JP2004196425A - Packaging device for treatment substance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To heat a substance such as a private hygienic substance or the like to a temperature suitable for application. <P>SOLUTION: A packaging device for a treatment substance has a vessel housing the treatment substance for one batch and an indicator changing its state as a function of a temperature. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention provides a packaging device for a treatment substance.

  In many cases, bathrooms are warmed intensively and shortly before use, so personal hygiene substances such as shampoos and shower gels can reach temperatures much lower than the ambient temperature, And the temperature is much lower than that of the shower water, and when it is applied to the human body, there is a possibility of feeling cold discomfort.

  This discomfort may, for example, cause young children to hate shampoo or make shampoo difficult.

  Therefore, it is necessary to devise a method in which children do not dislike personal hygiene substances such as shampoo or shower gel.

  More generally, there is a need to be able to more comfortably use cosmetics, in particular substances intended for use during bathing or showering.

  Furthermore, especially in the case of artificial tanning substances, it is necessary to be able to rapidly promote the action of the substance, for example by increasing the penetration of chemicals or by promoting its effect.

  French patent specification FR 2 376 401 discloses an appliance with a heater resistor capable of heating the shampoo to a temperature slightly higher than the human body temperature and increasing the efficiency of the shampoo. I have. This specification presents a relatively complex structure and is further designed for use in a beauty salon.

  The present invention achieves all or some of the security identified above.

The present invention, particularly in the first form,
A container for containing the treatment substance;
An indicator capable of changing state as a function of temperature.

  When the state of the indicator changes, the user can know that the substance in the container is at a temperature suitable for application.

  The indicator is provided so as to change state when the temperature reaches the first value the first time, and when the temperature reaches the second value higher than the first value, for example, the second time. . Thus, the second value is related to the maximum temperature for applying the substance in a comfortable or safe state, and the user can know that the substance is too hot to apply.

  In addition, the indicator can be provided to change state only when the temperature of the substance exceeds a predefined value, above which there is a risk of burns.

  In certain exemplary embodiments of the invention, the indicator changes appearance, eg, color, with temperature. The indicator can change state when the temperature reaches a value, for example, in the range of 30C to 40C.

  For an adult, for example, a change in color can indicate that the substance is at an appropriate temperature.

  For a child, seeing the change in the color of the indicator is like a kind of game, so if the child wants to continue playing after soaking in the bathtub, for example, the time for shampooing, which is generally done after soaking in the bathtub, You will be able to easily understand that you have come.

  The container is provided with a safety member to prevent release of the substance if overheated. Such a safety member can change shape with temperature, for example, an expanding shutter, or can change shape to prevent passage of a substance above a certain temperature, thereby preventing actuation of the dispenser member. Equipped with bolts. By way of example, the safety element is designed to prevent the operation of the pump with the container if the temperature is too high. If the container is equipped with a dispenser head that can be moved from the closed state to the open state by rotating the element, the safety member is prevented from rotating when the element rises to a temperature that is too high. Can be designed.

  The indicator may include a plurality of ranges in which the color can be changed according to the temperature. In this case, the threshold value of the color change is different depending on the range. By way of example, the user can thereby know the approximate temperature of the container being heated or be alerted that the substance is too hot or too cold to apply.

  The indicator can have an appearance that varies with temperature, that is, the indicator can return to its initial appearance when the device returns to ambient temperature.

  Indicators can be placed on the device in various ways.

  By way of example, the indicator may comprise at least one flexible medium secured to the container, for example, with an adhesive. By way of illustration, the indicator may be presented in the form of an adhesive patch or label applied to the container.

  Furthermore, the indicator can be printed on the container, for example, using an ink containing a thermochromic dye.

  The indicator can also be formed by mixing a thermochromic dye with the material of at least a portion of the container.

  The indicator can include any material that changes appearance with temperature, for example, cholesteric liquid crystals, optionally encapsulated. Examples of indicators that change color according to temperature are described in EP 1 191 317, US Pat. No. 5,789,578, the disclosure of which is incorporated herein by reference.

  A change in the state of the indicator can be detected other than visually.

  By way of example, the indicator may emit volatile and fragrant materials when the temperature exceeds a certain threshold. For example, the fragrance may be a perfume.

  In certain exemplary embodiments of the invention, the container is designed to hold a dose of substance. This can prevent the user from applying a large amount of the substance more than once, and when the substance is a shampoo, prevent the substance from coming into contact with the eyes and remove the hot water required for rinsing. Decrease the amount of

  Furthermore, it is possible to make the container more compact so that the child can easily hold it.

