The so-called color matching is to combine more than two colors, or use a small amount of colors in addition to the main color to form a color combination. When preparing color ink before use, first expose the color to be prepared on the color sample separately, and correctly distinguish whether the color of the original (or original) color is the primary color, intermediate color, or multiple color. If it is an intermediate color or a compound color, it is necessary to distinguish the ratio of the main color to the auxiliary color. Secondly, it must be adjusted according to the color indicated by the original, and the sample is debugged. When the color difference between the color and the original is small or equal, it can be deployed in large quantities, and the time should be short and the amount should be adjusted appropriately. Too little adjustment will cause downtime and the ink color will be different, which will affect the normal production. Too much will cause unnecessary waste. Ink adjustment is usually carried out in a place where the light is stable or the light is not directly irradiated.
There are three points to note when grading screen printing ink: a. When mixing inks, try to add as few inks of different colors as possible. The fewer the types of colored inks, the better the mixing effect. b. Adopting the principle of "from light to deep", no matter preparing light or bright color inks, when the hue is close to the model, be careful. It is better not to mix and call inks produced by different manufacturers. Try to use inks of different colors from the same manufacturer for color mixing. Otherwise, uneven color tone will occur. In severe cases, condensation will occur and the ink will be scrapped. c. Some screen printing inks are dried by drying, lighter colors are lighter than undried ones, and darker colors are darker after drying. In addition, whether the color tone of the ink is different before and after drying during printing is a problem that is easily overlooked. Generally speaking, through natural drying (solvent volatile ink), the substrate is plastic, metal, paper, glass, etc., the color will not change; but if the color is used for ceramics, it will only develop color after burning and oxidation , Can only be adjusted based on experience. For silk screen inks that are dried by heat-setting and light-setting, the color changes in depth, as mentioned above. When the amount of ink adjustment is large, you can use the ink adjustment machine to complete the color adjustment in a short time.
The preparation of light-colored inks is generally based on white inks, with appropriate color inks. Such as light blue, mainly white ink, slightly blue (cyan); light red, mainly white ink, slightly more red; gray, mainly white ink, slightly black; silver gray, mainly white ink, slightly Add silver powder paste, and then add trace black ink. When preparing light-colored screen printing ink (printing material), white ink should be added as little as possible, because white ink has high activity and it is easy to cause discoloration of other colors.
Screen printing workers must adjust the ink, must do: a. Understand the various specifications and performance of ink; make the matched ink suitable for production needs. b. Master the basic knowledge of chromology and use it freely in ink adjustment. c. Analyze the printing color and process technology to find out the color sequence of multiple sets of colors, so as to avoid the color sequence is wrong, the two colors are mixed, and the color changes. d. Pay attention to the brightness of the ink color when adjusting the ink. It is required that the brightness should be adjusted with the original color as much as possible. Otherwise, the transferred ink will be "grey" and reduce the original color brightness.
Pet Toys
This catagory includes:
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Dog Interactive Toys
Cat Interactive Toys
Bird Toy
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