The subject of the invention is a method of placement of an antibacterial layer on shaped surfaces of products which come into public, repeated contact with the human body, to be used to cover with antibacterial foil such products as stair railings, handrails in public transit vehicles, door handles, school and hospital equipment and other elements which are constantly being touched by any number of persons.

Antibacterial protection, in particular in the times of mass migrations and movement of people, both between distant facilities and in the nearest vicinity, as well as the use of public facilities, such as banks, schools, offices, hospital and public transit forces the users into contact with elements of equipment of such facilities, such as stair railings, door handles, handrails and others. Bacteria remain on the surface of these elements, left by a user, and then transfer onto another user. This may result in falling ill, in the spread of diseases, and in special cases in an epidemic.

To protect against the transfer of bacteria through the touching of public items they were manufactured with copper, which has special antimicrobial properties. These products are very expensive to manufacture, and moreover oxidise after a short time, and the tarnish layer causes it to lose aesthetic properties and reduce antimicrobial properties.

The goal of this invention is the construction of any products with antimicrobial properties by covering them with foil, containing nickel, mainly used to prevent oxidation, and zinc allowing the adoption of an appropriate colour of the foil.

The essence of the invention, which is a method of placement of an antibacterial layer on shaped surfaces of products which come into public, repeated contact with the human body consists of the product, which is a shaped element or a flat surface, being covered with a covering layer with a thickness of at least 0.2 mm, which is an alloy composed of copper in an amount of 60-90%, advantageously 75%, and additives in an amount of 10^0%.

It is advantageous when the covering layer is a foil.

It is also advantageous when the covering layer is a deposit.

It is also advantageous when the covering layer is a cylindrical product in the form of seamless tubes.

It is advantageous when the foil is stabilised on the product.

It is advantageous when the additive is nickel in an amount of 9-20%, advantageously 14%. It is advantageous when the additive is zinc in an amount of 9-20%, advantageously 14%.

It is advantageous when the additive is zinc in an amount of 9-20%, advantageously 14% and nickel in an amount of 9-20%, advantageously 14%.

It is also advantageous when the foil on a shaped element is stabilised by welding the edges of the foil to the product.

It is advantageous when the foil on shaped element is stabilised by gluing.

It is advantageous when the foil on shaped element is stabilised by welding.

It is advantageous when the foil on shaped element is stabilised by brazing.

It is advantageous when the foil is stabilised by entering the edges of the foil into a gap, and fixing the edges, advantageously with an expanding insert.

It is especially advantageous when the material for the creation of a deposit with a thickness of 0.2 - 0.5 mm, advantageously 0.5 mm is a powder, consisting of a mixture of copper with the grain size of 0.05 - 0.8 mm in an amount of 60-90%, advantageously 75%, and additives in an amount of 10-40%, advantageously 25%, whereas such a placed layer undergoes a finish treatment. It is advantageous when the additive is nickel in an amount of 9-20%, advantageously 14%.

It is also advantageous when the additive is zinc in an amount of 9-20%, advantageously 14%.

It is also advantageous when the additive is zinc in an amount of 9-20%, advantageously 14% and nickel in an amount of 9-20%, advantageously 14%.

Additionally it is advantageous, when the deposit is placed with flame deposition with an oxyacetylene torch.

Moreover it is advantageous when the deposit is placed with covered arc welding.

Additionally it is advantageous, when the deposit is placed with arc welding with a covered electrode. .

It is advantageous, when the deposit is deposited with plasma deposition.

Also it is advantageous, when the treatment finish of the top layer of he deposit is conducted by machining.

Furthermore it is advantageous, when the treatment finish of the top layer of the deposit is conducted by grinding. Moreover it is advantageous, when the treatment finish of the top layer of the deposit is conducted by polishing.

It is also advantageous, when the treatment finish of the top layer of the deposit is conducted by surface forming processes.

It is especially advantageous when a pipe is placed on a shaped element after an initial heating and plasticisation of the pipe.

The use of the solution presented in the invention enables the following technical and utility effects:

- construction of products which come into public, repeated contact with the human body, such as stair railings, entrance handrails in public transit vehicles, door handles, hospital furniture and other with an external antibacterial layer,

- increase of hygiene when coming into contact with products covered with foil in accordance with the invention,

- preventing the spread of infection by direct contact with infected persons,

- the possibility of adapting the foil to each shape of the product covered with the foil,

- the possibility of placing the deposing on any shape of the product covered with the foil,

- the possibility of placing a cylindrical element on products with any diameter,

- the possibility of using any method for the stabilisation of the foil on the product, such as gluing, welding, brazing and others,

- the possibility of construction of products covered with foil with any colour required by operational conditions, set by the contents of alloy additives such as nickel or zinc in the alloy, - the possibility of manufacturing of products with a differing range of corrosive environment impact established by the nickel contents in the alloy,

- the possibility of covering the surfaces of products made from any metal, plastic, wood and others with the foil,

- the possibility of using any method for the placement of deposit on the product, such as plasma depositing, covered arc, covered electrode or oxyacetylene torch,

- the possibility of construction of products covered with a deposit with any colour required by operational conditions, set by the contents of alloy additives such as nickel or zinc in the alloy,

- the possibility of manufacturing of products with a differing range of corrosive environment impact established by the nickel contents in the alloy,

- the possibility of covering the surface of products manufactured with any metal with the deposit,

- low costs of manufacturing.

