How To Print On Corrugated Plastic

How to Print on Corrugated Plastic: A Comprehensive Guide

Corrugated plastic, also known as corrugated polypropylene or coroplast, is a versatile and durable material used for a wide range of applications, from signage and real estate signs to temporary displays and political signs. Its lightweight nature and resistance to weather make it a popular choice. But how do you print on it? This guide will walk you through the various methods and considerations.

Choosing the Right Printing Method

The best method for printing on corrugated plastic depends on several factors, including the size of your print, the quantity you need, your budget, and the desired quality. Here are some popular options:

1. Direct-to-Substrate Printing (DTSP)

DTSP utilizes specialized UV-curable inks that are directly applied to the coroplast sheet. This method is ideal for:

• High-quality images and graphics: DTSP provides vibrant and long-lasting prints.
• Small to large format printing: It can handle both individual signs and large-scale projects.
• Durable prints: UV inks are resistant to fading, scratching, and weather damage.

Considerations: DTSP requires specialized equipment and is typically more expensive than other methods for smaller print runs.

2. Solvent Ink Printers

These printers use solvent-based inks that are absorbed into the corrugated plastic's surface. This method is often chosen for:

• Cost-effectiveness for large print runs: While initial investment can be high, the per-unit cost decreases significantly with higher volume.
• Outdoor durability: Solvent inks offer excellent resistance to UV light and water damage, making them suitable for outdoor signage.
• Sharp, vibrant prints: Solvent inks produce high-quality prints comparable to DTSP.

Considerations: Solvent inks have strong odors and require proper ventilation. They also might require specialized handling and disposal practices.

3. Latex Ink Printers

Latex ink printers are a popular choice for businesses that prioritize eco-friendliness and high print quality.

• Eco-Friendly: Latex inks are water-based and contain fewer volatile organic compounds (VOCs) compared to solvent inks.
• High-quality images: Latex inks produce vibrant and durable prints resistant to scratching and fading.
• Versatile: Latex printers can handle various substrates, including corrugated plastic.

Considerations: Latex printers might be a more expensive initial investment compared to solvent printers.

4. Screen Printing

Screen printing is a suitable method for:

• High-volume, simple designs: Ideal for repetitive designs like logos or text.
• Cost-effective for large quantities: The upfront cost of creating screens can be offset by the low cost per print for large orders.
• Durable prints: Screen printing produces prints that adhere well to corrugated plastic, resulting in long-lasting signage.

Considerations: Screen printing is less suitable for complex designs or photographic images; it's better for simpler, bold graphics.

Preparing Your Corrugated Plastic for Printing

Regardless of the chosen method, proper preparation is crucial for optimal results:

• Clean the surface: Remove any dirt, dust, or debris with a clean cloth and mild detergent.
• Ensure it's dry: Allow the plastic to dry completely before printing to prevent ink smudging.
• Prime the surface (if needed): Some printing methods might require a primer to enhance ink adhesion. Check with your printer or ink manufacturer for recommendations.

Choosing the Right Printer

The ideal printer will depend on your specific needs and budget. Consider factors like:

• Print size: Do you need a small-format printer for individual signs or a large-format printer for billboards?
• Print volume: How many signs do you need to print?
• Print quality: What level of detail and color accuracy is required?
• Ink type: Are you looking for eco-friendly, durable, or cost-effective inks?

By carefully considering these factors, you can choose the best printing method and printer to produce high-quality, durable prints on corrugated plastic. Remember to always follow the manufacturer's instructions for both the printer and the corrugated plastic itself.