JP4101817B2 - Product packaging and coating apparatus and method of use thereof - Google Patents

Description

  The present invention relates to packaging and application devices for products, in particular cosmetics or skin care products, and in particular to portable devices for small quantities of products. Specifically, according to the apparatus of the present invention, it is possible to easily perform a sensitivity test on a hair color product recommended prior to application, particularly when oxidative hair coloring or direct hair coloring is involved.

  In the cosmetic or skin care field, it is common practice to package a product for a single use. Such packaging is in fact frequently used for free samples that are intended, for example, to allow product testing by customers. Such packaging can be easily carried in a handbag, thereby avoiding the need to carry around bottles and pots that are cumbersome and difficult to carry all day or weekend.

  For example, sachets already exist that contain liquid or creamy products used as samples. However, such a sachet cannot be easily opened because the product tends to spill out of the sachet when it is torn during opening. Moreover, such packaging requires the use of a finger to apply the product, and such an approach is usually used in places other than the washroom, where such products are applied. This is not always desirable, given that there are often times when one cannot wash hands later.

  There are also sachets containing wipes impregnated with liquid. Such a sachet is easier to use than the above sachets, and is particularly easy to open because the product is held on a wipe. However, here too, the finger touches the product during application.

Patent Document 1 discloses one known single-use packaging and coating apparatus. The device has a container with a foam-like element impregnated with the product to be applied inside, which is closed by a cover piece designed to seal the device. For ease of application, the user holds the device with one hand and uses the other hand to peel off the cover piece. For ease of handling, the cover piece is provided with a grip that projects slightly beyond the edge of the container to which the cover is sealed. Since this grip is generally small, it is difficult to peel off the cover, especially if the hand is not dexterous. Furthermore, the operation required to peel off the cover involves the operation of holding the grip portion and pulling it in the opposite direction of the container. Thus, the user's finger will be very close to the opening defined by the container. Assuming that the foam element is compressed inside the container, the foam element begins to be uncompressed as soon as the opening operation is started. For this reason, the user's finger is likely to come into contact with the foam application surface, so that the foam application surface is soiled and the finger itself is soiled.
US Pat. No. 3,860,348

  There is a need for a simpler and new opening action, especially when the packaging and application device to be opened is very small.

In particular, one object of the present invention is to provide a device that is small and easy to carry.
A further object of the present invention is a device that allows a practical application of the product, which can be easily opened without particularly fouling the user's finger and without fouling the product with the finger even before the first use. Is to provide a device.

  The object of the present invention is a packaging and coating apparatus having a container for forming a recess. In this packaging and coating apparatus, the recess includes a measured amount of product, defines an opening that can communicate with the recess, and the container is integral with the porous application section. Is located at least partially within the recess when the opening is closed by the cover piece, and appears at least partially through the opening when the container is in the open position. Is integral with a support member having a rigidity greater than that of the cover piece and extending at least partially around the opening.

  Thus, the user covers the opening of the container by holding the support member capable of forming the gripping element to which the cover piece is applied with one hand and simply pulling the container away from the support member with the other hand. Can be separated from the piece, thereby opening the device. The user does not need to grip the cover piece directly to expose the opening of the container. Furthermore, the user's hand is always some distance away from the applicator, and both hands move away from each other due to the separation operation of the container and the cover piece, which is undesirable between the hand holding the support member and the applicator. Contact is prevented.

  In use, the movements of both hands are distant and neither hand needs to pass near the opening of the container. Separation is accomplished by holding one of the container or support member in a fixed position and rotating the other of the container or support member about an axis that intersects and is preferably parallel to the plane in which the opening is defined. be able to. When communicating rotational movement about an axis defined in the plane of the opening to the container or support member, the opening movement according to the present invention requires both hands to move sufficiently, so Will be located some distance away from the opening, thus minimizing the risk of soiling the applicator.

