DE2337661A1 - COVER CAPSULE FOR CLOSURES OF BOTTLES AND CONTAINERS - Google Patents

Description

PATENT ADVOCATE DR.-ING. LOTTERHOS FRANKFURT (MAlM)

ANNASTRASSE 19 FE (NSP (ECHERi (0611) 555061 TELEG (AMMEi LOMOSAPATENT LANDESZENT (ALBANk 50007149 ' POSTSCHECK ACCOUNT FFM. 1667

FRANKFURT (MASN) ₁ July 18, 1973

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Establishments Pierre Remy, St-Eemy-Sur-Avre (Sure-et-Loir), France

Coating capsule for closures of bottles and containers.

The invention relates to a cover capsule made of heat-shrinkable material and a method for its production. This capsule can be used as actual closure may be used as protection of the sealing plug, or as an ornamental capsule _o

Coating capsules made of thin metal foil or of gelulose material which is applied in a moist state are known and tightly encloses the neck of the bottle during drying by shrinking. Capsules made from shrinkable thermoplastic are also available Material used that is applied cold and then under the action of heat tightly to the bottle neck or the like. In the latter case, thermoplastic material such as polyethylene or polyvinyl chloride was A pipe is made and a blank is made from pipe sections of suitable length. For the production of coated capsules for bottles, the tube section was reduced to a frustoconical Llodell brought, heated on this and then cooled. laugh after being drawn onto the corked bottles, it was reheated, so that the KaOsel the shape of the bottle neck snniiasrtc biases

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The method has the disadvantage that a previous production of a pipe by means of a special machine system is necessary is. learners must take special precautionary measures and it takes a relatively long time to print the desired labels and the like. To complete the capsule, which is closed on one side, a cover disk of the same diameter as the cover surface must also be used of the truncated cone between the folded edges of the Pipe to be attached. This means that there is only little space for printing rakes, fonts and fiscal ones Information and the like. The cover disk can be made of plastic or metal, The above procedure is in the French patent 1 424 731 described.,

The development in the field of coated capsules as well as regulatory requirements for affixing certain information, especially on the cover disk, led to the task described above

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mentioned disadvantages to b ^^ aHro-eSsa, ii ::. on: noglioiist economic Way to capsules hü. that all i'.onmersieilen and fiscal requirements

It was also suggested that instead of a tube, a section of tape should be used, namely from a sheet or tape made of polyvinyl chloride that can be shrunk perpendicular to the direction of deflection. The same conditions are then met. like a tube made of shrinkable? olyvir;: lc> iloricl or an aluminum foil. The known method starting from bands V-αηηχΐτβη brought some advantages. However ss' eliminated not the disadvantages mentioned above, u _o a, with respect to color and oppression "

The invention is based on the idea of using tapes as starting material which have a mono-orientation and in the manufacture of the capsules, the unwinding direction To take the direction of mono orientation, then the; occurs in the settlement direction »

The invention relates to a process for the production of coated capsules which has the following basic features having. Ribbons of heat shrinkable mono-oriented Polyvinyl chloride or other plastics are unwound in the direction of the mono orientation. They are "printed and cut. The sections are rolled together in a frustoconical shape. On the small surface (top surface of the truncated cone) the edge is turned inwards in a ring and with a outer cover disk closed. The capsules are then placed in the storage or feed space of any encapsulation machine stacked "

This manufacturing process has the advantage that; any transversely directed rolling in of the tape, ie. bending about its longitudinal axis is avoided.

The invention also relates to a coating capsule as the actual closure, as protection of the closure or as a decorative capsule made of heat-shrinking mono-oriented material, characterized by a shell of revolution around an axis running perpendicular to the direction of the mono-orientation, wherein, one end of the jacket is turned inwards in a ring shape in a plane and is secured by a cover disk is completed.

