nonwoven interlining结构

There are three main process parameters - temperature, pressure, time. It mainly depends on the type of lining and performance on the hot melt adhesive, fabric and bonding equipment. Reference parameters provided by the lining manufacturer. Garment factories should be chosen accordingly for bonding fabrics and interlining trial, from which to select the best bonding process. 1, temperature: lining fabric and glue, bonding temperature and bonding time and stress-related, time and pressure must, if the temperature is too low then the lack of adhesion, peel strength, and washing was reduced; If the temperature is too high then the fabric is easy yellow, peel strength will be reduced. Therefore, the bonding temperature should be based on the thermal properties of adhesives and fabrics to decide. 2, pressure: pressure has three role. a/ close to the lining and fabric, easy to heat conduction. b/ the shear stress given to melt, so that lower melt viscosity of hot melt adhesive, hot melt adhesive to facilitate the flow of infiltration. c/ reduce the gap between the hot melt adhesive and fabric, easy to melt embedded within the fabric, but also easy to melt and the fibers of molecular chains of mutual diffusion of molecular chains can improve the bonding strength. Bonding pressure determines the size of the heat flow properties in the melt. Pressure is too small to affect the peel strength; excessive pressure will not only result in the phenomenon of infiltration material, but will affect the fabric feel, fabric surface caused by the aurora. Fusible interlining cloth Pressing pressure range: Shirt Interlining (PE plastic) 2 3gkf/cm2 Coat interlining (PA, PET plastic) 0.3 0.5kgf/cm2 Fur Interlining (PA, EVA glue) 0.2 0.3kgf/cm23, bonding timeBonding process can be divided into three stages, each stage is the heating time required for the time t1, the actual bonding time and fixation time t2 t3. Fixation is due later in the removal of pressure, so often seen as a bonding time t1 and t2 and: t = t1 + t2. Heating time t1 and the fabric thickness and thermal conductivity, but also with the way the heat transfer bonders. Garment factories in the adhesive, before testing the heating time of the selected fabric t1, t2 actual time depends on the hot melt adhesive infiltration time and the diffusion rate, and then bonding time can be accurately determined. Hot melt adhesive can be extended to fully infiltrate the fabric of time and spread to infiltrate the internal fabric is conducive to the improvement of peel strength. But for too long will produce adhesive infiltration material (a plastic) phenomenon. Fusible interlining cloth bonding time range: Shirt Interlining (PE plastic) 15 15s Coat interlining (PA, PET plastic) 12 20s Fur Interlining (PA, EVA glue) 10 15s