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Back to GLOSSARY OF TERMS

Silk screen printing

The process of decorating a glass surface in which a pattern is printed through a silk net or similar screen

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Glass roughness

a defect in the glass product, representing the presence of many small irregularities on the outer surface.

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Spike

Small protrusion in the corner of a flat glass sheet due to improper cutting

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Charge

a mixture of raw materials taken in certain ratios and intended for glass melting.

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Schlier

Inhomogeneous layer in flat glass

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Grinding

The processing of glass, during which its surface is smoothed by grinding with an abrasive

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Grinding method

A method of engraving a glass surface in which the image is a combination of small and shallow patches or solid areas created by grinding with an abrasive tool

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Seam (glass)

a defect on the surface of the glass product in the form of a protrusion is larger than the allowable size of a certain extent.

sharp seam - a seam with a non-rounded surface.

burr - a seam resulting from the penetration of molten glass into the junction of two parts of the mold kit.

corner - a seam resulting from the penetration of glass into the junction of the three parts of the mold set.

annular seam - a seam located around the circumference of the bottom or end of the rim of a glass container.

Note. The seam on the surface of the product can be double in the form of mismatching seams from the finishing and draft forms.