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Carton with improved folding

A carton and cardboard technology, applied in the direction of box making operations, rigid containers, containers, etc., can solve the problems of irrecoverable, damaged, unsuitable for cardboard implementation, etc., and achieve the effect of improving folding characteristics

Inactive Publication Date: 2017-08-01
UNILEVER NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, there are key differences between cardboard materials and plastics which render the extrapolation of the disclosure of US4447479 unsuitable for implementing this technique on cardboard on a mill scale without inventive effort
Unlike plastic, cardboard material is neither impact resistant nor heat sealable and tends to be damaged irreversibly if cut indiscriminately

Method used

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  • Carton with improved folding
  • Carton with improved folding
  • Carton with improved folding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Two types of paperboard cartons were obtained for carrying out experiments testing the crease resilience of the cartons of the present invention.

[0061] 1) Carton I-350GSM gray backboard, 10μm metallized polyethylene terephthalate (MET-PET) laminated on the cardboard outside the carton.

[0062] 2) Carton II-350GSM white backsheet, 10μm metallized polyester (MET-PET) laminated on the cardboard outside the carton and 10μm transparent polyethylene terephthalate (PET) laminated layer Press on the inside of the carton.

[0063] Both panels were printed on top using clear ink with UV texture and spot varnish top. After printing and varnish application, the board pieces are left to cure for 12-36 hours.

[0064] After curing, the sheet is stamped in a single operation using special dies made to create a distribution of scores on the fold lines. The score is about 50% deep. Multiple scores along the top and bottom flaps cover approximately 70% of the fold line, and a sin...

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PUM

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Abstract

The present invention provides a carton (100) made of paperboard having flaps (101, 105), the carton (100) comprising, at least one score (102) along a crease line (103) of at least one flap (101, 105), wherein the score (102) is 25% to 85% of thickness of the paperboard and 5% to 70% of length of the crease line (103). The invention also provides a method of securing flaps (101, 105) of the carton (100).

Description

technical field [0001] This invention relates to cartons with flaps. Most particularly, the present invention relates to a flapped paperboard carton with improved folding and a method of securing the flaps of said carton. Background technique [0002] Cartons have a variety of uses in the packaging industry. Although the packaging industry has developed and discovered a wide variety of other materials for packaging, such as plastics, metals, alloys, glass, wood, etc. However, paper is still widely used because it is low cost, retains its shape, and is easy to decorate. [0003] Paper can also be laminated for strength or to provide barrier properties. The materials used can be smooth or matt or embossed. Other materials can be laminated to the cardboard, such as foil or plastic. Packaging produced using paper and board includes cartons, signs, leaflets, tubes, corrugated boxes, rigid boxes and pulp packs. [0004] Therefore, paperboard remains the material of choice fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D5/42
CPCB65D5/4266B65D5/20B31B50/142B31B50/252
Inventor J·斯里达尔A·特瓦里
Owner UNILEVER NV