An important link in the production of color printing packaging is after color printing or paper-plastic film decoration, now the means of packaging products mainly rely on film or glazing, advertising instructions, books and notebook covers, commodity packaging and signs are all so. In terms of surface coating or glazing, there are now a variety of decorative methods to choose from, such as: (1)Cover BOPP, PE or PVC plastic film with water-based laminating glue; (2)With organic solvent-based coated plastic film; (3)Cover the plastic film with a plastic film pre-coated with adhesive; (4)Select the high-grade coated paper that has been coated with finishing agent directly, and no longer polish or laminate after printing; (5)After printing, the surface is coated with water-based polishing oil; (6)The surface is coated with organic solvent-based polishing oil; (7)With UV UV curing glazing oil and so on. Correct understanding of the advantages and disadvantages of these surface decoration methods, how their respective vitality, how the future development trend, not only for the packaging and printing industry is extremely important, the development and production of related adhesives, glazing oil, finishing agent, plastic film, laminating and glazing machinery and equipment manufacturers are also extremely important. First of all, let's talk about the performance and use characteristics of water-based film adhesive, it is a white emulsion adhesive composed of water as a dispersing agent and high molecular polymer as a dispersing phase. The real water-based film adhesive should not contain any organic solvent, the residual organic monomer should be less than 0.1%, and it smells no odor or slightly alcohol or ester fragrance. Good water-based coating adhesive can be used for water-based machine, can also be used for oil machine, water machine structure is simple, cheap (2.5 ~ 100,000 yuan/set), driving speed, is generally 2 times the speed of oil machine. Good water-based adhesive content is about 1 times higher than oil-based adhesive, and it is wet coated, and the adhesive is dry and transparent by the absorption and distribution of water by the paper fiber after coating, and firmly bonded with the plastic film. The product gloss and whiteness of water-based adhesive are better than that of organic solvent-based adhesive, and the adhesive force is equivalent to solvent-based adhesive. And water-based adhesive with water-based machine coating using cold bonding method, without heating drying, can save a lot of energy; Due to the high content of water-based adhesive, the coating area of water-based adhesive of the same weight is more than 50% larger than that of solvent adhesive, so the product cost of water-based adhesive coating is much lower than that of solvent adhesive; Because water-based adhesive does not contain toxic, flammable, explosive, environmental pollution of organic solvents, but also reduce the risk of fire, because water-based adhesi...

That is, metal foil printing adhesive, commonly known as hot stamping adhesive, is a special performance adhesive, but also the key to the success of metal foil printing. product presentation Hot stamping adhesive consists of a special adhesive composed of a suitable hot melt adhesive and a bonding resin, which is composed of two points: 1.There are polyamide series, polyester series, polyethylene series, polyurethane series of hot melt adhesive. 2.Bonding resins (adhesives) have PA series (containing acrylonitrile) and PU series The above two parts are reasonably combined to form a special adhesive with metal foil printing requirements of printing paste through the net and good movement performance, can get a uniform coating on the cloth can be appropriate to the base cloth without excessive penetration should also be low hot melting point, no shrinkage, washable, dry cleaning resistance is good, feel soft. Application range The application range is according to the product requirements pressing flat, round surface, copying surface. operational process The gold stamping silicone roller transfers the pattern of the object to the flat surface through the pressure of the rubber roller. The silicone roller can print a large area of the pattern can also print a flat pattern. Characteristics and requirements High temperature resistance, heat conduction, the higher the hardness of silica gel, the higher the hardness of hot stamping plate, the higher the high temperature resistance. Soft silica gel high temperature resistance, thermal conductivity will be poor.

Acrylic paint is a fast drying paint made from pigments suspended in acrylic polymer emulsions and plasticizers, silicone oils, defoamizers, stabilizers, metal soaps. Acrylic paint is water-soluble, but becomes resistant to water when dried.Depending on the amount of paint diluted with water, or modified with acrylic gels, media, or pastes, the final acrylic paint can resemble watercolor, gouache, or oil painting, or have unique properties that other media cannot achieve. Acrylic paint properties The medium and binder for oil-based paints is linseed oil (or another drying oil), while acrylic paints use water as a medium for an acrylic polymer emulsion (suspension) that acts as a binder. For this reason, paint is said to be "oil-based" while acrylic paint is "water-based" (and sometimes "water-based"). The difference between acrylic and watercolor paint The significant difference is that acrylic is opaque, while watercolor is essentially translucent. Both acrylic and watercolor are easy to clean with water. Acrylic can be removed from the brush using soap and water. Watercolor pens, on the other hand, can only be cleaned with water. Sinograce Chemical is mainly based on various acrylic resins acrylic coating, welcome customers and friends to negotiate!

First, the choice of self-adhesive printing raw materials When selecting raw materials, we must choose high-quality self-adhesive materials with qualified physical and chemical indexes, rather than products with expired or unstable physical and chemical indexes. Although the latter price is low, but due to the unstable quality of such materials, large consumption in each process, and even lead to the normal processing of equipment, waste of raw materials at the same time also waste a lot of manpower and material resources, the processing cost of the finished product label is not necessarily low, more serious is that there may be customer returns, and even lose customers. The selection of raw materials should be considered from the following two aspects 1.Self-adhesive printing and self-adhesive printing processing characteristics ①The surface gloss and color consistency of the self-adhesive printing surface material and the uniformity of the density determine the uniformity of the ink absorption of the self-adhesive material, and also determine the color difference of the same batch of label printing. The coating strength of the surface material determines whether a large amount of paper powder will be produced when printing, and is also an important indicator to determine the quality of printing. ②The thickness uniformity and strength indication of self-adhesive printing base paper and surface material These indicators are not only related to printing performance, but also an important indicator to determine the uniformity of die cutting and the speed of waste discharge and paper edge breakage. If these indicators are too low, the label machine can not be produced at high speed ③ Flatness or uniformity of rewinding tension of self-adhesive printing materials Whether it is single sheet printing or web printing, the flatness of the material determines whether the printing can be correctly fed, run and register, and receive paper. For the reel material, the rewinding tension will play an important role in the flatness of the end face of the reel material, whether there is infiltration and whether it can be correctly registered. ④ The uniformity and correct coating amount of self-adhesive printing adhesive and silicone oil coating These indicators directly affect the stripping force (release force) between the label and the bottom paper, and the size of the stripping force directly affects the die cutting waste and the speed of the machine, and the stripping force also determines the label marking condition, that is, the application situation. In addition, the size of the amount of glue will also affect the cementing condition of the end surface of the material. Therefore, the purchase of self-adhesive materials should be carefully tested, and those materials with the appropriate amount of glue and silicon coating should be selected. Sinograce Chemical Co., Ltd. is mainly based on water-based glue, water-based self-adhesive adhesive, water-based lab...