That's because GLOWY is a fluorescent thread! This means that it glows under UV light. This happens because special color pigments in the thread convert invisible ultraviolet light into visible light. In normal daylight, the thread appears muted, soft, and delicate. In the dark, GLOWY begins to glow if it has previously been exposed to daylight or UV light, making it clearly visible. Reiner Knochel, Textile Experience, comments: "GLOWY is particularly suitable for use on children's pajamas. Parents turn off the light and their child's favorite motif begins to glow. Children love this, it makes them feel safe and helps them fall asleep more easily. This effect also works on pillows, blankets, and stuffed animals."

This special thread is also ideal for adding creative yet subtle accents during the day, whether on blouses, shirts, light jackets, accessories, or promotional textiles. In the dark, the luminosity of GLOWY highlights hidden embroidered logos, lettering, or even entire motifs for up to 20 minutes, which is approximately how long GLOWY's luminosity lasts. 

GLOWY consists of 56% polyester and 44% polypropylene, is Oeko-Tex certified, and remains luminous for up to 50 wash cycles. The thread is available in seven pastel shades—from delicate yellow to bright pink—corresponds to embroidery thread size 40 (Nm 69/2; dtex 145×2) and is very easy to work with despite its special properties. GUNOLD recommends using a standard needle, e.g., ORGAN No. 75/11 SES.

Whether for children's textiles, safety details, or design ideas with a surprising effect: GLOWY, embroidered or used as decorative stitching, creates a fascinating transition from day to night!

For further information, visit www.gunold.de