Custom Finishing & Slitting
Precision doesn’t stop at the press. After engineering, printing, and laminating your flexible packaging film, Glenroy’s custom finishing and slitting department prepares every roll to exact specifications before it ships. Every detail is handled in-house by packaging experts with many years of experience in the flexible packaging industry, making it the final step that transforms your custom packaging into a production-ready solution.
Custom Finishing & Slitting
What Is Custom Finishing & Slitting?
Custom finishing is the final stage of flexible packaging film production. Once your film has been engineered, printed, and laminated, our team slits wide master rolls down to the precise widths your filling equipment requires, inspects the material, and prepares it for shipment in your specified format. Brands receiving rollstock film ship directly from this stage. Projects destined for custom pouches, including stand-up pouches and spouted pouches with custom designs and resealable zipper closures, move to our nearby pouch converting facility for final production and quality testing.
Glenroy’s Finishing & Slitting Capabilities
Our finishing and slitting equipment is built for the precision and throughput that high-volume flexible packaging production demands. Capabilities include:
- High-speed, precision slitting in widths from 1.5″ up to 72″
- Laser-scoring in machine-direction or across web
- Roll rewind in diameters from 3″ to 32″
- A wide range of slitting techniques to accommodate different materials and structures
- Inline barcode quality scans and print repeat monitoring
- Custom labeling and packaging to your specified format
Whether your product requires a narrow rollstock film for stick packs or a wider format for flat bottom pouches or pillow pouches, our finishing team can accommodate your requirements with accuracy and speed.
Built Into a Complete Custom Packaging Solution
Custom finishing and slitting is one step in a fully integrated manufacturing process. At Glenroy, every stage of production happens under one roof, giving you tighter quality control, shorter lead times, and reduced shipping costs across your custom flexible packaging solutions.
That process includes:
- Custom Engineered Laminations: strong barrier protection, product freshness, and extended shelf life
- Flexographic Printing: award-winning quality for custom designs
- Adhesive & Extrusion Laminating: precision coating for different materials and performance requirements
- Pouch Converting: stand-up pouches, spouted pouches, and more converted in-house
- Sustainable Packaging Options: PCR content structures and recyclable pouch formats for brands with active sustainability goals
- Pouch Prototyping & Testing: expert guidance and rigorous testing before your packaging enters the supply chain
As a U.S.-based flexible packaging manufacturer, Glenroy manages each step with the highest quality standards, helping brands move away from rigid packaging and into innovative packaging solutions built for performance.
Custom Finishing for Every Market
Glenroy’s finishing and slitting capabilities support custom flexible packaging solutions across a wide range of markets. Our flexible packaging film serves brands in:
- Food & Beverage: extended shelf life and strong barrier protection for food packaging
- Personal Care: film structures engineered to protect formulations and support resealable closures
- Pet Food: high-quality flexible film built to protect freshness through demanding distribution
- Medical & Pharmaceutical: medical packaging and medical applications meeting strict safety standards
- Nutritional & Nutraceuticals: packaging solutions engineered to preserve product integrity
- Industrial Applications: durable flexible packaging film for reliable supply chain protection
For brands with sustainability goals, our finishing process also supports PCR content structures and recyclable pouch options that reduce environmental impact without compromising performance.
Laser Scoring Solutions for Flexible Packaging
Glenroy’s in-house laser technology enhances flexible packaging by adding consumer-friendly features, improving product freshness, and enabling innovative package designs without compromising package integrity. Through advanced laser scoring, perforating, venting, and cutting technologies, Glenroy creates high-performance packaging solutions that improve convenience, shelf life, and product visibility.
Key Benefits & Capabilities
- Easy-open packaging with precision laser scoring for consistent tear performance while maintaining package strength and barrier properties.
- Microwave venting solutions that automatically release steam during heating without requiring valves, patches, or package modifications.
- Modified atmosphere packaging (MAP) through laser micro-perforation to help extend shelf life for fresh produce and other perishable products.
- Laser-cut windows and product viewing features that improve shelf appeal and allow consumers to see the product inside.
- Peel-and-reseal functionality that enhances convenience, tamper evidence, and product freshness.
- High-speed, precision processing across a wide range of flexible packaging applications, including food, produce, pet food, bakery, and consumer products
Frequently Asked Questions
What is film slitting in flexible packaging?
Film slitting is the process of cutting wide master rolls of flexible packaging film down to the specific widths required by a brand’s filling equipment or pouch converting process. At Glenroy, precision slitting is performed at high speeds in widths ranging from 1.5″ to 72″, with inline quality monitoring throughout.
Can Glenroy handle custom labeling and roll specifications?
Yes. Our finishing department prepares every roll to your exact specifications, including custom labeling, packaging format, and roll dimensions. This helps your team receive material that is ready to run with minimal handling on your end.
How does custom finishing fit into the broader packaging process?
Custom finishing is the final stage before your flexible packaging film ships. It follows engineering, printing, and laminating, and precedes either direct shipment to your facility as rollstock or transfer to our pouch converting operation for premade pouch production.
Can Glenroy help me choose the right flexible packaging solution for my product?
Yes. Our packaging experts provide expert guidance throughout the entire project, from material selection and custom designs to finishing specifications and pouch format. Whether you are transitioning away from rigid packaging or launching new products in flexible pouches, Glenroy can help you identify the custom packaging solutions that best fit your product, market, and sustainability goals. Contact us today to get started.
Additional Resources
Flexible Packaging Film Finishing and Slitting
