EP1075229B1 - Bag for packaging liquid substances for animal artificial insemination - Google Patents

Abstract

The invention concerns a bag (1) for packaging liquid substances for animal artificial insemination, consisting of two thermoplastic sheets soldered by a weld run (2) defining a pouch (3), along a closed generally rectangular marking defining two short sides (x) and (x') and two long sides (z) and (z') when the bag is empty, and whereof one of the short sides (x) has a break, the weld run constituting starting from said break a filling passage (4) defining in said thermoplastic sheets a filling portion (17), the other of the short sides (x') has a break, the weld run (2) constituting starting from said break a drawing passage (9), defining in said thermoplastic sheets a drawing portion (11) Preferably, at least one of said thermoplastic sheets has in the drawing portion a peel-off zone (12).

Description

The present invention relates to a liquid packaging sachet for artificial animal insemination, in particular for porcine and equine species.

This type of sachet, also known as sachet-dose, is well known in the technical and was the subject in particular of FR-B-2 667 504 and EP-A-718 191.

In the above bags, the same opening is used for filling and emptying the bag. The bag is filled using a filling nozzle which is enclosed in the filling duct when the nozzle enters the bag. She slightly deforms the introduction conduit of the filling conduit. Now it is the same conduit which is intended to receive the body of the insemination probe. The conduit having already been subjected to the constraints of the filling nozzle, it is sometimes observed poor behavior of the probe in this conduit.

The present invention overcomes this problem and provides a packaging bag. of animal semen consisting of two sheets of thermoplastic material welded by a weld bead defining a pocket, following a generally closed path rectangular defining two short sides and two long sides when the bag is empty, and one of the short sides of which has an interruption, the weld bead determining from this interruption a filling duct, defining in said sheets of thermoplastic material a filling part, characterized in that the other of said short sides has an interruption, the weld bead determining on the basis of said interruption a withdrawal duct, defining in said sheets of thermoplastic material a withdrawal part.

In the sachet of the invention, after filling the sachet with its content, the filling pipe will be welded for tight and permanent closure. On the other side, the withdrawal conduit, intended to receive the probe to be inseminated, will be closed by a welding.

Difficulties related to opening the sachets, which cause problems during their use and often require the use of a tool or an object, are however frequently encountered.

To overcome these problems, the Applicant has developed a so-called sachet "peelable bag", described in FR 2 750 399, which can be opened simply and reliable, without having to use any tool or object. This sachet is particularly adapted to contain animal semen.

• remplir le sachet de liquide avec une aiguille,
• après ouverture de la soudure pelable, soutirer le liquide à l'aide de la sonde à inséminer.

The peelable sachet described in the above-mentioned FR 2 750 399 has a single neck which serves two functions:

• fill the liquid bag with a needle,
• after opening the peelable solder, draw off the liquid using the insemination probe.

Such a sachet is extremely practical but it nevertheless has a slight drawback which is to cause the capillary action of the liquid on the walls of the neck when after filling, the filling needle is removed. This stain, more or less important, affects the quality of the peelable weld.

To overcome this defect, the Applicant has considered carrying out the so-called "welding". peelable "from the factory drawing line and welding the filling line to a packaging machine. This last weld being made not on peelable but directly on virgin film, offers much less difficulty to be realized.

In a second particularly advantageous embodiment of the present invention, it is therefore proposed a seed packaging sachet animal made up of two sheets of thermoplastic material welded by a cord of welding delimiting a pocket, following a generally closed path rectangular defining two short sides and two long sides when the bag is empty, and one of the short sides of which has an interruption, the weld bead determining from this interruption a filling duct, in which the other of the said short sides has an interruption, the weld bead determining starting from said interruption a draw-off duct, defining in said sheets of thermoplastic material a portion of racking, said bag being characterized in that at least one of the two said sheets of thermoplastic material has a peelable area in the racking part.

According to a provision of the invention, said peelable area includes a sealing and peelable material, this material possibly being, for example, a wax.

The withdrawal duct can be extended by a flare.

According to an advantageous arrangement of the embodiment of the sachet of the present invention with the peelable tapping weld, the two sheets of material thermoplastic have an offset, for example about 2 to 3 mm, one by with respect to the other in said withdrawal part.

