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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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