Characteristics and main parameters of slub yarn

Slub is a kind of common defect in textile production. Due to the influence of some problems in the spinning process, such as drafting, uneven thickness and so on, the yarn has uneven fineness, forming a bulge similar to a slub, producing slub defects and affecting the quality of the fabric.
However, when the bulges like bamboo knots form a uniform distribution on the fabric surface, a special style can be formed on the fabric surface to produce a unique fabric style and meet people's requirements for diversified fabric styles. So in the spinning process, it is believed that the yarn density will change regularly or irregularly in its length direction to obtain slubby yarn, and this yarn will be used in the production of fabrics to form slubby yarn fabrics. With different slub parameters, slub fabrics can form quite personalized literary and physical characteristics
The production of slub yarn originated in the 1970s. Since its appearance, it has attracted worldwide attention due to its special texture effect. In recent years, it has been widely used in clothing and decorative textiles.
features
Slub yarn is characterized by uneven thickness distribution, which is one of the most types of fancy yarn, including thick and thin slub yarn, knot shaped slub yarn, short fiber slub yarn, filament slub yarn, etc. Slub yarn can be used for light and thin summer fabrics and heavy winter fabrics. It can be used for clothing fabrics and decorative fabrics with prominent patterns, unique style and strong three-dimensional sense.
The nominal number of slub yarn is generally named after the number of base yarn. For example, C14.5tex slub yarn means that the slub spacing is the number of normal yarn, while the number of slubs is larger. In actual production, when spinning slub at variable speed of front roller, the slub yarn is generally produced by setting the high speed and twist value of base yarn to spin the normal number of base yarn and then setting the low speed value and other slub parameters.
At present, slub yarn is widely used in the production of all kinds of fabrics, which is in line with the current trend and widely popular. Generally speaking, according to the form of slub yarn spinning, there are rotor spinning slubs and ring spinning slubs; According to the length of bamboo knots, there are long bamboo, medium bamboo and short bamboo; According to the multiple of knots, there are thick bamboo, medium bamboo and fine bamboo; wait.
Main parameters of slub yarn
Slub yarn parameters include base yarn density, slub thickness, slub length and slub spacing.
Due to the special structure of slub yarn, the fabric style is closely related to the above four parameters. Its various combinations determine its special style on the fabric. There are four main methods.
Because the slub part of slub yarn is thicker, the twist added to the slub part is less during spinning, and the fiber of the slub section is loose, which makes the absorption of dye in the thick section and the thin section of slub yarn inconsistent during dyeing, and then the style of raindrops or raindrops will be formed according to the length of the slub.
Different raw materials have different styles: for example, the slub yarn woven with single yarn made of ordinary cotton and polyester is more obvious; The profiled fibers such as cationic polyester, strong light polyester, viscose, etc. are used to form fine slubs, and then twisted with ordinary yarn to form a thread, which can be made into high-grade fabrics.
The 48.6-58.3tex (Nel2-10) slub yarn is spun on a rotor spinning machine, and its slubs can be 1.3~1.8 times higher than that of normal yarn. With the change of slub spacing and length, high-grade fabrics with hemp style can be woven.
By using the different length, thickness, pitch and raw materials of the slub part of slub yarn, a variety of colorful and different styles can be developed to meet the needs of different consumers.