CN1143649C - Electric heating thermos bottle - Google Patents
Electric heating thermos bottle Download PDFInfo
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- CN1143649C CN1143649C CNB011117354A CN01111735A CN1143649C CN 1143649 C CN1143649 C CN 1143649C CN B011117354 A CNB011117354 A CN B011117354A CN 01111735 A CN01111735 A CN 01111735A CN 1143649 C CN1143649 C CN 1143649C
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Abstract
The invention relates to an electric thermo pot provided with a coating layer formed on the inner surface of the vessel containing fluororesin or the like. Electric thermo pot of the present invention is capable of improving the adhesive ability of the coating and the printing ability of the marker part on the coating, and to modifying the taste and water quality of the liquid, such as water and boiled water, kept in the container. In the electric thermo pot, the inner surface of the container is provided with coating of fluororesin with the thickness of 30 um or less and the silicon oil component contained in the coating 2 is 2 wt.% or less. There is no separation between a layer of fluororesin and a layer of non fluororesin and thereby the degradation of the adhesion of the coating can be controlled. At least 20 wt.% carbon is contained in the fluororesin coating, thereby the aggregation of a bleed layer to be formed after baking of the fluororesin coating is and the generation of the pat mark is eliminated as the result. Furthermore, a film containing a charcoal powder component or a substance which changes a liquid to be alkaline is formed on the internal surface (liquid contact surface) of the container. The charcoal powder radiates infrared rays and releases a dissolved minor constituent or the alkaline substance provides alkaline component, so that the taste and water quality of the liquid kept in the container can be improved.
Description
The present invention relates to a kind of electric hot water bottle, inner surface of container of its dress liquid has the film that is made of fluororesin etc., and the sign part that shows waterline etc. is arranged on the diaphragm.
The general coating that contains fluororesin of using had been coated with one deck in the containers such as electric hot water bottle of Shi Yonging and electric cooker in the past, but when coating contains the coating of fluororesin, as sneak into silicone oil, coating can occur has advanced, influence outward appearance, therefore, must be noted that not allow silicones or silicone oil sneak into.
In addition, when in the container of electric hot water bottle, forming film, or on film, form when indicating part in the past, in coating, use silicone oil sometimes as defoamer by printing, but because the silicone oil amount is very little, to the adaptation not influence basically of film.
In electric cooker, form the sign part by clapping seal (pat printing) on the film that contains fluororesin in container about the thick 10-40 μ m of spraying formation, but on indicating partly, formed the thick fluoropolymer resin layer of 30-60 μ m with methods such as powder coatings again, therefore do not had the problem of glue trace.
Yet,, exist and occur the problem that glue trace, adhesiveness, abrasion performance descend on the film if what form in the electric hot water bottle container is to become sign portion by the bat impression of using silicon rubber on the film film of main component with fluororesin and polyethersulfone resin.
This is because printing performance when clapping seal and demolding performace etc. and be adjusted to optimum condition have added silicone oil such as dimethyl silicone polymer in the main component silicon rubber of seal glue (pat).Therefore, when indicating part by clapping impression one-tenth, above-mentioned silicone oil is attached on the film, and the fluororesin in the film is ostracised, and the fluororesin aggegation is clapped the seal place and the glue trace can be occurred.In addition, clap the adhesiveness and the abrasion performance decline of the film at seal place.
In the past, as mentioned above, forming in the electric hot water bottle container with the fluororesin was the film of main component, mainly was for preventing that dirts such as incrustation scale from adhering to, but made the taste variation of the liquid such as water, boiling water, beverage of adding sometimes.Recently, for the problem of this taste variation, by selecting optimal material and optimal process condition for use, what also have has reached the degree that does not allow the people extremely take notice of.
Yet, even through improved like this electric hot water bottle, adding the taste of liquid wherein, the improvement of water quality perhaps with the improvement of the performance of the taste of the beverages such as tea of fluid bubble such as boiling water, the Stewed Dish when cooking with liquid etc., still has and need improve part.
For this reason, first purpose of the present invention is, improves the adhesiveness of the film in the electric hot water bottle container, and, even, can not stay the glue trace at epithelium arsis seal yet.
Second purpose of the present invention be, improves the taste and the water quality of liquid such as the water of putting into container, boiling water, beverage, actively improves the taste with beverages such as tea that liquid steeped such as boiling water, the performance of the cooking of carrying out with liquid.
For reaching above-mentioned first purpose, in the present invention, in container, form the film that at least by fluororesin constitute of thickness below 30 μ m, make in the film silicone oil composition below 2 weight %, like this, can prevent that the aggegation of fluororesin is grown up in the film, the adhesiveness and the abrasion performance that suppress film descend.
In the present invention, be preferably in the part formation sign part of above-mentioned film.Like this, can form the good sign part of adhesiveness.
In the present invention, aforementioned sign part is made up of fluororesin, polyethersulfone resin and pigment at least, and the silicone oil composition in the film of formation sign part is below 2 weight %.Can suppress like this to descend by clapping the adhesiveness of printing the film that forms the sign part.
In addition, in the present invention, on above-mentioned film, form second tunic that constitutes by polyethersulfone resin in non-sign portion at least.Can suppress the fluororesin aggegation like this, prevent that silicone oil from directly contacting, improve the adhesiveness of film, and can prevent that the glue trace from appearring in non-sign portion.
In the present invention, form the fluororesin film contain fluororesin, pigment and adhesive ingredients at least, account for more than 20% of film weight as the carbon element pigment of above-mentioned pigment at vessel surface, on above-mentioned film by forming printed layers with printing the glue transfer printing.By such composition, when the roasting fluorine coating, can suppress to be coated with the flowability of film component, thereby eliminate the glue trace.
In addition, in the present invention, above-mentioned seal glue preferably is made of the material that contains silicon rubber at least.
Like this, by in containing the film of fluororesin, adding the carbon element pigment more than the 20 weight %, because fusion and the carbon element pigment that self is difficult to flow fully disperse in film during roasting, the flowability of resinous principle is suppressed in the films such as fluororesin, the fluororesin aggegation that film is the most surperficial etc. tails off, the flatness on surface is guaranteed, and can be eliminated the glue trace.
