|Publication number||US20050164141 A1|
|Application number||US 11/042,805|
|Publication date||Jul 28, 2005|
|Filing date||Jan 24, 2005|
|Priority date||Jan 22, 2004|
|Also published as||WO2005072339A2, WO2005072339A3|
|Publication number||042805, 11042805, US 2005/0164141 A1, US 2005/164141 A1, US 20050164141 A1, US 20050164141A1, US 2005164141 A1, US 2005164141A1, US-A1-20050164141, US-A1-2005164141, US2005/0164141A1, US2005/164141A1, US20050164141 A1, US20050164141A1, US2005164141 A1, US2005164141A1|
|Inventors||Robert Paasch, Andrew Barros|
|Original Assignee||Paasch Robert W., Andrew Barros|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (11), Referenced by (5), Classifications (4), Legal Events (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application claims priority from U.S. Provisional Ser. No. 60/538,725, filed Jan. 22, 2004 and U.S. Provisional Ser. No. 60/608,720, filed Sep. 10, 2004.
1. Field of the Invention
The present invention is related to the field of candles, and more specifically to an improved candle wick.
2. Description of the Related Art
Candles have become popular for decorative and aromatic purposes. The candles may be manufactured from a wax, such as paraffin, vegetable or beeswax.
Scented wax candles have been widely used for producing a scent. Such candles are conventionally made by blending an aromatic substance into melted wax. The resulting aromatic mixture is poured into a candle mold with a fiber wick disposed therein. The wick is generally made from an absorbent twine such as cotton. The wax then cools, forming a solid candle.
When the wick of the candle is lit, the heat gradually melts the wax adjacent the wick. This melted wax forms a melt pool. When the wick burns, the wick must have a strong capillary action to absorb liquid wax pooled at the top of the candle and draw it up the wick. The wax provides fuel for the flame so that the wax burns instead of the wick. As the wax becomes vaporized by the flame, aromatic substances are dispersed.
Changes to the material used for the wick, the thickness of the wick, the core material of the wick, and the braid of the wick all affect how much capillary action the wick provides. The greater the capillary action, the greater amount of wax provided to the flame. The more wax that is provided to the flame, the more aromatic substances can be dispersed. However, if too much wax is provided to the flame, the flame will not receive enough oxygen to burn all of the wax effectively and smoking will result.
As the scented wax burns, the aromatic substance in the wax is released into the air. The released scent disperses into the air, lending a pleasant scent to the surrounding area.
Scented wax candles are generally inefficient for scent generation for multiple reasons. First, during use, most of the heat of the candle flame travels upward and away from the scented wax. Accordingly, much of the aromatic substances remain in the melted wax. Wicks are also often designed to be thinner to avoid releasing a lot of soot and bad smell after being extinguished. Thinner wicks are also used to minimize the amount of time a wick smolders after the candle flame is extinguished. A smoldering wick also presents a safety hazard. As a result of thinner wicks, candles do not burn as much wax, thus limiting the amount of aromatic substances released into the air. It would be desirable to increase scent generation without having to increase wick size. Alternatively, it would be desirable to increase wick size without the negative smoking side effects.
It is often desirable to use thicker wicks because they have greater capillary action (necessary for larger candles with a larger wax melt pool) and thus produce a larger more beautiful flame and release more aromatic substances while burning. Unfortunately, despite the benefits of thicker wicks they are often avoided due to their added soot and smoking when extinguished. Thus it would be desirable to have the option of using a thicker wick while minimizing increases in the soot and smoky smell released during extinguishing, and while minimizing smoldering during extinguishing.
For the foregoing reasons, there is a need for an improved scent dispenser for use with candles that permits the user to easily change the type, rate or strength of scent for dispensing. It would be a significant advance in the art of scent dispensing to develop a scent dispenser for use with candles, which efficiently provides pleasant scents in a safe manner, while being inexpensive and easy to use.
The present disclosure overcomes these problems and limitations of the prior art.
