FR3094195A1 - Packaging process for cleanroom wipes - Google Patents

Abstract

[In summary, the invention relates to a process for packaging (1) cleaning wipes (22) intended for use in a clean room to clean surfaces. The packaging process (1) thus makes it possible to store and impregnate the cleaning wipes (22) in a cleaning and / or disinfectant solution (21) and to store them effectively in a resealable packaging bag (20), advantageously self-supporting in order to facilitate its handling. The reclosable packaging sachet (20), the cleaning wipes (22) and the solution (21) in which they are optionally embedded in said reclosable packaging sachet (20) collectively form a cleaning assembly (2) particularly suitable for working in clean room and limiting the risk of contamination.

Description

Process for packaging cleanroom wipes

The technical context of the present invention is that of the cleaning and disinfection of clean rooms. More particularly, the invention relates to a process for packaging several cleaning wipes intended for use in environments of the clean room or clean room type. Furthermore, the invention also relates to a cleaning assembly for such clean rooms.

In the state of the art, and more particularly in the field of cleaning in sensitive environments such as, for example, clean rooms, cleaning wipe packaging assemblies are known comprising an impregnation tank into which the cleaning wipes are introduced. then which impregnation tank is then filled with a cleaning and/or disinfectant solution in order to saturate said wipes to make them suitable for cleaning and/or disinfecting devices and surfaces present in these sensitive environments.

In a known way, the use of an impregnation tank leads to placing it on a rolling cart in order to be able to transport the cleaning wipes drowned in the cleaning and/or disinfectant solution while limiting the risks of splashing and/or overflow. of said solution out of said impregnation tank.

Such packaging assemblies are thus cumbersome and impractical to use, because it is then necessary to move the trolley in sensitive environments with great care to limit the risks of splashing and/or overflow.

In addition, such a rolling cart represents an important vector of contamination because it can transport impurities from one place to another: it therefore requires meticulous and frequent decontamination in order to reduce the risk of pollution of these sensitive environments.

Furthermore, the use of an impregnation tank to pour the cleaning and/or disinfectant solution as well as to temporarily store the cleaning wipes thus impregnated with said solution is not optimal. Indeed, on the one hand the dosage of the cleaning and / or disinfectant solution is not easy in such an impregnation tank because the latter facilitates neither the pouring of the said solution, nor the measurement of the necessary volume of solution in relation to the number of cleaning wipes present in the tray; and, on the other hand, contact of the cleaning and/or disinfectant solution with the ambient air leads to evaporation of said solution which can be detrimental to the good conservation of the cleaning wipes and to the preservation of their effectiveness.

Finally, the particular field of clean rooms leads to requirements in terms of cleaning and/or disinfection of the order of a micrometer. As a result, the cleaning wipes used in the field of household cleaning are not suitable for such use in a clean room. The spaces available in clean rooms being few in number, this results in a space constraint which the known trolleys do not satisfy: there is therefore a need to propose a cleaning assembly which is at the same time compact, practical to use and which limits the risk of splashing and/or soiling during use in clean rooms.

An object of the invention is to provide a new method of packaging cleaning wipes as well as a new cleaning assembly for cleanrooms in order to at least largely solve the above problems and to further lead to other advantages.

Another object of the invention is to facilitate the impregnation of wipes with a cleaning and/or disinfectant solution in order to better meet the needs of users.

Another object of the invention is to more precisely control the volume of cleaning and/or disinfectant solution used to saturate the wipes, relative to the number of said wipes.

Another object of the invention is to reduce the risk of contamination of the clean room during the impregnation of the wipes.

According to a first aspect of the invention, at least one of the aforementioned objectives is achieved with a process for packaging several cleaning wipes, the packaging process comprising the following steps: (i) a step of selecting a number N of wipes, (ii) a step of choosing a resealable packaging bag according to the number N of wipes selected, (iii) a step of opening the selected resealable packaging bag, (iv) a step of depositing the N selected wipes in the selected resealable packaging pouch, and (v) a step of closing the resealable packaging pouch.

