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Modified atmosphere packaging film with primary-secondary package structure and manufacturing method of modified atmosphere packaging film

A technology of modified atmosphere packaging and parent-child packaging, applied in packaging, wrapping paper, transportation and packaging, etc., can solve the problems of browning of meat surface, endangering human health, corruption, etc. The effect of loss reduction

Pending Publication Date: 2022-06-28
干将新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the production and packaging process of chilled fresh meat, the existing polyethylene modified atmosphere packaging film cannot achieve good performance in terms of airtightness and air permeability. Preservation will affect the fat oxidation reaction of chilled fresh meat, which will lead to rancidity of chilled fresh meat, and then emit a rotten astringent taste and odor. It will also cause browning on the surface of the meat while destroying the quality and nutritional value of the meat. appear, destroy the original flavor of chilled meat, shorten the shelf life of chilled meat, and endanger human health

Method used

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  • Modified atmosphere packaging film with primary-secondary package structure and manufacturing method of modified atmosphere packaging film

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A sub-package structure modified atmosphere packaging film, its raw materials include: polyethylene 40kg, breathable masterbatch 10kg, antioxidant 10101kg, antistatic agent SN 0.1kg, phthalate 1kg, light stabilizer 1191kg, N, N'-ethylenebisstearamide 1kg.

[0031] The above-mentioned breathable master batch is prepared by the following concrete steps: adding 5kg polyethylene, 5kg ethylene-vinyl acetate copolymer, and 15kg porous carbon fiber into a twin-screw extruder, melt extrusion at 160° C., dicing, and drying to obtain breathable master batch. .

[0032] Above-mentioned porous carbon fiber adopts following concrete steps to produce: 10kg length is the bamboo powder of 40-60mm, 5kg novolak resin, 1kg ammonium bicarbonate, 1kg oxalic acid, 1kg polyethylene glycol, 0.1kg siloxane are added in mixer, 40 Stir at a speed of 1000 r / min for 5 min, add 1 kg of hexamethylenetetramine under stirring and continue to stir for 1 min, solidify at 90 ° C, and then carbonize under...

Embodiment 2

[0035] A modified atmosphere packaging film with a sub-package structure, its raw materials include: polyethylene 100kg, breathable masterbatch 30kg, antioxidant DLTP 2kg, antistatic agent SN 1kg, phthalate 2kg, light stabilizer 1192kg, N, N'-ethylenebisstearamide 2kg.

[0036] The above-mentioned breathable master batch is prepared by the following concrete steps: adding 15kg polyethylene, 15kg ethylene-vinyl acetate copolymer and 30kg porous carbon fiber to a twin-screw extruder, melt extruding at 180°C, dicing, and drying to obtain breathable master batch .

[0037] Above-mentioned porous carbon fiber adopts following concrete steps to produce: 20kg length is the bamboo powder of 40-60mm, 10kg novolak resin, 3kg ammonium bicarbonate, 2kg oxalic acid, 3kg polyethylene glycol, 1kg siloxane are added in mixer, 50 ℃ Stir at a speed of 2000 r / min for 10 min, add 2 kg of hexamethylenetetramine under stirring and continue to stir for 2 min, solidify at 100 °C, and then carbonize ...

Embodiment 3

[0040] A modified atmosphere packaging film with a sub-package structure, the raw materials include: polyethylene 60kg, breathable masterbatch 25kg, antioxidant 2641.3kg, antistatic agent SN 0.8kg, phthalate 1.3kg, light stabilizer 1191.8kg , N,N'-ethylene bis-stearamide 1.3kg.

[0041] The above-mentioned breathable master batch is prepared by the following specific steps: adding 12 kg of polyethylene, 8 kg of ethylene-vinyl acetate copolymer, and 26 kg of porous carbon fibers into a twin-screw extruder, melt extrusion at 165 ° C, cut into pellets, and dry to obtain breathable master batches .

[0042] Above-mentioned porous carbon fiber adopts following concrete steps to produce: 17kg length is that bamboo powder of 40-60mm, 8kg novolac resin, 1.5kg ammonium bicarbonate, 1.7kg oxalic acid, 1.5kg polyethylene glycol, 0.8kg siloxane are added into mixer 43 °C at a speed of 1800 r / min for 6 min, add 1.7 kg of hexamethylenetetramine under stirring and continue to stir for 1.2 min...

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Abstract

The invention discloses a modified atmosphere packaging film with a primary-secondary package structure. The modified atmosphere packaging film is prepared from the following raw materials: polyethylene, breathable master batches, an antioxidant, an antistatic agent, a plasticizer, a light stabilizer and a lubricant in a mass ratio of (40-100): (10-30): (1-2): (0.1-1): (1-2): (1-2): (1-2); the breathable master batch is obtained by blending, melting and extruding polyethylene, an ethylene-vinyl acetate copolymer and porous carbon fibers; and the porous carbon fiber is a three-dimensional microporous carbon structure distributed on carbonized bamboo powder fiber. The invention discloses a manufacturing method of the modified atmosphere packaging film with the child-mother package structure. The manufacturing method comprises the following steps: uniformly mixing the polyethylene, the breathable master batch, the antioxidant, the antistatic agent, the plasticizer, the light stabilizer and the lubricant, heating and blending at 180-200 DEG C, extruding, and blow-molding to obtain the modified atmosphere packaging film with the child-mother package structure.

Description

technical field [0001] The invention relates to the technical field of modified atmosphere packaging films, in particular to a method for manufacturing a modified atmosphere packaging film with a sub-package structure. Background technique [0002] There are three common meat processing methods in the Chinese market: frozen meat, hot fresh meat, and cold fresh meat. At present, the main fresh-keeping method of meat is freezing. Although frozen meat is very effective for prolonging the storage period of meat, when frozen meat is stored at -18 °C, it is easy to cause the loss of gravy and nutrients during thawing, and the freshness and tenderness decrease. Compared with frozen meat and hot fresh meat, cold fresh meat has many advantages: it is safe and hygienic, and it is convenient to use. However, the quality of chilled meat will be damaged by spontaneous changes or external factors during the storage period. [0003] Deoxidizer and moisturizing pack are relatively mature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K7/06C08K7/00C08K5/134C08K5/12C08J5/18B65D65/38B65D81/24
CPCC08J5/18B65D65/38B65D81/24C08J2323/06C08J2423/08C08K7/06C08K7/00C08K5/1345C08K5/12
Inventor 吴方平吴坤坤周晶
Owner 干将新材料有限公司