AU734855B2 - Package for a suncream - Google Patents

Description

WO 99/05038 PCT/AU98/00571 -1- TITLE: PACKAGE FOR A SUNCREAM FIELD OF THE INVENTION The present invention relates to a package and in particular to a package for a suncream.

BACKGROUND OF THE INVENTION The invention has been developed primarily for use with suncreams or other forms of sun screening creams and will be described hereinafter with reference to that particular application. It will be appreciated that the invention is not limited to that field of use and is also applicable to other skin care products. In this regard it should be noted that the term "suncream" as used herein is intended to include any preparation intended for application to the skin of humans and which has: a sun screening factor; or the ability to reduce the intensity of ultraviolet (UV) radiation that would otherwise be incident upon the skin; or a soothing or healing effect to skin which has become "sun burnt" or otherwise damaged due to exposure or over exposure to UV of other radiation.

Accordingly, this term encompasses after sun preparations, sun blocking creams, barrier creams or the like, whether or not these are intended for direct use as a suncream or whether contained within a cosmetic preparation.

Hitherto, sun creams or other skin care products have been packaged in conventional plastic or glass bottles to provide a convenient transportable reservoir of the cream. Often such bottles will carry information about the sun protection factor (SPF) offered by the cream or product contained within. The person or persons intending to use the cream as an impediment against skin damage caused by the sun's rays, and more particularly by UV radiation, can use this information as a guide to the level of protection offered to their skin by the cream. However, SPF information is neither readily understood nor properly used by a significant percentage of the population and does not provide anything other than rudimentary information on the circumstances in which the cream will be beneficial.

DISCLOSURE OF THE INVENTION It is an object of the present invention, at least in the preferred embodiment, to overcome or substantially ameliorate one or more disadvantages of the prior art.

According to the invention there is provided a package for the suncream including: at least one sidewall for defining a cavity to contain the suncream; display means being integral with the sidewall for changing colour to indicate to a person that one or more predetermined ambient conditions warrant the application of the suncream to the person's skin; and an opening in the sidewall for allowing removal of the suncream from the cavity.

Preferably, one of the predetermined ambient conditions includes the intensity of UV-radiation incident upon the display means. More preferably, the display means .*.*includes a photochromic material.

In other preferred embodiments, one of the predetermined ambient conditions includes the temperature of the display means. Preferably also, in such embodiments the display means includes a thermochromic material.

In a preferred form the display means is integrated with the sidewall with adhesive.

S: Preferably, the opening is selectively closeable by a lid, wherein the lid is coloured to correspond with the colour taken by the display means when indicating that suncream should be applied to the user's skin. More preferably, the lid is rotatably mounted to the sidewall for movement between an open and a closed configuration.

In a preferred form, the package includes an outer surface area which is greater than the surface area of the display means.

Preferably, the display means includes a region of the sidewall and a multicoloured strip which is located adjacent to that region for indicating which of the colours taken by the region correspond to a high intensity of UV radiation. More preferably, the strip is adhered to the outer surface.

Preferably also, the package is formed from a plastic material, the material being mixed prior to moulding with a predetermined quantity of a photochromic dye such that the display means includes the outer surface area of the sidewall.

BRIEF DESCRIPTION OF THE DRAWINGS A preferred embodiment of the invention will now be described, by way of example only, with reference to the accompanying drawings in which: Figure 1 is a side view of a bottle according to the invention; WO 99/05038 PCT/AU98/00571 -4- Figure 2 is a side view of an alternative bottle according to the invention; Figure 3 is a side view of a further alternative bottle according to the invention; Figure 4 is a perspective view of a satchel according to the invention; and Figure 5 is a perspective view of a tube according to the invention.

PREFERRED EMBODIMENTS OF THE INVENTION Referring to Figure 1 there is illustrated a bottle 1 including a base 2 and a continuous sidewall 3 extending upwardly from the periphery of base 2 to a neck 4.

The neck defines an opening 5 which is selectively blocked by a lid 6. Base 2 and sidewall 3 define a cavity for containing a suncream or the like which a person selectively applies to their skin to reduce the harmful effects of the suns rays. As discussed above, these harmful effects are predominantly due to UV radiation and, accordingly, suncream is intended to be translucent or opaque to such radiation.

Typical suncreams include active ingredients such as zinc oxide, titanium dioxide, octyl methoxy cinnimate, octyl crylene, butyl methoxy dibenzoylmethane, methoxy benzophenone, phenylbenzimidazole-5-sulphonic acid to create between the sun and the skin a barrier to UV radiation. Other active ingredients are known to those in the art. Moreover, some suncreams utilise a combination of the above or other ingredients.

Bottle 1 is formed from plastics material and preferably from high density polyethylene (HDPE). Other bottles are produced from other plastics such as: low density polyethylene (LDPE); high density polypropylene (HDPP); low density polypropylene (LDPP); PET (Recycled plastic); or PVC. It is also known to package suncreams in glass or other bottles.

WO 99/05038 PCT/AU98/00571 In the Figure 1 embodiment, the HDPE is mixed prior to moulding with a photochromic dye that is responsive to the intensity of ultraviolet radiation incident thereupon. Sufficient dye is included to ensure that the colour of the resultant package, as perceived by a person, varies with the intensity of the UV radiation incident upon the bottle. Accordingly, bottle 1 provides an indication to a person that ambient conditions warrant the application of the suncream.

