WO2021053255A1 - Machine pour fabriquer des bandes dépilatoires et procédé de commande de ladite machine - Google Patents

Machine pour fabriquer des bandes dépilatoires et procédé de commande de ladite machine Download PDF

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Publication number
WO2021053255A1
WO2021053255A1 PCT/ES2020/070555 ES2020070555W WO2021053255A1 WO 2021053255 A1 WO2021053255 A1 WO 2021053255A1 ES 2020070555 W ES2020070555 W ES 2020070555W WO 2021053255 A1 WO2021053255 A1 WO 2021053255A1
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WO
WIPO (PCT)
Prior art keywords
station
drive roller
die
traction
cutting
Prior art date
Application number
PCT/ES2020/070555
Other languages
English (en)
Spanish (es)
Inventor
Óscar LÓPEZ IGLESIAS
Hugo Marante Fondado
Original Assignee
Laboratorios Maverick, S.L.U.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Laboratorios Maverick, S.L.U. filed Critical Laboratorios Maverick, S.L.U.
Publication of WO2021053255A1 publication Critical patent/WO2021053255A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D26/00—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers
    • A45D26/0014—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers using wax
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D26/00—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers
    • A45D26/0019—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers using an adhesive element
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q9/00—Preparations for removing hair or for aiding hair removal
    • A61Q9/04—Depilatories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B26D1/405—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/023—Packaging fluent material

