MX2014008196A

MX2014008196A - Hair colorant container in the form of a flexible sachet.

Info

Publication number: MX2014008196A
Application number: MX2014008196A
Authority: MX
Inventors: George Scott Kerr; Alton Lloud Finley; Thorsten Blum
Original assignee: Procter & Gamble
Priority date: 2012-01-04
Filing date: 2013-01-03
Publication date: 2014-09-26
Also published as: BR112014016628A8; US20130167865A1; CA2861800C; JP2015509063A; CN104039663B; US20130167864A1; EP2612825A1; EP2800711A1; CN104039663A; BR112014016628A2; WO2013103625A1; MX361049B; JP6433296B2; WO2013103622A1; EP2612825B1; CA2861800A1

Abstract

A hair colorant container (10) in the form of a flexible sachet having a laminate structure for storing a hair colorant component comprises: a reservoir (2) with an internal volume (13) for storing the hair colorant component, a pouring spout (14) being in fluid communication with the internal volume and having an dispensing end (16) for dispensing the hair colorant component, the pouring spout being integrally formed with the reservoir and projecting from an upper side of the reservoir and having an elongated shape with a width being smaller than the width of the reservoir, and a removable tear tab (18) at the dispensing end for sealing the container before the container has been opened. The pouring spout further comprises at least one re-sealing element (48) for reclosing the dispensing end once the tear tab has been removed. The re- sealing element has a stiffness being greater than the stiffness of the laminate structure.

Description

COLORING CONTAINER FOR HAIR IN THE FORM OF A SACHET FLEXIBLE FIELD OF THE INVENTION In a first aspect, a hair dye package is provided in the form of a flexible sachet having a laminated structure for storing a hair coloring component.

In a second aspect, there is provided a colorant product for the packaged hair comprising said hair coloring container and a hair coloring component contained in the internal volume of the reservoir of the container.

In a third aspect, a case is provided to provide a ready-to-use color product for the hair; the kit comprises a first package with a hair coloring package containing a hair dye component and a second package, preferably a bottle or a hair coloring package containing a developer component comprising an oxidizing agent.

BACKGROUND OF THE INVENTION Dye products for oxidative dyeing of keratin fibers, such as hair, are usually provided by the use of a kit comprising a hair dye component and a developer component with an oxidizing agent. The hair dye component, the developer component as well as ready-to-use "direct dyes" collectively refer to "hair coloring components" hereinafter. Typically, the hair dye component in the form of a sticky cream is stored in an aluminum tube or in a plastic bottle, e.g., made of PVC, and the developer component is usually provided in a plastic bottle. To obtain a ready-to-use hair coloring product, the hair dye component must be dispensed into the bottle containing the developer component. The hair dye component and the developer component are mixed in the bottle before applying to the hair.

As the hair coloring components, ie, the hair dye component, the developer component as well as the "direct dyes" are relatively reactive, the package must be chemical resistant and exhibit excellent barrier properties.

The aluminum tubes meet these requirements due to the thick metal walls in combination with the protective varnish; however, aluminum tubes or bottles made of plastic materials, for example PVC have the disadvantage of being undesirable from an ecological point of view. Particularly, the manufacturing process has a very high cost and energy use and the weight of the container is relatively high, in that way, it entails high transportation costs. Furthermore, from a functional point of view, due to the thick walls and rigid portions of the neck, these containers are difficult to tighten and completely dispense; in this way, it leads to the hair coloring component remaining in the container. In particular, bottles made of plastic materials can be used only for fluids of low viscosity.

Therefore, there is a need to provide an improved package for store coloring components for the hair, ie, hair dye components as well as developer components. Particularly, the hair dye container should have the ability to provide a safe dispense or discharge of the hair coloring component in a container, such as a bottle. The package should be easy to grasp and use in general and can be manufactured in an easy and economical way. In addition, packaging must meet sustainability requirements, for example, it must have ecologically desirable properties in terms of production and disposal. In addition, the hair dye container may be closed, again, after being opened by the consumer.

BRIEF DESCRIPTION OF THE INVENTION In a first aspect, the present invention relates to a package of hair dye in the form of a flexible sachet having a laminated structure for storing a hair coloring component. The packaging of hair dye comprises: a reservoir with an internal volume to store the coloring component for the hair, a pouring spout that is in continuous communication with the internal volume and has a dispensing end to dispense the coloring component for the hair, The spout is formed, integrally, with the reservoir and projects from an upper side of the reservoir and has an elongated shape with a width less than the width of the reservoir, and a removable tab at the dispensing end to seal the reservoir. container before the container is opened.

The pouring spout comprises at least one resealing element to close, again, the dispensing end when the release tab has been removed. The reseal element has a stiffness that is greater than the stiffness of the laminated structure.

In a second aspect, the present invention relates to a colorant product for packaged hair comprising said hair coloring container and a hair coloring component contained in the internal volume of the reservoir.

In a third aspect, the present invention relates to a case for providing a ready-to-use hair coloring product. The kit comprises first and second packages wherein the first package is a package of hair dye according to the present invention that contains a hair dye component, and the second package is a bottle or a dye package for hair. the hair according to the present invention containing a developer component.