  The time required for heating and cooling a single batch of material can be shorter.

  The serving material may be a substantially complete, one-time use or a relatively short-time use of the material.

  If the treatment substance is a shampoo, the serving dose can usually be the amount of shampoo applied to the hair during shampooing.

  If the treatment substance is a shower gel, the dose can be the amount of the shower gel that is completely used during the shower, and this amount can be released in several portions during a single shower .

  If the treatment substance is an artificial tanning substance or a massage oil, it may be an amount of the substance that can be completely used in one tanning or massage procedure.

  The dose of film-forming or mask-forming composition may be that amount of material that can be completely consumed in a single procedure to treat a body part such as the face.

  In an exemplary embodiment, the container contains an amount of the substance that can be dispensed multiple times.

  The container may include a liquid storage space and a dispenser member suitable for communication with the liquid storage space and suitable for receiving a certain amount of substance.

  The dispenser member can be optionally connected to the rest of the container in a removable manner.

  By way of example, the dispenser member can be connected to the rest of the container in a flexible tube manner.

  An indicator that can change state according to temperature can be fixed to the dispenser member.

  The dispenser member can optionally be designed so that the reservoir space can be closed in a sealed manner.

  It is possible to design the whole container or only the dispenser member, especially by heat conduction, so that heat can be exchanged with the outside relatively quickly, for example by using a material with good thermal conductivity. Or by providing at least one wall of the container or dispenser member relatively thin.

  By way of illustration, the container can be equipped with a sachet comprising two sheets assembled together. By way of example, these sheets may be of a multi-layer construction in which at least one layer is a metal layer, especially of aluminum.

  Prior to use, the material can be heated in various ways.

According to the illustrated method, the container may be provided with a fixing member that allows fixing to the radiator.
Further, the container can be designed to be immersed and heated in hot water or a hot pot in a bathtub.

  Therefore, the container can be advantageously equipped with a ballast that gives substantially zero or negative buoyancy in water. Therefore, during immersion in water, heat exchange is promoted because the entire surface of the container is in contact with water.

  At least one measure to prevent excessive pressure build-up in the container as a result of the contained material or air expanding if the container is inadvertently heated at a temperature greater than 45 ° C. for an extended period of time. Two safety valves are provided on the container.

  It is possible to only partially fill the container, so that any expansion of the substance does not cause the container to burst.

  In some variations, at least a portion of the container is made of an elastic material, or is made of a porous material that allows only air to pass through the material, or micropores that allow only air to pass but no material. Can be provided on the container.

  Optionally, the container can be provided with a black wall to enhance infrared absorption.

  In the case of personal hygiene materials, heating the material can make cleaning more efficient and use less.

  The container according to the invention, which allows the substance to be quickly heated to a given temperature, makes it possible to adapt the formulation of the substance to a predefined use temperature, for example for optimal flow, efficiency, comfort Property is obtained.

  Heating the substance, especially in the case of care substances, and especially in the case of creams, enhances the penetration of the active agent into the skin or scalp, e.g. the thermal effect and blood vessels to obtain better color development It can exert a related effect and / or promote the breakdown of sebum or the emission of odors.

  Heating the substance can further promote the effect of the substance, such as an artificial tanning substance.

  The substance may be a liquid at the same temperature as the ambient temperature or, as a variant, a substance that is solid at ambient temperature and liquifies when heated.

  Instead of heating the substance, it can be cooled in cold water or especially in a refrigerator, for example for summer exhilaration. In this case, the temperature indicator can be designed to inform the user of the temperature of the substance, so that the user can use a substance that is not too cold, for example, but is sufficiently cold. By way of example, the temperature indicator may change its appearance, for example, to inform the user that the substance is cold enough and / or solidify at a lower temperature than the given temperature. can do. Further, the indicator may change state, for example, appearance twice, to inform the user that the substance is too cold for comfortable use. By way of illustration, the temperature indicator may provide, in a manner similar to that described above, a first color range to indicate that the material is too cold, a second color range to indicate that the material is too hot, and possibly A third color gamut may be provided to indicate that the temperature is related to a desired use temperature.