Thus, the packaging method in accordance with the first aspect of the invention makes it possible to do away with cumbersome impregnation trays and to dispose in the cleaning and/or disinfectant wipes in packaging sachets whose volumes can be adapted to the number of contained wipes. The packaging method in accordance with the first aspect of the invention thus makes it possible to facilitate the deposition and impregnation of the cleaning wipes, the latter being more easily transportable in a clean room, without risk of splashing and limiting the risks of contamination. Indeed, the packaging bag containing the wipes is initially closed, and possibly closed again when an optional solution is possibly introduced into said packaging bag.

Of course, the cleaning wipes used in the context of the invention are not those used in the field of household cleaning. These are ultra-clean and/or sterilized cleaning wipes in order to minimize the risk of introducing particles and/or bacteria into clean rooms during the implementation of the packaging process in accordance with the first aspect of the 'invention.

The packaging method in accordance with the first aspect of the invention advantageously comprises at least one of the improvements below, the technical characteristics forming these improvements being able to be taken alone or in combination:

– the packaging method according to the first aspect of the invention comprises a step of filling a solution into the resealable packaging bag. This advantageous configuration thus makes it possible to better saturate the cleaning wipes and to transport them easily in their sealed packaging bag. In addition, this configuration also makes it possible to limit the evaporation of the solution since the packaging bag is kept closed, thus increasing the shelf life of the cleaning wipes as well as their effectiveness. According to a first variant embodiment, the step of filling the solution in the packaging sachet is carried out before the step of depositing the N cleaning wipes in said packaging sachet. This first embodiment variant makes it possible to further reduce the risks of splashing and to better control the volume of solution poured into the packaging bag. According to a second variant embodiment, the step of filling the solution in the packaging sachet is carried out after the step of depositing the N cleaning wipes in said packaging sachet. This second variant embodiment makes it possible to better impregnate the cleaning wipes with the solution and facilitates the implementation of the impregnation step, a risk of contamination of the cleaning wipes by a utensil to soak them in the solution n ' was not necessary when depositing the cleaning wipes in the packaging bag beforehand. More particularly, this advantageous configuration of the packaging method in accordance with the first aspect of the invention makes it possible to better dose the solution poured into the packaging sachet and also to be able to prepare a tailor-made solution in order to meet the cleaning requirements and/or specific disinfection for use in clean rooms;

- the solution is of the type of a cleaning and/or disinfecting solution. By way of non-limiting example, the cleaning and/or disinfectant solution is in particular of the type comprising alcohol, chlorine and/or peracetic acid and/or hydrogen peroxide and/or aldehydes and/or quaternary ammoniums and/or amines. More particularly, the cleaning solution can be of the alkaline type and comprise for example sodium hydroxide or potassium hydroxide, or it can be of the chlorinated type and comprise for example sodium hypochlorite or with a pH acid. The disinfectant solution may include in particular glutaraldehyde and/or benzalkonium chloride and/or peracetic acid and/or laurylpropylene diamine and/or quaternary ammonium and or ethanol and or isopropanol. Optionally, the solution poured into the packaging bag may comprise a mixture of a first cleaning solution and a second disinfectant solution in order to respond effectively to the particular constraints of cleaning and/or disinfection in a clean room;

- the packaging method in accordance with the first aspect of the invention comprises a step of diluting a concentrated solution with a diluent, a mixture formed by the concentrated solution and the diluent forming the solution which is poured into the packaging bag during the filling step. The concentrated solution is advantageously a concentrated cleaning solution and/or a concentrated disinfectant solution, of the same type as the cleaning and/or disinfectant solution described above; and the diluent is an aqueous solution such as water or distilled water. The dilution step thus makes it possible to obtain a specific concentration and/or a specific volume of solution to be filled in the packaging sachet during the filling step, depending in particular on the number N of selected wipes contained in the packaging sachet. . This advantageous configuration of the packaging process in accordance with the first aspect of the invention thus makes it possible to respond to the specific challenges of cleaning clean rooms by allowing an operator of the packaging process to design a tailor-made solution before pouring it into the bag. conditioning;

