A manufacturer of membrane switch buttons explains the components of ink used in membrane switches.

Release date:

2022-05-07

　　 Manufacturer of Thin-Film Push-Button Switches Please explain the components of film switch ink.

Manufacturer of Thin-Film Push-Button Switches

　　The manufacturer of membrane key switches informs that the ink used in membrane switches typically consists of components such as pigments, binders, fillers, and additives.

　　1. Pigments play a crucial role in the coloration of film switch inks and directly influence several key properties of the ink.

　　Film Membrane Switch Manufacturer: Pigments are highly dispersed powders that come in colors, black, or white, and are insoluble in both water and organic solvents. Inorganic pigments are typically oxides of colored metals or certain insoluble metal salts. These inorganic pigments can be categorized into natural inorganic pigments and synthetic inorganic pigments. Natural inorganic pigments primarily refer to mineral-based pigments. On the other hand, organic pigments are derived from colored organic compounds, which themselves can be further divided into natural and synthetic categories. Today, synthetic organic pigments are widely used due to their extensive variety, comprehensive color range, and superior performance compared to inorganic pigments.

　　 Manufacturer of Thin-Film Push-Button Switches Please note that the following text is a direct translation from Chinese to English, maintaining the original meaning and tone: It should be noted that the pigments used in printing inks have very high requirements, particularly in terms of color, dispersibility, lightfastness, and transparency. Colored pigments must closely match spectral colors with maximum possible saturation. Among the three primary inks—magenta, cyan, and yellow—the pigments used must exhibit excellent transparency. Moreover, all pigments must not only be water-resistant but also capable of quickly and uniformly separating from the binder. As a result, the pigments should not absorb excessive amounts of oil. Additionally, they must demonstrate resistance to alkali, acid, alcohol, and electrical potential.

　　2. Viscous materials, commonly known as blending oils, are the primary components of film switch inks. They serve to disperse pigments and impart the ink with appropriate adhesion, fluidity, and transfer properties. After printing, these materials help fix the pigments firmly onto the printed surface. Binders can be derived from various substances, including diverse vegetable oils—many of which are widely used in ink formulations—and mineral oils can also be formulated into binders. Additionally, solvents and water can be utilized as part of binder systems, while a range of synthetic resins are suitable for creating high-performance binders.

　　Film keypad switch manufacturer: The rheology, viscosity, neutrality, acid value, color, water resistance, and printing performance of the ink primarily depend on the binder. The same pigment can be used with different binders to produce various types of inks, while using the same binder with different pigments will still yield inks of the same type—since the fundamental properties of the ink cannot be altered. Therefore, aside from the pigment, the quality of film switch ink largely hinges on the choice of binder.

　　3. Fillers are white, transparent, translucent, or opaque powdery substances primarily used as fillers. Properly selected fillers not only reduce the amount of pigment required, thereby lowering costs, but also help adjust the performance characteristics of film switch inks—such as viscosity and fluidity—while enhancing the sensitivity of formulation design.

　　4. Manufacturer of Thin-Film Push-Button Switches Additives refer to auxiliary materials used in the manufacturing and printing processes of film switch inks, designed to enhance the performance characteristics of the ink itself. When inks formulated based on their basic components still fail to meet specific requirements or cannot adapt to changing conditions for optimal printing performance, a small amount of supplementary additives—such as drying agents, anti-drying agents, thinning agents, tack reducers, plasticizers, and others—is introduced to address these challenges effectively.

 

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