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  • 絲網印刷的感光制版法

  • 本站編輯:xghl發布日期:2017-09-06 09:12 浏覽次數:
絲印标牌所用的印牌精度要求較高,一般都采用先進的間接、直間、直接三種感光制版法。
The precision of the printing plate used for the screen marks is high, and the advanced indirect, direct and direct three kinds of photosensitive plate making method are generally adopted.
 
間接制法
Indirect method
 
(1)準備網框和感光膜:把繃好的網框(尼龍絲用220-260目的)用10%磷酸鈉水溶液清洗,除去油污。線網感光膜是一種以聚烯醇膠為主體的感光膠,膜是在0.12-0.06毫米透明塑料片基上把明膠為主體感光劑塗布,使用前接圖形大小,每邊寬出20毫米,用布把膜上的粉末污物擦除幹淨。
(1) preparation of net frame and photosensitive film: the bandaged net frame (nylon wire for 220-260 purposes) with 10% sodium phosphate water solution cleaning, remove oil pollution. Line of photographic film is a kind of polyvinyl alcohol glue as the main body of the sensitive glue film is in the 0.12 - 0.06 mm plastic plate based on the transparent gelatin as the main body of emulsion coating before use, connected graph size, each edge width 20 mm, a piece of cloth on the membrane of powder dirt cleaning.
 
(2)曝光:把膜與底版在曬版機内壓緊,用碳精燈或氙燈進行曝光。網框與光源的距離為50-60厘米,曝光時間2-6分鐘。
(2) exposure: the membrane and the bottom plate in the printer in the press, with the carbon arc lamp or xenon lamp exposure. The distance between the net frame and the light source is 50-60 centimeters, and the exposure time is 2-6 minutes.
(3)顯影:曝光後,将菲膜放在平闆上,用溫水浸潤網膜1-2分鐘,用水噴頭噴淋,用水溶去非感光部分(圖形部分)曬版、顯影後的菲膜,直到圖形清晰為止。
(3) developing: after exposing, put the phenanthrene membrane on the flat plate, infiltrate the omentum with warm water for 1-2 minutes, sprinkler with water sprinkler, and dissolve the non photosensitive part (Figure part) after printing and developing the phenanthrene film until the figure is clear.
 
(4)貼膜:把曝光顯的菲林膜面貼在絲網上,标牌制作中人膜的背面用橡皮闆或其它直闆,輕輕刮貼,使膜與網接觸牢固,馬上放在烘箱内,在溫度55±2度的條件下烘烤8-12分鐘,幹燥後,把網框固定在印版台上進行試印。
(4) film: the film film exposure significantly face paste onto the screen, making signs in human membrane back with rubber plate or other straight, gently scraping stick, the membrane and net firm contact, immediately put in the oven, at a temperature of 55 + 2 degrees under the conditions of bake for 8 to 12 minutes, dry after the screen frame is fixed on the printing plate table printing.
 
(5)去膜方法:在曝光、顯影過程中,發現版不合格時,馬上用溫水可把膠膜刷掉重新制作。如果版已幹燥或生産一段時間後再去膜時,可用工業次氯酸鈉與水各一份,浸泡10-20分鐘。或有5%氫氧化鈉水溶液加溫處理網版,可除去膠膜。
(5) the method of film removal: in the process of exposure and development, when the discovery is unqualified, the film can be brushed out and reproduced with warm water. If the version has been drying or production after a certain period of time to the film when used in industrial sodium hypochlorite and a water, soak 10-20 minutes. Or 5% sodium hydroxide aqueous solution is heated to treat the net plate, and the adhesive film can be removed.