Particularly carbon element pigment and other pigment ratios, proportion is little, particle diameter is also little, so add weight when identical number of particles many, improve so suppress the effect of film component flowability, can correspondingly reduce the addition of pigment like this.
If use the seal glue contain silicon rubber, then the transfer printing of printing ink is good, and the durability of seal glue also improves, thereby the product of production good appearance efficiently.
Secondly, for reaching above-mentioned second purpose, in the present invention, formation contains the film of charcoal powder composition on the electric hot water bottle inner surface of container and face that liquid contact.Like this, because contained charcoal powder can be launched infrared ray in the inner surface film, pass through ultra-red ray effect, water quality improves, and, mineral matters such as contained calcium and magnesium can improve the taste of the beverage of interior water of use container or boiling water from the stripping of the direct contact portion trace of the liquid in above-mentioned film and the said vesse in the charcoal powder.Contained these are the compound of main component with alkali earth metals such as calcium, magnesium and are the stripping of the compound of main component with alkali metals such as potassium, sodium in the charcoal powder, make the proterties of water shift to an alkaline side, when using beverages such as this bubble tea or black tea, coffee, its extracting ability increases, and delicious beverage can be provided.Water with this alcaliotropism skew boils, and can shorten the time of boiling, improve cooking effect.
In electric hot water bottle, because the temperature of inner liquid (for example water) can rise to boiling point, therefore, the film that contacts with this liquid also can rise to same high temperature, and thus, the infrared ray of launching increases, and also stripping is more to make liquid shift to the composition of an alkaline side.And in the situation of electric hot water bottle, owing to make liquid keep high temperature for a long time, this effect is just bigger.
In the present invention, the content of above-mentioned charcoal powder accounts for the 0.5-50% of film weight.
The addition of charcoal powder is as surpassing 0.5% of film weight, then can occur the effect of water correction owing to the stripping of micro constitutent in the infrared ray emission effect of this charcoal powder and the charcoal powder.On the other hand, surpass 50% of film weight as the addition of charcoal powder, then adhesiveness and the corrosion resistance with base material reduces, and the too much stripping of the impurity in the charcoal powder, when the liquid in this electric hot water bottle is used for beverage, also can make the taste variation of beverage sometimes.Therefore, it is better that the content of charcoal powder accounts for the scope of 0.5-50 weight % of film.
Can improve water quality with charcoal thus, and can suppress adhesiveness and corrosion proof reduction, and can suppress sneaking into of impurity and cause the taste variation.
The particle diameter of above-mentioned in the present invention charcoal powder is below the 10 μ m.
1 layer thickness at the film that forms on the inner surface of container is about 10-20 μ m.The particle diameter at this moment as above-mentioned charcoal powder end surpasses 10 μ m, and then the part of particle uprises from the probability that film exposes.The main component of charcoal powder is a carbon, and electric conductivity is very good, so the corrosion resistance of film descends, the possibility that the charcoal powder appears on the interface with base material increases, and thus, the adhesiveness of film and base material also reduces, and the concavo-convex change on film surface is big, thereby the soil resistance on film surface is descended.Therefore, the particle diameter of above-mentioned charcoal powder is being good less than 10 μ m.
Can obtain the electric hot water bottle that the soil resistance on corrosion resistance and good adhesion and film surface does not also reduce thus.
In the present invention, contained impurity component, particularly ferrous components in the above-mentioned charcoal powder are controlled at below the 0.1 weight %.
When charcoal is processed into powder, be that the hammer of main component waits and pulverizes, have this ferrous components of trace to sneak into during pulverizing in order to iron.Its mixed volume then can become the major reason of beverage taste variation in the reduction of film corrosion resistance, the container as surpassing 0.1 weight % of charcoal powder.Therefore, the mixed volume of the ferrous components in the above-mentioned charcoal powder is being good below the 0.1 weight %.
Can obtain the corrosion resistance of film and the electric hot water bottle that taste can not descend thus.
In the present invention, be preferably in the carbon element pigment of interpolation 1 weight % to end in the above-mentioned film.
In film, add the carbon element pigment more than the 1 weight %, can guarantee the infrared ray emission effect of film, need not to add too much charcoal powder, also more favourable on cost, in addition, the sneaking into also of too much impurity component that is caused by the wood ash powder can be inhibited, thereby can suppress the adhesiveness and the corrosion proof reduction of film, also can suppress beverage taste variation in the container.
In the present invention, as above-mentioned charcoal powder, be good with the whitewood's carbon powder that uses high-quality.
The charcoal that high quality white charcoal and oak black wood charcoal etc. are general compares, and alkali metals such as sodium, potassium are many, improve the water quality of the liquid of being contained in the container so make pH shift to an alkaline side easily.In 400-700 ℃ of charing, and the high quality white charcoal is in 1100-1300 ℃ high temperature carbonization, so can make the impurity content of deteriorating water quality less as the oak black wood charcoal of general charcoal.Therefore, more favourable with use high quality white charcoal powder in the charcoal powder.
Thus, can improve the effect of improving of taste, and suppress the taste variation that causes by impurity.
In the present invention, in above-mentioned film, add fluororesin.
Add inorganic constituents such as charcoal powder and carbon element pigment in film, can improve the hydrophily of film itself, the result adheres to dirt easily.Therefore, make and contain the fluororesin composition in the film, make film have hydrophobicity, can improve the tack of dirt.
In the present invention, also add the micro-capsule of hollow in the film on the liquid heating surface of said vesse.
Usually with the electric hot water bottle heating liquid time, because the generation of water vapour bubble and break and can sound on the liquid heating surface, but in the film on heating surface, the inorganic constituents ratio as charcoal powder and carbon element pigment increases, it is loud that the sound that sends becomes easily, and the change of tune promptly to boil water is big.Therefore add the micro-capsule of hollow in the film on heating surface, can suppress the acoustical vibration of generation, it is big to suppress the change of tune to boil water.