Therefore, the user can apply the product by holding the container integrated with the application unit without bringing the finger into contact with the application unit and without soiling the finger with the product.
Advantageously, the application part is elastically deformable. For example, since the application part is compressed into the recess by the cover piece, the cover piece is held in contact with the application part when in the closed position.
In the closed position, it is desirable that the application part is compressed in the major axis direction of the container between the bottom of the recess and the cover piece. For example, the length of the application part at the time of non-compression can be made larger than the depth defined from the opening part of the recessed part.

  In one embodiment, the applicator occupies the entire internal volume of the container. In this case, the product is impregnated in the application part. The amount of the product held in the container is preferably not 90% of the total internal volume of the application part, but an amount that saturates the entire application part.

Advantageously, the application part is an open cell foam. As a variant, the application part is made of foam, felt or agglomerated material with a semi-open cell structure. In particular, the application part can be made of one or more materials selected from polyurethane, polyester, polyether, polyvinyl chloride, and ethylene vinyl acetate. For example, the application part can be made of cotton, in which case the cotton is covered with an elastomer that is at least partially perforated to allow the product to pass through. The application part can also be made of a flock material.
The applicator can also have a composite structure, for example a composite structure formed from a collection of foam elements of different types and / or densities. As a variant, the application section can have a variable porous layer in order to control the flow of the product through the application section. Furthermore, as an option, the application part can be made of a hydrophilic or lipophilic material in accordance with the product absorbed by the application part, thereby promoting absorption of the product into the application part. It is also advantageous to include a preservative or bactericidal agent in the application area.

An application part comprises the application surface applicable to the skin surface to which an application part is applied. For example, the application surface can be formed in a dome shape. In one embodiment of the present invention, the surface area of the coated surface is about 7 mm ² .
In particular, it can be welded to the wall of the container, for example, the wall that is recessed from the edge defining the opening. For example, heat welding, ultrasonic welding, or high frequency welding is possible.

  As another example, the application part may be held in the container by an adhesive or a fusion of materials. As a variant, it is also possible to compress the application part radially in the container, which compression contributes to holding the application part in the container.

The cover piece desirably closes the opening so as not to leak. The cover piece can be bonded to the container at high or normal temperature or welded. Therefore, the opening of the device by stripping is irreversible, i.e. it cannot be restored. This provides, for example, a device intended for single use. Advantageously, the weld or bond line defined between the cover piece and the container is annular and continuous.
Advantageously, the cover piece consists of a barrier material that is resistant to the external environment in order to prevent contamination of the product and / or the application part held in the recess at the sealing position. For example, the cover piece may be a thermoplastic material selected from polyethylene, polypropylene, polyethylene terephthalate, and polyvinyl chloride, or a metal material selected from aluminum, aluminum alloys, and brass, or a composite of metal and plastic, or It has one or more layers of at least one or more materials, such as paper.

The support member is attached to the cover piece. For example, the cover piece is welded or heat-sealed to the support member, and is irreversibly integrated with the support member. Since the support member has rigidity, the container can be maintained in a predetermined position by grasping the support member with one hand. When the user moves the container with respect to the support member with the other hand, the contact between the cover piece and the container is broken. At that time, even if the contact with the container is cut off, the cover piece remains integral with the support member.
The support member is cut, for example by a die cutter, or molded from a thermoplastic polymer such as polypropylene, polyethylene, polyamide, or polystyrene. The support member preferably has a flat structure with a thickness of about 1 mm to 10 mm.

Preferably, the support member has a window portion, and the container can be attached to the support member through the window portion so that the opening of the container is closed by the cover piece. In this way, the support member and the container can be held on the same side of the cover piece. The cover piece is coated on one side with a varnish layer. The varnish layer locally cooperates with the support member and one side of the container that defines the container opening, thereby facilitating thermal welding or heat sealing to the cover piece. This varnish layer melts at the surface when heated at the point of contact with the support member and the container. After cooling, a weld is finally formed.
For example, the window portion forms an inner periphery corresponding to the outer periphery of the container at the height of the opening. Preferably, the size of the window portion of the support member is larger than the outer periphery of the container so as not to adhere to the window portion when the container is removed from the cover piece.

