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Aluminum foil can also be printed with water-based ink. As a non-absorbent substrate, aluminum foil poses a major challenge to water-based ink printing. However, some aluminum foil products that require food-grade printing cannot be printed with oil-based inks, so water-based inks have become the best choice. However, due to the poor absorption of aluminum foil to water-based ink, many inexperienc...
There are several main reasons for water-based emulsion breaking: 1.Large temperature changes, water-based emulsion is easy to separate into water phase and oil phase at high temperature, and easy to crystallize at low temperature. 2.The selection of emulsifier is improper, and the type and dosage of emulsifier are different, which has a great impact on the stability of emulsification. The choice ...
Before the textile coating, it is necessary to pretreat the textile surface to ensure the adhesion and quality of the coating. Common surface treatment methods are: cleaning, degreasing, polishing and so on. Cleaning can be done with hot water or solvents, degreasing can be done with alkaline or acid degreasing agents, and polishing is done by mechanical removal of surface hair. The choice of coat...
First, what is the adhesion of resin Resin adhesion refers to the ability of the resin coating to adhere to the substrate. Insufficient adhesion of the resin on the surface can cause it to fall off or foam, and affect the service life and performance of the product. Second, how to effectively improve the adhesion of resin 1. Surface treatment Surface treatment is an effective method to improv...
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...
Fabric coating finishing is to evenly coat a layer of molecular film on the surface of the fabric to give the fabric with various functions and expand the use of the fabric. Compared with other coating materials, polyurethane coating has high tensile strength, large elongation, good elasticity, good wear resistance, heat resistance, low temperature resistance and aging resistance, and is a hi...
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...
(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...
Fabric coating is a kind of fabric treated by a special process. It can form a uniform layer of covering material on the surface of the fabric, so as to achieve waterproof, windproof, breathable and other functions. Textile Coating, also known as glue coating, that is, acrylic coating, is the most common and most common kind of coating at present. As a textile person, you must know 15 kinds of coa...
First, the principle of adding water-based ink additives When using water-based ink additives, there are some basic principles that need to be followed. First, the resin and ink should be combined first, and then additives are added. Secondly, the appropriate time and method of addition should be selected according to the type and use of the selected additives. Second, the right steps 1.With resin...
Gloves are mainly used to protect the skin from harm in People's Daily activities and special environments, and can also be used to play a decorative role in daily life.According to the different production methods, it is divided into knitted gloves, sewing gloves, soaked gloves and so on. Depending on the function, there are flame retardant gloves, welding gloves, non-slip gloves, oil resistant g...
The commonly used resins for waterborne wood paint are polyurethane and acrylic acid. Waterborne polyurethane resin is a wear-resistant resin commonly used in waterborne wood paint, which can form a hard, wear-resistant coating to provide good protection for wood.The commonly used resins for waterborne wood paint are polyurethane and acrylic acid. Waterborne polyurethane resin is a wear-resistant ...
Glove PU coating refers to coating the outer layer of gloves with a layer of polyurethane (PU) material. This coating has a variety of functions, mainly including: Oil and chemical resistance: makes the gloves suitable for work environments where oils and chemicals need to be handled. Anti-slip and wear resistance: Enhances the stability of the gloves in wet or greasy environments, reduces the ris...
01 Conditions for film formation Stowing operation The water evaporates, and the particles are close to each other to achieve a dense charging state Fusion process The surface layer of the particles is destroyed, and the particles are in contact with each other. Diffusion process The molecular chains between the dispersion particles are diffused with each other to form a homogeneous film with cert...
The application of water-based ink coating is very wide, mainly reflected in the following aspects: 1.Printing industry Water-based inks can be used to print a variety of paper and packaging materials, such as books, newspapers, magazines, posters, gift boxes, etc. All kinds of paper such as kraft paper, coated paper, thermal paper, Glasin paper, release paper and corrugated board can be...
(1) The use of hydrosol Hydrosol is a polymeric dispersion of very small particles, which has the characteristics of both emulsion system and solution system, and can effectively improve water resistance (2) Reduce the amount of emulsifier Although emulsifier plays an important role in the formation of micelles in polymerization and the stability of the polymerization emulsion, it is als...
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