CN105586155A - Grease for plant-based candle and preparation method thereof - Google Patents
Grease for plant-based candle and preparation method thereof Download PDFInfo
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- CN105586155A CN105586155A CN201410635289.4A CN201410635289A CN105586155A CN 105586155 A CN105586155 A CN 105586155A CN 201410635289 A CN201410635289 A CN 201410635289A CN 105586155 A CN105586155 A CN 105586155A
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Abstract
The invention provides grease for plant-based candles. The grease is prepared from a grease raw material, which includes rice bran grease, through transesterification. The full-triglyceride plant-based candle is free of cracking and oil leakage and is anti-frosting, and has excellent demoulding performance.
Description
Technical field
The present invention relates to grease that a kind of plant base candle uses and preparation method thereof.
Background technology
Adhere to the development of petrochemical industry, make its elaboration products paraffin become the important source material source of candle.But petroleum resources have non-renewable, and paraffin easy over-emitting black exhaust of when burning, contaminated environment, andBe detrimental to health. In addition, International Crude Oil goes up day by day in recent years, and paraffin price is also more and more higher,These factors have promoted to have the application of the reproducible vegetable wax of environmental protection in candle.
Vegetable wax mainly contains palm wax, soya wax, Brazil wax, bayberry wax, beeswax etc. BabassuWax originates from carnaubic acid leaf, and it is expensive, is mainly used in the glazing of furniture and leather, only has little amountFor the manufacture of the additive of candle. Bayberry wax obtains by the berry of heating bay tree, in early days for candle systemMake, difficult owing to obtaining, now need not. Vegetable oil source is abundant, and palm wax and soya wax are vegetable waxsPrincipal item. Palm wax can raise by fractionated palm oil, also can prepare by palm oil hydrogenation. GreatlyBeans wax mainly makes by all or part of hydrogenation. Vegetable wax, with paraffin phase ratio, not only has aboundresources,Reproducible advantage, and it has burning without black smoke, the advantage that burning time is long.
The application of vegetable wax in candle at present mainly concentrates on mixed type candle, as US1954659 makesHydrogenated vegetable oil with 51% and 49% paraffin, stearic acid, beeswax and other waxed standby candles. Patent US6214918 candle consists of: the bonding agent of the paraffin of 5-40%, the candle aromatic of 5-10%, 0.25-1%,The soybean oil of 50-95% and the liquid dyes of 1-5%. Although these candles have reduced the consumption of paraffin, paraffinExistence still can cause the problems such as environmental pollution. The candle of US1958462 is by least 20% beeswax and 80%Liquid or hydrogenated vegetable oil preparation, the used in amounts that reduces beeswax will be used saturated vegetable oil completely, butCan cause eventually the candle cracking that becomes fragile. Meanwhile, beeswax is expensive, thereby makes the popularization of this candle poor.The plant oil based candle of US2003017431A1, is made up of sweet three esters and aliphatic acid, and sweet three ester contents are 50-65%,Content of fatty acid is 35-50%, and aliphatic acid at least contains 90% palmitic acid and stearic acid or its mixture conventionally.The fusing point of sweet three esters is 57-63 DEG C, and iodine value is 35-45. The sweet three ester fusing points that use in this candle are very high,Contain perhydrogenate vegetable oil or full saturated vegetable oil, candle prepared by these sweet three esters easily ftractures; And it is hardResin acid material easily makes candle frosting, forms snuff.
Rezaei,K.；Wang,T.；Johnson,L.A.,HydrogenatedvegetableoilsascandleWax.JournaloftheAmericanOilChemists'S DEG C of iety2002,79 (12), in 1241-1247., sayBright pure sweet three ester group candles are also considerably less, because oil impregnate, frosting, cracking etc. easily appear in sweet three ester group candlesProblem. US2007039237 discloses a kind of wax composition of high sweet three ester contents, and this wax is specially adapted to cupThe production of wax. When wax is all made up of sweet three esters, it is 14-20% that the aliphatic acid of sweet three esters consists of C16:0,C18:0 is 20-30%, and C18:1 is 45-60%, by vegetable oil mixt and/or hydrogenated vegetable oil, as greatlySoya-bean oil, palm oil and cottonseed oil composition etc. In its candle preparation process, when the wax of fusing is injected in container,Temperature wax liquid need to be cooled to lower than fusing point 10-15 degree but still higher than its crystallization time, enters one by wax afterwardsStep is cooled to below freezing point, to form candle. Its preparation process condition is comparatively strict, is unfavorable for producing.And C18:1 content is very high in wax, and fusing point is on the low side, when burning, easily form larger wax pond.