Referring now to Figure 2, where corresponding features are denoted by corresponding reference numerals, there is illustrated an alternative bottle 10. Bottle is a conventional plastics bottle which includes an adhered label 11 having a photochromic region 12. Disposed adjacent to region 12 is a colour placard 13 which includes a plurality of discreet segments of colours which correspond to the colour indicated by region 11 when subject to different respective intensities of ultraviolet radiation. Label 11 also includes explanatory indicia indicating which of the colours in the respective segments correspond to a high level of radiation and as such when the suncream should be applied. For example, when the colour of the region corresponds to the colour of a particular segment the indicia may advise that persons with fair skin should apply the suncream to any exposed skin, while correspondence with a different segment may advice that any person would be advised to apply the suncream.

In some embodiments either label 11 is removable or region 12 and placard 13 are removable. In further embodiments label 11 is removably attached to neck 4 by a cord or, alternatively, it includes an aperture which receives neck 4. In other WO 99/05038 PCT/AU98/00571 -6embodiments label 11 is maintained in engagement with bottle 10 by way of shrink wrap.

Another alternative bottle 20 is shown in Figure 3. Bottle 20 includes a base 21 and a sidewall 22 extending upwardly from the base to define an opening 23. Opening 23 is selectively closed by a lid 25. Base 21 and sidewall 22 are produced from HDPE, while lid 25 is produced from HDPE including a photochromic dye.

Moreover, base 21 and sidewall 22 are coloured to correspond to the colour of lid 23 when subject to a high level of UV radiation. Again, this indicates to a person that the UV radiation levels are sufficiently intense to warrant the use of the suncream included within bottle In other forms, it is only the portion of sidewall 22 immediately adjacent lid 23 that is coloured to correspond to the colour of lid 23 when subject to a high level of UV radiation. As will be appreciated by those skilled in the art from the disclosure herein, any portion of the bottle, including the lid, can include photochromic material of the kind which will provide a perceptible colour change to a person upon variation in the intensity of UV radiation.

Packages other than bottles can also embody the invention. For example, a satchel 30, such as that used for the sale of small quantities of suncream or for promotional purposes, is illustrated in Figure 4. Satchel 30 includes two opposed frangible sidewalls 31 and 32 which are heat welded or crimped together to enclose the suncream. Sidewall 31 includes a photochromic dye, while sidewall 32 is coloured such that when the colour of the two sidewalls correspond it indicates that use of the suncream enclosed in the satchel is warranted.

WO 99/05038 PCT/AU98/00571 -7- The photochromic dye is included integrally within sidewall 31. In other embodiments, however, the photochromic dye is included within a layer of material that is laminated to sidewall 31 and not sidewall 32.

In an alternative embodiment both sidewalls include photochromic dye.

The invention is equally applicable to packages such as tubes or lined cardboard containers. By way of example, a tube 40 embodying the invention is illustrated in Figure 5. Tube 40 includes a sidewall 41 which extends between a flattened end 42 defined by a heat weld 43 and a cylindrical end 44 defining a threaded opening (not shown). The opening is selectively covered by a lid 45 for preventing inadvertent dispensing of the suncreamrn contained within the tube.

Sidewall 41 is impregnated with a photochromic dye that is responsive to the intensity of ultraviolet radiation incident thereupon. Sufficient dye is included to ensure that the colour of the resultant package, as perceived by a person, varies with the intensity of the UV radiation incident upon the tube.

In some embodiments the display means changes colour in response to different temperatures. In one of these embodiments the package contains an after sun lotion and the region is intended for placement against the skin of a person. Once removed from the skin, if the region takes a predetermined colour this indicates to the person that the lotion should be applied to their skin.

Although the invention has been described with reference to particular examples it would be appreciated by those skilled in the art that it may be embodied in many other forms.

Claims (13)

1. A package for suncream including: at least one sidewall for defining a cavity to contain the suncream; display means being integral with the sidewall for changing colour to indicate to a person that one or more predetermined ambient conditions warrant the application of the suncream to the person's skin; and an opening in the sidewall for allowing removal of the suncream from the cavity.

2. A package according to claim 1 wherein one of the predetermined ambient conditions includes the intensity of UV-radiation incident upon the display means.

3. A package according to claim 2 wherein the display means includes a photochromic material.

4. A package according to claim 1 wherein one of the predetermined ambient conditions includes the temperature of the display means. 15

5. A package according to claim 4 wherein the display means includes a thermochromic material.

6. A package according to claim 1 wherein the display means is integrated with the S• sidewall with adhesive.

7. A package according to claim 1 wherein the opening is selectively closeable by a lid, wherein the lid is coloured to correspond with the colour taken by the display means oo when indicating that suncream should be applied to the user's skin.

8. A package according to claim 7 wherein the lid is rotatably mounted to the sidewall for movement between an open and a closed configuration.

9. A package according to claim 7 including an outer surface area which is greater 25 than the surface area of the display means.

A package according to claim 1 wherein the display means includes a region of the sidewall and a multi-coloured strip which is located adjacent to that region for indicating which of the colours taken by the region correspond to a high intensity of UV radiation.

11. A package according to claim 10 wherein the strip is adhered to the outer surface.

12. A package according to claim 1 being formed from a plastic material, the material being mixed prior to moulding with a predetermined quantity of a photochromic dye such that the display means includes the outer surface area of the sidewall.

13. A package substantially as herein described with reference to any one of the embodiments of the invention illustrated in the accompanying drawings. DATED this 31 st Day of August, 2000 PREMIUM PHARMACEUTICALS PTY LIMITED 0**