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What Is CIELAB Color Space?

Simultaneous Color and Haze Measurements Simplifies Quality Control in Hair Gloss Treatments

Measuring Color and Haze in Functional Beverages is Essential to Ensure Product Appeal

The Right Spectrophotometer Can Improve Quality Control of Natural Stone Sealants

traffic cones on road

Spectrophotometers Help Manufacturers Keep Traffic Cones Safety Orange

What is the stability of the APHA/Pt-Co/Hazen liquid color standards?

Is it possible to create ASTM traceable haze standards above 30%?

Measuring the Color of Clear Liquids

Human Observers

Objects

Light Sources and Illuminants

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Blogs

What Is CIELAB Color Space?

Posted on September 3, 2020 by Ken Phillips

The human eye can see millions of colors. However, it won’t always distinguish colors from one another accurately. You may perceive two slightly different colors as the same or see differences in objects of identical color depending on your viewing angle and lighting. This creates challenges when communicating about color. To reproduce an exact desired […]

Posted in Uncategorized

Simultaneous Color and Haze Measurements Simplifies Quality Control in Hair Gloss Treatments

Posted on October 3, 2018 by Ken Phillips

Hair gloss products help customers increase shine and enhance color. Image Source: Shutterstock user Rudo film Hair gloss treatments offer an effective new way to repair damaged hair and add a youthful appearance to dull locks, yet without proper haze and color measurement, many formulations fall short in creating the appearance that consumers desire. While […]

Posted in Uncategorized

Measuring Color and Haze in Functional Beverages is Essential to Ensure Product Appeal

Posted on October 3, 2018 by Ken Phillips

The color of a beverage will have a direct impact on how consumers perceive the product. Image source: Ben Kolde on Unsplash  Functional beverages—like energy and nutraceutical drinks—are growing in popularity among consumers who need a boost of energy, add more vitamins and minerals to their diets, or address specific health concerns. Based on a […]

Posted in Uncategorized

The Right Spectrophotometer Can Improve Quality Control of Natural Stone Sealants

Posted on October 3, 2018 by Ken Phillips

Sealants are critical for protecting natural stone finishes, such as marble countertops. Image Source: Shutterstock user Jodie Johnson The color and clarity of natural stone sealants play an important role in not only protecting the surface of the stone, but creating aesthetic appeal. Indeed, while designers often spend significant time carefully choosing a stone, the […]

Posted in Uncategorized

Spectrophotometers Help Manufacturers Keep Traffic Cones Safety Orange

Posted on April 7, 2017 by Ken Phillips

When I’m walking through my neighborhood I can get a little lost in my thoughts. Somehow I tune out all hurly-burly of the busy pedestrians and delivery trucks bustling in the narrow square. I was walking like this the other day, paying no attention to my surroundings, when in my path I spotted an orange […]

Posted in Color in Building Materials, Color in Plastics, Uncategorized

What is the stability of the APHA/Pt-Co/Hazen liquid color standards?

Posted on June 1, 2015 by Ken Phillips

Per Section 6.2 of ASTM D1209 Standard Test Method for Color of Clear Liquids (Platinum Cobalt Scale): “When properly sealed and stored the standards are stable for at least a year and do not degrade markedly for 2 years.”  Our industrial experience is that if kept properly stoppered in amber bottles, the APHA/Pt-Co/Hazen visual color […]

Posted in Uncategorized Tagged 500, APHA, APHA color standard, Hazen, Pt-Co, PtCo, stability Leave a comment

Is it possible to create ASTM traceable haze standards above 30%?

Posted on September 12, 2014 by Ken Phillips

The current, available ASTM D1003 Haze Standards have nominal Haze% values of 1, 5, 10, 20 and 30 with air (transparent solids) or the transmission cell filled with DI water being 0 (transparent liquids). Here are some thoughts on further options. Ken PhillipsMr. Philips has spent the last 30 years in product development and management, […]

Posted in Chemical, Pharmaceuticals, Plastic, UltraScan PRO, UltraScan VIS, Uncategorized Tagged ASTM D1003, ASTM D1003 agreement, haze, Procedure B, transmission haze Leave a comment

Measuring the Color of Clear Liquids

Posted on June 13, 2014 by Ken Phillips

One application that often comes up is measuring the color of clean liquids such as the fragrance sample seen above. This liquid fragrances is clear and looks almost like water. Fragrances such as this are often added to cleaning supplies, air fresheners, or other consumer products. One of the problems that this type of sample […]

Posted in Chemical, Pharmaceuticals, UltraScan PRO, UltraScan VIS, Uncategorized Tagged clear, liquid Leave a comment

Human Observers

Posted on March 4, 2014 by Ken Phillips

This is the final blog note article in our series describing the Visual Observing Situation Model in which we will discuss human observers. Previously we discussed how the illuminants and objects are quantified to help measure color. In the human eye there are rods that are responsible for low light vision and cones that are […]

Posted in Color and Appearance Theory, Uncategorized Tagged 10 degree, 2 degree, observer Leave a comment

Objects

Posted on February 25, 2014 by Ken Phillips

In this series of blog notes we have discussed what is needed to quantify color and how light sources are quantified. The second element of the visual observing model that must be quantified is the object that modifies the white light source. Ken PhillipsMr. Philips has spent the last 30 years in product development and […]

Posted in Color and Appearance Theory, Uncategorized Tagged reflectance, spectral curve, transmittance Leave a comment

Light Sources and Illuminants

Posted on February 18, 2014 by Ken Phillips

The previous blog note discussed the three elements required to see color; a white light source, an object, and a human observer. In order for HunterLab instruments to measure color we need to be able to quantify, or assign numbers, to these three elements. Ken PhillipsMr. Philips has spent the last 30 years in product […]

Posted in Color and Appearance Theory, Uncategorized Tagged D65, illuminant, light source Leave a comment
Page 1 of 212»

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