typical2006
PU和SP的面料英文缩写不都是指氨纶。PU面料指合成革、人造革，SP面料指氨纶。
虽然SP面料是PU材料的其中一种工艺成品，但常见的PU面料指的是合成革、人造革，所以两者在面料方面是不同的。
在服装行业，PU常用的工艺有以下两种，也是PU和SP的区别：
1、聚氨酯浆料（PU面料）
聚氨酯浆料用作涂层制备聚氨酯合成革、人造革。聚氨酯合成革具有光泽柔和、自然，手感柔软，真皮感强的外观，具有与基材粘接性能优异、抗磨损、耐挠曲、抗老化、抗霉菌性好等优异的机械性能，同时还具备耐寒性好、透气、可洗涤、加工方便、价格优廉等优点，是天然皮革的最为理想的替代品；
2、聚氨酯纤维（Spandex，简称氨纶、SP）
突出的高回弹性，氨纶的高回弹性是目前所有弹性纤维都无法比拟的，它的断裂伸长率大于400%，最高可达800%，即使在300%拉伸形变时，回弹回复率仍在95%以上；优异的抗张强度、抗撕裂强度；耐候、耐紫外线照射能力强；耐化学品、耐洗涤；与染料的亲和性好。
扩展资料：
氨纶已被广泛应用于纺织品中，是一种高附加值的新型纺织材料，其使用形式主要有四种：裸丝、包芯纱、包覆纱、合捻线。如丝袜、泳衣、舞蹈衣、莱卡（纯棉包覆氨纶丝）、服装等，在传统纺织品中，只需加入不到10%数量的氨纶，就可以使传统织物的档次大为提高，显示出柔软、舒适、美观、高雅的风格。
氨纶的特点在于突出的高回弹性，氨纶的高回弹性是目前所有弹性纤维都无法比拟的，它的断裂伸长率大于400%，最高可达800%，即使在300%拉伸形变时，回弹回复率仍在95%以上；优异的抗张强度、抗撕裂强度；耐候、耐紫外线照射能力强；耐化学品、耐洗涤；与染料的亲和性好。
参考资料来源：百度百科-氨纶
完善自已
N220High resistance and abrasion resistance, 10-20% higher than N330, it has high tensile strength and tensile strength, and a certain conductivity. Carbon black, used for reinforcing type, tire surface industrial rubber products of high quality and high load of conveyor belt.N234Wear-resisting performance, high dynamic stability, low resilient rate. High-performance car tire tread, high quality industrial rubber products with high load transport.Carbon, can give better strong stretching, resisting avulsion intensity, abrasion and elastic. Tire sidewall with beam layer, and solid tyres, roller, plastic outer surface, industrial rubber products, car tire tread.N330High wear-resisting, high hardness and high viscosity, applicable to the side, buffer layer, shoulder pad ZiKou glue, glue, triangle.N550In the soft carbon black with the best in reinforcing performance, excellent extruding performance, low resilient rate. Carcass and inner tire rubber, plastic, extruding bar, seal and mould, cable material industrial rubber products.N660Compared with strong sex, N550 low, structure, low inflation, high embouchure filling quantity. Inner tire and rubber mold and extrusion application, ordinary, monolayer moistureproof system products, rubber belt, cable, shoes and calendering products, products
开心3点0
不是。PU是poly urethane的缩写，化学中文名称为聚氨酯；SP是Spendex的缩写，化学中文名称为聚氨基甲酸酯纤维，简称为氨纶 。
PU皮革的表皮是聚氨酯成份，目前广泛应用于服装、鞋、箱包、车辆和家具的装饰，它已经日益得到市场的肯定，其数量之大，品种之多，应用范围之广，是传统的天然皮革无法满足的。
氨纶是一种弹性纤维。氨纶一般由多根长丝组成，一般为10D/根，现时已有15D/根，甚至20D/根，理论根数愈少，条干均匀度愈好，因重叠形态之机会率愈少，干法纺丝之生产溶液DMAC对人体之肝脏有害，一般10D/根内含控制0.5mg/kg，如15D/根则含0.7mg/kg，超过标准。
扩展资料：
在中国，人们习惯称用PU树脂为原料生产的人造革为PU人造革(简称PU革)；用PU树脂与无纺布为原料生产的人造革称为PU合成革(简称合成革)。其清洗方法为：
1、沾水及洗涤剂清洗，忌汽油擦洗。
2、不能干洗。
3、只能水洗，且水洗温度不能超过40度。
4、不能用阳光曝晒。
5、不能接触一些有机溶剂。
6、PU皮的外套需要挂装套袋收藏,不可以折装。
氨纶弹性优良，而强度比乳胶丝高2～3倍，更耐化学降解，并且线密度也更细。氨纶的耐海水性、耐干洗性、耐酸碱性、耐汗、耐磨性均较好。
参考资料来源：百度百科——氨纶
百度百科——PU
开运潇潇
N220 High wear resistance and crack resistance, wear resistance 10% higher than N330 -20%, giving the particles a higher tensile strength and tear strength, and have some electrical conductivity. Reinforcing type carbon black for tire tread, high quality industrial rubber products and high-load conveyor belt. N234 Excellent wear resistance, high stability, low rebound. High-performance passenger car tire tread, high quality industrial rubber products with high-load transport. Reinforcing good performance of the carbon black particles can give better tensile properties, tear resistance, abrasion resistance and flexibility. Tire belt, sidewall, solid tire, roller coating, tube surface, industrial rubber products, passenger car tire tread. N330 High wear resistance, high hardness, high viscosity, suitable for side tires, the buffer layer, pad plastic, triangular rubber, plastic bead. N550 Carbon black in the soft varieties have the best reinforcing performance, very good extrusion performance, low rebound. Matrix and the rubber tube, hose, extruded plastic strips, seals and die, cable sheathing material and other industrial rubber products. N660 Compared with N550, less reinforcement, structural low, high lip swelling, filling volumes. Casing and inner tube rubber, general molding and extrusion applications, single-moisture system products, hose, tape, cable, footwear and rolling products, model products
