In cotton fabric sizing the domestic material is normally starch finds itself more frequent uses than the PVA size does. In this study we have examined the effects of ironing temperature and washing temperature on the removal of sized PVA by washing and have got following temperature on the removal of sized PVA by washing and have got following results: 1. the removal of PVA is related approximately to the reciprodal of the ironing temperature. 2. the higher the ironing temperature, the lower is the removal of PVA; and if the ironing temperature is higher than $140^{circ}C$ the removal of PVA decreases abruptly even if the washing temperature were still high. 3. The most appropriate washing temperature should be at least $75^{circ}C$when the ironing is carried out at 10$0^{circ}C$ the same holds for $80^{circ}C$to $120^{circ}C$and $90^{circ}C$to $120^{circ}C$, respectively.