Wang,L.；Wang,T.,ChemicalModificationofPartiallyHydrogenatedVegetableOiltoImproveitsFunctionalPropertiesforCandles.JournaloftheAmericanOilChemists'Society2007,84 (12), in 1149-1159, the people such as Wang are by chemistryThe method of modification wishes to address these problems, and they are by vegetable oil epoxidation, ring-opening reaction, ester afterwardsChange, in the fatty acid chain of partially hydrogenated vegetable oil, introduce new functional group. After modification, although fusing point modelEnclose increase, hardness is still lower, by adding perhydrogenate soybean oil, although hardness increases, but under coherencyFall, candle easily ftractures.
Therefore, be badly in need of the plant base candle of the full triglycerides that a kind of effect is more excellent.
Summary of the invention
The first object of the present invention is to obtain the grease that a kind of plant base candle is used, and this plant base candle canAll by Triglycerides; Utilize the plant base candle of the oil and fat preparation described in the present invention to overcome existingThe defect of plant base candle in technology, has overcome existing plant candle and has easily ftractureed as soya wax, palm waxThere is surperficial greasy and the more crisp problem of wax structure. The prepared post wax of grease in the present invention has easily de-Mould, do not ftracture, non-blooming, oil proof feature.
In order to overcome the above problems, the invention discloses a kind of grease that can be used for plant base candle, described oilDoubly, the solid fat content 35 DEG C time is greater than 45% to 1.4-1.8 when the solid fat of fat in the time of 10 DEG C is 35 DEG C; DescribedGrease comprise the glyceride stock through ester exchange reaction, described glyceride stock comprises rice bran fat. Preferably,Described rice bran fat is hydrogenation rice bran fat. Preferred, the iodine value of described hydrogenation rice bran fat is 38-41.In a preferred embodiment of the present invention, described grease is substantially by rice bran fat or rice bran fat and other plantThe composition that oil obtains through ester exchange reaction, when the solid fat of described grease in the time of 10 DEG C is 35 DEG CDoubly, the solid fat content 35 DEG C time is greater than 45% to 1.4-1.8.
A kind of grease that can be used for plant base candle disclosed by the invention, described grease comprises through ester exchangeThe glyceride stock of reaction, the rice bran fat that described glyceride stock comprises hydrogenation, described grease iodine value is 20-45,Preferably 38-41. In preferred embodiment of the present invention, described grease is substantially by rice bran fat or rice bran fatWith the composition that other plant oil obtains through ester exchange reaction, grease iodine value is 20-45, preferably 38-41.
1.4-1.8 when the solid fat of described grease in the time of 10 DEG C is 35 DEG C times, the solid fat content 35 DEG C timeBe greater than 45%.
Glyceride stock as above also comprises other vegetable fat.
Glyceride stock of the present invention comprises rice bran fat and other vegetable fat, the grease that described candle is usedDoubly, the solid fat content 40 DEG C time is greater than 45% to 1.4-1.8 when solid fat in the time of 10 DEG C is 35 DEG C; DescribedGrease comprises the glyceride stock through ester exchange reaction.
In grease as above, the solid fat content 35 DEG C time is preferably greater than 48%, more preferably greater than 50%
Grease for plant base candle as above, the fusing point of described grease is 45-60 DEG C, preferably48-55 DEG C, more preferably 50-54 DEG C.
Candle grease as above, wherein also can comprise emulsifying agent (monoglyceride, DAG, poly-sweetGrease, sorbitan fatty acid ester), paraffin, beeswax, Brazil wax, OPE, micro-A kind of in brilliant wax, candelila wax, rice bran wax, polyol fatty acid ester, bayberry wax, aliphatic acid or itsMeaning combination. These auxiliary materials or composition can better solve cracking, frosting and resist the problems such as greasy.
Plant candle grease as above, in wherein said glyceride stock, the content of rice bran fat is 20%Above, be preferably more than 30%, more preferably more than 40%, more than 50%.
Plant candle grease as above, wherein said glyceride stock is through hydrogenation modification.
The invention also discloses the feature of a kind of plant base candle grease, its aliphatic acid group in the grease described in thisBecome palmitic acid content 10-45%, stearic acid content 20%-60%, unsaturated fatty acid content and saturated fatty acid containThe ratio of amount, below 0.8, is preferably 0.3-0.78, when the solid fat of described grease in the time of 10 DEG C is 35 DEG CDoubly, and solid fat content 35 DEG C time is greater than 45% to 1.4-1.8. Described grease comprises through ester exchange reactionGlyceride stock. In a specific embodiments of the present invention, glyceride stock comprises rice bran fat. In the present inventionA specific embodiments in, glyceride stock is made up of rice bran fat substantially. In a concrete reality of the present inventionExecute in scheme, described grease is obtained through ester exchange reaction by rice bran fat or rice bran fat and other plant oil substantiallyComposition.
