EP0247136A1

EP0247136A1 - Stearine candle and a method for producing the same

Info

Publication number: EP0247136A1
Application number: EP19860906978
Authority: EP
Inventors: Mats Olsson; Lennart Magnusson; Dan Nordquist
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-11-12
Filing date: 1986-11-06
Publication date: 1987-12-02
Also published as: SE8505341D0; WO1987003004A1; SE8505341L

Abstract

Une bougie de stéarine comprend un bloc (1, 2) de bougie préférablement carrée munie d'une mèche (3) et sur les bords duquel sont fixés de préférence des films de plastique transparent (4) ou un autre matériau analogue, où figurent des images ou un texte d'annonces publicitaires et qu'entoure une couche continue de paraffine (8). En raison de la section transversale du bloc de bougie et en raison des films de plastique incorporés dans ledit bloc les parois continues, composées de parties d'angle non fondues et du film de plastique auquel adhère de la stéarine sont conservées, même lorsque la bougie est considérablement consumée. Ladite bougie peut également comprendre une base (5), où peut figurer un texte en relief (6) recouvert d'une couche de couleur (7).A stearin candle comprises a block (1, 2) of preferably square candles provided with a wick (3) and on the edges of which are preferably fixed films of transparent plastic (4) or other similar material, which include images or ad text and surrounded by a continuous layer of paraffin (8). Due to the cross section of the candle block and due to the plastic films incorporated in said block the continuous walls, composed of unmelted corner portions and the plastic film to which stearin adheres are preserved, even when the candle is considerably consumed. Said candle can also include a base (5), in which a relief text (6) can be covered with a layer of color (7).

Description

STEARh E CANDLE AND A METHOD FOR PRODUCING THE SAME

The present invention refers to a stearine candle and a method for pro¬ ducing the same. i

< The stearine candles now on the market generally have the drawback that

5 they change shape in an uncontrollable way when they are burned-out. In many cases such a deformation is acceptable and may under circumstances even produce desirable esthetical effects but particularly when candles of square or similar regular shape are concerned a deformation is not desired. It is even less acceptable when molten stearine breaks through 10 a planar candle wall. One object of the invention has therefore been to provide a candle which remains substantially intact during the entire burning time.

Another object has been to create a candle which offers an extra effect in the shape of an illuminated image or text surface. To accomplish these 15 and further objects the invention has the characteristics stated in the claims.

The accompanying drawing shows an examplifying embodiment of the inven¬ tion where

Fig. 1 is a perspective view of a stearine candle according to the in- 20 vention whereas

Fig. 2 is a section through the candle illustrated in fig. 1 and

Fig. 3 schematically shows a stage in the manufacturing of the candle according to fig. 1 and 2 and

Fig. h is a top view of a partly burned-out candle.

25 The stearine candle shown in fig. 1 comprises a main portion 1, which has a square cross section and which at the upper end thereof continues ^"* - in a substantially pyramid shaped upper end portion 2, through the cen¬ tral part of which the wick 3 extends. At the outer surface of the main portion 1 of the candle there are provided covering parts h for a pur-

30 pose to be described and the candle is terminated downards by a base 5 which has relief portions 6 perferably forming a text for instance the name-of an enterpr ⁱ se. S ⁱ nce these rel iefs cons i st of stearine material the outer portions thereof are preferably covered by paint 7 for pro¬ vid ing a sui table contrast to the rest of the candle .

As appears from fig. 2 at least the main part of the candle is addi- tionally covered by a thin layer 8 of paraffin or the like. In practice the entire candle is dipped in so called dip paraffin before the base is moulded.

The cover parts h , which may consist of transparent films which only need to have a thickness of some hundreds ₀f _{a wm t} serve a double pur- pose since they preferably have a text which for instance can point out special services of an enterprise or one or several images or the like and further serve to maintain the shape of the candle, which will appear from the following description. As a consequence of these pro¬ perties the cover parts will further give the candle still another uni- que quality, i.e. the capability of showing one or several illuminated advertising texts or images. When the top 2 of the candle has been burned-out and the flame as a consequence thereof is located inside the cover parts these latter will be illuminated by the flame thus giving said effect.

Also the base 5 has an important influence as regards the function of the candle. It provides a text surface which deviates from the text surface constituted by the cover parts h and further it prevents the candle from collapsing in spite of the lacking cover parts in the lower part of the candle.

These properties fo the candle of the invention will now be explained more in detail with reference to fig. .

In this figure the numeral 9 designates the so called candle cup, i.e. the stearine material which is in a thinly fluid condition. This candle cup has in a top view a substantially circular shape which means that it reaches the sides of the square candle at the centre thereof. The stearine mass in the corners of the candle is then still substantially uninfluenced and the cover parts k , which have a considerably higher melting point than the stearine prevent the candle cup from breaking throLFgh the candle wall. ~

It has also been proved that a plastic sheet k although very thin has the capability of forming together with stearine mass adhering to the plastic sheet a wall portion 10 which together with the intact corner 5 portions 11a, lib generate an intact but of course in part of its ex¬ tension relatively thin continuous wall. It is obvious that a text or image upon said film or sheet will be visible in a very attractive manner due to the flame inside the same.

. When the flame and consequently also the candle, cup 9 has passed the 10 main part 1 and has begun to melt itself down into the base 5 the thicker wall thickness of this one and the fact that it has been moulded from a stearine compound having a higher melting point than the rest of the candle prevents the candle cup from breaking through the candle wall also in this part of the candle which means that the candle will main- 15 tain its outer shape.

