IT202100003998A1 - AN ENVELOPE CONTAINING A NAPKIN AND/OR ONE OR MORE DISPOSABLE CUTLERY OF THE GLUED AND EMBOSSED TYPE - Google Patents

Description

Description accompanying the patent application for an industrial invention entitled:

AN ENVELOPE CONTAINING A NAPKIN AND/OR ONE OR MORE? SILVERWARE

DISPOSABLE OF THE GLUED AND EMBOSSED TYPE

Scope of the invention

The present invention relates to the technical sector relating to the production of disposable products in the catering sector, canteens and the like.

In particular, the invention refers to an innovative bag able to contain cutlery, for example disposable, and/or one or more items. wipes and which envelope? made according to a concept of optimization of the closure for which also improving the? impact on biodegradability? and/or compostability? of the same.

Brief outline of the prior art

AND? known for a very long time the production and the consequent use of envelopes which are made in order to contain inside them elements to be used at the table during the consumption of meals, such as napkins, napkins and/or cutlery.

There are therefore envelopes that can contain a single napkin (or towel, if you prefer) as well as envelopes that contain a complete set of towel and cutlery.

AND? the use of these envelopes in motorway restaurants is very frequent and where ? a self-service type service is generally provided.

These envelopes are also often used in school canteens or company canteens.

Generally the envelope is produced and distributed with the napkin or tissue placed inside.

Envelope ? generally rectangular in shape and ? obtained from sheet material suitably folded and heat-sealed.

In production we generally start from a strip which along the production line is unrolled and folded (therefore to a single fold) in such a way as to form a tubular and therefore an upper sheet which overlaps a lower sheet.

Therefore, starting from the flat rectangular sheet, the strip is folded bringing the two longitudinal edges to overlap the underlying sheet that is generated with the folding.

The two flaps are coupled together by heat sealing and therefore form a sort of longitudinal fin which is superimposed on the underlying sheet in an area in the middle of the underlying sheet.

During the production process, the napkin (or towel) is inserted into the tube and then we proceed with the cutting of the formed tube to obtain the individual envelopes.

Figure 1 of prior art describes a product that has been marketed for some time in which an envelope 100 containing a napkin 200 (or washcloth, if you prefer) is highlighted.

The envelope, as mentioned, ? obtained from a single sheet (which derives from a continuous strip) and is folded on itself bringing the two longitudinal edges to join each other by heat sealing in such a way as to form a longitudinal center line, i.e. placed in the longitudinal center plane of the envelope. In fact, figure 1 shows the center line 101 which? obtained by coupling said longitudinal edges of the starting sheet and thus forming a sort of fin 101 which rises from the plane of the envelope.

Generally the coupling to obtain said fin 101 ? by heat sealing together with a knurling, as can be seen from the same figure 1 which highlights the longitudinal lines imprinted in the fin 101.

The knurling? an operation which is carried out by imprinting the paper with a wheel which bears a certain design which is imprinted by crushing and rolling on the paper.

In this case, the knurling pattern made in the fin 101 of the known art? in the form of parallel lines running along the fin.

The heat sealing also involves the lower transverse edge to close the bottom of the bag while the upper transverse edge is left at least partially open to allow the introduction/removal of the napkin and/or cutlery (see in fact the napkin partially extracted from the upper transverse edge) .

In fact, in this regard, figure 1 shows a napkin 200 partially extracted from the envelope through said opening.

Thanks to this solution, for example in a canteen, the operator can? place the metal and sanitized cutlery in the bag and the bags are arranged in a collection area for consumers.

The consumer can therefore take the bag with sanitized cutlery and towel inside and, thanks to this solution, there is no need for it. the guarantee of a high standard of hygiene as no one will enter? never come into contact with the cutlery except the end user when they are removed from the bag.

The prior art solutions are not for? free from a technical drawback linked to the guarantee of a good union between the parts for the formation of the envelope.

AND? in fact, it is necessary to apply a certain quantity of thermo-adhesive material in order to guarantee a good seal of the closure of the flap and of the bottom of the envelope.

There? obviously also has an impact on the recyclability? of the envelope itself.

Although the union of the longitudinal edges to form the center line fin 101, as well as the closure of the bottom of the envelope, takes place by heat sealing which in itself has a good seal, nevertheless? It is necessary to use a large quantity of strips of heat-sealable material to have a stable closure.

The problem remains the same even by coupling a knurling along the heat-sealed strip.

