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    • 1. 发明授权
    • Preparation of photopolymeric letterpress printing plates
    • 光聚合凸版印刷版的制备
    • US06194125B1
    • 2001-02-27
    • US09334178
    • 1999-06-16
    • Friedrich GoffingThomas LoerzerHartmut SandigMarkus Tönnessen
    • Friedrich GoffingThomas LoerzerHartmut SandigMarkus Tönnessen
    • G03F7095
    • G03F7/202Y10S430/145
    • Photopolymeric letterpress printing plates which are to be developed with water or water/alcohol mixtures after imagewise exposure and have, arranged one on top of the other on a dimensionally stable substrate, a layer (A) which may be bonded to the dimensionally stable substrate by an adhesion-promoting layer and is crosslinkable by actinic radiation, a layer (B) which is sensitive to IR radiation and, if required, a parting layer arranged between layer (A) and layer (B), and a peelable protective film applied to the layer (B), are produced by a process in which the layer (A) contains a mixture of at least one polymeric binder which is soluble or dispersible in water or water/alcohol mixtures, copolymerizable ethylenically unsaturated organic compounds which are compatible with the polymeric binder and a photoinitiator, the layer (B) sensitive to IR radiation has an optical density ≧2.5 in the actinic range and contains a film-forming polymeric binder which is soluble or dispersible in water or water/alcohol mixtures and a substance which is finely distributed in this binder and absorbs IR radiation, and the layer (B) sensitive to IR radiation is structured by laser ablation and is then exposed uniformly to actinic radiation, developed and dried in a conventional manner. The novel process is suitable for the production of letterpress printing plates.
    • 在成像曝光后要用水或水/醇混合物显影的光聚合物凸版印刷版,并且在尺寸稳定的基材上排列成一层,其可以通过以下方式结合到尺寸稳定的基材上:(A) 粘合促进层,通过光化辐射可交联,对IR辐射敏感的层(B),如果需要,布置在层(A)和层(B)之间的分离层)和可剥离的保护膜施加到 层(B)通过其中层(A)含有可溶于或可分散在水或水/醇混合物中的至少一种聚合物粘合剂的混合物的方法制备,可共聚的烯属不饱和有机化合物与 聚合物粘合剂和光引发剂,对IR辐射敏感的层(B)在光化范围内的光密度> = 2.5,并且含有可溶或可分散的成膜聚合物粘合剂 在水或水/醇混合物中和精细分布在该粘合剂中并吸收IR辐射的物质,并且对IR辐射敏感的层(B)通过激光烧蚀构成,然后均匀地暴露于光化辐射,显影和干燥 常规方法。新工艺适用于生产凸版印刷版。
    • 5. 发明授权
    • Preparation of photopolymeric gravure printing plates
    • 光聚合凹版印刷板的制备
    • US06190832B1
    • 2001-02-20
    • US09181458
    • 1998-10-28
    • Friedrich GoffingThomas LoerzerHartmut SandigMarkus Tönnessen
    • Friedrich GoffingThomas LoerzerHartmut SandigMarkus Tönnessen
    • G03F100
    • G03F7/202Y10S430/145
    • Photopolymeric gravure printing plates which are to be developed with water or water/alcohol mixtures after imagewise exposure and have, arranged one on top of the other on a dimensionally stable substrate, a layer (A) which may be bonded to the dimensionally stable substrate by an adhesion-promoting layer and is crosslinkable by actinic radiation, a layer (B) which is sensitive to IR radiation and, if required, a parting layer arranged between layer (A) and layer (B), and a peelable protective film applied to the layer (B), are produced by a process in which the layer (A) consists of a mixture of at least one polymeric binder which is soluble or dispersible in water or water/alcohol mixtures, copolymerizable ethylenically unsaturated organic compounds which are compatible with this polymeric binder, a photoinitiator or photoinitiator system and, if required, further assistants, the parting layer which may be arranged between layer (A) and layer (B) is oxygen-permeable and the layer (B) sensitive to IR radiation has an optical density ≧2.5 in the actinic range and contains a film-forming polymeric binder which is soluble or dispersible in water or water/alcohol mixtures and at least one substance which is finely distributed in this binder, absorbs IR radiation and has a high absorbence in the wavelength range from 750 to 20,000 nm, the layer (B) sensitive to IR radiation is structured by laser ablation after the protective film has been peeled off and is then exposed uniformly to actinic radiation, developed with water or water/alcohol mixtures and dried in a conventional manner. The novel process is suitable for the production of gravure printing plates.
    • 在成像曝光后要用水或水/醇混合物显影的光聚合凹版印刷版,并且在尺寸稳定的基材上排列成彼此的尺寸稳定的基底上的层(A),其可以通过 粘合促进层,通过光化辐射可交联,对IR辐射敏感的层(B),如果需要,布置在层(A)和层(B)之间的分离层)和可剥离的保护膜施加到 层(B)通过其中层(A)由至少一种可溶于或可分散在水或水/醇混合物中的聚合物粘合剂的混合物组成的方法制备,可共聚的烯键式不饱和有机化合物与 该聚合物粘合剂,光引发剂或光引发剂体系,并且如果需要,还可以使用其它助剂,可以布置在层(A)和层(B)之间的分离层是透氧的,并且层(B 对于IR辐射敏感的光学密度在光化范围内具有≥2.5的光密度,并且包含可溶于或分散于水或水/醇混合物中的成膜聚合物粘合剂,以及精细分布在该粘合剂中的至少一种物质, 红外辐射,并且在750〜20000nm的波长范围内具有高吸收度,在保护膜被剥离后,对激光烧蚀构成对红外线辐射敏感的层(B),然后均匀地暴露于光化辐射下,与 水或水/醇混合物,并以常规方式干燥。该新方法适用于生产凹版印刷版。