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Why cant the development of etching machine always show through?蝕刻機腐蝕技術之為什麽有時顯影總顯不透?

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Why cant the development of etching machine always show through?蝕刻機腐蝕技術之為什麽有時顯影總顯不透?

發布日期:2018-11-02 作者:www.tonertimes.com 點擊:

  金屬等離子刻蝕機蝕刻技術在製作網版的過程中,有時在圖文部分往往出現顯影不透的現象,主要有以下幾個方麵的原因:

  一. 是在恒溫箱中烘幹網版的時間太長或烘幹的溫度太高,兩者都可使塗布感光膠的網版在沒有曝光之前就產生“熱敏化” ,如果再曝光就產生過量曝光,因此,圖像難以顯透了。

  二. 在塗布感光膠時,由於塗布的次數較多,塗布時又不注意避光操作造成多次曝光,再曝光時就難以顯透圖像。

  三. 曬版光源強度太大,曬版時間太長造成曝光過度,造成顯影困難。有時圖像反差太小,曝光時就會產生曝光過度,造成顯影困難。

In the process of making screen plate, sometimes the picture and text part of the etching technology of metal plasma etcher often appears the phenomenon of developing impervious. The main reasons are as follows:

    first, the drying time of screen plate in the incubator is too long or the drying temperature is too high, both of which can make the screen plate coated with photosensitive adhesive produce "heat sensitivity" before it is exposed If re exposed, it will cause over exposure, so the image is difficult to show through.

    Second、 In the coating of photoresist, due to the number of times of coating, coating and do not pay attention to the operation of avoiding light, resulting in multiple exposures, re exposure is difficult to show through the image.

    Third、 The intensity of the light source is too large, and the exposure time is too long, which makes the development difficult. Sometimes the image contrast is too small, the exposure will produce overexposure, resulting in development difficulties.


等離子刻蝕機

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相關標簽:等離子刻蝕機

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