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Package, and material for making package

A technology for packaging tubes and laminated materials, applied in the field of manufacturing such laminated materials and using such laminated materials to manufacture packaging tubes, capable of solving problems such as cracking, unsuitable packaging compositions, cracked skins, etc.

Inactive Publication Date: 2018-07-13
COLGATE PALMOLIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been found that packaging tubes made of laminated materials including paper are not suitable for packaging compositions such as toothpaste, cosmetics, condiments and glues, because the packaging articles made from such materials are too weak (and therefore vulnerable to dropping) after rupture) and suffered sheath rupture at the seams of the tube

Method used

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  • Package, and material for making package
  • Package, and material for making package
  • Package, and material for making package

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] A laminated structure according to the invention and having the composition (from outermost to innermost):

[0077] 44μm PE / 9μm LDPE / printing paper / 9μm LDPE / 35μm PE / 5μm EAA / foil / 5μm EAA / 16μm PE / 40μm PE

[0078] is prepared. The outer 44μm LDPE seal is extrusion coated. The inner 40μm PE seal is preformed multilayer blown film. The barrier foil layer is aluminum foil. This laminated tube was made using an AISA tube making machine. A representation of a microphotograph of the side seam of this laminate is at image 3 , where the entire laminate thickness 8 consists of the outer seal PE 1 , the paper layer 2 , the barrier foil layer 3 and the inner seal 4 and an additional PE layer 9 .

Embodiment 2

[0080] A laminate structure having the composition (from outermost to innermost):

[0081] 40μm PE / 20μm LDPE / 9μm EAA / printing paper / 9μm EAA / 40μm PE-20μm EAA / 12μm foil / 10μmEAA-40μm PE / 40μm PE

[0082] is prepared. In this example, both the outer PE sealing layer and the inner PE sealing layer are pre-formed multilayer blown films. Coated paper with EAA. The foil layer is aluminum foil.

Embodiment 3

[0084] A laminate structure having the composition (from outermost to innermost):

[0085] 60μm PE / 85μm printing paper / 27μm PE / 20μm PE with 2% white pigment masterbatch / 20μm EAA / 12μm foil / 20μm EAA / 20μm PE / 38μm PE

[0086] is prepared. The 85 μm paper was first printed and then coated with 27 μm PE at one side and 60 μm PE at the other side to form a coated paper layer. The coated paper layer was then laminated to a 12 μm foil via an extrusion lamination process to coextrude 20 μm PE and 20 μm EAA bonding resin with 2% white pigment masterbatch. The other side of the foil was then laminated to a preformed PE sealing layer with a thickness of 38 μm by coextrusion of 20 μm EAA bonding resin and 20 μm PE. The coextruded PE was Dow LDPE 722 with a melt index of 8 g / 10 min and the EAA resin was Dow Chemicals PRIMACOR with a melt index of 9.8 g / 10 min TM 3002. The total thickness of the laminate is 300 μm. This laminate produces tubes that pass the drop test and provide good co...

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Abstract

The invention relates to a package, and a material for making the package, in particular to a laminated material, which sequentially comprises (a) an outside sealing layer comprising a thermoplastic polymer, (b) a paper layer, (c) a blocking layer, and (d) an inner sealing layer comprising the thermoplastic polymer from the outermost layer to the innermost layer. The paper layer provided by the invention has the Scott adhesive strength ranging from 250 to 450J / m<2>.

Description

[0001] This application is a divisional application of a Chinese patent application with an application date of October 30, 2013, an application number of 201380080209.7, and an invention title of "packaging and materials for making packaging". technical field [0002] The present invention relates to novel deformable laminates and to containers made therefrom, such as dispensing or packaging tubes for toothpaste, cosmetics, condiments, glues and other materials having the consistency of pastes, gels or creams. The invention also relates to methods of making such laminates and using such laminates to make packaging tubes. Background technique [0003] Collapsible tubes formed from metal and plastic materials are known in the packaging art. Conventionally, petroleum based plastics are used in tube packaging laminates. It would be desirable to provide packaging materials that at least partially include renewable materials in order to reduce the use of petroleum-based material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/085B32B15/12B65D65/40B65D35/02B32B27/30B32B27/10B32B29/00B32B33/00B32B1/08B32B7/12B32B15/20
CPCB32B15/08B32B15/20B32B27/08B32B27/10B32B27/306B32B27/308B32B27/32B32B2255/12B32B2255/26B32B2307/7244B32B2307/7246B32B2439/40B32B2439/46B32B1/08B32B7/12B32B15/082B32B2307/7265B32B2250/05B65D35/02B65D65/40
Inventor 汪军托德·万戈登乔尔·米永黎伯贤
Owner COLGATE PALMOLIVE CO