Many Jinan label printing companies have the same problems in printing. In the process of label printing of film materials, it is easy to have ink loss in surface printing, which greatly affects the quality of printed products and even delays the delivery date. This paper summarizes and enumerates the reasons and improvement skills of common ink loss from the resume of daily printing, so as to find out a better treatment plan.

　　問題一：涂層缺陷

　　Problem 1: coating defects

　　通例薄膜分為帶涂層和不帶涂層二種，而薄膜涂層缺陷導致油墨掉墨的緣故也就響應分為兩種環境：關于帶涂層的薄膜質料，要是外貌涂層牢靠度差，會導致油墨附出力差；而無涂層薄膜質料往往由于面層與油墨連結牢度欠好，導致油墨掉墨。

　　The general film is divided into two kinds: with coating and without coating, and the reason why the film coating defects lead to ink loss is also divided into two environments: as for the film material with coating, if the appearance of the coating is poor, it will lead to poor ink adhesion; as for the uncoated film material, due to the poor connection between the surface layer and the ink, it will lead to ink loss.

　　針對涂層缺陷導致的油墨掉墨，能夠通過如下方式來辦理：采取面層上光油印刷處分，保護油墨上層，起到防備掉墨的用途；面層接納電暈再處分，質料外貌電暈達因值應不低于38毫米/m，達因值低于36毫米/m則會干脆影響到印刷油墨牢靠度；面層打底涂或應用油墨附出力強的加強劑（調配比例為3%擺布），也能夠進步膜類面層的著墨力；某些亞面合成紙質料由于外貌涂層具有必然紙張涂層的特征，以是不適用用3M膠帶檢驗。

　　For ink loss caused by coating defects, it can be handled in the following ways: take varnish printing on the surface layer to protect the upper layer of the ink for the purpose of preventing ink loss; the surface layer receives corona re treatment, and the appearance corona dyne value of the material shall not be less than 38m M / m, and the dyne value less than 36mm / m will simply affect the printing ink fastness; the surface layer is applied with primer or ink The strength of the film surface layer can also be improved by adding a strong reinforcing agent (the mixing ratio is 3% swing); because the appearance coating of some sub surface synthetic paper materials has the characteristics of inevitable paper coating, it is not suitable to use 3M tape for inspection.

　　問題二：張力

　　Question 2: Tension

　　關于印刷外貌為電暈處分的薄膜質料，要到達良好的油墨潤濕，達因值平時需求38毫米/m以上，低于36毫米/m就容易出現掉墨問題；同時，這種質料的達因值會隨光陰而漸漸消退，出現印刷掉墨問題。這一問題的本色是張力問題。

　　As for the film material with corona treatment on the surface of printing, in order to achieve good ink wetting, the dyne value usually needs more than 38m M / m, and less than 36mm / m, which is prone to ink loss; at the same time, the dyne value of this material will gradually fade with time, resulting in ink loss. The essence of this problem is tension.

　　關于這種環境導致的掉墨，有如下幾種辦理計劃：用有聯機電暈功效的衛星輪起色，舉行聯機電暈處分來進步膜類質料外貌能；采取間歇印刷機能夠舉行外貌打底涂處分，用以進步外貌印刷附出力；當達因值出現消退時，印刷時需求用電暈加以處分，但達因值的大小并不行徹底代表油墨與面材之間的附出力，普通達因值的消退周期為3個月-6個月，以是建議盡管削減庫存質料的永遠存放。

　　As for the ink drop caused by this kind of environment, there are several handling plans as follows: use the satellite wheel with online corona effect to start color, hold online corona treatment to improve the appearance of membrane materials; adopt the intermittent printing machine to conduct the appearance primer treatment to improve the appearance printing adhesion; when the cause value disappears, the corona treatment is required during printing, but the cause value is large Small does not completely represent the adhesion between the ink and the surface material. The fading cycle of the common dyne value is 3-6 months, so it is recommended to reduce the storage of the stock material forever.

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