In the present invention, the film that forms at the contact liquid level place of electric hot water bottle inner surface of container contains the material that can make liquid become alkalescence.Thus, make the boiling with insulating process in contact with above-mentioned film liquid such as boiling water pH with compared originally, shift to an alkaline side.Usually the boiling water of alcaliotropism skew, as bunch diminishing of its molecule group, boiling water such when making tea can soak into tealeaves inside well, and the result makes the extracting of tea better.Too, because boiling water can soak into the thing that boils better, the time of boiling shortens when boiling etc., again because the time of boiling shortens, and the stripping of nutritional labeling also reduces, the performance that boils is improved.
In the present invention, particularly, use alkaline matter as making aforesaid liquid shift to the material of alkalescence.Thus, owing to the alkaline matter that is scattered in the film contacts with institute's holding liquid in the container, the alkaline matter stripping, thus the liquid alcaliotropism is changed.The degree that alcaliotropism changes can be by adjusting the incorporation and the dispersity of film neutral and alkali material, and the basicity of alkaline matter itself and change arbitrarily.
In the present invention, particularly, use magnesia as above-mentioned alkaline matter.After liquid such as magnesia and boiling water contact, can micro-stripping, make liquid slightly alcaliotropism change.Because magnesia can obtain in highly purified crystallization,, be suitable for beverage most so the influence that the taste that is caused by impurity descends does not have basically.In addition, because its meltage once is few, so a small amount of the interpolation just can supply stripping over a long time.
Fig. 1 is the profile of the electric hot water bottle in the embodiment of the invention 1.
Fig. 2 is the cut-away section stereogram of the container of the electric hot water bottle among Fig. 1.
Fig. 3 is near the profile of waterline of the electric hot water bottle among Fig. 1.
Sign partly the fragmentary cross-sectional view of Fig. 4 for forming on the film in the container of the electric hot water bottle among the embodiment 2.
Fig. 5 is near the isometric front view of waterline of the electric hot water bottle among the embodiment 3.
(a) figure when the glue trace occurring,
(b) figure when the glue trace not occurring.
Followingly embodiments of the invention are illustrated with reference to accompanying drawing.
Embodiment 1
Fig. 1 is the profile of the electric hot water bottle in the embodiment of the invention 1, and Fig. 2 is the cut-away section stereogram of container, and Fig. 3 is near the container profile the waterline.Among Fig. 1, the 1st, shell has bottom tube-like container 2 to be accommodated in this shell 1.The side of container 2 is printed on the roughly waterline of scale (sign portion) 3 of expression confluent.Heater 3 forms integral body with the downside of container 2.Here, about 140 square centimeters of the heating part area of heater 4, the input power of heater is 1000W.Film 5 is arranged on the inner surface of container 2, the loam cake 6 of covering container 2 is arranged above.The temperature sensor 7 of measuring fluid temperature is contained in the downside of container 2, and this temperature sensor 7 links with temperature control equipment 8, the temperature of control boiling water.Also have the hot water apparatus of going out, press out hot water button 9, by the dynamics of pushing, can change the revolution of the electrodynamic pump 11 that links to each other with the liquid outlet 10 of container 2, by hot-water outlet pipe 12, liquid is discharged from discharge opening 13.
In said structure, film 5 forms in order to following method: will be sprayed into thickness 25 μ m by the coating that fluororesin (hexafluoropropylene (HFP)/tetrafluoroethylene (TFE) copolymer resins), polyethersulfone resin, pigment, solvent (N-N-methyl-2-2-pyrrolidone N-etc.) are formed, in 130 ℃ of dryings after 20 minutes, in 340 ℃ of roastings 20 minutes.
Sign portion 3 ties up in the forming process of film 5, after spraying and drying, use the printing ink of forming by fluororesin 5 weight %, polyethersulfone resin 12.5 weight %, pigment (titanium dioxide etc.) 45 weight %, auxiliary agent (defoamer etc.) 0.5 weight %, solvent (N-N-methyl-2-2-pyrrolidone N-etc.) 37 weight %, through clapping the predetermined position that is printed on film 5, then, roasting simultaneously and forming in the roasting process of film 5.
As clapping the used seal glue of forming by silicon rubber of India and China, the few seal glue of use silicone oil composition.
To use the electric hot water bottle of the container 2 that makes by said method as No. 1 sample.The container 2 of the seal glue that the silicone oil component content do not wait has been used in making, and makes electric hot water bottle with this container 2, by silicone oil component content in the used seal glue what, successively electric hot water bottle is designated as the 2-5 sample from less to more.
The film 5 that forms in the container 2 of the electric hot water bottle of the 1-5 sample of making like this with following method evaluation.
1. ocular estimate ... with the naked eye estimate the outward appearance of clapping the seal part.
2. adhesiveness ... behind water boil, make container 2 inner dry.With cellophane tape carry out disbonded test thereafter.Peel off the required number of times evaluation of boiling with causing.
3. abrasion performance ... on nylon bristle brush, load 500g weight and carry out friction test, estimate with making stainless steel billet expose required number of times.
Analyze each electric hot water bottle and clap the amount of contained silicone oil composition in the film 5 of seal part.Evaluation result and analysis result are shown in Table 1.
Table 1
| No. | Silicone oil composition (%) | Outward appearance | Adhesiveness | Abrasion performance |
| Cause and peel off desired times | Cause and expose desired times | |||
| 1 | 0.9 | No problem | 4000 times | 650 |
| 2 | 0.3 | No problem | 5000 times | 900 times |
| 3 | 1.8 | No problem | 3500 times | 550 times |
| 4 | 2.7 | The glue trace is arranged | 1000 times | 200 |
| 5 | 5.2 | The glue trace is arranged | 500 times | 100 times |
As shown in table 1,1,2 and No. 3 sample of contained silicone oil composition below 2 weight % do not seen the glue trace in the bat seal part film, do not have special problem in appearance.Adhesiveness and abrasion performance are also good.
