CN106978262B

CN106978262B - Special defoaming agent for candle and candle

Info

Publication number: CN106978262B
Application number: CN201710310058.XA
Authority: CN
Inventors: 刘小青; 储新宏; 姜颖; 魏晓星; 莫欣欣
Original assignee: Qingdao Kingking A C Co ltd
Current assignee: Qingdao Kingking A C Co ltd
Priority date: 2017-05-05
Filing date: 2017-05-05
Publication date: 2020-08-14
Anticipated expiration: 2037-05-05
Also published as: CN106978262A

Abstract

The invention discloses a special defoaming agent for a candle and the candle. The defoaming agent comprises, by weight, 10-80% of an organic silicon compound, 5-50% of 2-octanol, 5-50% of sulfonated oil, 5-50% of an organic phosphate, and 5-50% of glyceryl oleate. The candle provided by the invention is prepared by melting basic wax, adding the defoaming agent, cooling and forming, wherein the basic wax is paraffin, plant-based wax, animal fat-based wax or mixed wax formed by mixing more than two of the paraffin, the plant-based wax and the animal fat-based wax. The defoaming agent can effectively reduce the surface tension of the wax liquid, eliminate or greatly reduce bubbles in the wax liquid, has good defoaming and foam inhibiting effects, can prevent the surface of the candle from bubbling at high temperature, and can enhance the permeability of fragrance. And the defoaming agent is used in a very small amount, so that the overall appearance performance and burning performance of the candle are not influenced.

Description

Special defoaming agent for candle and candle

Technical Field

The invention relates to the field of candle production, in particular to a special defoaming agent for a candle and a candle added with the defoaming agent.

Background

In general, some additives, such as vegetable wax, synthetic wax, microcrystalline wax, etc., are added during the manufacturing process of the candle, and among various additives, some additives have strong bonding force with air, combine a large amount of air, and continuously release the air when the raw material wax is mixed, so that the final product generates air bubbles.

In addition, the molten wax generally has a large tension, and under the influence of technological operations such as stirring, more bubbles and large bubbles can be formed and hidden in the solidified candle body, and the bubbles are hidden with a great risk, so that the surface bubbling phenomenon of the candle in a high-temperature environment can be caused, and the appearance of the candle can be seriously influenced. Meanwhile, the bubbles can wrap a large amount of essence, so that essence molecules are difficult to escape under the action of tension constraint, and the fragrance permeability of the candle is poor.

Therefore, it is urgent to reduce the tension of the wax liquid and to eliminate or greatly reduce the bubbles in the wax liquid. The defoaming method has various methods including a physical method and a chemical method, and the chemical defoaming method is most widely applied in various industries at present and has the advantages of high defoaming efficiency and convenient operation. The key to using this method is the selection of a suitable defoamer, as is the case for the wax liquid.

The defoaming agent is added into a candle raw material system, and generally achieves the purpose of defoaming through mechanisms of reducing the local surface tension of a bubble liquid film, destroying the elasticity of the film, losing the self-repairing function, reducing the viscosity of the liquid film, shortening the service life of bubbles and the like. The defoaming agent of a single compound cannot achieve ideal effects in use due to the characteristics of the defoaming agent, so that a composite defoaming agent is developed, and the composite defoaming agent is not a simple geometry of several substances with defoaming effects, but a product for comprehensively improving defoaming efficiency in a certain specific system.

Most of the bubbles formed in the candle are gas dispersed in the wax body in the form of small spheres (bubble dispersion-gas/liquid coarse dispersion with much gas in liquid and little gas), and the main causes of bubble formation are gas-liquid contact, raw material containing easily generated bubbles, and foaming speed higher than breaking speed. At present, no defoamer specially used for candle defoaming is available, satisfactory defoaming effect cannot be obtained, and a certain proportion of bubbles still remain in the product.

The invention provides a defoaming agent specially used for candles under the background.

Disclosure of Invention

The invention aims to provide a special defoaming agent for a candle, which has good defoaming and foam inhibiting effects, can effectively prevent the surface of the candle from bubbling in a high-temperature environment, and simultaneously enables the fragrance of the candle to be more intense.

The defoaming agent special for the candle comprises, by weight, 10-80% of an organic silicon compound, 5-50% of 2-octanol, 5-50% of sulfonated oil, 5-50% of an organic phosphate and 5-50% of glyceryl oleate.

