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Plastic film as the object of packaging printing, many kinds, and the use of printing also involves many aspects, so the variety of this kind of ink is extremely wide.In particular, this ink shall have the characteristics of fastness to adhesion printing effect processing tolerance and other requirements.The surface of plastic film is smooth, and the ink can not be permeated, so it must be printed...
Water-based flexible printing ink is made of water-soluble pigment and water-based additives by a series of process grinding.Flexo water-based ink is suitable for printing various plastic woven bags, plastic handbags, non-woven bags, paper labels, kraft paper bags, corrugated paper, etc.It is non-toxic and odor free, it is not only environmental protection and safety but also can save 30% of the p...
Self-adhesive label Is also called self-adhesive label material. It is a composite material made of paper film or other special materials, coated with adhesive on the back, and coated with silicon protective paper as the base paper.And after printing die - cutting and other processing into finished labels. Self-adhesive materials are usually printed and processed on the label linkage machine. The ...
Printing pressure has a great influence on printing quality.Maintaining an average and constant printing pressure in the effective printing area can not only make the printing ink uniform, small color difference, but also keep the size of the printing mark.It is feasible to achieve maximum flat flat printing printing pressure But because it is the manufacturing precision of printing plate flatness...
The difference between water-based gravure printing ink and other printing methods mainly lies in: its printing plate through corrosion or engraving, the formation of a lot of plate surface of different volumes of concave hole, known as the ink hole.The ink hole volume is large, the amount of ink filling in the printing process is large, and the ink layer thickness is transferred to the substrate....
Vacuum suction plastic is a kind of waterborne polyurethane adhesive, because it needs vacuum suction plastic machine to vacuum suction plastic so it is called vacuum suction plastic.It is widely used in the vacuum blister thermal composite of visible parts, such as polyvinyl chloride (PVC) and other soft materials and density board, particle board, wood and other vacuum blister molding, main...
Due to the printing speed is too fast, add too much, high hardness of tap water, ink solvent surface tension size is different, excessive circulation stirring and other reasons lead to the production of foam, ink texture is uniform to ensure printing quality, bubble is destroyed uniformity, will reduce production efficiency.After the foam overflow in the tank, the foam flows into the roller, wet t...
Ink printing with bright color, good adaptability, ink is a certain fluidity of paste adhesive, viscosity, negative, thixotropy, liquidity, dry decides the performance of ink, printing ink to add fertilizer, to improve the ink printing eligibility, such as viscosity, viscosity, dry, etc. With the development of printing technology, the variety of ink is increasing, and there are many methods of cl...
The fluidity of ink includes viscosity, adhesion, viscoelasticity, and yield value and thixotropy.It mainly depends on the nature of pigment and binder, and its manufacturing process, the content of binder directly affects the fluidity of ink. In the printing press, the flow phenomenon is mainly manifested in the following three aspects: (1) When the container is poured into the ink...
Ink output by the ink hopper flow phenomenon called ink ink. When the ink is output by the ink roller, it is only affected by the external force of the ink roller. The flow conditions are mainly the gravity and surface tension of the ink itself, and the inking of the ink depends on its own fluidity, but also on its own flow, viscosity, yield value, thixotropy, drawing and other rheological propert...
After ink roller output, the flow phenomenon is called ink transfer. In the process of printing, the thickness and uniformity of the ink layer on the surface of the image and text of the plate are achieved by a series of ink rollers. Therefore, the quality of ink transfer is directly related to the ink distribution and distribution, and the smooth transfer of ink in the whole process. Generally sp...
Ink in the transfer, distribution (from the ink hopper ink, after complex transfer and distribution, until the smooth transfer to the surface of the printing sheet to form a blot), the flow phenomenon is called the transfer of ink, it is the main body of ink operation adaptability. The transfer of ink can be understood from two aspects: On the one hand, ink transfer, uniform ink and ink roller tra...
After the ink is transferred to the printing surface by the blanket at a certain printing speed and under a certain printing pressure, the fixation and drying speed of the ink film, as well as the color, gloss, fastness and resistance after film formation, etc. ensure the printing effect, which are collectively referred to as the printing quality suitability of the ink. It mainly includes color, p...
① BOPP/VMCPP The composite structure is mainly used in light food packaging such as instant noodles, egg yolk pie and snow cake. The composite structure is the most suitable for one component water-based adhesive. Compared with solvent-based polyurethane adhesive, the single group of water-dispensing adhesive has less ink transfer phenomenon, high initial adhesion, no need for curing, and can be d...
Polyurethane (polyurethanes, abbreviated PU) is a kind of polymer with -NHCOO-repeat structural unit as the main chain. Isocyanate (monomer) is polymerized with a hydroxyl compound.Due to the strong polarity of the carbamate group, insoluble in non-polar groups, with good oil resistance, toughness, wear resistance, aging resistance and adhesion. Materials suitable for a wide temperature range (-50...
Acrylic acid Important organic synthesis raw materials and synthetic resin monomer Acrylic resin is an important organic synthesis raw material and synthetic resin monomer, is a very fast polymerization rate of ethylene monomer.Is the simplest unsaturated carboxylic acid, consisting of a vinyl group and a carboxylic group. Most of them are used to manufacture methyl acrylate, ethyl ester, butyl es...
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