- the packaging method in accordance with the first aspect of the invention comprises a step of locating a reference volume of the solution to be filled in the packaging sachet, the locating step being carried out before the step of filling the solution in the packaging bag. This advantageous configuration facilitates the implementation of the step of filling the solution in the packaging bag, to limit the risk of error during its realization, and thus to guarantee that the saturation of the cleaning wipes is optimal and reproducible. By way of non-limiting example, the identification step may consist of marking, on the resealable packaging bag, one or more reference volumes for filling the solution. According to a first variant embodiment, the marking can advantageously take the form of a graduated scale illustrated or engraved on the resealable packaging bag. According to a second variant embodiment, the marking can take the form of a label comprising indications on the reference volume of the solution to be filled in the packaging bag;

- the step of depositing the N cleaning wipes in the resealable packaging bag comprises a step of folding said wipes, so that one cleaning face of each cleaning wipe is folded outwards. This advantageous configuration makes it easier to take and use the wipe. According to a first alternative, the N cleaning wipes are folded individually and inserted individually into the resealable packaging bag. In this first alternative, the deposit step includes N folding steps and N insertion steps in the resealable packaging bag. According to a second alternative, the N cleaning wipes are first stacked on top of each other, the cleaning face of a first cleaning wipe being in contact with a surface opposite the cleaning surface of a second directly adjacent cleaning wipe , then the N cleaning wipes are collectively folded and collectively inserted into the resealable packaging bag. In this second alternative, the depositing step comprises a step of stacking the N cleaning wipes, a single step of folding the N cleaning wipes and a single step of inserting them into the resealable packaging bag;

- the resealable packaging bag is advantageously of the type of a double-walled and heat-sealed bag for optimal use in a clean room, an outer wall of the packaging bag. This advantageous configuration makes it possible to improve the rigidity and the resistance of the packaging bag;

- the resealable packaging bag comprises at its upper end a tear initiator on at least one side edge of said packaging bag and a laser pre-cut opening line in order to facilitate its opening;

- according to a first variant embodiment, the resealable packaging bag comprises a closing zip at an upper end, the opening step and the closing step being carried out by actuating the closing zip from one edge side to side of the resealable packaging bag. Advantageously, when the resealable packaging bag also includes the tear initiator and the laser pre-cut opening line, then the closing zip is located in an intermediate position between the pre-cut opening line and a lower base of the resealable packaging bag. According to a second variant embodiment, the closing step is carried out by thermal welding of the resealable packaging bag at a welding line located near its upper end. According to a third variant embodiment, the packaging bag is cumulatively closed by, on the one hand, a weld line located near its upper end and, on the other hand, it also comprises a closing zip located simultaneously below the welding line and the opening line in order to allow the packaging bag to be opened and closed during multiple uses;

- the resealable packaging bag is of the type of a self-supporting bag, the packaging method in accordance with the first aspect of the invention comprising a step of unfolding the self-supporting bag so that it stands stably on its lower base. The step of unfolding the self-supporting bag is carried out before the step of depositing the N wipes selected in the resealable packaging bag. Alternatively, the step of unfolding the self-supporting bag is carried out after the step of depositing the N wipes selected in the resealable packaging bag. In particular, the step of unfolding the self-supporting bag is advantageously carried out before the step of filling the solution into the resealable packaging bag;

- the self-supporting bag comprises, at its lower base, at least one side gusset making it possible to maintain an unfolded lower edge, the step of unfolding the self-supporting bag advantageously comprising a step of deploying the at least one side gusset of the bag freestanding. Advantageously, the self-supporting bag comprises two side gussets located respectively on each side edge of the self-supporting bag;