Obviously the massive use of heat-sealable material also creates problems of disposal of the product ?envelope? after use.

A reduced use of heat-sealable material instead leads to unreliable and therefore not very functional closures.

Summary of the invention

? therefore the object of the present invention is to provide an innovative envelope solution which solves the aforesaid technical drawbacks.

In particular ? The object of the present invention is to provide an envelope suitable for containing cutlery, for example but not necessarily of the disposable type, and/or one or more items. wipes in which the closure is stable and reliable even when a low quantity of closure material is used, for example heat-sealable material.

These and other purposes are achieved with the present pouch for containing at least one towel in accordance with claim 1.

This envelope? entirely in paper material.

According to the invention, the envelope ? fully embossed.

Basically, the entire area constituting the sheet (or sheets) that goes (or goes) to form the envelope? (or are) provided (or provided) with an embossing.

The embossing can bring back any design but, in any case, it ? extended to the entire surface constituting the envelope.

Embossing, as is well known, is carried out with special embossing rollers which imprint the paper on its entire surface.

Knurling and embossing are similar but the difference is in the area over which they extend.

Generally knurling is carried out with wheels much smaller in width than the sheet on which they work and therefore imprint a limited strip of a sheet; the embossing, on the other hand, is performed with rollers that imprint the entire width of the paper and therefore with rollers whose ?light? (that is, their length) ? greater than or equal to the paper light being processed.

The working principle? the same given that knurling and embossing both serve to imprint a design on a paper that deforms under their pressure, acquiring the imprinted design in negative.

In particular, the protuberances present on the roller or wheel that is passed over the paper imprint the paper.

In the case of embossing, these are generally high-relief micro-dots present on the roll and in the case of knurls, they are generally (but not necessarily) high-relief lines that imprint the paper, generating parallel lines imprinted on the paper.

The embossing rollers are therefore equipped on their working surface with protuberances which can also generate different designs. The imprinted paper is then squeezed by such rollers having such protuberances whereby imprinting such protuberances on the paper.

AND? it is now clear that this solution solves the aforesaid technical drawbacks.

These protuberances do in fact s? that, following the formation of the envelope and therefore its closure along the longitudinal and transversal line, the closing action is much more? efficient.

The embossing, by creating imprints in the paper, ensures that there is a coupling between the edges with a greater seal since a protuberance of a sheet of paper penetrates into a relative recess of the paper sheet following coupling. This means that coupling a fully embossed paper favors the grip in the joint areas and ? therefore it is possible to use a smaller quantity of material for the union.

In the case of use of thermo-weldable material, as per prior art, will it be? You can use a small amount.

Therefore, according to the invention, the envelope made of paper material has an embossing over its entire surface, including also on the fin part and on the closed lower edge.

In addition, the fin, as well as the lower closing edge of the envelope, can further have a knurling which adds to the embossing.

The knurling, for example that of the fin but also if desired, that of the bottom closure of the envelope, can? be intermittent, i.e. knurling sections interspersed with sections without knurling.

The knurling can be intermittent in the form of parallel lines but pu? also have designs other than parallel lines.

In any case, the presence of the embossing, made for example upstream of the production process on the strip being processed before forming the envelope or also done after forming the envelope, in any case facilitates the sealing of the parts joined together.

In this way a smaller quantity of sealing material, for example the heat-sealable material, can? be used all in favor of bio-degradability? and compostability? of the product.

Advantageously, in a preferred form of the invention, thanks to the embossing ? now it is possible to close the envelope for its formation with glue instead of heat-sealable material.

Advantageously, as is well known, this envelope forms an internal containment volume such that it is suitable for containing at least one towel and/or cutlery (one or more than one).

Envelope ? advantageously formed by a single sheet (20) of paper material folded on itself in such a way as to bring the two longitudinal edges (33, 34) of said sheet to overlap the remaining part (A3) of sheet.

In fact, a sort of closed tubular is formed along a longitudinal closing line.

Therefore, connection means are included which are arranged in such a way as to join said two longitudinal flaps together, thus generating a joining (or closing, if you prefer) longitudinal strip or line (11) which is superimposed on the underlying part of the sheet and also generating a transversal closure (4, 4?) which forms the closed bottom of the envelope.

The envelope is therefore closed along a longitudinal line which then continues with a transversal line near the envelope. of the transverse side of the envelope.

The envelope can further be provided with an opening for the extraction of its contents, generally obtained by not closing the upper transversal edge but it is not? excluding the realization of an envelope also closed at the top.

