MXPA99011513A - Flexible pouch and dispensing nozzle assembly - Google Patents

Abstract

A sachet/pouch assembly comprising a sachet/pouch body portion (1) containing liquid/semi-liquid/viscous product and obtained of deformable material, a nozzle assembly (2) secured to the sachet/pouch body portion (1) and comprising a nozzle having an opening for communication with the inside of the body portion and means (7) for opening and closing the nozzle as and when desired.

Description

ASSEMBLY OF FLEXIBLE BAG AND DESPACHADORA NOZZLE DESCRIPTION OF THE INVENTION The present invention relates to an improved bag / bag system, and in particular to a reclosable bag / bag system which can retain the contents therein under a stable storage condition and free of microbial contamination, hygienic after each use of the content thereof. The bag / bag system is for private use as a container for toothpaste, and has small dimensions and a closure. Currently, small packages of 1-50 grams of liquid products are provided, such as toothpastes, shampoos, sauces, tomato sauce, etc., in the form of bags / sacks. Such conventional bags / bags are basically obtained from plastic / "poylíned" materials and are sealed at all their ends. In order to use the contents of such s and bs, the user requires cutting a portion of the bag / sac and then dispensing the contents from this opening formed in the bag / bag. However, such sacks / pouches with encionales do not have any means of reclosing, and thus once the sack / pouch is cut to open for its ap ication / use, the contents have to be either consumed at that time, or the rest of the content is left under unhygienic conditions, exposed to potential microbial contamination. On the other hand, in the absence of any means to reclose cash, in such sacks / bags with encionales, most of the content is lost by being stuck through the opening, resulting in a loss of expensive product formulation content in the bag / bag. It is important, due to such problems of reclosing the bag / sack that it is not convenient to use sacks / bags with encionales as carrier packets once the sack / bag is cut to open for its first use. In addition to the above, cutting and opening the conventional bag / bag very often resulted in an inadequate opening in the bag / bag, the opening was either too wide resulting in a loss of expensive product formulation, or too narrow causing problems in the dispatch of the content through it for its use. The toothpaste containers currently existing in the market tend to take the form of a laminated sheet which is sized to form a tubular structure. This process is carried out on a large scale and involves reasonably complicated technical procedures. These technicalities and the cost involved make it impossible to produce small-sized laminated toothpaste containers efficiently, effectively and at a low unit cost. On the contrary, local manufacturing is prohibitive due to the cost of the machinery necessary to manufacture such containers. An alternative toothpaste container takes the form of an aluminum tube. The production processes allow aluminum tubes to be made with small dimensions suitable for export to developing countries. and protruding However, such tubes are only possibly suitable for certain types of toothpaste, and are not suitable for toothpastes, which tend to harden rapidly due to their reaction with aluminum. In any case, it has been known that the release of gas from the gel-like paste occurs. It is therefore the basic object of the present invention to provide an improved bag / pouch system which can provide convenient opening and closing of the bag / pouch for repeated use / appli cation of the contents therein as and when desirable, and also maintain pollution-free, hygienic and effective conditions for the product stored within the same. Another object of the present invention is to provide an improved bag / pouch system for packaging small sizes of products 1 i qui do s / s emi 1 i qu i s s i s as dental preparations, for hair, skin including toothpastes, shampoos, skin lotions, etc. , and also for the packaging of sauces, tomato sauce, purées, etc. , but in particular for toothpastes, which - retains the pr ope of the s / characteristics of the products stored therein, even after repeated use of the contents of the product. same.

