The printing suitability of different paper boxes is quite different. If we do not take appropriate technological measures according to the material conditions, it will bring some problems to normal production. But even if the same type of paper products are used, the quality and printing adaptability of base paper will be different due to the differences in materials and processes between different brands or manufacturers. If some white cardboard, white cardboard and glass cards are acidic, ink drying is slow after printing, which will lead to difficulties in overprinting of semi-finished products and a significant increase in the rate of unqualified products; some low-grade white cardboard and glass cardboard have poor surface strength and are prone to quality failures such as powder dropping, hair dropping, foaming or delamination in the printing process.

　　由于印刷紙張多是由客戶確定的，所以印刷企業(yè)往往處于被動(dòng)遷就的狀態(tài)。但即使面對的是客戶為了降低成本而選擇的不太令人滿意的紙品，我們亦要在印刷工藝上進(jìn)行精心的設(shè)計(jì)，以達(dá)到質(zhì)量的盡可能提升。羿彩包裝印刷廠經(jīng)過多年的實(shí)踐得出幾點(diǎn)心得，愿與大家分享。

　　Because printing paper is mostly determined by customers, printing enterprises are often in a passive accommodation state. But even if we are faced with the unsatisfactory paper products that customers choose in order to reduce costs, we should also carefully design the printing process in order to improve the quality as much as possible. After years of practice, Yicai Packaging and Printing Factory has gained some experience, which I would like to share with you.

　　印刷偏酸的紙板，應(yīng)采用快干快固著的油墨。

　　Printing acid cardboard should use fast-drying and fast-fixing ink.

　　對于表面強(qiáng)度差的紙板，應(yīng)調(diào)整降低油墨的粘度，同時(shí)適當(dāng)降低印刷的壓力和印刷的車速。

　　For cardboard with poor surface strength, the viscosity of ink should be adjusted to reduce the printing pressure and speed.

　　若采用多色機(jī)組印刷且色組有多余，可將前色組空出來行空壓印以去除紙粉、紙毛，避免或減少質(zhì)量故障。

　　If the multi-color printing unit is used and the color set is redundant, the pre-color set can be emptied and air-imprinted first to remove the paper powder and wool, so as to avoid or reduce the quality failure.

　　對于印后要覆啞膜的產(chǎn)品，可不用選擇過于昂貴的油墨，如高光油墨，因?yàn)楦吖庥湍拇髢?yōu)勢在于印刷墨層光澤度高，但是產(chǎn)品經(jīng)過覆啞膜后會(huì)覆蓋油墨層的高光澤度，所以將高光油墨用于覆膜產(chǎn)品會(huì)造成浪費(fèi)。

　　For products with dumb film after printing, it is not necessary to choose too expensive ink, such as high gloss ink, because the greatest advantage of high gloss ink is high gloss of the printing ink layer, but the product will cover the high gloss of the ink layer after dumb film coating, so using high gloss ink for film coating products will cause waste.

　　要注意套印順序的工藝設(shè)計(jì)，如在黃底色或紅底色上疊印黑色的文字、字母或線條時(shí)，應(yīng)先印刷黑色的文字、字母或線條，然后將黃底色或紅底色疊印在其上面，如此既可以體現(xiàn)各個(gè)色彩的優(yōu)勢，還可以避免印刷墨層受到摩擦損傷。

　　We should pay attention to the process design of overprint sequence, for example, when printing black text, letters or lines on yellow or red background, black text, letters or lines should be printed first, and then yellow or red background should be printed on them. This can not only reflect the advantages of each color, but also avoid frictional damage to the printing ink layer.