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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 resins that can be used for water-based gravure inks are acrylic resin, polyurethane resin, alkyd resin, etc. Each resin has different characteristics and application occasions, and needs to be selected according to the actual situation. First, water-based gravure ink overview Water-based gravure ink is an environmentally friendly ink, compared with traditional ink, its volatility is small, no...
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 ...
1.Ink The three primary color inks have different degrees of color bias, which will affect the color bias of the whole picture to different degrees. However, a small amount of color bias can be corrected from the ink preparation. When printing to grasp the gray balance of the ink used, the same amount of yellow, product, green do not produce neutral gray, they produce lighter, more turbidity with ...
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...
Pigment is the main component of ink, is a fine powder-like solid colored substance, can show ball, flake and other irregular shape. Generally, the diameter of pigment particles is in the range of several hundred nanometers to tens of microns (10-7~10-5m). The pigment can be evenly dispersed in the medium, but it is insoluble in the medium and does not react with the medium. Pigment is a colored b...
Aluminum foil can also be printed with water-based ink. As a non-absorbent substrate, aluminum foil poses a major challenge to water-based ink printing. However, some aluminum foil products that require food-grade printing cannot be printed with oil-based inks, so water-based inks have become the best choice. However, due to the poor absorption of aluminum foil to water-based ink, many inexperienc...
In the process of UV flexographic printing, the viscosity of the ink is one of the key factors that affect the printing quality and effect. Choosing the right viscosity UV flexographic ink is crucial to ensure printing quality and efficiency. When adjusting viscosity, it is usually necessary to consider many factors such as printing equipment, printing materials, image details and the expected pri...
Flexo is a flexible, high resolution, warped letterpress plate. In recent years, flexo printing has developed rapidly in the field of printing, and its development prospects are generally optimistic. Flexographic printing presses transfer the right amount of ink to the substrate through a unique mesh roller. The appropriate use of ink is directly related to the printing production operation and pr...
First, the principle of adding water-based ink additives When using water-based ink additives, there are some basic principles that need to be followed. First, the resin and ink should be combined first, and then additives are added. Secondly, the appropriate time and method of addition should be selected according to the type and use of the selected additives. Second, the right steps 1.With resin...
The application of water-based ink coating is very wide, mainly reflected in the following aspects: 1.Printing industry Water-based inks can be used to print a variety of paper and packaging materials, such as books, newspapers, magazines, posters, gift boxes, etc. All kinds of paper such as kraft paper, coated paper, thermal paper, Glasin paper, release paper and corrugated board can be...
sinograce chemical
Sinograce Chemical is professional technical enterprise providing solutions of surface materials and manufacturing of raw materials. Sinograce Chemical Company is composed of R&D center, Manufacture center, Quality control department, Market center and International trade department. We have been dedicating to research on excellent paint/coating, adhesive for over 15 years. And now still conti...
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