Effectively Utilizing Spectrophotometers for 3D Colour Printing and Design

The world of 3D colour printing is exploding with new possibilities, and as new options in design and technology progress, the need for more advanced colour measurement systems will need to accompany this growth. As instrumentation becomes more affordable and material supplies continue to expand, spectrophotometers provide the most versatile and precise method for colour measurement and matching technology, allowing 3D printing capabilities to reach new heights in reproduction no matter what raw materials or colour additives are used.

3D printing technology has opened the door to many new possibilities. Nearly any shape, size, or colour can be reproduced with the right instrumentation. Image Source: Flickr user fdecomite

Colour Additives and Sample Standards

With a more widespread adoption of 3D colour printing, the colour palette has expanded. This technology is comparative with ink jet printing technology and colour palettes use similar combinations of yellow, cyan, and magenta to achieve a variety of colour options. Colour additives are typically included with the bonding materials within the printer and require precise measurements to achieve desired results.

Similar to inkjet printing, 3D colour technology relies on specific colour mixing of basic colours for sample matching. With variations in printing materials and binding additives, spectrophotometers are needed to create test blocks and colour standards. Image Source: Flickr user frankieleon

In order to set up a colour palette for 3D printing materials, samples must be developed using colour measurement instrumentation to quantify each value and create a set of standards necessary for repeatability. Variations are common based on the specific properties of raw materials and the interaction of bonding materials to create a set of colour standards. Spectrophotometers are the most reliable and accurate way to quantify these changes.

Based on the finishing properties of 3D prints, colour changes are often influenced by the infiltrant agents used, which tend to cause a decrease in lightness and chroma value.1 These variations require the use of spherical colour measurement technology to accurately quantify these changes and account for various surface textures. Colour measurement of test blocks is most accurately evaluated using a sphere spectrophotometer with a d/8⁰ measuring geometry which accounts for these surface texture changes.

New Applications Expand the Future of 3D Colour Printing

The rise of 3D colour printing applications is helping to span the gap between the art of design and scientific development. The marriage between 3D printing and biotechnology is sweeping the headlines as new developments in artificial cell replacement bring promise to the medical field.2 Colour measurement is already widely used for medical technology and serves a variety of needs to differentiate the many properties of the biological realm. With the ability to reproduce human organs and body parts, colour measurement instrumentation becomes even more important in the development of 3D printing capabilities.

3D printing has created the latest breakthrough in biotechnology. Combine with advanced colour measurement capabilities, the possibilities are just beginning in the bio-engineering world. Image Source: Flickr user Umberto Salvagnin

These breakthroughs in 3D colour printing are just scratching the surface of possibilities that this technology can achieve. New applications are rising in the industrial realm with the increased use of 3D printing in the reproduction of laboratory parts and materials. 3D colour printers and materials are quickly becoming a commonplace in today’s industrial society. The ability to precisely duplicate colour, shape, and size are revolutionizing the way manufacturers develop parts within their own walls.

Combining Technologies Leads to Perfection

Spectrophotometers are necessary throughout the colour development process of 3D printing and can ensure uniformity and repeatability by monitoring each stage of colour production. From the raw materials and ink colorants that are added to the binders to the final product sample block palette, spectrophotometry plays in important role in the advancement of 3D technology.

HunterLab is a leader in spectrophotometry and our product developers are committed to meeting the latest advancements in manufacturing and technology. Our colour measurement instrumentation is designed to meet the specific needs of our clients and our knowledgeable and friendly staff continues to uphold our reputation for the highest level of customer support and satisfactions. For more information on the many applications of colour measurement and 3D printing technology, contact us today.