Aerosol can
The invention provides an aerosol container having an outer container body ( 10 ) with a plastic liner or bag ( 40 ) arranged therein, into which both product and propellant are filled, characterized in that the plastic liner or bag ( 40 ) has a multi-layer construction. The liner or bag ( 40 ) comprises a layer that is resistant to the product and a layer that prevents diffusion of the propellant out of the liner or bag ( 40 ). Further layers may also be incorporated to provide additional properties as required, for example an oxygen barrier, scavenging etc. Furthermore, one or more tie-layers, such as adhesive for example, may be provided to hold the separate layers together.
1. An aerosol container and product package comprising:
a container body;
a liner or bag arranged in the container body, each of a product and a propellant are disposed within the liner or bag,
the liner or bag having multiple layers including a layer that is resistant to the product and a layer that prevents diffusion of the propellant out of the liner or bag.
2. An aerosol container according to claim 1 , wherein at least one of the layers includes nylon.
3. An aerosol container according to claim 1 , wherein the liner or bag comprises a unitary construction.
4. An aerosol container according to claim 1 , wherein the multiple layers of the liner or bag includes a layer that is resistant to the product and a layer that prevents diffusion of the propellant out of the liner or bag.
5. An aerosol container according to claim 4 , wherein the liner or bag also includes one of more tie-layers to hold the multiple layers together.
6. An aerosol container according to claim 1 , wherein at least one of the layers includes polyethylene.
7. An aerosol container according to claim 6 , wherein the polyethylene is low-density polyethylene.
8. A multi-layer liner for an aerosol container adapted to receive both a product and a propellant within, wherein the liner comprises a layer that is resistant to the product and a layer that prevents diffusion of the propellant out of the liner.
9. A multi-layer liner according to claim 8 , wherein the liner is manufactured from two layers of material heat-sealed together around their periphery, leaving an open portion for filling.
10. A multi-layer liner according to claim 8 , wherein the liner comprises a unitary construction.
11. A multi-layer liner for an aerosol container, comprising the following layers:
a 20% nylon layer
a 5% tie layer, and
a 75% low-density polyethylene layer.
12. An aerosol container comprising:
a container body;
a liner or bag arranged in the container body, the liner or bag adapted for receiving both a product and a propellant within,
the separate liner or bag having multiple layers including a layer that is resistant to the product and a layer that prevents diffusion of the propellant out of the liner or bag.