As a modification, the inner periphery of the window portion can be made to fit on the outer periphery as necessary in order to reinforce the holding state of the container with respect to the cover piece. For example, when the container is vertically attached to the cover piece, the support member assists in maintaining the vertical posture of the container because the thickness of the support member and its window portion are in an interference fit state.
The window and the outer periphery of the container adjacent to the opening have, for example, a circular cross section.

The container can have an elastically deformable wall. The container is selected from a metal material, in particular aluminum, a composite of metal and plastic, and / or in particular polyethylene, polypropylene, polyethylene terephthalate, polyvinyl chloride, polyacrylate or polyamide, stamped, thermoformed or thin-walled It is possible to produce from a thermoplastic material obtained by injection molding. The container can also be made of glass, in which case the walls are rigid. The wall of the container can be transparent.
The inner wall of the container at least partially defines a recess, and the container has retaining means on the inner wall that can cooperate with the outer periphery of the applicator. These holding means are, for example, spikes or hooks that can be mechanically engaged with the application part by penetrating the application part to an arbitrary depth.

  For example, the amount of product is 0.5 ml to 20 ml, desirably less than 1 ml. The product can comprise at least one component of a formulation intended for coloring keratinous fibers, in particular hair. A particular object of the present invention is to provide a hair coloring system that allows patch testing of coloring products in a simple and economical manner prior to product use. Since coloring products are generally strong in dyeing power, the device of the present invention can prevent stains that cannot be easily removed from the finger when performing a patch test.

  The term “hair coloring agent” is a direct dye, or a dye precursor, such as an oxidizing group or binder, which is soluble in a hair dye medium formed by water or a mixture of water and at least one organic solvent. Means a dye or dye precursor capable of being

  As a variant, the product may be a composition for treating local skin infections such as acne or cold sores. As a further variant, the product may be a cosmetic product in the form of a liquid, gel, cream, powder or perfume.

  Preferably, when the product is impregnated in the application part and the application part is brought into contact with the treatment surface, the product passes through the application part by at least capillary action, and the product moves to the application surface.

  Another subject of the invention is a product packaging and applicator kit comprising a plurality of devices according to the invention. For example, these devices are connected to each other in pairs at least by one or more severable portions defined at least at the height of the support member. According to such an embodiment, it is possible to provide a coating device that can separate products for a plurality of uses into one package and can be separated so that the products for a desired number of uses can be carried. Further, for example, the support member may be a single element, and a plurality of containers sealed by a single cover piece integral with the support member may be held. In this case, the container is welded to the cover piece through the plurality of windows of the support member.

  Another subject of the invention is the use of the device according to the invention. In this method of use, in order to remove the cover piece from the opening, the container is rotated with respect to the support member, particularly about an axis parallel to the support member. Then, after the separation between the container and the cover piece is performed, the application surface of the application part protruding beyond the opening of the container can be applied to the treatment surface when the application part is released from compression. become. As the applicator stretches, the remaining product in the closed volume is pumped by the applicator and all the product is impregnated in the applicator so that the product is less likely to flow out of the device. The product is pumped by mechanical means and / or capillary action, for example staying in the pores of the application part.

In general, in order to release the product impregnated in the application part in contact with the treated surface, the application part is lightly pressed against this surface.
The device according to the invention is intended for single use and is preferably discarded after application to the treated surface.

  In order to manufacture such a device according to the invention, the application part is mounted in the recess, the product is filled in the recess using a syringe, the opening of the recess is positioned at the top, and the product is placed in the recess by gravity. To stay on. Then, the opening part of a recessed part is sealed with a cover piece.

  A better understanding of the present invention can be obtained by reading the description below and referring to the accompanying drawings. The following description and the accompanying drawings are merely for the purpose of understanding and are not intended to limit the invention in any way.

