Recently, Germany has developed and launched a new concept textile raw material for dralon ultra-fine, profiled acrylic fibers. Dralon fine denier profiled acrylic fiber is derived from the German dry spinning technology. The fiber has a dumbbell (dog bone) shaped cross section. The surface and inside of the fiber have few micropores, and the fiber fineness is 0.6dtex ~ 0.9dtex. Dralon ultrafine acrylic fiber has a smooth surface and a dumbbell-shaped cross section, making the fiber feel soft and refreshing, good coverage, fluffy and full, strong water transmission, dry and breathable, comfortable to wear, easy to dye, bright color, elegant gloss, resemble Wool, anti-sun, good weather resistance and mildew resistance. Dralon fine denier profiled acrylic fiber textiles are widely used in the field of apparel and home textiles, and the market development prospects are very promising. A few days ago, the only distributor of German dralon cotton, ultra-fine, and shaped acrylic fibers in China, Shanghai Rishu Technology Textile Co., Ltd. held a promotion meeting at the Shanghai Textile Research Institute to introduce participants to dralon ultra-fine acrylic fiber products The characteristics have aroused great interest from the participants.
Unlike the circular or bean-shaped cross-section of Nissan acrylic, the German dralon ultra-fine acrylic cross-section is double T-shaped, which is why it has several characteristics. The axial ratio of the cross section of dralon ultrafine acrylic fiber is about 3: 1 ～ 2: 1, and the flexural modulus of the fiber along the axis is about one-half of the circular cross section. This feature is excellent for woven sweaters and hosiery fabrics. value. The elastic recovery rate of dralon ultrafine acrylic when stretched by 1% p3% is 99%, 90% ～ 95%, crimp elasticity is 85% ～ 95%, the fiber modulus is higher than that of Nissan acrylic, 33.5cN ～ 46.1cN / dTex makes it soft and has high elasticity and modulus. Therefore, compared with Nissan acrylic, German dralon ultrafine acrylic performance is closer to wool. Due to its double T-shaped cross-section, the arrangement of individual fibers in the fiber group is different from the circular cross-section of Nissan acrylic. The fibers are not easy to gather closely. The air between the fibers is filled with an insulation layer. , So that it has good fluffy p coverage and warmth, the thermal insulation performance per unit weight is 20% higher than wool. Compared with the Nissan acrylic with a circular cross section, the acrylic developed from Germany has a 30% higher bulkiness and a 10% higher bulkiness. Under the same coverage and thermal insulation effect, it can be used by 10% less The left and right fibers reduce the weight of the fabric accordingly.
The German dralon ultrafine acrylic fiber has a slow fiber forming process, and the fiber cross-sectional structure is uniform and dense, so that the fiber has good physical and mechanical properties and dyeing properties. There are voids and gaps in the Nissan acrylic fiber. Although it is strictly stretched and densified, its fiber elasticity, hook strength, gloss and other indicators are not as good as it. The elasticity of German dralon ultrafine acrylic fiber is about 10% ~ 20% higher, generally its hook strength is about 60% of dry strength, while the daily production of acrylic fiber is between 40% ~ 45%. German dralon ultrafine acrylic fiber has a uniform and dense cross-sectional structure, which also makes the fiber have unique heat shrinkage properties. The fiber shrinks when it is wet at 100 ° C, so this fiber does not need to be given high-temperature treatment like Nissan acrylic in the post-processing process (Nissan acrylic usually shrinks significantly under the steam pressure of 1.96 × 105Pa.) During the textile processing process, the conditions for diversification of color varieties are provided.
Surface morphology is an important morphological structure of acrylic fiber. German dralon ultrafine acrylic fiber is formed slowly in a hot inert air flow without touching the coagulation bath. Not only does the resulting fiber have a uniform and dense cross-sectional structure, but also the surface of the fiber is different from the creases of Nissan acrylic fiber, but very smooth. The fiber has elegant gloss, good elasticity and resilience, and the fabric has the style of animal skin. Due to the smooth surface of the fiber, the oil agent can effectively and evenly adhere to the fiber surface during the post-treatment process, and the amount of oil agent is also less than that of Nissan acrylic fiber. After repeated washing, the fiber style does not change much. There is a large capillary area between the monofilaments in dralon ultra-fine acrylic fiber. In addition to the excellent fluff and warmth performance, it also has excellent moisture wicking ability, which allows the fabric to expel the moisture generated by the body faster. Avoid the feeling of dampness.
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