The second object of the present invention is openly a kind ofly to can be used for preparing that plant base candle as above usesThe method of grease, described preparation method comprises glyceride stock is carried out to ester exchange, and the grease preparing is existedDoubly, preferably the solid fat content 35 DEG C time is greater than 45% to 1.4-1.8 when solid fat 10 DEG C time is 35 DEG C. Preferably, described glyceride stock is through over hydrogenation.
The 3rd object of the present invention has been to provide the use of a kind of grease as above for plant base candleOn the way.
The 4th object of the present invention is to provide a kind of pure glycerin three ester plant base candles, and it is substantially by as aboveDescribed grease is through becoming, and preferred, plant base candle is by above-mentioned composition.
Detailed description of the invention
The inventor is through extensive and deep research
Technical conceive of the present invention is as follows:
In the present invention, term " contains " or " comprising " to represent that various compositions can be applied to together of the present inventionIn mixture or composition. Therefore, term " mainly by ... composition " and " by ... form " be included in artLanguage " contained " or in " comprising ".
Below describe in detail to various aspects of the present invention:
Glyceride stock
Glyceride stock in the present invention comprises rice bran fat, and wherein said rice bran fat refers to that mao rice bran oil is through de-In the production process of glue, dewaxing, degreasing, decolouring, depickling, deodorization, divide the degreasing process of carrying to obtain through winterizationThe solid phase part arriving, in a specific embodiments of the present invention, the fusing point of the rice bran fat of use is 15-22DEG C, iodine value is 95-115gI2/ 100g, wax content is 0.1-3%, palmitic acid content is 14-22%, tristearinAcid content is 1-3%, and oleic acid content is 35-45%, and linoleic acid content is 29-43%.
Plant base candle glyceride stock described in the present invention, can also contain except rice bran fat other typeGlyceride stock, due to the performance of rice bran fat excellence, while preparing plant base candle after mixing with other glyceride stock,Can give the performance of candle fat excellence. The grease of other type described in the present invention, comprises each PlantsThe grease in source, is preferably soybean oil, palm oil.
The grease of plant base candle
In the detailed description of the invention of of the present invention, in described grease, its aliphatic acid consists of palmitic acid and containsAmount 10-45%, stearic acid content 20%-60%; More excellent, described palmitic acid content is 12-40%, stearic acid containsAmount is 30-50%.
The described grease for plant base candle, wherein glyceride stock comprises rice bran fat, optional, oilFat raw material also comprises the vegetable fat of other kind.
In a specific embodiment of the present invention, described glyceride stock is selected from rice bran fat, the plant obtainingBase candle by the SFC value of 10 DEG C of greases be 35 DEG C SFC value 1.4-1.8 doubly; Described plant base candle is usedGrease is obtained through ester exchange reaction by glyceride stock, the preferred hydrogenation rice bran of glyceride stock fat. The SFC of 35 DEG C is greater than45%, be preferably greater than 50%, more preferably greater than 55%. Fusing point is 45-60 DEG C, preferably 48-55 DEG C, more preferably 50-54DEG C. In the preferred conversion of this detailed description of the invention, described glyceride stock is made up of the rice bran fat of hydrogenation, butDo not get rid of vegetable fat composition in addition. The iodine value of described grease is 20～45, is preferably 38～41.
In a specific embodiment of the present invention, described glyceride stock comprises rice bran fat and other typeThe mixture of vegetable fat, the SFC value that the described grease that obtains is 10 DEG C be 35 DEG C SFC value 1.4-1.8 doubly,The SFC of 35 DEG C is greater than 45%, is preferably greater than 48%, more preferably greater than 50%; Preferred its fusing point is 45-60 DEG C,Preferably 48-55 DEG C, more preferably 50-54 DEG C. Wherein said grease is by glyceride stock process ester exchange reaction. InstituteThe content of the rice bran fat of stating in glyceride stock is more than 20%. The iodine value of described grease is that iodine value is 20～45,Be preferably 38～41.
In preferred detailed description of the invention of the present invention, described glyceride stock comprises rice bran fat and soybean oil.Described rice bran fat and the ratio of soybean oil are greater than 1 ︰ 4.
In preferred detailed description of the invention of the present invention, described glyceride stock comprises rice bran fat and palm oil.Described rice bran fat and palmitic ratio are greater than 1 ︰ 4.
In a specific embodiment of the present invention, in described grease, its aliphatic acid consists of palmitic acid content10-45%, stearic acid content 20%-60%, the ratio of unsaturated fatty acid content and saturated fatty acid content is 0.8Below, be preferably 0.3-0.78,1.4-1.8 when the solid fat of described grease in the time of 10 DEG C is 35 DEG C times, andSolid fat content 35 DEG C time is greater than 45%; Described grease is obtained through ester exchange reaction by glyceride stock.
