| 摘要 |
The invention relates to articles made from polymers, in particular fibres produced by extrusion, and, more specifically, to a flat fibre made from synthetic raw material and having predetermined characteristics. The novel flat fibre made from synthetic raw material can be used for different purposes in many branches of industry. It can be used, for example, in the weaving industry and the food industry and as a packaging material, and can compare favourably with known fibres as a result of its high durability and resistance to the effects of petrol and moisture, as well as being reusable. Furthermore, the flat fibre made from synthetic raw material can be used in radio electronics, the instrumentation industry and other branches of industry. The objective set by the designer of this novel flat fibre made from synthetic raw material was to produce a flat fibre made from synthetic raw material which would make it possible to reduce manufacturing costs by using cheap or recycled material without drastically reducing the durability of the fibre or other properties necessary to specific types of fibres, thus making it possible to use the novel flat fibre made from synthetic raw material in the manufacture of products for different purposes. The technical result achieved in the process of solving the above problem is the possibility of forming layers in a flat fibre made from synthetic raw material which have predetermined properties, using cheaper or recycled material. The essence of the invention is that the flat fibre made from synthetic raw material contains additives and consists of at least three layers. Furthermore, the essence of the invention is that each of the layers has different properties, and the inner layer of the fibre contains calcium carbonate, the amount of calcium carbonate constituting 0.1-40% of the mass of the main raw material of the inner layer. |
