Guilloches are some of the oldest security features in printing—and even so, are very current. The delicate, interlaced line patterns have their origins in the 17th century and are still an integral component of high-end security solutions today. Schreiner ProSecure has now raised them to a new level: with an extensive design catalog, an internal design guide, and many customizable design options.

Time-Tested Technology—Reimagined

Guilloches deliver compelling performance as an anti-counterfeiting feature particularly due to their design diversity, elegance, and resulting recognition value. The complex, mathematically generated lines pose a true challenge to scanners and printers. Unauthorized reproduction results in visible blurs or moiré effects—a clear indication of tampering attempts. Especially in the case of closure seals, guilloches are frequently positioned along the edge of the cardboard packaging to make unauthorized opening and resealing more difficult.

Flexibility in Every Detail

Guilloches are more than a security feature—they’re also a design element with countless variation options. That’s exactly where Schreiner ProSecure’s new offering comes into play: A comprehensive catalog of examples offers many fully created, sophisticated guilloche designs serving as the basis for customized solutions. The catalog is complemented by a design guide that systematically explains all design parameters—from the shape of the outer contours to the alignment, density and thickness of the lines, and the integration of microtext.

Tailored to Suit Any Application

Thanks to this preliminary work, the design phase of customized guilloches in new projects can be significantly shortened—without sacrificing the level of security or freedom of design. Together with the respective customer of the business units, a desired design is selected, modified, and optimized for the relevant application and printing technology.

Customers profit from Schreiner Group’s decades of experience with security features using sophisticated printing technologies—and can rely on top quality and functionality, no matter what printing technology is used.