Proof to Print

Ensuring Consistent Color from Proof to Final Print

Setting clear expectations before production begins is essential in custom printing. This process can be challenging. The proofing method used often differs from the printing method used for mass production. Let’s explore how we handle color consistency between proofs and the final printed product.

What Is Proofing in Printing?

Proofing shows how a design will appear once printed. However, the equipment used for proofs differs from high-volume presses. Contract proofers use inkjet printers. Commercial presses use lithographic (offset) or flexographic methods. Some digital presses work for both proofing and production.

Why Proofing and Presses Differ

Inkjet proofers use 6 to 11 colors, while lithographic presses typically use 4 colors (CMYK). These methods cause variations in color, finish, and capability. Paper type also plays a role. Glossy paper yields vibrant colors, while uncoated paper produces lighter, softer tones.

How We Achieve Consistent Color

To ensure color consistency, we fine-tune each part of the process. This includes PDF workflows, CtP calibration, and ink consistency. We also monitor press mechanics and consumables. With a stable process in place, we use dot gain curves and ICC profiles to adjust the color.

Two Ways to Match Proof to Press

There are two main methods for matching a proof to the press output:

• Method 1: Matching the Press Output – Here, we adjust the proofer to match a specific press. This works well for in-house presses but may not provide the lowest Delta E.
• Method 2: Using the G7 Standard – This method uses the same G7 target for both the proofer and the press. It ensures color consistency across different equipment. The proofer and press rely on a common reference.

Proofing Stock and White Point

Choosing the right proofing stock is crucial for accurate color simulation. Inkjet proofing stocks come in two types:

• Coated Stocks – Glossy finishes with vibrant colors.
• Uncoated Stocks – Matte finishes with softer colors.

The white point of the proofing stock is also vital. This refers to the paper’s ability to reflect light. A paper with a similar white point to the press stock gives a more accurate color simulation.

The Role of Our Advanced Proofing Technology

At Phillips Printing, we use an 11-color inkjet proofer. This closely simulates the color we achieve with our offset presses. Whether we use coated or uncoated stocks, we ensure accurate proofing. Our presses, proofers, and digital printers meet Idealliance color space standards.

Setting Expectations During the Proofing Stage

Proofing helps set expectations early. It also lets us fine-tune graphics before production. This reduces the risk of surprises and ensures the final product matches the client’s vision.

Contact Us for More Information

If you have questions about proof-to-print or color consistency, contact Phillips Printing. Call us at 888-ASK-PHIL. We’ll ensure your printed product meets the highest quality standards.