User`s guide

CHAPTER 5
L
ABEL REQUIREMENTS
The purpose of this chapter is to specify the requirements of thermal labels to be used in Mettler
Toledo retail scale and pre-pack thermal printers. These requirements apply to your UC-ST printers.
This document includes dimensional requirements, for labels and label rolls, as well as general
requirements for label paper, thermal coatings, preprinting inks and adhesives. Use of label
materials and designs which meet with these requirements is necessary to ensure operation of the
printers in compliance with their respective functional specifications and satisfactory performance of
the label in the end use environment. Labels which do not comply with all of the requirements of
this document may function with limitations, but would need to be tested by the customer to insure
adequate performance in their application. Customer specified (COD) software is not covered under
this specification.
GENERAL REQUIREMENTS
Label Paper
DESCRIPTION, PRICE LABEL: Premium white color, black imaging, with protective coating
DESCRIPTION, DAY-GLO LABEL: Red orange fluorescent, black imaging, with protective coating
WEIGHT: 72 ± 7 grams/square meter
THICKNESS: 82 ± 14 µ meter (0.0032 inch)
ACTIVATION TEMPERATURE:
STANDARD: Initial 74°C (165°F); Optimum 83°C (181°F)
HIGH SPEED: Initial 66°C (151°F); Optimum 77°C (170°F) – for highest
speed printing
HOT BOX: Initial 83°C (181°F); Optimum 91°C (195°F) - for use on
food items which are kept warm
SURFACE SMOOTHNESS: The surface of the finished coated paper must be smooth to
prevent premature print head failure. Smoothness must be 40
Sheffield units or smoother.
ION CONTENT: Ions such as sodium (Na) and chlorine (Cl) can cause
premature failure of the glass overcoat of a thermal print head.
Paper manufactured specifically for thermal printing with low
ion content must be used.
STORAGE LIFE: 18 months minimum when stored at less that 85% relative
humidity and less than 35°C (95°F)
UC-ST User’s Guide 5-1