Cloth cover factor of a square plain jammed cotton fabric, accurate to one decimal place, is________.
Cloth Cover Factor Definition
The Cloth Cover Factor measures the area percentage of the fabric surface covered by the yarns. It indicates the fabric's density and compactness.
Fabric Type and Cover Factor
For a square plain jammed cotton fabric, the warp and weft counts are typically similar, and the weave structure is tightly packed ('jammed'). This construction leads to a specific range for the cloth cover factor.
Determining the Cover Factor Range
While the exact cover factor depends on specific yarn sizes and thread counts, a square plain jammed cotton fabric characteristically has a high degree of yarn coverage.
- The given correct answer indicates the value lies between 22.8 and 23.1.
- This range is consistent with densely constructed plain weave cotton fabrics where yarns effectively cover the fabric surface.
Therefore, based on the typical properties of such fabrics, the cloth cover factor falls within the specified range.
Important Questions from FABR Fabric Geometry Fabric Cover Factor
- A woven fabric has weft yarn of 24 tex and pick density of 25 per cm. It is desired to replace only the weft with a 6 tex yarn of same packing density. The pick density per cm required to keep the fabric cover same (answer in integer) is ________.
A series of plain knitted fabrics has varying stitch length ($\ell $). The fabrics are composed of cotton yarns having same packing density but differing in linear density ($T$). The ratio between tightness factor and areal density of the fabrics is proportional to
For a given woven fabric, fractional cover is 0.5 for both warp and weft. The fractional cover of the fabric, (rounded off to two decimal places), is____.
- A plain woven fabric with 20 ends per cm and 30 picks per cm is prepared with 30 tex warp yarns and 25 tex weft yarns. Neglecting yarn crimp, the areal density ($g/m^2$) of the fabric (in integer) is ________.
- A yarn is unravelled from a woven fabric specimen of $1 \text{ m} \times 1 \text{ m}$ size. If the length of the straightened yarn is 1.1 m, then the crimp percentage (in integer) is ________.
