IT202100017135A1 - COMPOSITE TAPE - Google Patents

Description

DESCRIPTION

of the industrial invention entitled:

?COMPOSITE TAPE?

The present invention relates to a composite tape to be used to make absorbent sanitary articles and to a sanitary absorbent article comprising such a composite tape.

Absorbent sanitary articles generally comprise, schematically, a topsheet, a backsheet and an absorbent core disposed between the topsheet and the backsheet. The topsheet is generally the layer of the article in contact with the user while the backsheet is the layer of the article in contact with the user. the outer layer.

Absorbent articles are known, such as the one shown, for example, in document WO2016040091A1, which comprise a topsheet comprising a so-called three-dimensional bubble-shaped layer, obtained by deforming a web with embossing techniques; the bubble shape allows to improve the comfort for the user of the absorbent article.

To make sure that the tape subjected to embossing maintains the desired conformation, the topsheet generally also comprises a second layer or base layer joined to the embossed tape.

In the products more sophisticated techniques, the absorbent article comprises a liquid acquisition and distribution layer, known as ADL, applied to the topsheet and disposed between the base layer and the absorbent core, or to the base layer on the opposite side with respect to the three-dimensional layer.

The ADL layer allows you to receive liquids to transfer them and direct them towards the absorbent core and make it more absorbent. efficient use of the absorbent core.

Disadvantageously, the production of tapes for hygienic articles which provide for the presence of a topsheet comprising a three-dimensional layer, a base layer and an ADL applied to the topsheet involves a high use of material and high production costs.

? having felt the need to make tapes for hygienic items that are more? economic guaranteeing comfort for the user.

Purpose of the present invention ? therefore satisfy the aforementioned requirement.

At least the specified purpose ? achieved by a composite tape according to the independent claim.

The dependent claims correspond to possible different embodiments of the invention.

According to one aspect, the description relates to a composite tape, in particular a composite tape to be used for making absorbent hygiene articles such as diapers and the like.

According to one aspect, the composite tape comprises a first tape having a first face and a second face.

In one aspect, the first face of the composite tape ? the face that will be? in contact with the user (for example when the composite tape will be used for an absorbent hygiene product such as a diaper).

According to one aspect, the first web comprises at least a portion in which ? embossed a pattern so as to have at least one protrusion on the first face. The portion in which imprinted a reason ? also referred to hereinafter as the molded portion or shaped portion. In practice, the shaped portion ? a portion of the first ribbon printed with the aforementioned motif.

According to one aspect, the ledge ? bounded at least in part by a base portion.

Schematically, the protrusion protrudes, with respect to the base portion, from the first face towards the user to increase the comfort of the absorbent article which can embed composite tape.

According to one aspect, the composite tape comprises a length of a second tape joined to the second face of the first tape at least at said base portion.

In one aspect, the composite tape has at least one cavity delimited by the first band and by the portion of the second band in correspondence with the shaped portion.

According to one aspect, the piece delimits a cavity in the composite strip. with the ledge. Advantageously, the length of the second strip keeps the printed portion deformed by blocking the first strip at least in correspondence with it.

According to one aspect, the first tape ? made of non-woven fabric.

According to one aspect, the segment of the second tape ? a liquid acquisition and distribution layer (ADL).

According to one aspect, the segment of the second tape ? made of non-woven fabric.

Non-woven fabric is a material whose fibers are randomly oriented. The piece of the second tape pu? be made for example in: carded fibers, synthetic non-woven fabrics, cellulose fibers, viscose, polyester, cotton, polyamide and microfibre.

Advantageously, the piece of second tape applied to the first tape allows the shape impressed on the first layer to be maintained.

Advantageously, maintaining the shape of the first belt by using lengths of second belt, instead of a second continuous belt, allows to reduce the amount of material used.

Advantageously, reducing the quantity of material used allows to lower production costs.