The liquid wax is an oily medium, and comprises vegetable wax, paraffin, animal fat-based wax, or mixed wax of any two or more of them, and one or more additives selected from essence, dye, ultraviolet absorbent and antioxidant. Therefore, the wax liquid defoamer must be lipophilic and must be non-reactive with the wax components to ensure the stability of the candle product. An organic silicon compound, such as polydimethylsiloxane, is a defoaming agent with strong defoaming capability, integrates the characteristics of chemical stability, physiological inertia, good high-temperature and low-temperature performance and the like, can be used in a water system and a non-water system, and thus becomes the first choice of a wax liquid defoaming agent. However, because the polymer does not have a low Entry Barrier (Entry Barrier), the polymer cannot reach the surface of the foam membrane, and pure polydimethylsiloxane does not have a defoaming effect, and a proper emulsifier must be added to enable the polymer to reach a certain dispersion state, so that the polymer can really have good defoaming capability. Effective defoamers must both defoam rapidly and prevent the formation of bubbles for a relatively long period of time, but unfortunately, organosilicon compounds have poor foam suppressing capabilities. According to research, for a wax liquid system, an organic silicon compound, 2-octanol, sulfonated oil, organic phosphate and glyceryl oleate are combined, the proportion of each component is controlled at the same time, a synergistic effect is obtained, and the special defoaming agent for the candle, which has a better defoaming effect than a common industrial defoaming agent, can be prepared.

The sulfonated oil is an emulsifier suitable for a wax liquid system, and can effectively disperse the organic silicon compound, so that the defoaming capability of the organic silicon compound is fully exerted. The 2-octanol is a solvent or carrier which can ensure that the organosilicon compound, sulfonated oil and other components are fully contacted with the wax liquid system, has low surface tension and has a foam inhibition effect. Organic phosphates, such as tributyl phosphate, have low surface tension, can reduce the surface viscosity of the foam, increase the drainage rate of the liquid film, cause foam collapse, and have an auxiliary and synergistic effect on the defoaming capability of the organosilicon compounds. The glyceryl oleate is an emulsifier, has the effects of reducing the surface viscosity of foam and inhibiting foam, and is an auxiliary emulsifier which can generate a synergistic emulsifying effect with sulfonated oil to enhance the emulsifying effect. Soy glyceride is a kind of glyceryl oleate, and has excellent emulsifying effect and auxiliary emulsifying effect.

Preferably, the defoaming agent special for candles is characterized in that the organosilicon compound is polydimethylsiloxane.

Preferably, the defoamer special for candles is characterized in that the glyceryl oleate is soyaglycerol ester.

Preferably, the defoaming agent special for the candle comprises 20-40% of polydimethylsiloxane serving as an organic silicon compound, 20-30% of 2-octanol serving as a sulfonated oil serving as a sulfonated compound, 10-30% of tributyl phosphate serving as an organic phosphate and 10-20% of glyceryl oleate serving as an oleic acid ester.

The use method of any one of the defoaming agents special for the candle is that the use amount is 1-2000 ppm. The use method is carried out according to conventional operation, and the defoaming agent is directly added into the molten wax liquid, and the dosage range is selected, so that a good defoaming effect can be achieved.

The invention also provides a candle which is prepared by melting the base wax, adding any defoaming agent, cooling and forming, wherein the base wax is paraffin, plant-based wax, animal fat-based wax or mixed wax formed by mixing more than two of the paraffin, the plant-based wax and the animal fat-based wax.

Preferably, one or more of essence, dye, ultraviolet absorbent and antioxidant are also added into the base wax of the candle, so as to achieve better product performance.

The invention has the following beneficial effects:

can effectively reduce the surface tension of the wax liquid, eliminate or greatly reduce bubbles in the wax liquid, has good defoaming and foam inhibiting effects, can prevent the surface of the candle from bubbling at high temperature, and can enhance the permeability of fragrance. And the defoaming agent is used in a very small amount, so that the overall appearance performance and burning performance of the candle are not influenced.

Detailed Description

The present invention will be described in further detail with reference to specific embodiments in order to make the technical field better understand the scheme of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The first embodiment is as follows:

(1) controlling the ambient temperature to be 10-30 ℃;

(2) weighing the following raw materials: 40% of polydimethylsiloxane, 40% of 2-octanol, 5% of sulfonated oil, 5% of tributyl phosphate and 10% of glycerol oleate, and stirring and mixing uniformly to obtain the defoaming agent for the candle.