In accordance with the invention and therefore with what has been introduced above, said single sheet forming the envelope has its entire surface embossed.

As mentioned, the embossing is preferably carried out on the sheet before forming the envelope and closing it, but it is not? absolutely excluded an embossing made after the closure, once the envelope has been formed, and which would therefore in any case have the same effect of improving the seal, as described above.

Advantageously, the embossing would allow the use of connection means other than the classic thermo-welding, all to the advantage of recyclability? and/or compostability? of the envelope itself.

Advantageously, for example, said connection means can provide a glue as an alternative to heat-sealing.

In particular, thanks to the use of glue, it is not more necessary to use thermo-plastic material which is certainly more? hardly bio-degradable and ? certainly less bio-compatible.

By selecting appropriate bio-compatible glues, therefore of the bio-degradable and/or compostable type, ? possible to obtain a totally biodegradable and/or compostable paper bag.

There are many bio-degradable type glues of natural origin and any of these can? be selected.

The glue can be given in a few dots in the form of drops or dots of glue.

Since the glue is used in small quantities, thanks to the combined effect of the embossing, glues that are not necessarily biodegradable can also be used since, however, being used in a small quantity, they do not affect the bio-degradability of the product. envelope overall.

Advantageously? Also described here is a method for creating an envelope suitable for containing at least one napkin or towel, the method comprising the following steps:

- Feeding of at least one paper tape along a processing path;

- Application of closing means at least along the two longitudinal edges (S1, S2) of the tape and transversally with a certain pitch;

- Tubular closure of the tape in such a way as to form a succession of envelopes connected to each other;

- Cutting for the separation of the envelopes;

- The method comprising an embossing step in such a way that the entire envelope obtained is embossed.

This embossing indicated above could be carried out at various times of the production process.

For example, advantageously, in a first preferred embodiment of the invention, a paper tape already in use could be used upstream. previously embossed during its production phase.

In this way, a starting reel could be set up, from which to unwind this tape during the working process, with the reel which in fact has a tape already ready. embossed.

In this case the production process would in fact be the known one, with the substantial difference of the use of an embossed starting ribbon.

In a possible variant, advantageously, a reel of non-embossed tape could be used.

In this case, said processing path can? comprising at least two embossing rollers and a process of embossing the web across the width by passing said web between said at least two embossing rollers.

This passage through said embossing rollers can? take place preferably before applying the closing means and therefore before closing the tubular.

However, if for example a thermoplastic film is used as a sealing medium, it is not? excluding the embossing after the application of the closure means and before the closure of the tubular.

In all configurations, advantageously, not ? not even excluding the embossing after the formation of the tubular which therefore passes through the embossing station which makes the closing means better grip and then you can? proceed with the cut.

Finally, advantageously, isn't it? excluding envelope embossing formed after cutting.

Advantageously, before the tubular closure can? including the operation of applying a succession of napkins to the tape according to a predetermined step.

In this way the tubular, once closed, will contain? at pre-established points, representing individual envelopes, a napkin or washcloth.

Advantageously can? including a knurling operation of the closed edges of the envelope.

This operation can be carried out, for example, before cutting the envelopes (that is, the separation of the tubular format, therefore glued with the napkin placed inside) or, if desired, a knurling could be done on the individual envelopes even if this operation would be much more? complicated.

AND? finally, object of the present invention is the use of a fully embossed paper sheet for the formation of an envelope suitable for containing at least one napkin or towel.

Brief description of the drawings

Additional features and benefits of this envelope, will be more? clearly with the following description of some embodiments, given by way of non-limiting example, with reference to the attached drawings, in which:

- Figure 1 shows an axonometric view of a product according to the prior art;

- Figure 2 schematises an axonometric view of the envelope according to the invention in order to highlight the entire embossing of the envelope, embossing which also affects the flap 11 obtained by joining together the longitudinal edges of the starting sheet; Figure 2 also shows an example of knurling 11? of the fin formed by intermittent sections, i.e. sections of knurling (11?) interspersed with sections without knurling; The knurling (11?) in this example case ? formed by lines parallel to each other;

- Figure 3 ? a view of the front part of the envelope (that is, from the side opposite the flap 11) and therefore represents the part opposite to that represented in figure 2; Also in this case, the embossing that totally affects the envelope is highlighted, including the two transversal edges, i.e. the one closing the bottom and the opposite one open for the napkin to come out;

- Figures 4, 5 and 6 are top views of the single starting sheet on which the glue dots are given (see figure 6) for the formation of the envelope followed by folding; The figures highlight the entire surface of the embossed sheet;

- Figures 5A and 5B show a cross section of the envelope to highlight the realization of the longitudinal joining line which is positioned inside the area of the envelope;

- Figure 7 schematically shows some sections of the production line according to a possible production solution, in case of embossing during production; in particular, the figure shows the embossing section 60 of the tape 10 which is then fed towards the napkin positioning station 70 and the glue distribution station 80; The sheet is then closed on itself in a tubular shape and calendered and/or cut.