Advantageously, the presence of an ADL allows the liquids which permeate from the first belt to be acquired and distributed.

According to one aspect, the molded portion has a multiplicity of of protrusions on the first face delimited respectively by a multiplicity? of basic portions.

In one aspect, the composite web comprises a length of a second web joined to the second face of the first web at the multiplicity of the web. of basic portions. In one aspect, the composite tape has a multiplicity of of cavities? delimited by the first tape and by the piece in correspondence with the printed portion.

Advantageously, the presence of protrusions ensures user comfort. According to one aspect, the multiplicity of protrusions defines a pattern. In other words, the multiplicity of protrusions defines a pattern in the first ribbon.

According to one aspect, the first tape ? printed to its full length. The portions of the second ribbon joined to the first ribbon maintain the pattern or model printed on the first ribbon at least in correspondence with the portions themselves.

According to one aspect, the first tape ? printed with embossing techniques.

In one aspect, the composite tape comprises a discrete succession of lengths of second tape.

In one aspect, the ledge can have different conformations.

In one example, the protrusion has a bubble shape.

In another example, the protrusion can? have a wave shape.

Further examples of conformation that the ledge can? assume are: circular, diamond, oval, teardrop, elliptical, heart, triangle.

In one aspect, the molded portion of the first tape and the length of the second tape are joined by welding.

For example, welding can take place by ultrasound.

In one aspect, the composite tape comprises an adhesive layer for joining the first and second tapes.

In one aspect, the adhesive layer ? disposed between the base portion of the printed portion of the first ribbon and the length of the second ribbon.

In one aspect, the length of the second web has plan dimensions corresponding to the plan dimensions of the imprinted portion so that the first web maintains the imprinted shape or pattern at least in the imprinted portion.

Advantageously, the dimensions of the blank are established on the basis of the desired dimensions of the molded portion.

According to one aspect, the disclosure relates to an absorbent article schematically comprising: a topsheet, an impermeable backsheet and an absorbent core disposed between the topsheet and the backsheet.

In one aspect, the topsheet comprises a length of a composite web in accordance with one or more? of the aforementioned aspects.

According to one aspect, the piece of the second tape ? disposed between the first tape and the absorbent core.

For example, ? possible to conform the first ribbon to obtain a so-called ?Bubble Topsheet?, that is? a bubble-shaped topsheet to increase user comfort. Advantageously, making an absorbent article whose topsheet has the aforementioned aspects allows to reduce the material used in the production of the article. The piece of tape used for the topsheet in fact comprises a printed portion and the ADL in correspondence with it also to keep it shaped as desired.

Advantageously, reducing the material required to produce the article makes it possible to reduce production costs.

In one aspect, the disclosure relates to a method of manufacturing a composite tape (for sanitary towel articles).

According to one aspect, the method comprises a step of advancing a first continuous web. According to one aspect, the method comprises a step of printing the first continuous web to obtain at least one protrusion delimited at least in part by a base portion.

Advantageously, printing the first band makes it possible to create protrusions which improve comfort for the user who uses the final product comprising the shaped (printed) band.

In one aspect, the first tape can? be molded obtaining protrusions with different shapes.

In one aspect, the first tape can? be printed obtaining a pattern formed by the protrusions.

According to one aspect, the shaping takes place with embossing techniques.

For example, the shaping of the protrusions can take place using a first roller equipped on its external cylindrical periphery with a plurality? of suction seats and a second roller peripherally equipped with a plurality? of teeth, having a substantially complementary shape to that of the suction seats.

According to one aspect, the method comprises a step of joining at least one length of a second web to the first web at the base portion or base portions in the molded portion.

Advantageously, joining lengths of second strip to the base portion of the protrusion allows to ensure that the protrusion itself is maintained.

Advantageously, joining portions of the second ribbon to the base portion of the protrusion ensures that the shape impressed on the first ribbon is maintained at least in correspondence with the portions of the second ribbon.

