CN110527602A - A kind of portable computer impregnated wipe - Google Patents
A kind of portable computer impregnated wipe Download PDFInfo
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- CN110527602A CN110527602A CN201910815971.4A CN201910815971A CN110527602A CN 110527602 A CN110527602 A CN 110527602A CN 201910815971 A CN201910815971 A CN 201910815971A CN 110527602 A CN110527602 A CN 110527602A
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- maceration extract
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- impregnated wipe
- woven fabrics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/94—Mixtures with anionic, cationic or non-ionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2079—Monocarboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/50—Perfumes
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/62—Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/90—Betaines
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- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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Abstract
A kind of portable computer impregnated wipe, is related to impregnated wipe technical field.It is made of substrate and maceration extract, wherein maceration extract is made of 0.1-1% empgen BB (BS-12), 0.05-2% cetyl trimethylammonium bromide (CTAB), 0.01-1% sodium benzoate, 0.01-0.5% essence and balance deionized water.Empgen BB (BS-12), cetyl trimethylammonium bromide (CTAB), sodium benzoate, essence and deionized water are added into stirring container first, heating, is uniformly mixed to obtain maceration extract at sterilizing；Then it is delivered to after non-woven fabrics being cut in paper handkerchief automatic layboy, recycles maceration extract immersion non-woven fabrics, be finally packaged to be portable computer impregnated wipe product.By reasonably selecting composition of raw materials and proportion, makes manufactured portable computer impregnated wipe, there is stronger removal grease stain effect, while there are stronger biocidal efficacies.
Description
Technical field
The present invention relates to impregnated wipe technical fields, are specifically related to a kind of portable computer impregnated wipe.
Background technique
With the development of economy with the raising of consumers living, product in the market kept updating, especially
One change silently is occurring for paper handkerchief industry --- and dry paper handkerchief turns to hygenic towelette.Hygenic towelette is defended as emerging in recent years
Raw articles, purposes is very extensive, can be used for personal consumption and commercial a variety of occasions, such as civil aviaton, family, hotel, dining room, goes out
Travelling etc., is gradually had been favored by people with its convenience.It is wet with the raising of people's hygienic habit formed with quality of life
Paper handkerchief can be increasingly becoming the necessity of people's daily life.
With the development of technology and the improvement of people ' s living standards, mobile phone, computer etc. have become everyone indispensability substantially
Communication and office tools, mobile phone, the frequent of computer use and numerous bad habits of user, make mobile phone screen, computer screen,
The positions such as keyboard and mouse most probably become the place of microorganism growth, breeding, constitute to user's health and greatly threaten.
In the market and there is no the cleaner specials for mobile phone and computer.Therefore, it prepares a kind of with good removal
Grease stain effect and portable computer impregnated wipe with stronger bactericidal effect have good market prospects.
Summary of the invention
For above-mentioned technical problem present in currently available technology, the present invention provides a kind of cleaning of portable computer is wet
Towel.By reasonably selecting composition of raw materials and proportion, makes manufactured portable computer impregnated wipe, there is stronger removal grease stain effect
Fruit, while there are stronger biocidal efficacies.
To achieve the goals above, the technical scheme adopted by the invention is as follows:
A kind of portable computer impregnated wipe, is made of substrate and maceration extract, wherein maceration extract by following weight proportion original
Material composition:
As the preferred technical solution of the present invention, maceration extract is made of the raw material of following weight proportion:
As present invention further optimization technical solution, maceration extract is made of the raw material of following weight proportion:
Preferably, the substrate of portable computer impregnated wipe is selected as non-woven fabrics.
The preparation method of portable computer impregnated wipe is that the maceration extract that will be prepared is carried on non-woven fabrics and packs shape
At portable computer impregnated wipe, specifically: first by empgen BB (BS-12), cetyl trimethylammonium bromide
(CTAB), sodium benzoate, essence and deionized water are added into stirring container, and heating, is uniformly mixed to obtain maceration extract at sterilizing；So
It is delivered to after non-woven fabrics is cut afterwards in paper handkerchief automatic layboy, recycles maceration extract immersion non-woven fabrics, be finally packaged to be hand
Electromechanical brain impregnated wipe product.
