一、着色工艺主要是指包材外观可以呈现的颜色和质感效果。1、电化铝:铝制外表,就一层包裹在内层塑料上。2、电镀(UV):与喷涂相比效果出来的是亮色的。电镀是指在含有欲镀金属的盐类溶液中,以被镀基体金属为阴极,通过电解作用,使镀液中欲镀金属的阳离子在基体金属表面沉积出来,形成镀层的一种表面加工方法。电镀出来的效果比较光亮,一般用在瓶盖泵头居多,瓶身电镀也有,费用相对高一些。电镀工艺不是很环保,年底经常
一、着色工艺
主要是指包材外观可以呈现的颜色和质感效果。
1. Electrolytic aluminum: An aluminum surface, just a layer wrapped around the inner plastic.
2、Electroplating (UV): The result is a bright color compared to spraying.
Electroplating refers to a surface processing method in which the substrate metal to be plated acts as the cathode in a solution containing salts of the metal to be plated. Through electrolysis, the cations of the desired plating metal in the plating solution deposit onto the surface of the substrate metal, forming a plating layer.
The electroplating effect is relatively bright, and it is mostly used on bottle cap pumps, while electroplating on the bottle body also exists, but the cost is relatively higher. The electroplating process is not very environmentally friendly, and it is often subject to environmental inspections at the end of the year, which can affect delivery schedules.
3、Spraying: The color produced is a matte finish compared to electroplating.
Spraying refers to a coating method that disperses into a uniform and fine mist through a spray gun or disc atomizer, using pressure or centrifugal force, applied to the surface of the object being coated. In the application of cosmetic bottles, it includes several treatment methods such as internal spraying of the inner bottle, external spraying of the outer bottle, and spraying on the surface of the bottle body.
Inner bottle outer spray: This refers to spraying on the outside of the inner bottle (liner), creating a noticeable gap between the outer appearance and the outer bottle.
外瓶内喷:是在外瓶的内侧进行喷绘从外观看上去面积较大。
外瓶外喷:就是直接在瓶身外表进行喷涂工艺。
4、Frosted: A layer of matte texture.
The principle of frosted glass is to friction the accelerated abrasive particles against the surface of the bottle, achieving rust removal, deburring, removal of oxide layers, or surface pretreatment, which can change the smoothness and stress state of the bottle surface.
5. Drawn bag gold and silver: It is actually a film, and upon careful observation, you can find the connecting seams on the bottle body.
6. Secondary oxidation: This is a secondary oxidation performed on the original oxide layer, achieving a pattern where the glossy surface covers a matte surface or a matte surface appears with a glossy pattern. It is often used in the production of logos.
7、Injection Molding Color: It is the process of adding color powder to the raw materials during product injection molding or using color masterbatch directly as the material. The process is relatively inexpensive.
二、印制工艺
Mainly refers to various processes of printing text and patterns on bottles.
1、Silk Screen:
Use silk screen as the base and create a silk screen printing plate with graphics and text through the photochemical plate-making method. Silk screen printing consists of five main elements: silk screen printing plate, squeegee, ink, printing table, and substrate. The basic principle of printing utilizes the fact that the mesh holes in the graphic and text part of the silk screen printing plate can allow ink to pass through, while the mesh holes in the non-graphic and text part cannot allow ink to pass through.
The effect after printing has a明显的凹凸感. Because it is a layer of ink. The regular screen-printed bottles (cylindrical) can be printed in one go. Other irregular shapes incur a one-time fee. Color is also a one-time fee. There are two types: self-drying ink and UV ink. Self-drying ink is prone to peeling off over time and can be wiped off with alcohol. UV ink has a明显的凹凸感 and is difficult to wipe off.
2、Hot stamping:
Hot stamping, also known as hot printing, is a printing decoration process. A metal printing plate is heated, and foil is placed on the printed material to impress gold text or patterns. It utilizes the principle of thermal transfer to transfer the aluminum layer from the aluminum foil to the surface of the substrate to create a special metallic effect. Since the main material used in hot stamping is aluminum foil, hot stamping is also called aluminum foil hot printing.
3、Water transfer printing:
It is a method of printing colorful patterns from transfer paper onto the surface of three-dimensional products using water pressure. The printed patterns are inconsistent. Moreover, it is more expensive.
4、Heat Transfer:
Heat transfer printing is a technology that prints patterns or designs onto heat-resistant adhesive paper, transferring the ink layer's patterns onto the finished material through heating and pressure. Using heat transfer film printing allows for multi-color designs to be printed in one go without the need for color registration, and even simple equipment can produce realistic patterns. Heat transfer printing is often used for large quantities and complex printed products. It involves applying a layer of film to the surface. The price is relatively high.
5、Offset printing:
Often used for aluminum-plastic hoses and all-plastic hoses. If the offset printing is for colored hoses and white is needed, silk screen printing must be used, as offset printing will show the background color. Sometimes, a layer of glossy film or matte film may be attached to the surface of the hose.
6、3D Relief UV Printing
3-layer printing function, white, color, and glossy 3-layer printing can be done at once. When printing on any medium, pre-treatment is done using white ink with reproducible color fidelity. At the same time, an additional layer of glossy coating is added to achieve a more aesthetically pleasing printing effect. This process tends to be relatively expensive and is not as widely used.