The invention further provides, in another aspect, a method of applying a treatment substance, wherein the substance is contained in a packing device as defined above, comprising:
Exposing the packaging device to a heat source to raise the temperature of the substance at least until the state of the indicator changes, or exposing the packaging device to a cold source to lower the temperature of the substance at least until the state of the indicator changes;
Applying a substance.

  The heat source can be constituted by hot water, in particular hot water in a bathtub or a hot pot, a heating device such as a radiator, or solar power radiation. In addition, the heat source can be derived from the exothermic reaction resulting from the mixing of the reagents, in a manner similar to certain food packaging. The cold source can be constituted by cold water or a refrigerator, freezer, or by the result of an endothermic reaction or gas expansion.

In another aspect, the present invention provides a method of applying a treatment substance, wherein the substance is contained in an apparatus comprising a container with a dispenser member as defined above, the method comprising:
Refilling the dispenser member with an amount of substance;
A heat source that enables at least the dispenser member to raise the temperature of the substance contained within the dispenser member at least until the indicator changes state; and at least the indicator provides a temperature of the substance contained within the dispenser member. Exposing it to a cold source that allows it to decrease until it changes state;
Applying the substance contained within a dispenser member.

  The present invention will be better understood from reading the detailed description of the non-limiting embodiments set forth below and from reviewing the accompanying drawings.

  The term "treatment substance" is generally used to indicate any substance used to affect one or more extra bodily conditions, such as the condition of the skin, hair, nails. Such substances include, for example, cosmetic or care substances, such as sunscreens, humectants, and / or medicaments, and cleansing substances and cosmetics, such as makeup substances, or those that can be applied to the body. Includes all other conventional and recently developed materials.

  FIG. 1 shows a packaging apparatus 1 including a small bag formed by combining two flexible sheets 2 and 3 in this embodiment. As shown in FIG. 2, each of the sheets is constituted by a laminate, and the laminate includes a layer 4 made of a metal such as aluminum, and covers the inside of the layer 4 and heats two sheets 2 and 3. It comprises a layer 5 of a thermoplastic material to be fused and a film 6 of a thermoplastic material which covers the outside of the layer 4 and which can be used for decorative printing.

  In one variant, the sheets 2, 3 can be made of a plastic material alone, or they can be made of other materials, such as woven or non-woven fabrics.

  As shown in FIG. 1, a notch 8 is provided in the pouch 1 and the presence of the notch 8 allows the user to tear the rim and open the pouch in a conventional manner.

  In a variant not shown, it is possible to provide the pouch 1 with a reusable closure element, by means of which the user can empty the pouch and then take it into account for reuse. It can be refilled and resealed.

  By way of example, two sealing strips, each fixed to each of the two sheets and which can be assembled with matching shapes, can be provided in a closure element as described above.

  In another variant, the pouch 1 is provided with an opening, and the sheets 2, 3 can be wound up, and the opening can be closed by maintaining this winding state.

  In the embodiment under consideration, the sachet 1 contains a certain amount of a cosmetic P, such as a shampoo or shower gel.

This serving may for example relate to a volume in the range from 5 milliliters (ml) to 25 ml.
A temperature indicator is provided on the sheet 2 of the pouch 1, and the temperature indicator is composed of, for example, a patch 10 attached to the sheet 2 on its outer surface, and has a temperature in a range of 30 ° C. to 40 ° C. It contains a thermochromic dye that indicates the change in color when a certain threshold is exceeded.

  In the modification shown in FIG. 6, instead of the patch 10, a strip 11 having a plurality of ranges in which the color changes for each increase threshold is provided in the packaging pouch 1.

  By way of example, the strip 11 can be provided with a blue range 11a, a green range 11b and a red range 11c. At the ambient temperature, only the blue range 11a appears and the other ranges remain black. When the container is heated, the blue color disappears and a green range 11b appears, indicating that the temperature of the contained material is appropriate. If the temperature is too high, a red range 11c appears.

  Therefore, the strip 11 can follow the temperature change when the substance P is heated, and further, the user can know that the substance P is too hot to release in a good state.

  The pouch 1 can be heated by immersing it in hot water placed in a bathtub or a wash basin. Can float in the middle.

  By way of example, the ballast may be formed from a certain amount of water, such as sand, in a depression formed, for example, by folding the sheets 2, 3 or formed between opposing surfaces of the sheets 2, 3. Can also be configured to accommodate high density materials.

  Further, the pouch 1 can be heated by, for example, fixing it to the radiator 30 and bringing it into contact with a high-temperature surface as shown in FIG.