According to one aspect, joining the at least one portion of the second strip to the first strip allows at least one cavity to be delimited. between the first continuous strip and the piece in correspondence with the at least printed portion.

Advantageously, joining lengths of second strip allows to reduce the material used during production.

Advantageously, using a smaller quantity of material allows to reduce production costs.

According to one aspect, the method comprises a step of advancing, cutting and spacing a second continuous web to obtain lengths of second web.

According to one aspect, the step of cutting to obtain the lengths of second strip takes place, for example, with the slip and cut technique.

According to one aspect, the step of joining at least one length of a second web to the first continuous web comprises a step of welding the at least one length of the second web to the first continuous web.

The welding can be, for example, ultrasonic welding.

According to one aspect, the step of joining at least one length of a second tape to the first continuous tape comprises a step of disposing a layer of adhesive between said at least one length of second tape and the first tape.

The joining of the sections of the second ribbon to the first ribbon allows the 3D motif which is to be blocked and maintained, at least in correspondence with the sections. been imprinted on the first tape. Is the object of the description a? unit? forming to make composite tapes in accordance with one or more? of the aforementioned aspects.

According to one aspect, the unit? of forming comprises a printing device for printing a 3D three-dimensional pattern on a first web. The printing device? such as an embossing device.

According to one aspect, the printing device comprises a first roller or drum, rotatable around a respective axis, for example in an anticlockwise direction, and a second roller or drum, rotatable around a respective axis, for example in a clockwise direction.

The drums of the printing device are relatively positioned to define a passage slot for the first web and have parallel axes.

According to one aspect, the drums of the printing device are provided on their outer surface with mutually complementary male and female portions and shaped to impress the aforementioned 3D model or pattern on the ribbon when the ribbon passes through the passage slot.

In one aspect, the web is printed by conveying it through the drums of the printing device.

Depending on the shape with which the protrusions in the continuous strip are intended to be formed, the male portions and the respective female portions will have corresponding shapes.

According to one aspect, the unit? forming device comprises a device for applying the portions of second tape.

In one aspect, the applicator device comprises a cutting device for cutting lengths from a continuous web.

In one aspect, the cutting device comprises an anvil and a knife cooperating with the anvil to cut the lengths from a continuous web.

According to one aspect, the knife cuts the second continuous strip forming the lengths.

In one aspect, the pieces are spaced, for example with a slip and cut technique on the anvil itself.

According to one aspect, the applicator device comprises a piece joining device arranged downstream of the cutting device.

According to one aspect, the joining device comprises a sealing drum tangential to one of the drums of the printing device for joining the lengths to the continuous web.

In one example, slugs pass from the anvil of the cutter onto one of the drums of the printing device and are then welded by the sealing drum.

In another example, the sealing drum receives the lengths from the cutting device, for example by holding them by suction, and applies them to the continuous belt.

According to one aspect, the sealing drum and the drum of the printing device are configured to seal the lengths on the continuous web, for example by thermal welding. The main characteristics of the invention will become more evident in the detailed description which follows, made with reference to the attached drawings, which represent a purely exemplifying and non-limiting embodiment thereof, in which: - figure 1 illustrates a detail of a composite tape in accord with the description in a schematic sectional view;

figure 2 illustrates a detail of a composite tape in accordance with the description in a schematic perspective view;

figure 3 illustrates a detail of a composite tape in accordance with the description in a schematic perspective view;

figure 4 illustrates an absorbent article according to the description in a schematic plan view;

- figure 5A illustrates a unit? of producing a composite tape according to the description in a schematic front view;

- figure 5B illustrates a unit? of producing a composite tape according to the description in a schematic front view;

- figure 6 illustrates a detail of a unit? of manufacturing a composite tape in accordance with the description in a schematic view.

- figure 7A illustrates a detail of a unit? of manufacturing a composite tape in accordance with the description in a schematic view.

