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印刷時考驗細心程度的四個注意事項!
作者:admin 來源:本站 發布時間:2019-6-27 14:12:36 瀏覽次數:136
印刷是非常需要我們細心的的一件事,只有足夠細心,才可以印刷出完美的印刷品,下面濟南彩色乐天堂fun88体育公司來給我們總結幾點印刷時特別看眼我們細心程度的四點注意事項,希望對大家有所幫助!
Printing is a very important thing for us to be careful. Only if we are careful enough, can we print the perfect printed matter. Now Jinan Color Design Printing Company will summarize some points for us to pay special attention to when printing. I hope it will be helpful to you all! 
一、注意觀察樣張
I. Pay attention to the observation sample
①印刷中抽樣檢查。進入正式印刷后不久,在開印時確定的供墨量、上水量多少會有些變化,應頻繁抽樣檢查,進行再調整。在印刷速度保持不變,供墨量和上水量等都處于穩定的狀態時,按每印500~1000張/次的比例進行抽樣檢查。
Sampling inspection in printing. Shortly after entering the formal printing, there will be some changes in the amount of ink supply and water supply determined at the time of printing. Frequent sampling inspection and readjustment should be carried out. When the printing speed remains unchanged, ink supply and water supply are in a stable state, the sampling inspection is carried out according to the ratio of 500 to 1000 sheets per printing.
②夾入警示紙條。正式印刷中,對于發生故障的地方,作為一種記號,應夾入細長的警示紙條,以方便于在后工序中進行檢查。
(2) Insert warning note. In formal printing, as a sign, a long warning note should be inserted to facilitate the inspection in the later process.
二、注意上水的變化
2. Pay attention to the change of water supply
①注意正式印刷初期上水的變化。試印時的上水量和進入正式印刷后的上水量,多少都會有些變化,一定要一邊注意觀察樣張有無重影、水扛子,一邊注意調解印版的給水量。
Attention should be paid to the change of water supply in the initial stage of formal printing. The amount of water used in trial printing and after entering the formal printing will change somewhat. We must pay attention to the observation of duplication of sample sheets and water carriers, and adjust the amount of water supplied to the printing plate at the same time.
②注意正式印刷過程中上水的變化。要密切注意機器主體發熱和車間內的通風狀況給上水帶來的影響,酒精潤版要注意潤濕系統冷卻裝置,控制好潤濕液的溫度,上水過少,會使印版起臟;上水過多將引起油墨乳化,會帶來一系列問題。比如印品無光澤,紙張伸縮而套印不準,延緩油墨的干燥等。

(2) Pay attention to the change of water supply in the process of formal printing. It is necessary to pay close attention to the influence of the heating of the main body of the machine and the ventilation condition in the workshop on the water supply. Alcohol wetting plate should pay attention to the cooling device of the wetting system, control the temperature of the wetting liquid, and too little water will make the printing plate dirty; too much water will cause ink emulsification, which will bring a series of problems. For example, the gloss of printing products, paper flexibility and improper overprinting, delaying the drying of ink and so on.

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三、注意油墨的變化
3. Pay attention to the change of ink
①注意墨斗的油墨。墨斗的油墨從墨斗輥和墨斗刮刀之間的縫隙傳出,是由油墨的自重而自然被擠壓出來的。因此,墨斗中油墨量的多少,直接影響油墨的輸出量。所以,要注意讓墨斗中保持一定量的油墨。另外,印刷油墨具有觸變性質。放置在墨斗中較久,流動性會逐漸變差,因而,要經常用墨刀在墨斗中攪拌,或者安裝油墨攪拌器。
Pay attention to the ink in the ink bucket. Ink from the bucket roller and the bucket scraper gap between the ink, is the weight of the ink and is naturally squeezed out. Therefore, the amount of ink in ink bucket directly affects the output of ink. Therefore, attention should be paid to keeping a certain amount of ink in the ink bucket. In addition, printing ink has thixotropic properties. If placed in ink bucket for a long time, the fluidity will gradually deteriorate. Therefore, it is necessary to mix in ink bucket with ink knife or install ink mixer.
②防止油墨在機器上干燥。長時間停機如吃飯、休息時,墨輥上的油墨和墨斗中的油墨表面就會干燥。可使用干燥抑制劑噴在需要防止干燥處。
Prevent ink from drying on the machine. When the machine is shut down for a long time, such as eating and resting, the ink on the roller and the ink surface in the ink bucket will dry. Drying inhibitors can be sprayed at places where drying needs to be prevented.
③注意油墨均勻,印刷品的密度視上水量、室溫、機器速度不同而發生變化。應經常與標準樣張進行對比檢查。注意防止出現墨色不均勻現象。
(3) Pay attention to the uniformity of ink, the density of printed matter changes depending on the amount of water, room temperature and machine speed. It should be checked regularly in comparison with the standard sample sheet. Attention should be paid to prevent the uneven ink color.
④保持潤濕液的pH值,油墨中添加了輔助劑后,容易影響潤濕液的pH值,如pH值增大則易造成印版起臟,因此要特別注意。
(4) Maintaining the pH value of the wetting solution, the addition of auxiliary agent in the ink can easily affect the pH value of the wetting solution. If the pH value increases, the printing plate will be dirty, so special attention should be paid to it.
四、注意背面蹭臟
4. Pay attention to dirty rubbing on the back
背面蹭臟是由于油墨干燥緩慢、圖文墨層過厚、紙張平滑度高等原因,使印張表面的油墨粘到上一張印張的背面的現象。
The dirty back is due to the slow drying of ink, thick ink layer and high smoothness of paper, which makes the ink on the surface of the sheet stick to the back of the previous sheet.
今天的精彩內容就暫且和大家介紹到這里了,如果大家還有其他想要了解的地方,歡迎大家到我們濟南彩色乐天堂fun88体育公司的官網給我們留言評論:http://fashionalized.com,或者直接撥打我們的咨詢熱線,我們將給您一個滿意的答復!
Today's wonderful content will be introduced here for the time being. If you have other places you want to know, please leave a message and comment on our website of Jinan Color Design and Printing Company: http://fashionalized.com, or call our hotline directly. We will give you a satisfactory answer!