← Back to the glossary
不良・失敗
cord
Japanese: 脈理
Stripe-like distortion caused by variations in composition. This tends to occur during remelting or color mixing.
Learn More
A cord is a streak-like distortion caused by compositional variations within the glass. Areas with different refractive indices appear as stripes or streaks.
This defect tends to occur when the glass is repeatedly remelted or mixed, and is particularly noticeable in clear glass.
This entry is written in Japanese by Rei Chikaoka and translated for readers outside Japan. If something reads oddly, the original is the source of truth.