- the packaging method in accordance with the first aspect of the invention comprises a step of depressurizing the resealable packaging bag prior to the step of closing said resealable packaging bag, in order to limit the presence of air in the packaging bag, once closed. In a particularly advantageous manner, the depressurization step may consist of placing the said resealable packaging bag under vacuum;

- the packaging method in accordance with the first aspect of the invention comprises a final step of irradiating the resealable packaging sachet, said resealable packaging sachet containing the cleaning wipes and optionally the solution being exposed to gamma radiation. This advantageous configuration makes it possible to sterilize the packaging sachet and its contents in order to limit the risks of pollution of a controlled environment in which the packaging sachet is intended to be introduced and the cleaning wipes intended to be used. This advantageous configuration is particularly interesting in the context of use in a clean room, in which it is imperative to limit if not prevent any particulate and/or biological entry into the clean room: a step of irradiating the packaging bag thus makes it possible to reduce the risk of contamination.

According to a second aspect of the invention, there is proposed a cleaning assembly for a clean room, the assembly comprising means configured to implement the packaging method according to the first aspect of the invention or according to any one of its improvements.

In particular, the means comprise (i) a resealable packaging sachet and (ii) a plurality of wipes placed in the packaging sachet.

The cleaning assembly according to the second aspect of the invention thus makes it possible to propose a more efficient alternative to the rolling cart and making the impregnation of the cleaning wipes, their conservation and their use more efficient and easier in a controlled environment such as in a clean room. In addition, the particularity of the cleaning assembly according to the second aspect of the invention is that it is particularly suitable for use in a clean room since it guarantees particulate and microbiological cleanliness of the order of a micron and that it also makes it possible to achieve an accurate dosage in solution – when the latter is used to impregnate the cleaning wipes – and according to a tailor-made mixture in order to be able to be adapted to all types of environments and to all the specific constraints of cleaning and/or disinfection.

The cleaning assembly in accordance with the second aspect of the invention advantageously comprises at least one of the improvements below, the technical characteristics forming these improvements being able to be taken alone or in combination:

- The means further comprise a cleaning solution and / or disinfectant in which the wipes are completely embedded. The cleaning and/or disinfectant solution is of the type described above with the packaging method in accordance with the first aspect of the invention;

- the resealable packaging bag is of the type (i) of a zipped bag, said resealable packaging bag comprising a closing zip at an upper end in order to allow the opening and closing of the resealable packaging bag in actuating the closing zip from one side edge to the other of the resealable packaging bag, and/or (ii) of a self-supporting bag comprising at least one side gusset located at a lower base of said self-supporting bag, the at least one lateral gusset that can be deployed in order to keep a lower edge of the self-supporting bag unfolded;

- the resealable packaging bag is of the heat-sealed bag type. Advantageously, the packaging bag comprises both a heat-welded seal and a closing zip as described above. The closing zip is preferably located below a sealing line along which the walls of the packaging bag are heat-sealed together. In addition, the opening line of the packaging bag is preferably located between the sealing line and the closing zip;

- the resealable packaging bag is of the type of a double-walled bag, the resealable packaging bag comprising an inner wall housed in an outer wall, the inner wall being integral with the outer wall. This advantageous configuration makes it possible to make the packaging bag more resistant and more solid. In addition, according to an advantageous variant of the invention in accordance with its second aspect, the first wall of the packaging bag is made of a first material different from a second material forming the second wall of said packaging bag. By way of non-limiting example, the inner wall can be made of polyethylene in order to facilitate heat sealing of the packaging bag; and the outer wall can be made of polyethylene terephthalate in order to make the packaging bag more rigid. Additionally or alternatively, a layer of aluminum can be introduced on the inner wall and/or on the outer wall of the packaging sachet in order to improve the seal and reduce the risks of contamination of the wipes contained in the packaging sachet.

