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Pattern and Run Numbers

Overview

Pattern and run numbers are two important keys to keeping wallcoverings matched throughout a job. Understanding these two codes will help the designer eliminate pattern or color variances in design jobs.

Key Points

During the manufacturing process, a pattern and dye-lot or run number is printed on each roll of wallcoverings. The pattern number identifies a particular design and color. The dye-lot number represents a particular group of rolls that are printed on the same print run.

The dye-lot number will change each time there is a change in the printing process. Different dyelot numbers could signal variables such as changes in tonal color, vinyl coating and/or consistency of the embossing process being used during the production of wallcoverings. Any of these variables could show a slightly different color in the wallcoverings, sometimes visible only when two different dye-lots are compared with each other.

It is very important that the interior decorator and installer check each individual roll in any wallcoverings shipment to ensure uniformity in color and pattern. It is also important to record pattern numbers and dye-lot or run numbers for future reference in case additional material is required.

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