Pressure-Sensitive Label Construction Checklist

Understand the conventional liner-backed construction

Conventional liner-backed pressure-sensitive label construction combines face stock, adhesive, release coating and liner. The face stock carries the print and contributes to the label's visual and physical character. The adhesive contributes to bonding, removal behavior and performance over time. The release coating controls separation of the adhesive-backed label from the liner during dispensing. The liner supports the label before application and influences dispensing, roll handling and waste. Release performance depends on the full construction and dispensing conditions.

These parts interact. A heavier face stock may need a different adhesive and liner combination. A removable adhesive may need a specific release level. A film face may behave differently from paper on a curved or squeezable container. Treat the construction as a system and ask the converter to explain the trade-offs for your container, application method and print process.

• Face stock: paper, film or specialty material; confirm print method and durability needs.
• Adhesive: permanent, removable, resealable, cold chain or another function; confirm with the converter.
• Release coating and liner: confirm unwind, dispensing speed and waste handling.
• Construction: ask how the layers interact on your actual container and application line.

Start with the surface, not the artwork

Surface energy describes how readily a liquid, or an adhesive, wets and anchors to a surface. The Avery Dennison technical guide notes that high surface energy materials such as PET and glass bond more readily, while low surface energy materials such as HDPE are more challenging for adhesives. The practical lesson is to name the exact substrate, not just the color or product family, when requesting a label sample.

Contamination matters too. Moisture, dirt and dust on the substrate can interfere with bonding, and the guide suggests considering higher initial tack where those conditions exist. That is a prompt to test in the real filling environment, not a promise that one adhesive will overcome every dirty surface.

• Identify the container material and any coating.
• Note whether the surface is wet, dusty, oily or cold at application.
• Ask for a sample and apply it the way production will.

Temperature has two separate numbers

Application temperature concerns conditions when the label is applied, including the container surface, label and surrounding environment. Ask the converter how the adhesive's specified application range applies to those conditions. Service temperature is the range the applied label may meet in storage, transport or use. Avery Dennison's guides describe most of their adhesives as intended for ambient application, with a minimum application temperature around +5 C. They give standard service-range examples of -20 C to +80 C in one guide and -40 C to +80 C in another. These are supplier portfolio examples, not specifications for every construction; confirm the selected adhesive's data sheet and test conditions.

Low temperature can change adhesive character. The guide warns that an adhesive that is easily removable at room temperature may become permanent at lower temperatures. If your process includes a cold room, a freezer or a cold chain, ask for a cold-condition sample and test application, dwell and removal at the temperatures your process uses.

Match adhesive function to the job

Adhesive selection is not only about permanent versus removable. The Avery Dennison guide describes clean removability, water-whitening resistance, tamper evidence and resealability as distinct functions. A resealable label for a wet wipes pack has a different job from a tamper-evident seal or a freezer label. Write the function in plain language before you look at a sample roll.

Use a short brief: what the label must do, what it must not do, how long it should perform, what surface it touches and what happens after opening. If the label must survive moisture, abrasion, condensation or repeated opening, say so. The converter can then propose a construction and a test method rather than a generic paper label.

• State the primary function in one sentence.
• List the conditions the label will meet after application.
• Separate must-have performance from nice-to-have appearance.

Face stock, liner and print method travel together

Face stock choice affects print quality, stiffness, conformability and resistance. Paper can be appropriate for dry, flat surfaces, while film may suit squeezable containers, moisture or durability needs. The liner affects dispensing and waste. A thin liner may run differently from a thicker liner on your applicator, and linerless constructions need different equipment and handling.

Print method belongs in the same conversation. Ask whether the artwork will be digitally printed, flexographically printed or handled another way, and confirm the converter's file and proof requirements. PDF/X-4 can carry color-managed RGB, so RGB is not automatically barred; the printer's agreed workflow determines conversion. Printer marks, dieline visibility, layers and proof type should follow the converter's instructions rather than a universal checklist.

Barcode and placement checks for ecommerce labels

If the label carries a channel barcode, separate the construction question from the placement rule. Amazon's FBA guide lists barcode labels 1 to 2 inches tall and 2 to 3 inches wide, black ink on non-reflective paper, placed on a smooth flat surface away from corners, edges and curves. It also states that damaged or photocopied labels are not accepted. Confirm current requirements in your own seller agreement because channel rules can change.

Placement affects scanning and adhesion. A label that bridges a curve, seam or recessed area may lift or distort. A label applied over a dirty or wet surface may trap contamination. Build a placement check into the line: correct label, correct orientation, no wrinkles, no covered barcode and no old label left underneath on a reused box. The FedEx packaging guidance recommends removing old address labels from reused boxes before shipping.

Hypothetical worked example: label repeat and area

Suppose a hypothetical 2 inch by 3 inch label runs one label across the web (a single lane) on a 6 inch wide roll. The 2 inch side runs across the web and the 3 inch side runs along it, with a 0.125 inch gap between labels. The repeat is 3 plus 0.125, or 3.125 inches. A hypothetical 15,000 inch web length divided by 3.125 inches gives 4,800 repeats. If the converter quotes 4,500 usable labels, the difference is 300 repeats, which is 6.25 percent of 4,800. The label area of 4,500 labels is 4,500 multiplied by 6 square inches, or 27,000 square inches. Dividing by 144 gives 187.5 square feet. A multi-lane layout across the same 6 inch width would change these counts, so confirm the lane count with the converter.

This is arithmetic only. It is not a yield promise or a manufacturable dieline. Setup waste, splices, inspection, registration and roll handling are not included. Use the calculation to sanity check a quote and then ask the converter to confirm the real repeat, roll length and usable count.

A practical pre-press and receiving checklist

Use this checklist as Teal's editorial planning framework. The sources listed below cover only specific underlying principles such as surface energy, temperature and barcode placement; they do not validate your full construction.

• Name the exact container material, coating and surface condition at application.
• Record the application temperature and the service temperature range separately.
• State whether the label must be permanent, removable, resealable, tamper evident or resistant to water whitening.
• Confirm face stock, adhesive family and liner with the converter in writing.
• Ask for a sample roll and apply samples with the production applicator or the closest available method.
• Check adhesion after the agreed dwell time on clean and contaminated surfaces.
• Confirm print method, file format, proof type and color conversion workflow with the converter.
• Obtain the channel's current barcode specifications and check size, print, placement and readability; arrange barcode verification to the specified standard and grade where required. This guide does not supply exact specifications for every channel.
• Check that labels do not bridge corners, seams or deep curves in a way that causes lift.
• Remove old labels from reused boxes and keep the application area clean.

Decision table for common label questions

Use the table to frame questions for the converter and to plan a small validation. It does not replace application testing.

Scope limits and what to confirm in writing

This guide is an editorial planning framework, not a dieline, a compliance ruling, a shelf life study or a barcode grade. It does not determine food contact suitability, hazardous goods rules, cold chain performance or channel acceptance. Confirm those points with your converter, test laboratory and channel agreement. Adhesive data sheets describe supplier portfolios and test conditions; your container, filling line and use case still need validation.

For Teal projects, standard MOQ is 50 and specialty rigid MOQ is 100. Teal does not charge setup, plate or tooling fees. Teal's sample kit costs $50, credited to your first order. Confirm sample options for your project with your Teal contact. Product pricing is quoted per project.

Questions about Pressure-sensitive label construction and validation