- figure 7B illustrates a detail of a unit? of manufacturing a composite tape in accordance with the description in a schematic view.

Fig. 8 illustrates an absorbent article according to the description in a schematic sectional view;

With reference to the accompanying drawings and with particular reference to figure 1, ? indicated by the numeral 1 a composite tape in accordance with the description.

Composite tape 1 ? preferably intended for the production of sanitary absorbent articles such as diapers, an example of which indicated with the reference 200 ? illustrated in figure 4. Composite tape 1, how will it be? better explained below, it allows to create so-called 3D or three-dimensional topsheets for sanitary absorbent articles, such as diapers.

The composite tape 1 comprises a first continuous tape 2 having a first face 2A and a second face 2B.

As illustrated, the first band 2 comprises at least one molded or shaped portion 3; in the example illustrated in figure 1, two molded portions 3 can be observed.

The shaped portion 3 ? a portion of the tape in which ? imprinted a motif or ? a portion of the first tape printed with this motif.

The molded portion 3 has at least one protrusion 4. The protrusion 4 ? delimited at least in part by a base portion 5 external to the protrusion 4.

With reference to the attached figures, the printed portions 3 are illustrated on a greatly enlarged scale to facilitate understanding of the present description.

The shaped portions 3 will constitute the 3D portions of the topsheet, normally provided to improve the comfort of the diaper in which they will be provided.

The composite tape 1 comprises a length 6 of a second continuous tape 16 joined to the second face 2B of the first tape 2 at the base portions 5.

Does the composite tape 1 have at least one cavity? 7. The cavity? 7 is delimited by the first ribbon 2 and by the segment 6 in correspondence with the printed portion 3.

In other words, the cavity 7 ? delimited by the second face 2B of the first band 2 in correspondence with the protrusion 4 and by the portion 6 of the second band 16.

When using the composite tape 1 in an absorbent hygiene product, the user is in contact with the first face 2A of the first tape 2.

Advantageously, the molded portion 3 ensures comfort for the user who uses the product and comes into contact with the at least protrusion 4 present on the first face 2A.

The piece 6 keeps the molded portion 3 in the desired shape.

In one embodiment, the first web 2 comprises non-woven fabric material.

In one embodiment, the first web 2 comprises polymer fibers.

In one embodiment, the length 6 comprises non-woven fabric material.

In one embodiment, segment 6 ? a liquid acquisition and distribution layer (ADL).

Advantageously, applying an ADL allows the liquids coming from the upper layers to be acquired and directed towards an absorbent core, increasing the efficiency of the absorbent hygiene product.

In one embodiment, the piece 6 comprises a layer of carded fibers.

In one embodiment, the length 6 comprises cellulose fibers.

In one embodiment, segment 6 ? an Airlaid.

In one embodiment, segment 6 ? a Spunlace.

In one embodiment, the molded portion 3 has a multiplicity? of protrusions 4 on the first face 2A delimited respectively by a multiplicity? of base portions 5 surrounding the protrusions 4.

In one embodiment, the composite tape 1 comprises a length 6 of a second tape joined to the second face 2B of the first tape 2 at the multiplicity? of base portions 5. In this embodiment, the composite tape 1 has a multiplicity? of cavities? 7 delimited by said first tape 2 and said piece 6 in correspondence with said printed portion 3.

The multiplicity of protrusions 4 defines a reason M. In other words, the multiplicity? of protrusions 4 defines a pattern that will constitute? the 3D or three-dimensional portion of the topsheet. In one embodiment, the first tape 2 is shaped, or printed, along its entire length.

In one embodiment, the composite tape 1 comprises a discrete succession of lengths 6 of second tape 16.

The lengths 6 keep the first ribbon 2 in the printed configuration at least in correspondence with the lengths 6 themselves.

The composite tape 1 has a succession of molded portions 3 maintained in the desired shape, each by the corresponding portion 6.

