In plastics processing injection molding is the most common method of part manufacturing. The variety of molded parts produced by injection molding extends from smallest components like cell phone buttons up to entire body panels of cars. Plastic moldings are manufactured in production batches of up to several million. In addition to dimensional stability, color and gloss are the decisive quality criteria.
Patchwork might be good for quilts but certainly not for coated industrial goods. As many finished products consist of multiple components which are manufactured by different suppliers and at different locations, uniformity of color and appearance is crucial. Not only the paint batches need to be delivered with consistent quality, but also the production process of the finished product needs to be controlled.
Gloss in Theory and in Practice
April 14, 2016, 10am Eastern Time
(Available in different time zones around the world here)
Whether matte or glossy – products with gloss variations are perceived as lower quality and can result in customer complaints. Gloss changes could be the result of a variety of process parameters as well as material properties. Objective and reliable measurement data with defined limits are the prerequisite for a stable production process. More…
You know it when you hear it. Musical harmony is the result of simultaneous notes or chords blending together to create a sound that is pleasing to the ear. The combination of different notes played or sung simultaneously creates harmonization. Musical groups such as The Doobie Brothers, Queen, and the Zac Brown Band perform harmonization with style and clarity.
Harmonic sound is enjoyable to hear.
Visual harmony is a different slant on the same idea. More…
Is there a way to convert the gloss measurement at one angle to the gloss measurement at a different angle? For example, you may have a single angle gloss instrument and be required to report the gloss at a different angle to one of your customers. More…
The international leader in QC instruments for appearance and color and “the most trusted name in weathering” partner again for a 1 day seminar! Learn the fundamentals of weathering and light stability testing, the principles of color and gloss and how each affects the other.
Understanding these topics can:
Avoid costly product failures.
Meet new specifications.
Improve existing products.
Bring new products to market.
And increase your profitability!
Limited Availability, Register Today!
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Gloss is an optical phenomenon caused when evaluating the appearance of a surface. The evaluation of gloss describes the capability of a surface to reflect directed light. A gloss meter measures the specular reflection. The intensity of the reflected light is dependent on the material and the angle of the illumination. In order to obtain a clear differentiation over the complete measurement range from high gloss to matte, 3 geometries (ranges) were defined.
Automotive interiors are comprised of a variety of materials and produced by several companies. To achieve a uniform appearance, automotive companies have tight quality control (QC) tolerances. Color tolerances are typically ±0.5 for ΔL*, Δa*, Δb* and gloss tolerances are typically ±0.3 to 0.5 gloss units (GU).