Particularly 1 and No. 2 sample of silicone oil composition below 1 weight % shows very good adhesiveness and abrasion performance.
On the other hand, 4 and No. 5 samples of contained silicone oil more than 2 weight % have obvious glue trace in the bat seal part film, in appearance existing problems.
Aspect adhesiveness and abrasion performance, compare with the 1-3 sample, also obviously relatively poor, existing problems.
Like this, silicone oil in the film is controlled at below the 2 weight %, can guarantees outward appearance grade and good adhesiveness and abrasion performance.
In an embodiment, the silicone oil composition is that example is illustrated in the seal part film to clap, but is not limited to clap the seal part, also is kindred circumstances for other parts and the sign portion of film.
Though the thickness of film 5 is made as 25 μ m, there is no particular restriction to it, as long as all can below 30 μ m.This be for reduce thickness when 30 μ m are above in the film contained silicone oil composition infiltrate in the film and produce and clap the seal defective.
On the other hand, as sign portion 3, employing is clapped seal and is formed in an embodiment, but also can and use stamping method, forms the sign portion of convex or spill.
Fig. 4 represents the fragmentary cross-sectional view of the sign portion that forms on the film in the container of the electric hot water bottle among the embodiment 2, and second tunic 14 is arranged on film 5 and sign portion 3.
Shown in embodiment 1, the coating that spraying is made up of fluororesin (hexafluoropropylene (HFP)/tetrafluoroethylene (TFE) copolymer resins), polyethersulfone resin, pigment and solvent (N-N-methyl-2-2-pyrrolidone N-etc.), the printing ink of being made up of fluororesin, polyethersulfone resin, pigment and auxiliary agent etc. is used in dry back, by clapping after impression becomes sign portion, the coating that spraying is made up of polyethersulfone resin and solvent (N-N-methyl-2-2-pyrrolidone N-etc.), form the second thick tunic 14 of 2 μ m, at last in 320 ℃ of roastings 20 minutes.
Seal glue system uses 4 and No. 5 many samples of silicone oil composition used among the embodiment 1.
The electric hot water bottle of 6 and No. 7 samples of Zhi Zaoing is estimated by the method identical with embodiment 1 like this.The result is as shown in table 2.
Table 2
| No. | Silicone oil composition (%) | Outward appearance | Adhesiveness | Abrasion performance |
| Cause and peel off desired times | Cause and expose desired times | |||
| 6 | 2.7 | No problem | 3400 times | 560 times |
| 7 | 5.2 | No problem | 3030 times | 510 times |
As shown in table 2, even use 4 and No. 5 of occurring the glue trace among the embodiment 1 to clap the printed material material, the glue trace do not occur, and adhesiveness and abrasion performance are not seen problem yet yet.
Like this, owing to formed second tunic 14, can not produce the glue trace, and can obtain good adhesiveness and abrasion performance at bat seal position.
In an embodiment, though also on sign portion 3, formed second tunic,, there is not special problem even be not formed on the sign portion 3 yet.
Form after spray though second tunic 14 becomes sign portion 3 in bat impression, in contrast, form second tunic, 14 backs in spraying and become sign portion 3, also can obtain effect same by bat impression.
On the other hand,, be not limited to this, in the scope of 0.5-5 μ m, all can though the thickness of second tunic 14 is 2 μ m.
This is because can not obtain the effect of covering the glue trace during less than 0.5 μ m, and greater than 5 μ m, then being used to form N-N-methyl-2-2-pyrrolidone N-contained in the printing ink of sign portion can ooze out from sign portion 3.
Embodiment 3
In structure shown in Figure 1, film 5 usefulness solvent based coatings form, this coating contain solid constituent as the polyethersulfone resin of adhesive and fluororesin, pigment.Here, used fluororesin is the hexafluoropropylene (HFP)/tetrafluoroethylene (TFE) copolymer resins.Addition as the carbon element of pigment is as shown in table 3.Here, the content that keeps adhesive and fluororesin changes the addition of carbon element than constant, and it is proportional correspondingly to adjust containing of carbon element pigment in addition, but the pigment total content remains unchanged.
On the inner surface of container 2, spray sandblast and make it become coarse, at coating shown in its surface spraying table 3, and dry.With seal glue transfer printing mode print waterline 3 thereafter.Printing ink used herein is to be scattered in printing ink to scale with forming in the solvent with polyethersulfone resin contained in the aforementioned coating, fluororesin and as the titanium dioxide of Chinese white.The transfer printing of printing ink is that the seal glue of main component carries out in order to silicon rubber.Its outward appearance is observed in the set point of temperature roasting in printing waterline 3 backs.
Table 3
| No. | Carbon content in the coating | Have or not the glue trace in appearance |
| 8 | 5 weight % | × |
| 9 | 10 weight % | △ |
| 10 | 20 weight % | ○ |
| 11 | 30 weight % | ○ |
In sample shown in the table 3, observe the glue trace and go out present condition, with zero～* represent.Here, zero expression " outward appearance no problem ", △ represents " slightly seeing the glue trace ", * expression " the glue trace is obvious ".These results are shown in table 3 in the lump.Near the state that has or not the glue trace waterline shown in Fig. 53.Here, symbol 15 expression glue traces.
Can obviously find out by these results, when carbon content when 20 weight % are above, problem of appearance does not exist.
In the present embodiment, be illustrated as fluororesin with the hexafluoropropylene (HFP)/tetrafluoroethylene (TFE) copolymer resins, but be not limited to this, use TFE (PTFE), tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resins (PFA) to wait other fluororesin also can obtain same effect.
In addition, only the example of content below 30 weight % with carbon element is illustrated, and certainly, the present invention is not limited to these examples, can increase addition in the scope of the fundamental characteristics such as adhesiveness that influence film.
In addition, the situation when being 1 layer with regard to fluororesin film is described, but but structure be when comprising the multilayer of prime coat etc. or on printed layers, form when not reducing the face coat of printing identification, also can obtain effect same.
