Color printing, color paste, and essential oils are all techniques used in the surface coloring of metal products, each serving specific purposes and achieving distinct effects:
Color Printing: This refers to techniques like offset printing, silk screen printing, and UV printing, which are used to achieve precise graphics and color effects on metal surfaces. These methods are typically employed for specific areas of metal products where main coloring techniques like embossed soft enamel or limitation hard enamel cannot fulfill the requirements for precise patterns or color gradients. For example, badges may use color printing to achieve photographic-quality images or precise color transitions in specific areas.
Color Paste: While not a mainstream choice in modern metal craftsmanship, color paste plays a unique role where vivid or strong coverage is needed on small areas. Its use is mainly concentrated in handcrafting or restoration processes where it can enhance or strengthen original colors, especially valuable in detailing.
Essential Oils: In the treatment of metal surfaces, essential oils are primarily used as color stabilizers. They are added to electroplating, paint, or ink to form a protective film that prevents color fading and wear, thus prolonging the aesthetic and durability of the product. Essential oils are not only protective but are also selected with environmental and health considerations in mind, ensuring long-lasting protection while complying with environmental standards.
