What is differentiated polyester staple fiber? Classification of differentiated polyester staple fibers
The term "differentiated polyester staple fiber" comes from Japan. It refers to the chemical fiber with innovation or certain characteristics to the conventional chemical fiber. Differential polyester staple fiber is mainly used to improve the wearability of fabrics, which is mainly used in clothing and decorative fabrics. The polyester staple fiber can improve the production efficiency, shorten the production process, save energy, reduce pollution and increase new textile products.
Differential polyester staple fiber is mainly prepared by chemical modification or physical deformation of chemical fiber. It includes modification in polymerization and spinning processes and deformation in spinning, drawing and deformation processes.
Brief introduction of common differential polyester staple fibers
1. Profiled fiber profiled fiber refers to the chemical fiber with special cross-sectional shape spun with profiled spinneret hole.
The special-shaped fiber has special luster, bulkiness, stain resistance and pilling resistance, which can improve the elasticity and coverage of the fiber. For example, triangular fiber is willing to have flash, pentagonal fiber has significant wool feeling and good ball resistance, pentaphyllal multifilament is similar to silk, and hollow fiber has small relative density, warm keeping and good hand feeling.
2. Microfiber microfiber refers to the fiber with a diameter of 5 μ M or less than 0.44 dtex. Superfine fiber has the characteristics of soft, smooth, good holding and soft luster. Its fabric is very fine, warm and has unique color. Moreover, it can also be made into cashmere style fabric. Superfine fibers are mainly used to manufacture silk fabrics, velvets, high-efficiency filter materials, footwear and synthetic leather for clothing.
3. Composite fiber composite fiber refers to the chemical fiber made by composite spinning of two or more polymers or the same polymer with different molecular weight. It can be roughly divided into parallel type, skin core type, dispersion type and so on.
The juxtaposed composite fiber is composed of two polymers distributed in parallel along the radial direction on the fiber section. The skin layer and core layer of skin core composite fiber are a kind of polymer respectively, which is divided into concentric circle and eccentric circle. Dispersed composite fiber is a kind of fiber in which one component is dispersed in the matrix of another component in the form of micro textile mill.
Side by side and half core skin core composite fibers have three-dimensional curl in three-dimensional space, and have high volume fluffy, extensibility and coverage ability. The composite fiber with the same core round skin core structure can use different components of the skin core to make the fiber have close-up properties. Dispersed composite fiber can be spun into superfine fiber, hollow fiber, etc.
Composite fiber can be used to manufacture wool fabric, silk fabric, artificial suede, waterproof and moisture permeable fabric, dust-free clothing and special filter materials.
There are many varieties of differentiated polyester staple fibers. In addition to the above, there are colored fibers, high shrinkage fibers, high moisture absorption, high water absorption fibers, antistatic and conductive fibers and flame retardant fibers.