- advantageously, when the packaging bag comprises on the one hand a closing zip and a heat-welded seal, and on the other hand that the cleaning wipes are kept in a cleaning and/or disinfectant solution, then, according to a first embodiment variant, the solution can be poured directly after the cleaning wipes have been deposited in the packaging bag, and before it is sealed by heat sealing. According to a second embodiment, the cleaning wipes can be placed in the packaging bag just before the latter is sealed by heat sealing – without adding the solution – in order to be stored for conservation, the solution being poured later. in the packaging bag after reopening by tearing the packaging bag – in particular along the opening line as described above – the packaging bag then being closed again, once the solution has been poured, by means of the closing zip as previously described.

In a non-limiting manner, the packaging method in accordance with the first aspect of the invention and/or the cleaning assembly in accordance with the second aspect of the invention are particularly intended for use in the field of clean rooms for which the cleaning procedures cleaning and disinfection are very rigorous because they are carried out on a microscopic scale in order to best limit particulate and/or bacterial diffusion in these highly controlled environments. For this purpose, the cleaning wipes used are made of specific fabrics different from those in which commercial wipes are made, in particular those for domestic use.

Various embodiments of the invention are provided, integrating according to all of their possible combinations the various optional characteristics set out here.

Other characteristics and advantages of the invention will become apparent through the description which follows on the one hand, and several embodiments given by way of indication and not limiting with reference to the appended diagrammatic drawings on the other hand, on which :

illustrates a synoptic example of the various stages of the packaging method in accordance with the first aspect of the invention;

illustrates a schematic view of the cleaning assembly according to the second aspect of the invention.

Of course, the characteristics, the variants and the different embodiments of the invention can be associated with each other, according to various combinations, insofar as they are not incompatible or exclusive of each other. In particular, variants of the invention may be imagined comprising only a selection of characteristics described below in isolation from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from to the state of the prior art.

In particular, all the variants and all the embodiments described can be combined with each other if nothing prevents this combination from a technical point of view.

In the figures, the elements common to several figures retain the same reference.

With reference to FIGURE 1, the packaging method 1 according to the first aspect of the invention is described. In FIGURE 1, the dotted lines indicate optional steps of the packaging method 1 according to the first aspect of the invention.

Such a conditioning method 1 necessarily comprises the following steps:

- a selection step 11 of a number N of cleaning wipes;

- a step 12 of choosing a resealable packaging bag according to the number N of cleaning wipes selected;

- a step 13 of opening the selected resealable packaging bag;

- A step 14 of depositing the N cleaning wipes selected in the resealable packaging bag selected; And

- A closing step 15 of the resealable packaging bag.

The cleaning wipes introduced into the packaging bag are intended to allow use in a clean room, and more particularly to allow effective cleaning and/or disinfection in a clean room, that is to say on a microscopic scale. For this purpose, a fabric forming the cleaning wipes is advantageously chosen accordingly in order to allow such cleaning and to limit the diffusion of particles during cleaning. In addition, the cleaning wipes placed in the packaging bag are possibly previously sterilized and/or impregnated with a cleaning and/or disinfectant solution.

The step 12 of choosing the resealable packaging bag is carried out after the step 11 of selecting the number of cleaning wipes in order to select said resealable packaging bag according to dimensions adapted to the number N of cleaning wipes to be deposited therein. In particular, the number N of cleaning wipes deposited in the packaging bag is determined in particular according to the material making up the cleaning wipes and/or the cleaning and/or disinfectant solution – in particular in terms of concentration and/or volume – and / or of a volume necessary to sufficiently impregnate said cleaning wipes.

In the context of the invention, the packaging method is implemented by an operator, said operator simultaneously or successively manipulating the cleaning wipes and the resealable packaging bag in order to carry out the different steps of the packaging method 1 in accordance with the first aspect of the invention. However, all or part of the steps of the packaging method 1 can be implemented by an automaton without departing from the context of the invention.