DETAILED DESCRIPTION OF THE INVENTION A package of hair colorant according to the present invention comprises a reservoir with an internal volume and a pouring spout on the upper side of the reservoir for dispensing, that is, discharging the hair coloring component contained in the reservoir. The pouring spout is formed integrally with the reservoir and projects with an elongated shape from an upper edge, ie, the upper side of the reservoir. The width of the spout is less than the width of the reservoir, through which the pouring spout can be inserted into a bottle neck. a second package. An internal flow channel of the spout is in continuous communication with the internal volume of the reservoir.

To provide a tight seal prior to the use of the hair coloring component, a release tab is placed on the dispensing end of the pouring spout.

Since the width of the spout is relatively small, a package of hair colorant with a relatively short detachment distance is provided so that the fingers of the user control the opening action, ie, when the tongue is removed. removable. To remove the release tab, the fingers of one hand rest under the dispensing end of the spout, while the fingers of the other hand remove the release tab.

The hair dye package is manufactured from a laminated structure that results in the flexibility characteristics of a sachet. The laminated structure is chemically resistant to the coloring component for the hair, that is, the laminate is compatible with the component supplied in the sachet. The sachet can be designed as a flat and inclined bag, that is, of the pillow type, which is easy to store as a bag in vertical position, that is, with a vertical configuration comprising a base to support the sachet in the vertical position . A vertical sachet is advantageous to handle, particularly, it can be set aside when the release tab is removed without spilling the hair coloring component.

The sachet can be manufactured from a piece of flexible laminate bent at one longitudinal and joined edge, ie, sealed together with the remaining open edges and, thereby, provide a so-called "three-sided seal".

However, the laminate can also be bent at the two opposite longitudinal edges and sealed on the back side of the container and, thereby, provide a so-called "fin seal". The use of a piece of laminate that bends in at least one external longitudinal edge results in a reduction of laminate material during the production process of the sachet.

However, a container with a "fin seal" is preferred since the capacity of the container is increased. In addition, since the longitudinal edges can be inflated, more easily, during the filling process, the filling speed of the hair coloring compound in the package is likewise increased.

However, the flexible sachet can also be made of two pieces of flexible laminate that are stacked one on top of the other and are joined, that is, sealed, on their outer circumference.

In relation to the reservoir, the spout can be located symmetrically, that is, in the center or can be located, asymmetrically. Preferably, the pouring spout is aligned with an external longitudinal edge of the reservoir that is bent along said edge.

Generally, the peak, i.e., the width of the peak, comprises a sealing portion and a flow channel portion. A symmetrical, ie centric, peak comprises two sealing portions and a flow portion, while a peak aligned with the outer longitudinal edge comprises only one sealing portion and a flow channel portion as the sealing function on the side remaining is provided by the edge of the laminate. To maximize the flow channel relative to a given peak diameter, the peak aligned with the outer edge is preferred, which allows a wider flow channel and, subsequently, an easier waste or discharge experience.

The hair coloring package of the present invention is easy to manipulate and weighs less than the equivalent rigid containers mentioned in the description of the material. It requires, among others, less material as well as less amount of energy for manufacturing and transport and, in this way, the sustainability and cost reduction requirements are met.

The pouring spout comprises at least one resealing element to close, again, the dispensing end when the release tab has been removed.

It is advantageous to provide a resealing feature in view of the requirement to conduct an allergy test 24 hours before applying the hair colorant product ready for use to the hair. To conduct an allergy test, the consumer removes a certain amount of the hair coloring component from the container and applies it to the skin to examine if skin irritation occurs. In addition, some consumers prefer not to use the hair coloring component in a single dose, but in a separate dose, i.e. multiple doses, for example, to dye the hair roots. After conducting the allergy test or after removing a certain amount of the hair coloring component for other purposes, the consumer can again close the container to store the contents in a safe manner. In addition, the exposure of the hair coloring component to air and, particularly, to oxygen is limited; In this way, the content of the sachet is protected from oxidation.

The reseal element for closing, again, the dispensing end has a stiffness that is greater than the stiffness of the laminated structure. The term "stiffness" is defined as the hardness of the reseal element, that is, to what extent the pouring spout resists deformation in response to an applied force. In other words, stiffness is a measure of the resistance offered by the spout to the deformation. The hardness of the reseal element provides, when closed, again, the pouring spout, a secure and hermetic closure.

The reseal element can be integrally formed with or can be attached to the hair dye container. The reseal element extends at least partially along the length of the spout and crosses a bending line along which the pour spout can be bent and oriented towards the reservoir. In addition, the reseal element can pass to the reservoir, i.e., extend at least partially along the length of the reservoir.

Preferably, the pouring spout is closed, again, by bending the pouring spout towards the external surface of the reservoir. Due to the increased stiffness or hardness of the resealing element compared to the flexibility of the laminated structure, the pouring spout remains in contact with the outer surface of the reservoir and does not bend again. In other words, the stiffness or tension of the reseal element keeps the pouring spout in the bent up position. When the package of hair dye is closed again, the internal flow channel of the pouring spout is practically blocked; in that way, the leakage of the coloring component for the hair is prevented.