Description of some preferred embodiments Figure 2 shows an axonometric view of an envelope 1 made according to the invention.

Envelope ? made entirely of paper material, in such a way as to be totally biodegradable and/or compostable.

The envelope preferably has a rectangular or substantially rectangular shape.

For this purpose, therefore, figure 2 shows a lower side 4 and the two sides 5 and 6, as well as the upper side 7 parallel to the lower side 4.

The lower side 4 (cross side) ? closed in such a way as to form the bottom of the bag.

In this regard, figure 2 shows a knurling strip (4?) which runs transversally and which will resumed immediately afterwards.

Above, the transverse side 7 ? instead open at least partially to generate the opening of the envelope.

Again as shown in figure 2, ? then a longitudinal fin 11 is provided which runs for all or part of the longitudinal length of the envelope.

It ? preferably arranged along the longitudinal center line of the envelope or in any case substantially arranged along the longitudinal center line of the envelope.

This longitudinal fin? the result of joining the two longitudinal edges of the starting sheet forming the envelope, as better clarified below, exactly as introduced in the prior art.

This longitudinal fin therefore forms a longitudinal line joining two longitudinal edges of a starting sheet.

Figure 3, for greater clarity, shows the envelope turned over on the face opposite to that from which said longitudinal fin departs

The envelope can also have shapes other than rectangular, for example pu? be square or any other shape even if the rectangular shape ? the favorite one, also why? more suitable for containing cutlery.

Going more into the descriptive detail of the invention, figure 4 shows the starting sheet 20 which generally ? rectangular in shape.

AND? therefore a lower transverse side 31, an upper transverse side 32 and two longitudinal sides 33 and 34 are provided.

The dotted lines 21 and 22 are theoretical longitudinal lines along which the single sheet is folded to form the envelope.

The dotted lines 21 and 22 therefore represented in figure 4 generate an area or panel A1, an area or panel A2 and a central area or panel A3, as in figure 4.

Area A1 is therefore overturned onto area A3 and the same happens for area A2 which is overturned onto area A3.

The area A1 is flipped with a rotation along the longitudinal line 21 while the area A3 is flipped with a rotation along the longitudinal line 22.

In practice, the sheet is folded forming a tubular, as better explained pi? forward in the production process.

The distance between the fold line 21 and the perimeter edge 34 and the distance between the fold line 22 and the perimeter edge 33 ? such that, once the overturning has been carried out, the two edges 33 and 34 touch and can be joined together to generate the tube.

In fact, figure 5 shows the two lateral longitudinal strips (S1, S2) with a pattern, which are coupled to each other following the folding of the areas A1 and A2 on the central area A3 and which leads to the formation of the fin of figure 2.

In fact, figure 5A shows these longitudinal flaps S1 and S2 folded upwards along the longitudinal lines (S1?) and (S2?) in such a way as to face each other to unite and generate a tubular element as a whole.

Figure 5A shows for clarity the internal volume (V) of the envelope where the napkin (or towel, if you prefer) is arranged.

The tubular must be closed at least at the bottom and along the flaps (S1, S2) for the formation of the envelope.

In accordance with the invention, the starting sheet indicated in figure 5 is entirely embossed for its entire surface.

There? means that its entire surface, including the strips (S1, S2) have this embossing.

The embossing design can be any and the entire area of the sheet making up the envelope is embossed.

There? means that the whole area (A1, A2, A3) of the sheet is scattered with an imprint obtained through the passage through embossing rollers (for example if the embossing roller includes an embossing surface scattered with micro-protuberances, then the surface of the sheet will be strewn with micro hollows scattered over it).

There? it favors the subsequent closure of the flaps (S1, S2) and of the bottom closure whether a heat-sealable material or glue is used.