Another object of the invention is to provide a more effective and efficient toothpaste container e2L which is more suitable to be manufactured in, and optionally exported to, developing countries. Yet another object of the present invention is to provide an improved bag / pouch system which serves as an effective package for making small-sized packages of say 1-50 grams of products 1 i qui do s / s emi 1 i qui do s / vi scosos as described here at affordable prices, and which serves as a stable and free storage carrier package of effective hygienic amination for such products. Another object of the present invention is to provide an improved bag / pouch system which can provide a user-friendly and controlled dispenser, convenient to the product thereof for purposes of u s / i / a c ation. Thus, according to a first aspect of the present invention, an improved bag / bag system comprising; a bag / bag body portion that contains products that are made of a deformable material; a nozzle assembly secured to the bag / bag body portion and comprising a nozzle having an opening for communicating with the interior of the bag / bag body portion and means for opening and closing such an opening when and as desired . According to a further aspect of the invention, a resealable toothpaste container is provided, comprising two laminated metallized sheets, a neck and closure means, wherein the edges of the sheets laminated to me. they are sealed to form the sack, the sack has a neck inserted inside, and that comes out of, one end of the sack, wherein the neck has an opening defining a hole through which the toothpaste of the sack can pass and wherein the closure means is removably fixed at the distal end of the neck to close the opening. According to a further aspect of the invention, there is provided a packaged toothpaste composition comprising a toothpaste composition, which can be a toothpaste composition made on the basis of silica or calcium carbonate, packaged in a toothpaste container or bag / bag as described above. Also contemplated is a packaged dental or dental composition which is a liquid, and packaged in a toothpaste container or bag / bag as described above. According to another aspect of the invention, a bag / bag assembly for containing liquid or viscous compositions such as shampoos, skin creams and lotions, sauces, tomato sauces and purees is provided. The closure means may comprise a stopper having an elongated cylindrical member and the opening is dimensioned to receive the elongated cylindrical member as a friction fit for reclosing the bag after use. The closure means will be integrally molded with the neck portion, providing a sealed unit, however, when a first use of the container is made, the closure means abruptly break from the neck portion, the contents are dispensed, the closure means are they invert, and after that the elongated member of the closure portion can close the neck by means of a friction adjustment. With the improved bag / bag described above and / or the toothpaste container, the nozzle assembly can be obtained as a single piece, with the means for opening the mouth of the mouthpiece being provided in the form of a lid. 'f 1 ip top "connected to the nozzle. Alternatively, the nozzle assembly nozzle can comprise two pieces comprising the nozzle and a cover adapted to be releasably secured on the nozzle p a2r to facilitate opening and closing of the nozzle orifice. The cap can be releasably secured with respect to the nozzle by either providing cooperating threads on the outside of the nozzle and the inside of the cap or the cap can be adapted to be releasably press fit with respect to the nozzle. This bag system, whose use is convenient for toothpaste container, is economical and easy to manufacture with readily available equipment. The sheet typically has a thickness in the region of 40-90, preferably 45 microns, this being substantially thinner than the thickness of a standard toothpaste tube, which is usually about 300 microns. Preferably, the laminate is a polyester, such as PET, or is a polyolefin such as polypropylene, or polyethylene, but can be made of any material that can be heat sealed and provide an adequate barrier against oxygen, water and loss flavor. A particularly preferred laminate material comprises a layer of 12 microns of PET, a layer of 9 microns of aluminum, and a layer of 60 microns of a low density polyethylene, although the materials used can preferably comprise a layer of 5 microns. 15 microns of PET, a layer of 5-15 microns of aluminum, and a layer of 40-80 microns of low density polyethylene. However, and depending on the final use of the bag / bag system, the bag / bag body portion can be obtained from any suitable deformable material such as a monolayer and / or multi-layer substrate / paper substrate. 1 depending on the content to be packed and the final use / app 1 required.

Advantageously, the edges of the laminated metallized sheets are heat sealed around their periphery. It is preferred that the bag / bag system is one which does not have a corner. In a preferred embodiment, the two laminated metallized sheets are constituted by a single laminated metallized sheet bent backwards on itself; therefore it is not sealed along an edge. For this, for example, when the bag / bag system has a rectangular shape, it is sealed, preferably heat sealed along three edges. The nozzle assembly can be obtained from a high density polyethylene, low density polyethylene or a similar polymeric material. Preferably, the orifice of the nozzle may be provided with a tamper proof seal to show its condition f f ~ e be unused. At the time of first use of the contents of the bag, the seal is perforated to create such a nozzle orifice which can then be reclosed after each use or by the means for opening and closing the orifice of the nozzle.