The surfactant that the present invention selects is cetyl trimethylammonium bromide and empgen BB.Cetyl
Trimethylammonium bromide (CTAB) is a kind of cationic detergent, and white or Light yellow crystals body is soluble in isopropyl to powdered
Alcohol, it is water-soluble, have good compatibility with cation, nonionic, amphoteric surfactant, have excellent infiltration, softening,
The performances such as emulsification, antistatic, biological degradability and sterilization, chemical stability is good, heat-resisting, fast light, pressure-resistant, strong alkali-acid resistance.
CTAB is also a kind of good antibacterial agent, can dissolve cell membrane, has precipitate nucleic acids and acidity from the solution of low ionic strength
The characteristic of polysaccharide, under these conditions, protein and neutral polysaccharide remain in solution；In the solution of high ionic strength
In, CTAB and protein energy and most of polysaccharides form compound, are only unable to precipitate nucleic acids.Empgen BB (BS-
12) be a kind of zwitterionic surfactant, can with various types dyestuff, surfactant and cosmetic material compatibility, it is unsuitable
It is good in acid and alkaline stability inferior in 100 DEG C or more long-time at elevated temperature, biological degradability small to skin irritation
It is good, there is excellent decontamination, soft right property and antistatic property etc..Empgen BB is usually used in preparing shampoo, bubble bath, sensitivity
Skin preparation, children's cleaning agent etc., it is also possible to make fiber, fabric softener and antistatic agent, lime soap dispersant etc..
Decontamination principle of the invention are as follows: surfactant is the molecule formed by two kinds of different particles of polarity, a kind of grain
Son has an extremely strong lipophilicity, it is another then with extremely strong hydrophily.After being dissolved in the water, surfactant can reduce water
Surface tension, and improve the solubility of organic compound.By different piece in molecule respectively for the affine of two-phase, make two
Mutually regarded as the ingredient of this phase, molecules align between the two phases, is equivalent to the surface of two-phase and is transferred to intramolecule, thus
Reduce surface tension.Since two-phase is all regarded as a component of this phase, it is equivalent to two phases and surfactant molecule
Interface is not all formed, the interface of two phases of the elimination of part in this way is equivalent to, just reduces surface tension
And surface free energy.It can remove greasy dirt and other cleaning functions using this special nature of surfactant.
The effect of present invention passes through the component and proportion for rationally designing wet tissue maceration extract, makes portable computer impregnated wipe is more
By force, comprehensive performance is more preferable.Compared with prior art, beneficial effects of the present invention are shown:
(1), each ingredient CTAB, BS-12 in formula, sodium benzoate, essence and deionized water are dissolved each other functional, are passed through
Experiment discovery is placed 3 days at 25 DEG C of room temperature, and 8 DEG C of low temperature are placed for 24 hours, and 45 DEG C of medium temperature are placed for 24 hours, and it is steady that observation result can obtain it
It is qualitative good, without lamination.
(2), it is tested by a series of degreasing and skin care item, determines that the best in quality score of BS-12 is 0.253%,
The ratio all plays good degreasing result to sticking film for mobile phone and computor-keyboard, to the removal of skin care item under streamflow regime
Effect is not very good, but in the case where artificially gently wiping external force, still there is good removal effect.
(3), the experimental results showed that the formula antibacterial agent CTAB is blue to common bacteria, Gram-negative bacteria Escherichia coli and leather
Family name positive bacteria bacillus subtilis all has good antibacterial effect, has excellent broad spectrum antibacterial performance.To Escherichia coli and
The lowest concentration of antimicrobial range of bacillus be 0.123~0.245%, so best antimicrobial agent mass fraction be averaged for
0.184%.
(4), the experimental results showed that, the acid-base property of formula solution is 7 or so, so not needing to adjust using citric acid
pH。
Detailed description of the invention
Fig. 1 is that embodiment 1 prepares maceration extract to the removal effect of drier oil on sticking film for mobile phone.
Fig. 2 is that embodiment 1 prepares maceration extract to the removal effect of wet oil on cotton.
Fig. 3 is the concentration and the practical removal rate curve of sticking film for mobile phone greasy dirt of BS-12 in embodiment 2-5.
Fig. 4 is that embodiment 3 prepares maceration extract to the removal effect of wet oil on sticking film for mobile phone and the comparison photo of soaking time.
Fig. 5 is the removal rate curve of different soaking time wet oils.
Fig. 6 is the concentration and sticking film for mobile phone, the practical removal rate curve of computor-keyboard greasy dirt of BS-12 in embodiment 2-5.
