Thursday, January 11, 2024

What Are Screen Printed Inks And When Are They Your Best Option


Screen printing inks are specialized inks used in the screen printing process, a widely used method for printing on various surfaces, including fabric, paper, metal, plastic, and more. These inks are designed to adhere to the chosen substrate and create vibrant, durable prints.
  1. Plastisol Inks: Plastisol is the most common type of screen printing ink. It is a PVC-based ink that doesn't air-dry. Instead, it requires heat to cure and solidify. Plastisol inks create a smooth, opaque finish and are known for their durability and vibrant colors. They work well on various fabrics and are suitable for printing on dark-colored garments.

  2. Water-based Inks: Water-based inks are an eco-friendly alternative to plastisol inks. They contain pigments or dyes suspended in water and require air-drying or heat-setting to cure. Water-based inks provide a softer feel compared to plastisol and are suitable for lighter-colored fabrics. They are often used for designs that require a more breathable print.

  3. Discharge Inks: Discharge inks are a type of water-based ink that contains a discharge agent. When exposed to heat, the discharge agent removes the dye from the fabric, creating a soft, breathable print. Discharge inks are commonly used for printing on dark-colored garments and can produce a vintage or distressed look.

  4. UV Inks: UV-curable inks contain special compounds that harden when exposed to ultraviolet (UV) light. UV inks are versatile and can be used on a variety of substrates, including textiles. They provide a durable and high-gloss finish and are suitable for applications where quick curing is essential.

  5. Solvent-based Inks: Solvent-based inks contain pigments or dyes dissolved in a solvent carrier. They are less common in textile screen printing but are used in other applications. Solvent-based inks may be suitable for printing on non-absorbent surfaces, such as plastics or metals.

  6. Metallic and Specialty Inks: Screen printing allows for the use of metallic and specialty inks to create unique effects. Metallic inks contain metallic particles for a shiny finish, while specialty inks can include additives like glitter or puff agents for raised, textured prints.

The choice of screen printing ink depends on various factors, including the substrate, including desired print characteristics, and the printing process itself. Plastisol remains the go-to ink for many textile screen printing applications due to its versatility and durability, this option works great for 100% polyester sun shirts and cotton tees. But water-based and discharge inks are gaining popularity for their environmental benefits and softer feel but they are not your best choice for UPF+50 sun protection apparel.

Before ordering, explore different options with your apparel designer to find what screen printed inks with produce your desired outcome.

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