Method for measuring heat sealability of glass paper
A cellophane and performance technology, applied in measuring devices, flow characteristics, instruments, etc., can solve problems such as irregular operation and inaccurate values, and achieve the effects of simple operation, simple and easy-to-obtain equipment, and low measurement costs.
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Embodiment 1
[0014] Embodiment 1, first hang the clip at the upper end of the spring scale on the experimental shelf, fix the small iron clip on the lower end of the spring scale, prepare the heat seal strength tester at the same time, then measure the heat sealability of the cellophane according to the following steps:
[0015] Cut off the cellophane to be tested whose length is slightly longer than 300mm, remove the edge of the paper, and then cut 6 strip-shaped samples with a width of 37mm and a length of 300mm along the longitudinal direction of the cellophane to be tested according to the rule of uniform distribution; place each sample in the middle The part is folded in half horizontally, and one of the folded samples is placed above the heat seal strength measurement, and thermally bonded at a position 40mm parallel to the middle crease, the bonding time is 3 seconds, and the bonding temperature is 140±5 ℃, the bonding pressure is 200-300 kPa, and then let it cool naturally; clamp on...
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