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        1. 當前位置:首頁-新聞中心>>企業動態>>透明不干膠標簽印刷廠家油墨氣泡解決

          透明不干膠標簽印刷廠家油墨氣泡解決

          來源:http://www.apersianrug.com/ 日期:2021-03-09 發布人:shengfeng 1.改進油墨配方
          1. Improve the ink formula
          為減少印刷生產中油墨氣泡的產生,在滿足印品顏色等各項指標的前提下,盡量選用不易起泡的油墨配方,同時盡量避免油墨中存在固體成分,可以適當降低油墨循環系統的流動性,減緩油墨攪拌。當油墨黏度較低、表面張力較小時,就不易產生氣泡現象。
          In order to reduce the generation of ink bubbles in printing production, on the premise of meeting the printing color and other indicators, try to choose the ink formula that is not easy to bubble, and try to avoid the existence of solid components in the ink, which can appropriately reduce the fluidity of the ink circulation system and slow down the mixing of ink. When the ink viscosity is low, the surface tension is small, it is not easy to produce bubbles.
          在油墨特性允許下,選用疏水性溶劑添加劑,可一定程度上減少油墨氣泡的產生。
          In the ink characteristics allow, the selection of hydrophobic solvent additives, to a certain extent, can reduce the generation of ink bubbles.
          2.添加消泡劑
          2. Add defoamer
          為解決油墨氣泡問題,許多企業都會在油墨中添加消泡劑。
          In order to solve the problem of ink bubble, many enterprises will add defoamer in the ink.
          一般情況下,消泡劑對油墨氣泡的抑制與消泡劑的添加量成正比。但是消泡劑的添加量與油墨相融特性存在一個飽和度,過度增加消泡劑不僅無法對油墨氣泡起到徹底消除的作用,反而會使油墨流平性受到嚴重影響,導致其他印刷質量問題產生。
          In general, the inhibition of defoamer on ink bubbles is directly proportional to the amount of defoamer added. However, there is a saturation between the amount of defoamer and the ink compatibility. Excessive increase of defoamer can not completely eliminate the ink bubbles, but will seriously affect the ink leveling and lead to other printing quality problems.
          透明不干膠標簽印刷廠家
          消泡劑的優越性在于含特殊改性聚醚,經過特殊工藝復合配制而成,易溶于水,可一定程度對油墨氣泡進行抑制和消除,同時不會影響印品透明度,且不會產生二次污染,對環境不會造成有害影響。
          The advantage of defoamer is that it contains special modified polyether and is compounded by special process. It is easily soluble in water and can inhibit and eliminate ink bubbles to a certain extent. At the same time, it will not affect the transparency of printing products, and will not produce secondary pollution, and will not cause harmful effects on the environment.
          需要注意的是,添加適量消泡劑僅可以在一定程度上保證印刷正常運行,墨槽內仍有氣泡存在,由氣泡引起的印品質量問題也依舊存在,且在印刷質量問題中占有較大比例。不同油墨需要添加特定的消泡劑,否則會對油墨產生不良影響,消泡劑的抑制作用隨時間推移會逐漸消弱。
          It should be noted that adding an appropriate amount of defoamer can only ensure the normal operation of printing to a certain extent, there are still bubbles in the ink tank, and the printing quality problems caused by bubbles still exist, and occupy a large proportion in the printing quality problems. Different inks need to add a specific defoamer, otherwise it will have adverse effects on the ink, and the inhibition of defoamer will gradually weaken with time.
          3.加裝油墨氣泡擠壓裝置
          3. Install ink bubble extrusion device
          在添加消泡劑的基礎上,為進一步解決油墨氣泡引起的印刷質量問題,可在墨槽內加裝氣泡擠壓裝置。具體做法是,在印刷機墨槽中加一根膠輥與印版輥相切(如圖1),在印版輥旋轉時可帶動膠輥旋轉,膠輥與墨槽連接時需要添加彈簧組件,彈性接觸使膠輥對印版輥有很小的作用力,保證印版輥自身旋轉時不會受到影響。同時,避免印版輥與膠輥鋼性接觸,保證兩軸輥的使用壽命。
          On the basis of adding defoamer, in order to further solve the printing quality problems caused by ink bubbles, a bubble extrusion device can be installed in the ink tank. The specific method is to add a rubber roller in the ink tank of the printing machine, which is tangent to the plate roller (as shown in Figure 1). When the plate roller rotates, it can drive the rubber roller to rotate. When the rubber roller is connected with the ink tank, it needs to add a spring component. The elastic contact makes the rubber roller have a small force on the plate roller, so as to ensure that the plate roller will not be affected when it rotates. At the same time, avoid the plate roller and cot rigid contact, ensure the service life of two axis roller.

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