Fig. 7 is the maceration extract of the preparation of embodiment 8 to the inhibition situation (b) of common bacteria and the inhibition situation of blank control group
(a) comparison diagram.
Fig. 8 is that the CTAB of various concentration compares (a blank control group, b embodiment 6, c reality to the anti-microbial property of Escherichia coli
Apply example 7, d embodiment 8).
Fig. 9 is that the CTAB of various concentration compares (a blank control group, b embodiment 6, c reality to the anti-microbial property of bacillus
Apply example 7, d embodiment 8).
Specific embodiment
A kind of portable computer impregnated wipe of the invention is made with reference to embodiments and being discussed further.
Embodiment 1-5
The proportion of portable computer impregnated wipe is as shown in table 1.
The proportion table of 1 embodiment 1-5 portable computer impregnated wipe of table
| Embodiment | 1 | 2 | 3 | 4 | 5 |
| BS-12, % | 0.125 | 0.127 | 0.253 | 0.506 | 1.012 |
| CTAB, % | 0.23 | 0.245 | 0.245 | 0.245 | 0.245 |
| Sodium benzoate, % | 0.1 | 0.2 | 0.15 | 0.3 | 0.25 |
| Lemon extract, % | 0.05 | 0.1 | 0.15 | 0.2 | 0.3 |
| Deionized water | Surplus | Surplus | Surplus | Surplus | Surplus |
The preparation method comprises the following steps: by empgen BB (BS-12), cetyl trimethylammonium bromide (CTAB), benzoic acid
Sodium, essence and deionized water are added into stirring container, and heating, is uniformly mixed to obtain maceration extract at sterilizing.
Embodiment 6-11
The proportion of portable computer impregnated wipe is as shown in table 2.
The proportion table of 2 embodiment 6-11 portable computer impregnated wipe of table
| Embodiment | 6 | 7 | 8 | 9 | 10 | 11 |
| BS-12, % | 0.253 | 0.253 | 0.253 | 0.253 | 0.253 | 0.253 |
| CTAB, % | 0.062 | 0.123 | 0.245 | 0.49 | 0.98 | 1.96 |
| Sodium benzoate, % | 0.1 | 0.2 | 0.15 | 0.3 | 0.25 | 0.2 |
| Strawberry essence, % | 0.2 | 0.15 | 0.1 | 0.05 | 0.08 | 0.16 |
| Deionized water | Surplus | Surplus | Surplus | Surplus | Surplus | Surplus |
The preparation method comprises the following steps: by empgen BB (BS-12), cetyl trimethylammonium bromide (CTAB), benzoic acid
Sodium, essence and deionized water are added into stirring container, and heating, is uniformly mixed to obtain maceration extract at sterilizing.
Embodiment 12
The research of wet tissue detergency ability
1, experimentation
It is about 25cm by area2Different materials (sticking film for mobile phone, keyboard) fill old oil or skin care item, be respectively placed in not
With in the maceration extract (embodiment 1-5) of concentration, is stirred in external force or without under the effect of external force standing, probe into its clean effect respectively.
2, the calculating of soil removal efficiency
Soil removal efficiency calculation formula:
In formula:
m2- deoil after material gross mass, m1Material gross mass after-oiling；m0Material matter before-oiling,
η-soil removal efficiency.
3, using sticking film for mobile phone as the washing tests of material
3.1, the removal of wet oil and drier oil is tested under external force
Then taking 2 pieces of areas is 25cm2Sticking film for mobile phone, quality of materials m before oiling0=0.438g, it is one of to use liquid relief
Stick is stained with a small amount of old oil and fills sticking film for mobile phone, material gross mass m after oiling1=0.518g.After other one piece of oiling by its
Dry 15min weighs its drier oil material total weight m at 60 DEG C1=0.518g, respectively to wet oil and drier oil material in same rotational speed
Under (120r/min) stir 30s in maceration extract prepared by embodiment 1, can obviously observe to obtain wet oil and drier oil sticking film for mobile phone
Surface blot is completely without drying 30min at 60 DEG C for sticking film for mobile phone, surface moisture is evaporated, weighing two pieces of weight is
m2=0.438g can obtain η=100% according to formula, that is, can be shown that under external force stirring, maceration extract prepared by embodiment 1 is to wet oil
Soil removal efficiency with drier oil is 100% (as shown in Figure 1a to the removal effect of drier oil).
