JPS61149A - Drink vessel containing carbonic acid - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an improved container for drinks saturated with carbon dioxide and made effervescent, comprising a composite can.

carbonated drinks and champagne, cider,
Soft drinks, such as sparkling wine, soda and other drinks, are mainly stored in glass bottles that can withstand the pressure created by carbon dioxide gas on the one hand and the aggressive acidity of food products on the other hand. transported and stored. However, in addition to their fragility, glass bottles are disadvantageous due to their relatively excessive weight relative to their contents11, and this is usually considered a major disadvantage from two handling and transportation points of view. It is being

[Conventional technology]

In order to eliminate these inconveniences, products are known that use metal cans instead of glass bottles. Generally, metal cans include a body having two ends closed by a bottom and/or a cover or lid, the bottom and the lid being attached to the ends of the body with bent edges. The inner surfaces of the body, lid and bottom are covered with suitable faces in an attempt to eliminate direct contact between the metal and the contents. However, when subjected to impact and/or when the can is handled, the face can crack, allowing undesired contact between the contents and the metal. Furthermore, the face layer often has weak spots or cracks through which the contents can seep and cause undesirable corrosion of the interior surface of the metal can. Under such conditions, an incompatibility between the contents and the metal can is bound to occur, and furthermore, there is a new tendency to use glass bottles even though the above disadvantages cannot be tolerated. begins to occur.

[Problem that the invention seeks to solve]

A principal object of the present invention is to provide an improved container for carbonated beverages in the form of a composite can that is relatively lightweight and yet has non-corrosive properties similar to those using glass bottles. The aim is to eliminate the inconveniences of conventional cans.

[Means for solving problems]

To this end, the present invention provides a container for carbonated beverages of a composite can or box consisting of a body made of several layers of strip material and a metal lid and/or bottom, said body; A container is provided, characterized in that it is provided with a lining (1) of fluid-impermeable material, which covers the inner surfaces of the lid and the bottom and protects these inner surfaces from the corrosive effects of the contents.

According to another aspect characterizing the invention, the fluid-tight lining is made of a plastic material that is assembled by welding after the lid and the bottom are attached by hemming to both ends of the body. It consists of a film sheet.

An advantageous aspect characterizing the invention is the fact that the essential K, carbonated beverage is safely stored in a container that is of low weight and yet can effectively withstand the internal pressure of its contents. It exists in

A more clear understanding of the invention will be obtained by the following description of typical examples of its embodiments with reference to the accompanying drawings:
You will get it.

〔Example〕

Referring to FIG. 1, the container schematically shown therein consists of a substantially cylindrical composite can or box adapted to contain a carbonated beverage. This composite can has both ends 3 and 4.
The main body 2 has a main body 2, one of whose ends is closed by a preferably metal lid 5 with or without a quick-opening device (not shown), and the other end is closed with a preferably metal bottom 6. is closed. The metal lid 5 and the metal bottom 6 are preferably and advantageously identical, so that the same tools and the same materials are used to manufacture the lid 5 and the bottom 6 provided with the quick-opening device. I can do it.

The metal lid 5 and metal bottom 6 are assembled to both ends 3 and 4 of the main body 2 by edge bending as shown at 7 and 8. Due to the pressure of carbon dioxide contained in the beverage, a double edge bending process is advisable for obvious safety reasons.

According to the invention, this container 1 has a fluid-tight inner lining 9 of a material compatible with the contents. More particularly, the material should be able to withstand the corrosive effects caused by acids in beverages. This fluid-tight lining 9 forms an inner surface 13 of the body 2, the lid 5 and the bottom 6.
It consists of several layers of plastic film 10° 11 and 12 glued to 14 and 15. To form a fluid-tight lining 9, a plastic film 10.
11 and 12 are assembled by peripheral welding as shown in 16.17. This welding operation can be performed by any suitable welding technique such as induction, conduction, ultrasonic or other known welding techniques after the lid 5 and bottom 6 are attached to the ends 3, 4 of the body 2 by crimping. This is done using a welding method. However, the weldable plastic film 10 of the main body 2 is
and the plastic film 11.12 of the bottom 6. On the other hand, the welds between the various plastic surfaces of the films 10.11 and 12 are not simple weld seams, but rather the plastic film 10 of the body 2 and the plastic film 1 of the lid 5 and bottom 6.
1.12 and extends over the contact surface 18.19 formed between it.

The fluid-impermeable lining 9 therefore withstands the pressure due to the large surface area of the weld, and this also helps the body 2,
Since it is surrounded by the lid 5 and the bottom 6, it has good resistance against deformation.

Referring to FIG. 2, it can be seen that the inner plastic film 11 is glued to one side 21 of a metal strip 22, preferably of aluminum, by using 200 layers of adhesive suitable for this purpose. . The other side of this metal strip 22 is coated with another layer 24 of a suitable adhesive on one side 25 of a fibrous strip 26, in particular a kraft paper strip.
It is glued by. The other side 27 of this kraft paper strip 26 is adhered by means of another adhesive layer 28 to one side 29 of a first suitably treated moisture-resistant cardboard sheet 30; The sol paper sheet 30 is coated with an adhesive layer 32 and coated with a second moisture resistant 7) glu paper sheet 34.
It has the other surface 31 fixed to one surface 33 of. The label 36 is attached to this second kraft goal paper v-t3.
4 is attached to the other surface 35 of 4.

