CN104817647B - Konjac glucomannan oven glove and production method thereof - Google Patents
Konjac glucomannan oven glove and production method thereof Download PDFInfo
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- CN104817647B CN104817647B CN201510214336.2A CN201510214336A CN104817647B CN 104817647 B CN104817647 B CN 104817647B CN 201510214336 A CN201510214336 A CN 201510214336A CN 104817647 B CN104817647 B CN 104817647B
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Abstract
The invention relates to a konjac glucomannan oven glove and a production method thereof. The production method includes producing konjac glucomannan purifying powder, modifying konjac glucomannan, producing membrane solution and producing the glove. The production method is simple, and the konjac glucomannan has excellent biological activity and rheological properties such as antibacterial property, water resisting property and membrane-forming property, plays a good role in protecting the skin, can prevent the skin from water loss and blistering and can relieve aging. Meanwhile, water resistance, heat insulation property, transparency, tensile strength and the like of the modified konjac glucomannan membrane material can improved remarkably. Therefore, the konjac glucomannan oven glove prepared with the method has the advantages of water resistance, heat insulation, nature, no side effects and the like.
Description
Technical field is the present invention relates to a kind of commodity and preparation method thereof, and in particular to a kind of konjaku glucomannan every
Hot gloves and preparation method thereof.
With the arrival of 21st century, some housewifves must for a long time stay in culinary cuisine to background technology.It is many
It is well known, Chinese Cuisine mainly based on warm-served food, the hand of housewife be susceptible to scald and bubble, hand is injured shows for redness etc.
As.These problems not only have influence on to a certain extent the enthusiasm that housewife cooks, and go down to also result in hand exposure for a long time
Property burn etc. hand disease.Proximity gloves is acted on due to effectively playing isolation temperature and resistance to heat transfer, so as to effectively alleviate hand
Portion's problem, is increasingly becoming focus of concern.Various proximity gloves products are had in the market, but these products are heat-insulated
Performance is not good, expensive raw material price.Therefore, current environmental protection theory and people has the situation of requirements at the higher level to commodity
Under, seek a kind of safe and stable, function admirable, and the pure natural raw material having no toxic side effect making these and facilitate human lives
Proximity gloves have great significance, and konjaku glucomannan heat endurance gel, the heat-insulated raw material exactly sought by us.
Because konjaku glucomannan has the excellent biologically active such as heat endurance and rheological property, skin mistake is prevented from
Water, foaming is alleviated and is scalded, and the heat endurance of konjaku glucomannan is good, anti-scald with heat-insulated, resistant to elevated temperatures feature, easily into
Product, low in raw material price, it has also become one of main natural material of commodity.It is fresh-keeping at present konjak series successfully to have been developed
The multiple product such as film and eye patch.
The patent of Application No. 201180057377.5 " does not use the used in dustless room elastomer rubber hand of vulcanization aid and sulphur
The set " (applying date：2011-09-30）, describe a kind of rubber gloves of elasticity.The contact surface of gloves contact user's hand is in nothing
Viscous state, another side, the face that object is contacted during operation smooths, but this rubber gloves is to moistening with persistent requirement not
Height, therefore or can not solve the problems, such as moistening maintenance in skin.
Patent " PLA the gloves " (applying date of Application No. 201180037913.5：2011-06-22）, describe one
Plant biodegradable disposable glove.The polylactic acid polymer group that elastomeric material is combined with biodegradable plasticizer
The gloves for dividing, but this PLA gloves are higher to material requirements, and cost of manufacture is high, and heat resistance is low, therefore or can not solve
Certainly the problems such as the protection of skin scald.
The content of the invention purpose of the present invention is aiming at the deficiency of existing protective gloves product and manufacturing technology, there is provided one
Konjaku glucomannan proximity gloves and preparation method thereof is planted, konjaku glucomannan proximity gloves is easy to use and can prevent heat from passing
Pass, and comfort level and convenience can be kept, hand skin is had no toxic side effect.
The purpose of the present invention is realized by the following method.
The preparation method of the konjaku glucomannan proximity gloves of the present invention, it is characterised in that operating procedure is as follows：
（1）Prepare konjaku glucomannan purifying powder：In 2～5 L, 65～85 DEG C of deionized water, room temperature is while stirring
5～15 g konjaku powders are added, 1～3h is stood after 25～35 min of stirring, Jing suction filtrations remove insoluble impurities, retain filtrate；
Rotary evaporation filtrate is concentrated, and the ethanol with 85～95% in the filtrate poured into after concentration, is stirred as precipitating reagent when pouring into,
Precipitation is collected, with being placed in after absolute ethanol washing in 25～35 DEG C of air dry oven 4 ~ 6 h are dried, then be placed in 25～35 DEG C very
Empty drying box drying to quality keeps constant, obtains konjaku glucomannan purifying powder.
