This article aims to determine the peeling strength of the different adhesive conditions by using four kinds of fabrics; serge, muslin, gerogette and taffeta, and both-sided non-woven fusible interlinings with a spider's web-like polyamide resin. The adhesive conditions are temperature, pressure and duration of steaming time. The results are summarized as follows: (1) The peeling strength seems to be influenced by the temperature, pressure and the duration of steaming time. (2) With increased temperature and pressure, the resin of interlinings tends to penetrate into an inside of yarns of a serge and muslin. (3) If adhesive without steaming, the resin melts into a filmlike layer. If adhesived with steaming, however, it melts into a spider's web-like nets. (4) When two different kinds of fabrics are adhesived, the peeling strength is influenced by the fabric with lower peeling strength.
Fabrics change their mechanical properties by the cyclic shearing deformation under a constant tensile extension. Mechanical properties, however, recover their properties nearly to the original condition if the fatigue of fabrics does not reach the critical state. This article investigates the recovery characteristics of mechanical properties, i.e., tensile and shearing properties during a fatigue process. Analyses have been made for each recovery curve by using the following approximated equation Zp-1=α+β⋅exp (-t/T0) …………… (1) where, Zp: ratio of measured value to the original one, α: residual amount of mechanical property, β: recovered amount of mechanical property, and T0: recovering time constant. Curves expressed by the equation (1) agree well with a recovering curve of mechanical property. It is also confirmed that the values expressing the recovery properties, α, β and T0 well represent the recovering state of the fatigue of mechanical properties of fabrics. It would be possible, in future, to distinguish quantitatively the difference of recovering properties caused by fiber composition (wool, polyester, wool/polyester, etc.) and fabric construction (Ponti-de-Roma, Interlock, etc.) by the parameters α, β and T0. The precision of the prediction of the fatigue could be enhanced.