An additional advantage of the bag system according to the invention which has on the standard toothpaste tubes is that, due to its production process, it can be easily produced either as single units or in sheets or strips using known techniques. , each bag can be detached from your partner. The production equipment is more readily available, and can be easily adapted as necessary, and there are several ways in which the bags can be manufactured efficiently, for example by filling each bag with paste from the neck end before inserting the neck of the bag. closing, or filling the bag from the opposite end to the closure before heat sealing the edges at that end. The dentifrices that can be used in packaged compositions of the present invention may comprise optional conventional ingredients such as pharmaceutically acceptable carriers such as starch, sucrose, water or water 1 coho 1 systems, etc. Small amounts of surfactants may also be included, such as anionic, nonionic, cationic and zwitterionic, or amphoteric surfactants, usually at 1-2% levels. They may also preferably comprise particulate abrasive materials such as silicas, aluminas, calcium carbonates, di-cyclophosphates, calcium pyrophosphates, hi-oxy oxylates, triamotephosphates, insoluble hexame taphosphates, etc., including agglomerated particulate abrasive materials usually in amounts between 3 and 60% by weight. A preferred embodiment of packaged composition according to the invention is one in which the dentifrice is not in the form of a gel. In addition, the packaged compositions may comprise humectants such as glycerol, sorbitol, propylene glycol, xylitol, lactitol etc. , usually in amounts ranging from 10-80% by weight Binders and thickeners such as sodium carboxymethylcellulose, xanthan gum, gum arabic, etc. can also be included, as can synthetic polymers, such as polyacrylates and acrylic polymers. rb oxi vi ni 1 or such as Carbopol7, normally at levels of 0.1-2% Flavors such as peppermint and spearmint oils can also be included, as well as preservatives, bulking agents, coloring agents, adjuster agents. of pH, sweetening agents, etc., usually at levels of 0.5-3% Antibacterial agents can also be included such as Triclosan, chlorhexidine, copper-zinc- and salts of this or as zinc citrate, sodium citrate zinc and stannous pyrophosphate, extract s angu i na r i na I t r oni gives z or 1. Other examples of antibacterial agents are quaternary ammonium compounds such as cetylpyridinium chloride; bisguanides such as chlorhexidine digluconate, hexetidine, octenidine, aldxidine; halogenated bisphene compounds such as 2, 2'-me t i 1 enb i s - (4-cl or o- 6 -b r orno f enol). Polymeric compounds which can improve the supply of active ingredients such as antibacterial agents can also be included. Examples of such polymers are copolymers of pyrimidium with maleic anhydride and other similar supply enhancing polymers, such as those described in DE-A-3, 942, 643 (Colgate). In addition, anti-inflammatory agents such as ibuprofen, f 1 u r b i p r o f e no, aspirin, indomethacin etc. , can also be included. Anti-caries agents such as tin and sodium fluoride, ammonium fluorides, monosodium phosphate, casein, plaque buffers such as urea, calcium lactate, calcium phosphate, strontium polyacrylates can also be included . Other optional ingredients include vitamins, vitamin C, and plant extracts. Additional agents such as potassium citrate, potassium chloride, potassium tartrate, potassium bicarbonate, potassium oxalate, potassium nitrate, as well as strontium salts may also be included. Shock absorbers and salts for buffering the pH and ionic strength of the compositions may also be included. Liposomes and other encapsulates can also be used to improve the supply or stability of active ingredients. In addition, the packaged oral compositions may comprise anticalculus agents such as alkylated pyrophosphates, polymers containing h ip or f or s, organic phosphonates, f or s or f i c t r a t s, etc. In addition, packaged compositions may comprise functional biomolecules such as b a c t e r i o c i n a s, antibodies, enzymes, etc. Other optional ingredients that can be included are, for example, bleaching agents, such as peroxide compounds for example, for example potassium oxides, effervescent systems such as citric acid / sodium bicarbonate systems, color changing systems, etc. * The nature of the invention and its objects and advantages will be more obvious from the following description made in relation to the exemplary modalities not "limiting the improved bag / bag system of the invention as with the appended figures. Three forms of toothpaste sack, each constructed in accordance with the invention, will now be described in detail, by way of example, with reference to the drawings, in which: Figure 1 is a side view of the first form of the toothpaste sack, Figure 2 is a side view of the first form of sack illustrating how the socket is used to close the sack after use, Figure 3 is a side view of a second sack form of toothpaste; Figure 4 is a schematic illustration of an improved bag / bag according to the invention; and Figure 5 is a schematic view of the nozzle assembly used in the improved bag / bag of Figure 4. With reference to the drawings, Figure 1 shows a toothpaste container comprising two laminated rectangular sheets which are laminated to each other. heat seal at three of its edges to form a sack 1. The sack 1 is filled with toothpaste before the plastic neck 2 is inserted into its open end lb, which is then sealed around the neck. The neck 2 is formed with a central opening 2a to define an opening in the bag 1 through which the toothpaste can pass. A socket 3 is releasably fixed to the neck 2, the outlet emerges out of the bag 1. The socket 3 comprises a base 4 and an elongated cylindrical member 5 that projects outwardly therefrom. The diameter of the elongated cylindrical member 5 is slightly smaller than the diameter of the opening 2a in the neck 2 of the bag 1 such that the opening is capable of receiving the elongated cylindrical member as a friction fit when the socket 3 is turned down, as can be seen in Figure 2. The base 4 of the outlet 3 is released from the neck 2 of the bag 1 by a simple movement of breaking, thus exposing the opening 2a to allow the toothpaste to pass. Once the required amount of paste passes through the opening 2a, the bag 1 can be released by inserting the cylindrical elongated member 5 of the socket 3 into the opening.The elongated cylindrical member 5 has a flange 6 which exits towards outside located at a predetermined distance from its distal end, to prevent the elongated cylindrical member from being inserted through the opening 2a beyond a predetermined length.The toothpaste sack shown in FIG. Figure 3 is a modified version of the bag of Figure 1, so that the reference numbers will be used for similar parts, and only the modifications will be described in detail. In this way, the main modification is to modify the neck 2 of the embodiment of Figures 1 and 2, to provide a threaded opening 2 'and to replace the socket 3 with a screw cap 7.