To obtain a ready-to-use hair coloring product suitable for application to a consumer's hair, a hair dye component must be mixed with a developer component. Preferably, the hair coloring product can be an oxidant hair colorant, wherein the dye component is used in combination with a developer component comprising an oxidizing agent, i.e. oxidative, commonly a peroxy oxidizing agent. Thereby, a case comprising a first and second package containing the hair dye component and the developer component, respectively, is provided. The first package is a container of coloring for the hair according to the present invention and the second container can be a package of hair colorant, as well as, a bottle. Preferably, the second package is a bottle comprising a bottle neck with an opening.

The user can easily open the flexible sachet containing the hair dye component by holding the sachet in the region of the spout and by removing the detachable tongue. After opening the sachet, the hair dye component can be dispensed into the bottle by inserting the spout into the opening of the bottle neck.

Due to the increased stiffness of the reseal element, the hair dye package exhibits improved handling properties. When the package of hair dye is in a straight position, the spout keeps said position straight. In this way, the spout can easily be inserted into the bottle neck, preferably by the use of a single hand. The reservoir of the container can be tightened, easily, since it has flexible characteristics. Therefore, the hair coloring product is easier to discharge in its entirety compared to containers of the state of the art.

Preferably, the pouring spout has an outer perimeter that fits into at least one defined section of an internal perimeter of the opening of the bottle for coupling the sachet to the bottle. That means that the outer perimeter of the peak adapts to the internal perimeter of the opening of the bottle so that at least one defined section of the outer wall of the peak bears against the inner wall of the bottleneck. This facilitates an easy and safe action of waste or discharge. More preferably, a frictional fit between the outer wall of the spout and the inner wall of the bottle neck is provided so that the sachet receives support from the bottle during the waste operation.

Preferably, the outer perimeter of the spout has a profile that can be extended to an oval shape. In this way, a defined circumferential section of the outer wall of the spout does not rest against the inner wall of the bottle neck but leaves an open passage through which air can be released from the inside of the bottle during dispense or discharging of the component of hair dye. Therefore, a fast and complete expenditure is allowed in an orderly manner.

More preferably, the hair dye package comprises a notch cut to open by inclined tear between the dispensing end of the pour spout and the release tab. When the spout is inserted into the bottleneck in a substantially flat condition, the notch cut to open by inclined tear ensures that the upper end of the spout has a width that is narrower than the inner diameter of the bottleneck. The angle allows easy insertion of the beak. Through the coupling action, the peak is pushed against the inner wall of the bottleneck and facilitates the opening of the peak profile.

Preferably, the width of the reservoir is about 40% to about 60%, more preferably, about 50% of its height and, moreover, preferably, the width of the elongated shape of the pouring spout is about 40% to about 100%, more preferably, approximately 75% of its height.

Particularly, the reservoir can have a width of about 5 cm to about 9 cm and a height of about 11 cm to about 16 cm, while the spout can have a width of about 1.5 cm to about 2.5 cm and a height of about 1.5 cm to approximately 3 cm. More preferably, the external width of the spout is approximately 1.6 cm and the internal width of the spout, ie, the width of the spout.

Flow channel is approximately 1.4 cm.

Thus, on the one hand, the internal flow channel of the spout is as wide as possible to allow easy and fast dispense and, on the other hand, the width of the spout is in line with the opening diameter of a bottle having a defined internal standard neck diameter of approximately 1.7 cm in which the peak should be inserted to dispense the hair coloring component. These dimensions lead to a container of hair dye that is easy to handle, for example, easy to open and easy to insert into the bottle. In contrast to this, aluminum tubes in accordance with the state of the matter typically have peak diameters of less than about 1 cm. In addition, the peak of the tube is relatively short and can be inserted only a short distance. This can lead to an uncontrolled movement of the aluminum tube peak during the waste action, thereby increasing the possibility of depositing the hair coloring component on the inner walls of the bottleneck or even the coloring component for the hair spills out of the neck and deposits on the outside of the bottleneck.

The dimensions mentioned above of the hair dye packaging have the advantage that a plurality of packages can be stored in a compact form. Particularly, the hair dye package can be packaged in a box together with a second package, such as a bottle, so as to save space.

Preferably, the hair dye package is provided or offered in a pre-bent form, that is, in a state in which the spout peak is bent towards the exterior surface of the reservoir. In this way, the hair dye package can be offered in a more compact or space saving form.

In addition, the consumer receives information or indications regarding the use of the reseal element, that is, how to perform the sachet reclosure. The hair dye package provides intuitive opening and reclosing of the pouring spout.

According to one embodiment, the reseal element can be a metal strip, plastic strip, band, adhesive jaw, plastic flange, rigid non-permanent adhesive bonding tab and / or an additional rigid layer attached to or inserted into the laminated structure.

