RU2140384C1 - Method of manufacture of container for food product and such container - Google Patents

Abstract

FIELD: food industry. SUBSTANCE: blank for container is heated and then moulded by blowing to form container housing, after which upper part of blank is cut off and container is filled with food product. With container filled up, neck of housing is closed by expanding the cover. Container for food product has cylindrical housing made of polymeric material, with bottom and neck with cover. Cover is made of metal and is installed relative to housing neck for expanding. EFFECT: simplified design of container for food products, protection against replacement of product filled into container. 3 cl, 1 dwg

Description

 The invention relates to containers for storing food products having a curved cross-section in cross section, and more particularly relates to a method for manufacturing a container for a food product and a container for a food product.

 This invention can be used in the food industry for storing food products, including under pressure, for example, mineral water, beer, juices, wine and can be used for bottling other drinks and storing pasty products in the food industry.

 A known method of manufacturing a container for a food product (SU, 1053740, A) is that from the pre-made on the extrusion press of the workpiece by hot blowing in the form or half-mold form the container body. Before hot blowing, one end of the preform is closed with a lid, and the other is bordered with metal foil. After filling the container body with food product, the neck of the body is closed with a lid, the latter being screwed up or simply going into the protrusion of the neck. However, this method of manufacturing a container does not allow to exclude a fake or replacement of a product placed inside the container, since the lid covering the neck of the housing is easily removed and can be used repeatedly.

 A known container for a food product (SU, 1053740, A), comprising a cylindrical body made of a polymeric material, with tapered upper and lower parts having a neck and a bottom with lids. A cartridge made of a material stronger than the material of the container is mounted on the cylindrical part of the container. The edge of the neck is bordered with metal foil, on the outside of which a thread or protrusion is made to fix the cover. However, this container has a complex structure, due to the presence of additional parts, such as a clip, metal foil, a cover located on the bottom. This container does not exclude the possibility of counterfeiting or replacing a product placed inside the container.

 The basis of the invention is the creation of a method of manufacturing a container for a food product and a container for a food product, in which, due to structural changes obtained by the introduction of additional operations, simplifies the design, makes it difficult to fake or replace the product placed inside the container.

 The problem is solved in that in the method of manufacturing a container for food products, which consists in the fact that the container body is formed from a preformed blank by blowing, and after filling the body with food product, the neck of the body is closed with a lid, according to the invention, the blank is heated before blowing, after the body is formed containers cut off the upper part of the workpiece with a neck, and closing the neck of the body with a lid is carried out by rolling.

 Also, the problem is solved in that in a container for a food product containing a cylindrical body made of polymeric material having a bottom and a neck with a lid, according to the invention, the lid with a key is made of metal and mounted relative to the neck of the body with the possibility of rolling.

 It is advisable that the container body be made of polyethylene terephthalate.

 This invention allows due to structural changes obtained by the introduction of additional operations, to simplify the design, which reduces labor costs, to complicate the possibility of counterfeiting or replacing a product placed inside the container with a single use of the lid. Also, this container for a food product, in addition to ensuring the safety of the product contained in it, allows observing the product itself due to the transparency of the material used for the housing. Using the mechanical method of closing the metal lid - rolling eliminates the possibility of adverse effects on the food product located in the container, for example, local temperature heating.

 The invention is further illustrated by a specific embodiment and the accompanying drawing, which shows a container for a food product, a longitudinal section, with a sealed lid, according to the invention.

 A method of manufacturing a container for a food product is that a preformed workpiece is heated to a temperature at which the material of the workpiece is softened and the preparation itself is disinfected. Then from it by blowing form the body of the container and cut off the upper part of the workpiece with the neck. After filling the container body with a food product, the neck of the body is closed with a lid and rolling is carried out.

 The container for the food product contains a housing 1 with a bottom 2 having a concave spherical shape, and a neck 3. The container also contains a lid 4 with a key 5 ("easy-open") having a cylindrical section 6 with a flange 7. The housing 1 of the container is made of a polymeric material, in this example polyethylene terephthalate. The cover 4 is made of metal and installed relative to the neck 3 of the housing 1 with the possibility of rolling. The accompanying drawing shows a container with a lid 4 after rolling. Inside the housing 1 contains a liquid food product 8, for example, mineral water.

This container for a food product is made by blowing from a prefabricated prefabricated on an extrusion press. Moreover, the heating is carried out by bactericidal lamps to a temperature above 100 ^o C in order to sterilize the container. Blowing the housing 1 capacity is carried out in two stages. First stage: initial axial tension with preliminary blowing with low pressure. Second stage: final high-pressure blowing. Combination of both stages of blowing is allowed. After the manufacture of the container body 1, the upper part with the neck is cut off from the workpiece in a known manner, depending on the required volume of the container, for example, 0.33 L, 0.5 L and so on. After filling the body of the container with a food product 1, the neck 3 is covered with a metal cap 4 with a key 5 and rolled in a well-known manner. Thus, this invention allows, due to structural changes obtained by the introduction of additional operations, to simplify the design of the container for the food product and make it difficult to fake or replace the product placed inside the container.

Claims (3)

 1. A method of manufacturing a container for a food product, which consists in the fact that a container body is formed from a preformed blank by blowing, and after filling the body with food product, the neck of the body is closed with a lid, characterized in that the blank is heated before blowing, after the upper body is formed, the upper part is cut off blanks with a neck, and closing the neck of the body with a lid is carried out by rolling.  2. A container for a food product containing a cylindrical body made of a polymeric material, having a bottom and a neck with a lid, characterized in that the lid with a key is made of metal and installed relative to the neck of the body with the possibility of rolling.  3. A container for a food product according to claim 2, characterized in that the container body is made of polyethylene terephthalate.