（2）Konjaku glucomannan it is modified：Pour the distilled water of 50～150 ml, keeping temperature in 250 mL beakers
45～60 DEG C, step is added while stirring（1）Konjaku glucomannan purifying 0.1～1.2g of powder is obtained, 1～2h is stirred；It is cooled to
After 40～60 DEG C, the acetic anhydride of 0.1～1mL, 0.01～1.50g/mL is measured with pipette, dropwise instilled in beaker, continue to stir
Mix, add 0.1～0.2 mL, the concentrated sulfuric acid of 0. 010～038 mol/L to be catalyst, 3～5h of reaction time；Reaction is completed
Afterwards, rotary evaporation concentration of reaction solution, adds ethanol, collects precipitation, is first washed 1～3 time with 85%～95% ethanol, then with anhydrous
Ethanol is washed 1～2 time, until the pH of solution is 6～7；This solution is placed in surface plate, is put in 20～40 DEG C of baking ovens and is dried
The shape that is crushed into powder is taken out after 4～6h, is placed in 20～35 DEG C of vacuum drying chamber and is continued to dry to constant mass, obtained
Modified konjac glucomannan；
（3）Prepare film liquid：Pour the distilled water of 50～100mL, 20～40 DEG C of keeping temperature, side in 250 mL beakers
Stirring side adds step（2）The modified konjac glucomannan for obtaining, the glycerine of 1～5mL is separately added into after it is completely dissolved with
And the monoglyceride of 0.01～1g, mix, and the pH of mixed liquor is adjusted to into 7.5 with the sodium bicarbonate solution of 1mol/L, stir
12～18h is stood afterwards, makes film liquid, it is standby；
（4）Prepare gloves：Take step（3）6～8mL of film liquid pour in glove mould, by the film liquid in mould together with mould
Tool is placed in drying box, and 2～4h is dried under conditions of 58～60 DEG C, is cooled to room temperature, gloves made by taking-up.
The glycerine, acetic anhydride, the concentrated sulfuric acid, ethanol are liquid；Konjaku glucomannan, sodium acid carbonate are pressed powder；It is single
Sweet fat is solid.
A kind of preparation method of konjaku glucomannan proximity gloves of the present invention is simple, and wherein konjaku glucomannan has excellent
Good biologically active and rheological property, such as antibiotic property, water-resisting property and film forming, there is good protective effect to skin, can prevent
Only skin dehydration, bubbles and can alleviate aging problem.Simultaneously through modified konjac glncomanan film material, its resistance to water,
The performances such as thermal insulation, transparency, tensile strength can be significantly improved.Therefore, the evil spirit prepared with the method for the present invention
Taro Glucomannan proximity gloves has the advantages that water-fast, heat-insulated and natural has no side effect.
The konjaku glucomannan proximity gloves of the present invention and ordinary glove performance test comparing result
It is excellent with properties such as konjaku glucomannan proximity gloves thermal insulations of the invention through test.
Specific embodiment discloses konjaku glucomannan proximity gloves of the present invention and preparation method thereof in order to abundant, below
It is illustrated with reference to example.
Embodiment 1：A kind of preparation method of konjaku glucomannan proximity gloves, comprises the following steps：
（1）Prepare konjaku glucomannan purifying powder：In 2 L, 75 DEG C of deionized water, room temperature adds while stirring 10g
Konjaku powder, stands 2.5h after stirring 25min, Jing suction filtrations remove insoluble impurities, retain filtrate；Rotary evaporation filtrate is dense by its
Contracting, as precipitating reagent, in the filtrate poured into after concentration, precipitation is collected in bevelling stirring in side to the ethanol with 95%, uses absolute ethanol washing
It is placed in afterwards in 30 DEG C of air dry oven and is dried 6 h, then be placed in 35 DEG C of vacuum drying chamber dryings to constant mass, that is, is purified
Powder；
（2）Konjaku glucomannan it is modified：Pour the distilled water of 100 mL in 250 mL beakers, 55 DEG C of keeping temperature,
Step is added while stirring（1）The konjaku glucomannan purifying powder 1.08g of acquisition, stirs 2h；After being cooled to 45 DEG C, pipette is used
The acetic anhydride of 1mL, 1.08g/mL is measured, is dropwise instilled in beaker, continue to stir, add 0.15mL, 0. 035 mol/L
The concentrated sulfuric acid is catalyst, reaction time 3h；After the completion of reaction, rotary evaporation concentration of reaction solution is precipitating reagent with ethanol, takes precipitation
Thing is first washed 3 times with 95% ethanol, then with absolute ethanol washing 2 times, until the pH of the aqueous solution is 7；This solution is placed in into surface
In ware, it is put in 35 DEG C of baking ovens and is dried after 6h, take out dry sediment, be crushed into powder shape, the vacuum for being placed in 35 DEG C is done
Continue to dry to constant mass in dry case；
（3）Prepare film liquid：Pour the distilled water of 100 mL in 250 mL beakers, 40 DEG C of keeping temperature adds while stirring
Enter step（2）The modified konjac glucomannan for obtaining, be separately added into after it is completely dissolved 5mL glycerine and 1g list it is sweet
Fat, mixes, and the pH of mixed liquor is adjusted to into 7.5 with the sodium bicarbonate solution of 1mol/L, and 12h is stood after stirring, and makes film
Liquid, it is standby；
（4）Prepare gloves：Take step（3）Film liquid 6mL pour in the mould of gloves, by the film liquid in mould together with mould
It is placed in drying box, under conditions of 60 DEG C 2h is dried, is cooled to room temperature, gloves made by taking-up.