  FIG. 1 shows a state in which a device 1 according to the invention is held between a user's hands M1 and M2. The device 1 has a container 2. The bottom 3 of the container 2 is located away from the opening 4 (not shown in FIG. 1), and the first hand M1 is placed near the bottom 3 or at the position of the side wall 5 defining the container 2. Yes. The side wall 5 stands upright with respect to the bottom 3 so as to define a recess 6 inside the container 2.

  1 to 4, the container 2 according to this embodiment has a substantially cylindrical shape having a long axis X. In this case, the side wall 5 is parallel to the major axis X, and the bottom 3 and the opening 4 are defined substantially perpendicular to the major axis X.

  In the closed position, the opening 4 is sealed by a cover piece 7 before first use. The periphery of the opening 4 is defined by an edge 8 defined in approximately one plane, in this example in a plane perpendicular to the axis X. A cover piece 7 is attached to the edge 8 so as to close the opening 4. As a variant, the cover piece 7 is preferably made of a flexible material, the edge 8 being defined by a non-planar surface.

  The cover piece 7 is attached to a support member 9 that forms a gripping element for the cover piece 7. This gripping element can in this case be held by the hand M2. Specifically, at least one of the faces 10 of the support member 9 extends in a plane in which the opening 4 is defined. Since the cover piece 7 is attached to this surface of the support member 9, the cover piece 7 can be attached to all of the edges 8, so that the opening 4 can be closed in a sealing manner.

  The support member 9 extends beyond the outer periphery defined by the container 2. The support member 9 extends laterally beyond the outer periphery defined around the opening 4. As a modification, the direction of the support member 9 with respect to the container 2 is an arbitrary direction as long as the operation of grasping the container 2 with the first hand M1 does not prevent the operation of grasping the support member 9 with the second hand M2. Can do.

  The support member 9 has rigidity, which is larger than the rigidity of the cover piece 7 in any case. The cover piece 7 is attached to the support member 9 and they are parallel to each other. The rigidity of the support member 9 is such that when the user holds one of the edges of the support member 9 with one hand M2 and holds the support member 9, the container 2 is integral with the cover piece 7, and therefore Even in the case of being integrated, the support member 9 maintains the flatness and does not deform due to the influence of gravity. Therefore, when the support member 9 is held parallel to the ground, the container 2 is substantially perpendicular to the ground.

  In the embodiment shown, the support member 9 and the cover piece 7 define the same contour. In one variant, the outer shape of the cover piece 7 can be made smaller than the outer shape of the support member 9, so that the outer shape of the cover piece 7 has a dimension corresponding to the outer shape defined by the edge 8 as a minimum value. The support member 9 and the cover piece 7 in this case have a rectangular cross section, and the edge 8 defined in this embodiment has a circular cross section. In addition, the circular cross-sectional area occupied by the edge 8 is in this case larger than the cross-sectional area at the position of the side wall 5 of the container 2.

The thickness of the cover piece 7 is, for example, 0.1 mm to 0.5 mm. The cover piece 7 is, for example, aluminum, a composite material of aluminum and polyolefin, or a composite material of aluminum and varnish, or polyethylene terephthalate in combination with varnish or polyolefin, or polyethylene terephthalate alone, or polyolefin in combination with varnish or another type of polyolefin. Or made from polyolefins only. The thickness of the support member 9 is, for example, 0.8 mm to 5 mm. The support member 9 is made of, for example, a polyolefin, a moldable or severable plastic, or a metal. The surface area of the support member 9 is, for example, about 200 mm ² , and the cross-sectional area of the container 2 varies from 10 mm ² at the bottom 3 to 60 mm ² at the height of the opening 4. Preferably, the container 2 is arranged with respect to the support member 9 so that a part of the support member 9 has an area sufficient to be held between at least two fingers of one hand. As a modification, when the size of the support member 9 is small, the user can hold the support member 9 by holding both sides with two fingers.