Definitions

  • the object of the present invention is framed in the technical field of hygiene and personal care products.
  • a depilatory strip manufacturing machine and a control method of said machine are proposed that allow continuous manufacturing of depilatory strips, guaranteeing a correct alignment of the adhesive substance on the substrate of the depilatory strips.
  • Depilatory bands generally comprise two strips of a support material, mainly composed of paper and impregnated with an adhesive substance that is what allows the hair to be removed. Generally this adhesive substance is wax.
  • the support strips have the wax impregnated only on one of their faces so that the wax is arranged between the two support strips, the wax being protected and isolated from the outside until the time the strip is to be used.
  • the user separates both support strips, obtaining two equal and evenly impregnated bands, ready for application on the skin in the area to be epilated.
  • the adhesive substance is arranged in the central part of the strip, leaving a perimeter edge free of adhesive substance.
  • the user applies the band on the impregnated face on the area where he wants to remove the hair, smoothing it in the direction of hair growth and thus adhere to the skin.
  • the band is removed with one hand forcefully (grasping it by the perimeter edge free of adhesive substance), pulling the hair out by the roots.
  • Document ES2668817 is known from the state of the art, which describes a method of manufacturing a hair removal element comprising a support substrate and a protective film, including the adhesive substance used to remove hair.
  • the procedure describes a stage of To obtain a continuous strip of the laminated type, applying the adhesive substance in portions discretely and periodically to the support substrate and then applying the protective film on the adhesive portions. Subsequently, it comprises a step of applying a cutting die to define adhesive-free lateral extensions where the cutting die passes through the support substrate and the protection film. The remaining scrap is recovered continuously by means of an accumulation roller or by gravity or suction when it is discontinuous.
  • a second substrate acts as a release liner to protect the coated substrate.
  • the second substrate may comprise a continuous web or discontinuous material that includes discrete sheets.
  • a composite structure can be created where the first surface of the substrate faces the first surface of the second substrate.
  • the discrete area of the personal care composition would be sandwiched between the substrate and the second substrate.
  • the personal care composition and the substrate are preferably different shapes with the area of the substrate larger than the personal care composition. This provides an area for the consumer to hold the substrate that is not coated in the personal care composition.
  • a blade preferably a rotary die cutter, can be used to cut the shape into the substrate.
  • a second blade can be used to cut the shape into the second substrate.
  • the scrap material can be removed from the process for recycling or disposal.
  • Document JP2004305310 is also known which describes a depilatory sheet suitable for removing hair.
  • a depilatory adhesive layer is formed on the surface of a backing sheet, and a release paper sheet in the same way as the backing sheet is superimposed on the adhesive layer in such a way that the peripheral edge of the release paper sheet snaps to peripheral edge of carrier sheet.
  • the depilatory adhesive layer is formed only in the center in the longitudinal direction, but it is not formed at least at both ends in the longitudinal direction on the surface of the backing sheet.
  • document ES2018925 describes a procedure for the manufacture of dressings for aesthetic and cosmetic purposes, consisting of a first phase of mixing the appropriate ingredients in each case, according to the treatment to be carried out, in a stainless steel tank at a temperature of 60 degrees centigrade, then in a second phase by placing a textile base on a flat and smooth totally aseptic surface, and spreading the product on it, by compression, at room temperature, then in a third phase the whole is die-cut, in the appropriate shapes to the area of the body where it is to be applied, and finally the dressings obtained will be placed in protective bags heat welded.
  • the invention relates to a depilatory strip manufacturing machine and a control method of said machine.
  • the depilatory strips that are manufactured with the machine and the procedure described are of the type that comprise a substrate, in which there is an adhesive substance, preferably wax.
  • the machine and method are preferably configured to manufacture depilatory bands with curved edges.
  • the bands are obtained by cutting, with the desired shape, the substrates already impregnated with the wax.
  • the invention allows the depilatory bands to be manufactured continuously, ensuring a correct alignment of the adhesive substance (wax) on the substrate on which it is positioned and with respect to the cutting die by which the band is obtained.
  • the strips obtained have four sides, two of them parallel to each other (the cut is made in the longitudinal direction of the strip) and two other curved sides (joining the parallel sides).
  • a coil of tape made of an elastic material is arranged in the machine, which forms the substrate of the band.
  • the adhesive substance is distributed on said tape and subsequently a cut is made, with a rotating die, to obtain the depilatory bands. It is essential that the adhesive substance is arranged centrally on the web. To do this, the usual misalignments that occur in the wax placement process and in the cutting process (punching) of the strip must be avoided.
  • the die-cutting process generates a waste (excess paper) since the reels have a greater width than the substrate of the bands to be obtained. Thus, after cutting, a negative of the bands is obtained. In this way the waste can be collected continuously and it is not necessary to install additional collection systems. It is key to keep the speed constant during the collection of the waste because otherwise the centering of the wax with respect to the shape of the band would vary.
  • the machine comprises a feeding station in which the coil of a tape of elastic material (generally paper) that is used as a substrate for the depilatory band is arranged; a station for impregnating the adhesive substance on the tape; and a cutting station in which, by means of a rotating die, the cut that forms the depilatory band is made. It also includes a continuous waste winding station.
  • a feeding station in which the coil of a tape of elastic material (generally paper) that is used as a substrate for the depilatory band is arranged; a station for impregnating the adhesive substance on the tape; and a cutting station in which, by means of a rotating die, the cut that forms the depilatory band is made. It also includes a continuous waste winding station.
  • a solution to ensure a constant speed of the belt along the path is the provision of an unwinding traction station, after the feeding station, and a waste traction station, after the unwinding station. cutting, before the winding station.
  • the control of the movement of the belt along the machine is carried out by means of servomotors that are part of the stations and that are synchronized with each other.
  • the machine comprises servo motors instead of asynchronous motors driven through frequency inverters precisely to ensure that the speed of the belt and the waste (the already trimmed belt) is the same throughout the entire run.
  • the relationship between the different axes of the stations is as synchronized as possible even though the diameters of the drive rollers of the stations are different.
  • the gearboxes between the servomotors and the mechanics coupled to them are also different.