Generally, the present disclosure provides for placing aromatic substances and other materials in a wick to produce a scented wick. The scented wick releases scent while being burned. The scented wick also releases less smoke and smolders less after being extinguished. The scented wick can be used to produce a scented candle, with or without scented wax.
These and other features and advantages of the present disclosure will become more readily apparent from the following Detailed Description, which proceeds with references to the drawings, in which:
FIGS. 1A-C are diagrams showing how to produce a scented wick.
FIGS. 4A-B are diagrams comparing different characteristics of conventional wicks with characteristics of scented wicks.
The present invention relates to a candle wick having an aromatic substance embedded therein, and methods for making the scented wick and a candle using the scented wick. The resultant scented wick can be employed in conjunction with scented wax to produce a scented candle. The scent in the wax and the scent in the wick could be different, producing a new aromatic effect during burning. Also, the resultant scented wick can be employed in conjunction with unadulterated (unscented) wax (i.e., a wax base lacking an aromatic substance) to produce a scented candle.
The aromatic substances are impregnated into the wick that then releases a scent that masks, neutralizes, or counteracts the normal smell typically released by a wick when extinguished. The result is an odorless or seemingly odorless extinguishing. In one embodiment, the scent is released after the flame is extinguished while the wick is still smoldering. By creating an odorless extinguishing process, the remaining wax melt pool can continue to release a scent (in the case of scented wax) for a short time after extinguishing.
By selecting the proper aromatic substances, or by mixing the proper materials with the aromatic substances, the wick can have a shorter smoldering time and reduced smoke when extinguished. For example, using fire retardant aromatic substances in the wick, or mixing fire retardant materials with the aromatic substances, the wick has a reduced smoldering time and in turn creates less smoke.
Even when the wick does smolder, scent continues to be released from the wick reducing offensive odors. The resultant wick releases fewer un-burnt carbons than conventional wicks after being extinguished.
Wicks used for candles generally are constructed of a variety of wick types, including without limitation cored wicks, flat-braid wicks, square-braid wicks, and HTP wicks. Such wicks are known in the art and are capable of being impregnated and/or coated with conventional scented compounds.
Conventional aromatic substances suitable for use in candles include liquid scent compounds, which can be either organic (oil-based) scent compounds or aqueous (non-oil-based) liquid scent substances. Chemicals also may be used. As well, crushed powdered incense can be employed. Scent enhancers are compounds that stabilize the aromatic substances, chemically interact with such substances, and/or facilitate scent release when the scented wax or wick is burned. Aromatic substances and scent enhancers are known in the candle fragrance art. Other substances may also be used.
The wick may also be oxygenated. An oxygenated wick is able to burn more wax from a wax pool without producing smoke. One conventional limitation to increasing the capillary action of a wick was that wax will not be burned due to lack of adequate oxygen and will thus produce smoke. Oxygenating the scented wick may allow for greater capillary characteristics in the wick without the negative downsides of smoking during burning.
A scented wick may be produced as described in
Optionally a fire retardant 13 may also be added to the mix to further reduce smoke and smoldering produced by the resulting scented wick. For example, a fire retardant material similar to that used in clothing may be used. The fire retardant may be part of the aromatic substance 11 of another material 13. The fire retardant material can be any commercially available chemical used for producing a fire retardant effect when applied to a material. For example, any of the fire retardant materials produced by Flame Stop, Inc., Fort Worth, Tex. The fire retardant can be chemicals, putty, liquids, additives, etc.
A scented wick may be used in the manufacture of a candle in conventional and known manners. For manufacture of a candle having a scented wick as described herein, the wick need not be wax-sealed prior to candle manufacture. Alternatively, a scented wick may be produced for individual sale. Such individual scented wicks might preferably be wax-sealed 20 to better fix the scent 11 within the wick 10.
