support at least one photosensitive silver halide emulsion layer and at least a non-light sensitive layer, wherein the silver halide emulsion layer comprises a chalcogenic compound satisfying formula (1): ##STR1## wherein: X represents Se or Te, forming a double bond with its neighbouring C-atom,Nu represents a nucleophilic group which brings an electron pair in heterolytic bond formation; Nu has a pK.sub.a -value of at least 2.0 if Nu is an acidic group,L represents a divalent linking group representing each group which can position an electron donating atom in any of the 5th to the 8th position vis-a-vis the carbon atom of the carbon-chalcogen double bond,AQB represents the necessary atoms to form a heterocyclic 5- or 6-membered ring, provided that when A is a Nitrogen-atom, B is an atom selected from the group consisting of NR.sup.1, O, S, Se and Te,R.sup.1 can represent a hydrogen, an alkyl group, an acyl-group, an aryl group, an aralkyl group or a heteroaryl group;and a method wherein said chalcogenic compound is used during the step of chemically sensitizing at least one of the said silver halide emulsions at a pH-value situated between 3 and 10, a pAg-value situated between 6 and 11 and a temperature in the range of from 40.degree. C. up to 95.degree. C.
摘要:
A photosensitive element is disclosed comprising on at least one side of a support one or more silver halide emulsion layers and a non-light sensitive hydrophilic colloidal layer characterized in that at least one emulsion layer comprises silver halide crystals having an oligomeric platinum complex containing only carbonyl ligands, which is represented by formula (1):[Pt.sub.3 (CO).sub.6 ].sub.n.sup.2- (1)wherein n is not more than 10.The invention also provides a method for the preparation of a photosensitive element as described hereinbefore comprising the step of introducing the oligomeric platinum carbonyl containing complex as represented by formula (1) during grain formation in at least one silver halide emulsion.
摘要:
The present invention provides a method for obtaining an imaging element suitable for use in a silver salt diffusion transfer process comprising the steps of coating a support with a layer comprising physical development nuclei and a photosensitive layer comprising a photosensitive silver halide emulsion, said photosensitive layer being in water permeable relationship with said image receiving layer, characterized in that said physical development nuclei consist of a substantially homogeneous solid solution of two or more different metals and are prepared by pulsed high flux radiolysis. According to the invention there is further provided a method for making a lithographic printing plate comprising the steps of image-wise exposing an imaging element prepared as defined above and subsequently developing a thus obtained image-wise exposed imaging element by means of an alkaline processing solution in the presence of a developing agent and a silver halide solvent.