As a main way of advertising communication, newspaper advertisements are widely known and widely used by all walks of life, but most of the advertisement design and production staff do not understand the way newspapers are printed. In design, it is simple. Focus on subjective visual effects, and deliver the designed data files directly to the newspapers for typographical printing. The comrades of the newspaper advertising department have some understanding of the post-printing process, but they dare not easily change the documents sent by the customers, so that when printing The problem came out. Because the surface of the newsprint is rough, the sizing degree is low or not, the ink penetration is strong, the dot is enlarged, and the overprinting rate is low. Therefore, when printing advertisements, there is always a problem that is difficult to track.
At present, the main problems in the advertisement printing of our newspapers are as follows: First, the mid-tone adjustment of some outlets is serious, resulting in easy color shift; second, the replacement of ash components is insufficient, and the color blocks are not easy to be uniform when four-color overprinting; As the total amount of ink is limited, the sputum is serious, and the fourth is that the small characters are difficult to register. This seems to be a few problems, but the analysis is a problem, that is, there is no targeted selection setting in the image processing output. Because most companies only make one data file when making advertisements, the same design manuscript has passed many ways to spread the advertisement, such as billboards, journals, magazine advertisements, newspaper advertisements, or self-published publications. Among these modes of communication, the mediums used vary widely, such as billboards, most of which use inkjet printing (or large-format printing), while journals, magazines, etc. are the same as flat media, but the paper used is large. Different, there are coated paper, offset paper, newsprint, and now lightly coated paper. Different papers have different printability, and advertising designers often ignore this, so we often see the same advertisement. The color, clarity, and visual impact of the design manuscript in different flat media vary greatly. The advertisements of Toyota Yaris and Toyota New Camry can be used as examples in this article. Both of these car advertisements use the full version of black as the background. Perhaps it is necessary to highlight a kind of effect that is born to enhance the visual impact on readers. From the soft proofing of the screen, the total value of CMYK four color values ​​is up to 380. This is printable for coated paper, but for newsprint, the total ink volume can only reach 260, so it is difficult to get dirty. Avoiding, at the same time, because the overprinting rate is low, the color block printing is not easy to be uniform, and the printing effect is not satisfactory.
So, can this status change be changed? We believe that it is impossible to have different color difference between different printing materials, but we can minimize this color difference. One way is to strengthen the advertising design and production staff. The understanding of post-process printing knowledge, after the design of the advertising manuscript is designed, save different data files according to different papers, the difference is: in the image processing software, in the setting of color separation parameters, different inks for different papers Set different standards, such as ink with American standard, European standard, Japanese standard; paper is divided into coated paper, non-coated paper, news paper, etc., and different dot enlargement rate and gray component are set for different papers. Instead of GCR, the background color is removed from the UCR, or the background color gain is UCM, and the total ink amount limit and the black version maximum amount are set.
The specific operation is: open the PHOTOSHOP software, click "Edit - Color Settings", select the "Settings - Custom" workspace item in the pop-up window, the RGB column is selected according to the display used, and the "CMYK item" is selected as "Custom". “CMYKâ€, in the lower menu, “Ink Color†and “Dot Expansion†in “Ink Optionsâ€, select “COATED, UNCOATED, depending on whether the printing material used is coated or uncoated paper or newsprint. NEWSPRINT" option, the dot enlargement is based on the different paper settings above, there are selectable curve items for accurate measurement of the printed matter, and the predetermined percentage of the expansion percentage of different dots is determined, but the standard item without this condition can be selected, but if For newsprint printing, the percentage value after the printing needs to be 25% to 30%. In the "separation" option, the color separation type selects "GCR" or "UCR" according to different printing materials, and newsprint printing generally selects GCR, black version. Produce the selection "Medium", the black ink limit value is 100 or 85, the "Toner Total Limit" item, if the coated paper is printed as 400, the non-coated paper is printed as 300, new Paper printing takes 260, and if the total amount reaches 260, then the black ink limit value should be 85 at this time. The UCA value is generally used when the coated paper is printed to increase the thickness of the ink layer, and when printing on non-coated paper. Take 0". This way we can get design manuscript data files for different substrates, and deliver different documents for different advertising channels.
The following three cases are analyzed.
Case 1 The ink is European standard, the paper is coated paper, and the dot gain ratio is 9% at 50%, GCR treatment. However, the black plate is produced as 0, so the total ink amount is up to 400, and there is no black ink limit. The UCA value is appropriate according to different conditions, which is applicable in the case of coated paper, ie, coated paper.
Case 2 The ink is Japanese standard, and the paper is uncoated paper. At this time, the dot gain value at 50% is 15%, and the GCR is processed. The black version can be selected from "low" or "medium" depending on the situation, the black ink is limited to 100, the total ink limit is 300, and the UCA number is zero.
Case 3 The ink is in the US standard, the paper is newsprint, and the 50% outlet is expanded by 30%, GCR processing. The ink plate is produced as "medium" or more, the black ink is limited to 100, the total ink amount is limited to 260, the UCA number is 0, and the newsprint has an additional condition, that is, when the total amount of CMYK four-color ink reaches 260, black The version cannot exceed 85%.
The same manuscript is set by using the above three different color separation parameters, and the GCR (UCR, UCM) substitution amount is changed. When making the plate, the percentage of the dot area suitable for different paper printing can be produced, which is for different paper printing. The inadequacy of outlets and the compensation made in the prepress stage, such as the replacement of newsprint printing, can replace some four-color overprinting into three colors or even two-color overprinting, which is the color reproduction and registration of the production process. It is much more beneficial, and it is precisely because of these ideas that we have a professional color management system that we are now thriving.
Through the above analysis, we can get 9 combinations of ink (US, Europe, Japan) and paper (coated, uncoated, newsprint), plus more and more commercial rotations. Lightly coated paper, there are 12 combinations, that is, the same advertisement should save 12 kinds of data files, which is cumbersome. We can determine the ink standard according to which ink is commonly used, and then save it according to different papers. Coated paper printed documents, non-coated paper printed documents, light coated paper printed documents and newsprint printed documents, a total of four file versions are placed on different advertising communication carriers, thereby ensuring the same advertising in various paper printing effects Probably close, technically, this is a very simple technique, and the problem is that most of the current advertising design and production staff do not pay attention to this problem because they do not understand the printing process, or from a customer's point of view, When delivering a product, the printing factory must print out the effects he needs, which are printed on some high-end or beautiful advertisements. There is no impact on the products, but there are many hidden dangers for newspaper printing. How to strengthen communication between the relevant departments of the newspaper and advertisers, and solve the problem from the technical level has become an important way, and from the newspaper itself, in the current financial In the context of the crisis, how to use the existing technology to speed up the data process of the entire process, improve the ability to cope with various possible problems, avoid the sharp shrinkage of the advertising market, and meet the increasingly high quality requirements of customers, is also imminent Things.
Article source address: http://
Mole Traps,Metal Mole Trap,Professional Mole Trap,Metal Scissor Mole Trap
Hebei Liebang Metal Products Co.,Ltd , https://www.lb-animaltraps.com