Why choose colored glass? | The color secrets hidden in glass

Custom colored cocktail glasses

We all love stained glass because color gives us more visual feast! But it also raises the question:

Drink hot water with colored glass, will there be toxins?

1 Most of the glass sold on the market is transparent, and the colored glasses we can see on the market are basically divided into spray colored glasses and colored glasses.

Spray color glass as the name suggests is sprayed on the glass color, Home Decoration people know furniture spray paint! In fact, it is a truth, no matter how the business justifies the high temperature spray painting, but it is sprayed up, and it will always drop the paint. The paint on tables and chairs that have been rubbed for a long time can be touched up or just mottled and ugly. But where's the paint in the glass? Imagine it for yourself

Custom colored shot glasses

2 What are the differences between colored glass and spray colored glass?

The so-called colored glass is mainly through the material coloring technology and organic raw materials to make the color and glass integrated. Beautiful glass tiles and embossed glass lamps popular in Europe, the Middle East and South America are made in this way.

Color glass uses water-based organic paint, through preheating, melting and mixing, the organic raw materials and glass liquid integration, which sounds simple coloring process is actually extremely high requirements for professional technology and equipment, which is why many small businesses can not do excellent material glass reasons. (In terms of the design of the feed channel for adjusting the glass temperature and homogenizing the glass, the ordinary feed channel is generally composed of the cooling section and the regulating section. For tinting channels, additional channels are required to feed, melt and stir organic materials before the glass cooling and conditioning section. This is the key to ensuring that we see an even and beautiful glass!)

Creative colorful wine glasses

3 It is much easier to answer the original question again. Is all stained glass unsafe? The answer is not, colored glass does not!

Let's break down the coloring principle of colored glass.

Ordinary glass is made by melting quartz sand, soda ash and limestone together. It is a mixture of non-fixed silicate, color glass is in the melting time in the silicate to add cobalt (Co), manganese (Mn), nickel (Ni), iron (Fe), copper (Cu) and other transition elements of the compound, existing in the ionic state in the glass, due to their valence electrons in different energy levels (ground state and excited state) between the transition. Causes selective absorption of visible light and coloring, such as cobalt blue, manganese violet, nickel green and other colors of glass.

These added transition metal elements exist in the form of ions, but these ions will not be simply decomposed, these ions in the glass and silicate oxygen to form four coordination or six coordination complexes, very stable. Therefore, the heavy metal ions of the colored glass are not decomposed because of the boiling water at 100 ° C. In simple terms, the color of the color glass and the stock liquid are fused as one, and will not be analyzed due to high temperature!

Spray champagne glass

4 Finally, here comes your most important question:

How to distinguish between spray glass and colored glass?

STEP 1 Look! Look at the bottom of the cup and the color of the cup body, the spray color will be uneven in thickness, and the color material is uniform and transparent.

STEP 2 Scrape the surface of the object with a hard object. The spray color will remove the paint, while the color material will not, so it is easy to distinguish.