摘要:
In a method of producing a photosensitive planographic printing plate according to the present invention, a web is coated with a coating solution, and a coating solution film thus formed is rapidly dried. For this drying, fresh air is blown onto the web W heated with a heat roll such that the air is blown parallel to the coating solution film. The coating solution film can thereby be prevented from changing its thickness due to an air stream during drying, while the coating solution film can be rapidly dried. Accordingly, the coating solution film can be dried before the film is leveled, to form a coating layer having uniform thickness.
摘要:
In a method of producing a photosensitive planographic printing plate according to the present invention, a web is coated with a coating solution, and a coating solution film thus formed is rapidly dried. For this drying, fresh air is blown onto the web W heated with a heat roll such that the air is blown parallel to the coating solution film. The coating solution film can thereby be prevented from changing its thickness due to an air stream during drying, while the coating solution film can be rapidly dried. Accordingly, the coating solution film can be dried before the film is leveled, to form a coating layer having uniform thickness.
摘要:
In a method of producing a photosensitive planographic printing plate according to the present invention, a web is coated with a coating solution, and a coating solution film thus formed is rapidly dried. For this drying, fresh air is blown onto the web W heated with a heat roll such that the air is blown parallel to the coating solution film. The coating solution film can thereby be prevented from changing its thickness due to an air stream during drying, while the coating solution film can be rapidly dried. Accordingly, the coating solution film can be dried before the film is leveled, to form a coating layer having uniform thickness.
摘要:
In a method of producing a photosensitive planographic printing plate according to the present invention, a web is coated with a coating solution, and a coating solution film thus formed is rapidly dried. For this drying, fresh air is blown onto the web W heated with a heat roll such that the air is blown parallel to the coating solution film. The coating solution film can thereby be prevented from changing its thickness due to an air stream during drying, while the coating solution film can be rapidly dried. Accordingly, the coating solution film can be dried before the film is leveled, to form a coating layer having uniform thickness.
摘要:
A lithographic printing plate precursor having a good press life with a practical energy amount, which can be on-press developed without passing through a development processing step after recording an image by a laser of emitting an infrared ray, is provided, which is a lithographic printing plate precursor capable of performing a development and printing by loading on a printing press after imagewise exposure and supplying an oily ink and an aqueous component, the lithographic printing plate precursor comprising a support and an image recording layer, wherein the image recording layer comprises (A) a polymerization initiator, (B) a polymerizable monomer, (C) a binder polymer, and (D) a crosslinked resin particle having a reactive group or (F) a microcapsule containing a polymerizable monomer in the capsule wall, and the image recording layer is imagewise polymerization-curable upon irradiation of actinic ray.
摘要:
A positive planographic printing plate precursor includes a support having disposed thereon a lower thermosensitive layer containing a water-insoluble but alkali-soluble polymer compound and an upper thermosensitive layer containing a water-insoluble but alkali-soluble polymer compound, with alkali-solubility increasing under heat, wherein (i) both the upper thermosensitive layer and the lower thermosensitive layer contain an IR absorbing dye, with the ratio of the IR absorbing dye concentration in the upper thermosensitive layer to the IR absorbing dye concentration in the lower thermosensitive layer is 1.6 to 10.0, and/or (ii) the upper thermosensitive layer and the lower thermosensitive layer contain different IR absorbing dyes, and/or (iii) at least one of the upper thermosensitive layer and the lower thermosensitive layer contains an IR absorbent having, in one molecule, at least two chromophoric groups that absorb IR light, with the chromophoric groups bonding to each other via a covalent bond.
摘要:
A lithographic printing plate precursor comprises: a support; and an image recording layer that contains image forming particles and a non-water-soluble binder, the non-water-soluble binder interacting with the surface of the image forming particles. A lithographic printing plate precursor comprises: a support; and an image recording layer that contains a polymer binder and particles, wherein the particles are microcapsules having a polymerizable functional group as a wall material.
摘要:
A thermosensitive lithographic printing plate comprising: a hydrophilic support; a lower layer comprising a water-insoluble and alkali-soluble resin; and an upper thermosensitive layer comprising a water-insoluble and alkali-soluble resin and an infrared absorbing dye, whose dissolution in an alkaline aqueous solution increases upon exposure, wherein a surface of the upper thermosensitive layer has protrusions caused by ununiformity of thickness of the upper thermosensitive layer in a proportion of 0.1 or more and not more than 7 per μm2 or the upper thermosensitive layer comprises at least two alkali-soluble resins having a different dissolution speed in an alkaline aqueous solution from each other, and the at least two alkali-soluble resin cause phase separation from each other.
摘要翻译:一种热敏平版印刷版,包括:亲水载体; 包含水不溶性和碱溶性树脂的下层; 以及包含水不溶性和碱溶性树脂和红外吸收染料的上部热敏层,其在碱性水溶液中的溶解在曝光时增加,其中上部热敏层的表面具有由上部的热塑性树脂的厚度不均匀引起的突起 热敏层的比例为0.1以上且不超过7个/ m 2或上部热敏层包含至少两种在碱性水溶液中彼此溶解速度不同的碱溶性树脂 ,并且所述至少两种碱溶性树脂引起相分离。
摘要:
A lithographic printing plate precursor comprising a hydrophilic support, an alkali-soluble layer and provided on the alkali-soluble layer a recording layer which contains an infrared ray absorbent, an alkali-soluble resin and an inhibitor of inhibiting the alkali-soluble resin from dissolving in an alkali aqueous developer and increases in the solubility in an alkaline aqueous solution upon irradiation of infrared light, and a developing method of the lithographic printing plate precursor with a non-silicate developer.
摘要:
A positive working lithographic printing plate precursor comprising a lower layer containing a water-insoluble and alkali-soluble resin, and an upper heat-sensitive layer containing a water-insoluble and alkali-soluble resin and an infrared absorbing dye and increasing the solubility in an alkaline aqueous solution by heating, provided in this order on a hydrophilic support, and (a) the upper heat-sensitive layer containing at least two kinds of surface active agents, or (b) the lower layer and upper heat-sensitive layer each containing a surface active agent different from each other.