Under the conditions of the invention, the train secures the settlement directly compensates for the shrinkage given to the tape. It is possible to first dry the applied Imprints and evaporation of solvents' to carry out at higher temperatures and consequently the Working cycle sequence for printing and thus increasing the output of the entire system "

In the method of the invention one prints mono-oriented and in the direction of this orientation unwound with the desired motifs in trapezoidal shape, which later roll up corresponds to the truncated cone, laughing cutting the longitudinal

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and transverse edges, the capsules are assembled in a known manner. Of course, the cutting can be done with cutting tools corresponding to the outlines.

The cutting into trapezoidal sections, which correspond to the development or «, the outer surface of the capsule blank, leads to be sure to waste, but surprisingly it was found that the manufacture according to the invention is less in the end result is costly and simpler than fabrication using tapes whose shrinkage is perpendicular to the unwinding runs, It was also found that in the inventive Use of a shrinking in the direction of development Tape can reach the shrinkage coefficient of 80 $, while with transverse shrinkage or shrinkage perpendicular to the unwinding direction 40% are practically difficult to exceed «,

The process can be carried out using conventional printing machines, in which the evaporation temperature of the printing material solvent is regulated to higher values _e The working cycle sequence can therefore be accelerated without the motifs on the belt slipping or being deformed, because the tension exerted during the unwinding is sufficient to compensate for the slight lateral contraction and consequently the deformation of the motifs.

According to a further feature of the invention, the base surface or the top surface of the frustoconical forming mandrel is on to which the blanks are applied to form the capsule, provided with a slight peripheral gradation. This will the part of the blank protruding above the shaping mandrel is guided during heating in such a way that a horizontal flat one Edge is formed on the top surface of the Tormungsdoraes.

A gas flame, a hot air generator, use an infrared heater or other heat source. The radiated heat is compared to that of the 3?

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Mungsdorn directed protruding end of the blank and at an angle which is generally close to 45 ° and the Corresponds to the diameter and length of the capsule.

To join the edges of the frustoconical blank, you can attach an adhesive border to one of the edges, e.g. B. from thermo- or autoadhesive adhesive ₀ You can also cut the trapezoidal sections so that their non-parallel edges can be thermally bonded. It is also possible to use tapes which have already been provided with adhesive in the appropriate places before they are wound up.

According to the invention it is also provided that the cover disk is arranged on the flat edge of the cover surface of the capsule. In this way, you can see the cover plate, _o B. zz by bonding or other means to easily attach and does not need to get as far into the interior of the blank and on the head of Pormungsdornes them. Another advantage of this is that one has a larger surface, which can be, for example, the same as the top surface of the "truncated capsule. The cover disks can be punched out of a metal or plastic band in a known manner and brought to the point of application. Simultaneous or non-simultaneous attachment The cover disk on the capsule can be done by applying adhesive to the circumference of the cover disk or in dots on the flat edge of the capsule.

According to a further feature of the invention, the outer surface of the capsule jacket can have bulges. Their number and Distribution can vary from capsule to capsule. For example, three, four or five bulges can be provided be. The bulges are produced on the conical shaping mandrels, which then create the corresponding irregularities have on their surfaces »The number

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and / or distribution can vary from mandrel to mandrel »

According to a modification, the bulges can be elongated, for example in the form of webs or grooves, this facilitates the introduction of air for automatic distribution to the bottles _{or the like}

During the formation of the capsules, the material lies against the truncated cone and its surface profile forms the Desired bulges from »In a manufacturing machine with several processing points, various types of Mandrels or »mandrels with different surface profiles can be provided»

The description of exemplary embodiments follows for further explanation based on the drawings «

FIGS. 1a and 1b show a capsule being manufactured on the forming mandrel ₀

FIGS. 2a to 2e show the individual steps in capsule production

Figure 3 shows a capsule with three wart-like bulges »

FIG. 4 shows a capsule with three longitudinal webs Protrusions.

The frustoconical forming mandrel Io has near its top surface a gradation of 10 ". The drawn-up blank 8 is with its upper end 8 'over the top surface of the forming mandrel extended beyond. By means of the heating device 12, the edges projecting over the top surface (end 8 ») are opened the top surface of the forming mandrel is folded over, with a gradation 8 »being created at the edge according to FIG. 1b. To complete the Capsule, the cover disk 16 is attached to the upper surface.

