Process for the one-stage anodic oxidation of aluminum bases for offset
printing plates and product thereof
    71.
    发明授权
    Process for the one-stage anodic oxidation of aluminum bases for offset printing plates and product thereof 失效
    用于胶印印版的铝基的一级阳极氧化工艺及其制品

    公开(公告)号:US4604341A

    公开(公告)日:1986-08-05

    申请号:US634588

    申请日:1984-07-26

    申请人: Dieter Mohr

    发明人: Dieter Mohr

    摘要: A process is disclosed for the production of bases for offset printing plates in the form of sheets, foils or webs made of roughened aluminum or one of its alloys, which is carried out in an anodic oxidation stage, i.e. in an aqueous electrolyte which contains phosphorus-containing anions. In the procedure, an electrolyte containing dissolved phosphoroxo anions, with the exception of aqueous H.sub.3 PO.sub.4, is employed, and the treatment is carried out for a period of about 1 to 90 seconds, at a voltage between about 10 and 100 volts and at a temperature of about 10.degree. to 80.degree. C. The electrolyte is, in particular, a salt of an oxyacid of phosphorus, such as Na.sub.3 PO.sub.4 or K.sub.3 PO.sub.4. Hydrophilization of the base can be carried out additionally after the anodic oxidation. Also disclosed is a base material produced according to the process and an offset printing plate which includes the base material.

    摘要翻译: 公开了一种用于生产由粗糙铝或其合金之一制成的片材,箔或网的形式的胶版印刷版的方法,其在阳极氧化阶段即在含有磷的水性电解质中进行 含阴离子。 在该方法中,使用除了H 3 PO 4水溶液之外含有溶解的磷氧阴离子的电解质,并且处理在约1至90秒的时间内,在约10至100伏之间的电压和温度 约10℃至80℃。电解质特别是磷的含氧酸盐,例如Na 3 PO 4或K 3 PO 4。 在阳极氧化后,还可以进行碱的亲水化。 还公开了根据该方法生产的基材和包括基材的胶版印刷版。

    Process for electrochemical roughening of aluminum useful for printing
plate supports, in an aqueous mixed electrolyte
    72.
    发明授权
    Process for electrochemical roughening of aluminum useful for printing plate supports, in an aqueous mixed electrolyte 失效
    在水性混合电解质中用于印版载体的铝的电化学粗糙化方法

    公开(公告)号:US4566958A

    公开(公告)日:1986-01-28

    申请号:US689002

    申请日:1985-01-04

    申请人: Engelbert Pliefke

    发明人: Engelbert Pliefke

    IPC分类号: B41N3/00 B41N3/03 C25F3/04

    CPC分类号: C25F3/04 B41N3/034

    摘要: In the electrochemical roughening of aluminum or its alloys useful for printing plate supports, an aqueous mixed electrolyte solution is employed, which contains hydrochloric acid (HCl) and hydrofluoric acid (HF), in particular in an amount of from about 0.5 to 10% by weight of HCl and of from about 0.05 to 5% by weight of HF. The very uniformly roughened support materials are used in the production of offset printing plates.

    摘要翻译: 在用于印版载体的铝或其合金的电化学粗糙化中,使用含有盐酸(HCl)和氢氟酸(HF)的水性混合电解质溶液,特别是约0.5〜10% 的HCl重量和约0.05-5%重量的HF。 非常均匀的粗糙化的支撑材料用于生产胶版印刷版。

    Two-stage process for the production of anodically oxidized aluminum
planar materials and use of these materials in manufacturing
offset-printing plates
    73.
    发明授权
    Two-stage process for the production of anodically oxidized aluminum planar materials and use of these materials in manufacturing offset-printing plates 失效
    用于生产阳极氧化铝平面材料的两阶段工艺,以及在制造胶版印刷版中使用这些材料

    公开(公告)号:US4566952A

    公开(公告)日:1986-01-28

    申请号:US595538

    申请日:1984-03-30

    摘要: Disclosed is a process for the production of a material in the form of a plate, a foil or a strip, from aluminum or an alloy thereof, which has been chemically, mechanically and/or electrochemically roughened. The process comprises a two-stage oxidation involving a first stage (a) which is performed in an aqueous electrolyte having from about 60 to 180 g/l of phosphoric acid, at a temperature of the electrolyte bath of about 47.degree. to 70.degree. C. and at a voltage of about 36 to 80 V and a second stage (b) which is performed in an aqueous electrolyte having from about 60 to 300 g/l of sulfuric acid, at a temperature of the electrolyte bath of about 30.degree. to 65.degree. C. and at a voltage of about 15 to 35 V. Also disclosed is an offset-printing plate, having a radiation-sensitive coating and a support material produced by the process described above.