As a comparison, using sticking film for mobile phone as material, respectively with clear water to wet oil and drier oil the (120r/ under the identical slow-speed of revolution
Min same experiment, available wet oil m) are0=0.351g, m1=0.655g, m2=0.588g；Drier oil m0=0.421g, m1
=0.677g, m2=0.621g.By experiment it is found that showing under external force stirring, clear water as a comparison is to wet oil and drier oil
Soil removal efficiency is respectively 22.04%, 18.69% (as shown in Figure 1 b to the removal effect of drier oil).
3.2, washing tests of unlike material under external force
Taking 1 piece of area is 25cm2Cotton, using embodiment 1 prepare maceration extract identical experimental implementation is carried out to it,
Mixing time is 30s, available wet oil material: m0=0.303g, m1=0.771g, m2=0.627g can obtain η according to formula
=30.77%, clean effect does not have that sticking film for mobile phone is good (removal effect is as shown in Figure 2), the reason is that suction-operated of the cotton to oil
Power is bigger.
3.3, the removal of wet oil and drier oil is tested without various concentration formula under external force
Taking 4 pieces of areas is 25cm2Sticking film for mobile phone, under no external force directly will fill oil sticking film for mobile phone be statically placed in
Same operation experiments are carried out respectively in the beaker of the maceration extract of the 2-5 of embodiment containing 100g preparation respectively, time of repose 2min,
The results are shown in Table 3.
Wet oil and drier oil clean effect of maceration extract of the table 3 without embodiment 2-5 preparation under external force to sticking film for mobile phone
| Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| m0(wet oil), g | 0.439 | 0.420 | 0.352 | 0.359 |
| m1(wet oil), g | 0.564 | 0.547 | 0.527 | 0.515 |
| m2(wet oil), g | 0.538 | 0.466 | 0.413 | 0.406 |
| η (wet oil), % | 20.8 | 63.28 | 64.77 | 70.12 |
| m0(drier oil), g | 0.439 | 0.352 | 0.420 | 0.359 |
| m1(drier oil), g | 0.594 | 0.488 | 0.548 | 0.514 |
| m2(drier oil), g | 0.564 | 0.452 | 0.513 | 0.467 |
| η (drier oil), % | 19.87 | 30.77 | 27.56 | 30.24 |
The concentration of BS-12 and the practical removal rate curve of sticking film for mobile phone greasy dirt are as shown in figure 3, in no external force in embodiment 2-5
It acts on lower BS-12 content to increase, soil removal efficiency increases；Same recipe solution gets well the dirt-removing power of wet oil than drier oil effect.It is comprehensive
The market price for considering soil removal efficiency and Formulation Ingredients is closed, 0.253% is more suitable in the concentration selection example 3 of BS-12.
3.4, the removal of greasy dirt is tested without soaking times different under external force
The sticking film for mobile phone for filling oil is statically placed in the beaker of maceration extract prepared by embodiment containing 100g 3, when observation is impregnated
Between influence to clean effect, the results are shown in Table 4, appearance comparison as shown in Figure 4 (respectively represent from left to right immersion 1,2,
3min), the removal rate curve of different soaking time wet oils is as shown in Figure 5.
The clean effect of the different soaking time wet oils of table 4
| Soaking time | 30s | 1min | 2min | 3min |
| η (wet oil) % | 27.63 | 54.07 | 63.28 | 83.46 |
It can be seen from Figure 4 and 5 using sticking film for mobile phone as material under no external force soil removal efficiency with the action of soaking time
Extend and increases.
4, using cell phone keyboard as the washing tests of material
4.1, there are external force, without the washing tests under external force
At the slow-speed of revolution (120r/min), the cell phone keyboard small pieces for filling oil are placed into leaching prepared by embodiment containing 100g 3
30s is stirred in the beaker of stain liquid, all greasy dirts can be observed and all remove, m0=1.723g, m1=1.826g, m2=1.724g,
η=100% can be obtained according to formula.
Under no external force, the computor-keyboard small pieces for filling oil are statically placed in maceration extract prepared by embodiment containing 100g 3
Beaker in.It can be found that greasy dirt largely has been removed after standing 1min, m0=0.823g, m1=0.931g, m2=
0.844g can obtain η=80.56% according to formula.The all removals of all greasy dirts can be observed after standing 2min.m0=0.823g, m1
=0.931g, m2=0.823g can obtain η=100% according to formula.
