Blog sul colore

In un mondo perfetto, si dovrebbe essere in grado di mettere l'inchiostro nella macchina da stampa, eseguire un lavoro e ottenere l'uniformità del colore. Purtroppo, ogni anno le operazioni di stampa flessografica e rotocalco sprecano inchiostro, substrato e tempo di stampa nel tentativo di ottenere il colore giusto. Sebbene i progressi della tecnologia abbiano reso più facile ottenere l'accuratezza del colore, le variabili che influiscono sul colore esistono ancora. In questa serie di tre pa...

Are you wasting too much time and money on incorrect color? Even if you use the best color measurement tools available, your color will still fail without quality control. Quality control (QC) means verifying the color you specify is the same color you manufacture, throughout production. Setting up a QC program can help you accurately communicate color with clients and suppliers, inspect raw materials before you begin working, and verify your color is correct before you ship.   Five Impor...

Using a light booth to visually judge color is a great start to a successful color evaluation program. It allows you predict how color will look under multiple light sources so there won’t be any color surprises when the light changes over the life of the product. Introducing a color measurement device to capture spectral data is the next logical step. For a really great color program, you need to use both a light booth AND a spectrophotometer. This dynamic duo offers benefits you can&rsqu...

Color is our perception of reflected light across the visible spectrum. When light hits an object, it absorbs some rays and reflect others. The color of light that reflects back into our eyes is the color we perceive. The more light an object absorbs, the darker it appears. With black, very little light is reflected. Pure black in the presence of light wasn’t achieved until 2014 when Surrey NanoSystems announced the invention of Vantablack. This high-tech artificial substance absorbs 99....

Have you ever sent out a job that passed your inspection, only to have the customer reject it for out-of-tolerance color? You recheck the data and the instrument says the color passed the agreed tolerance… why is the customer saying it doesn’t? We get a LOT of these conflicting measurement calls in technical support. The solution is simple – document a color control program that clearly defines how to assess color, then make sure everyone (including your customer) follow...

In a perfect world, you should be able to put ink in the press and run a job.  Unfortunately, there are so many variables that affect color that printing operations often waste thousands of pounds of substrate, and thousands of dollars in press time, making adjustments. Advancements in technology have made it easier to measure color, but the variables still exist. To help you over come them, we’ll be featuring a series that points out many of the reasons your color could go wrong at press side....

Using a spectrophotometer to measure color doesn’t necessarily mean you’re going to capture accurate data. The most common reason for incorrect measurements and inconsistent readings among instruments is using the wrong device settings. Today we’ll look at five things you must consider when setting up your device and taking measurements. Illuminant and Observer angle The illuminant describes the color of the light under which you’re judging colors. To accurately determine how the color will...

Molte aziende investono denaro e tempo in abbondanza negli strumenti e nei software di misurazione del colore ma dimenticano quanto sia importante l’illuminazione al momento di approvare i prodotti che dovranno essere spediti. Se utilizzati correttamente, gli spettrofotometri e i software per la gestione del colore possono confermarti se i colori realizzati rientrano nei limiti di tolleranza, e anche gestire lucidità e metamerismo (v. a seguire la spiegazione di metamerismo). Tuttav...