Anti-hydrogen packaging bag, manufacturing method thereof and combined package

A packaging bag and hydrogen blocking technology, which is applied in the field of packaging materials, can solve the problems of low shelf life and hydrogen permeability rate, and cannot guarantee the taste of hydrogen-containing food at the same time, and achieve the effect of simple preparation method, excellent barrier property, and extended shelf life

Pending Publication Date: 2018-07-13
韩城维康水科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a hydrogen-blocking packaging bag, its preparation method and combined packaging, to solve the problem that the existing food packaging bags cannot simultaneously ensure the taste, flavor, shelf life and hydrogen permeability of hydrogen-containing foods are less than or equal to 2cm 3 / (㎡·24h·0.1MPa) requirements

Method used

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  • Anti-hydrogen packaging bag, manufacturing method thereof and combined package
  • Anti-hydrogen packaging bag, manufacturing method thereof and combined package

Examples

Experimental program
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Effect test

Embodiment 1

[0046] refer to figure 1 As shown, the hydrogen barrier packaging bag of this embodiment includes: a polyethylene terephthalate layer 1 , an aluminum film layer 2 , a nylon layer 3 and a polyethylene layer 4 , which are sequentially combined from outside to inside.

[0047] In the hydrogen barrier packaging bag of this embodiment, the polyethylene terephthalate layer 1 is used as the outermost layer, and the printing effect is better, the aluminum film layer 2 plays the role of blocking hydrogen, and the nylon layer 3 is used for stretch resistance and waterproof , The polyethylene layer 4 has good flexibility and fragrance retention.

[0048] In the hydrogen-blocking packaging bag of the present invention, the sequence of polyethylene terephthalate layer 1, aluminum film layer 2, nylon layer 3 and polyethylene layer 4 is selected from the outside to the inside, ensuring the hydrogen-containing liquid food. Fragrance will not penetrate the polyethylene layer 4, liquid will no...

Embodiment 2

[0070] The method for preparing the hydrogen-barrier packaging bag of this embodiment is used to prepare the hydrogen-barrier packaging bag of Example 1, comprising the following steps:

[0071] Prepare raw materials: prepare polyethylene terephthalate sheet with a thickness of 10-15 microns, prepare an aluminum film sheet with a thickness of 6-10 microns, prepare a nylon sheet with a thickness of 15-20 microns, prepare a thickness 100-120 micron polyethylene sheet;

[0072] Dry lamination: The polyethylene terephthalate sheet and the aluminum film sheet, the aluminum film sheet and the nylon sheet are respectively bonded with an adhesive by a dry lamination method.

[0073] Hot-melt lamination: bonding nylon sheets and polyethylene sheets by hot-melt lamination.

[0074] In the dry compounding step:

[0075] The mass ratio of the solid to water of the adhesive is 3:7, the amount used is 1.5-3.5g / ㎡, the compounding temperature is 70-90°C, the drying wind speed is 30-40m / s, a...

Embodiment 3

[0091] The combined package of this embodiment includes: an outer shell layer and the hydrogen barrier packaging bag of Embodiment 1, wherein the outer shell layer is arranged outside the polyethylene terephthalate layer 1 .

[0092] Specifically, the shell layer and the polyethylene terephthalate layer 1 are not bonded together.

[0093] The hydrogen-blocking packaging bag of Example 1 has a transverse and longitudinal tensile strength greater than 50 MPa, a peel strength greater than 6N / 15mm, and a heat-sealing strength greater than 80N / 15mm. In actual use, when the capacity of the hydrogen-resistant packaging bag is less than 25L, Reliable packaging can be guaranteed without adding an outer shell layer. However, when the capacity of the hydrogen-resistant packaging bag is greater than or equal to 25L, the packaging may be damaged when the hydrogen-resistant packaging bag is impacted by an external force, and reliable packaging cannot be guaranteed. , so it is necessary to s...

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Abstract

The invention relates to the technical field of packaging materials, in particular to an anti-hydrogen packaging bag, a manufacturing method thereof and combined package. The anti-hydrogen packaging bag comprises a polyethylene glycol terephthalate layer, an aluminum film layer, a nylon layer and a polyethylene layer which are arranged from outside to inside. The manufacturing method for the anti-hydrogen packaging bag comprises the following steps of: preparing raw materials, wherein the raw materials are polyethylene glycol terephthalate sheets with thicknesses of 10-15 microns, aluminum film sheets with thicknesses of 6-10 microns, nylon sheets with thicknesses of 15-20 microns, and polyethylene sheets with thicknesses of 100-120 microns; performing dry-type compounding, wherein the polyethylene glycol terephthalate sheets, the aluminum film sheets and the nylon sheets are separately bonded by a bonding agent through a dry-type compounding method; and performing hot-melt compounding, wherein the nylon sheets and the polyethylene sheets are bonded through a hot-melt compounding method. According to the anti-hydrogen packaging bag, the manufacturing method thereof and the combinedpackage disclosed by the invention, mouthfeel, flavor, a quality guarantee period and a hydrogen permeation rate smaller than or equal to 2 cm<3>/(m<2>24h.0.1MPa) of hydrogen-containing food are guaranteed.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a hydrogen barrier packaging bag, its preparation method and combined packaging. Background technique [0002] At present, common packaging methods include paper packaging, glass packaging, metal packaging, plastic hard packaging, composite packaging bags, etc. On the one hand, the average annual growth rate of consumption of composite packaging bags is higher than that of other packaging methods, and its utilization rate is higher than that of glass packaging, metal packaging and plastic hard packaging; on the other hand, the status of composite packaging bags in the food field is gradually increasing, especially As people favor hydrogen-containing foods, the demand for hydrogen-resistant packaging bags has increased significantly. Since the molecular size of hydrogen is one-sixteenth of the molecular size of oxygen, hydrogen-containing foods have higher requirement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D30/08
CPCB65D31/02
Inventor 高民权董达光贾亚峰
Owner 韩城维康水科技有限公司
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