PET label primer Cost-effectively improve the printability of PET labels Excellent adhesion with PET label substrate Good affinity with all kinds of ink Good weather resistance, no yellowing Easy to use, safe and environmentally friendly PET label primer is a water-based coating designed to improve the printability of PET label paper with advanced material technology and formulation technology. Due to the excellent dielectric properties of PET, and good anti-fouling, anti-scratch, high temperature resistance and other properties, PET labels are widely used in food packaging, electronic appliances, medical and other fields. However, for a long time, the adhesion of ink on the surface of PET substrate has been a technical problem. The PET label base coating agent of sinograce Chemical Company has been carefully designed and has special functional groups, which can be effectively combined with the polar groups on the PET surface to quickly form a transparent film with high gloss and excellent adsorption for all kinds of inks, and improve the printability of PET substrates. On the basis of high adhesion, PET label base coating has good weather resistance and does not yellow. The PET label base coating of Sinograce Chemical Company has successfully solved the problem of printability of PET surface, providing an efficient solution for the printing of plastic label surfaces on PET substrates. Product feature Cost-effectively improve the printability of PET substrates: Since PET is a weakly polar material, printing directly on the PET surface will cause the printability of the ink to decrease. PET label primer successfully improves the printability of the ink on the PET surface by undercoating, without special equipment or processes. Excellent adhesion with PET substrate: The polymer structure of PET label primer has special functional groups, which help the molecular chain flow and wettability on the PET substrate surface, so that the coating and the substrate molecules are in close contact to achieve high adhesion. It has excellent absorbability for all kinds of inks: PET label base coating is carefully prepared, and the ink has a certain penetration effect on the PET label base coating, which improves the wetting ability of PET to UV ink, increases the firmness of UV ink, and eliminates the insufficient adhesion of UV ink on the PET substrate. Good weather resistance, no yellowing: PET label primer has excellent weather resistance and can be widely used in various occasions. Easy to use, safe and environmental protection: PET label base coating is a single-component product with water as a dispersing medium, does not contain heavy metals, environmental protection, non-toxic, no combustion and explosion risk, and can meet the environmental protection requirements of the European Union.

The high adhesion base coating improves the adhesion of the inkjet coating on PP paper Prevent ink from penetrating into PP composite paper substrate Fast drying speed to meet the needs of production line Good weather resistance, no yellowing Easy to use, safe and environmentally friendly Anhui sinograce company's PP composite paper digital inkjet coating adhesive base | Inkblot coating base is an environmentally friendly coating using advanced material technology, which can significantly enhance the adhesion of digital inkjet coating on PP composite paper which is difficult to adhere, and improve the printing quality of PP composite paper products. PP composite paper because of its excellent gloss, stability and moisture resistance, corrosion resistance advantages, in the advertising, digital printing and packaging industry has been rapidly developed. However, the surface polarity of PP composite paper is low, resulting in unsatisfactory adhesion of the digital inkjet coating used for ink absorption. In the absence of a suitable primer, the printed image is easy to produce fading and powder, affecting the quality and competitiveness of the printed product. For a long time, in the production of PP synthetic paper, including PP photo paper, how to solve the adhesion of ink absorption coating on PP composite paper has been a technical problem. Anhui Sinograce Chemical Co., LTD. 's PP composite paper with digital inkjet coating adhesive base | ink absorbing coating base has been carefully designed and formulated with special functional groups, which can effectively combine with the polarity group after corona treatment on the surface of PP substrate to produce a coating with high adhesion, which plays a good role in the foundation of ink absorbing coating on PP substrate. Make the inkblot print coating withstand the tape tear without falling off. Anhui Sinograce Chemical Co., LTD. 's PP composite paper with digital inkjet coating adhesive base | ink absorbing coating base successfully solved the problem of difficult adhesion on the surface of PP composite paper, and provided an efficient solution for the development of PP synthetic paper products with high quality and environmental protection. Product feature Anhui Sinograce Chemical Co., LTD. 's PP composite paper with digital inkjet coating adhesive primer | Ink blotting coating primer has special functional groups, which can be effectively combined with the polar groups after corona treatment on the surface of PP composite paper to produce a transparent coating with high adhesion ability, which plays a good role as the foundation for ink blotting printing coatings. Stop ink penetration into PP composite paper substrate: Anhui Sinograce Chemical Co., LTD. 's PP composite paper with digital inkjet coating adhesive substrate | Ink absorbing coating substrate adopts self-crosslinked resin to provide a physical barrier between the body film and ink, which can prevent the low molecular weight...

