Three different nonwoven fabrics, namely jute, polypropylene and recycled polyester, have been produced using needle-punching method. The nonwoven fabric samples are then characterised by thermal conductivity, thermal resistance, air permeability, areal density and thickness. Objective and subjective evaluation are carried out for the fabric samples. The fibres are blended in various proportions and further converted into cross laid needle punched nonwoven fabrics. The thermal resistance of carded needle punched nonwoven fabrics are determined by using lee’s disc apparatus. Experimental results show that 100 % recycled polyester nonwoven fabrics thermal resistance behaviour is higher than the jute and polypropylene needle punched nonwoven fabrics. This nonwoven fabric can be used in the automotive field as a headlining material for the purpose of thermal insulation.

中文翻译：

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汽车纺织品用黄麻、聚丙烯和再生聚酯无纺布的隔热性能

三种不同的非织造布，即黄麻、聚丙烯和再生聚酯，已使用针刺方法生产。然后通过热导率、热阻、透气性、面密度和厚度来表征非织造织物样品。对织物样品进行客观和主观评价。纤维以各种比例混合，并进一步转化为交叉铺网针刺非织造布。粗梳针刺非织造布的耐热性用李氏圆盘仪测定。实验结果表明，100%再生涤纶无纺布的耐热性能高于黄麻和丙纶针刺无纺布。