Food plastic film and preparation method thereof

The invention relates to the field of plastic films, and particularly discloses a food plastic film and a preparation method thereof. The food plastic film comprises a heat sealing layer, a first core layer, a second core layer and a corona layer, the heat sealing layer comprises MLLDPE, LDPE or LLD...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DAI XIJUN, MA XIDONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to the field of plastic films, and particularly discloses a food plastic film and a preparation method thereof. The food plastic film comprises a heat sealing layer, a first core layer, a second core layer and a corona layer, the heat sealing layer comprises MLLDPE, LDPE or LLDPE and a processing aid; the first core layer comprises LLDPE (Linear Low Density Polyethylene), LDPE (Low Density Polyethylene The second core layer is prepared from LLDPE (Linear Low Density Polyethylene), LDPE (Low Density Polyethylene), the corona layer comprises LLDPE (linear low density polyethylene), LDPE (low density polyethylene) and a corona aid; the preparation method comprises the following steps: uniformly mixing and stirring all raw materials in the heat-sealing layer, the first core layer, the second core layer and the corona layer, and carrying out blending extrusion to obtain a finished product. The prepared plastic film has the advantages of formaldehyde barrier, moisture resistance and high stren