In printing, how can we choose the same paper and ink without considering other technological problems? The gloss of some printed products is quite different. If we don't use the coated film after printing, there are many ways to improve the gloss of printed products

　　

　　光澤，作為視覺信息的一種，能對人的心理狀態(tài)，情緒等許多精神方面產(chǎn)生重要影響，所以人們對于顏色的研究很早就開始了，對于客戶來說，一件印刷品上的某個(gè)商品是需要有光澤，除工藝做上去的光澤，那么光在印刷上是否能體現(xiàn)出來，我們也來了解一下。

　　

　　Gloss, as a kind of visual information, can have an important impact on people's mental state, mood and many other spiritual aspects, so people's research on color has been started very early. For customers, a certain product on a printed matter needs to be glossy. In addition to the glossy process, whether the light can be reflected in the printing, we also want to know.

　　

　　1、改進(jìn)酸性潤版液。

　　

　　1. Improve acid fountain solution.

　　

　　以銘酸、磷酸為主，酸性越強(qiáng)，對油墨連接料和顏料的分解力，腐蝕了越大，致使印跡膜面粗糙，降低了光澤。

　　

　　The stronger the acid is, the more corrosive it is to the ink binder and pigment, resulting in the rougher surface of the imprinted film and lower gloss.

　　

　　2、降低油墨乳化度。

　　

　　2. Reduce ink emulsification.

　　

　　膠印中的油墨乳化過度大都是操作中水大墨多造成的，印跡看上去墨層很厚，但油墨分子成水包油的狀態(tài)，干燥后光澤性非常差，而且還會產(chǎn)生一系列其它故障。水大墨多是膠印中比較犯忌的做法。

　　

　　The ink emulsification in offset printing is mostly caused by the large amount of water and ink in the operation. The ink layer looks very thick, but the ink molecules are in the state of oil in water. After drying, the gloss is very poor, and a series of other faults will occur. Water ink is more taboo in offset printing.

　　

　　3、油墨中適當(dāng)?shù)募虞o助劑。

　　

　　3. Add appropriate auxiliary agent in the ink.

　　

　　在油墨中適當(dāng)?shù)募虞o助劑，可以調(diào)節(jié)油墨的印刷適性，以便順利印刷，絕大部分輔助劑對于成品光澤都會帶來不利影響，例如防粘劑，防粘劑主要原料為六谷粉，加入油墨后，印跡膜層表面由于玉米粉的析出而變的粗糙，成品光澤性就差。

　　

　　The printing suitability of the ink can be adjusted by adding auxiliary agent properly in the ink, so as to print smoothly. Most auxiliary agents have adverse effects on the gloss of the finished product, such as anti adhesion agent. The main raw material of anti adhesion agent is Liugu powder. After adding the ink, the surface of the imprinted film becomes rough due to the precipitation of corn flour, and the gloss of the finished product is poor.

　　

　　4.正確使用燥油。

　　

　　4. Use dry oil correctly.

　　

　　在工藝操作中，正確地使用燥油，對于成品形成光澤非常有利。這是因?yàn)榧垙埼者B結(jié)料需要一定的時(shí)間，在此過程中，盡快使連結(jié)料凝聚，直結(jié)膜干燥，是成品光澤好的關(guān)鍵。

　　

　　In the process operation, the correct use of dry oil is very beneficial for the finished product to form luster. This is because it takes a certain amount of time for the paper to absorb the binder. In this process, it is the key to make the binder condense as soon as possible until the conjunctiva is dry.

　　

　　5. 注意噴粉。

　　

　　5. Pay attention to dusting.

　　

　　噴粉同油墨一樣，也會產(chǎn)生凝聚，特別是密封不好的袋裝或桶裝，噴粉受潮后，凝聚成較大的顆粒，噴到濕墨印跡上，使墨層表面結(jié)膜粗糙，降低了原有的光澤，因此噴粉要注意防潮。

　　

　　Dusting, like ink, will also produce condensation, especially in bags or barrels with poor sealing. When dusting is damped, it will condense into larger particles and spray on the wet ink mark, making the conjunctiva on the surface of the ink layer rough and reducing the original luster. Therefore, dusting should pay attention to moisture-proof.

　　

　　6. 正確調(diào)節(jié)機(jī)器。印跡墨層厚度是否達(dá)到標(biāo)準(zhǔn)，對于光澤也有影響。例如壓力調(diào)節(jié)不良，網(wǎng)點(diǎn)擴(kuò)大率高，墨層厚度達(dá)不到標(biāo)準(zhǔn)，成品光澤就稍差。

　　

　　6. Adjust the machine correctly. Whether the thickness of imprinted ink layer meets the standard also has an impact on the gloss. For example, poor pressure regulation, dot expansion rate, ink layer thickness does not meet the standard, the finished product gloss is slightly poor.

　　

　　印刷壓力也是印跡良好的轉(zhuǎn)移關(guān)鍵，壓力過大，印跡擴(kuò)大，光澤度弱，壓力過小，印跡不清晰，造成印品無光澤等，以上這些都是在印刷當(dāng)中的一些細(xì)節(jié)方面需要注意的地方，正確的調(diào)節(jié)機(jī)器，印跡墨層厚度是否達(dá)標(biāo)等，對于光澤也是有影響的。

　　

　　Printing pressure is also the key to the transfer of good imprint. If the pressure is too large, the imprint will expand, the gloss will be weak, if the pressure is too small, the imprint will not be clear, resulting in the matte of the printed product, etc. These are some details that need to be paid attention to in the printing. Correct adjustment of the machine and whether the imprint ink layer thickness meets the standard also have an impact on the gloss.