  • the relationships must be changing to be able to implement, for example, the automatic tension control (traction) that must be varied, for example, depending on the amount of tape that remains in the reel of the input station and the amount of waste that there is at the waste collection station.
  • a dosage control of the adhesive substance has been included with the servomotor that controls a drive roller of the station. court.
  • a virtual axis has been implemented. Said virtual axis is synchronized with the servo motor of the driving roller of the cutting station (with its corresponding relationship, preferably defined by toothed wheels that drive the die). In this way, information on the degrees of rotation of the cutting die is obtained and the exact position of the cutting figures (die blades) can be controlled.
  • the virtual axis is set to 0 in each turn by detecting (for example by means of a laser detector) a specific point of the die in each complete turn. In this way, the starting point is secured on each lap.
  • the starting and ending degrees of each figure are selected so that, when connecting the machine or when necessary, a position capture mode in which the position of the drive roller encoder of the cutting station at the beginning and end of each figure is memorized with respect to the virtual axis.
  • the distance of tape traveled during each figure of the die is known.
  • the impregnation of adhesive substance in the impregnation station is calculated, thus incorporating the error between the advancement ratios of the tape with respect to the cut, in the space between each impregnation and limited to a die turn.
  • Adjusting the tension of the tape is done by controlling the unwinding tension and controlling the tension and the winding torque of the waste.
  • Figure 1 represents a perspective view of the depilatory strip manufacturing machine.
  • Figure 2 represents another perspective view of the depilatory strip manufacturing machine in which a detail of the cutting station has been represented.
  • Figure 3 represents a view of the unwinding traction system.
  • Figures 4A-B represent perspective views of the cutting station in which the die linked to the driving roller and the cutting traction system are observed.
  • the depilatory strips that are manufactured with the machine described are of the type that comprise a substrate, preferably made of a partially elastic material (such as paper), on which is an adhesive substance, preferably wax.
  • the machine and method are preferably configured to manufacture depilatory bands with curved edges. The bands are obtained by cutting, with the desired shape, the substrates already impregnated with the wax.
  • the invention allows the bands to be manufactured continuously, ensuring a correct alignment of the adhesive substance (wax) on the substrate on which it is positioned and with respect to the cutting die by which the band is obtained.
  • the adhesive substance must be centered on the depilatory strip so that the adhesive substance-free perimeter can be used by the user to grasp the strip and pull it.
  • the strips obtained have four sides, two of them parallel to each other (the cut is made in the longitudinal direction of the strip) and two other curved sides (joining the parallel sides).
  • Figure 1 shows a perspective view of the depilatory strip manufacturing machine.
  • the machine is configured to receive a roll of substrate material tape (such as paper) that is unwound and passed through a path through the entire machine.
  • the adhesive substance generally wax
  • the adhesive substance is arranged discontinuously, leaving a free space between one impregnation and the next.
  • the tape is cut, with a rotating die such as the one that can be seen in the detail of figure 2, to obtain, on the one hand, the depilatory strips and, on the other, a waste that is collected continuously.
  • the waste is the excess of the tape that has not been used as a substrate for the bands.
  • the key to the invention is to keep the speed of the belt constant throughout its journey through the machine. It must be taken into account that, as the waste is also collected continuously, the tension applied to it also affects the positioning of the belt. Since the substrate of the depilatory bands is made of a material that is at least partially elastic, it is essential to maintain this speed to avoid uncontrolled elongations that lead to cumulative misalignments. These misalignments would cause the impregnation of the wax and / or the cut not to were centered on the tape. In current machines, to minimize misalignment, the mechanical ratio is varied with a variable gearbox. That is, when a deviation in impregnation is observed, the ratios or shear moment are manually adjusted.
  • the machine of the present invention comprises a feeding station (1) with a support shaft (2) configured to receive a reel (2) of tape (4) of substrate material.
  • a tensioner (5) (unwinding traction station) that is in charge of applying a certain tension on the tape (4) to carry out the unwinding operation.
  • said tensioner (5) comprises a tensioner servomotor (6) linked to a tensioning drive roller (7) for its drive. It also comprises a tensioner pressure adjustment system (8) comprising at least one adjustment roller, facing the tensioning drive roller (7), and with the possibility of movement with respect to it to move away or approach.
  • the belt (4) passes through the adjustment roller and the tensioning drive roller (7), and the tensioner pressure adjustment system (8) applies a greater or lesser force on said belt (4) depending on the position where you place the first adjustment roller.
  • the impregnation station (9) of the adhesive substance (generally wax) as seen in Figures 1 and 2.
  • Said impregnation station (9) is configured to apply the adhesive substance discontinuously on the belt (4), for which it performs two cycles.
  • the tape (4) is impregnated, in the center of the area to be trimmed to form the depilatory band.
  • no impregnation is carried out, thus leaving a free space of wax between what will be two consecutive bands.
  • the wax impregnation station (9) comprises a circuit with a metering pump connected to a reservoir of adhesive substance and to a nozzle configured to apply the adhesive substance to the tape (4).
  • the pump is also connected to a frequency variator that allows modifying the speed of said dosing pump so that, depending on the speed, more or less adhesive substance is applied in more or less time and its weight is always the same. Right. This adjusts the amount of adhesive substance it is impregnated in each cycle.
  • the wax impregnation station (9) also has a metering valve that distributes the passage of the adhesive substance towards the nozzle, or towards the reservoir in the second cycle, thus avoiding overpressures in the circuit. It can also comprise a temperature regulation system with a plurality of thermal resistances, responsible for maintaining the desired temperature homogeneously throughout the circuit through which the adhesive substance flows to prevent it from solidifying.
  • FIGS. 4A-B show the cutting station (10) from two different perspectives.
  • the cutting station there are two drive rollers, more specifically an input drive roller (12) and a cutter drive roller (14). Each of them is coupled to a servomotor (input servomotor (13) and cutter servomotor (15).
  • Figure 4A shows the input drive roller (12), which faces a pressure adjustment system of the cutting station (13) comprising at least one adjustment roller, facing the input drive roller (12 ) and with the possibility of displacement with respect to it to move away or closer, thus adjusting the traction pressure applied on the belt (4).
  • the cutting station (10) comprises an axial adjustment system, configured to axially move the cutting station (10), or at least the die (11), to center it on the belt (4).
  • the movement can be carried out by means of threaded elements that join a support of the cutting station (10), on which It is mounted, with a fixed element of the machine, such as a machine frame, and that allow said relative movement.
