Fabric functional finishing technology



Fabric functional finishing technology</p 1. Flame retardant finishing</p After the carcinogenic tris(aziridyl)phosphine oxide (TEPA) and tris(2,3 dibromopropyl)phosphonate (…

Fabric functional finishing technology</p

1. Flame retardant finishing</p

After the carcinogenic tris(aziridyl)phosphine oxide (TEPA) and tris(2,3 dibromopropyl)phosphonate (Tris) flame retardant finishing agents were banned in 1992 Polybrominated biphenyls (PBB) are also included in the banned list �以致在2003年以前的阻燃整理产品一直被Oeko-tex标准100拒之门外� �2003年版的Oeko-tex标准100中规定:按人类生态观点评估后,对人体健康是无害的,始可按Oeko-tex标准100接受I~Ⅲ类产品的认证申请� �目前尚在应用的阻燃剂情况如下:</p

Among the phosphorus-nitrogen combination flame retardants, the durable N-dimethylolphosphonacrylamide (NMPPA, Pyrovatex CP) and tetramethylol phosphonium salt (THPC or THPS) are based and combined with urea or ammonia Condensate (Proban or THPN) is still an important variety of durable flame retardant finishing of pure cotton. �</p

Brominated flame retardants used in synthetic fibers have been implicated in polybrominated biphenyls, such as decabromodiphenyl ether (Deca-BDE)/antimony trioxide and hexabromocyclododecane, which have good flame retardant properties. blame �欧盟耗时10年,多达588项风险评估,认定十溴二苯醚无毒,没有生物累积,非常稳定,不易降解,于2005年10月15日已列入豁免清单� However, quality requirements have been put forward for decabromodiphenyl: decabromodiphenyl ether content>97.4%, nonabromodiphenyl ether content<2.5%, octabromodiphenyl ether content

</p

2. Antibacterial finishing</p

  抑菌整理也称抗生物活性整理。现在抑菌整理所用的化学品都是从其他领域中移植过来的,都经过了严格09审查。2003年版的Oeko-tex标准100也终于网开一面,规定按人类生态观点评估后,对人体健康是无害的,可按Oeko-tex标准100接受I~Ⅲ类产品的认证申请。可是,在现用的有机抗菌整理剂中,能符合环保要求的品种却不多。

  美国道康宁公司为纺织品量身定制开发的DC-5700抑菌剂,于1976年投放市场。这是符合环保要求的抗生物活性剂,具有能与纤维素纤维发生化学反应,又能自身缩聚成膜的功能。不论在天然纤维和合成纤维及其混纺织物上均有良好的耐洗性。经整理后缩聚物不溶于水和油脂,不会经皮肤进入人体,仅杀灭接触纺织品的微生物,对常驻于皮肤上、毛孔内的微生物仍可安全无恙,不会产生耐药性菌株。这类有机硅季铵盐的抗菌整理剂国内有多家厂商生产。

  其次,20世纪80年代由ICI公司开发用于纺织品的双胍结构抗菌整理剂——Reputex 20,是一种阳离子聚合物。适用于纤维素纤维和羊毛及其混纺织物,其安全性曾获美国FDA和EPA认可。据称经洗25—50次后仍具良好的抑菌性。整理后通过有机酸或其盐的水溶液处理,可提高耐洗性、耐氯漂性和抑制其吸氯泛黄问题。

3. Coating, lamination finishing</p

  生态环保对涂层整理的要求,首先反映在溶剂涂层剂逐步由水性涂层剂取代。如北京度辰新材料的水性有机硅涂层胶CT-500E系列,杭州传化的水性聚氨酯涂层胶TF-673等。此外,德国瓦克公司有100%有机硅涂层剂系列(LSR、HTY.RTV-l和RTV-2)和水性乳液型Finish CT系列。

  层压加工热熔粘合法已成为主流,其加工工艺可纳入清洁生产技术行列。国内聚氨酯聚乙烯和聚四氟乙烯的微孔薄膜都能自行生产。由中国纺织科学研究院开发的无孔防水透湿聚氨酯薄膜,系藉分子中亲水基团传导湿气,其透湿量达3000~4000g/m2/24hr。在多家生产聚四氟乙烯微孔膜的基础上,近开发出PT-FE/PU复合微孔膜,对复合产品洗涤后的耐水性提高有明显的作用。

Comparative tests on the wash resistance of laminated products point out that products laminated with hydrophilic films (whether PU films or PES films) have good moisture permeability, water pressure resistance and wash resistance. This is the advantage of their films. Good fastness, not easy to cause damage, suitable for frequently washed clothing such as windbreakers, jackets and sportswear, etc. �PEFE和TPU微孔薄膜层压的产品适用于不常洗涤的服装,如防寒服和工作服等� �</p

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