Described grease obtains referring to that through ester exchange reaction the rich mixture of overall glyceride stock carries out by greaseEster exchange reaction, as the ester exchange reaction of carrying out under chemical method or biological enzyme, obtains the grease that plant candle is used.In the present invention, the performance can promote rich mixture as candle by transesterification process time, otherwise due to oilIn lipoprotein mixture, overall performance is inhomogeneous and occur the bad phenomenon such as frosting.
Grease described in the present invention, wherein the content ratio of unrighted acid and saturated fatty acid be 0.8 withUnder, be preferably 0.3-0.78; Grease the SFC value of 10 DEG C be 35 DEG C SFC value 1.4-1.8 doubly, 35 DEG CSFC be greater than 45%, be preferably greater than 48%, more preferably greater than 50%; Described grease is by glyceride stock process esterExchange reaction obtains. Of the present invention one preferred embodiment in, stearic acid and palmitic acid in described greaseWeight ratio be greater than 0.8, be preferably more than 0.9, be more preferably greater than 1, most preferably be 2-3.2.
Emulsifying agent (monoglyceride, DAG, polyglycerol ester, sorbitan fatty acid ester), paraffin, honeybeeWax, Brazil wax, OPE, microwax, candelila wax, rice bran wax, polyol fatty acidEster, bayberry wax, aliphatic acid etc. are also usually used in, in candle formula, can better changing when adding after these componentsThe performance of kind candle.
Preparation method
The present invention's grease as above, can by the glyceride stock that contains rice bran fat through conventional hydrogenation process,Ester exchange process or fractionation technology are adjusted in described parameter area, and wherein in glyceride stock, the content of rice bran fat is largeIn 20%.
Of the present invention one preferred embodiment in, rice bran fat is carried out to partial hydrogenation, make the oil after hydrogenationFat iodine value is controlled at 20～45, most preferably is 38～41, hydrogenation rice bran fat is carried out to ester exchange reaction, described in obtainingGrease. As the equivalents of this detailed description of the invention, ester exchange and step of hydrogenation can exchange order, preferablyEster exchange after first hydrogenation.
In another detailed description of the invention of the present invention, the hydrogenated oil and fat of hydrogenation rice bran fat and other type will be containedFat mixes, and then carries out ester exchange, the parameter adjustment of the rich mixture obtaining is arrived: rich mixtureThe SFC value of 10 DEG C be 35 DEG C SFC value 1.4-1.8 doubly, the SFC of 35 DEG C is greater than 45%. The iodine value control of greaseBuilt in 20～45, most preferably be 38～41.
In a specific embodiment of the present invention, glyceride stock is carried out to hydrogenation and ester exchange reaction, obtainGrease in aliphatic acid consist of palmitic acid content 10-45%, stearic acid content 20%-60%; More excellent, described inPalmitic acid content be 12-40%, stearic acid content is 30-50%.
In the method, carrying out ester exchange reaction after the hydrogenated vegetable oil of different melting points is mixed makes oilThe candle that fat prepares has better performance.
Summary
The grease that plant base candle of the present invention is used, the SFC value that wherein said grease is 10 DEG C is 35 DEG CDoubly, fusing point is 45-60 DEG C to the 1.4-1.8 of SFC value, preferably 48-55 DEG C, more preferably 50-54 DEG C; Described oilFat is obtained through ester exchange reaction by glyceride stock, and described glyceride stock at least comprises rice bran fat.
Advantage
The plant base candle that the present invention obtains, has the following advantages:
1. complete sweet three ester groups (plant oil based) composition that can realize post wax, is not adding paraffin, honeybee completelyIn the situation of the composition such as wax, single diacylglycerol, there is same performance, have more long without black smoke, burning time,Pollution-free, reproducible advantage, raw material sources are abundant simultaneously, low price;
2. adopt the post wax of these complete sweet three ester groups to there is the easy demoulding, oil-tight, non-blooming, indehiscent advantage;
3. these complete sweet three ester group post wax compositions are the modified product of rice bran fat, and rice bran fat is rice bran oil processIn accessory substance, the range of application of rice bran fat has been expanded in this invention.
As no specific instructions, various raw material of the present invention all can obtain by commercially available; Or according to this areaConventional method prepares. Unless otherwise defined or described herein, all specialties used herein and science are usedThe language meaning familiar with those skilled in the art is identical. In addition any similar to described content or equalDeng method and material all can be applicable in the inventive method.
Other aspects of the present invention are due to disclosure herein, be to those skilled in the art aobvious andEasily see.
