色に関するブログ

The color of liquid is one of the most difficult things to control during production. But it’s important. Would you choose a bottle of juice or cleaner that is lighter in color than the other bottles on the shelf? What about cough syrup?     Liquid is hard to measure because it can range in transparency from translucent to opaque. It’s also hard to hold, and the measurement device can’t touch it or the optics and the sample will both be contaminated.   Today&rsq...

As digital printing continues to grow, many printmakers are moving beyond traditional media to create artwork on substrates like wood, acrylic, textiles, and backlit materials. While the results can be beautiful, achieving exceptional print quality on these materials can be challenging.   Enter the i1Pro 3 Plus. With its large aperture, polarization and transmissive capabilities, this new member of X-Rite’s i1Pro Family can create color profiles for substrates that are otherwise ...

When choosing a food product, consumers demand consistency in both taste and appearance. While a lighter batch of oranges may still produce a delicious juice blend, a pale color can jeopardize USDA approval and leave consumers questioning the quality. Unfortunately for food and beverage manufacturers, the color of food – especially drinks like fruit juice and blended cocktails – is one of the most difficult things to control during production. Here’s why. 1. Liquid is hard to...

ベンチトップ分光測色計は、ガラス、液体、繊維など、さまざまな不透明、透明のサンプルの色を透過または反射モードで測定・定量化することができます。本記事では、透過測定と反射測定の違いを説明し、どのベンチトップ分光測色計を選ぶと良いか、ご説明します。 透過測定と反射測定 透過測定と反射測定が可能な分光測色計は、フラッシュを照射し、透過または反射された光を測定し、360～750nmの間のすべての光の波長の分光透過率または分光反射率を作成します。反射して戻ってくる主波長がその色を示します。青紫、藍、そして青は、波長が短く、400～550nm。緑はその中間で、550～600nm。黄、オレンジ、赤は最も長い波長を示します。OBAと蛍光剤含む場合は、100%以上のピークに達します。 反射測定の分光測色計は、サンプルの表面に光を照射し、10ナノメートル単位で反射率を測定することで色を測定します。完全に不透明な表面を測定する場合、反射測定の分光測色計で十分です。 一方、透過測定の分光測色計は、サンプルを通して光を投影できます。反対側にある検出器は、透過した光の波長と量をとらえ、平均透過率も数値化できま...

Spectrophotometers are color measurement devices used to specify and communicate color and monitor accuracy throughout production. There are spectrophotometers to measure just about anything, from liquids and plastics to paper, metal and fabrics. Brand owners, designers, lab techs and quality control professionals rely on them to ensure color remains consistent, from the time it’s specified until final quality check, in just about every industry. This Ci7800 benchtop spectrophotometer is measuri...