Classification of polyester/cotton blended fabrics (fabrics)? What are the functions of polyester/cotton blended fabrics (fabrics)? What are the uses of polyester/cotton blended fabrics? Polyester/cotton blended fabric in English
2, the principle of antibacterial, moisture-absorbing and sweat-wicking finishing
(1)Moisture wickingFabric (cloth) finishing
Moisture wickingFabric (cloth) finishing, as the name suggests It is to make the fabric absorbent and quick-drying at the same time.
(a) Water absorption of fiber
Moisture wickingFabric (cloth)Fiber has the characteristic of water absorption. There are many micropores or fibril gaps and surface grooves on the surface of the fiber that communicate with the inside and outside, making it easy for moisture to enter. between fibers. At the same time, there are many tubular grooves or capillaries along the fiber axis, which provide channels for water migration, so the fiber has good water absorption. After absorbing water, it will not swell due to water absorption like cotton.
(b) Quick-drying properties of fibers
The moisture between polyester fibers mainly relies on the attraction of a large number of micropore capillaries to be absorbed by the fibers. Holding, or mechanically holding in capillaries between fibers, moisture is easily transported to the fiber surface and evaporates under normal ambient temperatures.
Moisture wickingFabric (cloth) fiber generally has a high specific surface area, and there are many micropores or grooves on the surface. The cross-section is generally a special shape, and the capillary effect is used to enable the fiber to quickly absorb moisture and sweat from the skin surface, and then evaporate through diffusion and transfer to the outer layer.
The moisture wicking performance of fiber depends on its chemical composition and physical structure. The gaseous moisture that evaporates from the skin surface is first absorbed by the fibrous material, a process we call hygroscopicity. Moisture is then released through the surface of the fiber material, and the liquid moisture on the skin surface is adsorbed, diffused and evaporated on the surface between the fiber materials due to the capillary effect produced by the capillaries, micropores, grooves inside the fiber, and the gaps between the fibers. , this process is a dehumidification process. The two processes result in water migration. The former is mainly related to the chemical composition of the fiber macromolecules, and the latter is related to the physical structure of the fiber.
Normalabsorbs and wicks sweatThe principle of fabric (cloth) finishing is to introduce affinity into the macromolecular structure through grafting or copolymerization. Water groups to increase the moisture wicking function of the fiber. Usually, carboxyl groups, amide groups, hydroxyl groups, amino groups, etc. are introduced to increase the affinity for water molecules and give the fiber a porous structure and a larger specific surface area.
Generally speaking, cotton is a hydrophilic fiber and has good water absorption, while polyester fiber is a hydrophobic fiber and does not have a hydrophilic group, so it has poor hygroscopicity. Determining the hygroscopicity of fibers is a basic evaluation method for moisture-wicking fabrics. Hygroscopicity indicates a fabric’s ability to absorb water, while wicking indicates a fabric’s ability to dry. According to the functional requirements of moisture absorption, antibacterial and deodorant, we use the moisture wicking finishing agent SW and the antibacterial and deodorizing finishing agent SCJ-891 produced by Beijing Jiershuanggao, using the polyester fiber and the hydrophilic copolymer to undergo a crystallization reaction to form on the fiber surface. The hydrophilic layer maintains the good moisture conductivity of the polyester fiber, thereby improving the wearing comfort of the fabric, reducing electrostatic adsorption on the garment, and can be washed repeatedly. The finished polyester-cotton fabric has the following functions:
(a) Sweat absorption and breathability: The finished fabric has excellent sweat absorption, good breathability, excellent wearability, and rapid moisture absorption. It is dry and quickly conducts sweat and moisture away from the skin surface, eliminating the shortcomings of synthetic fiber fabrics such as dryness, airtightness and sweat absorption.
(b) Hydrophilic and antistatic properties: The finished fabric has excellent hydrophilicity, good antistatic properties, small electrostatic effects, is not easy to absorb dust, and has certain antifouling properties. Easy to wash.
(c) Softness: The finished fabric is soft and smooth, comfortable to the touch, and elegant in style.
(2)Antibacterial and deodorantFabric (cloth) finishing
The fabric after SCJ-891 antibacterial finishing has obvious antibacterial, anti-inflammatory, deodorizing, anti-mildew, anti-itching and astringent effects. The antibacterial and deodorizing finishing agent SCJ-891 can be dyed inside the fiber at high temperatures and can be carried out in the same bath as dyeing. The fabric has good wearing properties and excellent washing fastness.
(a) Highly effective: only a small amount is needed to provide excellent Antibacterial effect.
(b) Highly strong: SCJ-891 can be fixed inside the fiber and protected by the fiber, thereby providing excellent functionality and wash fastness.
(c) Fresh and durable: Research results show that the use of SCJ-891 can reduce the generation of bad odors in textiles.
(d) User safety: The antibacterial agent contained in SCJ-891 has been used in cosmetics and household products for more than ten years and has been proven to be safe, reliable and harmless to the skin.
(e) High dye uptake rate: safe for the environment. AAGFREGRTTHR
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