The figures 2a to 2e show the man from left to right

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position. The printed tape B is advanced in the direction of arrow F. Kach figure 2a is divided in Kähe of the forming mandrel 1o voa band B by a cut in the transverse direction at B ^{1 of} the blank 8. By any known means, e.g. B. by a suction device, the blank 8 is rotated by 90 ° and comes, as can be seen in Figure 2b, in the position at right angles to the direction of passage. The edge 9 is cut into an arc-shaped edge 9 ', which corresponds to the conicity of the forming mandrel 1o. Then the blank 8 is brought with its glued edges 6 onto the forming mandrel 1o and the end 8 "protruding from the top surface of the truncated cone is turned over, whereby the gradation 8 "arises (FIG. 2d). After applying the cover disk 16, the finished capsule 19 shown in FIG. 2e is obtained.

The stacked capsules 19 become the encapsulation system in a known manner led · where it is due to the slight gradation of 8 " can be picked up or grasped very easily at the edge of the top surface

In the embodiment of Figure 3 are located on the Capsule wall wart-like bulges 2o through which a annoying hanging of the stacked capsules is avoided. The number of bulges 2o (gate jumps or recesses) can be anything. For example, a capsule with three bulges, another with four bulges, another be provided with five bulges. Furthermore, capsules with even more bulges or an irregular distribution can be used manufacture the same.

When the blank is placed on the forming dome »takes it adopts its shape and contracts through the action of heat, with it extending over the relief surfaces of the forming mandrel tense.

In the embodiment of FIG. 4, the preliminary checks are closed

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Longitudinal webs 21 enlarged, longitudinal ribs can also be provided. This facilitates the introduction of air ζην automatic distribution to the hash »

The invention allows inexpensive bottle and container capsules can be made in practically one pass. ”No special operations are required for cutting to size the capsules and the printing of conical blanks. It will cover all commercial and administrative needs fulfilled, such as lower cost price, delicacy and correctness of the inscriptions or »imprints, accuracy of seal impressions and impossibility of re-use you can use thinner tapes than before.

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Claims (1)

Claims 1 ο Process for the production of coating capsules for closures of bottles and containers, with the cover capsule made of heat-shrinking mono-oriented material consists, characterized in that a band of heat-shrinking mono-oriented plastic is sighted the mono-orientation handles it with labels and / or motifs printed and cut into sections, then rolled up like a truncated cone, on the tapered .Seite of the truncated cone turned inwards to form a flat edge and sealed with an outer cover plate 2ο Method according to claim 1, characterized in that After cutting at the end of the supplied tape, the tape sections are rotated by 90 ° to the unwinding direction and the edge then directed towards the shaping mandrel in the shape of a circular arc is cut. 3ν method according to claim 1 or 2, characterized in that that mono-oriented polyethylene or polyvinyl chloride is used as the heat-shrinking tape material » 4. The method according to claim 1 to 3, characterized in that a frustoconical Pormungsdorn is used, which has an all-round gradation 01ο ¹ ) on the top surface and that the heat radiation at an angle of about 45 ° to the over the top surface of the lormungsdorns protruding part (8 ¹ ) of the blank aligns. 5. The method according to claim 1 to 4, characterized by the use of a forming mandrel, the outer surface of which is a Has profile. 6. Cover capsule as the actual closure, as protection of the closure or as a decorative capsule made of heat-shrinkable mono-oriented material, characterized by a rotary 309886/0475 -1ο- tion jacket (8) about an axis running perpendicular to the direction of the mono-orientation, one end (8 ¹ ) of the jacket striking in a ring in a plane inwards and closed by a cover plate attached to it 7ο coating capsule according to claim 6, characterized by an all-round gradation (8 ") below the cover plate (16). 8ο coating capsule according to claim 6 or 7, characterized through an outer profile on the jacket " 9ο coating capsule according to claim 8, characterized in that that the outer profile has the 3? shape of wart-like bulges (2o), webs (21) or grooves » 30988S / 047S ORIGINAL