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Multilayer material suitable for making packag container

A technology of multi-layer materials and packaging containers, applied in the field of multi-layer plastics, can solve the problems of high price, quality defects, and inability to absorb vibration and impact force.

Inactive Publication Date: 2002-06-05
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, composites containing polyethylene (PE) and polyethylene terephthalate (PET) are not very satisfactory compared to similar composites without polyethylene terephthalate, because the Composites cannot be recycled after use
Moreover, when such multi-layer materials are used to manufacture packaging containers, there are quality defects due to the presence of polyethylene terephthalate therein.
In fact, when a packaging container made of this composite material containing polyethylene (PE) and polyethylene terephthalate (PET) is subjected to high pressure and / or is subjected to violent impact, for example, consumers will There is a risk of rupture when the packaging container is dropped on the floor
This is because polyethylene terephthalate has poor ductility at room temperature and cannot absorb vibration and impact.
Another disadvantage associated with this multilayer material is that it is expensive due to the use of polyethylene terephthalate

Method used

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  • Multilayer material suitable for making packag container
  • Multilayer material suitable for making packag container
  • Multilayer material suitable for making packag container

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0039] like figure 1 As shown, the scent barrier layer (10) is sandwiched between a first layer (11) and a second layer (12) of polyolefin based material. The above-mentioned first layer material is a coextruded film made of low density polyethylene, linear low density polyethylene and high density polyethylene with a thickness of 75 microns. The above-mentioned first layer material is a film to which white pigment has been added. The second layer material is a 25 micron transparent coextruded film made of low density polyethylene and linear low density polyethylene. The aforementioned scent barrier layer was Flexoplastol(R) 2KB-Lacquer 9A 918 920 and Crosslinker(R) 9A919 612 dissolved in ethyl acetate in a weight ratio of lacquer-forming component to crosslinker of 100:25. The barrier layer has a thickness of 2-3 microns.

[0040] In this example, the scent barrier layer (10) is applied to the first film (11) at the first station of the flexographic printing press, while t...

example 2

[0043] from figure 2 It can be seen that the scent barrier layer (20) is bonded to a polyolefin based layer of material (21). That layer is a 70-micron-thick coextruded film of low-density polyethylene, linear low-density polyethylene, and high-density polyethylene that also contains 24 percent post-consumer recycled plastic. The scent barrier layer is Flexoplastol(R) 2KB-Lacquer 9A 919 817 and Crosslinke(R) 9A 919 621 dissolved in ethyl acetate in a weight ratio of lacquer forming component to crosslinker of 100:25. The barrier layer has a thickness of 2-3 microns.

[0044] The scent barrier layer (20) is bonded to the film (21) at the first or last station of the cover printing press, and the ink (14) is also printed at the other station of the printing press. The film had a minimum surface tension of 40 dynes / cm (corona treated film) so that the barrier layer and ink would adhere strongly to the film. The scent barrier layer is rolled using a very fine Anylox® roller to...

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Abstract

The present invention is a multilayer material for making packages suitable for containing dry or liquid odoriferous products such as detergent compositions. Said multilayer material comprises at least a layer of polyolefine-based material (21), less than 25 % by weight of post consumer recycled plastic and a perfume barrier layer (20) comprising a lacquer. Said multilayer material allows to prevent migration of odoriferous compounds like perfume through the walls of a package made of said material while being at the same time well accepted by the consumer from an environmental point of view, i.e. said multilayer material is recyclable.

Description

technical field [0001] The present invention relates to a multi-layer plastic having good odor barrier properties, suitable for packaging of the type produced by fusing and subsequently cutting plastic sheets or tubes at regular intervals container. The multilayer materials of the present invention are particularly suitable for making stand-up refillable pouches for packaging odorous compositions such as laundry and household detergents. Background of the invention [0002] Many different types of upright plastic containers and the materials used to make them have been well described in this technical field, and these containers can be used as packaging materials for dry, powdered or granular products. Daily necessities, even used to pack flowable products or liquids. [0003] Many of the above-mentioned plastics are multi-layer materials containing different types of materials in order to meet the different requirements of this composite material...

Claims

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Application Information

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IPC IPC(8): B65D30/02B32B27/32B32B27/40B65D65/40
CPCB32B27/32B32B27/06B32B1/00B32B2307/7242B32B27/08B32B2309/105B32B2323/043B32B2323/046B32B2305/70
Inventor G·M·莫斯J·康纳特H·查本宁J·卡佐恩
Owner THE PROCTER & GAMBLE COMPANY