  • FIG 2 it can be seen how the depilatory bands (16) are collected after punching, for example arranged on a conveyor belt (18). It is also observed how the shrinkage (17) is directed towards the next machine station, in this case a shrinkage traction station (19). As can be seen in the figure, the loss (17) is a "negative" of the depilatory bands on the tape (4).
  • the shrinkage traction station (19) is similar to the tensioner (5), that is, it comprises a traction servomotor (20) linked to a traction drive roller (21). It also comprises a traction pressure adjustment system (22) that comprises at least one adjustment roller that approaches or moves away from the traction drive roller (21) depending on the pressure to be exerted on the shrinkage (17) .
  • the waste (17) is the tape (4) left over after cutting, so the pressure exerted on it is directly linked to the speed of the tape (4) throughout the machine. As previously described, it is essential to keep the linear displacement speed of the thinning constant to ensure correct centering of the adhesive substance on the depilatory band.
  • the machine comprises a winding station (23) shown in figure 5.
  • This station is configured to wind the waste (17) by controlling, by means of a machine control unit, the torque of a shaft of collection (24) around which it is wound.
  • the collection shaft (24) is linked to a collection servomotor (25) by means of a transmission system (26).
  • a transmission system (26).
  • It also comprises an inflation system to be able to hold the shrinkage (17) without the need for additional fastening elements.
  • To remove the shrink coil (17) it is only necessary to deflate some membranes of an inflation system of the machine and remove it.
  • the shrinkage traction station (19) is essential to prevent tension variations caused by the winding station (25) from damaging the cutting operations due to the elasticity of the tape (4).
  • the machine also includes a control unit that is configured to manage and control all the elements that make up the machine.
  • the servo motors of the machine work in a closed loop, controlled by servo drives (drivers) that are in communication with each other through the control unit. These elements work with instructions in real time.
  • servomotors have been used instead of asynchronous motors driven with frequency variators to ensure constant speed of the belt (4) and waste (17).
  • the relationship between all the traction axes of the belt (4) is as synchronized as possible taking into account the diameters of the different driving rollers (tensioning driving roller (7), input driving roller (12) , cutter drive roller (14) and traction drive roller (21)) are different and so are the reducers between servomotors (the servomotors are coupled to the shafts through reducers to obtain enough torque) and the mechanics applied to servo motors.
  • the tensioner relationships must be changing to be able to implement the tension control applied to the belt automatically.
  • the control of the dosage of the wax is carried out by means of an encoder of the servo motor of the cutter (15) (which is the servo motor on which the others depend, that is, the master servo motor).
  • an encoder of the servo motor of the cutter (15) which is the servo motor on which the others depend, that is, the master servo motor.
  • precise control of the movement of the tape (4) on the drive roller of the cutter (14) is carried out, thus improving the impregnation precision.
  • this solution by itself does not allow to solve the problem of the accumulated error between the relations of the cutting station (10) and all the driving rollers in charge of moving the belt (4) along the entire path.
  • a virtual axis synchronized with the drive roller of the cutter (14) is implemented (with its corresponding relationship, preferably defined by the toothed wheels that drive the die (11)).
  • This virtual axis allows to know the position of the blades of the die (11) electronically since the sevomotor of the cutter (15) is coupled to a reducer with which, through a transmission gear (for example with two pinions ) is linked to the cutter roller (14).
  • a transmission gear for example with two pinions
  • the virtual axis is reset to zero in each turn after the detection, by a laser detector, of a specific point of the die (11) in each complete turn, thus ensuring the starting point in each turn.
  • a position capture mode is executed that comprises a step of memorizing the position of the virtual axis and the encoder of the drive roller of the cutter (14) at the beginning and at the end of each cutting figure (which determines the shape of a depilatory band) to know the distance of tape (4) traveled during the length of each figure of the die (11). Based on these values, the impregnation of the wax is controlled, managing to incorporate the error between the advance relationships of the tape (4) with respect to the die (11), in the space between each impregnation and always limited to one die turn ( eleven).
  • the control method allows to control the unwinding tension (that is, the tension applied to the tape (4) in the tensioner (5) by means of a “tenser” system (electronic tension control system of the belt (4)) that allows to separate a variable corresponding to the weight of the reel (2) from a tension variable on the belt (4).
  • a “tenser” system electronic tension control system of the belt (4)
  • the torque applied by the servo motor of the cutter is monitored in real time (15) when pulling the belt (4) to be able to vary in real time the ratio of the tension drive roller servo motor (6) with with respect to said servo motor of the cutter (15), looking for a predetermined torque command, entered through a user interface.
  • the control method of the present invention can also comprise a step of control of the winding tension of the waste (17) that allows to obtain a high precision in the position of the cut with respect to the adhesive substance already impregnated.
  • This control is carried out by synchronizing the speed of the belt (4) in the cutting station (10) and the speed of the belt (4) in the shrinkage traction station (19).
  • a control of the winding torque of the waste is also carried out (17).
  • the waste (17) is wound, as an output coil (27) on a collection shaft (24).
  • the diameter of the output reel (27) increases as the amount of waste (17) increases (proportional to the decrease in diameter of the reel (2) of tape (4) of the feeding station (1)). Due to said changing diameter, it is not possible to make a synchronism with the driving roller of the cutter (14) (from which the other elements of the machine are controlled) since the transmission ratio changes at each turn.
  • the width of the shrinkage (17) is very small since the excess of the tape (4) must be as little as possible to reduce manufacturing costs. This leads to shrinkage breaks (17) as soon as the tension is slightly increased.
  • the control method comprises a winding torque control stage so that the pick-up servomotor (25) only applies the desired torque entered through the user interface, applying an increase and decrease ramp of the winding torque. applied torque. That is, the voltage deviations are corrected to bring the torque parameter to a predetermined value but in a "smooth" way, without sudden changes that would cause a breakdown of the loss (17). In this way, the complete waste (17) is wound correctly.
  • This is an additional control by which the factor that the diameter of the take-up reel (27), as it changes, varies the speed of the shrinkage (17) (also affecting the speed of the belt (4) is eliminated. ) along the path of the machine) and may break it. For this reason, it is essential to control the torque, that is, to control the force applied to the belt (4) and the loss (17) so that it does not break.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Forests & Forestry (AREA)
  • Dermatology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cosmetics (AREA)