Preferably, the adhesive clamp comprises a tape having one side of the tape coated with an adhesive substance and a fastening strip of non-resilient material that can be bent attached to the adhesive side of the tape. The other side of the ribbon is attached to the outer surface of the spout. Preferably, the tape is wider and longer than the fastening strip to seal a perforation of the laminated structure by an edge of the fastening strip. Preferably, the tape and / or the adhesive substance can be transparent so that impressions on the outer surface of the spout are visible. Preferably, the adhesive jaw may comprise an area printed on the tape in the area of the fastening strip. Preferably, the print comprises at least one fold mark indicating the fold line along which the pour spout should be bent. Preferably, the printed area is non-transparent and, in addition, preferably, slightly larger than the fastening strip for covering and hiding the fastening strip when viewed from the side of the adhesive jaw.

If the reseal element is a plastic flange, the plastic flange is preferably attached to the outer surface of the spout and extends downward and along a specific distance on the outer surface of the reservoir. When the release tab is removed and the container must be closed, again; The spout can be folded along the bend line and oriented towards the reservoir. The tension of the plastic flange keeps the pouring spout in a bent position.

If the reseal element is an additional rigid layer inserted into the laminated structure it could provide a reseal element that is not visible to the consumer.

In addition, the kit for providing a ready-to-use hair colorant may further comprise a hose within which the hair colorant container can be inserted after the spout has been bent and oriented against the reservoir. The cuff also prevents the spout from unfolding.

According to one embodiment, the hair coloring component is a component of hair dye, a developer component or a direct dye.

The hair dye package is suitable for use for storing a hair dye component, preferably, a hair dye oxidizing component, or a developer component comprising an oxidizing agent, commonly, a peroxy oxidizing agent. However, the hair dye package can also be used to store so-called "direct dyes", which are ready to use and can be applied directly to the hair. Particularly, the laminated structure is resistant to chemicals of the hair dye component as well as to the developer component. In addition, the hair dye packaging is suitable to use to store all types of hair coloring components, i.e. high or low viscosity fluids, such as liquids or pastes, i.e., creams. In this way, a package of hair dye is provided, which is capable of replacing, i.e., replacing an aluminum tube containing a component of hair dye and a PVC bottle containing a developer component.

According to one embodiment, the detachment tongue is integrally formed with the pouring spout.

Preferably, the detachment tab is aligned with an outer edge of the pouring spout and extends in a direction orthogonal to the outer edge of the spout.

This mode provides an ergonomic design that allows the user to open, easily, the container. The sachet has an asymmetrical shape and is preferably manufactured from a piece of a flexible laminate folded along a longitudinal edge, the fold forming an alignment of the reservoir, spout and detachment tab. In other words, the longitudinal edge forming the alignment has a joint, which would decrease the width of the internal flow channel relative to a given width of the peak. In this way, the width of the internal flow channel is maximized in relation to the width of a given internal opening of a second package in which the peak should be inserted. The relatively large width of the internal flow channel allows for easier and faster dispense and contributes to a positive experience for the user.

According to one embodiment, the hair dye package comprises a predefined detachment line between the detachment tab and the dispensing end of the pouring spout along which the detachment tab is released when the package is opened.

To facilitate the opening of the package, that is, to reduce the force required for detachment, a release aid can be provided at the dispensing end by means of a notch to tear open, perforate, drill or laser cut to guide the detachment, orientation of individual layers of material, for example, use of films of easy detachment such as a polyethylene sealing layer or use of aluminum such as, for example, a guide material. This allows easy initiation as well as good control of the detachment direction during opening. A notch to tear open, for example, in the form of a simple cut, triangular cut or semicircular cut creates a point of focus for the applied force of the user and facilitates the initiation of the detachment process.

However, the design of the package allows the use of accessories such as scissors, leaves or knives for opening. Consequently, the cut through the laminated structure of the sachet results in defined edges.

According to a modality of the pourer spout of the hair dye packaging comprises a grip area on the external surface of the spout spout that extends, practically, along the full width of the elongated shape and adapts with its dimensions to the fingers of a user to hold or grasp the spout with fingers when removing the detachable tongue; in that way, the opposite walls of the pouring spout are pressed together and, thus, protection against spillage or splash is provided, i.e., spill prevention.

As the grip area extends, practically, along the full width of the elongated shape of the peak and adapts with its dimensions to the user's fingers, the internal flow channel of the spout can be blocked when the user grasps the peak pouring through his fingers. By holding the spout, the opposite walls of the spout are pressed together, thereby practically preventing the hair coloring component from spilling out of the reservoir when the release tab is removed. In this way, the fingers of the user act as a temporary valve element.

When positioning the fingers in the manner described above, practically no pressure is applied to the reservoir that could lead to an immediate volume change that increases the risk of spillage. In contrast, the user's fingers are directed towards areas of the peak that do not contain substantial amounts of hair coloring component when the sachet is held in a vertical position, thus preventing the hair coloring component from moving. due to the pressure. The hand that is holding the package below the detachment line acts as a valve by holding the beak firmly; in that way, substantial movement of the hair coloring component is prevented. Accordingly, a prevention against spillage is provided as well as an easy-to-open sachet.

