Product Quality

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ITC3009 Product Quality and Evaluation
Student: Kong Ka Yu Kate
ID: 11301265D
Lesson 5 Fabric Properties
Homework
1. A
2. A
3. A
4. E
5. List some important physical properties of the fabric.
The properties of textile fabrics are important for the control of quality, as well as for end use determination.
There are several physical properties of fabric which affecting the performance and aesthetic of fabric.
The first one is fabric count, it influences thickness of the fabric. It is the number of ends or picks per inch for woven fabrics, or the number of wales or courses per inch for knit fabrics. Variation occurs because of the weaving or knitting process and from finishing processes. Usually the higher the fabric count, the better the quality and the higher the cost.

The second is fabric unit weight. It is the mass per unit area. It is expressed in one three ways; ounces per square yard, ounces per linear yard, and linear yards per pound. It is significant in determining both end use and quality. Moreover, it is fabric width. It means the distance from one edge to the other. Measurement is made perpendicular to the fabric edge, usually including the selvage area. The width is expressed in inches and is usually an average number of measurements taken at evenly spaced interval along the fabric pieces. Next one is fabric shrinkage. It is the process in which a fabric becomes smaller than its original size, usually through the process of laundry. It is undesirable property to the apparels. So the material has to be either shrink resistant or shrink recoverable, such as anti-shrink finish is to keep the fabric smooth and free from undesirable shrinkage.

The last one is fabric thickness. It is the distance between the upper and lower surfaces of the material. It is measure under a specific pressure. Warmth and bulk properties depend on the fabric thickness- to-weight ratio. It can also be used as a performance...
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