Advantageously, the packaging method 1 also includes a step 17 of filling a solution in the resealable packaging bag in order to better keep the cleaning wipes saturated in solution and to be able to transport them easily in their closed packaging bag. In the example illustrated in FIGURE 1, the step 17 of filling the solution into the packaging bag is carried out after the step 14 of depositing the N cleaning wipes in said packaging bag. Alternatively, the step 17 of filling the solution into the packaging bag can be performed before the step 14 of depositing the N cleaning wipes in said packaging bag.

In order to improve the effectiveness of the cleaning by the cleaning wipes, the solution poured into the packaging sachet is advantageously of the type of a cleaning and/or disinfecting solution. Optionally, the cleaning and/or disinfectant solution can be obtained by dilution during an optional dilution step 171 prior to the filling step 17. The dilution step 171 thus comprises the mixing of a concentrated solution with a diluent in order to obtain a desired volume and concentration of the solution which is then poured into the packaging bag during the filling step 17. The concentrated solution is advantageously a concentrated cleaning solution and/or a concentrated disinfectant solution and the diluent is preferably an aqueous solution such as water or distilled water, optionally comprising alcohol in small proportions in order to promote drying.

In order to facilitate the implementation of the step 17 of filling the solution into the packaging bag and to guarantee that the saturation of the cleaning wipes with the cleaning and/or disinfectant solution is optimal, the packaging method 1 may comprise a step marking 16 of a reference volume of the solution to be filled in the packaging bag during the filling step 17. As mentioned above, the marking step 16 may consist of marking, on the resealable packaging bag, at least one reference volume for filling the solution.

In order to improve the conservation of the cleaning wipes in their packaging bag, the packaging method 1 advantageously comprises an optional step of depressurization 18 of the resealable packaging bag. The depressurization step is advantageously carried out just before the closing step 15 of said resealable packaging bag, in order to reduce – or even completely remove – the presence of air in the packaging bag, once closed. In addition, this depressurization step also makes it possible to compress the packaging bag and to reduce its size, for example for temporary storage before use. In addition, in the context of the use of cleaning wipes in a clean room, the depressurization step makes it possible to limit the risks of introducing impurities and/or pollutants and/or undesired gases inside the White room. The depressurization step 18 is preferably implemented by a pump making it possible to extract a gas from the resealable packaging bag. Alternatively, the depressurization step can be carried out manually in order to create a partial vacuum in the packaging bag.

Finally, in order to sterilize the packaging sachet and its contents and thus limit the risks of pollution of a controlled environment in which the packaging sachet is intended to be introduced and the cleaning wipes are intended to be used, the packaging method 1 can advantageously comprise a step 19 of irradiating the resealable packaging bag containing the cleaning wipes and optionally the solution. The irradiation step 19 consists of exposing the resealable packaging bag to gamma radiation for a reference duration. The reference duration and/or an intensity of the gamma radiation are chosen in order to destroy a majority of the bacteria present inside the resealable packaging bag and/or on its walls. In the context of the invention, the irradiation step 19 can be carried out on the packaging sachet comprising the cleaning wipes or – indifferently – on the packaging sachet comprising the cleaning wipes immersed in the solution.

With reference to FIGURE 2, an example embodiment of a cleaning assembly 2 for a clean room will now be described. In accordance with the invention, such a cleaning assembly 2 comprises means configured to implement the packaging method 1 in accordance with the first aspect of the invention and as described previously in one or other of its variants.