In a preferred configuration of the invention, the union of these longitudinal flaps (S1, S2) is obtained by distributing a glue material.

In particular, with reference to the schematization of figure 6, glue points (p1?pn) are shown according to a distribution which obviously is not ? to be understood in a strictly limiting sense.

In this way, when the aforementioned folding is carried out, the strip (S1) overlaps the strip (S2) as in figure 5A and, thanks to the glue, the union takes place.

The position of the fin? preferably along the longitudinal centerline of the envelope but, however, not ? by no means excluded a final positioning that is not necessarily along the center line, and therefore moved for example to the right or to the left at any point on the surface of the back of the envelope.

Although the solution of figure 5A is preferred, and it being understood that the position does not necessarily have to be on the longitudinal centreline, does it not? excluding the formation of a midline joining line obtained by superimposing the two flaps (S1) and (S2) without folding them along the line (S1?, S2?) thus leading to an overlap as in figure 5B.

In the same way, by overturning (A1) onto (A3) and of (A2) onto (A3), the lower transversal strip (S3) of figure 6 also closes on itself, generating the closed bottom of the envelope.

Glue dots (Pn) are distributed on it for this purpose, as shown in figure 6.

Furthermore, some glue points (P?1?) can be given in the vicinity? of the upper edge at a certain distance from each other in such a way as to form an opening mouth of the envelope whose length? smaller than the overall width of the envelope formed.

As an alternative to the discrete points of glue you can? obviously foresee the distribution of a continuous strip of glue.

The glue can be distributed through a dispenser which deposits it in dots or through a roller which distributes it, depending on the case.

The glue ? preferably of the compostable and/or biodegradable type and there are many types of glues that can be used on the market.

In order to optimize the estate? a further knurling step is provided after closing and which is coupled as an effect to the embossing of the sheet.

The type of paper used for this envelope? composed by:

100% pure cellulose paper.

In particular, advantageously, you can? use semi-recycled or 100% recycled paper.

In all cases, the indicative weight ranges from 30 to 120 g/m2.

The color can be any such as white or colored.

The paper can be unprinted or printed with full background decorations or colors or subject or customized designs.

In the case of knurling along the closure lines of the bag, these may have continuous lines parallel to each other.

However, preferably, the knurling lines made are intermittent, ie sections of line interrupted by sections without a line.

There? ? for example highlighted in figure 2 which shows a non-limiting example of parallel knurling lines of the intermittent type, i.e. knurling lines that do not run along the entire length of the area where they are applied but are interrupted at times, thus creating material without knurling at intervals from material with knurling along the line of development of the knurls.

Yes ? in fact surprisingly found, experimentally, that an intermittent distribution favors the seal.

Isn't the intermittent distribution (that is, knurled sections interspersed with sections without knurling along the direction of development of the knurling)? bound only to the creation of incision lines parallel to each other.

Any drawings with a shape other than straight sections could also be made and therefore the example in figure 2 is not? to be understood in a limiting sense.

Having described the envelope structurally, for the sake of clarity, we describe a possible production process of the same:

It starts from a single paper tape which is unwound from a starting reel along the processing path.

In a first possible configuration of the invention, the starting coil used could already be? been embossed during a previous production phase and, for this reason, the ribbon being processed could already? upstream of? the entire process be already? embossed.

In this way, a starting tape would be introduced into the production process already? embossed.

Alternatively you can? start with a non-embossed reel and foresee an embossing station along the path of feeding (or processing, if you prefer) of the ribbon.

Along the processing route can? therefore, first of all, an embossing of the entire strip being processed on its entire surface must be carried out.

The ribbon passes through at least one pair of embossing rollers, as schematically indicated in figure 7.

On the embossed tape, therefore leaving the embossing rollers, the glue is applied (for example in dots) along the perimeter of the embossed reel tape and transversely according to a certain pitch (see for example figure 6) in such a way as to define perimetrically and transversely the closures of the envelopes that will be obtained from the tape.

Therefore, during the sliding phase of the ribbon, after embossing, the napkins are placed according to a certain pitch on the ribbon and then the glue dots are applied as described above (the vice-versa can also occur, i.e. according to an inverted sequence which involves first the glue and then the positioning of the napkin).

Follows the closure of the embossed sheet on the same forming cos? the tubular that contains the napkins.

Thanks to the embossing, the closure? much more effective and a smaller quantity of glue pu? Be expected.

