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Packaging material used for packaging foods

A technology for packaging materials and liquid food, which is applied in packaging, wrapping paper, transportation and packaging, etc. It can solve the unavoidable barrier layer cracks and other problems, and achieve the effects of good packaging molding ease, avoiding stress damage, and preventing cracks

Active Publication Date: 2012-01-18
靖江市华信科技创业园有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method still cannot avoid the cracks caused by the damage of the barrier layer by the indentation stress

Method used

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  • Packaging material used for packaging foods
  • Packaging material used for packaging foods

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Embodiment Construction

[0021] A packaging material for packaging liquid food, the packaging material comprising an outermost layer of thermoplastic material, a support layer, an intermediate layer of thermoplastic material, a barrier layer, an adhesive layer and an innermost layer of thermoplastic material laminated sequentially, facing the thermoplastic on the support layer Identification information is printed on one side of the outermost layer. In the present invention, it is recommended to use a paper matrix layer for the support layer and aluminum foil for the barrier layer.

[0022] Such as figure 1 As shown, on the side of the supporting layer facing the outermost layer of thermoplastic material, that is, the side A, there are longitudinal crease lines 11 , transverse crease lines 12 and oblique crease lines 13 pressed. These three kinds of crease lines are suppressed by special creasing rollers. The creasing rollers can be the ones with raised creasing strips and concave creasing grooves on ...

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Abstract

The invention relates to a packaging material used for packaging foods, in particular a packaging material used for packaging liquid foods. The packaging material used for packaging the liquid foods provided by the invention is provided with a longitudinal crease line, a transverse crease line and a slant crease line and comprises a thermoplastic material outermost layer, a support layer, a thermoplastic material intermediate layer, a blocking layer, an adhesive layer and a thermoplastic material innermost layer which are laminated in sequence; one surface of the support layer arranged towards the thermoplastic material outermost layer is printed with an identification mark; and the longitudinal crease line, the transverse crease line and the slant crease line are formed on the surface ofthe support layer arranged towards the thermoplastic material outermost layer. According to the packaging material disclosed by the invention, the firmer crease lines are provided; furthermore, the excellent packaging forming easiness is provided; simultaneously, the stress damage to the blocking layer in crease line pressing process and continuous packaging forming folding process is avoided; and therefore, cracks are prevented.

Description

technical field [0001] The invention relates to a packaging material for packaging food, especially a packaging material for packaging liquid food. Background technique [0002] At present, for fresh milk, yogurt, fruit juice, wine, tomato sauce and other pourable liquid foods, square and triangular packages are generally used. There are many kinds of materials for this package, and composite materials are generally the most commonly used. Common composite materials include at least the following layers: outermost layer of thermoplastic material, support layer, middle layer of thermoplastic material, barrier layer, adhesive layer and innermost layer of thermoplastic material, printed on the side of the support layer facing the outermost layer of thermoplastic material identifying information. [0003] The outermost layer of thermoplastic material is used to provide effective protection for the liquid food in the packaging, preventing moisture and liquid from intruding into ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D65/12B65D65/22B65D85/72
Inventor 吴壮
Owner 靖江市华信科技创业园有限公司
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