The cosmetic bottles we usually buy ( Spray Bottles / Hand Sanitizer Bottles / Airless lotion bottles) will print the brand's logo and details. Do you know how these words are printed? Let me introduce to you the common printing types:
Screen Printing is to stretch silk fabrics, synthetic fabrics or wire mesh on the screen frame, and adopts the method of manual engraving paint film or photochemical plate-making to make screen printing forme. Modern screen printing technology is to use photosensitive materials to make screen printing plates by means of photographic plate making (so that the screen holes of the graphic part on the screen printing plate are through holes, and the screen holes of the non-graphic part are blocked. live). During printing, through the extrusion of the scraper, the ink is transferred to the substrate through the mesh of the graphic part, forming the same graphic as the original. Screen printing equipment is simple, easy to operate, easy to print and plate-making, with low cost and strong adaptability. The common printed products with a wide range of screen printing applications include: color oil paintings, posters, business cards, bound covers, commodity signs, and printed and dyed textiles.
Pad Printing is one of the special printing methods. The pad printing process is very simple, using steel (or copper, thermoplastic) gravure, using a curved pad printing head made of silicone rubber material, dipping the ink on the gravure onto the surface of the pad printing head, and then applying it to the surface of the desired object Just press it to print text, patterns, etc. For example, the text and patterns on the surface of mobile phones are printed in this way, and the surface printing of many electronic products such as computer keyboards, instruments, and meters are all done by pad printing.
Curved Surface Printing is to put the ink into the intaglio with engraved text or pattern first, then copy the text or pattern onto the curved surface, then use the curved surface to transfer the text or pattern to the surface of the molded product, and finally use heat treatment or ultraviolet light irradiation. Ink curing.
Lithographic Process Since the graphic part and the non-graphic part of the lithographic printing are on the same plane, in order to make the ink distinguish the pattern part or the non-pattern part of the printing plate, the principle of oil-water separation is used to first print the printing plate The water supply device of the part supplies water to the non-graphic part of the printing plate, thus protecting the non-graphic part of the printing plate from wetting by ink. Then, ink is supplied to the printing plate by the ink supply device of the printing part. Since the non-graphic part of the printing plate is protected by water, the ink can only be supplied to the graphic part of the printing plate. Finally, the ink on the printing plate is transferred to the skin, and then the pressure between the rubber roller and the impression cylinder is used to transfer the ink on the skin to the substrate to complete a printing. Therefore, lithography is a kind of indirect printing methods.
Hot Stamping (Lettering) commonly known as "bronzing", has a long history in our country. It refers to the words and patterns of colored foil and other materials that are stamped on the cover one or four of the hardcover book cover and the back of the book, or embossed with various convex and concave book titles or patterns by hot pressing
Water Transfer Printing technology is a kind of printing that uses water pressure to hydrolyze the transfer paper/plastic film with color patterns. The technological process includes the production of water transfer printing paper, soaking the flower paper, pattern transfer, drying, and finished product.
IMD is In-Mold Decoration (in-mold decoration technology), which can be divided into IMR, IML and IMF according to its production and processing methods. IMR (In-Mold Roller): that is, in-mold ink transfer printing is an in-mold decoration technology that transfers the ink attached to the film to the appearance of the product through injection molding, and then uncovers the film through the mold opening process. ML (In-Mold Labeling): In-Mold Labeling is to put the printed and trimmed appearance label into the mold by manual or robotic arm, and then make it adhere to the appearance surface of the finished product through injection molding.
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Mechanical Polishing is a polishing method that removes the polished convex part by cutting and plastic deformation of the material surface to obtain a smooth surface. Generally, oil stone strips, wool wheels, sandpaper, etc. are used, and manual operations are mainly used. Special parts such as the surface of a rotating body, Auxiliary tools such as turntables can be used, and ultra-fine grinding and polishing methods can be used for high surface quality requirements. Ultra-fine polishing uses a special abrasive tool, which is pressed tightly on the workpiece to be processed in a working fluid containing abrasives for high-speed rotation. The surface roughness of Ra0.008μm can be achieved by using this technology, which is the highest among various polishing methods. Optical lens molds often use this method.
