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The foam problem in water treatment has troubled many people, debuting the initial foam, surfactant foam, impact foam, peroxide foam, circulating water treatment with non-oxidizing fungicide generated foam, etc., so the use of defoamer in water treatment is more common, this article comprehensively introduces the principle, classification, selection and dosage of defoamer! Methods of foam eliminat...
Advantages and disadvantages of the same type of defoamer Organic defoamer such as mineral oils, amides, low alcohols, fatty acids, fatty acid esters and phosphate esters has been studied and applied earlier, belonging to the first generation of defoamer, which has the advantages of easy access to raw materials, high environmental performance and low production cost.The disadvantages are low defoa...
Water dispersion system is commonly used to analyze the relationship between surfactant structure and dispersion.As a hydrophobic solid particle, it can adsorb the hydrophobic group of the surfactant, and if it is an anionic surfactant, the outward-facing hydrophilic genes have the same charge and repel each other. Obviously, the adsorption efficiency of surfactants increases with the increase of ...
Defoamer is a substance with low surface tension and high surface activity, which can inhibit and eliminate foam in the liquid, that is to say, defoamer can reduce the surface tension of water, solution, suspension, etc., to prevent foam generation or eliminate the original foam.Long-term defoaming is also known as defoaming, and the length of the defoaming time is the main sign of the quality of ...
Depending on the coating material used, the type of coating is also different. PVDC coating, PVOH coating, silicon oxide (Si0x) coating, Acrylic (Acrylic) coating these four kinds of plastic coating characteristics and applications are introduced. According to the different coating materials used, plastic coating mainly has the following types: 01/PVDC coating PVDC emulsions can be coated in sever...
Laminating water-based adhesive for flexible packaging. Suitable for thickness 30 μ Dry compounding of plastic and paper plastic within M. It is suitable for compounding between pet, BOPP, CPP, PE, aluminized film, pearlescent film and other materials, and is suitable for dry compounding machines with various speeds Features Low odor, good strength and good matching with ink Water solubility, good...
One,Overview Paper-plastic composite can make the surface of paper printed matter more bright, smooth and color more bright and full of three-dimensional sense, but also play a role in moisture, anti-fouling, anti-counterfeiting, folding resistance, wear resistance and so on.It has been widely used and rapidly developed in printing and packaging industry at home and abroad. The market demand for p...
With the rapid development of printing and packaging industry, the appearance design of products is becoming more and more high-end. The composite technology used in modern exquisite printing mainly includes: paper printing and plastic film composite and plastic printing and plastic film composite, that is, paper-plastic composite and plastic-plastic composite.As a new type of packaging material, ...
As we all know, printed laminating is one of the surface decoration processing technology of printed matter, which is the auxiliary process of printing. It is the plastic film bonded together with the printed matter through the adhesive to improve the surface gloss, strength and aesthetic effect of the printed matter, so as to make it water resistant and wear resistant, which is an effective means...
Composite film manufacturer there are bubbles and spots in the composite film, what is the cause? There are many factors in this kind of situation, and the actual situation needs to be analyzed in detail. The basic elements commonly used to produce bubbles and spots are: 1, environmental factors such as dust and suspended matter interference, which requires a good environmental health area environ...
In daily life, we will use glue in many places, and we often see the figure of water-based glue. If you say you can't remember where you used glue, look at street posters, advertisements, and alley shoe repairmen.We usually use glue in class or work to stick some paper, bills and so on. It can be said that water-based glue has always been around us. In addition, water-based adhesives have also bee...
According to the different raw materials and equipment, the coating process can be divided into two kinds of coating process and pre-coating process. That is to say, the film used in the coating process is now coated, and the adhesive used is generally solvent-based and emulsion type, prepared according to need. However, the film used in the pre-coating process is pre-coated, and the adhesive used...
Whether the water-based film adhesive meets the quality requirements of composite products, in addition to the quality of the glue itself, but also related to the paper, film, equipment accuracy, operating experience and other supporting factors in the film coating process, after long-term practice, we summarized the common problems in the application of water-based film adhesive, and put forward ...
According to the different raw materials and equipment, the coating process can be divided into two kinds of coating process and pre-coating process. That is to say, the film used in the coating process is now coated, and the adhesive used is generally solvent-based and emulsion type, prepared according to need. However, the film used in the pre-coating process is pre-coated, and the adhesive used...
Aluminized film glue is a composite material that binds aluminum film and other materials together by glue. It is usually used in paper packaging to prevent moisture, oxidation, heat insulation and pollution. First of all, the aluminized film glue can effectively prevent the paper from absorbing moisture and oxygen in the air, thereby maintaining the dryness and freshness of the product and extend...
As a kind of widely used adhesive, coated adhesive has a variety of processes. Here are some of the common processes used: 1. Hot melt coating: hot melt coating is to place a layer of film on the surface of the print, and then through hot pressing the film and the print together.In this process, the laminating glue is heated to turn it into a liquid, which then forms a uniform coating between the ...
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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