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How food bags is to ensure food safety
2016-08-21
First,
the packaging film to meet the national standards, not shoddy. Food
companies must first understand their own food bags what material;
followed by packaging companies to find a regular order processing. As
some food companies who lack professional knowledge of packaging
materials and the simple pursuit of low-cost, the situation appears to
be fool from time to time. Composite bags, for example, many foods for
vacuum packaging, such bags shall have at least one layer of material
nylon package, but the market some of the jerry package bag, no nylon
material, but the use of PET plastic (PET) because the nylon material
twice as expensive than PET. The result is crisp bag is not soft,
puncture resistance is weak, resulting in food packaging leak, broken
bags, not worth the candle, economic losses and the negative impact of
low-cost shopping bags far higher than the cost savings. Also new
packaging materials such as seven co-extruded bags, should be a minimum
of two layers of nylon, but some use a layer, and nylon content low, and
some also use the smuggling of garbage material, more problems. Such
bags poor barrier properties, easy to break, intolerant of high
temperatures. Currently on the market there are circumstances when in
aluminum bags foil bags to sell food companies, but also the need for
timely identification and prevent fraud.
Second, the food bags to meet food safety and quality requirements.
1, the food industry should claim bags packaging film manufacturers use
in line with national standards. The composite material of the bag to
use environment-friendly, do not use benzene and other harmful
substances in dry composite plastic packaging, because the solvent
easily penetrate contaminated food. 2, food bags to be smooth. No
scratches, burns, bubbles and wrinkles, no virtual closure. Flat is not
only aesthetic requirements, but also in respect of the quality of food,
if not flat seal bags for high-temperature cooking or freezing of food
packaging, it is easy to crack. 3, printed to use green materials. QS
standard requirements for food packaging may not be detected benzene
solvent harmful to human health, but because of benzene solvent benzene
than environmentally friendly, non-ketone solvent prices about 30%
lower, and brightness, color fastness is better, so many bags printing,
also use this type of material, contaminated food issues often arise. 4,
the production of food packaging bags standard production environment
to avoid contamination during bag food bags.
Third, food packaging tailored for the food business. Bags of food
production enterprises according to enterprise product packaging needs,
select the appropriate packaging materials and processing technology,
customers avoid unnecessary costs. In grains bags, for example, now many
manufacturers require the use of grains in appearance, freshness good
vacuum plastic packaging. Some companies choose a bag, think low cost.
But in fact the quality of performance for cereals packaging bags
multilayer coextrusion material production, cost and complex the same.
Because the thickness of the composite material to reach 100 microns,
and the thickness of the multilayer co-extruded material reaches 90
microns, its puncture resistance, softness, freshness to meet quality
requirements of, and because the material is a hot melt process, do not
use sticky Mixture, food safety is guaranteed.
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