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Inside creasing

A crease line and fold line technology, applied to paper/cardboard containers, flexible coverings, containers, etc., can solve the problem of unsatisfactory auxiliary creases, and achieve easy folding, reduced folding pressure, and less wear and tear Effect

Inactive Publication Date: 2010-09-08
TETRA LAVAL HLDG & FINANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, it has been found that the auxiliary crease disclosed in EP-A1-0 027 668 is generally unsatisfactory in some cases, for example for certain types of laminates, laminate thicknesses or package volumes

Method used

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Examples

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Embodiment Construction

[0037] refer to figure 1 , according to one embodiment, the innovative method is carried out in a crease machine or in a crease unit 2 of a converting machine, where a paper core is printed, provided with crease lines and provided with a barrier material, thereby forming a packaging laminate 4. In the crease unit, the paper passes between two opposing crease rollers, a first roller 6 with protrusions and a second roller 8 with depressions. The protrusions and recesses are aligned so that corresponding protrusions 10 and recesses 12 are formed on the packaging laminate 4, see figure 2 . The creasing rollers 6, 8 are usually made of metal, but it should be understood that they may also be made of other materials as long as they can withstand the stresses from the creasing operation and have the necessary durability.

[0038] According to a first embodiment of the invention, a packaging laminate 4 is provided for forming a packaging container. The packaging laminate 4 compri...

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PUM

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Abstract

A packaging laminate for forming packaging containers has a core of paper or cardboard, and a first side forming the outside of a packaging container and a second side forming the inside of the packaging container. The packaging laminate is provided with crease lines defining folding locations usable during forming of the packaging containers, and each crease line defines a linear protrusion on one side of the laminate and a corresponding linear depression on the opposite side of the laminate. The packaging laminate is characterized in that at least one crease line, which forms a corner edge of the packaging container, has its linear protrusion on the first side of the packaging laminate.

Description

technical field [0001] The present disclosure relates to packaging technology for packaging containers made from folded pliable material such as sheets or rolls in the form of packaging laminates. More specifically, the present disclosure relates to a packaging laminate for the packaging container and a method of producing such a packaging laminate. Background technique [0002] Liquid foods, such as milk and yogurt, and semi-liquid foods, such as soups, are often sold in small volume consumer packaging containers. The packaging container is used to protect food throughout the value chain during transport and handling. In addition to protecting the product, the container can carry information about its contents and also serve as a display interface to promote the product to consumers. [0003] Many different types of consumer packaging containers are known, such as plastic bottles, glass bottles and containers made from paper-based packaging laminates. Cost and environmen...

Claims

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Application Information

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IPC IPC(8): B65D5/42B31B1/25B31B50/25
CPCB65D85/80B65D65/40B31B3/00B31B1/25B31B2201/257B65D75/12B31F1/10B31B50/256
Inventor 内科尔·卡洛斯·多阿马拉尔
Owner TETRA LAVAL HLDG & FINANCE SA
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