As the pattern of printed layers, be that example is described with lines shown in Figure 5, the present invention is not limited to this certainly, and necessary patterns such as printing word, symbol, scale are also no problem.
In the present embodiment, with the electric hot water bottle is that example is described, certainly the present invention is not limited to this, the electric cooker tool that has fluororesin film for electric cooker, electric hot plate, IH cooking device with pot, roaster, bread baking box, sticking cake ramming device, frying pan etc., water drum, cake mould, dish for cooking, cutter, kitchen knife, spoon etc. have the utensil of fluororesin film, also can obtain same effect.
Embodiment 4
Below, in structure shown in Figure 1, make main composition with the hear resistance macromolecular material polyethersulfone resin of solid constituent, the charcoal powder is mixed with the ratio in the solid constituent shown in the table 4 make coating, form film 5 with this coating.Here, used charcoal is general oak black wood charcoal.These applying coatings on above-mentioned electric hot water bottle inner surface of container, are formed film 5, make sample shown in the table 4.
Table 4
| Evaluation result | ||||
| No. | Charcoal content (weight %) | Taste | Coating characteristic (adhesiveness) | Overall merit |
| 12 | 0.5 | ○ | ◎ | ○ |
| 13 | 1 | ○ | ◎ | ○ |
| 14 | 2 | ◎ | ◎ | ◎ |
| 15 | 5 | ◎ | ◎ | ◎ |
| 16 | 30 | ◎ | ◎ | ◎ |
| 17 | 50 | ○ | ○ | ○ |
| 1 8 | 70 | △ | × | × |
In sample shown in the table 4, check taste with the beverage of electric hot water bottle institute bubble in full bloom (hereinafter to be referred as " taste ", also title " taste " in the table 4, as follows) and as the adhesiveness of film fundamental characteristics.For the evaluation of taste, be to make tea under certain conditions with this boiling water, by 5 taste Shi Jinhang sensory evaluation, its result's mean value ◎-* expression.◎ represents " very good ", zero expression " good ", and △ represents " poor slightly ", * expression " poor " (herewith following).Adhering evaluation method is, boil pre-determined number (to call " practical long duration test " in the following text) repeatedly with electric hot water bottle after, carry out the cellophane tape disbonded test.◎～* expression content and taste estimate identical, the benchmark of practicability is more than zero.
These results and comprehensive evaluation result are shown in table 4 in the lump.By table 4 as seen, when the charcoal addition was 0.5-50 weight %, taste and coating characteristic were all good.Wherein, the charcoal addition is that the sample 14-16 of 2-30 weight % is good especially.
This is because contained charcoal powder is launched infrared ray in the inner surface film, its ultra-red ray effect makes water correction, the part of the liquid in the direct contacting container of while film has mineral compositions trace strippings such as contained calcium of charcoal powder and magnesium, and the feasible taste of the beverage of interior water of container or boiling water bubble of using improves.Containedly in the charcoal powder be the compound of main component and be the compound stripping of main component with alkali metals such as potassium, sodium with alkali earth metals such as this class calcium, magnesium, proterties alcaliotropism one lateral deviation of water is moved, during with beverages such as this bubble tea and black tea, coffees, because its extraction power increases, can provide delicious beverage.In addition, boil when waiting with the water of this alcaliotropism skew, the time shortening of boiling is cooked respond well.
In the structure of present embodiment, contain the liquid in the direct contacting containers 2 of film 5 of charcoal powder, certainly, the present invention is not limited to this example, part on film 5 forms the permeable film of infrared ray (for example being the film of main component with the polyethersulfone resin), the infrared ray emission effect that then can obtain the charcoal powder is certain, can also obtain from the water correction effect of film 5 with the micro constitutent generation of the charcoal powder of the direct contact portion stripping of aforesaid liquid.
Make electric hot water bottle similarly to Example 4, different is to be added on the particle diameter of the charcoal powder in the film 5 by adjusting shown in the table 5.The addition of the charcoal powder in these samples is 5 weight %.
Table 5
| Evaluation result | ||||
| No. | Charcoal powder diameter (μ m) | Coating characteristic (corrosion resistance) | Soil resistance | Overall merit |
| 19 | 1 | ◎ | ◎ | ◎ |
| 20 | 10 | ○ | ○ | ○ |
| 21 | 20 | × | △ | × |
The coating characteristic of sample and soil resistance shown in the check table 5.Here, coating characteristic system is the salt solution insulation stipulated time of normal concentration, observe film whether swell with and adhesiveness, with ◎～* expression.The result of this par method (state of brine strength, temperature retention time and film) has correlation with the practical required standard to electric hot water bottle in other evaluation.
Soil resistance is carried out above-mentioned " practical long duration test ", and the back checks that the complexity of its soil release draws.
These results are shown in table 5 in the lump.By table 5 as seen, the particle diameter of the charcoal powder of interpolation is as surpassing 10 μ m, and then coating characteristic and soil resistance reduce.On the other hand, the particle diameter of charcoal powder can obtain good film when 1 μ m is following.
Embodiment 6
Be produced on the electric hot water bottle identical with embodiment 4, different is, will be added on the ratio of ferrous components of the charcoal powder in the film 5 by adjusting shown in the table 6.The charcoal powder addition of these samples is 5 weight % similarly to Example 2.
For sample shown in the table 6, carry out the taste evaluation by the method identical with embodiment 1, its result is shown in table 6 in the lump.
Table 6
| Evaluation result | ||
| No. | Ferrous components ratio (weight %) | Taste |
| 22 | 0.05 | ◎ |
| 23 | 0.1 | ○ |
| 24 | 0.5 | × |
By these results as seen, the ratio of contained ferrous components gets final product below 0.1 weight % in the charcoal powder, and is if below 0.05 weight %, then better.
Embodiment 7
Make the electric hot water bottle identical with embodiment 4, different is, with the ratio of contained charcoal powder and carbon element pigment in the film 5 by adjusting shown in the table 7.These samples are carried out the evaluation of taste, and its result is shown in table 7 in the lump.
