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A method of producing laminated packaging material

A technology for packaging materials and production layers, applied in the field of laminated packaging materials, can solve problems such as unsatisfactory crease line effect, unavoidable barrier layer cracks, etc., to achieve good packaging forming ease, avoid stress damage, and reduce risks. Effect

Active Publication Date: 2011-12-28
盐城市亿德塑料包装有限公司
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  • Summary
  • Abstract
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  • 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, and the effect of the crease line being suppressed is still not ideal

Method used

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  • A method of producing laminated packaging material
  • A method of producing laminated packaging material

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Embodiment Construction

[0021] A method for producing a laminated packaging material, specifically comprising the steps of:

[0022] a. Printing a printing layer for identifying the packaging on one side of the support layer;

[0023] b. Pressing the longitudinal crease lines, transverse crease lines and oblique crease lines on the side of the above-mentioned supporting layer with the printing layer;

[0024] c. Laminating the outermost layer of thermoplastic material on the printing layer;

[0025] d. Laminating an intermediate layer of thermoplastic material, a barrier layer, an adhesive layer and an innermost layer of thermoplastic material sequentially on the side of the support layer facing away from the printing layer.

[0026] For the above step c and step d, they can be interchanged in the production process, and the beneficial technical effect of the present invention will not be affected after the interchange.

[0027] In the present invention, it is recommended to use a paper base layer ...

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Abstract

The invention relates to a method for producing a lamination packing material, and in particular relates to a method for producing a lamination packing material for packing liquid foods. The packing material in the invention comprises an outmost thermoplastic material layer, a support layer, a middle thermoplastic material layer, a barrier layer, an adhesive layer and an innermost thermoplastic material layer from outside to inside. The method comprises the following steps: a. printing a printing layer used for identifying a packed object on one surface of the support layer; b. pressing a longitudinal crease line, a lateral crease line and a slanting crease line on one surface provided with the printing layer, of the printing layer; c. laminating the outmost thermoplastic material layer on the printing layer; and d. successively laminating the middle thermoplastic material layer, the barrier layer, the adhesive layer and the innermost thermoplastic material layer on one surface opposite to the printing layer, of the support layer. With the method, the crease lines with a better effect are easy to press under the condition of a smaller use pressure, and the risk of a crack generated because the support layer, and the thermoplastic material layers, especially the barrier layer are damaged by the stress of the indentation can be greatly lowered.

Description

technical field [0001] The invention relates to a method for producing a laminated packaging material, in particular to a method for producing a laminated 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 Used to identify the printed layer of the packaging. [0003] The outermost layer of thermoplastic material is used to provide effective protection for the ...

Claims

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Application Information

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IPC IPC(8): B32B37/00B32B37/30B32B38/14B65D65/40
Inventor 吴壮
Owner 盐城市亿德塑料包装有限公司
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