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POF shrinkage film applicable to cold fresh chicken packaging

A technology of shrink film and cold fresh chicken, applied in the direction of synthetic resin layered products, layered products, chemical instruments and methods, etc., to achieve the effects of high-efficiency anti-pollution heat-sealing performance, excellent anti-fog performance, and excellent low-temperature heat-sealing performance

Inactive Publication Date: 2019-01-25
SUNRISE PACKAGING MATERIAL JIANGYIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no report about a kind of POF shrink film suitable for cold and fresh chicken packaging

Method used

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  • POF shrinkage film applicable to cold fresh chicken packaging
  • POF shrinkage film applicable to cold fresh chicken packaging
  • POF shrinkage film applicable to cold fresh chicken packaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4 and comparative example 1

[0043] The shrink film structures of Examples 1-4 and Comparative Example 1 are shown in Table 1.

[0044] The production process includes the following steps:

[0045] S1: Put the raw materials in an extruder to co-extrude the film tube, and cool the film tube; the water temperature of the water cooling treatment in S1 is 5-15°C.

[0046] S2: Heat the cooled film tube to the preheating temperature, stretch the film tube, and then use compressed air for secondary inflation; the preheating temperature in S2 is 50-90°C; the inflation ratio of the secondary inflation is 3.5-6.5, the traction ratio is 3-6.5.

[0047] S3: Pull the film obtained by secondary inflation to the shaping mechanism, heat it again to the shaping temperature to shape the film, and finish the multi-layer co-extruded shrink film. The setting temperature in S3 is 30-70°C.

[0048] The shrink film structure of table 1 embodiment 1-4 and comparative example 1

[0049]

Embodiment 5

[0051] Performance test comparison:

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Abstract

The invention relates to the field of packaging films, in particular to a POF shrinkage film applicable to cold fresh chicken packaging. The film is a five-layer co-extrusion film; the total thicknessis 10 to 100 microns; the film comprises an outer layer, a sub outer layer, a middle core layer, a sub inner layer and an inner layer hot sealing layer, wherein the middle core layer is an LLDPE layer; the outer layer and the sub outer layer is an LLDPE layer or a blending layer of LLDPE and LDPE; the sub inner layer is selected from one of the LLDPE layer, a ULDPE layer and the blending layer ofLLDPE and LDPE; the inner layer hot sealing layer is selected from one of the LLDPE layer, the ULDPE layer, a POP layer, an SURLYN layer and the blending layer of LLDPE and LDPE. The POF shrinkage film has excellent low-temperature hot sealing performance and efficient anti-pollution hot sealing performance.

Description

technical field [0001] The invention relates to the technical field of packaging films, in particular to a POF shrink film suitable for packaging cold and fresh chickens. Background technique [0002] Conventional fresh chicken is sold through live poultry slaughter or freezing, and live poultry slaughter is prone to spoilage, which limits its shelf life. At the same time, the outbreak of animal influenza H7N9 in recent years has caused significant changes in the chicken consumption structure in my country, and the live poultry market has been questioned. [0003] Frozen sale of chicken causes the loss of fat, protein and other nutrients and polyunsaturated fatty acids of chicken, and affects the taste of chicken. At the same time, live poultry slaughter and frozen chicken are prone to breed bacteria in the process. [0004] Laboratory tests have shown that after 5-8 hours, the content of fat, protein, and nucleotides that make the meat more flavorful after the chicken is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/32
CPCB32B27/08B32B27/32
Inventor 宋建新
Owner SUNRISE PACKAGING MATERIAL JIANGYIN CO LTD
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