some introduction of micofiber

The most remarkable feature of microfiber is that the linear density of its single filament is much lower than that of conventional fibers, and the thinnest one can reach 0.0001 dtex. As a result of this remarkable characteristic of microfiber, it has many different properties from ordinary fiber. The main table is as follows: [1]


(1) Soft and delicate hand feel with good flexibility [1]


The cross-section diameter and fineness of microfiber are smaller than that of natural fiber, so its crimp modulus is lower, so the fabric has better hand softness; its bending rigidity is lower, so its fabric has good drape performance; compared with ordinary fiber, the crystallinity and orientation of microfiber are higher, which improves the relative strength of fiber, so the bending of fiber The strength and repeated bending strength are improved to make it flexible, smooth and soft. However, these properties are also related to the fabric structure, fiber mix composition, fiber mix ratio, etc. at the same time, for the deformed yarn, the decrease of monofilament fineness will lead to the poor fluffy. [1]


(2) Good wrinkle resistance and wear resistance [1]


However, for the same yarn size, the number of fibers in its cross-section is more than that of the conventional yarn, so the yarn strength is still relatively high; at the same time, it is conducive to sand washing or raising the fabric, so as to prepare high-grade fabrics such as velvet like, suede like and peach skin like, which have better wrinkle resistance and wear resistance. [1]


(3) Good fluffy and soft luster [1]


The superfine fiber has small fineness and high density, which increases the specific surface area and capillary effect of the fiber. While improving the coverage and fluffy of the fabric, the reflection of the light is also relatively scattered, so that the distribution of the reflected light inside the fiber is more delicate, so the luster is soft, making it have the luster of silk. [1]


(4) High density structure and high cleaning ability of fabric [1]


The fiber of microfiber is thin. In weaving, the warp and weft are easy to adhere to each other and extrude and deform, so it is easy to form high-density fabric. Its warp and weft density is several times that of ordinary fabric. After finishing, waterproof fabric can be prepared even without any coating. The fabric can be applied to raincoat, windbreaker, casual wear, sportswear, dust-free clothing, fashion and shoe fabrics 。 Similarly, due to its small monofilament density, when wiping objects with the woven fabric, the fine fiber looks like a sharp scraper, which is easy to scrape off the dirt. At the same time, the contact surface between the microfiber and the dirt is larger, so it is easier to stick, and has a strong wicking effect, so it is easy to suck the attached dirt into the fabric, avoiding the dirt scattering on the fabric The body is polluted again, so it has high cleaning ability and is the first choice of ideal wiping cloth and clean cloth. [1]


(5) Good heat preservation [1]


Because of its small fineness and more static air in the fiber assembly, microfiber is a better thermal insulation material. If some coarser fibers are mixed into the fiber assembly as scaffolds, the compression elasticity and fluffy of the scaffolds will be greatly increased. [1]


(6) High water absorption and oil absorption [1]


The fineness and specific surface area of microfiber become smaller and larger, thus forming smaller scale and more number of capillary holes, which not only greatly improves the moisture absorption of fabric, but also greatly improves its capillary core absorption capacity, so that it can absorb and store more liquid (oil or water). Therefore, microfiber can be used in the development of super absorbent products, such as super absorbent refills, super absorbent towels and other products. These pores can absorb a lot of water, so the microfiber has a strong water absorption, and most of the water adsorbed is stored in the pores, which can be dried quickly, thus effectively preventing the growth of bacteria. [1]


(7) A good carrier for enzyme and ion exchange [1]


Because of its large specific surface area, microfiber is a good carrier of bioactive agents such as biological enzyme and ion exchange agent, which can improve its activity efficiency, and can also be used in the fields of osmotic membrane, biomedicine (such as artificial skin, artificial blood vessels), etc. [1]


In addition, the microfiber also has the characteristics of anti microbial adhesion, anti shellfish and seaweed corrosion. However, there are some problems in the processing and application of microfiber. For example, large friction coefficient, low strength of monofilament and lower bending rigidity make the rigidity and fluffy of the prepared fabric lower; large specific surface area makes it difficult to desize, more suction, large dye consumption and uneven dyeing. Therefore, the dyeing and finishing equipment and relevant process conditions need to be properly adjusted during the processing and preparation process.



source:https://baike.baidu.com/item/%E8%B6%85%E7%BB%86%E7%BA%A4%E7%BB%B4/8730636?fr=aladdin