The rheological properties of the ink include the viscosity, adhesion, yield value, thixotropy, fluidity and fluidity, and transferability of the ink. In the printing work, the rheology of the ink has an important impact on the quality of the printed product. The following are to talk about the impact of these rheological properties on the printing quality of ink. First, viscosity. Viscosity is a measure of the ability to hinder the relative movement of molecules caused by the mutual attraction of fluid molecules, which shows a property of preventing flow in the fluid and the degree of resistance to flow. The motion resistance caused by the mutual attraction between fluid molecules in the process of fluid flow is called internal friction. Viscosity is an important indicator of ink rheology, in the printing process of a certain viscosity is to ensure that the ink support transfer and uniform transfer of the main conditions, it is related to the printing process can proceed smoothly, and directly affect the uniformity of ink, clarity and gloss. Improper control of ink viscosity in printing will bring a variety of failures to printing, as listed below. 1.When the viscosity of the ink is too large, the drawing property is strong, during the ink transfer process, the wire head is too long when it splits between the ink rollers, and the broken end of the wire head is easy to form the ink flying into the air, forming the flying ink phenomenon in printing, and the flying ink phenomenon is more obvious in high-speed printing. 2.the viscosity of the ink is too large, it is easy to cause the depowder of the paper, drawing or delamination stripping phenomenon. This phenomenon is particularly obvious when the structure of the printing paper is loose and the surface strength is not high. 3, when the ink is transferred and transferred between the ink rollers, the viscosity is too large to make the ink transfer difficult. Excessive ink viscosity will lead to uneven distribution of ink, insufficient ink transferred to the plate or printed matter, uneven ink, and the phenomenon of bare print graphic base. Other effects of excessive viscosity on the printing process, such as the increase in the amount of ink, the printing ink layer is too thick, the drying speed is slow, and the back of the printing matter is easy to stain or adhere; In flat paper printing, it is also easy to produce the phenomenon that the paper is sucked into the ink roller. 5.the viscosity of the ink is too small, its fluidity increases, and it is easy to produce ink emulsification in the offset printing, resulting in dirty prints; The ink with too small viscosity is easy to produce spreading phenomenon on the paper, resulting in a large imprint area, a decline in clarity, and reduce the firmness of the combination of the imprinted dry conjunctiva and the substrate surface and the gloss of the imprint. 6.The viscosity of the ink is too small, often can not drive the ink particles in the larger p...

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 conditions. Main components Water-based ink is composed of binder, pigment, additives and other substances of uniform slurry substance. The binder provides the necessary transfer properties of the ink, and the pigment gives the ink its color. Water-based ink binder is mainly divided into two types: water dilution type and water dispersion type. There are many types of resins that can be used in the former, such as maleic acid resin, shellac, maleic acid resin modified shellac, ulatan, water-soluble acrylic resin and water-based amino resin. Water-dispersed binder is obtained by polymerization of emulsified monomer in water, it is a two-phase system, in which the oil phase is dispersed in the water phase in a granular form, although it can not be dissolved by water, but it can be diluted by water, so it can also be considered as water-in-oil emulsion. Classification Modern inks are mainly divided into four categories according to the type of ink: Relief printing ink A type of ink used for printing books, newspapers, picture albums, bills, accounts, etc. The main feature of letterpress printing is that the inked part of the printed page is protruding from the non-inked part. Letterpress ink according to the type of printing machine and the use of printing products are divided into lead printing ink, copper printing ink, rotary letterpress ink, flexible letterpress ink. planographic printing ink A type of ink suitable for lithographic printing. Each part of the lithographic printing page is basically in a plane, the pattern is oil-wet, the non-pattern is water-wet, and the principle of oil-water repulsion is used for printing, so the lithographic ink must have water resistance. According to the process, it is divided into offset ink, web offset ink, flat offset ink, waterless offset ink, iron printing ink, lithographic ink. Gravure ink A type of inks suitable for gravure printing. When printing, ink is inked into the patterned part of the page, erase or scrape the ink of the non-patterned part, and then print. There are engraving intaglio ink and photogravure ink. Screen printing ink A type of ink that is printed by leaking through the plate's mesh onto the substrate surface. Screen printing ink is divided into stencil printing ink and screen printing ink. Water soluble resin Water-soluble resin or water-dispersed resin is the connection material of water-based ink, which has a great impact on the viscosity, adhesion, gloss, drying and printing adaptability of the ink. Water-based ink is made of water-based polymer emulsion, organic pigments, resins, surfactants and...