Method for improving surface energy of aluminum plate by using plasma

A plasma and aluminum plate technology, which is used in the preparation of plasma, printing surface, and device for coating liquid on the surface, etc. The effect of improving adhesion and increasing wetting speed

Inactive Publication Date: 2010-02-03
中国印刷科学技术研究所
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Problems solved by technology

[0009] The purpose of the present invention is to provide a method for improving the surface energy of the aluminum plate with plasma, so as to solve the problem that the surface energy of the aluminum plate in the prior art is low, so that the surface of the aluminum plate cannot

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  • Method for improving surface energy of aluminum plate by using plasma
  • Method for improving surface energy of aluminum plate by using plasma
  • Method for improving surface energy of aluminum plate by using plasma

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specific Embodiment

[0064] Raw materials: ordinary aluminum plate (surface corrosion, anodized aluminum grain plate);

[0065] Equipment used: special power supply 11 for arc plasma (low voltage and high current), such as figure 2 The plasma gun 1 shown;

[0066] Processing process: spray the jet on the surface of the processed aluminum plate in a scanning manner, and use the jet area (the distance from the nozzle 3 to be less than L) to process (refer to Figure 15 );

[0067] Then inkjet or coating process can be carried out. Inkjet is the inkjet of sand grain aluminum plate in the process of CTP processing; coating is the undercoating or coating of photosensitive glue in the production process of traditional PS and CTP plate.

[0068] For the effect of ordinary aluminum plate samples before and after treatment, see Figure 17 and Figure 18 , Figure 17 Shown is the test diagram of the contact angle a of deionized water droplets 8 on the surface of the untreated sample, a is about 67°. ...

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Abstract

The invention relates to a method for improving surface energy of an aluminum plate by using a plasma, which is characterized in that a plasma generating device is used for generating the plasma, andactivation treatment of the surface of the ordinary aluminum plate is implemented by leading the ordinary aluminum plate to pass through the plasma, so as to achieve the purpose of improving the surface energy of the aluminum plate, then ink is jetted on the surface of the aluminum plate after treatment, and the ordinary aluminum plate refers to an aluminum alloy plate which leads the surface to form dense sand meshes by the technologies of electrolytic coarsening and anode oxidation. The method has the advantages that the uniformity of the surface treatment is good, the method has the roles of surface cleaning and etching and can increase the contract specific surface area and improve the wetting adhesion and the spreadability, a coating layer can be very thin, the method does not have the problems of uncoating and uneven coating and simultaneously avoids the negative impacts on the surface appearance of the plate due to the use of a surfactant, the surface treatment is directly carried out on the surface of a sand mesh layer, the method does not use an intermediate layer, active particles can generate strong chemical bonds, improve the adhesion and lead the press run of a produced printing plate to be high, the production cost is low and the treatment speed is fast.

Description

technical field [0001] The invention relates to a method for improving the surface energy of an aluminum plate by using plasma. The application fields include: surface treatment of sandy aluminum plates before inkjet in the inkjet CTP process, and before primer coating in the traditional PS and CTP plate production processes. Surface treatment of grainy aluminum plate, surface treatment of undercoat before applying photosensitive adhesive. Background technique [0002] The environment-friendly inkjet CTP (computer-to-plate) offset printing plate is gradually accepted by more and more printing companies due to its advantages of simple production process, no printing and developing process, environmental protection and low printing cost. Its production process is to print the ink directly on the aluminum plate base, but because the aluminum plate base is not easy to absorb ink, the ink cannot spread well when printed on the aluminum plate base, and even flow, and cannot form c...

Claims

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Application Information

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IPC IPC(8): B41N3/03B05D3/00H05H1/34
Inventor 褚庭亮汤文杰陈强许文才刘金英
Owner 中国印刷科学技术研究所
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