Any color in the natural world is composed of three primary colors, so theoretically speaking, it is possible to print realistically restored images using the cyan, magenta, yellow, and three color plates, but due to various factors, the three primary color prints are difficult to achieve. This point. Therefore, four-color printing is usually used in printing practice, namely three primary colors plus black. In recent years, in order to restore the colors more vividly in the world, six-color printing and seven-color printing have been developed on the basis of four-color printing. The principle is to combine the colors of orange, purple, and green on a four-color basis. Separated to achieve high fidelity by reducing grayscale in printing. In order to differentiate from spot color printing, we usually refer to the original color printing (which can be understood as reducing color printing) by performing the color separation of natural color patterns by optical or digital technology. It is related to optics and color science. The concept of primary colors (only three primary colors) is different.
It is worth mentioning here that primary color printing and spot color printing are not incompatible. In the international community, the latest development of color printing is the combination of primary colors and spot colors for primary color printing, which has played both the strengths of both, complement each other, and has a more advanced printing effect, belonging to fine print. This has also been given permission to play in T-shirt printing. The author once saw a U.S.-made T-shirt with a total of 12 colors. In addition to the four primary colors, there are eight sets of spot colors. In addition to gold and silver and other colors, there are foam printing and crystal pulp printing. It's amazing not only that it has a strong sense of three-dimensionality, but also that it shines in a particular part. 
Professional T-shirt designers usually design according to the principle of spot color or primary color. After obtaining such a design draft, they can perform color separation according to their requirements. However, there are also non-spotted designers or customers who only provide originals such as various pictures or drawings and require them to be printed on T-shirts. In this situation, we must communicate with designers and customers: First of all, we must understand their creative intentions and what kind of effect they want to express. Is it better to use spot-color printing or primary color printing to achieve this effect? Even the original color printing? At this time, it is necessary to provide them with T-shirts with different printing methods so that they can understand and select them. Secondly, they should tell them about the production cost of spot color printing and primary color printing so that they can make decisions based on their investment plans.
2. Separation of manuscripts
Separation of manuscripts is used to produce the corresponding separation screens. One of its quality requirements is that the light transmission performance of the substrate is good, the second is the high shading density of the image, and the third is the alignment accuracy between the dichroic sheets, and the edges of the image lines are clean and tidy, and the outlets are full and clear.
(1) Multi-color separations The positioning of cross-sections is generally based on crosshairs, but it is often easy to reverse the separations during the printing process, or to make mistakes on the front and back, or to turn the graphics upside down. We use left-rights. Right oblique method to position the crosshairs, that is, the left is +, the right is x, so that eliminate errors.
(2) Red tear film can be replaced with red self-adhesive paper because it is expensive and not easily available. As long as the red self-adhesive paste only on the PVC film (on the original or linework), you can use a carving knife to draw. Since the transparency of the red self-adhesive paper is far less than that of the red tear film, the light of the lighting drawing table should be brighter. In this way, you can achieve low prices, good shading effect, and clean lines, not afraid of water, even more wonderful is to modify the convenience - as long as the re-engraving can be removed, and red tearing can not be re-engraved, ink painting Only minor changes can be made.
(3) If the two printing plate patterns are not connected or overprinted, consider drawing two color drafts on one film, printing two plates at the time of printing, and closing the B pattern and B plate of the A plate. A pattern. It is even possible to burn a plate, add an ink strip between AB patterns, and print two colors at once.
3. Manual production
Manual drafting is the most basic traditional method, mainly manual drawing and manual drafting.
Hand-made drafting tools mainly include: light drawing table (OA table), drawing ink pen, drawing compass, triangle board, curve board, knife, steel ruler, drawing PVC film, PCV film ink, red tear film, red Self-adhesive paper and so on.
For manual production, there must first be a light drawing table. The light source is generally a fluorescent lamp. If an incandescent lamp is used, a frosted glass or a layer of copy paper under the glass should be used so that the light is soft and does not hurt the eyes. If you need to trace at home or in a temporary place, the emergency method is to put a square stool on the ground. Put a piece of glass on the four stool legs and put a table lamp below. Then you can use it.
Drawing ink pen, more use of needle pen, pen head diameter of 0.2 ~ 1.3mm. To prevent the tip of the pen, insert a piece of hollow cotton (or sponge, etc.) into a bottle, add half a bottle of water, and insert the pen into the bottle when the drawing pen is disabled. This will stop the tip of the pen from plugging.