  The cover piece 7 is heat-sealed on one surface of the support member 9 by, for example, an irreversible method. Heat sealing or heat welding can be performed by using, for example, a varnish integrated with an aluminum film, and a cover piece is formed by this combination, and the cover piece is bonded to the material of the support member. The varnish is made of a material that does not require an additional binder in the dissolved state to adhere to the support member. As a variant, the cover piece can be thermally bonded to the support member, for example by providing a layer of hot melt adhesive between the two materials forming the cover piece and the support member, respectively.

  In one embodiment (not shown), the support member 9 is attached to the surface of the cover piece opposite to the surface to which the container 2 is attached.

  In the illustrated embodiment, the support member 9 and the container 2 are held on the same surface of the cover piece 7. It is desirable to apply a heat seal resin to this surface of the cover piece 7 so that adhesion between the support member 9 and the container 2 can be obtained.

  In a preferred method, the support member 9 is provided with a window portion 11, and the container 2 is partially attached through the window portion 11, whereby the cover piece 7 closes the opening portion 4 in a sealing manner. In this way, the support member 9 surrounds the entire circumference of the container 2. Accordingly, the user can select a region to be grasped when lifting the support member.

  The window 11 corresponds to the cross-sectional area of the container at the height of the side wall 5 adjacent to the opening 4 or has a cross-sectional area slightly larger than this cross-sectional area. In this case, the window portion 11 has a circular cross section. For example, the diameter difference between the cross section of the window portion 11 and the cross section of the outer periphery of the container at the opening portion 4 is about several tenths of mm, and the risk of the container sticking to the window portion 11 when the container moves from the closed position to the open position. Without enough play to remove the container from the cover piece 7.

  In use, the opening 4 is opened at the opening position. The recess 6 formed by the container 2 holds a measured amount of product applied by the application unit 12. For this purpose, the application part 12 is integral with the container 2 and closes the passage defined in the opening 4. Thereby, the product is distributed only through the application unit 12. In a variant, the application part 12 does not completely block the passage defined in the opening 4. However, in this case, it is desirable that the product be held in the pores of the application part, so that even if the container is removed from the cover piece with the opening 4 facing downward, before the product is applied, It does not flow out of the container due to gravity.

  For example, the applicator is made of a porous material such as an open cell polyethylene foam.

  The application part is thermally welded to the inner wall 13 of the container 2, for example. For example, the applicator is welded onto a portion 15 of this inner wall that is recessed from the edge 8. The application unit 12 is desirably configured to pass through the opening 4 at the opening position. In this way, when the user holds the container 2 in his hand, the treatment surface can be brought into contact with the application portion without bringing the edge 8 into contact with the treatment surface.

  Preferably, the application part 12 is elastically deformable, whereby the application part 12 is compressed into the recess 6 by the cover piece in the closed position. For example, as shown in FIGS. 2 to 4, the opening 4 is defined in a plane, and the application portion constitutes a dome-shaped application surface 14 extending through the opening 4. However, when the cover piece 7 covers the opening 4, the application surface 14 is pressed against the cover piece, and the application part is in a fixed position on the shaft attached to the part 15 of the inner wall by welding, It is compressed by the cover piece 7.

  Therefore, when the user removes the container 2 from the cover piece 7 while holding the support member 9 in the fixed position with the hand M2, the user moves the support member 9 relative to the support member 9 with the hand M1. This rotational movement is, for example, a rotation of at least 30 degrees about an axis Z perpendicular to the long axis X. This rotational movement is obtained by turning the container with respect to the support member 9, and the center is located near the joint between the cover piece 7 and the container 2. Axis Z touches the outer periphery of the container defined near this junction. As shown in FIG. 3, the application part 12 is extended | stretched gradually as it leaves | separates from a cover piece.