According to another provision of the embodiment of the sachet of the invention with the peelable filling solder in which it contains a liquid, said sachet has been subjected to sealing in a sealing zone inside said peelability zone, in the vicinity of the withdrawal part of the withdrawal duct, substantially transversely to the axis thereof.

The sealing area can then have, in cross section, the shape of a triangle or a returned V.

Furthermore, in the sachets used so far, the identification of the doses which are contained posed problems. In the case for example of semen doses, identification was carried out either by means of a colored label affixed to the bag containing said seed, or by adding a colorant to the seed. Such processes disadvantages, in particular, the risk of detachment of the label or the addition of a colorant which could affect the quality of the seed, etc.

The present invention provides a sachet which overcomes these drawbacks identification, characterized in that it comprises on part of the sheets thermoplastics coloring. Said coloration defines part of coloring. The coloring part may include an identification.

If the sachet contains semen (semen) of pork, a color will be assigned to each breed of pig or genetic type and this will be that of the coloring part. In such a case, the coloring of the coloring part identifies the breed of pig or the genetic type concerned.

One can also provide on a part of the thermoplastic sheets a zone of marking, separate or not from the coloring part. The marking area can include identification by marking, for example a drawing.

Advantageously, the identification by marking according to the invention is carried out by so as to appear by transparency.

If the sachet contains semen (semen) of pork, the area marking may thus include identification by marking the breed of pig and / or of the genetic type concerned.

The sachet according to the invention can also be such that at least one of the two sheets of thermoplastic material has in the filling part a zone of peelability.

According to a particularly advantageous embodiment of the invention, the liquid usable for artificial inseminations is animal semen, a medium or a diluter.

The invention then provides a sachet characterized in that it contains a substance biological liquid usable for artificial inseminations.

The substance usable for artificial inseminations is for example chosen from animal semen, in particular pig semen, media and diluents.

• la Figure 1 est une vue en coupe transversale d'un sachet selon l'invention, non scellé extrait d'une bande de sachets;
• la Figure 2 est une vue en coupe transversale d'une variante "pelable" de sachet selon l'invention, non scellé extrait d'une bande de sachets;
• la Figure 3 est une vue en coupe transversale du sachet de la Figure 2 dont le conduit de soutirage a été scellé;
• la Figure 4 est une vue en coupe transversale du sachet de la Figure 2 dont le conduit de soutirage a été scellé avec une forme en variante de la zone de scellage.

The invention will now be described in more detail and other advantages of it will appear more clearly in the light of the description below, given solely by way of example and made with reference to the appended drawings in which:

• Figure 1 is a cross-sectional view of a sachet according to the invention, unsealed extracted from a strip of sachets;
• Figure 2 is a cross-sectional view of an alternative "peelable" bag according to the invention, unsealed extracted from a strip of bags;
• Figure 3 is a cross-sectional view of the bag of Figure 2, the withdrawal conduit has been sealed;
• Figure 4 is a cross-sectional view of the bag of Figure 2, the withdrawal conduit of which has been sealed with an alternative form of the sealing zone.

The sachet 1 for packaging the biological liquid substance of the invention consists of two sheets of thermoplastic material welded by a bead of weld 2 delimiting a pocket 3, following a generally closed path rectangular defining two short sides x and x 'and two large sides z and z' when the sachet is empty, and one of said short sides x has an interruption, the cord welding 2 determining, starting from said interruption, a filling duct 4, defining a filling part in said sheets of thermoplastic material 17, characterized in that the other of said short sides x 'has an interruption, the weld bead determining from said interruption a withdrawal duct 9, defining in said sheets of thermoplastic material a withdrawal part 11.

The filling duct 4 is extended by a flare or cone centering introduction 5.

Substantially equidistant holes 6 are provided near the two edges longitudinal of the strip, outside the line formed by the weld bead. These holes are used to drive the strip of thermoplastic material and its support on a packaging machine.

Welding zones 7 and 8 are provided to keep the two sheets of thermoplastic material and avoid their separation in the device of the packaging machine.

The withdrawal duct 9 is extended by a flare or introduction cone centering 10.

