Smear a continuous layer of thin film layer in the waterproof surface that impervious/gas-tight and insoluble in water,that is called coating finish.In order to improve not wet performance and hand feeling of waterproof fabric that by coating finish,after coating must use water repllents to water repellent finish
A.Configuration of polyacrylate resin coating agent。
1.Formula:
(1).polyacrylate resin 100 parts/ethyl acetate 14-16 parts/cross-linking agent 1.8-2 parts;
(2).Polyacrylate paste 100 parts/ethyl acetate 7-8 parts/gasoline 7-8 parts/cross-linking agent 1.8-2 parts.
2.The preparation of work slurry:The equipment is vertical single shaft mixer. Operation:First,diluted mix up cross-linking agent use part of ethyl acetate,join the polyacrylate paste with the rest of the ethyl acetate,use a vertical single shaft mixer to stir about half an hour,until stir evenly.
B.Waterproof coating finishing process
1.technological process:preliminary drying--remove impurities--coating--drying--batching--water repellent finish
2.technological requirements:
(1).ensure the gray cloth smooth into,it have some improve to the edgeslack that caused by front-end production,benefit to improve the quality of coating.
(2)remove impurities:in order to prevent the yarn,dust particle in the scraper blade,caused the shadow disease spot,so in front of the scraper is equipped with fixed brush,brushed except the dust and yarn and other impurity.
(3).coating:On the coating machine,scrape the coating slurry on the waterproof fabric surface evenly with scraper,according to the different requirement,it can be one or several coated imitation.
(4).drying:in order to remove the solvent in the coating slurry,make it be a fastness thin film,after coated imitation should be drying immediately.
(5).water repellent finish:in order to get the good effect of watersprinkling and rain,all the fabric need water repellent finish after coating.
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Zinc thermal diffusion coating can be done by following the patented Greenkote process.
DAG (Docosahexaenoic Acid) coating refers to a process where products are coated with an edible film containing DHA, an omega-3 fatty acid known for its health benefits. This coating can be applied to various food and pharmaceutical products to enhance their nutritional value and stability.
The process of coating an object with a metal is called electroplating. It involves using an electric current to deposit a thin layer of metal onto a conductive surface. This process is commonly used to enhance the appearance, corrosion resistance, and durability of the object.
It may be possible to coat your existing lens with a transition coating, but it is important to consult with an optician or optical laboratory to determine if your specific lens material and coating are compatible. Additionally, the quality of the coating and process may vary depending on the original lens material and quality.
The process of coating iron to prevent it from rusting is called galvanization. Galvanization involves applying a protective layer of zinc to the surface of the iron to create a barrier that prevents oxidation and corrosion. This process helps to extend the lifespan of the iron and maintain its appearance.
Washing outdoor gear and clothing can affect waterproofing by removing the durable water repellent (DWR) coating that helps water bead off the fabric. Over time, washing can wear down this coating, making the gear less waterproof. It is important to reapply DWR treatment after washing to maintain waterproofing.
A-Coating, or autophoretic coating, is a process used to finish a part using a wetting agent, that has no need for an electrostatic charge to set. It is ideal for use on parts that contain hard to reach places where other finishing processes, such as electrostatic coating, may not reach.
After-finishing is a technical treatment which makes the fabric have excellent performance in color, form( bright, suede, stiff and smooth) and practical effect( waterproof, no felting, non-ironing, no decay, burning resistance). Fabric after-finishing is a process to improve the fabric's surface and hand-feeling and strength the fabric performance. After-finishing divided into physical/mechanical finishing and chemical finishing. The existing after-finishing technologies have whitening, sizing, tentering, preshrinking, calender, electro-optics, corrugated, sanded, softening, liquid ammonia finishing,,wrinkle proofing, water repellent, anti static finishing, soil release finish, moth-proof finish, rot proof finishing, fire retardant finishing, weighting finishing, deweighting finishing, coating finishing, cook, wash, milling, fluff, shearing, blowing, pressing, prevent anti-felting finishing, washing, sand washing, stone mill, antibacterial deodorization finishing and so on. The fabric after finishing can improve the clothing inner performance, makes clothing more new functions. Napping, sanding Finishing makes the fabric fluffy, enhance the fabric heat retention property, moisture retention. Calendering, lightning and singeing finish makes the surface fabric less villus, increase the fabric anti-fuzzing and piling property. Shrinking, liquid ammonia, setting makes the fabric stability, lower the fabric shrinkage rate. Soft, liquid ammonia finishing perfect the fabric hand felling, makes the clothing more comfort. The waterproof and moisture permeating finishing makes the clothing more comfort in rainy days. Water repellent and soil release finish makes the clothing more clean. The anti-static finishing make the clothing escape the static, and makes more security, clean and tidy. Fire retardant finishing can effectively prevent the flame spread and maintain the fabric raw performance, safe and reliable, air and water vapor permeability, soft handle and wearing comfortable. By YULONG textile
Metal finishing is a term encompassing a number of processes that are used to place different coats/finishes on metal products for various purposes. These finishes can cover anything from cosmetic changes to practical changes such as rust coating.
Powder coating is a substance used for the coating of items such as household appliances, drum hardware, and vehicle parts. The difference between this type of coating and liquid paint is that the powder does not require any solvents to bind to the materials. Powder coating is the process you use to apply a coating without using solvents. This is the newest coating technique in the industry right now. You usually apply this type of coating to create a hard finish on metals and because it allows you the flexibility to apply to a different layer of thickness. You would see this finishing in materials such as aluminium, medium density fibreboards, fusion-bonded epoxy and acrylics, usually on automobile finishing.
Finishing typically refers to the final steps in a process that prepares a surface for further treatment, while polishing focuses on making a surface smooth and shiny through abrasion or chemical agents. Finishing is more comprehensive and can include various techniques like sanding, buffing, or coating, while polishing specifically aims to enhance the surface appearance.
Zinc thermal diffusion coating can be done by following the patented Greenkote process.
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Oil on leather can occur during fat-liquoring process in the wet-end. This process imparts oil into the leather fibres in order to impart particular softeness or "oily" touch required by the tanner. During the dry-end or finishing process, mineral oil can be imparted onto the leather crust through spray process or generally, roller-coating process. The reason is generally for fashion or water-resistant requirement.
powder coating line is the process of coating a surface in which a powder material ia applied using an electrostatic or compressed air method,or sometimes a fluidized bed.
The most common remedies for static charge development during the coating process including discharging it and grounding the material. This will control the charge and allow the process to be completed successfully.
Some common surface finishing processes include painting, plating, polishing, and anodizing. Each process provides a different aesthetic or functional finish to the material's surface, such as enhancing durability, corrosion resistance, or visual appeal. The choice of finishing process depends on the material, desired outcome, and intended application.