Table 7
| Evaluation result | |||
| No. | Charcoal content (weight %) | Carbon element pigment content (weight %) | Taste |
| 25 | 0.5 | 0.5 | ○ |
| 26 | 0.5 | 1 | ◎ |
| 27 | 0.5 | 3 | ◎ |
| 28 | 0.5 | 5 | ◎ |
| 15 | 5 | 0 | ◎ |
Shown in table 7 result, when the charcoal amount addition in the film 5 is 0.5 weight % of minimum, as add carbon element pigment more than the 1 weight %, then its taste becomes good comparably with the sample No.15 that adds charcoal powder 5 weight %.This be since the particle diameter of carbon element pigment usually below the sub-micron order of magnitude, also littler one more than the order of magnitude than charcoal powder.That is, even the amount of carbon element pigment is identical with the charcoal powder, its surface area increases then tremendously, so the infrared ray amount that goes out from its surface emitting also becomes many.It is believed that taste improves effect and also rises pro rata with this infrared ray amount.
Embodiment 8
Make the electric hot water bottle identical with embodiment 4, different is, with the charcoal content of powder in the film 5 and ratio by adjusting shown in the table 8.These samples are carried out the evaluation of taste, and its result is shown in table 8 in the lump.
Table 8
| Evaluation result | |||
| No. | Charcoal content (weight %) | The carbon element kind | Taste |
| 13 | 1 | The oak black wood charcoal | ○ |
| 29 | 1 | Whitewood's charcoal | ◎ |
| 17 | 50 | The oak black wood charcoal | ○ |
| 30 | 50 | Whitewood's charcoal | ◎ |
Result by table 8 also can be clear, when charcoal content is identical, and the features good taste of whitewood's charcoal.
It is believed that it the reasons are as follows.The content of charcoal is few in No.13 and the No.29 sample, but uses in the No.29 sample of high quality white charcoal, can make alkali metal composition strippings such as potassium that the sense of taste improves, sodium become many.On the other hand, the charcoal content in No.17 and the No.30 sample is many, but the No.30 sample of use high quality white charcoal is owing to the impurity stripping makes the influence of taste variation less.
Embodiment 9
Make the electric hot water bottle identical with embodiment 4, different is, with the content of charcoal powder in the film 5 and fluororesin by adjusting shown in the table 9.Here, used fluororesin is a polytetrafluoroethylene (PTFE).Check the detergency ability of the practicality of these samples.Concrete grammar is after carrying out practical long duration test, to remove the dirt that is attached to the film surface with moisture nylon sponge.Its result illustrates table 9 according to the difficulty or ease of soil release in the lump with ◎～△.
Table 9
| Evaluation result | |||
| No. | Charcoal content (weight %) | Fluororesin content (weight %) | The difficulty or ease of soil release |
| 15 | 5 | 0 | △ |
| 31 | 5 | 5 | ○ |
| 32 | 5 | 10 | ◎ |
By the result of table 9 as seen, in the film not its dirt of No.15 sample of fluorine resin slightly difficulty remove, and fluororesin content is that its dirt of No.31 sample of 5 weight % can be removed in the film.Fluorine content is easier the removing of its dirt of No.32 sample of 10 weight %.Thus, in film, add fluororesin, can improve the soil release performance.
Embodiment 10
Make the electric hot water bottle identical with embodiment 4, different is, with as shown in table 10 adjustment of content of charcoal powder in the film 5 and hollow micro-capsule.Here, used hollow micro-capsule is the porous silica micro-capsule.
Carry out the comparison of sound to boil water with these samples.The method of testing of sound to boil water is, and is to boil water in the room of the about 30dB of back ground noise (level in daytime in the family), represents at this moment sound to boil water with ◎～△.Here, △ represents " how much taking notice of ", zero expression " paying no attention to ", and ◎ represents to pay no attention to fully.These results are shown in table 10 in the lump.
Table 10
| Evaluation result | |||
| No. | Charcoal content (weight %) | Micro-capsule content (weight %) | Sound to boil water |
| 15 | 5 | 0 | △ |
| 33 | 5 | 5 | ○ |
| 34 | 5 | 10 | ◎ |
By the result of table 10 as seen,, more or less take notice of, and be the sound to boil water of the No.33 sample of 5 weight %, then can not take notice of basically for silica micro-capsule content in the film for the sound to boil water of the No.15 sample that does not contain the silica micro-capsule in the film.Silica micro-capsule content is that the sound to boil water of the No.34 sample of 10 weight % then can not taken notice of fully.Thus, in film, add the micro-capsule of hollow, sound to boil water is reduced.
In the above-described embodiments, all be that example is illustrated, certainly with the electric hot water bottle, the present invention is not necessarily limited to this, to the container of water drum, cup, other holding liquids, and vacuum flask, kettle, other device for heating liquids, or preserve device for heating liquids, same effect is also arranged.
For the charcoal powder, be described with regard to the oak black wood charcoal, certainly, the present invention is not limited to this.As log, except oak, use the hard charcoal etc. of various and higher various logs such as toothed oak wood, oak, pine, chestnut than black wood charcoal charing degree and with sawdust etc. as the processing charcoals such as bright and beautiful ash of raw material etc., also can obtain same effect.
Table 11 is the component list of black ridge oak (beech material aiphyllium) hard charcoal and oak black wood charcoal.