4.2, the washing tests without various concentration under external force
4 various concentration formulas (maceration extract of embodiment 2-5 preparation) decontamination is carried out respectively using computor-keyboard as material (to adopt
With wet oil) it tests, time of repose 1min, experimental result is as shown in table 5.
Wet oil clean effect of the maceration extract of 5 embodiment 2-5 of table preparation to computor-keyboard
| Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| m0(wet oil), g | 1.723 | 0.823 | 1.723 | 0.823 |
| m1(wet oil), g | 1.835 | 0.931 | 1.806 | 0.945 |
| m2(wet oil), g | 1.747 | 0.844 | 1.734 | 0.839 |
| η (wet oil), % | 78.57 | 80.56 | 86.75 | 87.26 |
Curve such as Fig. 6 institute of the concentration of BS-12 and sticking film for mobile phone, the practical removal rate of computor-keyboard greasy dirt in embodiment 2-5
Show, under no external force, same concentrations stand same time, and the clean effect of computor-keyboard is got well than sticking film for mobile phone material,
It may be since the old oily adhesive force on sticking film for mobile phone surface is bigger than computor-keyboard.1min various concentration is stood to computor-keyboard
Soil removal efficiency variation less, soil removal efficiency generally all 80% or so, when there is external force, it is 100% that decontamination is very excellent.
5, to the washing tests of skin care item
Skin care item are uniformly applied to sticking film for mobile phone surface with pipette, (250r/min) carries out different in the case where there is external force
The washing tests of formula solution (maceration extract of embodiment 2-5 preparation), mixing time 2min, experimental result are as shown in table 6.
Clean effect of the maceration extract of 6 embodiment 2-5 of table preparation to skin care item
| Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| m0, g | 0.353 | 0.422 | 0.400 | 0.423 |
| m1, g | 0.394 | 0.490 | 0.423 | 0.493 |
| m2, g | 0.387 | 0.480 | 0.426 | 0.463 |
| η, % | 17.07 | 14.7 | 30.43 | 42.86 |
The concentration of BS-12 is with the curve of the practical removal rate of skin care item as shown in fig. 7, (low in streamflow regime in embodiment 2-5
Speed stirring) under, the same embodiment product is good without old oily clean effect to the dirt-removing powers of skin care item, the reason is that skin care item at
Point more complicated, but in the case where artificially gently wiping, the skin care item on sticking film for mobile phone can also be wiped and net with one.
6, decontamination conclusion
It is tested by a series of degreasing and skin care item, determines that the optimum mass fraction of BS-12 is 0.253%, it should
Ratio all plays good degreasing result to sticking film for mobile phone and computor-keyboard, imitates under streamflow regime to the removal of skin care item
Fruit is not very good, but in the case where artificially gently wiping external force, still there is good removal effect.
Embodiment 13
The research of wet tissue anti-microbial property
1, the selection of strain is tested
1.1, actual samples strain
Using cross-sectional investigation, random sampling, sample respectively 5 mobile phones and 5 computers, to mobile phone screen and computor-keyboard,
Mouse actual samples cultivate the bacterium colony, carry out simulated experiment.
1.2, the selection of special strain
Furthermore in order to verify whether formula has wider anti-microbial property, using the actual samples region of mobile phone and computer as bacterium
Kind, be it is far from being enough, the anti-microbial property of major part antimicrobial product, often only selects staphylococcus aureus or gemma bar at present
Bacterium, Escherichia coli respectively as gram-positive bacteria, Gram-negative bacteria representative.This experimental selection bacillus and large intestine bar
Bacterium respectively as gram-positive bacteria and Gram-negative bacteria representative, as the test strain of antibacterial experiment.
2, test method
The test of portable computer impregnated wipe formula anti-microbial property is divided into quantitative measuring method and qualitative test method, with fixed
Based on weight testing method.
2.1, quantitative measuring method
Anti-microbial property quantitative measuring method and standard include 100 (American of U.S. AATCC Test Method at present
Association of Textile Chemists and Colorists, U.S. textile dye family and chemist association) and Kui
Because of (Quinn) experimental method etc., and the standard of domestic hygenic towelette is it is also proposed that microbiological indicator must satisfy GB15979.Quantitative test
Process includes the disinfection of reagent, bacterium is tested in inoculation, bacterium is cultivated, to remaining bacterium colony counting etc..The advantages of method is quantitative, quasi-
Really, objective.