In following embodiment of the present invention, the rice bran fat of use adopts that ' Luo Shunian etc. are rich in oryzanolRice bran oil refining method research, food industry technology, the method in 2007,28 (12), 153 ' is prepared intoArrive, the rice bran fat using in this specific embodiment, for hair rice bran oil through coming unstuck, dewaxing, degreasing, decolouring,In the production process of deacid-deodoring, the solid phase part obtaining through degreasing process, its fusing point is 15-22 DEG C, iodineValency is 95-115gI2/ 100g, wax content is 0.1-3%, palmitic acid content is 14-22%, stearic acid contentFor 1-3%, oleic acid content is 35-45%, and linoleic acid content is 29-43%.
Soybean oil is from Shanghai Jiali Food Industry Co., Ltd., and 51 degree palm stearins are from special oil in good(Shanghai) Co., Ltd., Pricat-9910 catalyst (being called for short 9910 below) is hydrogenation catalyst, becomesBe divided into nickel-base catalyst, purchased from German Unichemma company.
The hydrogenated soybean oil product of 50 DEG C using in following examples, the hydrogenated soybean oil product, 52 of 44 DEG CDEG C the hydrogenation product such as hydrogenation rice bran fat prod, the hydrogenation rice bran fat prod that fusing point is 58 DEG C by following methodsPreparation:
(1) use 5 ‰ 9910 catalyst, 180 DEG C of temperature, pressure is greater than and under 2.5Bar condition, carries out hydrogenation,In hydrogenation process, approximately survey iodine value, fusing point every 10min sampling, after iodine value, fusing point reach designated value, stopOnly experiment. Sample is taken out, remove by filter catalyst.
(2) decolouring: add 2.5% carclazyte in sample, stir 25min and carry out under 105 degree vacuum conditionsDecolouring is processed.
(3) deodorization: vacuumizing under logical condition of nitrogen gas, obtain refining hydrogenation product in 240 DEG C of debrominate 2h.
Hydrogenation rice bran fat ester interchanged prod in following examples, palm stearin ester interchanged prod, the hydrogen of 44 DEG CChanging the ester interchanged prods such as soybean oil ester interchanged prod is prepared by following transesterification conditions: raw material is true in 105 DEG CEmpty dehydration 30min, adds 0.4% absolute methanol sodium afterwards, under 105 DEG C of vacuum conditions, reacts 40min.Use afterwards the aqueous citric acid solution cessation reaction of 10% concentration that 18 times of absolute methanol sodium is heavy. Wash with distilled waterTo neutral, finally, in 120 DEG C of vacuum decompression distillation dehydration 1.5h, obtain corresponding ester interchanged prod.
The various dyestuffs that use in specific embodiment are oil-soluble dyes, purchased from the dark Yongfa of Dong Wan city camphorwood headWork raw material business department.
In following embodiment of the present invention, the detection method of employing is as follows:
Fusing point detects: according to the mensuration of ISO6321:2002 animal and plant fat fusing point (sliding point)
Iodine number detects: according to GB/T5532 vegetable and animals oils determination of iodine value
FAC detects: according to the preparation of GB/T17376 animal and plant fat fatty acid methyl ester and GB/T17377The gas chromatography analysis method of animal and plant fat fatty acid methyl ester is measured
Gu fat detects: sample is put into pulsed nuclear magnetic resonance instrument (p-NMR) special glass sample cell,In 60 DEG C of waters bath with thermostatic control, melt 0.5h to eliminate crystallization memory, be transferred in thermostat in 0 DEG C and keep 1h,Then be warming up to and treat testing temperature, after this temperature spot retains 0.5h, use pulsed nuclear magnetic resonance instrument (p-NMR)Detect the solid fat content (SFC) of sample at this temperature.
Embodiment 1:
The preparation of grease: adopt said method to prepare 52 DEG C of hydrogenation rice bran fat prods, and by this hydrogenation rice bran fatProduct adopts above-mentioned ester exchange preparation condition, and these 52 DEG C of hydrogenation rice bran fat are carried out to ester exchange, obtains greaseProduct.
The preparation of candle: this hydrogenation rice bran fat ester interchanged prod, in 75 DEG C of fusings, is added to cudbear, afterPour in mould, be put in room temperature cooling, finally demould obtains post wax.
Embodiment 2:
The preparation of grease: be that the hydrogenated soybean oil product of 50 DEG C and fusing point are the hydrogenation rice bran of 52 DEG C by fusing pointFat prod, in the fusing of 1:9 ratio, obtains oil and fat product by above-mentioned ester exchange preparation technology.
The preparation of candle: this ester interchanged prod, in 75 DEG C of fusings, is added to dyestuff, after pour in mould, putCooling in room temperature, finally demould obtains post wax.
Embodiment 3:
The preparation of grease: be that the hydrogenated soybean oil product of 44 DEG C and fusing point are the hydrogenation rice bran of 58 DEG C by fusing pointFat prod, in the fusing of 1:1 ratio, obtains ester interchanged prod by above-mentioned ester exchange preparation technology.