Before cutting the ribbon for the formation of the individual envelopes can? provide for further knurling along the closure lines (therefore along the fin (S1, S2) and along the bottom of the bag).

The knurling lines in combination with the embossing further optimize the closure by requiring less glue.

Then follows a cutting phase in which the tubular is transversely cut to form the envelope.

To glue can? replace the application of heat-sealable material.

Obviously the distribution of the glue (or of the heat-sealable material) takes place along the predefined perimeter of the sheet and the position of the glue can be vary according to the different tape dimensions.

Depending on the size of the tape, after appropriate phasing of the machine, you can? proceed to join the longitudinal and transverse sides to form the closed bottom of the bag on one side and leaving open only the point that you may want to leave open to insert the metal cutlery and to remove the napkin.

Not ? excluding the production of totally closed envelopes both on the front and on the bottom.

Figure 7 therefore shows, with reference to the production process, a mother reel 50 mounted on a suitable unwinder.

From it a ribbon of paper material of the flat type is unrolled.

The web, as shown in Figure 7, passes through at least one pair of embossing rollers 60 which form the embossing station.

The next station 70 ? the one which releases the napkin 71, with a certain pitch, onto the embossed tape which advances along the processing path.

AND? the gluing station 80 is also provided which doses the glue for the formation of the tubular and, in this regard, the station 90 provides for this formation of the tubular.

The subsequent station 95 provides the described knurling and the station 96 carries out the cutting of the tubular for the formation of the single envelopes.

The following may be considered preferred measurements. With reference to figure 4, the sides 31 and 32 can be in a range between 20cm and 30cm, preferably between 20cm and 25cm, and even more preferably measure 23cm or 25cm.

Said range between 20 and 30cm or the preferred value of 23cm or 25cm? therefore the width of the tape of the starting paper reel.

The sides 34 are more? length of said sides 32 and 31 and preferably can be selected in a range between 21cm and 31cm, preferably in a range between 22cm and 26cm, preferably 24cm.

Obviously these measures are only indicative and not limiting and any measure could be used without departing from the present inventive concept.

Claims (11)

1. An envelope (1) for containing at least one towel or napkin, said envelope being made of paper material and characterized in that it is entirely embossed. 2. The envelope according to claim 1 wherein said envelope is formed by a single sheet (20) of paper material folded on itself in such a way as to bring the two longitudinal flaps (33, S1, 34, S2) of said sheet to overlap the remaining part of the sheet and in which further means of connection arranged in such a way as to join together said two longitudinal flaps thus generating? a longitudinal closing strip (S1, S2) or line (33, 34) which is superimposed on the underlying sheet part and generating a transversal closure (4, 4?) which forms the closed bottom of the envelope, said single sheet forming the envelope having its entire surface embossed. 3. The pouch according to claim 2 wherein said connecting means is in the form of a glue. 4. The envelope, according to claim 2, wherein said connection means are in the form of a heat seal. 5. The envelope, according to one or more? of the previous claims, which further has an opening for the extraction of its contents. 6. The envelope, according to one or more? of the preceding claims, wherein said closing longitudinal line or strip? prepared along the longitudinal center line of the envelope. 7. The envelope, according to one or more? of the previous claims, in which said envelope ? rectangular or substantially rectangular in shape. 8. The envelope, according to one or more? of the preceding claims, wherein at least said closing longitudinal strip or line further has one or more? knurling patterns, for example lines, preferably said knurling patterns being intermittent so that knurled sections are interspersed with non-knurled sections along the direction of development of said knurling patterns. 9. The envelope, according to one or more? of the preceding claims, wherein the transversal closure further has one or more? knurling patterns, for example lines, preferably said knurling patterns being intermittent so that knurled sections are interspersed with non-knurled sections along the direction of development of said knurling patterns. 10. A method to create one or more? envelopes suitable for containing at least one napkin or towel the method comprising the following phases: - Feeding of at least one paper tape along a processing path; - Application of closing means at least along the two longitudinal edges (S1, S2) of the tape and transversally with a certain pitch; - Tubular closure of the tape in such a way as to form a succession of envelopes connected to each other; - Cutting for the separation of the envelopes; - The method comprising an embossing step of the ribbon being processed or of the envelopes obtained or, alternatively, the feeding of paper ribbon already embossed, so that in all of the above cases the entire bag obtained is totally embossed. 11. The use of at least one entirely embossed paper sheet for the formation of an envelope capable of containing at least one napkin or towel in such a way that the entire envelope obtained is completely embossed.