Example two:

(1) controlling the ambient temperature at 10-30 ℃;

(2) weighing the following raw materials: 70% of polydimethylsiloxane, 10% of 2-octanol, 5% of sulfonated oil, 5% of tributyl phosphate and 10% of glycerol oleate, and stirring and mixing uniformly to obtain the defoaming agent for the candle.

Example four:

(1) controlling the ambient temperature to be 10-30 ℃;

(2) weighing the following raw materials: 45% of polydimethylsiloxane, 30% of 2-octanol, 5% of sulfonated oil, 10% of tributyl phosphate and 10% of glyceryl oleate, and stirring and mixing uniformly to obtain the defoaming agent for the candle.

Example five:

(1) controlling the ambient temperature to be 10-30 ℃;

(2) weighing the following raw materials: 40% of polydimethylsiloxane, 20% of 2-octanol, 10% of sulfonated oil, 10% of tributyl phosphate and 20% of soybean glyceride, and stirring and mixing uniformly to obtain the defoaming agent for the candle.

Example six:

(1) controlling the ambient temperature to be 10-30 ℃;

(2) weighing the following raw materials: 45% of polydimethylsiloxane, 40% of 2-octanol, 5% of sulfonated oil, 5% of soybean glyceride and 5% of tributyl phosphate, and stirring and mixing uniformly to obtain the defoaming agent for the candle.

Comparative example one: production examples of conventional antifoaming agents

(1) Controlling the ambient temperature to be 10-30 ℃;

(2) weighing the following raw materials: 30% of polydimethylsiloxane, 20% of 2-ethylhexanol, 10% of tributyl phosphate, 25% of polyether and 15% of polysiloxane, and stirring and mixing uniformly to obtain the defoaming agent for the candle.

Comparative example two: production examples of conventional antifoaming agents

(1) Controlling the ambient temperature to be 10-30 ℃;

(2) weighing the following raw materials: 30% of alkyl phenyl modified polysiloxane, 10% of silicon dioxide, 5% of span-40 and 55% of 2-ethyl hexanol, and stirring and mixing uniformly to obtain the defoaming agent for the candle.

And (3) measuring the defoaming capability of each defoaming agent by using a stirring method, namely dripping different defoaming agents into foaming wax liquid which takes ammonium bicarbonate as a foaming agent and has the same foaming degree and the same volume (100ml), stirring the foaming wax liquid and keeping the temperature of the wax liquid at 70-80 ℃. From the beginning of dropping, timing to the end of foam disappearance, representing the foam breaking speed by the foam breaking time (min), wherein the shorter the time is, the faster the foam breaking speed is; the foam height (mm) after defoaming for 5min was recorded to represent defoaming efficiency, the higher the height the lower the defoaming efficiency. After the foam disappears, adding 4g of ammonium bicarbonate into the wax liquid again, and recording the height of the foam after 5min of adding the foaming agent to represent the foam inhibition capability of each defoaming agent, wherein the higher the height, the weaker the foam inhibition capability. The candle fragrance was smelled and the fragrance penetration was assessed. And storing the candle for 2-4 months at room temperature, and observing the bubbling condition on the surface of the candle. The stability of the candle was tested at 38 ℃ for 12 weeks and the appearance of oil, discoloration, etc. was observed. The performance of each defoamer is shown in the table below.

The above description of the embodiments is only intended to facilitate the understanding of the core ideas of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The special defoaming agent for the candle is characterized by comprising the following raw materials in percentage by weight: polydimethylsiloxane, the amount is 40%; 2-octanol, the dosage is 20 percent; sulfonated oil, the dosage is 10%; tributyl phosphate, the amount is 10%; soybean glyceride, dosage is 20%.

2. The use method of the defoamer special for candles as described in claim 1, wherein the usage amount in candles is 1-2000 ppm.

3. A candle which is characterized in that the candle is prepared by melting a base wax, adding the defoaming agent of claim 1, and then cooling and molding, wherein the base wax is paraffin wax, vegetable-based wax, animal fat-based wax, or a mixed wax of any two or more of the above.

4. A candle of claim 3 wherein the base wax further comprises one or more of a fragrance, a dye, an ultraviolet absorber, and an antioxidant.