The preparation of candle: this ester interchanged prod, in 75 DEG C of fusings, is added to dyestuff, after pour in mould, putCooling in room temperature, finally demould obtains post wax.
Embodiment 4:
Oil and fat preparation: the hydrogenation rice bran fat and the ester exchange palm stearin that are 58 DEG C by fusing point melt in 1:1 ratio,According to above-mentioned ester exchange preparation technology, obtain ester interchanged prod.
Candle preparation: this ester interchanged prod, in 75 DEG C of fusings, is added to dyestuff, after pour in mould, be put inRoom temperature is cooling, and finally demould obtains post wax.
Comparative example 1:
Oil and fat preparation: obtaining iodine value according to above-mentioned hydrogenation preparation technology is 46 hydrogenation rice bran fat, and according toAbove-mentioned ester exchange preparation technology, carries out ester exchange modification to it, finally obtains fusing point and be the hydrogenation rice of 48 DEG CChaff fat ester interchanged prod.
Candle preparation: this ester exchange hydrogenation rice bran fat prod, in 70 DEG C of fusings, is added to cudbear, fall afterwardsEnter in mould, be put in room temperature cooling, finally demould obtains post wax.
Comparative example 2
Oil and fat preparation: obtaining iodine value according to above-mentioned hydrogenation preparation technology is 33 hydrogenation rice bran fat, and according toAbove-mentioned ester exchange preparation technology, carries out ester exchange modification to it, finally obtains fusing point and be the hydrogenation rice of 54 DEG CChaff fat ester interchanged prod.
Candle preparation: this hydrogenation rice bran fat ester interchanged prod, in 70 DEG C of fusings, is added to dyestuff, after pour mould intoIn tool, be put in room temperature cooling, finally demould obtains post wax.
Comparative example 3:
Oil and fat preparation: obtaining iodine value according to above-mentioned hydrogenation preparation technology is 15 hydrogenation rice bran fat, and according toAbove-mentioned ester exchange preparation technology, carries out ester exchange modification to it, finally obtains fusing point and be the hydrogenation rice of 58 DEG CChaff fat ester interchanged prod.
The preparation of candle: this hydrogenation rice bran fat ester interchanged prod, in 70 DEG C of fusings, is added to dyestuff, after pour intoIn mould, be put in room temperature cooling, finally demould obtains post wax.
Comparative example 4:
The preparation of grease: obtaining iodine value according to above-mentioned hydrogenation preparation technology is 40 oil with hydrogenated soybean, and pressesAccording to above-mentioned ester exchange preparation technology, it is carried out to ester exchange modification, finally obtain fusing point and be the hydrogenation of 52 DEG CSoybean oil ester interchanged prod.
The preparation of candle: this oil with hydrogenated soybean ester interchanged prod, in 70 DEG C of fusings, is added to dyestuff, after pour intoIn mould, be put in room temperature cooling, finally demould obtains post wax.
Comparative example 5:
The preparation of grease: according to above-mentioned ester exchange process, the palm stearin that is 51 degree by fusing point carries out ester friendshipChange modification, obtain palm stearin ester interchanged prod.
The preparation of candle: this palm stearin ester interchanged prod, in 70 DEG C of fusings, is added to cudbear, fall afterwardsEnter in mould, be put in room temperature cooling, finally demould obtains post wax.
Comparative example 6:
The preparation of grease: according to above-mentioned hydrogenation process, the hydrogenation rice bran fat for preparing fusing point and be 52 DEG C producesProduct.
The preparation of candle: this hydrogenation rice bran fat prod, in 70 DEG C of fusings, is added to cudbear, after pour mould intoIn tool, be put in room temperature cooling, finally demould obtains post wax.
Comparative example 7:
The preparation of grease: be that the oil with hydrogenated soybean of 58 DEG C and 150g fusing point are 51 DEG C by 850g fusing pointPalm stearin mixes, and according to above-mentioned ester exchange preparation technology, obtains ester interchanged prod.
The preparation of candle: this ester interchanged prod, in 70 DEG C of fusings, is added to dyestuff, after pour in mould, putCooling in room temperature, finally demould obtains post wax.
Comparative example 8:
The preparation of grease and candle: the oil with hydrogenated soybean ester interchanged prod and the fusing point that are 44 DEG C by fusing point are 58DEG C hydrogenation rice bran fat ester interchanged prod melt-blended evenly in 1:1 ratio, add dyestuff, after pour mould intoIn, being put in room temperature cooling, finally demould obtains post wax.