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Electrolytic Polishing uses the workpiece to be polished as the anode and the insoluble metal as the cathode. The two poles are immersed in the electrolytic cell at the same time, and a direct current ionization reaction is used to produce selective anode dissolution, so as to achieve the effect of removing fine burrs and increasing the brightness of the workpiece surface.
Chemical Polishing is a method of eliminating wear marks and etching and leveling by selective dissolution of chemical reagents on uneven areas of the sample surface.
Etching is the technique of removing material using chemical reaction or physical impact. Etching techniques can be classified into wet etching and dry etching. Usually refers to etching, also known as photochemical etching, which refers to removing the protective film of the area to be etched after exposure to plate making and development, and contacting chemical solutions during etching to achieve the effect of dissolution and corrosion, forming concave-convex or hollow-out molding effects.
Galvanizing refers to the surface treatment technology that coats the surface of metal, alloy or other materials with a layer of zinc for aesthetics and rust prevention.
Powder Coating is to use powder spraying equipment (electrostatic spraying machine) to spray powder coating on the surface of the workpiece. Under the action of static electricity, the powder will be evenly adsorbed on the surface of the workpiece to form a powder coating; the powder coating is baked at high temperature. Bake leveling and curing to become the final coating with different effects (different types of powder coating effects).
Microarc Oxidation (MAO), also known as microplasma oxidation (MPO), is an instantaneous high temperature generated by arc discharge on the surface of aluminum, magnesium, titanium and their alloys through the combination of electrolyte and corresponding electrical parameters. Under the action of high pressure, a ceramic film layer mainly composed of matrix metal oxide is grown.
Metal Wire Drawing is a manufacturing process in which the aluminum plate is repeatedly scraped out with sandpaper. The main process of the process is divided into three parts: deesterification, sand mill, and water washing. In the wire drawing process, the special film technology after anodizing can make the metal surface generate a film layer containing the metal component, clearly showing every tiny silk trace, so that fine hair strands appear in the metal matte luster.
Burning Blue is to fill the whole carcass with colored glaze, and then bake it in a blast furnace with a furnace temperature of about 800 degrees Celsius. The colored glaze is melted from a sandy solid into a liquid, and after cooling, it becomes a gorgeous color fixed on the carcass. Glaze, at this time, the color glaze is lower than the height of the copper wire, so it has to be filled with color glaze again, and then sintered, usually four or five times in a row, until the pattern is filled to the same level as the filigree pattern.
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Frosting is a process of making an object with a smooth surface rough, so that light shines on the surface to form a diffuse reflection. The frosting treatment in chemistry is to mechanically or manually grind the glass with corundum, silica sand, pomegranate powder and other abrasives to make a uniform and rough surface. It can also be used to process the surface of glass and other objects with hydrofluoric acid solution. The product becomes frosted glass.
Thermal Transfer Printing is an emerging printing process introduced from abroad. The printing method of thermal transfer process is divided into two parts: transfer film printing and transfer processing. The transfer film printing adopts dot printing (resolution up to 300dpi), and the pattern is pre-printed on the surface of the film. The printed pattern is rich in layers and bright in color. , ever-changing, small color difference, good reproducibility, can achieve the effect required by the designer, and is suitable for mass production.
Laser Carving, also called laser engraving or laser marking, is a process of surface treatment using optical principles. Use a laser beam to engrave a permanent mark on the surface of a material or inside a transparent material. Laser beams can produce two kinds of chemical effects and special effects on substances. When the material absorbs the laser light instantaneously, a physical or chemical reaction occurs, thereby engraving marks or displaying patterns or characters.
PVD is the abbreviation of Physical Vapor Deposition (Physical Vapor Deposition), which refers to the use of low-voltage, high-current arc discharge technology under vacuum conditions to use gas discharge to evaporate the target and ionize the evaporated material and gas. , using the acceleration of the electric field to deposit the evaporated substance and its reaction product on the workpiece. The film prepared after PVD has the advantages of high hardness, low friction coefficient, good wear resistance and chemical stability.
