1. Security sealing bag thickness and thickness uniformity of the primary depends on composite vacuum packing bag former monolayer film thickness and uniformity, that is to say, manipulation of the good quality of vacuum bags the thickness of single layer film thickness is obtained a qualified food quality conditions; The vacuum bag thickness in the market is 16 silk, 20 silk, 24 silk, 32 silk, etc.
2. vacuum food packaging film barrier property is closely related to the thickness of the vacuum packaging film (usually is proportional to the thickness of contact), evenness good vacuum bag film uniformity can be achieved in secure barrier property.
3. The thickness uniformity of the vacuum food packaging film directly affects the mechanical stretching function of the film. The vacuum packaging film with good thickness uniformity can achieve better printing overprinter precision and composite quality.
4. The vacuum bag film of the same inner material, with a high thickness, begins to heat seal with a high temperature, and vice versa. In other words, the composite vacuum bag film with uniform thickness can obtain uniform sealing quality and prevent some bad heat sealing.
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