  As a modification, when the cover piece is not held in contact with the edge 8, the application part 12 can occupy only a part of the recess 6. As a further variant, the application part 12 is mounted on a resiliently deformable means, for example on a spring, so that it is at least partly pushed into the recess 6 in the closed position and at least partly open in the open position. You may make it protrude from 4. FIG. In the latter case, the spring can be integrally attached to the bottom 3 so that the application part 12 held on the spring cannot be deformed.

  The container 2 holds a certain amount of product P, and if the application part is elastically deformed in the closed position, this amount of product P will not enter the pores of the application part and will remain on the surface of the application part. is there. However, when the application part is gradually removed from the cover piece 7, the pores recover their shape due to elasticity and gradually pump the product through the pore structure. Then, the product is filled in the coating unit 12, and the product can be distributed by applying the coating unit 12 to the processing surface.

  The application part is integrated with the container 2 so that it is easy to handle and the user preferably places the finger in a position some distance away from the bottom 3 and thus the opening 4 so that the finger can be applied without touching the application part. The operation of the part is possible.

  FIG. 5 shows a packaging kit 16 having five devices 1a to 1e in the case of this embodiment. Each of the five devices is similar to device 1 and has a container such as 2 sealed by a cover piece such as 7, each cover piece being integral with a support member such as 9. . The kit according to the present invention has at least two devices such as 1.

  In the illustrated embodiment, the devices 1a to 1e are connected to each other such that the support member has a strip-like configuration. These devices are connected at least in pairs. With a pair of devices, the device is located at each end of the strip. The support members define severable portions, such as 50, which can be separated from each other by a pre-formed detachment line. The corresponding cover pieces also preferably form a continuous sheet that includes a cut-off area that coincides with the cut-off line 50, so that when one of the devices is removed from the strip containing the other device, these covers are covered. The pieces can also be separated.

  6 and 7 show another kit 17 having the device of the present invention. In this embodiment, the container 2 is conical and the internal recess 6 is also conical. For example, the internal cross section of the recess 6 is minimal at the bottom 3.

  For example, the application unit 12 occupies the entire internal volume of the recess 6. In the case where the application part 12 is cylindrical, in the embodiment in which the recess 6 is conical, the diameter is preferably selected so that the application part is held, for example, at the position of the bottom 3 in the recess 6 by compression. In a variant, the inner circumference 13 of the recess 6 has grooves 18, for example radial grooves in the illustrated embodiment, which cooperate with the application part and at least each of these grooves. It is possible to hold the application part in the recess by radial compression at the contact point. In a variant, these grooves may be longitudinal grooves.

  According to FIG.6 and FIG.7, the application part 12 is elastically compressible. The application part 12 is compressed in the radial direction at least at the position of the bottom part 3, occupies the entire internal volume of the recess 6, and is compressed in the axial direction along the major axis X of the container 2 in the closed position. In this embodiment, the length of the application portion when not compressed is larger than the depth of the recess 6 defined from the opening 4 to the bottom 3. These dimensions are dimensions along the long axis X. Actually, as shown in FIG. 7, when the container 2 is separated from the cover piece 7, the application part 12 is released in the axial direction and emerges from the opening, whereby the application surface 14 protrudes to the outside. .

  By such decompression, the product is pumped to the application surface 14 through the pores of the application part. Furthermore, if the application part is radially compressed at the bottom 3 level, the product cannot be stored at this level.

  The side wall 5 of the container 2 is preferably elastically deformable. Thereby, the user can apply pressure to these side walls 5, so that the application part 12 can be compressed in the radial direction and the product can be forcibly moved to the application surface 14.

  Throughout this specification, the expression “including (including) one” is synonymous with “including (including) at least one” unless otherwise specified.