In each of the embodiments, the laminated sheets are preferably made of metallized polyester like PET, or polyolefins such as polypropylene or polyethylene, with the preferred metal being aluminum. However, other known compounds are also suitable, taking into account that they may be capable of being heat sealed to provide an adequate barrier to water and oxygen and that they may also provide a barrier against flavor loss. A single laminated metallized sheet, folded back on itself can constitute the two laminated metallized sheets. In this case, only two edges, will need to be heat sealed before inserting the neck 2. The dimensions of the laminated sheets are easy to keep the cost of production of the toothpaste sacks to a minimum, with which are the economic sacks for export to developing and outstanding countries. In another embodiment, Figure 4 shows the rectangular bag / bag body portion BP with the nozzle tip ("NA") secured in a leak-proof manner to the bag / bag body portion. Serving. Bag / bag body (BP) is sealed at all its ends as is evident from the seal margin (SM) on the sides. The nozzle opening (NO) (Figure 5) communicates with the interior of the bag / bag body portion which contains the liquid / semi-liquid / viscous product. Preferably a seal (S) is provided in the opening of the nozzle to evidence the unused condition, against alterations of the bag / bag system. A lid (C) is provided threaded onto the nozzle to releasably close the nozzle opening. For the purpose of the first use of 'the contents of the bag / improved bag, the cap (C) is first screwed on the nozzle and then, the seal (S) is perforated, and the required amount of packing is dispensed by pressing the deformable body portion of the bag / pouch. Then, the rest of the contents of the sack / bag is maintained in a stable storage condition free of microbial, hygienic contamination by replacing the layer (C) on the nozzle. For each subsequent use, the lid (C) is unscrewed to allow the product to be dispensed through the nozzle, and then again covered to close the nozzle opening and retain two contents under hygienic conditions. However, in the case - that a seal membrane is not provided, the lid (C) can simply be released from the nozzle and the contents can be dispensed through the nozzle opening. After this, the lid (C) is once again screwed onto the nozzle to store the remaining contents under stable, hygienic storage conditions for subsequent uses. After this, for each subsequent use, the cap (C) is released from the b o.qu i 11 a and the nozzle subsequently recaps as mentioned above. "The sack / bag body portion may be r.tangular as shown in the embodiment discussed in Figures 4 and 5, or it may have any other geometry and proper geometric configuration. Likewise, the nozzle assembly can also have various shapes and configurations depending on the bag / bag desired, the content within it and the desired end use / application. In one of the embodiments, the laminated sheets are preferably made of metallized polystyrene such as PET, or polyolefins such as polypropylene or polyethylene, with the preferred metal being aluminum. However, other known compounds are also suitable, taking into account that they are capable of being sealed by heat to provide an adequate barrier against water and oxygen and also to provide a barrier against loss of flavor. In this way it is possible by means of the improved bag / bag system of the invention to provide a sack / bag package with stable storage free of microbial, hygienic contamination for products 1 /. I saw them. It is important, that the bag / bag system of the invention can provide controlled dispensing of the product through the opening of the nozzle and also provide a convenient closure of the nozzle opening after each use in order to ensure storage free of hygienic contamination of the remaining bag / bag contents until subsequent use is desirable.