Steel rulers are used to make red tear film and self-adhesive paper. When drawing with a triangular plate, curved plate, etc., the bevel face should be face down to prevent the ink from being dragged by the ruler edge.
It is worth mentioning here that primary color printing and spot color printing are not incompatible. In the international community, the latest development of color printing is the combination of primary colors and spot colors for primary color printing, which has played both the strengths of both, complement each other, and has a more advanced printing effect, belonging to fine print. This has also been given permission to play in T-shirt printing. The author once saw a U.S.-made T-shirt with a total of 12 colors. In addition to the four primary colors, there are eight sets of spot colors. In addition to gold and silver and other colors, there are foam printing and crystal pulp printing. It's amazing not only that it has a strong sense of three-dimensionality, but also that it shines in a particular part. 
Professional T-shirt designers usually design according to the principle of spot color or primary color. After obtaining such a design draft, they can perform color separation according to their requirements. However, there are also non-spotted designers or customers who only provide originals such as various pictures or drawings and require them to be printed on T-shirts. In this situation, we must communicate with designers and customers: First of all, we must understand their creative intentions and what kind of effect they want to express. Is it better to use spot-color printing or primary color printing to achieve this effect? Even the original color printing? At this time, it is necessary to provide them with T-shirts with different printing methods so that they can understand and select them. Secondly, they should tell them about the production cost of spot color printing and primary color printing so that they can make decisions based on their investment plans.
2. Separation of manuscripts
Separation of manuscripts is used to produce the corresponding separation screens. One of its quality requirements is that the light transmission performance of the substrate is good, the second is the high shading density of the image, and the third is the alignment accuracy between the dichroic sheets, and the edges of the image lines are clean and tidy, and the outlets are full and clear.
(1) Multi-color separations The positioning of cross-sections is generally based on crosshairs, but it is often easy to reverse the separations during the printing process, or to make mistakes on the front and back, or to turn the graphics upside down. We use left-rights. Right oblique method to position the crosshairs, that is, the left is +, the right is x, so that eliminate errors.
(2) Red tear film can be replaced with red self-adhesive paper because it is expensive and not easily available. As long as the red self-adhesive paste only on the PVC film (on the original or linework), you can use a carving knife to draw. Since the transparency of the red self-adhesive paper is far less than that of the red tear film, the light of the lighting drawing table should be brighter. In this way, you can achieve low prices, good shading effect, and clean lines, not afraid of water, even more wonderful is to modify the convenience - as long as the re-engraving can be removed, and red tearing can not be re-engraved, ink painting Only minor changes can be made.
(3) If the two printing plate patterns are not connected or overprinted, consider drawing two color drafts on one film, printing two plates at the time of printing, and closing the B pattern and B plate of the A plate. A pattern. It is even possible to burn a plate, add an ink strip between AB patterns, and print two colors at once.
3. Manual production
Manual drafting is the most basic traditional method, mainly manual drawing and manual drafting.
Hand-made drafting tools mainly include: light drawing table (OA table), drawing ink pen, drawing compass, triangle board, curve board, knife, steel ruler, drawing PVC film, PCV film ink, red tear film, red Self-adhesive paper and so on.
For manual production, there must first be a light drawing table. The light source is generally a fluorescent lamp. If an incandescent lamp is used, a frosted glass or a layer of copy paper under the glass should be used so that the light is soft and does not hurt the eyes. If you need to trace at home or in a temporary place, the emergency method is to put a square stool on the ground. Put a piece of glass on the four stool legs and put a table lamp below. Then you can use it.
Drawing ink pen, more use of needle pen, pen head diameter of 0.2 ~ 1.3mm. To prevent the tip of the pen, insert a piece of hollow cotton (or sponge, etc.) into a bottle, add half a bottle of water, and insert the pen into the bottle when the drawing pen is disabled. This will stop the tip of the pen from plugging.
Steel rulers are used to make red tear film and self-adhesive paper. When drawing with a triangular plate, curved plate, etc., the bevel face should be face down to prevent the ink from being dragged by the ruler edge.
A trash can with a swing top lid has a lid that you need to push by hand. So this is also a manual trash can. Some swing cans have lids with a spring, so it closes right after you remove your hand. Choose the right Trash Bins you need. Or you can contact us for OEM. We are the professional manufacturer for metal and plastic products. Some of our products are CE/ SGS certified.
push trash can,hands free trash can,table trash can,garage can,manual trash can
TAISHAN YUEXIN INDUSTRIAL GROUP LIMITED , https://www.gdmetalproducts.com