TLMI label unwind direction chart (#1–#8): how to specify roll wind for automatic applicators
Ordering custom roll labels with the wrong unwind direction means your labels will apply upside down, sideways, or with the adhesive facing the wrong roller on your labeling machine. In commercial converting, every roll is governed by the standard TLMI (Tag and Label Manufacturers Institute) Unwind Chart (#1 through #8). Here is how to specify the exact unwind for your line.
Wound Out (#1–#4) vs. Wound In (#5–#8)
The first question is whether the printed face of the label sits on the outside of the roll (Copy Out / Wound Out, positions #1 through #4) or facing the inside of the roll toward the core (Copy In / Wound In, positions #5 through #8).
Over 90% of modern automatic rotary canners, wrap-around bottle labelers, and tamp-blow case applicators use Wound Out (#1–#4) rolls on a 3" core. Hand-applied rolls and tabletop dispensers can use either, though Wound Out is standard.
- Unwind #1 (Top Off First, Wound Out): Top edge of artwork leads as the roll unwinds.
- Unwind #2 (Bottom Off First, Wound Out): Bottom edge of artwork leads as the roll unwinds.
- Unwind #3 (Right Side Off First, Wound Out): Right edge of artwork leads — common on horizontal wrap bottle applicators.
- Unwind #4 (Left Side Off First, Wound Out): Left edge of artwork leads — the standard for most mobile canners (12 oz & 16 oz cans) and rotary wrap machines.
- Unwinds #5–#8 (Wound In): Mirror positions #1–#4 with the printed face wound toward the inner core.
Why Width × Length Orientation Dictates Your Unwind
In pressure-sensitive converting, dimensions are always stated as Width (across the web) × Length (around the cylinder / in the feed direction). When a label feeds off a peel plate onto a spinning cylindrical bottle or aluminum can, the Length dimension wraps around the circumference of the container, while the Width dimension stands vertically from top to bottom of the container.
For example, a standard 12 oz aluminum beer can label is 3.5" tall on the can and wraps 8.0" around the can's circumference. On the press web, it is run with Unwind #4 or #3 so the narrow edge leads onto the can.
3" Core vs. 1" Core and Maximum Outer Diameter (OD)
Automatic labeling machines and industrial thermal transfer printers mount rolls on a 3.0" inner diameter mandrel and typically accept roll outer diameters up to 8.0" or 12.0". Larger OD rolls hold more labels per roll, cutting line stops for roll changeovers in half.
Compact tabletop dispensers and desktop thermal printers require a 1.0" core with a maximum 5.0" outer diameter. Always verify both core diameter and maximum roll OD in your applicator manual before approving your digital proof.
✓Pre-Press Applicator Verification Checklist
- •Confirm whether labels are applied by hand (unwind is flexible) or by machine (strictly verify TLMI #1–#8).
- •Check whether the container stands upright on a conveyor (typically Unwind #3 or #4) or passes horizontally under a tamp head (typically Unwind #1 or #2).
- •Verify core inner diameter: 3" core for automatic applicators; 1" core for desktop printers.
- •Confirm sensor type: Standard 0.125" gap sensor (opaque liner) vs. black eye-mark registration bar (required for clear-on-clear film labels).
- •Download the 1:1 SVG dieline in Step 2 of our quote wizard to align your artwork with the feed direction.
Configure your custom label with verified TLMI unwind
Our 7-step configurator pre-fills industry-standard core and TLMI unwind specs for cans, jars, bottles, and drums—and every order includes a digital proof verifying roll wind before press.