1. Influence of the environment on the plastic seal: The preheating and stabilization time of the laminator is affected by the ambient temperature. When the ambient temperature is high, the plastic sealing temperature can be quickly balanced. When the stable ambient temperature is low, the heat dissipation is fast, and the plastic sealing temperature takes a long time to reach equilibrium stability. . Never start the temperature display after the start of the plastic temperature plastic seal, because at this time the plastic sealer roller is not yet stable and stable, just the local temperature near the temperature measurement point to the plastic seal temperature. In general, the warm-up stabilization time should not be shorter than 20 minutes. Laminator working environment design index is a 5 ~ 40 °C, relative humidity is not more than 80%, non-corrosive gas. Therefore, the laminator can work normally under normal season and weather conditions without affecting the plastic sealing effect.
2. The effect of the hardness of the rubber roller on the plastic seal The hardness of the plastic roller of the sealing machine is 50 degrees on Shore. If the rubber roller becomes hard or cracked due to aging or other reasons, it will affect the quality of the plastic seal, and the plasticized documents will not be plastically sealed. Replace the rubber roller in time.
3, plastic seal quality inspection After the plastic seal should be transparent, flat, plastic envelope and card core should be firmly sealed as one. There is no "saturation" in the sandwich, no "blurred white impression", no oil, dirt and other undesirable phenomena. Common abnormalities and reasons for judgment, such as local unsealed, should be considered low plastic seal temperature, such as plastic wrinkles after plastic deformation wrinkles, should be considered plastic seal temperature is too high or too much pressure if there is a sandwich Bubbles or blurred white imprints should be considered as unsuitable plastic sealing temperatures. If adhesive spillage occurs during plastic encapsulation, the plastic sealing temperature should be considered too high or the pressure too high.
The film has excellent heat sealing performance and excellent transparency, is one of the main packaging composite base materials, used in the production of high-temperature boiling film, vacuum aluminum coating film, the market is very optimistic.Moreover, with the development of domestic production equipment, some of the technical indicators have reached the international advanced level.As a result, the threshold to enter the film production is lower and lower.Because of this, some enterprises rush to import the flow of film production line in order to reach the designated position, the higher the level, the better, while leaving the market demand and the return on investment aside, which will cause huge waste of resources.
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