SELECT THE PROPER HEATSEAL BAND FOR THE JOB
Selection of the best heatseal band for any given application involves several considerations. The band must be of the correct width and configuration to produce the desired seal or cut/seal. In addition, the band must be thick enough (have sufficient mass) to store the heat required for delivery to the material when being sealed. If needed, heat will be continually delivered to the material for the duration of the heating cycle. When impulse sealing it is desirable to terminate the heating cycle as soon as possible. And remember, the seal is not finally made until the seal area is cool enough to be dimensionally stabile. If the heatseal band is too thick or heat energy delivered is too great, the cooling time will be prolonged thus prolonging the total cycle and limiting production rate.
Ideal heatseal band selection is a function of many variables including material composition, material thickness, heat absorption of the jaw and the nature of the cover strip used over the