A wick 10 having an aromatic substance 11 embedded therein is beneficial in many ways over a traditional scented candle with a standard candle wick. For example, the scented wick 10 might continue to release scent for a short time after the flame is extinguished. The released scent masks the sooty, burnt smell commonly associated with extinguishing a wick. The wick 10 of the present disclosure therefore reduces the disagreeable odors produced when a candle is extinguished. The wick 10 may also counteract or retard the disagreeable smoke odors producing a seemingly odorless extinguishing.
The scented wicks described herein are also believed to be non-allergenic, in that they release fewer unburnt carbons and soot filled bacteria into the air compared to conventional candle wicks. According to
Another benefit is that a thicker wick can be used without the conventional increases in smoldering and smoking. For example, according to
Furthermore, the scented wicks 42 or 43 retain the benefits of greater capillary action resulting in more wax being burned while the candle is lit. The greater wax burn produces more scent and a brighter flame. Accordingly, the scented wicks 42 and 43 can be thicker without increased smoldering and soot thereby providing more candle design options.
The present scented wicks 42 and 43 may have more illuminating flames, enhancing the beauty of the flame and the aesthetic appeal of a candle having such wick. Selecting different aromatic substances, or by mixing the different materials with the aromatic substances, can change any property of the flame including the color and/or brightness.
The present scented wick can be used in conjunction with unadulterated wax. From an aesthetic standpoint, some aromatic substances can discolor or adversely affect the structure or appearance of wax compositions. This is shown in
In conventional scented candle 50, the embedded aromatic substance 11 may interact with the wax 58. Such undesirable chemical interaction and interference can diminish scent dispensing efficiency. Placement of the aromatic substance 11 in the wick 10 eliminates the chance of an adverse reaction between the aromatic substance 11 and the wax 58 in the candle 53.
The scented wick 10 according to the present disclosure can also increase the scent “volume” per burn time as shown in
Conventional scented candles also possess a limited shelf life, owing to the porosity of wax. As shown in
Another problem exists where conventional scented wax candles spread their scent while unlit and on display. According to
Another shortcoming of conventional scented candles is the possible unfavorable interaction between the wax and the aromatic substance. Some wax compositions may negatively alter the aromatic substance's physical and chemical properties, potentially suppressing scent generation or producing undesirable odors. For example, a burning candle typically produces a “burning wax” smell that an embedded scent is intended to cover-up. A negative interaction can reduce the efficiency of the embedded scent, making the waxy odor 60 more prominent. The scented wick 10 precludes the need for an aromatic substance 11 in the wax 58 and facilitates a stronger scent release compared to the burning wax odor 60.
Also, with regard to using the present scented wick 10 in conjunction with unadulterated wax, the scented wick 10 according to the present disclosure also allows easier candle manufacturing. For example, traditionally non-scented candles and scented candles of varying scents would require different wax mixtures. The manufacturer would be required to keep non-scented wax mixes separate from each of the different scented wax mixes. A scented wick precludes the need for keeping all the different wax mixtures separate because a single wax mixture can be used to make both non-scented candles and scented candles of varying scent. One of skill in the art would recognize that the present invention could of course also be used with scented wax too.
A person skilled in the art will be able to practice the present invention in view of the description present in this document, which is to be taken as a whole. Numerous details have been set forth in order to provide a more thorough understanding of the invention. In other instances, well-known features have not been described in detail in order not to obscure unnecessarily the invention.
While the invention has been disclosed in its preferred form, the specific embodiments thereof as disclosed and illustrated herein are not to be considered in a limiting sense. Indeed, it should be readily apparent to those skilled in the art in view of the present description that the invention can be modified in numerous ways. The inventor regards the subject matter of the invention to include all combinations and sub-combinations of the various elements, features, functions and/or properties disclosed herein.
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|Mar 11, 2005||AS||Assignment|
Owner name: PAASCH S SCENTED WICKS AND CANDLES, INC., OREGON
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PAASCH, ROBERT W.;BARROS, ANDREW;REEL/FRAME:016093/0408
Effective date: 20050226