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Bag making machine sealing crisp and brittle how to do |
Reasons: (1) heat sealing temperature is too high; (2) excessive pressure; (3) The sealing time is too long; (4) bag-making machine the edge of the upper sealing device is too sharp or damage to the Teflon-coated; (5) Making the bottom of the silicone rubber sealing excellent; (6) in the composite and the aging process, part of the adhesive into thin film. Substrate due to the penetration of adhesive impact toughness (impact resistance) decreased, increased brittleness; (7) cooling and placed in plastic 复合包装袋, the heat seal strength has increased, but also tend to brittle. Countermeasures: (1) According to the material within the sealing layer sealing properties, select the appropriate processing temperature, pressure and heat sealing time; (2) to improve the upper sealing bag machine tool surface condition, so that sealing the surface smooth; (3) PTFE coated cloth in good condition; (4) select the appropriate hardness of the silicone rubber pad |
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