In particular, the means of the cleaning assembly 2 in accordance with the second aspect of the invention and illustrated in FIGURE 2 comprise:

- a resealable packaging bag 20;

- a plurality of wipes 22 arranged in the resealable packaging bag 20. Cleverly, the wipes 22 are folded so that a face intended to be in contact with a surface to be cleaned is located towards the outside of the bag resealable packaging 20. The way in which the wipes 22 are folded in the resealable packaging bag 20 depends of course on the dimensions of said wipes 22, their quantity and the dimensions of said resealable packaging bag 20;

– in the case where the wipes 22 are kept embedded in the resealable packaging bag 20, then the resealable packaging bag 20 comprises a cleaning and/or disinfectant solution 21 in which the wipes 22 are completely immersed. The cleaning solution 21 can be of the alkaline type and include, for example, sodium hydroxide or potassium hydroxide, or it can be of the chlorine type and include, for example, sodium hypochlorite. The disinfectant solution 21 may include in particular glutaraldehyde and/or benzalkonium chloride and/or acetic acid and/or laurylpropylene diamine and/or quaternary ammonium. Advantageously, the solution 21 comprises a mixture of cleaning solution and disinfectant solution.

In the example illustrated in FIGURE 2, the resealable packaging bag 20 is of the type of a zipped bag: the resealable packaging bag 20 comprises a closing zip 205 at an upper end 204 of the resealable packaging bag 20.

Furthermore, the resealable packaging bag 20 illustrated in FIGURE 2 is of the type of a self-supporting bag: it comprises two side gussets 202 located at the level of a lower base 203. More particularly, each side edge 201a, 201b of the bag self-supporting bag forming the resealable packaging bag 20 comprises, at the level of the lower base 203 of the resealable packaging bag 20, a side gusset 202 making it possible to maintain the self-supporting bag in a vertical position when it is deployed. Indeed, when the side gussets 202 are deployed, then the lower edge of the self-supporting bag – forming the lower base 203 of the resealable packaging bag 20 – is unfolded in order to widen a base of the self-supporting bag on a support on which it is placed. .

Advantageously, the resealable packaging bag 20 illustrated in FIGURE 2 is of the type of a heat-sealed bag. The resealable packaging bag 20 is advantageously made of plastic material, such as comprising for example polyethylene terephthalate with a thickness of between 20 μm and 120 μm. In the case where the resealable packaging bag 20 is of the double-walled type, then an inner wall of said resealable packaging bag 20 can be made of polyethylene in order to facilitate heat sealing of the packaging bag; and an outer wall of said resealable packaging pouch 20 may be made of polyethylene terephthalate in order to make the resealable packaging pouch 20 more rigid. Additionally or alternatively, a layer of aluminum can be introduced on the inner wall and/or on the outer wall of the resealable packaging bag 20 in order to improve the seal and reduce the risks of contamination of the wipes 22 contained in the bag. resealable packaging 20.

The resealable packaging bag 20 is advantageously transparent or translucent in order to be able to easily check its contents. Alternatively, the resealable packaging bag 20 is made opaque, for example by using aluminum to make said resealable packaging bag 20 and in order to better preserve the wipes and/or the properties of the solution in which they are optionally impregnated.

The dimensions of the resealable packaging bag are chosen according to the number of cleaning wipes 22 that one wishes to keep in it and/or the dimensions of said cleaning wipes 22 and/or a volume of solution 21 poured into the resealable packaging bag 20 in order to impregnate said cleaning wipes 22. By way of non-limiting example, a first external dimension of the resealable packaging bag 20 taken between its two lateral edges 201a, 201b is of the order of 380 mm, and a first internal dimension of the resealable packaging bag 20 taken between its two side edges 201a, 201b is of the order of 360 mm. A second external dimension of the resealable packaging bag 20 taken between its upper end 204 and its lower base 203 is of the order of 330 mm; and a second internal dimension of the resealable packaging bag 20 taken between its lower base 203 and its closing zip 205 is of the order of 270 mm. Finally, a third dimension perpendicular to the first and second dimensions is of the order of 180 mm.

Such a resealable packaging bag 20 is particularly suitable for storing, impregnating and preserving 20 cleaning wipes 22 comprising polyester with a density of 180 g/m² and dimensions 11.5 cm x 65 cm. Of course, the invention is not limited to this type of cleaning wipes 22, neither from the point of view of their shapes and their dimensions, nor from the point of view of their materials: such a resealable packaging bag 20 is configured to store, impregnate and preserve all types of cleaning wipes 22.