The subject of the invention was presented on the design examples, which are not limiting, presented below, whereas on fig. 1 an example method for the stabilisation of the foil by welding on the product which is a pipe shape, and on fig. 2 an example method for the stabilisation of the foil on the product by entering the edges of the foil into a gap, and fixing the edges, advantageously with an expanding insert.

Example 1

On the product, which is a shaped element or a flat surface, a foil with a thickness of 0.2 mm is placed, which is an alloy composed of copper in an amount of 86% and additives in form of nickel in an amount of 14%, whereas such a foil is stabilised on the product. Example 2

On the product, which is a shaped element or a flat surface, a foil with a thickness of 0.5 mm is placed, which is an alloy composed of copper in an amount of 81% and additives in form of nickel in an amount of 19%, whereas such a foil is stabilised on the product.

Example 3

On the product, which is a shaped element or a flat surface, a foil with a thickness of 0.3 mm is placed, which is an alloy composed of copper in an amount of 86% and additives in form of zinc in an amount of 14%, whereas such a foil is stabilised on the product.

Example 4

On the product, which is a shaped element or a flat surface, a foil with a thickness of 0.6 mm is placed, which is an alloy composed of copper in an amount of 81% and additives in form of zinc in an amount of 19%, whereas such a foil is stabilised on the product.

Example 5

On the product, which is a shaped element or a flat surface, a foil with a thickness of 0.4 mm is placed, which is an alloy composed of copper in an amount of 62% and additives in form of zinc in an amount of 19% and nickel in an amount of 19%, whereas such a foil is stabilised on the product by foil pressing.

Example 6

On the product, which is a shaped element or a flat surface, a foil with a thickness of 0.4 mm is placed, which is an alloy composed of copper in an amount of 62% and additives in form of zinc in an amount of 19% and nickel in an amount of 19%, whereas such a foil is stabilised on the product.

Example 7

On the product, which is a shaped element or a flat surface, a foil with a thickness of 0.5 mm is placed, which is an alloy composed of copper in an amount of 71% and additives in form of zinc in an amount of 20% and nickel in an amount of 9%, whereas such a foil is stabilised on the product.

Example 8

On the product, which is a shaped element or a flat surface, a foil with a thickness of 0.5 mm is placed, which is an alloy composed of copper in an amount of 76% and additives in form of zinc in an amount of 9% and nickel in an amount of 15%, whereas such a foil is stabilised on the product.

Example 9

On the product, which is a shaped element or a flat surface, a deposit with a thickness of 0.4 mm is placed with a covered arc torch, where the deposit material is composed of copper in an amount of 86% and additives in form of nickel in an amount of 14%, after which finishing work is performed by machining.

Example 10

On the product, which is a shaped element or a flat surface, a deposit with a thickness of 0.2 mm is placed with an oxyacetylene torch, where the deposit material is composed of copper in an amount of 86% and additives in form of zinc in an amount of 14%, after which finishing work is performed by grinding. Example 1 1

On the product, which is a shaped element or a flat surface, a deposit with a thickness of 0.5 mm is placed with plasma deposition, where the deposit material is composed of copper in an amount of 72% and additives in form of zinc in an amount of 14% and nickel in an amount of 14%>, after which finishing work is performed by polishing.

Example 12

On the product, which is a shaped element or a flat surface, a deposit with a thickness of 0.7 mm is placed with covered electrode welding, where the electrode cover material is composed of copper in an amount of 66%> and additives in form of zinc in an amount of 19%) and nickel in an amount of 15%>, after which finishing work is performed by forming processes.

Example 13

On the product, which is a pipe element a cylindrical element heated to the temperature of plasticity, which after reaching ambient temperature becomes permanently collected with the pipe element.

The product shown on fig. 1 is a pipe 1, on which the foil 2 was placed, manufactured in accordance with any of the aforementioned examples, and the edges were connected with the weld 3.

The product shown on fig. 2 in a cross section perpendicular to its lengthwise axis is a longitudinal element 4 with a longitudinal slot 5, The foil 6 constructed according to any of the aforementioned examples is placed on the longitudinal element and the edges of the foil 6 are placed within the slot 5. Afterwards an expanding insert 7 is placed in the slot 5.