Wuhan Handern Fast Food Packaging

DATE:2020/6/15 8:46:19 / READ: / SOURCE:This station

Wuhan Handern Fast Food Packaging
     The term fast food is more appropriate here with convenience foods, which include: instant noodles, scones, crispy popcorn, candy, gums, nuts, snack cakes and pies. Hollow board style, into a package of food package. www.handern.com Hollow board equipment
    Finished foods include potato chips, corn flakes, popcorn, nuts, pretzels and other roasted goods. The flexible packaging accounts for 75% of the packaging. The general requirements are as follows: first, there must be a good printing surface; second, in some cases, it must be transparent, but some are not required; third, The packaging must have good grease resistance; fourth, the packaging should be large in order to fully bear the weight of the packaging: fifth, some fast foods have sharp corners, for this reason, they must have good needle resistance; sixth, The heat seals at the top, bottom, and back seams must be reliable, waterproof, and oil-resistant, have good mechanical strength, are easy to wash, and the packaging can be adapted to the production of high-speed automatic forming-filling-sealing machines, which require low-temperature heat sealing during the heat sealing process , Will not wrinkle or bend due to heat. Even if the pressure in the bag slightly exceeds the external pressure, the heat seal should not leak, and the seal is reliable. 1. Make sure that the food in the bag will not break or shatter during transportation. Seventh, the seal should be re-closable. This can use a fault or other equipment, but this will increase the cost. Eighth, for a regional The oxygen barrier is not important in the production and sales of packaging, but the oxygen barrier is very important for long-distance sales. Aluminum foil or metalized PET or BON can be used. Ninth, the cost of packaging is 20% of the total product cost, for this market, the pressure to reduce packaging costs is very large. Tenth, the size of fast food packaging varies greatly, which affects the wall thickness of the packaging material and heat sealing grease.www. .handern.com hollow board equipment
      The original salt food packaging is cardboard, paraffin coated cellophane bags, which mainly have good grease resistance. In the 1950s, PVDC-coated cellophane appeared with good transparency, moisture resistance, and rapid heat-sealability. At present, these materials have been replaced by plastics, mainly BOPP. The reason for the replacement is low cost, because the packaging cost of BOPP is only 60% of the cost of cellophane packaging, and cellophane is prone to wrinkle and embrittlement at low temperatures. PVDC coated OPP film is currently the main material for salty food packaging. When the barrier property is very important in packaging, the co-extrusion-composite package material replaces all the above-mentioned package materials. The reasons are: first, co-extrusion must be printed on the surface, the vast majority in history The oil is most likely to be scratched when it rubs against other surfaces during the transportation process. The fast food packaging and printing are very gorgeous, so the above problems are prone to occur. The solution is to laminate and print the pattern in the middle of the film. Second, cellophane, aluminum foil, and metalized film cannot be coextruded, but they are still salt food The main packaging materials. To this end, the following six structures are currently used: No. www.handern.com Hollow board equipment
One structure is OP/fine junction/HDPE/heat seal layer. The heat seal layer is an ionic film, EVA or a blend of the above two resins. Ionic films cost more than EVA. But the heat sealability is better and the grease resistance is better. OPP provides reverse printing, transparency and strength. The adhesive is polyurethane glue or water-soluble acrylate glue. The HDPE here is colored, such as white or chocolate color, for this reason, this package has no transparency. The second structure is OPP/Binder.www.handern.com Hollow board equipment
      Paper/PVDC structure, PVDC is used as heat sealing resin and moisture-proof layer, cellophane has good toughness, transparency and resistance to tortuosity, OPP layer can be reverse printed. The third structure is co-extrusion of P+3% PE copolymer or co-extruded PP-PE-polybutene terpolymer and PVDC inner seal layer on the OPP layer. The inner seal layer can also be acrylic polymer , Ethylene propylene copolymer or ionic resin The fourth structure is: OPP/binder or extruded PE/metallized OPP/heat seal layer, where the heat seal layer is ethylene propylene copolymer or ethylene-propylene-butene three Yuan copolymer. The fifth structure is the simplest and is widely used in Europe for food packaging. www.handern.com Hollow board equipment

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