Thesis Details

Thesis Title: The effects of dye class, chemical system, shade and temperature on near infrared readings on fixed resin levels in finished polyester/cotton blend fabrics
Thesis Author: Ernest C. Andrews
Abstract: Durable press finishing imparts characteristics to a fabric which are very desirable in todayVs market. Crosslinking resins are used to impart this finish which helps to control shrinkage and gives fabrics crease resistance, or permanent press characteristics. Most current methods for detecting the amount of res on a fabric are very subjective and do not give the actual amount of resin present. The only method which does give the actual amount of resin present is the Kjeldahl test. The drawbacks to this test are that it is very time consuming and requires trained personnel. Recently, it has been shown that Near Infrared Reflectance Analysis is a quick, easyu and accurate method of determining the amount of resin on a fabric. Variables that may be encountered using NIRA in a production environment were studied in order to determine how they would influence the MIRA measurements. The results show that a simple bias adjustment is all that is necessary in order to make a calibration previously developed for reading fixed resin accurate for all variables examined in this thesis. MIRA is a quick and easy method to determine resin content. Labor costs and off quality may be reduced in this technology is used in production environments.