A backing that holds its shape through the yard
Kraft liner stock is the paper backing that carries self-adhesive labels through printing, slitting, rewinding and application. In practical terms, it is chosen when a tougher liner is needed for heavier rolls, tighter winding, or repeated handling in Westmead, Pinetown and on long dispatch runs to Durban, Johannesburg, Cape Town, Pretoria and Pietermaritzburg. The surface can be made for clean release from the label face stock while still keeping the roll stable in storage and transit.
For busy label users, the main benefit is control. A stronger liner can help the roll keep its shape on pallets, in courier bags, and in warehouse racking where heat, dust and movement all take their toll. It is also useful where labels must feed neatly through converting equipment and where the wind-up must stay even from start to finish, otherwise you get edge lift and uneven tension.
- Used as the carrier for pressure-sensitive labels
- Available in rolls for converting and dispatch
- Suitable for label stock that needs firmer handling
Sizes, caliper and roll build that suit the machine
Kraft liner stock is supplied in a range of widths and roll lengths, depending on the label format and the converting plan. Common stock builds include lighter and heavier paper calipers for different handling needs, with roll width matched to the final slit sizes and printer web path. Where needed, the liner can be planned for a standard core size such as 25 mm, 40 mm or 76 mm, depending on the printer or rewinder being used.
For label converters and end users, the details that matter most are the web width, outer roll diameter, core size, winding direction and the finish of the liner surface. A label roll that is correct on paper but wrong on winding or core size can cause feed issues, especially on benchtop thermal transfer units, industrial print-and-apply units or label applicators used in logistics and manufacturing yards.
- Widths can be planned to suit slit label formats
- Core sizes available for different printer and rewinder setups
- Roll length and outer diameter set to suit storage and use
Where kraft liner stock earns its keep
This liner suits packaging lines, retail label runs, stock control labels, carton sealing work and warehouse labels where handling strength is part of the job. It is often selected for labels that will be transported in bulk, stored for longer periods or converted in larger batches, because the liner helps the roll stay tidy and less prone to damage from rough handling. Coastal humidity in Durban or hotter inland conditions can also call for cleaner winding and better roll stability.
It is a practical choice where labels are stored in busy stores, dispatch rooms or production areas. If the roll will move through several hands before use, a more durable backing can help reduce crushed edges, loose wraps and telescoping. For operations in Pietermaritzburg, Pretoria or Johannesburg, that kind of consistency makes day-to-day label use easier to plan.
- Packaging and sealing label stock
- Retail shelf and price label runs
- Logistics, cartons and warehouse identification
How it is fitted into label production and printing
Kraft liner stock is usually specified as part of a complete label construction, together with the face stock and adhesive. For converting, the liner must run true through slitting blades and rewinding shafts, with winding direction set to match the final application. If the roll is for printing, the printer type matters as well, since direct thermal and thermal transfer equipment do not use the same label build for every job.
Direct thermal printers use heat-sensitive facestock and a compatible liner build, while thermal transfer printing relies on a ribbon and a label face stock that can take the image cleanly. That means the liner choice must support stable feeding, correct gap sensing and clean release at speed. On wider rolls or heavier jobs, take care with core fit, roll tension and unwind direction, otherwise the stock can wander or tighten unevenly.
- Match the liner to the final slitting plan
- Confirm core size before ordering for your printer
- Check winding direction for application or print path
Care on the floor, in storage and on the truck
Kraft liner stock should be kept dry, flat and away from direct sunlight, sharp edges and floor moisture. In warehouses and dispatch areas, store rolls off the ground and avoid stacking too high where the lower rolls can compress. When working near loading bays or humid coastal air, keep packaging closed until the stock is needed so the roll surface stays consistent and the edges do not soften.
If rolls are being moved between slitting, packing and dispatch, protect the ends and avoid rough dropping. A damaged edge can cause tracking issues later on, especially with narrow label widths. For repeated use, a clear batch note helps keep roll length, core size and winding direction aligned from one order to the next. This saves time when a job is repeated a week or two later and the setup must match exactly.
- Store in a dry area away from floor damp
- Keep rolls wrapped until needed
- Protect edges during loading and transport
The order details we need before slitting or dispatch
To supply the correct kraft liner stock, we need the label width, roll length, core size, winding direction, outer diameter limit and whether the roll is for printing, rewinding or final application. It also helps to know the face stock being used and the adhesive type, because the full label build has to work as one unit. If the labels will be used on cartons, retail packs or logistics labels, mention the surface and the conditions the roll will face.
Where printers are involved, tell us the make of machine in general terms, the feed width and whether the job is direct thermal or thermal transfer. That lets us check fit and avoid a roll that is too wide, too tight or wound the wrong way. For later supply, keeping the same roll build on file makes future supply smoother, especially when jobs are split between Pinetown, Durban and inland branches.
- Label width and total roll length
- Core size and winding direction
- Printer type, feed width and use case
Key facts
| Product | Kraft liner stock |
|---|---|
| Material | Paper kraft liner for self-adhesive label construction |
| Common calipers | Light to heavier paper builds, selected to suit handling needs |
| Core sizes | 25 mm, 40 mm, 76 mm or as specified |
| Format | Supplied in slit rolls for converting, printing or dispatch |
| Supply areas | Westmead, Pinetown, Durban, Johannesburg, Cape Town, Pretoria, Pietermaritzburg and surrounding South African routes |
