なぜ分光測色計の校正が必要なのか? 分光測色計は現在、ほとんど100%デジタル化されています。実際、電球以外、アナログ部品はほとんどありません。デジタルは、アナログと比べ、安定性が高いものの、 許容誤差が非常に小さくなっています。このような厳しいスペックに収まるため、定期的に分光測色計の校正を行う必要があります。 電球の安定性 分光測色計と電球を使用し続けると、性質が変わり始めます。分光測色計の校正は、 このような電球の光生性能を補正するためです。慎重に校正を行うことで、電球の寿命が尽きるまで、何か月、あるいは、何年も安定した測定が可能になります。 タイルとレンズの清浄度 装置内には、色空間における2つの既知ポイント、すなわち定義された白と黒の設定があります。工場では、白のキャリブレーションタイルを定義するため、完全な反射率曲線が作られ、さらにブラックトラップ内の黒点を定義するため、完全な反射率曲線が作られました。白と黒の正確な位置は、キャリブレーションのため、デバイス内に設置されました。 白いタイルが少し汚れると、白い点が横軸の黒に向かって下がります。白点だけでなく、その線上にあ...

Posted November 03, 2022 by Mike Huda

色は大事だと、よく言われています。なぜ大事なのか知っていますか。実際、生産工程において、色はとても重要な要素です。しかし、残念ながら、多くのメーカーは、色を正しく表現することが以前と比べ、はるかに難しくなったと気づいています。なぜなら、取引先のブランドは、より厳しい許容範囲を満たすことを求めています。 その理由の一つは以下のとおりです。 メタリックパッケージ、真珠光沢仕上げ、カスタムファブリック、鮮やかな新色など、色技術の進捗は顧客を魅了する一方で、生産における一貫性を持たせることがより難しくなっています。 たとえば、コンポジットデッキを例としてあげましょう。以前はグレーかブラウンの2択しかありませんでした。そして、デッキ全体に調和が取れていけば、お客様は十分満足されました。しかし、今では、深い木目模様やエキゾチックな色など、多くの選択肢があります。そのため、メーカーは2~3色ではなく、数10色を管理しなければなりません。統一感を出すために、より難しくなりました。 パッケージもそのひとつです。かつて、印刷された箱のみが並んでいたお店でも、今はホイルパウチやブリスターパック、マルチ基...

Posted November 01, 2022 by Cindy Cooperman

In a perfect world, you should be able to put ink in the press, run a job, and achieve color consistency. Unfortunately, every year flexographic and gravure printing operations waste ink, substrate, and press time trying to get color right. Although advancements in technology have made it easier to achieve color accuracy, the variables that affect color still exist. In this three part series we’ll share over two dozen reasons your color might be wrong at press side. Today’s topic lo...

Posted October 18, 2021 by Scott Harig

Softproofing – the ability to simulate how an image will appear in print right from your monitor – can save a lot of time and effort in your printing workflow. Although many photographers already rely on it, anyone who designs, approves, prepares or prints brand and color-critical images can also benefit. With softproofing, designers can create with actual specified colors (no more trial and error!), project owners can approve layouts without physical proofs (predictable color!), and...

Posted August 20, 2020 by Mark Gundlach

Inter-instrument agreement is a very important consideration when selecting color measurement devices for your workflow. Unfortunately, it’s such a technical topic that it leads to a lot of confusion about what it means and why it’s important. The Ci7860 sphere benchtop spectrophotomter is has an inter-instrument agreement specification of 0.06 average Delta E*, enabling brands to create the most precise master color standards. Today we’re making it as simple as possibl...

Posted October 03, 2019 by Mike Huda

If you recently invested in a spectrophotometer or colorimeter, you know there’s a lot more to learn about color measurement than just how to use your new device. To help you begin exploring the exciting world of color, we’ve compiled seven blogs that explain how to set up your color measurement device, care for it, and use it to its maximum potential. 5 Tips for Setting Up Your Spectrophotometer Using a spectrophotometer (“spectro” for short) to measure color doesn...

Posted July 25, 2017 by Mike Huda

With today’s complex cross-media campaigns, accurate profiling is even more important for managing customer expectations across the color supply chain. Our i1Pro 2 solutions help photographers, videographers, prepress and digital printers create profiles for the best color on monitors, scanners, projectors, printers, and online web-to-print submission tools. But with so many to choose from, how do you know which is the right tool for your color workflow? Whether you’re looking to add a new comp...

Posted April 11, 2017 by Ray Cheydleur

If you’re a commercial printer who wants to improve color quality and consistency, this blog is for you. X-Rite color management solutions for print and packaging deliver excellence in quality control, formulation and automation. Ray Cheydleur is a printing industry veteran of more than 20 years, a standards guru, and our Portfolio Manager for Printing and Imaging Products. Passionate and very knowledgeable about color, he has a talent for helping printers improve their color quality and c...

Posted November 10, 2016 by X-Rite Color

We’ve all done it. Snapped a picture on a digital camera or smart phone, sent it to the computer, made a few adjustments, then sent it off to print…. only to be disappointed. The sky looks green. Grandma’s hair is purple. The contrast is so far off you can’t even see that cute little puppy. Stupid camera. The struggle is real for so many people, from hobbyist to professional photographers, graphic designers, and professional printers. Let’s look into this all-too-common mystery of the off-color ...

Posted May 18, 2016 by Bruce Wright

In a perfect world, you should be able to put ink in the press and run a job.  Unfortunately, there are so many variables that affect color that printing operations often waste thousands of pounds of substrate, and thousands of dollars in press time, making adjustments. Advancements in technology have made it easier to measure color, but the variables still exist. To help you over come them, we’ll be featuring a series that points out many of the reasons your color could go wrong at press side....

Posted February 01, 2016 by Scott Harig