Frequently Asked Questions

Frequently Asked Questions

What is the difference between Teslin and PVC cards?

We offer two card constructions — here's how they compare:

Teslin (Digitally Printed, Synthetic Laminated) Available in 20, 25, and 30 mil thicknesses (30 mil is comparable to a credit card). Flexible, durable, and fully waterproof.

  • More economical for smaller quantities (5,000 cards or less)
  • Full colour printing at the same cost as single colour — photos, logos, no difference
  • Fast turnaround — standard 5–10 business days from proof approval
  • Sequential barcoding and/or numbering included at no extra cost
  • Available with clear gloss or writable matte laminate on either side
  • Barcode is protected under laminate — won't wear or fade
  • Low minimum order quantities
  • Magnetic stripe option not available for this construction

PVC (Standard Press Printed, 30 mil) The traditional plastic card construction — rigid, substantial, and familiar.

  • True Pantone and metallic colours available (not just digital CMYK equivalents)
  • More rigid feel — may feel more substantial than a comparable Teslin card
  • Better value at higher volumes; setup and plate costs make small quantities relatively expensive
  • Standard glossy finish; signature panels available on either side
  • Longer turnaround — typically 3–4 weeks from proof approval depending on volume

For both options: basic design setup and unlimited proofing are included at no cost.

What is a barcode?

A barcode is a way of representing data through a series of machine-readable bars and spaces. When scanned, the pattern gives a reflective (space) or non-reflective (bar) response that the reader converts into a readable character code.

How do barcodes work?

Each barcode character works similarly to a printed font — dark shapes against a light background, arranged in a specific order to form a readable message. The difference is that bars and spaces are optimized for fast, accurate recognition by scanning devices.

Barcode Terms & Elements

Symbology A barcode symbology is like a language. The three most common for library systems are Code 3 of 9, Codabar, and Interleaved 2 of 5. Many systems recognize multiple symbologies, though some older systems require a specific type.

Start & Stop Characters Special characters at the beginning and end of a barcode that tell the reader where the encoded message starts and stops. These are symbology-specific and can help identify which type of barcode is in use.

Quiet Zone The clear space before the start character and after the stop character. Scanners require quiet zones to decode successfully — if the barcode isn't properly aligned on the stock, the quiet zone can be lost and the barcode becomes unreadable.

Check Digit A character (usually a number) built into the barcode to verify the accuracy and validity of the read. It's calculated from the other numbers using a mathematical algorithm. Most libraries use a 14-digit barcode with the last digit as the check digit — typically MOD 10 or MOD 43.

When providing a start number for printing, supply a 13-digit number and we'll generate the check digit automatically, as long as we know the check digit type. Use an "X" as a placeholder for the check digit position — for example: 3 1234 56789012 X

Librarian Quick-Check Ordering Guide

Before placing your order, have the following ready:

  • Barcode type or symbology required
  • Start number — for new customers, confirm there will be no duplication with your current inventory; for existing customers, we manage your numbering ranges automatically
  • Total number of characters in the barcode
  • Start and stop characters (Codabar only)
  • Check digit type — if non-standard, provide the checksum algorithm
  • Any special requirements or formatting
  • Label item type — Singles, Pairs, or Two-Part (ask us if you're unsure)
  • New customers: please supply a sample of a current barcode label — a scanned and emailed sample showing at least 4 barcodes is ideal; a faxed or photocopied sample works too as long as it's clear and as large as possible

We're happy to provide a PDF proof before production for testing against your library automation system and to confirm there are no numbering conflicts. Just ask.