To open the package of hair dye, the following method can be applied: The pouring spout is held in the grip area with the fingers of a user's hand, thus, the opposite walls of the pouring spout are pressed together and A prevention against spillage is provided. Next, the release tab is removed from the dispensing end with the fingers of the other hand. Notably, the fingers of the first hand rest below an imaginary detachment line that preferably covers the full width of the spout and, therefore, interact with the detachment movement on the imaginary detachment line in a similar manner. to the scissors.

According to one embodiment, the spout peak comprises at its inner perimeter at least one flow restrictor for restricting the flow of the hair coloring component when the component is dispensed.

Preferably, the flow restrictor can be provided if the hair coloring component stored in the reservoir has low viscosity, such as liquid hair dye components. By means of a flow limiter, the width of the internal flow channel is reduced, thus preventing spillage during the opening action as well as a limited flow regime of the hair coloring component when dispensed. The pouring spout is still adapted to the opening of a second package while providing a flow restriction that leads to an uncluttered waste. In other words, by means of a flow limiter, the same flow rate can be provided for hair coloring compounds with different viscosities.

The flow limiter may have the form of a recess, slit, notch or protrusion, for example. The shape, ie, geometry of the flow restrictor at the desired flow rate of the hair coloring compound. The flow limiter is easy to integrate into the spout. Preferably, the flow restrictor can be provided by interchangeable and removable sealing bars integrated into the manufacturing tools.

According to one embodiment, the at least one flow limiter is formed as a protrusion projecting into the spout.

Said protuberance projects within the internal flow channel, thereby limiting the flow passage in the spout.

According to one embodiment, at least two protuberances are formed in a stepped configuration.

The stepped configuration of at least two protuberances further limits the flow rate of the hair coloring component. The protuberances can be configured in an overlapped or non-overlapped manner. An overlapped configuration provides an additional limitation of the flow rate.

In accordance with one embodiment, the laminated structure of the container of Hair colorant comprises at least three layers, preferably four layers.

The hair dye package is made from a laminated material comprising a multi-layered structure. The different layers may have various properties that contribute to the overall property of the laminate. For example, the laminated material may comprise three layers, namely, a sealing layer, a barrier layer and a protective layer. The barrier layer can be made from a plastic or aluminum material, since both have excellent barrier properties.

Preferably, at least one layer of the laminated structure is made of a plastic material, preferably of polyethylene or polypropylene. The plastic material typically consists of polymers of high molecular weight and may contain other substances to improve performance and / or reduce costs. The polymers are made of monomers that can be natural or synthetic organic compounds. Plastic materials, such as polyethylene or polypropylene, are advantageous materials since they provide sufficient mechanical strength to withstand the mechanical stress caused, for example, by transportation, handling and storage under varying conditions of temperature and humidity. Furthermore, hair colorant packages made from plastic materials, preferably polyethylene or polypropylene, have a low net weight and, therefore, allow a reduction in transport costs compared to equivalent rigid containers.

In addition, at least one of the plastic layers can be produced by means of a foaming process by extrusion. The process of foaming by extrusion results in an increased thickness of the plastic layer without increasing the consumption of material and, thus, resolves the conflict between the need to reduce weight and use of material on the one hand and improve the thickness of the container wall on the other hand.

According to one embodiment, the laminated structure of the hair dye packaging comprithree layers, wherein the first layer facing the interior of the package compriacrylic acid polymer of ethylene or polyethylene, or ethylene methacrylic acid polymer or combinations thereof; the second layer after the first layer comprialuminum; and the third layer after the second layer and facing the outside of the package compripolyamide or polyester, preferably polyethylene terephthalate, or combinations thereof.

Preferably, the first layer compripolyethylene and about 5% by weight to about 10% by weight of ethylene or polyethylene methacrylic acid polymer and about 5% by weight to about 10% by weight of ethylene acrylic acid polymer. Said composition of materials contributes to improve the bonding properties with aluminum, i.e., barrier layer. This composite of layers results in a significant reduction of corrosion and / or migration of particles of the hair coloring component, such as dye pigments, surfactants and aqueous ammonia solution. Preferably, the first and second layers are joined together by means of extrusion lamination. This results in a laminated structure sufficiently resistant to chemical stress, for example, oxidation as mechanical stress.

In addition, the first layer can be produced by means of a extrusion foam forming process. The foaming process results in an increased thickness of the first layer without increasing the material consumption.

According to one embodiment, the laminated structure of the hair dye packaging comprifour layers, wherein: the first layer facing the interior of the package compriacrylic acid polymer of ethylene or polyethylene, or ethylene methacrylic acid polymer or combinations thereof; the second layer after the first layer compriacrylic acid polymer of ethylene or polyethylene, or combinations thereof; the third layer after the second layer comprialuminum; and the fourth layer after the third layer and facing the outside of the package compripolyamide, polyester, preferably polyethylene terephthalate, or combinations thereof.

