# Splice Detection > Splice detection identifies tape splices, overlaps, and butt joints as they move through converting, printing, and coating machinery. Roll-2-Roll Technologies provides sensors that detect splices automatically—including transparent splices on clear webs—preventing splice-related damage to downstr... **Last updated:** 2026-03-03 **Source:** https://r2r.tech/solutions/splice-detection --- Splice detection identifies tape splices, overlaps, and butt joints as they move through converting, printing, and coating machinery. Roll-2-Roll Technologies provides sensors that detect splices automatically—including transparent splices on clear webs—preventing splice-related damage to downstream equipment and ensuring splice-free product delivery to customers. Unlike standard photo-eyes that struggle with clear materials, our sensors detect the subtle density and thickness changes that indicate a splice. ## The Challenge: Undetected Splices Cause Damage and Quality Failures Splices are necessary to join rolls during production, but they create significant problems: - Equipment Damage: Splices entering printing presses, laminators, or coating dies cause damage to expensive plates, dies, and doctor blades. - Customer Rejections: Splices in finished product packaging create visual defects and structural weak points that fail quality inspections. - Clear-on-Clear Detection Failure: Traditional photo-eyes cannot detect transparent splice tape on clear films—the most common scenario in flexible packaging. - Manual Flagging Waste: Operators manually flag splices with colored tape, but flags are often missed or fall off, allowing splices to pass undetected. --- ## The Solution: Automated Splice Detection with Material Intelligence Roll-2-Roll splice detection sensors analyze the full width of the web, detecting density changes, thickness variations, and edge irregularities that indicate a splice. ### How It Works 1. Full-Width Scanning: The sensor captures a 1D image across the entire web width 2. Density Analysis: Advanced algorithms detect the subtle density change where splice tape overlaps the web 3. Edge Irregularity Detection: Butt splices create edge disruptions that the sensor identifies instantly 4. Automatic Flagging: When a splice is detected, the system triggers reject mechanisms or marks the location for removal **Key Advantage:** Detects clear-on-clear splices that defeat standard photo-eyes. Works on opaque, transparent, and porous materials without calibration. --- ## Key Benefits - Prevent Equipment Damage: Stop the line before splices enter expensive downstream equipment - Eliminate Customer Rejections: Ensure splice-free product delivery by rejecting spliced sections automatically - Detect All Splice Types: Identifies tape splices, butt splices, and hidden double-sided tape - Works on Clear Films: Detects transparent splice tape on transparent webs—the "Holy Grail" of splice detection - No Manual Flagging: Automated detection eliminates reliance on operators manually flagging splices --- ## Applications by Industry - Flexible Packaging Converting — Prevent splices from entering pouch making equipment. Protect printing plates and coating dies. - Label Printing — Detect splices before they damage expensive flexo plates or digital print heads. - Battery Manufacturing — Remove spliced electrode sections that create cell performance inconsistencies. - Medical & Pharma — Ensure splice-free packaging for sterile medical devices and pharmaceutical products. - Film Extrusion — Monitor rewind stations to detect splices in incoming rolls before they enter the extruder. --- ## Related Solutions - Edge Detection — Monitor web edge position - Flag Detection — Detect flags and markers - Surface Defect Detection — Detect holes, tears, and contamination --- ## About Roll-2-Roll Technologies Roll-2-Roll Technologies LLC, headquartered in Stillwater, Oklahoma, manufactures patented fiber-optic web position sensors and web guiding systems for roll-to-roll manufacturing. Products include ODC edge sensors (48mm to 960mm), 1DC all-in-one sensors, SCU-series controllers, and complete web guide systems. - Website: https://r2r.tech - Phone: +1 (888) 290-3215 - Email: sales@r2r.tech