色に関するブログ

カラーワークフローにおいて、品質管理は重要な要素の一つです。多くの場合には、ポータブル型分光測色計が使用されます。場合によっては、ベンチトップ型分光測色計がより適切な選択となります。 本日は品質管理にベンチトップ型分光測色計を選択する理由と、カラーワークフローを最良にするためのコツを紹介します。 品質管理にベンチトップ型分光測色計を選択する５つの理由 1 - 高精度である エックスライト社のポータブル型分光測色計は非常に高精度ですが、ベンチトップ型分光測色計はさらに最高の精度を持ち、測定機器間の誤差も少なくなっています。許容範囲が厳しい場合や、偏差が受入率（および廃棄率）に影響する可能性がある場合は、品質管理用のベンチトップ型分光測色計の購入を検討する必要があります。 2 - サンプルのサイズが小さい ポータブル型分光測色計の最大メリットはサイズと重量です。小型で、持ち運びが安易により、入荷から、生産、研究ラボまで、あらゆる場面で測色を行えます。 しかし、サンプルが比較的小さく、ベンチトップ型でも測色できる場合、ベンチトップ型分光測...

To establish a successful quality control program, you need good instrumentation, robust software, and trained users. But even with everything in place, there are some common pitfalls to watch for when using a spectrophotometer to analyze color quality. Measuring plastic parts with the X-Rite Ci7800 benchtop spectrophotometer. Top Five Color Measurement Pitfalls  1. Bad Standards and Samples Physical standards and samples don’t last forever. Careless handling and dirty devices can ...

Whether you’re producing textiles, automotive parts, or plastic pieces, color needs to remain consistent or the final product will be rejected. Unfortunately, there are many ways for color errors to creep in during manufacturing. Creating and using accurate digital color standards is one way to combat these errors. Digital color standards can be used in software to specify and communicate color, formulate colorants and raw materials, and control color quality. They give brand owners peac...

Appearance is more than just color. It’s an all-inclusive look at everything inherent to an object, including texture, gloss, transparency, translucency, and special effects like sparkle and shimmer. When viewed from different angles or under different lighting conditions, appearance effects can change our perception of color. That's why it’s important to control both color and appearance throughout design and development.  Durable goods brands use appearance effects to captur...

There’s been a lot of research around the role color plays in how we expect food to taste. The fact is, we judge flavor by the color of the food or drink, even before the first taste. We expect red foods to taste sweet like strawberries or cherries. White should taste like vanilla, and green is probably limey and tart or minty. Color cues can even determine whether we take that first bite. Most of us won’t even consider trying a food like mashed potatoes or pumpkin pie if it is ...

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...

At X-Rite Pantone, we pride ourselves on our ability to help customers specify, communicate, formulate, and produce consistent color. You’re probably familiar with our major markets, like plastics, industrial coatings, and print & packaging. You may also be aware of the more “common” things we measure, like paint, printed surfaces, and textiles. But, as you look for the emergency exit on a plane, watch a butterfly float by, or choose the freshest package of cheese from the ...

When judging color, background can be a major distraction for the human eye. In fact, surrounding colors and patterns can actually change the perception of the color you’re trying to focus on. One of the wonderful things about color measurement instruments like colorimeters and spectrophotometers is that they can’t be distracted. They aren’t susceptible to variables such as fatigue, age or color vision deficiency. They aren’t even aware that a surround exists – they...

No matter what you’re manufacturing, taking spectral measurements will help ensure your color remains accurate and consistent throughout your production run. When choosing the best spectro for your needs, your first consideration should be the type of surface you’ll be measuring. Measuring reflective surfaces poses a challenge because the effect of gloss can actually change the color appearance of a sample. The surface reflection of light is what causes the gloss effec...

From laundry soap to paper to socks, it seems that manufacturers everywhere are trying to achieve the brightest whites, and consumers are certainly buying in. These companies use chemical dyes called OBAs to make their whites “whiter” and stay ahead of the competition. OBA stands for optical brightening agent. You may also have heard it called FWA (Fluorescent Whitening Agent), optical brightener, fluorescent dye, or even just whitener. An optical brightening agent is a special type of dye that ...

Win an iPad! NPE 2015, The International Plastics Showcase, will be held in Orlando, Florida from March 23 through the 27th. It’s a great opportunity to learn about current trends and see live demonstrations of the latest technologies from every sector of the plastics industry. With more than 400 exhibits, it’s expected to be the biggest plastics showcase ever and a great chance to get up-close and personal with product experts in your field. X-Rite and Pantone are thrilled to once again be part...

Color mistakes are expensive, and can happen anywhere in the process – during specification, formulation, manufacturing, assembly or – worst case – all of the above. Colors easily drift from raw materials to parts assembly and production – one loose screw in a projection molder and the color will shift. When productions and parts are created in various locations, things get further complicated. Who has time for rework? And who wants to explain the wasted time and materials? Every mistake is expensive. Adding mistakes to mistakes across the entire process is very expensive.

In addressing these issues, data is your friend. Measuring color, across the supply chain and during manufacturing and assembly is the only true way to ensure that color remains consistent. This is foundational to creating a color-managed workflow, and X-Rite’s new Ci7x00 series of benchtops sets a new benchmark for the industry. With up to five aperture sizes and three automated UV filters, the Ci7x00 devices can measure pretty much any surface, size and texture, including opaque, transparent and translucent, wet or dry, with or without gloss. Couple this with customer-friendly service and on-site maintenance for many issues, and you will be the color hero in your department.

So how do you know the color you measured is the color you want?