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油墨調(diào)配不均勻,色彩暗淡偏差大?

文章作者:華政印務(wù) 發(fā)布時(shí)間:2021-10-14 62
在選定顏色時(shí)一定要考慮其顏色特性,如耐光、滲透、含鉛等,以免造成經(jīng)濟(jì)損失。
When selecting the color, we must consider its color characteristics, such as light resistance, penetration, lead, etc., so as to avoid economic losses.
1、用線色加白色調(diào)配粉紅色,如10%-20%紅色加90%-80%白色,注意紅色耐光性,因油墨生產(chǎn)廠家注明的顏色特性指原墨的耐光性,但用戶將兩種不同顏色進(jìn)行調(diào)色,會(huì)降低紅色耐光性,本公司的10桃紅,原色墨耐光只有C級(jí),如再進(jìn)行調(diào)色的話,紅色份量越少,耐光越差,如用戶一定調(diào)配粉紅色,建議選用耐光性能好的顏色(在配色內(nèi)10%-20%紅色也能達(dá)到耐光7-8級(jí))。
1. Use line color plus white to mix pink. For example, 10% - 20% red plus 90% - 80% white. First, pay attention to the light resistance of red. Because the color characteristics indicated by the ink manufacturer refer to the light resistance of the original ink, but if users color two different colors, the light resistance of red will be reduced. The light resistance of the original color ink of our company's 10 peach red is only grade C. If you color it again, the less red will be, The worse the light resistance, if the user must prepare pink, it is recommended to choose a color with good light resistance (10% - 20% red can also reach light resistance level 7-8 in the color matching).
2、北京印刷廠很多印刷品都采用紫色,一般的紫色油墨單價(jià)低,如單面印刷則無(wú)須擔(dān)心,如一些包裝要雙面印刷時(shí),特別注意紫色滲透,因?yàn)槠胀ǖ淖仙蔷哂袧B透性(01紫會(huì)滲透)制成成品后存放時(shí)間長(zhǎng),印刷品背面的紫色會(huì)滲透到下面有印刷的其它顏色上,所以用戶要進(jìn)行雙面印刷一定要考慮顏色的滲透性,選用不滲紫來(lái)印刷,避免損失,用01紫所配的其它顏色也具滲透性。
2. Many printed materials in Beijing printing factory use purple. Generally, the unit price of purple ink is low. There is no need to worry about single-sided printing. For example, when some packages are printed on both sides, pay special attention to purple penetration, because ordinary purple is permeable (01 purple will penetrate). After the finished products are made, they will be stored for a long time, and the purple on the back of printed materials will penetrate into other colors printed below, Therefore, if users want to print on both sides, they must consider the permeability of color, and select impermeable purple for printing to avoid loss. Other colors matched with 01 purple also have permeability.
印刷前的選購(gòu)薄膜及印刷后的附著力。
Film before printing and adhesion after printing.
1、購(gòu)買薄膜必 須選用經(jīng)過(guò)電子處理的薄膜,薄膜的表面張力必 須達(dá)到38達(dá)因(指表印),用電暈測(cè)試筆來(lái)測(cè)檢,因薄膜在生產(chǎn)時(shí)(指印刷膜)雖經(jīng)電子處理,但薄膜處理效果會(huì)隨存放時(shí)間延長(zhǎng)呈指數(shù)規(guī)律消退,消退速度與存放的環(huán)境溫度、原料、薄膜厚度等有關(guān),存放的環(huán)境溫度高,消退速度快,薄膜含有添加劑如滑劑、增塑劑,抗靜電劑的消退速度比無(wú)添加劑的更快,現(xiàn)很多印刷廠都能自行吹膜,并進(jìn)行電子處理,但由于未能掌握好處理程序,處理間隙(1-2mm之間),處理電壓(1-1.5萬(wàn)伏)等,使印刷后出現(xiàn)脫色、滲透、粘連、分切困難及使用時(shí)不容易揭開等現(xiàn)象,通常這種情況用測(cè)試筆一劃就可分析出來(lái),所以購(gòu)膜或吹膜時(shí)一定要注意。
1. Electronic treated films must be selected for the purchase of films, and the surface tension of the films must reach 38 dyne (referring to surface printing). The corona test pen shall be used for inspection. Although the films (referring to printed films) are electronically treated during production, the film treatment effect will fade exponentially with the extension of storage time, and the fading speed is related to the storage ambient temperature, raw materials, film thickness, etc, The environmental temperature for storage is high and the fading speed is fast. The film contains additives such as sliding agent, plasticizer and antistatic agent. At present, many printing plants can blow the film by themselves and conduct electronic processing. However, due to the failure to master the processing procedures, the processing gap (between 1-2mm) and processing voltage (10000-15000 V), decolorization, penetration, adhesion, etc. occur after printing It is difficult to cut and it is not easy to uncover during use. Usually, this situation can be analyzed with a stroke of the test pen, so you must pay attention to when purchasing or blowing film.
2、印刷廠測(cè)檢印刷品的附著力習(xí)慣在機(jī)器上進(jìn)行,即一邊印刷一邊用膠粘帶測(cè)檢,其實(shí)這是不科學(xué)的,因?yàn)橛湍€未徹干,附著力的測(cè)檢在印刷后8小時(shí)進(jìn)行。
2. In fact, this is unscientific, because the ink is not completely dry, and the measurement and inspection of adhesion is carried out 8 hours after printing.

聲明:文章來(lái)源于http://www.helloyong.com/

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