Overview
Direct Fast Sky Blue, also known as Direct Blue 71, is a synthetic dye belonging to the azo dye class. It is widely used in the textile industry for dyeing cellulose-based fabrics like cotton and silk. The dye is valued for its vibrant blue color and excellent resistance to fading under light exposure, making it suitable for applications requiring long-lasting color. The dye is synthesized through a series of chemical reactions involving diazotization and coupling processes. Its molecular structure includes sulfonate groups, which enhance its solubility in water. Direct Fast Sky Blue is commonly supplied as a fine blue powder, which dissolves readily in water to form a deep blue solution.
Physical and Chemical Properties
Direct Fast Sky Blue is characterized by its high molecular weight and complex structure, which contribute to its stability and colorfastness. The dye exhibits excellent solubility in water, forming a clear blue solution, and is slightly soluble in ethanol. Its melting point exceeds 300°C, indicating high thermal stability. The dye's key chemical properties include its azo linkage (-N=N-), which is responsible for its color, and sulfonate groups (-SO3Na), which improve water solubility. These properties make it particularly effective for dyeing cellulose fibers, where strong adhesion and color retention are essential. The dye's lightfastness and washfastness are among the highest in its class, ensuring long-lasting vibrancy in finished textiles.
Main Applications
Direct Fast Sky Blue is primarily used in the textile industry for dyeing cotton, silk, and other cellulose-based fabrics. Its excellent lightfastness and washfastness make it ideal for outdoor fabrics, upholstery, and garments that require frequent washing. The dye is also used in paper coloring, where it provides consistent and vibrant blue hues. In addition to textiles and paper, the dye finds applications in specialty areas such as ink formulation and leather dyeing. Its versatility and stability make it a preferred choice for manufacturers seeking reliable and long-lasting color solutions. The dye's compatibility with various dyeing techniques, including exhaust and continuous dyeing, further broadens its applicability.
Safety and Storage
Direct Fast Sky Blue should be handled with care to avoid health risks. Inhalation of dye powder or prolonged skin contact can cause irritation, so personal protective equipment (PPE) such as gloves and masks should be worn during handling. The dye is not classified as highly toxic, but proper ventilation is recommended in work areas. Storage conditions are critical to maintaining the dye's quality. It should be kept in a cool, dry place, away from direct sunlight and moisture. Containers should be tightly sealed to prevent contamination and degradation. In case of spills, the dye should be cleaned up promptly using appropriate methods to avoid environmental contamination.
B2B Procurement Guide
When procuring Direct Fast Sky Blue, B2B buyers should prioritize suppliers with a proven track record of quality and reliability. Key considerations include verifying the dye's purity, which can significantly impact its performance in end applications. Certifications such as ISO or REACH compliance can serve as indicators of a supplier's credibility. Price negotiations should account for factors like order volume, packaging, and delivery terms. Bulk purchases often attract discounts, but buyers should balance cost savings with storage capabilities. Additionally, buyers should inquire about technical support and after-sales services, which can be invaluable for troubleshooting dyeing issues. Sampling before large-scale procurement is recommended to ensure the dye meets specific requirements.