The first tape 2 can? lose the conformation derived from the molding in the areas where it is not? segment 6 is present. With reference to figure 1, the first tape 2? illustrated with no visible protrusions at the ends.

In an absorbent article 200 which uses a length of the composite web 1 as a topsheet, this length will present a molded portion 3, for the comfort of the user, in correspondence with which ? the piece 6 is arranged which, at the same time, keeps the molded portion 3 in the desired shape and defines an ADL.

In one embodiment, the protrusions 4 of the first strip 2 have a bubble shape, illustrated for example in figures 3 and 4.

In one embodiment, the protrusions 4 of the first strip 2 have a wave shape illustrated, for example, in figure 2.

In one embodiment, the waves printed on the first ribbon 2 comprise waves with their crests parallel to the prevailing direction of development of the first ribbon 2.

In one embodiment, the waves printed on the first ribbon 2 comprise waves with their crests transverse to the prevailing direction of development of the first ribbon 2.

The protrusions 4 of the first ribbon 2 can assume different shapes, for example diamond, heart, oval, teardrop, elliptical, clover-shaped.

The first tape 2 and the lengths 6 of the second tape 16 are joined, for example, by welding and/or adhesive.

In one embodiment, the printed portion 3 of the first tape 2 and the portion 6 of the second tape 16 are joined by welding, in particular by heat-sealing or thermo-mechanical welding.

In one embodiment, the printed portion 3 of the first ribbon 2 and the portion 6 of the second ribbon 16 are joined by ultrasonic welding.

In one embodiment, the composite tape 1 comprises a layer of adhesive 8, visible for example in figure 2.

The adhesive layer 8 ? arranged between the tape 2 and the segments 6, in particular between the base portion 5 of the molded portions 3 of the first tape 2 and the segment 6 of the second tape 16. The subject of the description is an absorbent article illustrated for example in figure 4 and indicated with the reference 200.

The absorbent article 200, described limited to the parts necessary for the understanding of the present invention, schematically comprises: a topsheet 201, an impermeable backsheet 202 and an absorbent core 203 disposed between the topsheet 201 and the backsheet 202. The topsheet 201 is the part of article 200 which, in use, is in contact with the user. The topsheet 201 comprises a piece of a composite tape 1 according to the aforementioned characteristics.

The composite tape 1 is cut to make a piece of composite tape to be assembled in article 200.

The segment of composite tape comprises a segment of the first tape 2 and at least one segment 6 of the second tape 16.

In one embodiment, the portion 6 of the second ribbon 16 has a shorter length than the portion of the first ribbon 2.

In one embodiment, the portion 6 of the second ribbon 16 has a smaller width than the portion of the first ribbon 2.

As shown for example in figure 8, the length 6 of the second band 16, included in the composite band 1, is arranged between the first tape 2 (included in the composite tape 1) and the absorbent core 203.

The subject of the description is a production method of a composite tape 1. The composite tape 1 ? preferably intended for the production of sanitary absorbent articles such as, for example, article 200.

The method comprises a step of advancing a first continuous tape 2.

The method comprises a step of printing at least a portion of the first continuous ribbon 2 to obtain at least a printed portion 3 having at least one protrusion 4 delimited at least in part by a base portion 5.

Preferably, the method, in particular the printing step, comprises a step of embossing the first continuous ribbon 2 along its entire length. With ?emboss? you intend to emboss or print a 3D pattern on the first tape 2.

The technique with which the first tape is printed 2 ? commonly known as embossing.

Advantageously, making protrusions 4 on the first belt 2 allows to increase the comfort of the user in contact with the first belt 2.

The method comprises a step of joining at least one length 6 of a second ribbon 16 to the first continuous ribbon 2 at the base portion 5 so as to to delimit at least one cavity? 7 between the first continuous tape 2 and the piece 6 in correspondence with the at least one printed portion 3.