Preferably, the first layer is a polyethylene layer and can have a thickness of about 70 μm to about 100 μm. The first layer can be produced by means of a extrusion foaming process. The foaming process results in an increased thickness of the layer by the use of the same amount of plastic material.

The second layer can have a thickness of approximately 18 μp? at about 25 p.m. and comprising polyethylene and ethylene or polyethylene methacrylic acid polymer and ethylene methacrylic acid polymer. The aluminum layer, ie, the third layer acts as a barrier layer and may have a thickness of about 9 μm. The specific composition of the second layer contributes to the bonding properties with the aluminum layer. Said layer composite results in a significant reduction of corrosion and / or migration of particles of the hair coloring component, such as dye pigments, surfactants and aqueous ammonia solution.

Preferably, the first, second and third layers are joined together by extrusion lamination means. Said laminated structure results in sufficient resistance to chemical and mechanical stress.

The fourth layer can be made of polyamide with a thickness of about 5 μm or of polyethylene terephthalate with a thickness of about 12 μm. Preferably, the fourth layer is joined to the third layer by means of adhesive lamination. Preferably, the overall thickness of the laminate is about 100 μm to about 150 μm.

In addition, the fourth layer may comprise a print applied on the surface facing the aluminum layer so as to protect the print against abrasion. Since the fourth layer has a transparent appearance, printing can even be seen from the outside.

BRIEF DESCRIPTION OF THE FIGURES The present invention is described in more detail below with reference to illustrative embodiments, wherein: Figure 1 shows a rear view of one embodiment of the hair coloring package; Figure 2 shows a front view of a hair dye package with a snap and seal closure; Figure 3 shows the front view of another embodiment of the hair dye package with a plastic flange as a reseal element; Figure 4 shows the front view of another package of hair dye with a hook and loop band closure; Y Figure 5 shows another embodiment of the hair coloring package with a flow limiter.

DETAILED DESCRIPTION OF THE INVENTION AS SHOWN IN THE MODALITIES OF THE FIGURES Figure 1 shows a package of hair dye 10 in the form of a flexible sachet for storing a hair coloring component, i.e., a hair dye component, a developer component or a "direct dye". The package 10 comprises a reservoir 12 with an internal volume 13, a pouring spout 14 that is in continuous communication with the internal volume 13 and has a dispensing end 16 and a removable tear-off tongue 18. The release tongue 18 is attached to the dispensing end 16 to seal the container 10 before the container 10 is opened.

The spout peak 14 and the release tab 18 are integrally formed with the reservoir 12 and aligned on an external longitudinal edge 30 of the reservoir 12. The spout peak 14 projects from an upper side 20 of the reservoir 10 and has an elongated shape with a width 22 that is smaller than the width 24 of the reservoir 10. The detachable tab 18 is placed on the dispensing end 16 perpendicularly relative to the pouring spout 14.

In addition, the pouring spout 14 comprises a gripping area 26 that extends, practically, along the width 22 of the spout 14 and adapts with its dimensions to the fingers of a user. In this way, the container 10 is easily opened by holding the container 10 in the region of the pouring spout 14, mainly in the grip area 26 and, thus, prevention against spillage is provided. By holding the spout 14, the fingers of the user act as a temporary valve element. The opposite walls of the peak 14 are pressed together, in that way, practically prevents the hair coloring component from spilling from the reservoir 12 when the release tab 18 is removed.

After opening the package 10, the hair coloring component can be dispensed into a second package, such as a bottle, to provide a coloring product for already mixed hair.

To facilitate removal of the release tab 18, a pre-defined detachment line 28 is provided between the release tab 18 and the dispensing end 16 of the pour spout 14. The predefined release line 28 can be provided by means of a notch to open by detachment , perforations, perforated or laser cut for a detachment guide, specific orientation of individual material layers, for example, the use of easy release films such as a polyethylene layer or the use of aluminum as a guide material, example. This allows an easy detachment start as well as a controlled detachment direction. The package 10 according to Figure 1 shows a detachment opening notch 36 which creates a central point for the applied force of the user and makes it easier to initiate detachment.

The width 24 of the reservoir 12 is approximately 6.5 cm and the height 38 of the reservoir 12 is approximately 11 cm, while the spout peak 14 has a width 22 of approximately 1.6 cm and a height 40 of approximately 3 cm. The internal width of the peak 14, ie, of the flow channel 42 is approximately 1.4 cm. Thus, on the one hand, the internal flow channel 42 of the pouring spout 14 is as wide as possible to allow easy and rapid dispense and, on the other hand, the width of the spout 22 is in line with the opening diameter of a bottle having a defined internal standard neck diameter of approximately 1.7 cm in which the peak 14 must be inserted to dispense the hair coloring component.

The outer perimeter of spout peak 14 has a profile to expand to an oval shape. Thus, a defined section of the outer wall of the spout 14 does not rest against the inner wall of the bottle neck but leaves an open passage through which air can be released from the inside of the bottle during dispense or discharge of the bottle. hair dye component. Therefore, a fast, complete and disorder-free wastage is allowed.