According to the present invention, after filling the sachet with its contents, the filling pipe is welded for tight and permanent closure. Welding 16 can be located either above or below (in phantom) of the filling 4. Make sure that the liquid level is high enough in the filling duct to avoid any presence of air. The welding resistance is composed of two welding zones. The top of the liquid column is between the two solder resistors. Therefore, the lower welding is carried out on the liquid column, and the upper weld prevents the liquid residue from dispersing outwards, the remainder remaining trapped between the two resistances.

According to an advantageous embodiment of the sachet of the invention, at least one of the two sheets of thermoplastic material has in the withdrawal part a peelability zone 12, obtained by depositing a sealing and peelability material, such as wax.

The sealing and peelable material is locally melted in the sealing 13. The cross section of the sealing zone 13, has, in Figure 3, a triangle shape and in Figure 4, an inverted V shape.

To open the sachet, the operator manually separates the two sheets of thermoplastic material. The bag can thus be opened easily in the desired area, delimited by the peelability area and the shape of the electrode welding. A probe or a tube can then be introduced into the opening with a satisfactory guidance.

According to one embodiment of the invention, part of the sheets thermoplastics comprises a coloring, defining a coloring part 14, and a marking area 15. The marking area 15 includes a drawing (not represented) on which appears transparently the breed concerned.

According to a provision of the invention not shown, at least one of the two sheets of thermoplastic material has in the filling part (17) a peelable area.

Those skilled in the art will understand that although the invention has been described and illustrated for particular embodiments, many variants can be envisaged while remaining within the framework of the invention as defined in the appended claims.

Claims (21)

1. A pouch (1) for packaging liquids for artificially inseminating animals, comprising two thermoplastics material films welded together by a weld (2) delimiting a pouch (3) along a closed path of generally rectangular shape defining two shorter sides (x) and (x') and two longer sides (z) and (z') when the pouch is empty and one of which shorter sides (x) is interrupted, the weld defining from said interruption a filler passage (4), defining a filler part (17) in said thermoplastics material films, characterized in that the other shorter side (x') is interrupted, the weld (2) defining from said interruption a drain passage (9) defining a drain part (11) in said thermoplastics material films.
2. A pouch according to claim 1, characterized in that at least one of the two thermoplastics material films has a peelable area (12) in the drain part (11).
3. A pouch according to claim 2, characterized in that the peelable area includes a sealing and peelable material.
4. A pouch according to claim 3, characterized in that the sealing and peelable material is wax.
5. A pouch according to any of claims 1 to 4, characterized in that the drain passage is extended by a flare (10).
6. A pouch according to any of claims 1 to 5, characterized in that said two thermoplastics material films are offset relative to each other in the drain part.
7. A pouch according to claim 6, characterized in that the offset is approximately 2 to 3 mm.
8. A pouch according to any of claims 1 to 7 containing a liquid, characterized in that it has been sealed in a sealing area (13) within said peelable area, in the vicinity of the drain part of the drain passage, substantially transversely to the axis thereof.
9. A pouch according to claim 8, characterized in that the sealing area has a triangular shape in cross section.
10. A pouch according to claim 8, characterized in that the sealing area has an inverted V-shape in cross section.
11. A pouch according to any of claims 1 to 10, characterized in that part of the thermoplastics films constitutes a coloured part (14).
12. A pouch according to claim 11, characterized in that the coloured part includes an identifier.
13. A pouch according to any of claims 1 to 11, characterized in that part of the thermoplastics films constitutes a marking area (15).
14. A pouch according to claim 11, characterized in that the marking area (15) includes an identification marking.
15. A pouch according to claim 14, characterized in that the identification marking is adapted to be seen through the film, which is transparent.
16. A pouch according to any of claims 1 to 15, characterized in that at least one of the two thermoplastics material films has a peelable area in the filler part (17).
17. A pouch according to any of claims 1 to 16, characterized in that it contains a biological liquid that can be used for artificial insemination.
18. A pouch according to claim 17, characterized in that the liquid usable for artificial insemination is chosen from animal semen, media and diluting agents.
19. A pouch according to claim 18, characterized in that the liquid is pig sperm.
20. Use of a pouch according to claims 11 and 19 in which the colour identifies a breed of pig.
21. Use of a pouch according to claims 14 and 19 in which the identification marking identifies a breed of pig.

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