Related Manufacturers
- 主营：氧化铁颜料、沸石粉、铁砂、电气石粉、氧化铁棕、除渣剂、橡胶粉、氧化铁灰、四氧化三铁、高岭土、玻璃粉、磁粉、氧化铁黑、滑石粉、减水剂、碳酸钙、萤石粉、红色颜料、氧化铁黄、硅微粉、耐火材料、氧化铁红、伊利石粉、氟化钙粉、贝壳粉
- 主营：氧化铁颜料、铁粉、膨润土、宝蓝、珍珠岩、矿物纤维、木质纤维、硅酸铝纤维、海泡石纤维、云母粉
- 主营：氧化铁颜料、托玛琳球、二氧化硅、电气石粉、岩片、云母粉、硅藻土、高岭土、滑石粉、碳酸钙、火山石粉、膨润土、纤维、沸石粉、石墨粉、橡胶颗粒、沉淀硫酸钡、炭黑、仿瓷颗粒、远红外粉、铁粉、陶瓷球、白炭黑、硅灰石粉
- 主营：英国棕、黑金沙、安哥拉黑、宝蓝珠、蓝钻、皇室啡
- 主营：玺聪母粒、色母粒、黑色母粒、白色母粒、彩色色母
- 主营：滑石粉、电气石、石英砂、金刚砂、氧化铁、石墨粉、陶瓷球、膨润土、矿化球、高岭土、硅藻土、云母、氧化铁颜料、托玛琳球、防火涂料、岩片、仿瓷沙、纤维、火山石、铁粉、钙粉、远红外粉、玻璃微珠、夜光石、雨花石
- 主营：氧化铁颜料、石墨、托玛琳球、宝蓝、电气石、硅藻土
- 主营：6-萘二羧酸、邻苯甲酰苯甲酸、偶联剂、硅烷偶联剂、kh-602、十八硫醇、碳酸铯、胆酸钠、脱氧胆酸钠、去氧胆酸钠、去氢胆酸、溴代丙二醛、茶籽油、聚钨酸钠、氰乙酸甲酯、沙棘籽油、乙酰氧基氮杂环丁酮、桔子油、亚麻油、柠檬桉醇、芳樟醇、二氟苯胺、萃取剂、乙酰氧基苯乙烯
- 主营：地坪料、新疆银白色蛭石、云母、滑石粉、白炭黑、硅藻土、贝壳粉、玻璃粉、陶瓷砂、木粉、高岭土、重钙、轻钙、玻璃砂、玻璃微珠、活性白土、铁砂、珍珠岩、重晶石、膨润土、防火涂料、海泡石、硅灰、炭黑、营养土
- 主营：pla高温、pla塑料、塑料毛、六角025宝蓝点、pppe塑料、pp抗冲击、pp增韧剂、pp增强抗、塑料塑胶、pvc软塑料、抗静电剂、静电灰剂、pet聚酯类、pla增韧剂、抗翘曲剂、pla光亮剂、高温橡胶ac、pp塑胶制品、涂料增白剂、红色纤维点、高温润滑剂、耐高温纤维、色粉点塑料、塑料薄膜防、弹性提升剂、熔指提升剂
- 主营：倒角器、破窗器、配件包、打草轮、输出线、鱼护袋、测量仪、打钉枪、剥线钳、热电偶、合金钻、放大器、视频线、冰铲刀、音频线、传感器、钓鱼桶、镇流器、手工锯、接线盒、钉箱机、开孔器、春联纸、射钉机、一体桶
- 主营：路亚竿、plc模块、水滴轮、角磨机、抛光机、套丝机、控制器、螺母枪、抛光片、千分尺、拉铆枪、砂布卷、传感器、渔轮箱、铆钉枪、带砂布、槽刀杆、研磨机、水磨片、切槽刀、控制模块、采集模块、稳定电源、手撕砂布、玉石磨片
- 主营：果绿点、浅蓝点、tpu云彩、宝蓝点、塑胶中、大理石、深红点、tpu迷彩、黄短毛、abs流云、草绿点、色母粒、白长毛、tpu木纹、纤维点、浅灰点、长毛丝、colourno5、雾化粉、散光粉、黑短毛、tpu乱纹、abs迷彩、玫红点、毛点点
- 主营：浸酸剂、洗衣服、加脂剂、宝蓝、粘合剂、催化剂、渗透剂、助洗剂、增稠剂、活性剂、洗涤剂、分散剂、造纸助剂、石油助剂、纺织助剂、水性涂料、纺织浆料、硅油特滑、纺织物前、皮革助剂、防水助剂、颜料色浆、印花台板、染色助剂、环保杀菌、纯丙乳液
- 主营：医用内窥镜、气腹机、灌注泵、内窥镜影像系统