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Packaging container

A packaging container and light-blocking layer technology, which is applied in the field of packaging products, can solve the problems of large changes in acidity, taste, and viscosity of dairy products, high cost of color masterbatch and oxygen absorbing agent, and uneven distribution of bottle materials. Achieve the effects of improving utilization rate and distribution uniformity, reducing oxygen permeability and reducing impact

Pending Publication Date: 2021-12-03
INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when packaging dairy products or other oxygen-sensitive products in existing PET containers, taking dairy products as an example, due to the requirement of a long shelf life, it is difficult for ordinary PET containers to store dairy products during the shelf life due to their high oxygen permeability. Products provide good protection, resulting in large changes in acidity, taste, viscosity, and even odor of dairy products during storage
For this reason, the previous inventors found that adding a large amount of additives to PET raw materials, including white masterbatches, purple masterbatches and oxygen absorbers, can reduce the oxygen permeability of packaging bottles to a certain extent. Excessive amount of oxygen agent not only makes the cost too high, but also easily leads to poor molding effect of the final bottle, uneven distribution of bottle materials, and increased difficulty in the bottle blowing process

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0040] This embodiment provides a packaging bottle, the bottle wall has a two-layer structure, arranged according to layer A / layer B, wherein layer A is the light-blocking layer of the outer layer, and layer B is the oxygen-absorbing layer of the inner layer. The raw material formula of packing bottle is as follows:

[0041] Layer A is made of raw materials with the following weight: polyethylene terephthalate 15.456, blue-gray masterbatch Lactra SX 1.344g.

[0042] Layer B is made of the following raw materials: polyethylene terephthalate 3.818g, black color oil 0.004g, oxygen absorber amosorb 4020E 0.378g.

Embodiment 2

[0044] This embodiment provides a packaging bottle, the packaging bottle is produced by a double-channel injection molding process, the bottle wall is a two-layer structure, arranged according to the A layer / B layer, wherein the A layer is the light blocking layer of the outer layer, and the B layer is the outer light blocking layer. Inner oxygen absorbing layer. The raw material formula of packing bottle is as follows:

[0045] Layer A is made of the following raw materials: polyethylene terephthalate 13.524g, blue-gray masterbatch Lactra SX 1.176g.

[0046] Layer B is made of the following raw materials: polyethylene terephthalate 5.337g, black color oil 0.018g, oxygen absorber amosorb 4020E 0.945g.

Embodiment 3

[0048] This embodiment provides a packaging bottle, the packaging bottle is produced by a double-channel injection molding process, the bottle wall is a two-layer structure, arranged according to the A layer / B layer, wherein the A layer is the light blocking layer of the outer layer, and the B layer is the outer light blocking layer. Inner oxygen absorbing layer. The raw material formula of packing bottle is as follows:

[0049] Layer A is made of the following raw materials: polyethylene terephthalate 17.388g, blue-gray masterbatch Lactra SX 1.512g.

[0050] Layer B is made of the following raw materials by weight: polyethylene terephthalate 1.89g, black color oil 0.01g, oxygen absorber amosorb 4020E 0.105g.

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Abstract

The invention relates to a packaging product, in particular to a packaging container. The container wall of the packaging container comprises a light blocking layer and an oxygen absorption layer, the light blocking layer is prepared from polyethylene glycol terephthalate and a light blocking agent, and the oxygen absorption layer is prepared from the polyethylene glycol terephthalate and an oxygen absorption agent. According to the packaging container, the light blocking agent and the oxygen absorption agent are arranged in two layers, so that the using amount of the light blocking agent and the oxygen absorption agent can be remarkably reduced, the utilization rate and the distribution uniformity of the light blocking agent and the oxygen absorption agent can be improved, the purposes that the blocking property of the container wall to illumination and oxygen can be greatly improved while the using amount of an additive is reduce, and the oxygen permeation rate of the container is obviously reduced are achieved.

Description

technical field [0001] The invention relates to a packaging product, in particular to a packaging container. Background technique [0002] Polyethylene terephthalate (PET) container is a plastic packaging container made of PET as raw material through injection molding and blowing. PET material has the advantages of light material, strong structure and excellent chemical properties, so it is widely used in food The industry makes packaging containers, especially for beverage products such as carbonated drinks, water, tea, juices and energy drinks. [0003] However, when packaging dairy products or other oxygen-sensitive products in existing PET containers, taking dairy products as an example, due to the requirement of a long shelf life, it is difficult for ordinary PET containers to store dairy products during the shelf life due to their high oxygen permeability. Products provide good protection, resulting in large changes in acidity, taste, viscosity, and even odor of dairy...

Claims

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Application Information

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IPC IPC(8): B65D81/26B65D81/30B65D85/80B32B1/02B32B27/06B32B27/18B32B27/20B32B3/00
CPCB65D81/266B65D81/30B65D85/80B32B27/08B32B27/18B32B27/20B32B3/00B32B2307/40B32B2439/00B32B2439/60B32B2439/62B32B2439/02B32B2439/40B32B1/00
Inventor 苏日娜杨畅侯英梁王震业李洪亮
Owner INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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