By: Donald L. Bailey
In textile production, one of the most common and perplexing quality issues is "barré." The factors that can cause or contribute to barré are varied and diverse. For this reason, when a barré problem is detected, the skills of a sleuth may be required to expose the problem and eliminate its cause. Once a cause is identified, steps can be taken to minimize or eliminate the barré, and better quality fabrics can be produced. This discussion will center on knitted fabrics.
Identification of Barré
The first step in a barré investigation is to observe and define the problem. Barré can be the result of physical causes that can usually be detected, or it can be caused by optical or dyeability differences that may be nearly impossible to isolate in the fabric. Barré analysis methods that help to discriminate between physical barré and barré caused by other reasons include Flat Table Examinations, Light Source Observation, and the Atlas Streak Analyzer.
About the Author:
Donald L. Bailey is a Vice President, Textile Research and Implementation, Cotton Incorporated.