When the spout 14 is inserted into the bottleneck in a substantially flat condition, the notched cut to open by inclined tear 36 ensures that the upper end of the spout 14 has a width 22 that is narrower than the inner diameter of the spout neck. bottle. The inclined groove 36 allows an easy insertion of the beak 14. By means of the coupling action, the beak 14 is pushed against the internal wall of the bottleneck and the opening of the beak profile is facilitated.

The package 10 is made of a flexible laminate structure 44 comprising at least three layers, preferably four layers. The laminate 44 of the present embodiment has a thickness of about 100 μm to about 150 μm and comprises four layers.

The first layer oriented to the internal volume 13 of the package 10 is a layer of polyethylene and has a thickness of about 70 μm to about 100 μ ??. The first layer is produced by means of a foaming process by extrusion.

The second layer after the first layer has a thickness of about 18 μm to about 25 μm and comprises polyethylene and ethylene or polyethylene methacrylic acid polymer and ethylene methacrylic acid polymer.

The third layer is made of aluminum and acts as a barrier layer. The aluminum layer has a thickness of approximately 9 μm.

The first, second and third layers are joined together by means of extrusion lamination. Said laminated structure 44 results in sufficient resistance to chemical and mechanical stress.

The fourth layer is made of polyamide with a thickness of approximately 5 μm or polyethylene terephthalate with a thickness of approximately 12 μ? T ?. The fourth layer comprises an impression applied to the surface facing the aluminum layer and is joined to the third layer by means of adhesive lamination.

The laminated structure 44 of the present embodiment does not practically show corrosion and / or migration of particles of the hair coloring component, such as dye pigments, surfactants and aqueous ammonia solution.

The laminate 44 is bent into two opposite longitudinal edges 30, 31 of the package 10 and is sealed on the back side and provides a so-called "fin seal" 34. As the pour spout 14 aligns with the external longitudinal edge 30 of the reservoir 12 , the spout 14 comprises a sealing portion 46 and a flow channel portion 42 as the sealing function on the remaining side 30 is provided by the folded edge of the laminate 44. Said design results in a maximized flow channel 42. in relation to a given peak diameter.

The hair dye packages 10 shown in Figures 2 to 4 comprise a reseal element 48, respectively, to close, again, the dispensing end 16 of the pour spout 14 when the release tab 18 has been removed. it can be closed, again, by bending and adjusting the spout peak 14 on the external surface of the reservoir 12 by means of the reseal element 48. When the hair dye container 10 is closed, again, the internal flow channel 42 of the peak In this way, the spill is prevented coloring component for the hair.

The reseal element 48 shown in Figure 2 is a pressure seal and seal 50, while the reseal element 48 shown in Figure 3 is a plastic flange 52 and the reseal element 48 shown in Figure 4 is a Hook and loop ribbon closure 54.

In accordance with Figure 2, the plastic flange 52 is attached to the outer surface of the spout peak 14 and extends downwardly and along a specific distance on the external surface of the reservoir 12. When the release tab 18 is removed and must again, the container 10 is closed, the pouring spout 14 can be folded along the fold line and oriented towards the reservoir 12. The tension or stiffness of the plastic flange 52 keeps the pouring spout 14 in the folded position.

The hook and loop band closure 54 (cp Figure 3) and the pressure seal and seal 50 (cp Figure 4) consists of two elements 56, 58, mainly, of a male element 56 and a female 58, in where one of the elements 56, 58 joins the outer surface of the pouring spout 14 and the other joins the outer surface of the reservoir 12, respectively. To close, again, the container 10, the pouring spout 14 is folded along the bending line and secured to the reservoir 12. The male and female elements 56, 58 engage and maintain the pouring spout 14 in the bent position.

Figure 5 shows a hair dye package 10 comprising a flow restrictor 60 on the inner perimeter 62 of the spout peak 14. The flow restrictor 60 is provided in case the hair coloring component stored in the reservoir 12 have low viscosity, such as liquid hair dye components. By means of the flow restrictor 60, the width of the internal flow channel 42 is reduced, thereby preventing spillage during the opening action as well as a limited flow regime of the hair coloring component when dispensed. The flow restrictor 60 is in the form of two protrusions 64 projecting into the spout peak 14 in a stepped manner.

Comparative experiments A package of hair dye according to Figure 3 and hair dye packages according to Figures 2 and 4 are compared in relation to their handling properties.

The evaluation of the handling properties (preferences) was carried out by 19 panelists according to the following criteria: resealing capacity, fold simplicity of the pouring spout, coupling performance of the pouring spout to a bottleneck and performance of discharge of the coloring component for the hair.

In relation to the criterion stated above, 15 of 19 panelists preferred the hair dye package according to Figure 3. The test results clearly showed that the hair dye package according to Figure 3 provided a coupling performance of the pouring spout to the bottle due to improved stiffness of the pouring spout, improved yield of discharge of the hair coloring component as well as improved bending and resealing performance as compared to hair dye packaging in accordance with Figure 2 and 4 The dimensions and values described in the present description should not be understood as strictly limited to the exact numerical values mentioned. Instead, unless otherwise specified, each of these dimensions will refer to both the aforementioned value and an interval functionally equivalent that comprises that value. For example, a dimension described as "40 mm" refers to "approximately 40 mm".