Directly dress when the konjaku glucomannan proximity gloves of the present invention is used.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (3)
1. a kind of preparation method of konjaku glucomannan proximity gloves, it is characterised in that operating procedure is as follows：
（1）Prepare konjaku glucomannan purifying powder：In 2～5 L, 65～85 DEG C of deionized water, room temperature is added while stirring
5～15 g konjaku powders, stand 1～3h after 25～35 min of stirring, Jing suction filtrations remove insoluble impurities, retain filtrate；Rotation
Evaporation filtrate is concentrated, and the ethanol with 85～95% in the filtrate poured into after concentration, is stirred as precipitating reagent when pouring into, is collected
Precipitate, with being placed in after absolute ethanol washing in 25～35 DEG C of air dry oven 4 ~ 6 h are dried, then be placed in 25～35 DEG C of vacuum and do
Dry case drying to quality keeps constant, obtains konjaku glucomannan purifying powder；
（2）Konjaku glucomannan it is modified：Pour the distilled water of 50～150 mL in 250 mL beakers, keeping temperature 45～
60 DEG C, step is added while stirring（1）Konjaku glucomannan purifying 0.1～1.2g of powder is obtained, 1～2h is stirred；It is cooled to 40～
After 60 DEG C, the acetic anhydride of 0.1～1mL, 0.01～1.50g/mL is measured with pipette, dropwise instilled in beaker, continue to stir, plus
The concentrated sulfuric acid for entering 0.1～0.2 mL, 0. 010～0.038 mol/L is catalyst, 3～5h of reaction time；After the completion of reaction,
Rotary evaporation concentration of reaction solution, adds ethanol, collects precipitation, is first washed 1～3 time with 85%～95% ethanol, then uses anhydrous second
Alcohol is washed 1～2 time, until the pH of solution is 6～7；This solution is placed in surface plate, is put in 20～40 DEG C of baking ovens and is dried 4
The shape that is crushed into powder is taken out after～6h, is placed in 20～35 DEG C of vacuum drying chamber and is continued to dry to constant mass, changed
Property konjaku glucomannan；
（3）Prepare film liquid：Pour the distilled water of 50～100mL, 20～40 DEG C of keeping temperature, side stirring in 250 mL beakers
Side adds step（2）The modified konjac glucomannan for obtaining, be separately added into after it is completely dissolved 1～5mL glycerine and
The monoglyceride of 0.01～1g, mixes, and the pH of mixed liquor is adjusted to into 7.5 with the sodium bicarbonate solution of 1mol/L, after stirring
12～18h is stood, film liquid is made, it is standby；
（4）Prepare gloves：Take step（3）6～8mL of film liquid pour in glove mould, the film liquid in mould is put together with mould
In drying box, 2～4h is dried under conditions of 58～60 DEG C, is cooled to room temperature, gloves made by taking-up.
2. a kind of preparation method of konjaku glucomannan proximity gloves according to claim 1, it is characterised in that the system
Standby film liquid：Pour the distilled water of 100 mL in 250 mL beakers, 40 DEG C of keeping temperature adds while stirring modified konjaku Portugal
Sweet glycan, is separately added into the glycerine of 5mL and the monoglyceride of 1g after it is completely dissolved, and mixes, and with the bicarbonate of 1mol/L
The pH of mixed liquor is adjusted to 7.5 by sodium solution, and 12h is stood after stirring.
3. the konjaku glucomannan proximity gloves that prepared by the method by described in claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510214336.2A CN104817647B (en) | 2015-04-30 | 2015-04-30 | Konjac glucomannan oven glove and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510214336.2A CN104817647B (en) | 2015-04-30 | 2015-04-30 | Konjac glucomannan oven glove and production method thereof |
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| Publication Number | Publication Date |
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| CN104817647A CN104817647A (en) | 2015-08-05 |
| CN104817647B true CN104817647B (en) | 2017-05-10 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105175798A (en) * | 2015-10-29 | 2015-12-23 | 福建农林大学 | Disposable outdoor multipurpose glove and preparation method thereof |
| BR102015031933B1 (en) * | 2015-12-18 | 2021-05-25 | Universidade Estadual De Campinas - Unicamp | process for obtaining asymmetric membranes, membranes thus obtained and use |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020019447A1 (en) * | 2000-07-03 | 2002-02-14 | Renn Donald Walter | Physical forms of clarified hydrocolloids of undiminished properties and method of producing same |
| CN102241787A (en) * | 2010-05-10 | 2011-11-16 | 辽宁诺康医药有限公司 | Method for preparing glucomannan acetate |
| CN101831001B (en) * | 2010-05-19 | 2011-11-23 | 西南科技大学 | Method for preparing konjak glucomannan acetate thermoplastic material |
| CN102492335B (en) * | 2011-12-21 | 2013-06-05 | 福建农林大学 | Disposable sweat-absorbing antibacterial glove and prepetition method thereof |
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Granted publication date: 20170510 Termination date: 20200430 |