PS What format is used to output images into the middle? What format do you want to be transparent?

PS What format is used to output images into the middle? What format do you want to be transparent?
The graph resolution in PS is 300, and the output is merged to me in TIFF format (not compressed) and then imported to CD.
Q: 1. Will the effect be good?
A: 300DPI is no problem
2. And what amplitude should I zoom out of these images in the CD? Does zooming in and out make the gradient streaked?
Answer: Try to minimize zooming, zooming out is not a big problem, magnifying more than 1.5 times will make the image quality worse, the larger the more obvious
3. What format should I use for transparent images?
It is better to have a transparent image in the CD, or a PSD, but not to rotate or flip it, otherwise the hair row will lose information
The most important question: I use CMYK mode when processing graphics in PS, will there be any color changes when I output to TIFF format? Will it change again when it is imported into a CD?
A: There will be no changes
What is color separation? Generally, I have heard that the samples made are taken back by others to separate the colors before they can be made into films, what kind of process is this? THE SO-CALLED COLOR SEPARATION PLOTTING REFERS TO THE FOUR CHANNELS OF CMYK IN PHOTOSHOP? Also, what is it like to use CDs to make films?
Answer: Color separation is a professional term in printing, which refers to the decomposition of various colors on the original manuscript into four primary colors: blue (C), red (M), yellow (Y) and black (K); In computer print design or graphic design image software, color separations work by converting the color mode of a scanned image or an image from another source to a CMYK mode. If you want to print, you must separate the colors and divide them into four colors: yellow, magenta, cyan, and black, which is the requirement of printing. If the image color mode is RGB or Lab, there is a chance that only the K plate will have dots on the output. Color separations are actually very simple: just convert the image color mode to CMYK mode. When the image is output to the film, the dots will be generated according to the channel data of the color, and it will be divided into four color separation film films: yellow, magenta, cyan, and black.
In general, each color check can correct whether it needs to be hollowed out or embossed. Film is generally output in four colors: blue (C), red (M), yellow (Y), and black (K), each with a film. CD is a typesetting and drawing software (full name: CorelDRAW8/9/10.0/11.0)
What does registration mean?
Because printing uses four color plates to achieve color reproduction, the position of the four color plates can be accurately aligned by registering. In the design draft, you can make some crosshairs or crosshairs yourself, and some software can automatically generate alignment marks on the four color plates.
Problems with the spine
Generally, the positive picture and text are done first, and the spine is empty at the end. Or you can calculate the size of the spine by how many P numbers are needed, the thickness of the paper, or you can measure it with a ruler.
What is a network cable?
A network cable is the number of wires that are added to the network. The unit of expression is LPI, such as the general line can use 75~90 lines (75~90 lpi). 150~175 lines (150~175 lpi) for color offset printing. Because the previous network network was wired, it is customary to refer to all network encryption degrees as network cables. To be precise, the laser phototypesetting machine interprets the precision (resolution) of the digital file on the film. The so-called network cable is the clarity of printing, and we do the design to talk about the resolution, to represent the clarity of the image. The relationship between the network cable and the resolution is: 1.5 times the network cable is equivalent to the resolution (generally speaking).
Basics of print dots
In the printing process, the continuous blending of halftone images is adjusted by the density of the dots. By mixing the dots of the four colors of CMYK, an infinite number of colors can be expressed.
There are two main types of dots used in the printing process: AM dots (AM) and FM dots (FM).
Amplitude modulation outlets
AM dots are one of the most widely used. Its dot density is fixed, and the shade of color is expressed by adjusting the size of the dots, thus achieving a transition of tones. In printing, the use of AM dots mainly needs to consider factors such as dot size, dot shape, dot angle, and network line accuracy.
Dots size
The size of the dot is determined by the coverage of the dot, also known as the ink rate. Generally, it is customary to use "Cheng" as a unit of measurement, for example, outlets with 10% coverage rate are called "Yicheng outlets", outlets with 20% coverage rate are called "Ercheng outlets", in addition, outlets with 0% coverage rate are called "out-of-network", and outlets with 100% coverage rate are called "field".
The gradation of printed matter is generally divided into three levels: light tone, middle tone, and dark tone. The coverage rate of the outlets in the bright tone part is about 10%~30%; The coverage rate of the outlets in the middle part is about 40%~60%; The dark part is 70%~90%. The off-net and field sections are separately divided.
Dotted shape
The shape of the dots in printing is not only a single and single circle in everyone's imagination, but also the shape of the dots under the condition of 50% ink rate, which can be divided into: square, round and diamond.
The square dots are in the shape of a checkerboard at 50% coverage. Its particles are relatively sharp and have a strong ability to express layers. Ideal for lines, graphics, and some hard-toned images.
The circular dots are independent of each other in both light and midtones, and are only partially connected in the case of dark tones. Therefore, the performance ability of the mining level is not good, and it is rarely used in four-color printing.
The diamond dots combine the hard tones of the square dots and the soft tones of the round dots, and the color transition is natural, which is suitable for the expression of general images and photos.
Dots angle
In printing plate making, the selection of dot angle plays a crucial role. Select the wrong dot angle and interference fringes will appear.
Common dot angles are 90 degrees, 15 degrees, 45 degrees, and 75 degrees. The 45-degree outlet performs best, stable and not dull; The angular stability of 15 degrees and 75 degrees is a little worse, but the visual effect is not rigid; The 90-degree angle is the most stable, but the visual effect is too dull and aesthetically pleasing.
Two or more kinds of dots are set together, there will be mutual interference, when the interference is serious enough to affect the beauty of the image, it will appear commonly known as "turtle pattern".
Generally speaking, when the angle difference between the two dots is 30 degrees and 60 degrees, the overall interference fringes are still more beautiful; followed by a 45-degree dot angle difference; When the angle difference between the two dots is 15 degrees and 75 degrees, the interference fringes will detract from the image aesthetics