Reinforced thin film for flexible packaging

A method of producing a thermoplastic film comprising:

• (i) extruding a base film comprising a stretchable polyolefin material comprising one or more layers;
• (ii) extruding a plurality of fibre elements;
• (iii) applying the plurality of fibre elements to at least one side of the base film, and
• (iv) bonding the fibre elements to the base film;
• wherein the fiber elements are extruded directly onto the base film;
• wherein the extruded fibres form one or more protrusions relative to the plane of the base film;
• wherein at the location where the fibre elements are provided on the base film, a domain of a material mixture comprising the base film material and the fibre material is present between a domain of pure base film material and a domain of pure fibre material, such that at least a portion of each fibre element forms an interfacial mixture with the base film and wherein the average thickness of the base film is less than the average thickness of the protrusion;
• wherein the fibres cover less than 51% of the surface area of the film.