Below in conjunction with specific embodiment, further set forth the present invention. Should be understood that these embodiment are only for sayingBright the present invention and being not used in limits the scope of the invention. The experiment side of unreceipted actual conditions in the following exampleMethod, measures according to national standard conventionally. If there is no corresponding national standard, according to general international standard,Normal condition or the condition of advising according to manufacturer are carried out. Unless otherwise indicated, otherwise all partsNumber is weight portion, and all percentages are weight percentage.
Unless otherwise defined or described herein, all specialties used herein and scientific words and art technologyThe familiar meaning of skilled person is identical. In addition any method similar or impartial to described content and materialAll can be applicable in the inventive method.
Embodiment 5: candle performance evaluation
, according to the evaluation criterion of table 1 embodiment and comparative example's candle performance is given a mark by 3 people,Average (rounding up), the mean value of indices score is in table 2.
Table 1 candle evaluation criterion
Table 2 embodiment and comparative example's candle performance.
| The demoulding | Oil impregnate | Hickie (frosting) | Cracking | |
| Embodiment 1 | 0 | 0 | 0 | 0 |
| Embodiment 2 | 0 | 0 | 0 | 0 |
| Embodiment 3 | 0 | 0 | 0 | 0 |
| Embodiment 4 | 0 | 0 | 0 | 0 |
| Comparative example 1 | 0 | 1 | 2 | 2 |
| Comparative example 2 | 0 | 0 | 0 | 2 |
| Comparative example 3 | 0 | 0 | 1 | 3 |
| Comparative example 4 | 1 | 2 | 2 | 1 |
| Comparative example 5 | 2 | 3 | 3 | 1 |
| Comparative example 6 | 0 | 0 | 0 | 2 |
| Comparative example 7 | 1 | 2 | 1 | 1 |
| Comparative example 8 | 0 | 2 | 3 | 0-1 |
Embodiment 6: properties of product detect
Detect iodine value, fusing point, 10 and 40 solid fat, the aliphatic acid of spending of embodiment and comparative example's sampleComposition, result as shown in Table 3 and Table 4.
The aliphatic acid of sweet three esters composition in table 3 embodiment and comparative example.
| C16:0 | C18:0 | C18:1 | C18:1T | C18:2 | C18:2T | |
| Embodiment 1 | 17.30 | 41.8 | 17.65 | 21.01 | 0.00 | 0.24 |
| Embodiment 2 | 16.64 | 40.51 | 18.85 | 21.80 | 0.00 | 0.30 |
| Embodiment 3 | 14.25 | 41.65 | 21.74 | 20.41 | 0.00 | 0.40 |
| Embodiment 4 | 36.21 | 36.91 | 16.86 | 3.02 | 3.21 | 0.61 |
| Comparative example 1 | 17.19 | 27.36 | 24.42 | 28.78 | 0.00 | 0.24 |
| Comparative example 2 | 17.29 | 45.58 | 16.24 | 18.58 | 0.00 | 0.48 |
| Comparative example 3 | 17.42 | 68.83 | 5.48 | 5.99 | 0.00 | 0.09 |
| Comparative example 4 | 10.71 | 28.94 | 29.69 | 28.86 | 0.05 | 0.80 |
| Comparative example 5 | 54.99 | 4.98 | 28.24 | 0.05 | 6.42 | 1.12 |
| Comparative example 6 | 17.25 | 41.02 | 17.65 | 21.01 | 0.00 | 0.24 |
| Comparative example 7 | 17.63 | 37.46 | 23.86 | 18.64 | 1.05 | 0.84 |
| Comparative example 8 | 14.25 | 41.65 | 21.74 | 20.41 | 0.00 | 0.40 |
The physicochemical property of sweet three esters in table 4 embodiment and comparative example.
The ratio of SFC when SFC when the ratio of note: SFC10:SFC35 refers to 10 DEG C and 35 DEG C.
As can be seen from the above table, described plant candle is greater than 45%, one substantially with the SFC of 35 DEG C of greasesAs be greater than 48%, be preferably greater than 50%. Within the scope of grease of the present invention time, the performance of described grease reachesTo best balance, neither cracking is also oil-tight, possesses good demolding performace and chalking resistance energy simultaneously.
Can be found out by above-mentioned data, the candle outward appearance that embodiment 1-4 obtains is good, without hickie and crackingPhenomenon, simultaneously oil-tight, the easily demoulding, is a kind of extraordinary post wax, and obtain in comparative exampleAll there are various different defects in each candle. Comparative example 1-3 uses the ester exchange of hydrogenation rice bran fat to produceThing, but they all exist cracking phenomena, and fusing point is when lower, also has oil impregnate and hickie phenomenon. This be because ofFor the SFC10:SFC35 of these ester exchange offsprings is not between 1.4-1.8, so that its fusing point and embodiment1-3 difference. Comparative example 4-5 (oil with hydrogenated soybean ester interchanged prod and palm stearin ester interchanged prod)There is the fusing point similar to embodiment 1, but be also the scope phase with 1.4-1.8 because of its SFC10:SFC35Poor larger, the candle performance obtaining is also very poor, has asking of the more difficult demoulding, oil impregnate, hickie and cracking simultaneouslyTopic. These presentation of results greases must be controlled SFC10:SFC35 in certain scope, and the candle of preparationDo not possess above-mentioned defect.