List of reference signs: 10 packaging of hair dye 12 reservoir 13 internal volume 14 peak spout 16 end dispenser 18 tongue detached 20 upper side of the reservoir 22 peak width 24 reservoir width 26 grip area 28 predefined detachment line 30 external longitudinal edge 32 other external longitudinal edge 34 closing with fins 36 notch to open by tear 38 reservoir height 40 height of the spout 42 flow channel 44 laminate 46 sealing portion of the peak 48 element of resealing 50 pressure seal and seal 52 plastic flange 54 hook and loop tape closure 56 male element 58 female element 60 flow limiter 62 internal perimeter of the spout 64 protuberances

Claims

1 . A package of hair colorant (10) in the form of a flexible sachet having a laminated structure (44) for storing a hair coloring component; The package includes: a reservoir (12) with an internal volume (13) for storing the coloring component for the hair, a spout (14) that is in continuous communication with the internal volume (13) and has a dispensing end (16) for dispensing the hair coloring component, the pouring spout (14) is formed, integrally, with the reservoir (12) and projects from an upper side (20) of the reservoir (12) and has an elongated shape with a width (22) smaller than the width (24) of the reservoir (12), and a removable removable tongue (18) at the dispensing end (16) for sealing the package (10) before the package (10) has been opened, characterized in that the spout (14) comprises at least one reseal element (48) to close, again, the dispensing end (16) when the release tab (18) is removed, the reseal element (48) has a greater stiffness than the rigidity of the laminated structure.

2. A package of hair dye (10) according to claim 1, further characterized in that the reseal element (48) is a metal strip, plastic strip, band, adhesive clamp, plastic flange (52), connecting tab non-permanent rigid adhesive and / or an additional rigid layer joined to or inserted into the laminated structure.

3. A package of hair dye (10) according to any of the preceding claims, further characterized in that the hair coloring component is a hair dye component, a developer component or a direct dye.

4. A package of hair dye (10) according to any of the preceding claims, further characterized in that the detachable tongue (18) is formed, integrally, with the spout (14).

5. A package of hair dye (10) according to any of the preceding claims, further characterized in that the hair dye package (10) comprises a predefined detachment line (28) between the release tab (18) and the dispensing end (16) of the spout (14) along which the release tab (18) is released when the container (10) is opened.

6. A package of hair dye (10) according to any of the preceding claims, further characterized in that the pouring spout (14) comprises a grip area (26) extending along the width (22) of the shape elongated and adapts with its dimensions to the fingers of a user to hold the pouring spout (14) with the fingers when removing the detachable tongue (18), in this way, the opposite walls of the pouring spout (14) are pressed together and prevention against spillage is provided.

7. A package of hair dye (10) according to any of the preceding claims, further characterized in that the pouring spout (14) comprises on its internal perimeter (62) at least one flow restrictor (60) to restrict the flow of the hair. hair coloring component when dispensed.

8. A package of hair colorant (10) in accordance with the claim 7, further characterized in that the at least one flow restrictor (60) is formed as a protrusion (64) projecting into the spout (14).

9. A package of hair colorant (10) according to claim 7 or 8, further characterized in that at least two protuberances (64) are formed in a stepped configuration.

10. A package of hair dye (10) according to any of the preceding claims, further characterized in that the laminated structure (44) of the hair dye container (10) comprises at least three layers, preferably four layers.

11. A package of hair dye (10) according to claim 10, further characterized in that the laminated structure (44) of the hair dye container (10) comprises three layers, wherein the first layer facing the interior of the container (10) comprises acrylic acid polymer of ethylene or polyethylene, or ethylene methacrylic acid polymer or combinations thereof; the second layer after the first layer comprises aluminum; Y the third layer after the second layer and facing the outside of the package (10) comprises polyamide or polyester, preferably polyethylene terephthalate, or combinations thereof.

12. A package of hair dye (10) according to claim 10, further characterized in that the laminated structure (44) of the hair dye container (10) comprises four layers, wherein: the first layer facing the interior of the container (10) comprises polymer of acrylic acid of ethylene or polyethylene, or polymer of methacrylic acid of ethylene or combinations thereof; the second layer after the first layer comprises acrylic acid polymer of ethylene or polyethylene, or ethylene methacrylic acid polymer or combinations thereof; the third layer after the second layer comprises aluminum; Y the fourth layer after the third layer and facing the outside of the package (10) comprises polyamide, polyester, preferably polyethylene terephthalate, or combinations thereof.

13. A packaged hair coloring product comprising a hair dye package (10) according to any of the preceding claims and a hair coloring component stored in the internal volume (13) of the reservoir (12).

14. A kit for providing a ready-to-use hair coloring product, comprising a hair dye package (10) according to any of claims 1 to 12 as a first package containing a hair dye component and a second package, preferably, a bottle or a package of hair dye (10) according to any of claims 1 to 12 containing a developer component.