Overview of Jute Fabric
Jute fiber is composed of cellulose, hemicellulose, lignin and other chemical substances. Jute fiber has high strength, high initial modulus and low extensibility. Because it contains more lignin, jute fiber is thick and hard, yellow-brown in color, and has poor flexibility. The fabric industry generally uses carded craft fibers. Jute fibers are mostly pentagonal and hexagonal with multiple cavities in the middle, while flax fibers are polygonal with cavities in the middle. In terms of thickness, jute fiber is obviously thicker than flax. Jute has a higher gum content, while the surface of flax fibers is cleaner than jute. A comparative analysis of the fiber properties of jute and flax made into hemp, it was found that flax has better properties than jute in terms of fiber fineness, tensile properties, moisture absorption and release, and morphological appearance. But the difference between the two is not very big, especially if appropriate pre-treatment process is adopted, jute fiber with better performance can be obtained, which is entirely possible to partially replace flax fiber in practical applications. The linear density of jute fiber has a great influence on product development and product style. Generally, higher-end products can be developed with linear density. The factors that affect the linear density mainly include agricultural factors such as botany and cultivation, as well as technological factors such as degumming and carding. Under the same process, the differences between varieties are relatively large. Jute varieties include round-fruited varieties and long-fruited varieties. Usually the linear density of flax is 2.3-3.2tex, while the linear density of jute is generally 2-3. Within the range of 3.5 tex, because the number of cells in each fiber bundle of round fruit species is less than that of long fruit species, the area of fiber cells, the area of the middle cavity, the width of fiber cells, and the area of cell bundles are all smaller than those of long fruit species, so the round fruit species The linear density of the technical fiber of this species is higher than that of the long-fruited species. Different parts of the hemp stem have different linear density of technical fibers. The linear density of the technical fibers in the hemp stem is a combination of two factors: the proportion of primary phloem cells and secondary phloem fiber cells in each part and the maturity of the fiber cells. As a result, the linear density is small in the middle and large at the base.
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