  To this end, and as shown in FIG. 1, it is possible to provide a hook 9 on the pouch 1 and to hang between the bars 31 of the radiator 30.

  Instead of the hook 9, any other suitable fixing member can be used to fix the pouch on or near the surface of the radiator.

  For example, a cord that can hang down from the radiator can be provided in the pouch 1.

  In one variant, a fixing area of the VELCRO® type can be provided in the pouch 1, which fixing area can cooperate with an auxiliary fixing member fixed to the radiator.

  Furthermore, it is also possible to equip the pouch 1 with a magnet and fix the pouch to the radiator.

  A rigid rod is provided along at least one of the edges of the pouch 1 to keep the pouch 1 in a substantially flat shape to keep the thickness of the contained material as thin as possible to prevent the pouch from bending can do. Such a rod is sandwiched between the sheets 2 and 3, for example.

  FIG. 9 shows a packaging device 15 comprising a pot 17 which is closed in a sealing manner by a lid 16 provided on the top, which has a knob portion so that the user can remove the lid during use. Is provided.

  The pot 17 contains, for example, a certain amount of shampoo or shower gel.

  Strip 11 can be fixed to pot 17 to indicate the temperature.

  In the embodiments described above, the packaging device contains a certain amount of substance to be used at one time.

  In one variation, the container is designed to release multiple doses of the substance.

  FIG. 10 shows a packaging device 20 comprising a bottle 25 which can be provided with a deformable wall, which bottle has a neck 26 which is closed by a conventional cap 27 equipped with a swiveling lid. Have.

  Bottle 25 is designed to contain, for example, 50 ml to 500 ml of substance.

  In the vicinity of the bottom of the bottle, a hole 21 communicating with a tube 22 fixed to the bottle 25 is provided, and this tube 22 can function as a material dispensing and dispensing member.

  The tube 22 is provided with a preferred deformation range 23 constituted by a bellows-shaped part, for example, in the vicinity of the hole 21.

  The tube 22 can be maintained on the wall 28 by fastener means fixed to the wall 28, such as a pair of resilient knobs. In one variation, the fastener means includes a three-dimensional undulation, for example, integrally molded with the bottle.

  By way of example, the length of tube 22 is substantially related to the length of bottle 25.

  The tube 22 is closed at its top end by a removable stop 35 and is provided with a temperature indicator 10.

  The tube 22 can be made of a transparent material and can be provided with a scale 39 for measuring the amount of substance contained.

  In using the device 20, the user presses the wall of the bottle 25, if necessary, to fill the tube 22 with the substance.

  Next, the tube 22 is moved from the bottle wall 28 and then immersed in a bath of hot water, as shown for example in FIG. 12, so that the material contained in the tube 22 can be heated. To

  By observing the color of the indicator 10, the user can know whether the substance contained in the tube has been sufficiently heated.

  The user removes the stop 35 and possibly presses the wall of the tube 22 or the wall of the bottle 25 to release the substance.

  A particular advantage of this embodiment shown in FIG. 12 is that it reduces the time required to raise the temperature of the material to the desired temperature.

  If necessary, the apparatus is arranged, for example, with a plurality of tubes side by side. Further, instead of the tube 22, a dispenser having any other shape can be used.

  FIG. 13 shows a packaging device 50 constituting another embodiment of the present invention.

  The device 50 is equipped with, for example, a bottle 51 with a deformable wall.

  The bottle 51 is provided with a neck 52, on which a dispenser member 53 which also functions as a stop in the embodiment under consideration is fixed. The dispenser member 53 has a threaded edge portion 54 so that the dispenser 53 can be secured on the neck of the bottle 51, and the dispenser portion 53 can compress the neck 52 in a sealed manner. It further comprises a sealing lip 57 that can be used.

  The temperature-sensitive indicator 10 is fixed on the dispenser member 53.

  Referring to FIG. 14, the dispenser member 53 includes an interior space 70 that can communicate with the interior of the bottle 51 via an opening 55 that opens into the threaded edge portion 54, and in the embodiment under consideration, The opening 55 is closed by a valve 56 made of an elastomer when not in use.

  In the described embodiment, the dispenser member 53 is substantially spherical and is equipped at the top end with a dispenser nozzle 58 that can be closed with a cap 59.

  To release the substance, the user presses on the wall of the bottle 51 to release the substance contained in the bottle in the direction of the dispenser member 53 and opens the valve 56 under the pressure of the substance. Cap 59 may need to be loosened to allow air to escape during filling.

