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  • 乐百家官方网站loo789:丝网印刷的感光制版法

  • 本站编辑:xghl发布日期:2017-09-06 09:12 浏览次数:
丝印标牌所用的印牌精度要求较高,一般都采用先进的间接、直间、直接三种感光制版法。
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.
 
间接制法
Indirect method
 
(1)准备网框和感光膜:把绷好的网框(尼龙丝用220-260目的)用10%磷酸钠水溶液清洗,除去油污。线网感光膜是一种以聚烯醇胶为主体的感光胶,膜是在0.12-0.06毫米透明塑料片基上把明胶为主体感光剂涂布,使用前接图形大小,每边宽出20毫米,用布把膜上的粉末污物擦除干净。
(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:把膜与底版在晒版机内压紧,用碳精灯或氙灯进行曝光。网框与光源的距离为50-60厘米,曝光时间2-6分钟。
(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)显影:曝光后,将菲膜放在平板上,用温水浸润网膜1-2分钟,用水喷头喷淋,用水溶去非感光部分(图形部分)晒版、显影后的菲膜,直到图形清晰为止。
(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)贴膜:把曝光显的菲林膜面贴在丝网上,标牌制作中人膜的背面用橡皮板或其它直板,轻轻刮贴,使膜与网接触牢固,马上放在烘箱内,在温度55±2度的条件下烘烤8-12分钟,干燥后,把网框固定在印版台上进行试印。
(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、显影过程中,发现版不合格时,马上用温水可把胶膜刷掉重新制作。如果版已干燥或生产一段时间后再去膜时,可用工业次氯酸钠与水各一份,浸泡10-20分钟。或有5%氢氧化钠水溶液加温处理网版,可除去胶膜。
(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.

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