| At present, the manufactures and research institutions both in home and abroad are investing huge amount of capital and energy in developing non-wovens for apparel. The driving force of their motivation is the need to produce apparels for advanced wool products with enhanced mechanical properties, improved wearing characteristics as well as reduced manufacturing costs. One of those areas which has not been fully explored for wool products is the fibrous assemblies, which is usually referred to as 'non-wovens'. Thereby, the work of developing the new type of the wool products with the hydro-entanglement bonding technology is of great social significance.This paper mainly focuses on the study of the consolidation mechanism of spunlaced wool nonwovens. The structure, the properties and the processes of the composite material have also been discussed.Wool, wool-type polyester and different kinds of enhanced materials were used in this research. Such basic performance indexes as modulus, tensile strength of these materials were tested firstly. Then the preliminary experiments were carried out. According to the material characteristics and analysis of the preliminary experiments' results, proper equipments configuration and appropriate technological parameters were chosen for the experiments of next step.With the preliminary experiments' data, these conclusions can be made: The wool can be bonded together by the hydro-entanglement technology. Under the same process condition, the entanglement of wool-like polyester fibers is better than wools, which is possibly caused by different fibre hygroscopic capability and capability to absorb water. There is notable linear correlation between the tensile strength and tearing strength for all the samples. The upper layer and the lower layer are fibre web while the middle layer is the enhanced material. These materials are entangled together in a sandwich structure. In the spunlace process, the water attached to the surface of the wool is helpful to make the fibres bonded, while the water absorbed is not. The wool moving in the hydro-entangled nonwovens is the whole phenomenon, the fiber moves slowly with the reduced fiber diameter;The production of wool nonwovens was carried out on the combed machine and the spunlace machine in the Nonwoven R&D Center. The process could be controlled by adjusting the following parameters: the density of the fiber web, the category of enhanced material, the number of fibers passed and the water pressure. Then the structures and properties of hydro-entangled non-wovens could be analyzed. The parameters in process have the following influence on the performances of wool products: the MD tensile strength and bursting strength of non-wovens were enhanced with increased main water pressure and open areas in the enhanced materials; The influence of main water pressure was the most significant, while number passes had the minimum effect; the mean value of stiffness increased significantly with the density of the fibre web, while number passes had the minimum influence; The air permeability decreased with the increase in the density of the fibre web, water pressure and number passes; The abrasion resistance almost remained the same. The breaking principle of the wool products was also discussed; the result showed that the breaking of the material means the damage in the connection among the different layers, that is, the damage in between the tendon and fibre web interface. The key of this part was to discuss the relationship between the mechanical properties and the hydro-entanglement intensity. In the orthogonal experiment, the values of the mechanical properties did not increase with increased hydro-entanglement intensity. They even decreased sometimes. In addition, conclusion could be made that fibers which conformed to the stress model of hydro-entanglement wool nonwovens were easier to be bent. The more of these fibers, the easier the fiber web could be entangled and consolidated.
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