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Roll Specification
Roll Specification
Customer's slit width, core diameter, outside diameter and traverse are confirmed against the master roll specification. Slitter knife positions are set and verified before the run starts.
Capabilities · Slitting & Rewinding
Precision Slitting & Rewinding for Flexible Packaging Film.
In-house precision slitting and rewinding — ±0.5 mm edge tolerance, 100 mm minimum slit width, rollstock, HFFS and VFFS film to exact customer-specified roll dimensions, FOB Xiamen.
1,750mm
Master Roll Width
100mm
Min Slit Width
±0.5mm
Edge Tolerance
PROCESS · SLIT-01
±0.5 mm EDGE TOLERANCE
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Slitter-Rewinder
Quanzhou Plant
Slitter-Rewinder
Quanzhou Plant
Precision Slitting · 100 mm Minimum · Duplex Rewind
01 — Overview
Slitting and rewinding is the final converting step that cuts wide master rolls of printed and laminated flexible film to the exact width, core size, outside diameter and traverse specified by the customer's packaging line. Tansox runs slitting in-house at Quanzhou — directly downstream from the lamination and printing process — producing rollstock film, HFFS film and VFFS film with a ±0.5 mm edge tolerance to ensure consistent tracking on high-speed filling equipment.
02 — How It Works
Four stages, one precision slitting run.
From master roll to finished, labelled slit rolls — every order runs through the same four-stage slitting workflow at Quanzhou.
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Master Roll Feed
Master Roll Feed
The printed and laminated master roll is loaded, tensioned and tracked on the unwind. Web alignment and tension are controlled throughout the slit to prevent telescoping and edge waviness.
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Slitting
Slitting
Rotary knives cut the master roll web into individual slit lanes. Knife sharpness and set are maintained per roll to ensure a clean, burr-free edge within the ±0.5 mm tolerance specification.
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Rewinding & Labelling
Rewinding & Labelling
Slit lanes are rewound on customer-specified cores to the target OD and traverse. Each roll is weighed, measured and labelled with width, OD, lot number and production date before dispatch.
03 — Technical Specifications
The slitting manufacturing window.
The table below covers our standard slitting production parameters. Share your roll specification and we'll confirm feasibility.
Roll Diagram
[ Technical Drawing ]
Slit Roll — Width, OD & Core Dimensions
Slit Roll — Width, OD & Core Dimensions
REF · DWG-SLIT-2026
- Master Roll WidthUp to 1,750 mm master roll on unwind. Slit to any width above the minimum in a single pass.
- Minimum Slit Width100 mm minimum slit width per lane. Narrower lanes available on request — confirm feasibility with sales.
- Edge Tolerance±0.5 mm edge tolerance on slit width — ensures consistent web tracking on HFFS and VFFS packaging lines.
- Core Sizes76 mm (3")152 mm (6")Other — confirm
- Film TypesRollstock FilmPackaging FilmBreathable FilmHFFS FilmVFFS Film
- Minimum OrderConfirm with sales — typically aligned with minimum lamination run quantities.
04 — What We Produce
Four slit film products from our slitting lines.
05 — Suitable Markets
Slit film for high-speed filling lines.
Tansox slit film ships to baby care, wet wipes, medical and cleanroom brands running HFFS, VFFS or rollstock-fed packaging lines where roll specification tolerance directly affects filling line uptime.
06 — Quality & Certifications
Measured and labelled, roll by roll.
Five quality checkpoints applied to every slitting order:
- Edge Tolerance±0.5 mm edge tolerance measured on each slit roll. Rolls outside tolerance are quarantined before packing.
- Roll DimensionsEach roll's slit width, OD and weight are measured and recorded before labelling. Dimensional data available on COA on request.
- Visual InspectionEach slit roll inspected for telescoping, edge waviness, core runout and surface defects. Any defect triggers rejection before shipment.
- CertificationEACC Quality Management Certified — Cert No. 11423Q46251R0M, valid until 2028.
- TraceabilityEach slit roll labelled with lot number, slit width, OD, core size and production date. Full traceability to master roll and production run.
07 — Why Tansox
Half a century of film processing, one factory floor.
50 Years Manufacturing Experience
Established ~1975 in Quanzhou, Fujian. Long experience slitting rollstock and packaging film for HFFS and VFFS filling lines in hygiene and medical applications.
EACC Quality Management Certified
Cert No. 11423Q46251R0M, valid until 2028. Roll dimension records, COA and full lot traceability on every slitting order.
In-House End-to-End Production
Printing, lamination, slitting and converting all under one roof in Quanzhou. Slit rolls ship directly from the same facility that printed and laminated the film.
08 — Frequently Asked
Questions buyers ask before quote.
The standard minimum slit width on Tansox slitting lines is 100 mm. Narrower slit widths may be available on request depending on film structure and knife configuration — contact our sales team to confirm feasibility for widths below 100 mm.
Tansox standard slitting tolerance is ±0.5 mm on slit width. This is critical for HFFS and VFFS packaging lines where consistent roll width directly affects film tracking and machine uptime. Rolls outside tolerance are quarantined before dispatch.
Standard core sizes are 76 mm (3 inch) and 152 mm (6 inch). Target roll OD and traverse are specified per order. Non-standard core sizes can be accommodated — confirm requirements with our sales team at the time of quote. All rolls are labelled with width, OD, core size, lot number and production date.
