内衬层是全钢或半钢子午线轮胎的部件之一,有着保护胎身、防止空气及湿气渗透到胎体层内部的作用,从而避免锈蚀和破坏胎体钢丝帘硫化后产生局部露帘线或帘线弯曲。对于无内胎轮胎来说,内衬层则起着内胎的作用,其耐透气性能优劣,能否保持轮胎腔体内压正常将直接影响无内胎轮胎的正常使用情况。由此,对内衬层质量的要求是既要有良好的气密性,又要与胎体帘布层有良好的粘合性,保证成型过程中胎胚 The inner lining is one of the components of all-steel or semi-steel radial tire, with the function of protecting the tire casing and preventing the infiltration of air and moisture into the interior of the carcass layer, so as to avoid rusting and damage to the carcass steel wire curtain to generate local dew Curved wire or cord. For tubeless tires, the inner lining plays the role of the inner tube, its resistance to breathable performance, the ability to maintain normal pressure within the tire cavity will directly affect the normal use of tubeless tires. Thus, the quality requirements of the lining is both good air tightness, but also with the carcass ply good adhesion to ensure that the process of forming the green tire