  Next, the user removes the dispenser member 53 from the bottle 51, and places the dispenser member 53 in, for example, a bathtub to heat the contents. When the color of the indicator 10 changes, the user removes the cap 59 and discharges a certain amount of the substance contained in the internal space 70.

  In the embodiment described above, the dispenser member 53 is removed from the bottle 51 when discharging the substance.

  In the variant shown in FIG. 15, the dispenser member 53 'is permanently connected to the bottle 51 by means of a flexible tube 60.

  By immersing the dispenser member 53 in hot water as shown in FIG. 16, a certain amount of substance contained in the dispenser member 53 can be heated, and if necessary, the bottle 51 is floated on the surface of hot water. It is possible.

  Of course, the invention is not limited to the embodiments described above.

  The device can be heated by exposure to sunlight.

  Further, the device can be provided with a safety member to prevent the release of substances whose temperature has become too high.

  As an example, FIG. 17 shows a partial cross-sectional view of another modified example of the dispenser member 53. In this embodiment, the dispenser nozzle 58 is fixed inside by a shutter 80. Since it is made of a material that expands when the temperature exceeds a certain temperature, substances cannot be released at a temperature lower than 40 ° C., for example.

  Throughout the description, including the claims, the phrase "comprising" should be understood as being similar to "comprising at least one," unless expressly specified otherwise.

  Although the invention has been described herein with reference to particular embodiments, it is to be understood that these examples are merely illustrative of the principles and uses of the invention. Therefore, it will be understood that many modifications may be made to the exemplary embodiments and other arrangements may be devised without departing from the damping and scope of the present invention as defined by the appended claims. Should be.

1 is a schematic and partial perspective view of a pouch packaging apparatus of the present invention. FIG. 2 is a schematic and partial cross-sectional view taken along II-II of a sheet used for manufacturing the pouch of FIG. 1. FIG. 3 is a schematic and partial cross-sectional view of the pouch of FIG. FIG. 2 is a schematic and partial cross-sectional view of an example of a ballast. FIG. 2 is a schematic and partial cross-sectional view of an example of a ballast. FIG. 4 is a schematic and partial view of a packaging pouch constituting another embodiment of the present invention. FIG. 2 is a schematic and partial view of the pouch of FIG. 1 immersed in hot water. FIG. 2 is a schematic and partial view of the pouch of FIG. 1 secured to a radiator. FIG. 4 is a schematic and partial view of the air that constitutes another embodiment of the present invention. FIG. 4 is a front view of another embodiment of the container of the present invention in a schematic and partial manner. FIG. 4 is a side view showing another embodiment of the container according to the invention in a schematic and partial manner. FIG. 12 is a schematic diagram showing a state in which the apparatus of FIGS. 10 and 11 is partially immersed in hot water. FIG. 4 is a schematic elevation view of an apparatus constituting another embodiment of the present invention. 14 is a schematic and partial longitudinal sectional view of the device of FIG. The schematic perspective view of a modification. The apparatus of FIG. 15 in a state immersed in hot water. FIG. 15 is a schematic partial view showing a modified example of the member for measuring and taking out in FIG. 14.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Packaging apparatus, pouch 2 Flexible sheet 3 Flexible sheet 4 Metal layer 5 Layer of thermoplastic material 6 Film 8 Notch 9 Hook 10 Patch 11 Strip 11a Blue range 11b Green range 11c Red range 17 Pot 18 Knob part 21 Hole 22 Tube 23 Deformation range 25 Bottle 26 Neck 27 Conventional cap 28 Wall 29 Elastic knob pair 30 Radiator 31 Bar 35 Removable stop 39 Scale 50 Packaging device 51 Bottle 52 Neck 53 Dispenser member 53 'Dispenser member 54 threaded edge 55 opening 56 valve 57 sealing lip 58 dispenser nozzle 59 cap 60 flexible tube 70 internal space 80 shutter

Claims (40)