    摘要翻译: 公开了一种通过化学,机械和/或电化学粗糙化的铝或其合金制成板,箔或条形的材料的方法。 该方法包括涉及第一阶段(a)的两阶段氧化,其在约60-180g / l磷酸的水性电解质中,在电解液浴温度为约47℃至70℃ 并且在约36至80V的电压和在约60至300g / l硫酸的电解质水溶液中进行的第二阶段(b),在电解液浴的温度为约30°至 并且在约15至35V的电压下进行。还公开了一种胶版印刷版,其具有通过上述方法制备的辐射敏感涂层和支撑材料。

    Process for manufacturing support materials for offset printing plates
    74.
    发明授权
    Process for manufacturing support materials for offset printing plates 失效
    制造胶版印刷用支撑材料的工艺

    公开(公告)号:US4554057A

    公开(公告)日:1985-11-19

    申请号:US466083

    申请日:1983-02-14

    申请人: Dieter Mohr

    发明人: Dieter Mohr

    摘要: The process for manufacturing support materials for offset-printing plates is carried out in two stages. These materials are in the form of plates, foils, or strips, composed of aluminum, or an alloy thereof, which have been roughened by chemical, mechanical and/or electrochemical treatment. These two stages comprise an anodic oxidation in (a) an aqueous electrolyte based on sulfuric acid, and in (b) an aqueous electrolyte with a content of anions which contain phosphorus. An electrolyte with a content, in solution, of phosphoroxo anions, phosphorofluoro anions, and/or phosphoroxofluoro anions is employed in stage (b), and the treatment is carried out at a voltage between about 10 and 100 V, at a temperature of from about 10.degree. to 80.degree. C., and for a duration of from abut 1 to 60 seconds. The electrolyte is, in particular, an oxygen acid of phosphorus, or a salt with the above-mentioned anions. Following stage (b), it is also possible to carry out an additional treatment to impart hydrophilic properties to the support material.

    摘要翻译: 胶版印刷用支撑材料的制造方法分两个阶段进行。 这些材料是通过化学,机械和/或电化学处理而被粗糙化的由铝或其合金组成的板,箔或条的形式。 这两个阶段包括(a)基于硫酸的水性电解质和(b)含有含磷含量的阴离子的水性电解质中的阳极氧化。 在阶段(b)中使用具有在磷酸阴离子,磷氟阴离子和/或磷氟氟阴离子溶液中含量的电解质,并且处理在约10至100V的电压下,在 约10℃至80℃,持续1至60秒。 电解质尤其是磷的氧酸或与上述阴离子的盐。 在阶段(b)之后,还可以进行附加处理以赋予支撑材料亲水性。

    Process for aluminum surface preparation
    76.
    发明授权
    Process for aluminum surface preparation 失效
    铝表面处理工艺

    公开(公告)号:US4502925A

    公开(公告)日:1985-03-05

    申请号:US619105

    申请日:1984-06-11

    申请人: John E. Walls

    发明人: John E. Walls

    摘要: A method for treating an aluminum sheet useful for lithography by etching said sheet in an aqueous bath containing up to about 25% of nitric and/or hydrochloric acids and from about 1% to about 25% of an inorganic fluorine containing acid or salt thereof. Said etching step is sequentially followed by electrochemical graining and anodizing process steps.

    摘要翻译: 通过在包含高达约25%的硝酸和/或盐酸和约1%至约25%的无机含氟酸或其盐的水浴中蚀刻所述片材来处理用于光刻的铝片的方法。 所述蚀刻步骤依次是电化学粗化和阳极氧化处理步骤。

    Three phase graining of aluminum substrates
    79.
    发明授权
    Three phase graining of aluminum substrates 失效
    铝基板三相磨纹

    公开(公告)号:US4396468A

    公开(公告)日:1983-08-02

    申请号:US332392

    申请日:1981-12-21

    申请人: John E. Walls

    发明人: John E. Walls

    摘要: A method for the production of aluminum substrates useful in the production of lithographic printing plates which comprises simultaneously electrochemically graining both sides of an aluminum sheet in an electrolyte employing three phase alternating current.

    摘要翻译: 一种生产用于生产平版印刷版的铝基板的方法,该方法包括同时使用三相交流电在电解液中对铝片的两面进行电化学研磨。

    Lithographic substrates
    80.
    发明授权
    Lithographic substrates 失效
    平版印刷基板

    公开(公告)号:US4242417A

    公开(公告)日:1980-12-30

    申请号:US69482

    申请日:1979-08-24

    申请人: Jen-chi Huang

    发明人: Jen-chi Huang

    摘要: A method for the production of aluminum substrates useful in the production of lithographic printing plates which comprises mechanically graining the surface of an aluminum sheet, subsequently finely graining the mechanically grained sheet in a saturated solution of an aluminum salt of a mineral acid to which up to 10% of a mineral acid has been added, with discretional electrolysis, and then optionally anodizing the sheet.

    摘要翻译: 一种用于生产可用于生产平版印刷版的铝基板的方法,其包括将铝板的表面机械地粗糙化,随后将机械颗粒化的片材细碎到无机酸的铝盐的饱和溶液中, 加入10%无机酸,进行离子电解,然后任选地阳极氧化该片。