Electroplating is the process of plating a thin layer of other metals or alloys on the surface of certain metals using the principle of electrolysis. It is a process of using electrolysis to attach a layer of metal film to the surface of metal or other material parts to prevent Metal oxidation (such as rust), improve wear resistance, electrical conductivity, reflective properties, corrosion resistance (copper sulfate, etc.) and enhance the appearance. The outer layer of many coins is also electroplated.
Calendering Also known as calendering. The last process of heavy leather finishing. Using the plasticity of fibers under mixed heat conditions to flatten the surface of the fabric or roll out parallel fine oblique lines to improve the finishing process of the fabric luster. After the material is fed, heated and melted, it is formed into a sheet or film, cooled and rolled up. The most commonly used calendering material is polyvinyl chloride.
Flat Screen Printing The printing mold is a polyester or nylon screen (flower pattern) fixed on a square frame with a hollow pattern. The color paste can pass through the patterns on the flower plate, and the mesh is closed with a polymer film layer without patterns. When printing, the flower plate is pressed tightly against the fabric, the color paste is filled on the flower plate, and the scraper is used to scrape back and forth to make the color paste penetrate the pattern and reach the surface of the fabric. Flat screen printing has low production efficiency, but it has wide adaptability and flexible application, and is suitable for the production of small batches and multiple varieties.
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Spraying is a coating method that disperses into uniform and fine mist droplets by means of pressure or centrifugal force through a spray gun or disc atomizer, and applies them to the surface of the object to be coated. It can be divided into air spraying, airless spraying, electrostatic spraying and various derived methods of the above basic spraying forms, such as large flow and low pressure atomization spraying, thermal spraying, automatic spraying, multi-group spraying, etc.
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Film Forming is to heat and soften the film, and then apply external force to shape and cool the film to make the film 3D. The process is mainly divided into hot pressing and forming. The pressure of the mold causes the softened film to be molded in the cavity of the hot pressing mold, and then set after cooling.
The Glue Pouring Process is used to coat the surface of the product through the mixing of two kinds of glue, so that the surface of the product presents a crystal clear effect. The main function is to increase the surface effect, full-scale plastic dripping, partial plastic dripping, font shape glue potting effect, Filling effect, partial filling, weight control filling and other different effects.
Laser Bite Use high energy density laser to react with steel surface to form snake skin/etching pattern/pear field or other forms of texture. Make the product more beautiful and elegant: overcome the shortcomings of printing and spray paint that are easy to wear off; meet the visual requirements: because the surface of the product is as smooth as a mirror, it is easy to scratch, easy to be stained with dust and fingerprints, and there are defects in the forming process , Silk marks and ripples will undoubtedly be exposed on the smooth surface of the product, while some decorative patterns such as leather grain, orange peel grain, wood grain, rain pattern, matte surface, etc., can conceal the defects of the product surface during the forming process, so that The product has a beautiful appearance and meets the needs of vision.
Sand Blasting uses compressed air as the power to form a high-speed jet beam to spray the spray material (copper ore sand, quartz sand, corundum, iron sand, Hainan sand) to the surface of the workpiece to be treated at high speed, so that the outer surface of the workpiece surface looks or When the shape changes, due to the impact and cutting effect of the abrasive on the surface of the workpiece, the surface of the workpiece can obtain a certain degree of cleanliness and different roughness, so that the mechanical properties of the surface of the workpiece can be improved, thus improving the fatigue resistance of the workpiece and increasing the The adhesion between it and the coating prolongs the durability of the coating film, and is also conducive to the leveling and decoration of the coating.
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EDM is a special processing method that uses the electric erosion effect generated by the pulse discharge between the two electrodes immersed in the working fluid to erode conductive materials. Tool electrodes are usually made of electro-corrosion-resistant materials with good conductivity, high melting point and easy processing, such as copper, graphite, copper-tungsten alloy and molybdenum. During the machining process, the tool electrode also has loss, but it is less than the erosion amount of the workpiece metal, and even close to no loss.
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