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Viscosity is an important index of ink rheology.In printing, a certain viscosity is the main condition to ensure the normal transfer and uniform transfer of ink.It is related to whether the printing process can proceed smoothly, and directly affects the uniformity, clarity and gloss of the imprinting ink, and also relates to the viscosity, fluidity, yield value, thixotropy, drawing and other prope...
The allocation of ink hue is an important work before printing, and it is also a very abstract work.Simple color materials three primary colors, yellow, magenta, green can be deployed into red, orange, yellow, green, blue, purple and other dozens of colors. In the actual deployment process, only by the three primary colors of ink can not get the required color, this is because the ink manufacturer...
With the rapid development of printing and packaging industry, the appearance design of products is becoming more and more high-end. The composite technology used in modern exquisite printing mainly includes: paper printing and plastic film composite and plastic printing and plastic film composite, that is, paper-plastic composite and plastic-plastic composite.As a new type of packaging material, ...
With the progress of science and technology, the printing technology industry is also developing rapidly, and more and more adhesives are used in the packaging and printing industry, and more and more varieties are also available. The film coating process is widely used in a variety of packaging, small to medicine boxes, crafts boxes, large to outer boxes and various product packaging. Some coatin...
In gravure printing, ink resolubility is also a key indicator to test the performance of ink. Especially in the color ink printing, the moderate resolubility can not only make the color fully displayed, but also solve the problem of shallow plate mesh blocking and overprinting cross-color. In color ink printing, according to the different hue requirements, the depth of the ink hole mesh of the pri...
After the ink is stored for a period of time, the upper part of the ink appears thin in the container, the viscosity is small, and the color and concentration are relatively poor; The lower part is thick, the viscosity is large, and the color and concentration are also relatively good. Intaglio printing inks are thin and have a small viscosity, because the pigment is poorly dispersed in the connec...
In order to prevent ink delamination and pigment precipitation, users must be fully stirred before printing. The following summarizes the faults and elimination methods of screen printing ink in use for your reference. 1.Poor adhesion: the reason is improper selection of ink, insufficient pre-press treatment, impurities in the substrate, insufficient drying temperature, insufficient time, improper...
The main difference is that the nature is different, the production process is different, and the characteristics are different, as follows: First, the nature is different 1.Flexo printing Flexo printing is a direct printing method known as flexo printing because of the use of elastic, raised image plates. 2.Gravure printing Gravure refers to gravure printing, first the printing plate on the exces...
The performance requirements of water-based varnish for printing paper glazing are as follows: 1.The film has good environmental resistance. Some of the printed matter after glazing is used to make all kinds of packaging cartons, in order to be able to play a good protective effect on the packaged products, the environmental resistance of the glazing film layer must be better. For example, the pac...
Ink scraping is not clean troubled many manufacturers, there are ten reasons for scraping is not clean, save it for use! 1.Ink viscosity is too high When the viscosity of the ink increases, the surface tension also increases correspondingly, and the force between them also increases, so that the scraper will increase the impact force of the ink on the scraper in the contact process with the ink, d...
Water-based ink is referred to as ink, and flexible water-based ink is also known as liquid ink, which is mainly made of water-soluble resins, organic pigments, solvents and related additives by composite grinding processing. Water-based ink is especially suitable for tobacco, wine, food, beverages, medicines, children's toys and other packaging and printing products with strict sanitary condition...
Paper ink absorption is not only related to the degree of porosity and capillary state of the paper, but also related to the surface properties of the paper fiber, the content of fillers, pigments, adhesives, ink composition and characteristics, printing methods, printing pressure and other factors. In actual printing, the absorption of ink by paper can be divided into two stages. The first stage ...
Rubber mold, silicone mold, shoe mold, latex pillow mattress mold, anti-stick easy mold Teflon spray, good model flon coating, non-stick mold surface treatment process The role of mold coating Molds are common tools in the manufacturing industry and are used to make a variety of products. In order to capture the service life and production efficiency of the mold, people often coat the surface of t...
The most important difference between non-stick cookware and ordinary cookware is that the surface is coated with a layer of non-stick paint, and the Teflon non-stick cookware commonly used on the market is to coat the main raw material of fluorinated resin such as polytetrafluoroethylene coating on the metal surface such as aluminum, copper or iron, and through sintering. Properties of NI-PTFE co...
The final state of waterborne polyurethane is a solid film. During the process from emulsion to solid film, accompanied by the evaporation of water and the concentration of water dispersion, the latex particles are close to each other. Before the solid content reaches 74%, the dispersion particles can move in the continuous phase of water. Under the influence of water/air interfacial tension, the ...
①The residual ink is converted into gray black ink According to the principle of color science, the complementary color of the ink mixed together, its hue will become gray black (red + green, yellow + blue-purple). Therefore, we can use this principle to deploy the complementary ink into gray-black ink by deploying the special color ink, and add it to the black ink in a certain proportion to use i...
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