2.2, qualitative test method
Qualitative test method mainly has U.S. AATCC Test Method 90, and (Halo Test, haloing method, is also agar
Plating), AATCC Test Method 124 (parallel streak method) and JISZ2911-1981 (microbial resistance experimental method) etc..
Qualitative test method is included in culture dish inoculation test bacterium and the microorganism growing state that detects by an unaided eye.Advantage is that expense is low, speed
Degree is fast, the disadvantage is that antibacterial activity cannot be quantitative determined.
The present invention has studied the formula solution antibacterial effect of various concentration, by observing it to common bacteria, gram-negative
Property bacterium Escherichia coli and gram-positive bacteria bacillus subtilis antibacterial effect, calculate bacteriostasis rate, study its anti-microbial property.
3, main experimental materials, as shown in table 7.
7 antibacterial experiment main experimental materials of table
| Title material | Purity | Company |
| Peptone | BR | The extensive and profound in meaning star biotechnology responsibility Co., Ltd in Beijing |
| Beef extract | BR | Tianjin De Sheng Bioisystech Co., Ltd |
| Agar (strip) | BR | Sinopharm Chemical Reagent Co., Ltd. |
| Gram-negative bacteria Escherichia coli | Hefei College's biology and environment engineering provide | |
| Gram-positive bacteria bacillus subtilis | Hefei College's biology and environment engineering provide |
Other experimental materials: 75% alcohol, sodium chloride, sodium hydroxide, sterile water, antibacterial agent etc..
4, antibacterial experiment principle and method
4.1, antibacterial mechanisms
The sterilization and disinfection of formula solution, which are attributed to they and the strong interaction of bacterium living beings memebrane protein, to be made
Denaturation or lose function, these disinfectants have biggish solubility in water.
4.2, anti-microbial property measuring method
Maceration extract prepared by embodiment 6-13 is poured into respectively in dry culture dish, and the bacterium solution that suitable gradient is added applies
Cloth is uniform, is placed in 37 DEG C of cultures for 24 hours, and observation is taken out, using method of scoring meter with the plane plate specimen of antibacterial agent is not added to compare
Number, and calculate bacteriostasis rate.Warm incubator culture for 24 hours, and using integral asepsis growth minimum concentration as minimum inhibitory concentration
(MIC)。
5, antibacterial experiment step
5.1, Preparatory work of experiment works
(1) washing, drying, the sterilizing of instrument.
(2) preparation of actication of culture and bacterium solution
Experiment the previous day by selected strain secondary culture 18-24h, is tried with taking collarium that strain is inoculated into inclined-plane with method of scoring
In pipe culture medium (agar, peptone, beef extract culture medium are cultivated for 24 hours in 37 DEG C of incubators).By the bacterium on slant medium
Kind (Escherichia coli and bacillus) is inoculated into 250mL conical flask and obtains in broth bouillon, and broth bouillon is altogether
20mL vibrates after activating for 24 hours in case at 37 DEG C, carries out a series of dilutions with broth bouillon, 1mL bacterium solution is repeatedly taken to move respectively
Enter in 10mL sterile water, dilute 1 times, 2 times, 3 times, 4 times, 5 times, 6 times, 7 times respectively, various concentration bacterium solution is made, it is spare.
(3) preparation of culture medium
Beef extract 3g, peptone 10g, agar 20g are weighed, sodium chloride 5g adds water to be settled to 1000mL, is placed in electromagnetic oven
Upper heating stirring, and adjusting pH with sodium hydroxide is 7.0-7.2, it is spare.
1000mL culture medium is moved to respectively in 2 conical flasks and in 20 test tubes, each conical flask moves into 300mL or so
Culture medium, test tube move into 1/3 culture medium, by the culture dish bandaged and its be placed in steam sterilizer together in 121 DEG C
Sterilize 20min, then the dry 1h of culture dish pours into culture medium in dry culture dish with spare.
(4) preparation of antibacterial agent
The culture medium for preparing 1000mL moves into 6 conical flasks, and 100mL culture medium is added in each conical flask, is placed in steam
Sterilizer is after 121 DEG C of sterilizing 20min, then is separately added into the maceration extract of embodiment 6-11 preparation, spare.