Fig. 2 is a schematic diagram showing the use of the device according to the invention. 1 is a longitudinal sectional view of a device according to the invention in a closed position. 1 shows a longitudinal section through a device according to the invention in the opening stage. 1 is a longitudinal sectional view of a device according to the invention in a state separated from a cover piece. 1 is a schematic perspective view of a kit according to the present invention. FIG. 3 is a partial longitudinal sectional view of a kit according to the present invention. FIG. 4 is a partial longitudinal sectional view of a kit according to the present invention, showing the positional relationship of the device with respect to each cover piece in different opening stages.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus 2 Container 3 Bottom part 4 Opening part 5 Side wall 6 Recessed part 7 Cover piece 8 Edge part 9 Supporting member 10 One surface of a supporting member 11 Window part 12 Application | coating part 13 Inner wall 14 Application | coating surface 15 Part of inner wall 16, 17 Kit 18 Groove 50 Cut line

Claims (22)

A packaging and coating device (1, 1a, 1b, 1c, 1d, 1e) having a container (2) forming a recess (6),
Said recess defines an opening (4) containing a measured amount of product (P) and communicating with said recess;
The container is integral with the porous applicator (12);
The application part is located at least partially within the recess when the opening is closed by a cover piece (7), and at least partially outside the opening when the opening is open. It appeared in,
The cover piece is integral with the support member (9);
The support member has a window portion (11) having a rigidity larger than that of the cover piece and having a cross-sectional area larger than the cross-sectional area of the opening,
The packaging and coating apparatus , wherein the container is attached to the support member through the window .   The apparatus according to claim 1, wherein the application part is elastically deformable.   Device according to claim 1 or 2, characterized in that the application part is compressed into the recess by the cover piece so that the cover piece is held in contact with the application part in the closed position.   The apparatus according to any one of claims 1 to 3, wherein the length of the application part when not compressed is larger than the depth of the recess defined from the opening of the recess.   The apparatus according to claim 1, wherein the application part occupies the entire internal volume of the container.   The apparatus according to claim 1, wherein the application part is an open cell foam.   7. A device according to any one of the preceding claims, characterized in that the application part has a dome-shaped application surface (14) adapted to the skin surface to which the application part is to be applied.   8. Application according to claim 1, characterized in that the application part is welded to the container wall (13, 15) at a position retracted from the edge (8) defining the opening. The device described in 1.   9. A device according to claim 1, wherein the application part is held in the recess by radial compression.   10. A device according to any one of the preceding claims, characterized in that the opening is closed so that no leakage occurs due to the cover piece.   11. The cover piece according to claim 1, wherein the cover piece is manufactured from a barrier material that is resistant to the external environment in order to prevent contamination of the product and / or the application part in the closed position. The device according to item.   12. A device according to any one of the preceding claims, characterized in that the cover piece is heat welded or heat sealed to the support member. The device according to any one of claims 1 to 12, wherein the support member is attached to the support member through a window so that the container is closed by the cover piece .   14. A device according to any one of the preceding claims, characterized in that the window of the support member constitutes a generally circular inner circumference corresponding to the outer circumference of the position of the opening of the container.   15. A device according to any one of the preceding claims, characterized in that the container has an elastically deformable wall.   The device according to any one of claims 1 to 15, characterized in that the container has holding means capable of cooperating with the outer periphery of the application part.   17. A device according to any one of the preceding claims, characterized in that the measured quantity of product is between 0.5 ml and 20 ml.   The apparatus according to claim 1, wherein the product is impregnated in the application part.   Device according to any one of the preceding claims, characterized in that the product comprises at least one component of a combination of components of a formulation intended to dye keratinous fibers, in particular hair.   A product packaging and applicator kit (16, 17) comprising a plurality of devices according to any one of the preceding claims. 20. The device according to any one of claims 1 to 19 , characterized in that it is connected to each other at least in pairs by at least one or more severable parts (50) defined in the support member. The kit according to claim 20. 20. The method of using the apparatus according to claim 1, wherein the cover piece is removed from the opening by performing a movement of rotating the container with respect to the support member, and then the coating projecting beyond the opening. A method of use, wherein the coated surface of the part is applied to the treated surface.

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