As seen in FIGURE 2, each side edge 201a, 201b includes, near the upper end 204 of the resealable packaging bag 20, a tear starter 206a, 206b; and the resealable packaging bag comprises a laser pre-cut opening line 207 which connects the two tear starters 206a, 206b in order to facilitate the first opening of the resealable packaging bag 20, after its heat-sealing.

In summary, the invention relates to a packaging method 1 of cleaning wipes 22 intended to be used in a clean room to clean surfaces. The packaging method 1 thus makes it possible to store, to impregnate the cleaning wipes 22 in cleaning and/or disinfectant solution 21 and to store them effectively in a resealable packaging bag 20, advantageously self-supporting in order to facilitate its handling. The resealable packaging bag 20, the cleaning wipes 22 and the solution 21 in which they are optionally embedded in said resealable packaging bag 20 collectively form a cleaning assembly 2 particularly suitable for work in a clean room and making it possible to limit the risks of contamination. .

Of course, the invention is not limited to the examples which have just been described and many adjustments can be made to these examples without departing from the scope of the invention. In particular, the different characteristics, forms, variants and embodiments of the invention may be associated with each other in various combinations insofar as they are not incompatible or exclusive of each other. In particular, all the variants and embodiments described above can be combined with each other.

Claims (10)

Method of packaging (1) several cleaning wipes (22), the method of packaging (1) comprising the following steps:
- a selection step (11) of a number N of cleaning wipes (22);
- a step of choosing (12) a resealable packaging bag (20) according to the number N of cleaning wipes (22) selected;
- a step of opening (13) the resealable packaging bag (20) chosen;
- a step of depositing (14) the N cleaning wipes (22) selected in the resealable packaging bag (20) chosen;
- a closing step (15) of the resealable packaging bag (20). Packaging method (1) according to the preceding claim and comprising a step of filling (17) a solution (21) into the resealable packaging bag (20). Packaging method (1) according to the preceding claim, in which the step of filling (17) the solution (21) in the packaging sachet is carried out after the step of depositing (14) the N cleaning wipes (22) selected. Packaging method (1) according to any one of Claims 2 or 3, in which the packaging method (1) comprises a step of locating a reference volume of the solution (21) to be filled in the packaging bag, the marking step being carried out before the step of filling (17) the solution (21) into the packaging bag. A method of packaging (1) according to any preceding claim, wherein the resealable packaging pouch (20) includes a zip closure (205) at an upper end (204), the step of opening (13) and the closing step (15) being carried out by actuating the closing zip (205) from one side edge (201a, 201b) to the other of the resealable packaging bag (20). Packaging process (1) according to the preceding claim, in which the resealable packaging bag (20) is of the type of a self-supporting bag, the packaging process (1) comprising a step of unfolding the self-supporting bag so that it stands stably on a lower base (203). Cleaning assembly (2) for a clean room, the assembly comprising means configured to implement the conditioning method (1) according to any one of the preceding claims. Cleaning assembly (2) according to the preceding claim, in which the means comprise:
- a resealable packaging bag (20);
- a plurality of cleaning wipes (22) placed in the resealable packaging bag (20). Cleaning assembly (2) according to the preceding claim, in which the means further comprise a cleaning and/or disinfecting solution (21) in which the cleaning wipes (22) are completely immersed. Cleaning assembly (2) according to any one of claims 8 or 9, in which the resealable packaging bag (20) is of the type:
- a zipped bag, said resealable packaging bag (20) comprising a closing zip (205) at an upper end (204) in order to allow the opening and closing of the resealable packaging bag (20) by actuating the zip closure (205) from one side edge (201a, 201b) to the other of the resealable packaging bag (20); and or
- a self-supporting bag comprising at least one side gusset (20) located at a lower base (203) of said self-supporting bag, the at least one side gusset (20) being able to be deployed in order to keep a lower edge unfolded self-supporting bag.