Referring to FIG. 3, which shows the lid 5 or bottom 6 of a composite container, this lid or bottom consists of a convex disc 38 with a collar-forming upright 9 periphery 40. The upper end 41 of this rubbing part 40 is connected to the lid 5
Alternatively, it comprises an annular outer portion 42 to which the bottom 6 can be attached to the corresponding end 3 or 4 of the body 2 by means of a bevel. According to the invention, the inner surface 14 or 15 of the lid or bottom is provided with a plastic film 11 or 12 compatible with the solastic film 10 or the body 2. This plastic film 11 or 12 extends beyond the convex disk 38 and is adhered to the inner surface 43 of the rubbing part 40 and the inner surface 44 of the annular part 42. Therefore, the contact surface 20 of the welded parts l6, 17,
21 corresponds to the height 45 of the collar portion 40. This plastic film 11 or 12 is the inner surface 14, 1 of the convex disc 38.
5, the inner surface 43 of the collar 40, and the inner surface 44 of the ring 42 of the lid or bottom 6 are bonded by coating with adhesive 46 (see FIG. 4) or by welding (see FIG. 5). Although the present invention has been described in detail with reference to exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes can be made without departing from the basic principles of the invention. It is easy to do.

[Brief explanation of the drawing]

FIG. 1 is an axial longitudinal sectional view showing a container according to a typical form of an embodiment of the present invention, comprising a composite can filled with a carbonated beverage; FIG. 2 shows the main body of the composite can; FIG. 3 is a schematic representation of the bottom or lid of the invention; FIG. 4 is an inner surface covered with a plastic film bonded by adhesive; FIG. 5 is an enlarged radial cross-sectional view of another bottom or lid having an inner surface covered with a plastic film bonded by welding. 1... Container, 2... Main body, 3, 4... Both ends of main body,
5... Metal lid, 6... Metal bottom, 7, 8... Edge bent portion, 9... Lining, 10, 11, 12... Plastic film, 13, 14, 15... Inner surface , 16
．． 17... Peripheral welded part, 18, 19... Contact surface, 2
0, 24. 28.32, 37.46... Adhesive layer, 22... Metal strip, 26... Kraft paper strip, 30.34.
・・Moisture-resistant coal paper sheet, 36・・Label, 38・
...Convex disk, 40...Collar part, 42...Annular part. Below margin

Claims (1)

[Claims] 1. A container for carbonated beverages under pressure, such as champagne, soft drinks, soda, sparkling wine, cider and the like, comprising a body made of a plurality of strips of material; , consisting of a composite box or can having a metal bottom and/or a metal lid, the body, the bottom and/or the lid being able to match the acidity of the contents and containing a fluid. In a container having an inner surface covered with a plastic film constituting an impenetrable and deformable lining, the lid and bottom, which are identical and whose inner surfaces are provided with a plastic film, are the same as the lid provided with the plastic film lining. and the bottom provided with a plastic film lining are attached to both ends of the body also provided with a plastic film lining by bending the bottom twice, and the bottom is provided with a plastic film lining.
A carbonated beverage container in which a heavy edge bending installation step is completed by a peripheral welding step. 2. The peripheral welding of the plastic film constituting the fluid-impermeable lining is performed over the contact surfaces of the plastic film of the main body and the plastic films of the lid and bottom. container. 3. The wall of the main body includes a first adhesive layer, a metal strip, a second adhesive layer, a kraft paper strip, a third adhesive layer, and a third adhesive layer from the outer surface to the inner surface of the plastic film. 1 treated kraft cardboard sheet, a fourth adhesive layer,
A container according to claim 1, substantially comprising a second treated kraft sheet, a fifth adhesive layer and a label. 4. said lid consisting of a convex disc having a rising collar-forming periphery and an annular extension outside said collar-forming periphery; 2. A container according to claim 1, further comprising a plastic film fixed to the inner surface of the annular portion. 5. The convex bottom has a rising collar-forming peripheral portion and an outer annular portion of the collar-forming peripheral portion, and the convex bottom extends beyond the convex disk on its inner surface, and has an inner surface of the collar portion and an inner surface of the annular portion. 2. A container according to claim 1, further comprising a plastic film integral with the container. 6. The plastic film of the lid and bottom is adhered to the inner surface of the collar portion and the inner surface of the annular portion of the lid and bottom by welding or coating the inner surface of the convex disk with adhesive. Claims 1, 4 and 5
Container as described in item 1. 7. The height of the collar corresponds on the one hand to the height of the contact surface formed between the lid and the bottom and on the other hand to the height of the associated end of the body. The container according to item 1 of scope items 5 and 6.