Table 11
| Crow ridge oak hard charcoal | The oak black wood charcoal | Annotate | |||||||
| Ash content 1.87% | Ash content 1.77% | ||||||||
| Silicic acid | Crow ridge oak is with respect to the % of charcoal | 0.007 | Crow ridge oak is with respect to the % of ash content | 0.36 | Oak is with respect to the % of charcoal | 0.017 | Oak is with respect to the % of ash content | 0.90 | SiO |
| Iron | 0.007 | 0.36 | 0.023 | 1.76 | Fe 2O 3 | ||||
| Aluminium oxide | 0.104 | 5.39 | 0.004 | 0.23 | Al 2O 3 | ||||
| Titanium | 0.001 | 0.05 | 0.004 | 0.23 | TiO 2 | ||||
| Manganese | 0.095 | 4.92 | 0.004 | 0.23 | MnO | ||||
| Lime | 0.630 | 32.64 | 0.811 | 45.62 | CaO | ||||
| Magnesia | 0.497 | 25.75 | 0.089 | 5.01 | MgO | ||||
| Potassium oxide+sodium oxide molybdena | 0.398 | 20.63 | 0.029 | 16.29 | K 2O+Na 2O | ||||
| Phosphoric acid | 0.060 | 3.11 | 0.046 | 2.60 | P 2O 3 | ||||
| Carbonic acid etc. | 0.131 | 6.79 | 0.482 | 27.13 | CO 2+ other | ||||
Embodiment 11
In the structure of Fig. 1, film 5 is that main component constitutes with fluororesin and polyethersulfone resin.The magnesia of making in the film 5 accounts for 0.5% (Sample A) of film weight and the electric hot water bottle of 1.0% (sample B).For relatively, also made the electric hot water bottle (existing product) of the present production of oxygen-free magnesium in the film 5.
Make tea with the boiling water that these water heaters boil, analyze their taste and stripping composition.The method of making tea is that injection boiling water 300cc placed after 1 minute in medium tealeaves 5g, injected the predetermined container that is used for sensory evaluation.Used tealeaves is same product batch number, and has screened out fine powder with No. 40.
The evaluation of the taste of tea is by 10 special taste Shi Jinhang, and assessment item is 6 of " water colour " " fragrance " " taste " " delicious food " " astringent taste " " overall merit ".During evaluation, the tea that will go out with the bubble that existing product boils is decided to be 3 fens, does relatively therewith, divides 5 grades and marks.Finally, the mean value of the score of these 6 projects be the results are shown in table 12 as the sensory evaluation of tea.
Analyze the tea of estimating here, the content of the representative composition theanine of the delicious food of mensuration tea and the representative composition tannin of astringent taste.These results also are shown in table 12 in the lump.
Table 12
| The sample name | Content of magnesia | The evaluation result of tea | ||
| Sensory evaluation | Theanine | Tannin | ||
| Existing product | Do not have | 3.0 divide | 8mg/100g | 0.06g/100g |
| Sample A | 0.5 weight % | 3.2 divide | 10mg/100g | 0.07g/100g |
| Sample B | 1.0 weight % | 3.5 divide | 11mg/100g | 0.09g/100g |
By the result of table 12 as seen, contain magnesian Sample A and B in the film, on score, all be better than existing product, illustrate that the taste of tea improves.
Assign to from one-tenth, each composition all increases when using existing product to some extent.This is that correspondingly, it is rapid that the stripping of tea component also becomes because the boiling water of Sample A and B can soak into tealeaves rapidly.That is, compare with the identical extracting time, when using Sample A, B, the amount that tea component is extracted increases.The result shows that the taste of tea improves the increase of the composition that has benefited from being gone out by extracting when using Sample A, B.
Embodiment 12
Use the electric hot water bottle identical, observe influence cooking with embodiment 11.The situation that the boiling water that experiment system boils with each electric hot water bottle shown in the table 12 is relatively hotted plate spinach.Experimental technique is as follows.With boiling tap water, be incubated 30 minutes with electric hot water bottle thereafter, put into the leaf of spinach of 1 normal size then, take out, after the washing, measure the hardness of assigned position (stem portion), as the situation of hotting plate through after the stipulated time.The mensuration of hardness is carried out with the creep test device.
Concrete grammar is that elder generation floods the leaf of spinach 30 seconds in the boiling water that boils with existing product, measures hardness with said method.With its hardness as benchmark hardness.Then the boiling water that boils with Sample A and B is operated too.In these experiments, the dip time of the leaf of spinach is carried out some variations, measure hardness, the related data of record dip time and hardness.By calculating, obtain the same required time of benchmark hardness when using existing product that reaches from these data.Select the almost onesize blade of the spinach of same product batch number during mensuration for use, and respectively measure 5 times, with their mean value as data.It the results are shown in Table 13.
Table 13
| Content of magnesia | Boiling time (second) | |
| Existing product | Do not have | 30 (benchmark) |
| Sample A | 0.5 weight % | 27 |
| Sample B | 1.0 weight % | 23 |
Can understand from the result of table 13, contain magnesian Sample A and B in the film, their time of hotting plate is all than the weak point with existing product.For these results, can do explanation similarly to Example 11.That is, compare with the boiling water that uses existing product, use the boiling water of Sample A and B to be impregnated into rapidly in the leaf of spinach, the result reaches the required time of the hotting plate shortening of same rigidity.The time of hotting plate shortens, and then the amount of nutritional labeling stripping from leaf is just few, from the angle of nutrition, is good to use these samples.
In this experiment, for convenience, in electric hot water bottle, hot plate the leaf of spinach, but with the boiling water that electric hot water bottle boils move on to the pot etc. in hot plate, also can get effect equally.In addition, on the inner surface of general pot, still etc., form film of the present invention, also can obtain same effect.
The material that makes liquid become alkalescence in the various embodiments described above is that example is illustrated with alkaline matter magnesia all, certainly, the present invention is not limited, the alkaline matter that uses the hydroxide of alkali metal such as calcium hydroxide and sodium acid carbonate or alkali earth metal or carbonate and so on also can be obtained same effect as making liquid become the material of alkalescence.In addition, also can be added with the metallic compounds such as carbon, charcoal or nickel oxide, silica, carborundum of infrared ray emission effect etc., concrete addition and fusion state are decided according to their characteristics separately.
As seen from the above-described embodiment, according to the present invention, by at the fluororesin film that forms on the container below the thick 30 μ m, make silicone oil composition in the film below 2 weight %, can obtain the electric hot water bottle that layer can not separate, the adhering decline of film is suppressed beyond fluororesin layer and the fluororesin.
On above-mentioned film, form the sign part that constitutes by fluororesin, polyethersulfone resin and pigment, make silicone oil composition in this signs part below 2 weight %, can guarantee by clapping the sign adhesiveness partly that impression becomes.