Piece 6? joined to the first strip 2 at the base portions 5 on the opposite side with respect to the protrusions 4 so as to also define and delimit the cavities? 7.

In one embodiment, the method comprises a step of advancing, cutting and spacing a second continuous strip 16 to obtain lengths 6 of second strip 16.

? possible to use a technique of slip and cut, that is? a cutting and sliding technique in order to cut lengths of tape, obtaining discrete components, and create a spacing between them.

In one embodiment, the step of joining at least one portion 6 of a second ribbon 16 to the first continuous ribbon 2 comprises a step of welding the portions 6 of the second ribbon 16 to the first continuous ribbon 2.

In one embodiment, the step of welding the segment 6 to the first belt 2 takes place by ultrasonic welding.

In one embodiment, the step of joining at least one length 6 of a second tape 16 to the first continuous tape 2 comprises a step of placing a layer of adhesive 8 between the lengths 6 of the second tape and the first tape 2.

The joining of the lengths 6 of the second tape 16 to the first tape 2 allows the 3D motif which is to be blocked and maintained, at least in correspondence with the lengths 6. been imprinted on the first tape 2.

In a preferred embodiment, the first strip 2 is printed along its entire length with the motif M, to then be applied to it a succession of suitably sized and spaced lengths 6. The lengths 6 are applied in correspondence with the base portions 5 on the opposite side with respect to the protrusions 4 in an area in which the molded portion 3 remains defined and ? present the second segment 6 which, preferably, defines an acquisition and distribution layer.

Is the object of the description a? unit? 100 for forming, for example, composite tapes of the type of tape 1.

The unit 100 comprises a printing device 101 for printing the 3D pattern on the first web 2. The device 101 is of a type substantially known in the sector and ? also referred to as an embossing device.

In the examples illustrated in figures 5A and 5B, the device 101 comprises a first roller or drum 102, rotating around an axis a2 in an anticlockwise direction, and a second roller or drum 103, rotating around an axis a3, parallel to a2, in clockwise, relatively positioned so as to define a passage slot 104 for the first tape 2; for simplicity, rollers 102 and 103 are considered substantially tangent.

In one embodiment, the drum 102 and the drum 103 are respectively provided, on their outer cylindrical surface, with mutually complementary male and female portions and shaped to impress the aforementioned 3D model or pattern on the first ribbon 2. The first tape 2 is printed by conveying it through drums 102, 103.

The male - female portions allow the protrusions 4 to be formed on the first strip 2. Depending on the conformation with which the protrusion 4 is to be obtained, the male portions and the respective female portions will have different shapes.

Figure 6 illustrates, for example, the drums 102 and 103 shaped to impress the first strip 2 with wavy protrusions 4 having the crests 4A parallel to the prevailing development directions of the first strip 2.

In one embodiment, the drum 103 is shaped and the drum 102 acts as an anvil. The first ribbon 2 advances in a direction V2 through the slot 104 so that the outer surfaces of the drums 102, 103 cooperate by engaging the first ribbon 2 and impressing the 3D pattern on it.

Downstream of the printing device 101, the unit? of forming comprises an applicator device 105 of the pieces 6.

In one embodiment, the applicator device 105 comprises a cutting device 110 for obtaining the segments 6 from a continuous tape 16.

In one embodiment, the cutting device 110 comprises an anvil 106, preferably in the form of a drum rotating clockwise about an axis a6, and a rotating knife 107, rotating about an anticlockwise axis a7 as illustrated in the diagram. example of figure 5A, and cooperating with the anvil 106, to cut the lengths 6 from a tape 16.

The knife 107 cuts the second continuous strip 16, forming the lengths 6 which are suitably spaced, for example on the drum 106 itself with a known slip and cut technique not further described.

In one embodiment, illustrated in the example of figure 7A, the drum 106 is tangent to the drum 102 so as to transfer the segments 6 onto the belt 2 advanced from the drum 102.

The pieces 6 are for example held by suction on the belt 2 advanced on the drum 102.