Claims (15)

1. Sack / bag assembly comprising a sack / bag body portion containing product 1 which is made from a deformable material, a nozzle assembly secured to the bag. Bag / bag body portion and comprising a nozzle having an opening communicating with the interior of the body portion and means for opening and closing the nozzle as and when desired.

2. Sack / bag assembly that can be reclosed according to claim 1, which is a "tooth paste container" comprising two laminated metallized sheets, closure means and neck, wherein the edges of the sheets Metallized laminates are sealed to form a sack, the sack has a neck inserted inside, and exits out of, one end of the sack, wherein the neck has an opening defining a hole through which the toothpaste of the sachet can pass. bag, and wherein the closure means releasably attaches at the distal end of the neck to close the opening.

3. Container as claimed in rei indication 2, wherein the closure means comprises a socket having an elongated cylindrical member, and wherein the opening is dimensioned to receive the elongated cylindrical member with a friction fit to return to Close the bag after use.

4. Container as claimed in claim 2, wherein the closure means comprises a screw cap which can be coupled with a complementary threaded portion of the neck dell.

5. Container as claimed in any of the re iv indications 2 to 4, wherein the edges of the laminated metallized sheets are sealed by heat.

6. The holder as claimed in any of the above indications 2 to 5, "wherein the two laminated metallized sheets are constituted by a single laminated metallized sheet folded back on itself.

7. Container as claimed in any of the preceding claims, wherein the nozzle has an evidence seal against tampering.

8. Container as claimed in any of the. previous claims, wherein the bag / bag is sealed around the periphery.

9. Container as claimed in any of the above indications, in which the bag / _b olsa has no corners.

10. Container as claimed in any of the foregoing claims, in which the bag / bag has a capacity of 1-50 grams of material.

11. Container as claimed in any of the preceding claims, wherein the closure means comprise a cover "f 1 i p top" fixed to the nozzle.

12. Packaged dentifrice composition comprising a container according to any of the preceding claims containing a toothpaste composition.

13. Packed composition according to claim 12, wherein the composition has a base of silica or calcium carbonate.

14. Packed composition according to claim 12, wherein the composition is a liquid.

15. Packed composition comprising a container according to any of the preceding claims, containing shampoo, cream or lotion for skin, sauce, tomato sauce, or puree, the container comprises two sheets of rolled metal, and neck and closure means, where the edges. of the laminated metallized sheets are sealed to form a sack, the sack has a neck inserted into, and exiting from, one end of the sack, wherein the neck has an opening defining a hole through which it can passing the composition of the bag, and wherein the closing means are releasably fixed at the distal end of the neck to close the opening.