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The grinding fineness of paint is one of the important qualities of color paint, which has a great impact on film forming quality, film gloss, durability, storage stability of paint, etc., and is one of the routine testing items of paint production. The fineness of the paint refers to the size of the particle size or the uniformity of the dispersion of the pigment or the bulk pigment, and the unqu...
The main reason for water-based ink drying 1.Water-based ink: water-based carton ink, non-woven ink, paper towels, paper cups and paper bags and other packaging printing; 2.Water-based polishing oil series: water-based polishing oil, polishing oil, high gloss, wear-resistant, matte, waterproof, antifreeze and other environmental protection water-based products. Water-based ink drying is mainly cau...
First, resin reaction temperature standard The reaction temperature of resin is an important process parameter, which has great influence on the reaction rate, physical properties and chemical stability of resin. In general, the resin reaction temperature should be determined according to different resin types and catalyst types. The following are some commonly used resin reaction temperature stan...
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...
Architectural coatings mainly use water as a dispersing medium and diluent, and its advantages are that the water of the dispersing medium is non-toxic and harmless, manufacturing and storage and transportation without the danger of explosion, no pollution to the environment, and to solve the problem of excessive VOC(volatile organic compounds) of solvent-based coatings at normal temperature. Film...
I.Definition The emulsion is a colloidal system with a particle size of 0.1~10μm formed by two insoluble liquids through the action of emulsifier. Secondary dispersion refers to a colloidal system formed by particles (or molecular groups) less than 1μm are dispersed into a continuous phase (such as water) under the action of a stabilizer. By definition, the formation of emulsions and secondary dis...
1.Type: There are three main types of water-based acrylic resins, including emulsion, water dispersion and aqueous solution. The emulsion is synthesized by emulsifying olefins in water under the action of water-based free radical initiator. The aqueous dispersion is synthesized by free radical solution polymerization or stepwise solution polymerization. Aqueous acrylics are directly soluble in wat...
Water-based resins can be divided into water-emulsion, water-dispersed and water-soluble according to their appearance. There are many people think that this is the same resin, in fact, it is not only the appearance is not the same and the use and characteristics are very different. Water-based acrylic resins are generally divided into water-based emulsion acrylic resins and water-soluble acrylic ...
Compared with solvent-based acrylic paint, the paint made of water-based acrylic resin has the advantages of stability, safe use, environmental protection, reducing environmental pollution and saving resources! At present, it has become an important development direction of the coating industry. The coating using water-based acrylic resin is a low-pollution or even pollution-free environmental pro...
water base varnish for glass Does not contain benzene, esters and other harmful solvents, does not contain free TDI, does not burn, is the latest environmental protection glass process paint, by the international and other authoritative verification institutions assessed as the real green environmental protection products. Solve problems It is required to blister at 75℃ for 30 minutes and it is re...
Leather finishing is generally divided into three parts:Primer coat, middle coat, and topcoat.Primer requires strong adhesion, hiding power, good embossing formability and stereotyping, and the middle coating further covers and modifies the color, and finally achieves the visual and physical performance requirements through the topcoat.With a specific topcoat, the effect of extinction or ligh...
Polyurethane coating film bright and full, hard wear-resistant, oil, acid, chemical and industrial waste gas resistance, good electrical properties, and a variety of resin miscible, can be adjusted in a wide range of formulations to meet different needs. Widely used in wood, automobile, aircraft, machinery, electrical appliances, instruments, plastics, leather, paper, fabric, petrochemical an...
The method of using silane coupling agent mainly includes pretreatment method and integral blending method. When using silane coupling agent, it is necessary to choose the appropriate method and conditions according to the specific situation. At the same time, it is also necessary to pay attention to the amount and time of use of silane coupling agent to ensure that it can play the best ...
Roofing decoration materials in the color stone metal tile is how to perform well in waterproof performance Why is the waterproof performance so good? Material characteristics Colored stone metal tile using aluminum-plated zinc steel plate as the base, this material has excellent anti-corrosion properties, can effectively resist the erosion of the external environment. At the same time, the acryli...
Aqueous acrylic emulsion is a kind of chemical raw material with strong function and excellent performance, which is widely used in many fields such as coating, ink, textile, papermaking and waterproofing. This emulsion is mainly composed of pure acrylic monomer, which is prepared by precise copolymerization, and its non-toxic and pollution-free characteristics make it popular. I.Physica...
(1)Paint for transportation vehicles cars, ships, aircraft and other transportation vehicles, in addition to meet the requirements of gloss, friction resistance, adhesion, etc., due to its special frequency of use and environment, the waterproof performance of waterborne polyurethane coatings used is also put forward high requirements. The water-based polyurethane waterproof coating referred to he...
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