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1. Baking enamel:
It is a single-liquid formula that cross-links when heated and has better storage performance. Can be stored for 6 months to one year. It has good finish, abrasion resistance, chemical resistance and weather resistance, so it is most commonly used. Alkyd, acrylic and polyester have these characteristics. Epoxy resin has a tendency to break and pulverize and is generally not used outdoors, but it dries quickly and has good chemical resistance. Alkyd enamels have balanced physical properties, such as chemical resistance and weather resistance, formability, hardness and gloss, and are most widely used.
2. Air drying enamel:
It is usually made of drunk acid, and it needs to use oxygen in the air to solidify through reaction. The performance of acid enamel paint depends on the type and quantity of oil used. The longer the oil drying time, the longer the drying time of the enamel paint. When the drying speed is used as the condition, paints with long drying time generally have good surface durability. These paints are mostly used for outdoor metal signs.
3. Melting and volatile ink:
Only rely on solvent volatilization to achieve drying. The final performance of the coating is determined by the inherent physical properties of the polymer before it is formulated into a liquid. Such polymers contain thermoplastic acrylic acid. Screen printing inks based on volatile properties are often damaged by dissolution. There are some acrylics that are insoluble in gasoline and alcohol, and the film surface can be in contact with them. Therefore, inks based on thermoplastic acrylic, ethylene and other soluble polymers are mostly used on plastic substrates.
4. Two-liquid ink:
Common ones are epoxy or polyurethane, although there are many others. The two-liquid system that is often used in the wood is the most sensible choice for energy saving. Its coating quality is high, but it is not convenient to mix. In addition, it is necessary to choose according to the purpose of the product. If the product may be used outdoors and has some flexibility, then use aliphatic hydrocarbon as the main urethane ink. Two-component epoxy resin ink has the same performance as baking enamel, but the formability is not good enough.
5. Ink additives:
Like other inks, metal screen printing inks also contain additives, which are a small amount of chemical agents added during production to improve the performance of the ink film. Some can accelerate or initiate curing, while others can cause bubbles to burst and ink. The quality is uniform, reducing the possibility of conjunctiva. The manufacturer mixes the additives with the ink according to the specific formula. What the printer needs is to dilute the ink to a consistency suitable for printing.
It is a single-liquid formula that cross-links when heated and has better storage performance. Can be stored for 6 months to one year. It has good finish, abrasion resistance, chemical resistance and weather resistance, so it is most commonly used. Alkyd, acrylic and polyester have these characteristics. Epoxy resin has a tendency to break and pulverize and is generally not used outdoors, but it dries quickly and has good chemical resistance. Alkyd enamels have balanced physical properties, such as chemical resistance and weather resistance, formability, hardness and gloss, and are most widely used.
2. Air drying enamel:
It is usually made of drunk acid, and it needs to use oxygen in the air to solidify through reaction. The performance of acid enamel paint depends on the type and quantity of oil used. The longer the oil drying time, the longer the drying time of the enamel paint. When the drying speed is used as the condition, paints with long drying time generally have good surface durability. These paints are mostly used for outdoor metal signs.
3. Melting and volatile ink:
Only rely on solvent volatilization to achieve drying. The final performance of the coating is determined by the inherent physical properties of the polymer before it is formulated into a liquid. Such polymers contain thermoplastic acrylic acid. Screen printing inks based on volatile properties are often damaged by dissolution. There are some acrylics that are insoluble in gasoline and alcohol, and the film surface can be in contact with them. Therefore, inks based on thermoplastic acrylic, ethylene and other soluble polymers are mostly used on plastic substrates.
4. Two-liquid ink:
Common ones are epoxy or polyurethane, although there are many others. The two-liquid system that is often used in the wood is the most sensible choice for energy saving. Its coating quality is high, but it is not convenient to mix. In addition, it is necessary to choose according to the purpose of the product. If the product may be used outdoors and has some flexibility, then use aliphatic hydrocarbon as the main urethane ink. Two-component epoxy resin ink has the same performance as baking enamel, but the formability is not good enough.
5. Ink additives:
Like other inks, metal screen printing inks also contain additives, which are a small amount of chemical agents added during production to improve the performance of the ink film. Some can accelerate or initiate curing, while others can cause bubbles to burst and ink. The quality is uniform, reducing the possibility of conjunctiva. The manufacturer mixes the additives with the ink according to the specific formula. What the printer needs is to dilute the ink to a consistency suitable for printing.
Posté le 11/12/2020 à 06:39 par lettesteel
Catégorie sign