In order to make the candle self-extinguishing the wick according to the invention is cut about 5 mm from the bottom of the candle. When moulding the base some part of the stearine compound with higher melting point is allowed to melt into the bottom of the "basic" candle which reduces 20 the flame.

According to the invention the candle as now described may be produced in the following manner:

In a first step the entire candle with the exception of the base 5 is produced in a moulding procedure. As a result a blank 12 is obtained 25 which has the shape shown in fig. 3, i.e. having substantially the same height as the completed candle but lacking the base. Transparent plastic sheets k provided with a desired text or image are then secured to the outer sides of the main part 1.

To this end the plastic sheets k may have an adhesive layer.

30 In order to still further fix the sheets 4 the candle blank so obtained is dipped in melted paraffin so that the thin paraffin layer as mentioned above and which surrounds at least the main part 1 is generated. The candle is then according to fig. 3 placed in a mould 13 for moulding the base to the rest of the candle.

In the illustrated example where the base is to have a text in relief the mould may entirely or in part be made from a material with rubber-like properties such as silicone rubber or it may accordinq to fig.3 have mov¬ able tool blocks 14a, I b provided with recesses 15 for the intended text.

The blank 12 has as appears from fig. 2 and 3 by moulding or planing in the portion thereof where the base is to be located been provided with a recess 16 which extends around the candle and which in combination with a corresponding recess 17 in the mould or the blocks constitutes the cavity into which the stearine compound which is to form the base 5 is poured.

As appears from fig. 2 the stearine compound from which the base is made also forms the bottom of the candle and thus contributes to the extingui¬ shing effect just mentioned. Since an air pocket is generally generated during moulding the candle part 1 and this air pocket is filled when the base is moulded the bottom layer will as shown not be of equal thickness.

By admitting the raised relief portions 6 to pass an inking feed roller or the like the coloured layer 7 is obtained and manufacturing of the candle is then completed.

In order to achieve the objects referred to it is necessary that the candle block has a transverse section which deviates from the circular shape in such a manner that unmelted portions similar to the portions 11a, 11b in fig. are generated and that said portions are such that they in fact will form columns which in combination with the covering parts with stearine adhering thereto will form substantially rigid and intact walls. As an alternative to the square transverse section illustrated in the drawing also other polygon shapes or other shapes having the characteristics referred to may be used. The covering parts may of course be contiguous in which case the sheet may be in the shape of a flexible tube which may be forced on the candle block and they can of course consist of plates of plastic or some other suitable material. The covering parts may also be surrounded by a layer of coloured stearine or the like.

Claims

CLAIMS.

1. Stearine candle, c h a r a c t e r i z e d in that in comprises one or several preferably transparent covering parts ( ) of a material with a melting point higher than that for stearine, preferably plastic, which substantially cover the outer side of the candle at least in the upper portion (1) thereof and that the candle further has a square section which deviates so much from the circular shape that the so called candle cup (9) which is generated when the candle burns is prevented from break¬ ing through the barrier formed on one hand by remaining column shaped portions (11a,11b) of unmelted stearine and on the other hand by the walls (10) which are formed by said covering parts (A) with stearine layers adhering thereto and which connect said portions with each other.

2. Stearine candle according to claim 1, c h a r a c t e r i z e d in that it comprises a base (5) which is made from a stearine compound with higher melting point than the stearine compound from which the other part of the candle is made and that the base also includes a portion which forms the bottom of the candle.

3. Stearine candle according to claims 1-2, c h a r a c t e r i z e d in that the candle has a wick (3) which ends somewhat above the bottom sur- face of the candle which is made from said stearine compound with higher melting point.

k. Stearine candle according to claims 1-2, c h a r a c t e r i z e d in that the candle comprises a^' paraffin layer (8) covering the main portion (1-3) thereof.

5. Method for producing a stearine candle according to claim 1, c h a r - a c t e r i z e d in that the main portion (1-3) of the candle is pro¬ duced by a moulding procedure, that transparent covering parts (4) pre¬ ferably in the shape of one or several plastic films are then secured to the outer sides of the main portion and that at least the main portion with covering parts applied thereto is dipped into molten paraffin or the like for generating a continuous layer of paraffin or the like.

6. Metfiod for producing a stearine candle according to claims 1-2, c h a r a c t e r i z e d in that the main portion (1-3) made my mould¬ ing in the lower portion thereof is provided with a recess (16) which extends around the candle and that the blank (12) thus obtained is placed in a mould (13) which has a cavity (17) which in combination with the recess (16) in the stearine blank forms a mold cavity for a base (15) and that a stearine compound having a higher melting point than the stearine compound from which the rest of the candle is made is poured into said mold cavity.

7. Method according to claim 6, c h a r a c t e r i z e d in that the mould (13) is so designed that contemporary with the forming of the base (5) a layer forming the bottom of the candle is generated and that the candle blank has been provided with a wick (3) which terminates somewhat above said layer forming the bottom.

8. Method according to claim 7, c h a r a c t e r i z e d in that the mould comprises elastical or displaceable parts (l4a,l4b) provided with recesses (15) which when the base is moulded are filled with stearine compound and which after moulding are turned off or displaced such that the relief portions (6) obtained at the moulding can leave the mould.