Abstract

La présente invention concerne une machine pour fabriquer des bandes dépilatoires qui comprend une station d'alimentation (1) d'un ruban (4) de substrat des bandes, une station d'imprégnation (9) d'une substance adhésive sur le ruban (4); uns station de coupe (10) pour effectuer le découpage du ruban (4) et former des bandes dépilatoires (16) et un déchet (17) et une station de bobinage (19) du déchet (17) La machine comprend un dispositif de tension (5) qui participe au débobinage et une station de traction (19) de déchet avant la station de bobinage (23). Les stations comprennent des servomoteurs qui sont en communication en temps réel entre elles au moyen d'une unité de commande de la machine. La machine évite les erreurs d'alignement de la substance adhésive sur la bande y compris sur des rubans (4) de matériau élastique. L'invention concerne également un procédé de fabrication de ladite machine.
PCT/ES2020/070555 2019-09-17 2020-09-16 Machine pour fabriquer des bandes dépilatoires et procédé de commande de ladite machine WO2021053255A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP201930804 2019-09-17
ES201930804A ES2812600B2 (es) 2019-09-17 2019-09-17 Maquina de fabricacion de bandas depilatorias y metodo de control de dicha maquina

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WO2021053255A1 true WO2021053255A1 (fr) 2021-03-25

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4824702A (en) * 1986-06-11 1989-04-25 Straub Dale K Transfer adhesive sheet material
US5842469A (en) * 1997-07-03 1998-12-01 Rapp; John D. Method for extending the useful life of a nasal dilator
US20130150867A1 (en) * 2010-05-31 2013-06-13 E.V.F. Delacour Bv. Method manufacturing an epilatory strip and strips obtainable by the method
EP2749186A1 (fr) * 2012-10-31 2014-07-02 Cosmewax S.A. Système de comptage de bandes dépilatoires avec double lames
ES2668817T3 (es) * 2014-10-23 2018-05-22 Cosmewax, S.A. Procedimiento para la obtención de un elemento de depilación

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4824702A (en) * 1986-06-11 1989-04-25 Straub Dale K Transfer adhesive sheet material
US5842469A (en) * 1997-07-03 1998-12-01 Rapp; John D. Method for extending the useful life of a nasal dilator
US20130150867A1 (en) * 2010-05-31 2013-06-13 E.V.F. Delacour Bv. Method manufacturing an epilatory strip and strips obtainable by the method
EP2749186A1 (fr) * 2012-10-31 2014-07-02 Cosmewax S.A. Système de comptage de bandes dépilatoires avec double lames
ES2668817T3 (es) * 2014-10-23 2018-05-22 Cosmewax, S.A. Procedimiento para la obtención de un elemento de depilación

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ES2812600B2 (es) 2022-10-04

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