Screen Printing Squeegee: All You Need to Know
The article provides an in-depth look at Screen Printing squeegees, covering materials, durometer values, shapes, and maintenance. It offers practical tips and storage solutions, emphasizing the importance of proper care and usage to achieve optimal printing results.
Material Science
- Polyurethane Blades: These blades exhibit impressive chemical resistance, wear-resistance, and retain elasticity over time, making them an industry favorite. The manufacturing could involve processes like casting in a centrifuge or using flat form tools.
- Handle Material: Aluminum handles are corrosion-resistant, which is vital in a setting where inks and cleaning solvents are frequently used.
Durometer Dynamics
Durometer Scale: The scale ranges from 0 to 100, where a higher number indicates a harder material. In screen printing, common durometer ratings range from 60 (soft) to 90 (hard).
Price Range
Layering
Triple-layer squeegees, with different durometer ratings for each layer, allow for a combination of rigidity and flexibility, optimizing ink shear and deposit.
Shape Specifics
Edge Geometry: The edge of the squeegee blade can be square, rounded, or beveled, each serving different purposes in terms of the amount and manner of ink deposit.
Colour coding
Lack of standardized colour coding among squeegee manufacturers necessitates a durometer gauge, ensuring you achieve the precise ink deposit crucial for impeccable screen prints. Just compare these two squeegee manufacturers to see the difference, Pleiger Plastics Company USA vs. Trelleborg.
Maintenance Mastery
Cleaning: Specialized cleaning solutions and techniques can help preserve the squeegee’s integrity, removing ink residues without harming the blade material.
Sharpening: Regular sharpening helps maintain a crisp edge, crucial for achieving clean prints. Sharpeners come in manual or automatic models.
Squeegee Sharpener
Watch this video on YouTube.
Screen printing squeegees Washing machines
Watch this video on YouTube.
Alternatively, a variety of tools are available to maintain or modify your squeegee, ensuring it stays in top condition.
- Screen Printing Squeegee Washing Machine: A dedicated automatic machine for swift and thorough cleaning of your squeegee.
- Clipper: Utilized for rounding the corners of the squeegee, helping to prevent mesh wear.
- Knife Cutter: Ideal for precisely cutting the squeegee to your desired length.
- Squeegee Sharpener: Available in both automatic and manual versions, perfect for keeping the edges of your squeegee sharp and ready.
- Manual Edge Grinding Tool: A manual tool designed for refining the edges of your squeegee, ensuring a smooth glide across the screen.
Ideal storage: for a Screen Printer’s Squeegee entails ensuring the edge remains untouched. Illustratively, a freely hanging squeegee epitomizes safety. Storing them for easy identification not only aligns with lean production principles but also invites either purchasing or crafting specialized fixtures for secure placement.
Squeegee Standing Independently
Pre-fabricated Squeegee Holders
DIY Version
Usage Techniques
- Printing Pressure: Too much pressure can cause the squeegee to bend, affecting the ink deposit and image clarity. Finding the right pressure is key for quality prints, in general, however, one can say that the squeegee should not bend, which is unfortunately seen too often, often with the background white.
- Angle and Speed: The squeegee angle and the speed of the stroke affect the ink shear and deposit, requiring a good understanding for optimal results. The straighter the squeegee is held, the less colour. A normal 45-degree angle is optimal. But you have to try it out because which printing ink is used and EOM on the mesh play a decisive role here.
These same rules apply to manual and automatic printing.
Sustainable Shifts
Eco-Friendly Models: Squeegees made from recycled materials (see image below) or with replaceable blades can help reduce waste, aligning with eco-conscious practices.
While recycled materials for squeegees appear promising, they are often permanently glued, making aluminum handles more economical. With aluminum, you can easily replace or rotate the squeegee, extending its usability if it’s still in good shape.
Customization and Innovation
Ergonomic Designs
Ergonomically designed handles can significantly reduce fatigue, especially in a high-volume printing setting.
Watch this video on YouTube.
Technological Advancements Double-blade
Action Engineering claims: “Boost printing speed by 30% with the Double Blade Squeegee for automatic Screen printing, optimizing ink penetration and print quality.”. My personal experience is, that it can help to clear the mesh in one stroke. But if you gain 30% production speed, sounds a bit overwhelming. Source
Budgeting and Cost Management
Considering the cost of replacing or maintaining squeegees and budgeting for quality tools is vital for both hobbyists and professional screen printing operations.
The squeegee, though seemingly straightforward, holds a realm of complexity and mastery that, when well-understood and well-navigated, can significantly elevate the screen printing art and craft.
Additional Tip
After perusing this article, aluminum handles should emerge as your preferred choice. A handy tip: metal holders are typically secured with screws. Before mounting your squeegee, lightly grease the screw threads. This precautionary step counters the seizing effect prolonged exposure to water or other solvents has on the screws, making future unscrewing endeavors much simpler.
Be sure not to miss the Squeegee Tip of the Day!
Q&A
What is the best Squeegee Handle for Screen Printing
We always advise going for an Aluminum Handle, as it is easy to clean and last a lifetime.
Screen Printer Squeegee are made from
Good squeegees are made with polyurethane ((PUR and PU) is a polymer), which has the advantage of chemical resistance, wear-resistance and retains its dynamic elastic properties.
Why Squeegees have different Colors
The colour indicates the durometer it should have. But as we have no worldwide standard concerning squeegee, it’s up to the Manufacturer what colour code he gives for the durometer.
What squeegee shape is best for screen printing
The squeegee shape, insurance the amount of ink it lay down. We in screen printing, use mostly the round or sharp squeegee. Round for more ink deposit and the sharp for less deposit.
What means durometer by a squeegee
The durometer indicates the hardness of the squeegee, so harder it is, so higher the durometer. Screen printer work in a range of 65 soft to 90 hard.
How are Squeegee are sold
You should be able to buy squeegees for screen printing in meters, or properly cheaper in rolls.
The squeegee, though seemingly straightforward, holds a realm of complexity and mastery that, when well-understood and well-navigated, can significantly elevate the screen printing art and craft.
Should any queries arise, feel free to share them in the comments section below.
The post Screen Printing Squeegee: All You Need to Know appeared first on ScreenPrintingNow.com.