The applicator device 105 comprises a joining device for joining the lengths 6 to the tape 2.

In one embodiment, the joining device comprises a welder which, in the example illustrated in Figure 5A, comprises a welding drum 108 rotatable about an axis a8 in the clockwise direction in the example illustrated, arranged downstream of the drum 106 according to the towards V16 of advancement of the tape 16.

The 108 drum? tangent to the drum 102 and allows to carry out the step of joining the lengths 6 with the first belt 2, i.e. joining the lengths 6 to the base portions 5 as schematized in figure 7B.

In one embodiment, the drum 108 and the drum 102 are configured to weld the lengths 6 onto the belt 2, for example by ultrasound.

In another embodiment, illustrated in the example of figure 5B, the drum 106 is tangent to the drum 108. The lengths 6 are, in this case, transferred from the drum 106 to the drum 108 and welded onto the belt 2 advanced from the drum 102 tangent to the drum 108.

In one embodiment, the applicator device comprises an adhesive dispenser 109. The dispenser, preferably arranged downstream of the printing device 101, dispenses the layer of adhesive 8 onto the tape 2 so that the lengths 6 can be joined to the first tape 2 by means of the adhesive.

Claims (11)

1) Composite tape comprising a first continuous tape (2) having a first face (2A) and a second face (2B), said first continuous tape (2) comprising at least one printed portion (3) having at least one protrusion (4) on the first face (2A), said protrusion (4) being delimited at least in part by a base portion (5), said composite tape comprising a length (6) of a second continuous tape (16) joined to the second face (2B) of the first continuous tape (2) at least at said base portion (5), said composite tape presenting at least one cavity? (7) delimited by said first continuous ribbon (2) and said piece (6) in correspondence with said printed portion (3). 2) Composite tape according to claim 1, wherein the printed portion (3) has a multiplicity? of protrusions (4) on the first face (2A) delimited by a multiplicity? of base portions (5), said composite tape comprising a length (6) of a second continuous tape (16) joined to the second face (2B) of the first continuous tape (2) at said multiplicity? of base portions (5), said composite tape presenting a multiplicity? of cavities? (7) delimited by said first continuous ribbon (2) and said piece (6) in correspondence with said printed portion (3). 3) Composite tape according to claim 2, wherein the multiplicity? of protrusions (4) defines a pattern (M) in said first face (2A). 4) Composite tape according to any one of the preceding claims, wherein the first continuous tape (2) is printed along its entire length, said segment (6) identifying said printed portion (3) in said composite tape. 5) Composite tape according to claim 4, comprising a discrete succession of segments (6) of second continuous tape (16) joined to said first continuous tape (2), each segment (6) identifying a corresponding printed portion (3) in said composite tape. 6) Composite tape according to any one of the preceding claims, wherein said molded portion (3) comprises a protrusion (4) having a bubble shape. 7) Composite tape according to any one of the preceding claims, wherein said molded portion (3) comprises a protrusion (4) having a wave shape. 8) Composite tape according to any one of the preceding claims, wherein the molded portion (3) of the first continuous tape (2) and the length (6) of the second continuous tape (16) are joined by thermal welding or thermomechanical welding or ultrasound. 9) Composite tape according to any one of the preceding claims, comprising an adhesive layer, said adhesive layer being arranged between the base portion (5) of the printed portion (3) of the first continuous tape (2) and the piece (6) of the second tape (16) continuous. 10) Composite tape according to any one of the preceding claims, wherein said base portion (5) is? external to said protrusion (4). 11) Absorbent article including: - a topsheet (201), - a waterproof backsheet (202), - an absorbent core (203) arranged between the topsheet (201) and the backsheet (202), wherein said topsheet (201) comprises a length of a composite tape (1) according to any one of the preceding claims, said length (6) of said second continuous tape (16) being disposed between the first continuous tape (2) and the core absorbent (203).