A container containing a single treatment substance,
An indicator configured to change state as a function of temperature;
An apparatus comprising:   The indicator is configured to change states when the temperature reaches a first value a first time, and when the temperature reaches a second value higher than the first value a second time. The apparatus of claim 1, wherein   The apparatus of claim 1, wherein the indicator has an appearance that varies with temperature.   The device of claim 3, wherein the indicator changes with temperature.   4. The device of claim 3, wherein the indicator has a two-sided appearance with temperature.   The device of claim 3, wherein the indicator comprises a thermochromic dye.   The apparatus of claim 1, wherein the indicator is configured to emit volatile and fragrant materials when the temperature exceeds a predetermined value.   The device of claim 1, wherein the indicator comprises at least one flexible support fixed on the container.   The device of claim 1, wherein the container comprises a sachet.   The apparatus of claim 1, wherein the indicator changes state when the temperature reaches a value in the range of 30C to 40C.   The apparatus according to claim 1, wherein the container includes a fixing member capable of fixing the container on a radiator.   The apparatus of claim 1, wherein the vessel comprises a ballast that provides the vessel with zero or negative buoyancy in water.   The device of claim 1, wherein the substance comprises at least one of a cosmetic and a care substance.   14. The device according to claim 13, wherein the substance is selected from shampoos, shower gels, artificial tanning substances, film forming compositions, mask forming compositions, and massage oils.   9. The device according to claim 8, wherein the flexible support is fixed to the container with an adhesive. Comprising a container and an indicator, wherein the container comprises:
A storage space containing a treatment substance and having a first volume;
A dispenser member having a second volume smaller than the first volume, wherein the dispenser member can communicate with the liquid storage space;
The indicator is configured to change state as a function of temperature;
A packaging device.   The apparatus of claim 16, wherein the dispenser member is configured to contain a dose of material.   The indicator is configured to change states when the temperature reaches a first value a first time and when the temperature reaches a second value higher than the first value a second time. 17. The device according to claim 16, wherein:   17. The device of claim 16, wherein the indicator has a temperature-varying appearance.   The apparatus of claim 19, wherein the indicator changes color with temperature.   20. The device of claim 19, wherein the indicator has a two-sided appearance with temperature.   20. The device of claim 19, wherein said indicator comprises a thermochromic dye.   17. The device of claim 16, wherein the indicator is configured to emit volatile and fragrant materials when the temperature exceeds a predetermined value.   17. The device of claim 16, wherein the indicator comprises at least one flexible support secured to the container.   The device of claim 24, wherein the flexible support is secured to the container with an adhesive.   17. The device of claim 16, wherein the dispenser member is detachably connected to the remainder of the container.   27. The apparatus of claim 26, wherein the dispenser member is configured to close the reservoir space in a sealed manner.   17. The device of claim 16, wherein the dispenser member is connected to the remainder of the container in a non-removable manner.   17. The device of claim 16, wherein the dispenser member is connected to the reservoir via a flexible tube.   17. The apparatus of claim 16, wherein the indicator changes state when the temperature reaches a value in the range of 30C to 40C.   17. The device of claim 16, wherein the container includes a securing member that allows the container to be secured to a radiator.   17. The device of claim 16, wherein the container comprises a ballast that provides the container with zero or negative buoyancy in water.   17. The device according to claim 16, wherein the substance is at least one of a cosmetic and a care substance.   34. The device according to claim 33, wherein the substance is selected from shampoos, shower gels, artificial tanning substances, film forming compositions, mask forming compositions, and massage oils. Comprising a container containing the treatment substance, wherein the container comprises a fixing member enabling the container to be fixed to the radiator; and
An indicator configured to change state as a function of temperature;
A packaging device comprising: A container containing a treatment substance, said container comprising a ballast that provides the container with zero or negative buoyancy in water;
An indicator configured to change state as a function of temperature;
A packaging device comprising: A container for containing the treatment substance;
An indicator configured to change state with temperature;
A packaging device comprising: A method of treating a treatment substance contained in a packaging device as defined in claim 1,
Exposing the packaging device to at least one of a heat source that raises the temperature of the substance at least until the indicator changes state, and a cold source that lowers the temperature of the substance until the indicator changes state. ,
Applying the substance,
A method comprising:   The method of claim 38, wherein the heat source comprises at least one of hot water, a hot surface, and a radiator. A method of applying a treatment substance contained in an apparatus comprising a liquid storage space and a dispenser member as defined in claim 16,
Refilling the dispenser member with a dose of material;
A heat source that allows at least the dispenser member to raise the temperature of the substance contained within the dispenser member, at least until the temperature indicator changes state; and a heat source for the substance contained within the dispenser member. Exposing the temperature to at least one of the cold sources that can be reduced at least until the temperature indicator changes state;
Applying the substance contained in the dispenser member;
A method comprising:

Images