Some basic knowledge of Golden Onion Powder

　　First, the history of gold onion powder: gold onion powder was first created by the United States Glitter Company in 1963, with a history of more than 40 years. China has emerged in the last decade. Gold onion powder is commonly known as glitter, gold onion flakes, glitter powder, etc. Silver film, gold film, color film, seven color film, laser film are referred to the "gold onion powder" of a single species.

　　Second, the basic characteristics of gold onion powder: gold onion powder shape has hexagonal, square (four square), round, triangular, five-star, rectangular and some special shapes, if necessary, according to customer requirements to customize other special shapes. Nowadays, most of them are mainly hexagonal in the market. The materials of gold onion powder are aluminum foil (aluminum material), PET plastic film, PVC plastic film, polyester film and so on. Among them, the gold onion powder of aluminum material is high temperature resistant, the brightness and color will not change under the high temperature of about280℃; PET plastic film is temperature resistant at about 180℃; PVC plastic film is temperature resistant at about 75℃.

　　Third, the categories of gold onion powder: gold onion powder has many colors, but at present the market can be divided into five main categories: silver and white, gold, color, seven colors and five colors, laser. The thickness of gold onion powder also varies according to the industry, and the thickness in production is also different, currently there are 18µm, 25µm, 35µm, 50µm, 188µm and other different thicknesses in the market.

　　Four, the basic production process of gold onion powder: first of all, the surface treatment of raw materials, then vacuum aluminizing, on the protective layer, on the color, and then slitting, processing cutting molding, after post-processing finished products.

　　Five, gold onion powder product specifications comparison table

　　Specification (Hexagonal)

　　Diagonal size (approximate)

　　Specification (hexagonal)

　　Diagonal size (approximate)

　　1/500

　　0.05mm

　　1/32

　　0.80 mm

　　1/360

　　0.07 mm

　　1/24

　　1.00 mm

　　1/256

　　0.10 mm

　　1/16

　　1.50 mm

　　1/128

　　0.20 mm

　　1/12

　　2.00 mm

　　1/96

　　0.30 mm

　　1/10

　　2.50 mm

　　1/64

　　0.40 mm

　　1/8

　　3.00 mm

　　1/40

　　0.60 mm

　　Six, the application of gold onion powder: gold onion powder has a wide range of applications, mainly focusing on printing and dyeing, textile printing, screen printing, glass, cosmetics, ink, paint, plastic, toys, handicrafts, high-end decoration, etc.. Gold onion powder can be mixed with paint, glue, ink, coating, plastic, pulp, glass pulp and other types of raw material substrates; can be cured mixture by natural air drying, high temperature oven drying, steaming drying and other methods.

　　Seven, gold onion powder application notes.

　　1. Plastic industry in the injection molding process, the need for temperature resistance at 200 ℃ or more, the need to use aluminum materials;

　　2. leather, cosmetics, coatings, ink industry need to be solvent and acidity resistance, some industries also need to pass the ASTM D4236-92 standards and cosmetics industry standard certification.

　　3. printing and dyeing, textile printing, screen printing industries require uniform shape fuze, no debris and fine powder.

　　4. all industries require standards of regular shape, good gloss brightness, strong metallic glitter, pure color and vividness.

　　5. In some printing coating requirements will be thin (thickness) a little, while in leather, plastic requirements will be thicker.

　　On the use of our gold onion powder has the following recommendations.

　　1, gold onion powder is widely used in the printing industry, which is most widely used in screen printing (round screen, flat screen). In the gravure printing, because the particles of gold onion powder are large, it is difficult to print on the fabric, and the finest (such as 1/500 class) products are rarely used in gravure because their cost is too high.

　　2, 1/128 particle size of gold onion powder is recommended to use about 40 mesh screen printing (circular printing or flat screen).

　　3, our gold onion powder are PET material, temperature resistance170℃, it is recommended that the baking temperature should not exceed 170 ℃, and the time should not be too long.

　　4、Be careful with strong alkali and strong acid solvents.

　　5, more than 1/64 grain size gold onion powder recommended "sprinkle gold" to arrange production (too coarse, not suitable for screen printing). Sprinkle gold refers to the large grain size of gold onion powder evenly sprinkled on the fabric, production can be first glue paste (viscous, often refers to clothing printing paste type) evenly coated in advance on the fabric, and then the gold onion powder evenly sprayed (manually or mechanically) on the fabric; for the printing industry, can be first varnish printed on paper, and then the gold onion powder evenly sprayed (manually or mechanically), and then put it in the oven to bake, to be The gold onion powder can be stuck firmly.