印刷技術是圖文信息的復制技術,印刷品是傳播科學文化知識的信息載體。印刷品是文字、圖像的載體,信息傳遞的工具,文化傳播的媒介,藝術作品的再現,美化包裝的方式,商品宣傳的手段,逐漸成為我們生活中不可缺少的一部分。下面和
濟南印刷廠一起來看下印刷的兩大特性:
Printing technology is the reproduction technology of graphic information, and printed matter is the information carrier of spreading scientific and cultural knowledge. Printed matter is the carrier of words and images, the tool of information transmission, the medium of cultural communication, the reproduction of art works, the way of beautifying packaging and the means of commodity publicity, which has gradually become an indispensable part of our life. Let's look at the two characteristics of printing with Jinan printing factory:
1、復制性
1. Replicability
印刷業作為一種特殊的加工工業,其任務是復制原稿中的圖文信息,原稿是印刷作業的依據和基礎。從信息角度上看,印刷過程是模擬信息的數字化(A/D轉換)-數字信息處理-數字信息模擬再現(D/A轉換)的過程。
As a special processing industry, the task of printing industry is to copy the graphic information in the original, which is the basis and foundation of printing operation. From the perspective of information, printing process is a process of analog information digitization (A / D conversion) - digital information processing - digital information analog reproduction (D / a conversion).
2、藝術性
2. Artistry
印刷術是技術與藝術的結晶,復制原稿的過程,也是藝術加工的過程。印刷從業人員應具有一定的藝術賞析能力,需準確的把握原稿的藝術特點和風格,采用恰當的復制手段和工藝方法,再現原稿的魅力,并通過圖像處理增加其藝術表現力。
Printing is the crystallization of technology and art. The process of copying the original is also the process of art processing. Printing practitioners should have a certain ability of art appreciation, accurately grasp the artistic characteristics and style of the original, adopt appropriate copying means and process methods, reproduce the charm of the original, and increase its artistic expression through image processing.
印刷廠隨著社會的發展,發展空間在不斷的提升,當我們在印刷的時候顏色的地位是非常高的,而工作人員需要具備顏色處理的方法,下面就給大家介紹一下做好顏色的處理:
With the development of society, the development space of the printing factory is constantly improving. When we are printing, the position of color is very high, and the staff need to have the method of color processing. The following is to introduce how to do a good job in color processing:
一、印刷過程中
1、 During the printing process
1、出現墨色不實的原因很多,其涉及的因素也很多,包括紙張的性能、油墨的性能、印版的質量、印刷橡皮布 的質量、印刷壓力、印刷機的性能和印刷工藝等方面。
1. There are many reasons for false ink color, including paper performance, ink performance, printing plate quality, printing blanket quality, printing pressure, printing press performance and printing process.
2、如果紙張、油墨的性能穩定,印版制作質量滿足了印刷要求,印刷機工作性能相對穩定的話,還是出現了墨色印刷不實現象,其主要產生的原因就是印刷壓力的問題了。
2. If the performance of paper and ink is stable, the quality of printing plate meets the printing requirements, and the working performance of the printing press is relatively stable, the ink printing is not true. The main reason is the printing pressure.
二、在平版膠印過程中常會碰到顏色印不實的現象,在印刷品上主要表現為印品實地部分有斑點或發虛,圖文或線條殘缺不全,圖像的階調層次再現性差或網點丟失。
2、 In the process of offset lithography, we often encounter false color printing. On the printed matter, it is mainly manifested as spot or void in the field part of the printed matter, incomplete graphics and lines, poor reproducibility of image gradation or dot loss.
三、在膠印中
3、 In offset printing
1、壓力的大小直接決定了印刷過程中油墨的轉移,如印刷過程中出現局部的壓力不均,將導致印刷墨色的不實。
1. The size of the pressure directly determines the transfer of ink in the printing process, such as local uneven pressure in the printing process, will lead to the printing ink color.
2、由于橡皮滾筒安裝在印版滾筒和壓印滾筒之間,橡皮布上的每個微小單元每旋轉一周,都要分別和兩個滾筒各接觸一次。
2. Because the rubber cylinder is installed between the plate cylinder and the impression cylinder, each tiny unit on the blanket has to contact with the two cylinders respectively once every rotation.
3、油墨的轉移就是橡皮布壓縮變形的結果,橡皮布的壓縮變形是產生壓力的根本保證,因此,壓力的大小及均勻程度與膠印印刷用的橡皮布有著直接聯系。
3. The transfer of ink is the result of blanket compression deformation, which is the fundamental guarantee of pressure. Therefore, the size and uniformity of pressure are directly related to the blanket used in offset printing.
4、其受力是周期性變化的,正是由于橡皮布受力的周期性變化,會導致橡皮布產生內耗,導致橡皮布的老化,影響印刷壓力的均勻性,可能導致橡皮布的報廢。
4. The stress changes periodically. It is precisely because of the periodic change of the stress of the blanket that the blanket will produce internal friction, lead to the aging of the blanket, affect the uniformity of the printing pressure, and may lead to the scrap of the blanket.
5、橡皮布在壓印力的作用下,具有很好的將印版圖文部分的油墨傳遞到承印物表面的能力,即受墨和釋墨能力,但是橡皮布的老化會改變這種油墨傳遞的能力,也會導致墨色不實的現象。
5. Under the effect of the impression force, the blanket has a good ability to transfer the ink of the graphic part of the printing plate to the surface of the substrate, that is, the ability to receive and release the ink. However, the aging of the blanket will change the ability to transfer the ink, which will also lead to the phenomenon of false ink.
6、包覆在滾筒上的橡皮布,受到張緊力和壓力的作用,隨著滾壓次數的不斷增加,橡皮布壓縮變形的應力積累會變得硬挺,失去原有的柔軟性和高彈性,甚表面會出現光亮或龜裂的痕跡,從而導致壓力的局部不均勻。
6. The blanket wrapped on the drum is under the action of tension and pressure. With the increase of rolling times, the stress accumulation of blanket compression deformation will become stiff, lose its original softness and high elasticity, and even appear bright or crack marks on the surface, leading to local uneven pressure.
Thank you for your reading. I hope the above contents will be helpful to you. If you want to know more wonderful contents, please click our official website: Jinan printing factory http://www.seven2000.com .