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What are the reasons for the brittle and fragile sealing of bag-making machines?
Release time: 2025-04-21 16:57:43.719
Reasons for brittle and broken seals on bagging machines: (1) Excessive heat sealing temperature; (2) Excessive pressure; (3) Excessive heat sealing time;
Reasons for brittle and broken seals on bagging machines:
(1) Heat sealing temperature is too high;
(2) Excessive pressure;
(3) Heat sealing time is too long;
(4) The edge of the upper sealing device of the bagging machine is too sharp, or the polytetrafluoroethylene coating is damaged;
(5) The silicone rubber on the bottom seal of the bagging machine is too hard;
(6) During the compounding and curing process, part of the adhesive penetrates into the film. Due to the penetration of the adhesive, the toughness (impact resistance) of the substrate decreases, and the brittleness increases;
(7) After cooling and placement, the heat seal strength of the plastic composite packaging bag increases, and there is also a tendency to become brittle.
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Countermeasures:
(1) Select appropriate processing temperature, pressure, and heat sealing time according to the heat sealing characteristics of the inner sealing layer material;
(2) Improve the surface condition of the upper heat sealing knife of the bagging machine to make the surface of the sealer flat;
(3) Ensure the polytetrafluoroethylene cloth is well-covered;
(4) Select silicone rubber pads with appropriate hardness
Related news
The adhesive layer of the bag-making machine affects the porosity of the material!
The non-woven fabric three-dimensional bag making machine works quickly, the sealed edges do not crack, do not damage the edges of the fabric, and there is no burr or curling phenomenon. At the same time, ultrasonic bonding effectively avoids the fiber degradation caused by heat bonding, the adhesive layer of the bag making machine affects the porosity of the material, and causes delamination after receiving the impact of liquid. The ultrasonic bonding equipment mainly consists of an ultrasonic generator and a roller. The main components of the ultrasonic generator are a horn, a power supply and a transformer.
Basic Principles of Bag Making Machines
A bag-making machine is a multi-machine linkage, multi-station automated equipment. It can produce various shapes of packaging bags through longitudinal and transverse sealing technologies. The working principle of the bag-making machine is: the roll film that has been processed through printing, lamination, slitting, and cutting processes is heated, sealed, cut, and rewound into bags under the action of a bag-shaped mold.
How many types of bag-making machines are there?
Equipment specifically designed for manufacturing paper bags, suitable for packaging needs in the food, pharmaceutical, and cosmetic industries. For example, paper bag machine brands such as Nanjiang, Shenzhien, and Yasen all offer high-performance paper bag making equipment.
Development Trends and Applications of Bag Making Machine Technology
A bag-making machine is a machine used to create various types and sizes of bags, including plastic bags, paper bags, and non-woven fabric bags. Bag-making machine technology has continuously developed and improved over the past few decades. Early bag-making machines mainly used mechanical drive methods, resulting in low production efficiency and poor bag quality. Later, the development of electronic technology brought new opportunities, and bag-making machine technology was also improved.
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