1, stretchability: 9 12 Knitted fabric consists of loops. When the external force acts, the coil column and coil in the coil are transferred, and can be restored after the external force disappears. This change may occur in both longitudinal and transverse directions of grey cloth, and the degree of occurrence is related to the type of raw materials, elasticity, fineness, loop length and dyeing and finishing process. Therefore, the knitted clothing feels soft and elastic, and it fits the body very well, which not only shows the ups and downs of the human body, but also does not hinder the movement of the body. This is a remarkable feature of knitted garments.
2. Detachability: When the yarn of knitted fabric is broken or the loop is disconnected, it will be separated in a certain direction, resulting in the loop being separated from the loop. Therefore, this phenomenon should be fully considered when designing styles and sewing techniques, and corresponding measures should be taken to prevent it.
3. Curlability: The edge of 9 12 knitted fabric will be wrapped in a free state, which is called Curlability. This is caused by the internal stress of the curved line segment in the coil trying to straighten the line segment. When sewing, the curling phenomenon will affect the sewing worker's operation speed and reduce the work efficiency. At present, a kind of glue spray is used abroad to overcome the curling phenomenon by spraying it on the cut cloth edge.
4. Breathability and hygroscopicity: The loop structure of 9 12 knitted fabric can store more air, so it has good breathability, hygroscopicity and warmth retention, and is comfortable to wear. It is a fabric with good functionality and comfort, but the finished product should be ventilated and kept dry during circulation or storage to prevent mildew.
5. Shear resistance: The shear resistance of 9 12 knitted fabric is manifested in two aspects: first, because the fabric surface is smooth, it is easy to slip between layers when cutting with an electric knife, so that the upper and lower layers are different in size; Second, when cutting chemical fiber fabrics, the speed of the electric knife is too fast. The paving material is thick, and friction heating is easy to melt and bond chemical fiber.
6. Weft skew: When the longitudinal row and horizontal row of cylindrical weft knitted fabric are not vertical. Weft skew is formed, and the products sewn with this grey cloth will be deformed after washing.
7. Process flexibility: In the sewing process, the knitted fabric will shrink to a certain extent in the length and width direction, and the ratio of its shrinkage to the length and width of the original piece is the sewing process shrinkage rate. Shrinkage rate is related to fabric structure, type and fineness of raw materials, dyeing and finishing methods and other conditions. Process shrinkage is an important characteristic of knitted fabric, and sewing process shrinkage is a process parameter that must be considered in pattern design.