On the upper strata of film second tunic of being made up of polyethersulfone resin is set, like this, can between fluororesin and silicone oil, forms a layer, thus, can improve the adhesiveness of film, prevent non-sign portion generation glue trace.
By making the carbon dust that contains in the fluororesin film more than the 20 weight %, can suppress the aggegation of the exudate layer that forms after the fluororesin film roasting, thereby can suppress the generation of glue trace.
In the present invention, form the film that contains charcoal powder composition, thus,, thereby can improve the water quality of liquid in container because the charcoal powder can be launched infrared ray and stripping micro constitutent on the surface of electric hot water bottle container contact liq.
In addition, form the film that contains the material that can make liquid change alkalescence at inner surface of container (surface of contact liq), make the liquid in the container become alkalescence, thus, can provide the extraction degree that can improve tea component, shorten the good electric hot water bottle of practicality of the time of hotting plate of vegetables etc.
The explanation of symbol
1. shell
2. container
3. indicate part (water level line)
4. heater
5. film
6. loam cake
7. temperature sensor
8. temperature control equipment
9. go out hot water button
10. liquid outlet
11. electrodynamic pump
12. hot-water outlet pipe
13. discharge opening
14. second tunic
15. glue trace
Claims (17)
1. electric hot water bottle, it is characterized in that, at least have the temperature sensor of heater, the monitoring aforesaid liquid temperature of the container of receiving fluids, the shell that holds said vesse, the loam cake that covers said vesse, heating aforesaid liquid, control the temperature control equipment of caloric value of above-mentioned heater and the means that aforesaid liquid is discharged from said vesse inside according to the temperature of aforesaid liquid, on the said vesse inner surface, have and contain the film that can make liquid become the material of alkalescence at least.
2. electric hot water bottle as claimed in claim 1 is characterized in that, the described material that makes liquid become alkalescence is an alkaline matter.
3. electric hot water bottle as claimed in claim 2 is characterized in that described alkaline matter is a magnesia.
4. electric hot water bottle as claimed in claim 1 is characterized in that, has the container that comprises the film that at least fluororesin be made of of thickness below 30 μ m, and the silicone oil composition in the film is below 2 weight %.
5. electric hot water bottle as claimed in claim 4 is characterized in that, the sign part is arranged on the part of film.
6. electric hot water bottle as claimed in claim 5 is characterized in that, described sign part is made of fluororesin, polyethersulfone resin, pigment at least, and the silicone oil composition accounts for below the 2 weight % in the film that forms above-mentioned sign part.
7. electric hot water bottle as claimed in claim 5 is characterized in that, the non-at least sign part on the film upper strata is provided with second tunic that is made of polyethersulfone resin.
8. electric hot water bottle as claimed in claim 1, it is characterized in that, on the inner surface of the container of holding liquid, the film that contains fluororesin, pigment and adhesive ingredients is at least arranged, as the content of carbon element pigment in film of above-mentioned pigment more than 20 weight %, useful seal glue transfer printing on the above-mentioned film and the printed layers that forms.
9. electric hot water bottle as claimed in claim 8 is characterized in that, described seal glue is made of the material of silicon rubber at least.
10. electric hot water bottle as claimed in claim 1 is characterized in that, forms the film that contains charcoal powder composition on described inner surface of container and face that aforesaid liquid contacts.
11. electric hot water bottle as claimed in claim 10 is characterized in that, the content of charcoal powder is 0.5-50 weight % in the film.
12. electric hot water bottle as claimed in claim 10 is characterized in that, the particle diameter of charcoal powder is below 10 μ m.
13. electric hot water bottle as claimed in claim 10 is characterized in that, as the content of ferrous components in the charcoal powder of impurity component below 0.1 weight %.
14. electric hot water bottle as claimed in claim 10 is characterized in that, contains the above carbon element pigment of 1 weight % in the film.
15. electric hot water bottle as claimed in claim 10 is characterized in that, described charcoal powder is a high quality white charcoal powder.
16. as each described electric hot water bottle among the claim 10-15, it is characterized in that, contain fluororesin in the film.
17., it is characterized in that in the film on the heating surface of the container of heater heating liquid, the hollow micro-capsule being arranged as each described electric hot water bottle among the claim 10-15.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP071819/2000 | 2000-03-15 | ||
| JP2000071819A JP3580217B2 (en) | 2000-03-15 | 2000-03-15 | Electric water heater |
| JP111763/2000 | 2000-04-13 | ||
| JP2000111763A JP3677432B2 (en) | 2000-04-13 | 2000-04-13 | Electric water heater |
| JP2000305827A JP2002112892A (en) | 2000-10-05 | 2000-10-05 | Electric water heater |
| JP305827/2000 | 2000-10-05 | ||
| JP007348/2001 | 2001-01-16 | ||
| JP2001007348A JP2002209741A (en) | 2001-01-16 | 2001-01-16 | Electric water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1314127A CN1314127A (en) | 2001-09-26 |
| CN1143649C true CN1143649C (en) | 2004-03-31 |
Family
ID=27481120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011117354A Expired - Fee Related CN1143649C (en) | 2000-03-15 | 2001-03-15 | Electric heating thermos bottle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1143649C (en) |
| HK (1) | HK1038868B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695430B (en) * | 2009-10-21 | 2011-09-21 | 中山市美斯特实业有限公司 | Kettle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941779A (en) * | 2014-04-01 | 2014-07-23 | 昆山市张浦镇建茂电子厂 | Electronic product for automatic heating and temperature regulation of water |
-
2001
- 2001-03-15 CN CNB011117354A patent/CN1143649C/en not_active Expired - Fee Related
-
2002
- 2002-01-18 HK HK02100396.8A patent/HK1038868B/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695430B (en) * | 2009-10-21 | 2011-09-21 | 中山市美斯特实业有限公司 | Kettle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1314127A (en) | 2001-09-26 |
| HK1038868A1 (en) | 2002-04-04 |
| HK1038868B (en) | 2004-12-31 |
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