Comparative example 6 is candles prepared by the hydrogenated oil and fat before embodiment 1 ester exchange, its iodine value, fusing point andFAC is identical with embodiment or similar, but still has the phenomenon of cracking, this and boths' SFC, particularlySFC10:SFC35 difference causes. Comparative example 7 has identical SFC10:SFC35 value with embodiment 2,Similar iodine value, FAC, but still there is the problem such as frosting and oil impregnate in the candle that they make. This may beBecause do not use rice bran fat in this comparative example, illustrate that hydrogenation rice bran fat giving candle excellent properties sideMask plays an important role. Although comparative example 8 has also used hydrogenation rice bran fat, and its indices alsoSimilar to embodiment 2, still, the performance of candle is also bad, this may be because its use be different estersThe mixture of exchange product, does not do last transesterification process, and in embodiment 3, uses first and mixThe grease of rear ester exchange, its candle performance is just fine, the result shows, grease is carried out to overall transesterificationTo promote plant base candle to be improved effect.
As from the foregoing, only have the ester interchanged prod that uses containing hydrogenated rice bran fat, and its SFC10:SFC35 ratioValue should, between 1.4-1.8, just have good performance by the candle of its making, and be subject to grease iodine value, FAC,The restriction of fusing point etc. is less.
The foregoing is only preferred embodiment of the present invention, not in order to limit essence technology of the present inventionContext, essence technology contents of the present invention is to be broadly defined in the claim scope of application, appointsWhat other people the technology entity or the method that complete, if with the defined complete phase of claim scope of applicationWith, also or a kind of change of equivalence, be all covered by among this claim scope being regarded as.
All documents of mentioning in the present invention are all quoted as a reference in this application, just as each section of documentQuoted separately as a reference. In addition should be understood that after having read foregoing of the present invention, thisThose skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application equallyAppended claims limited range.
Claims (10)
1. a plant candle grease, is characterized in that, described plant candle is consolidating 10 DEG C time with greaseDoubly, the solid fat content 35 DEG C time is greater than 45% to 1.4-1.8 when fat is 35 DEG C, oil for described plant candleFat comprises the glyceride stock through ester exchange reaction, and described glyceride stock comprises rice bran fat, preferred, instituteStating rice bran fat is rice bran fat after hydrogenation.
2. a plant candle grease, is characterized in that, described plant candle with grease comprise throughThe glyceride stock of ester exchange reaction, the rice bran fat that wherein glyceride stock comprises hydrogenation; Oil for described plant candleFat iodine value is 20-45, preferably 38-41.
3. plant base candle grease as claimed in claim 1 or 2, is characterized in that described greaseRaw material also includes other vegetable fat.
4. the plant base candle grease as described in any one in claim 1-3, is characterized in that, described inPlant candle be 45-60 DEG C with the fusing point of grease, preferably 48-55 DEG C, more preferably 50-54 DEG C.
5. the plant base candle grease as described in any one in claim 1-3, is characterized in that, described inGlyceride stock in the weight content of rice bran fat be more than 20%.
6. the plant base candle grease as described in any one in claim 1,3 or 4, is characterized in that,Described plant candle is 20-45 by the iodine value of grease, preferably 38-41.
7. a method of preparing plant base candle grease, is characterized in that, glyceride stock is carried out to hydrogenationAnd ester exchange, the 1.4-1.8 while making the grease that the obtains solid fat in the time of 10 DEG C be 35 DEG C doubly, and 35 DEG C timeSolid fat content be greater than 45%, described glyceride stock comprises the grease of rice bran fat or rice bran fat and other greaseMixture.
8. a plant base candle grease, is characterized in that, its fat in grease for described plant candleAcid consists of palmitic acid content 10-45%, stearic acid content 20%-60%, unsaturated fatty acid content and saturated fatThe ratio of acid content, below 0.8, is preferably 0.3-0.78, described plant candle with grease in the time of 10 DEG CGu 1.4-1.8 when fat is 35 DEG C doubly, and solid fat content 35 DEG C time is greater than 45%; Described plant candle is usedGrease comprises the glyceride stock through ester exchange reaction, and described glyceride stock preferably includes rice bran fat.
9. the grease as described in any one in claim 1-6 or 8 is for the preparation of the purposes of candle.
10. a candle, substantially by composition or bag described in any one in claim 1-6 or 8Containing the grease described in any one in claim 1-6 or 8.
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