(5) calculating of bacteriostasis rate
According to bacteriostasis rate calculation formula:
In formula: N2Clump count on-blank plate, N1- the clump count being added on the plate of antibacterial agent, η-bacteriostasis rate,
Value is that regular representation has certain inhibition to microorganism, is negative, and indicates the effect for promoting microorganism growth.
5.2, antibacterial experiment
(1) simulated experiment
By the tweezers to have sterilized and gauze, use the gauze for speckling with minute quantity sterile water in mobile phone screen under sterile working
With computor-keyboard double rub surface 3 times.Furthermore it to the mobile phone screen and computor-keyboard region for adopting sample, is prepared with embodiment 8
Maceration extract embrocate back and forth 3 times, make its act on 1min, the gauze of 2 heterogeneities is placed in 10mL sterile water shakes respectively
3min is totally immersed into bacterium in sterile liquid, in the culture medium for then going the bacterium solution even spread of 0.2mL to prepare, 37
Cultivated for 24 hours in DEG C constant incubator, and with not plus the sample of antibacterial agent to apply plate be to compare.Observation is taken out, using method of scoring meter
Number, and calculate bacteriostasis rate.
(2) measurement of bacterium solution optimum diluting multiple
By the bacterium solution (Escherichia coli and bacillus) of the culture medium prepared and various concentration, 3 times, 4 will be diluted
Again, into culture medium, each concentration is coated with 2 and puts down even spread the bacterium solution of 5 times, 6 times, 7 times concentration under sterile working respectively
Its whole is placed in 37 DEG C of constant incubator cultures for 24 hours by plate.As a result observation obtains the Escherichia coli bacteria liquid effect of 4 times of dilution most
Good, the bacillus bacterium solution effect of 6 times of dilution is best, calculates clump count convenient for observation.
(3) measurement (colony counting method) of antibacterial agent property
The antibacterial agent that will have been prepared pours into dry culture dish, after cooling, is separately added into most in superclean bench
The bacterium solution coating of good extension rate uniformly, is inoculated with strain in culture medium, is placed in 37 DEG C of cultures for 24 hours, and with not plus antibacterial agent
Plane plate specimen is control.Observation is taken out, is counted using method of scoring, and calculate bacteriostasis rate.
(4) determination of minimal inhibitory concentration
Anti-microbial property test is carried out using the maceration extract of embodiment 6-11 preparation, cultivates 24 hours observation clump counts, thus
Obtain best antimicrobial concentration.
6, antibacterial experiment results and discussion
6.1, antibacterial agent performance measurement
Simulated experiment, the antibacterial that the maceration extract and sterile water prepared by embodiment 8 makes mobile phone screen, computer keyboard
Comparative experiments obviously can be observed and be counted to get: pass through the mobile phone screen total plate count of maceration extract processing prepared by embodiment 8
N2=30 × 10 ÷ 0.2=1500, N1=0, η=100% passes through the computor-keyboard N of maceration extract processing prepared by embodiment 82=
68 × 10 ÷ 0.2=3400, N1=0, η=100%.
Fig. 7 shows the maceration extract of the preparation of embodiment 8 to the inhibition situation (b) of common bacteria and the inhibition of blank control group
Situation (a) comparison diagram.As seen from the figure, the maceration extract that prepared by embodiment 8 bacterium common for sticking film for mobile phone, computor-keyboard has
Excellent antibiotic rate.
6.2, antibacterial effect of the different formulations concentration to Escherichia coli
Experiment is compared using maceration extract prepared by embodiment 6-11, various concentration antibacterial agent can be obtained to Escherichia coli
Antibacterial effect, to obtain the range of minimal inhibitory concentration, the results are shown in Table 8.
The CTAB of 8 various concentration of table compares the anti-microbial property of Escherichia coli
Fig. 8 show the CTAB of various concentration the anti-microbial property of Escherichia coli is compared (a blank control group, b embodiment 6,
C embodiment 7, d embodiment 8).By table 8 and Fig. 8 it is found that the formula components of embodiment 6-11 are to Gram-negative bacteria Escherichia coli
Anti-microbial property it is very good, and with the increase of antimicrobial agent concentration, the fungistatic effect of Escherichia coli is also gradually increased, anti-
When bacteria suspension concentration is 0.062%, anti-microbial property just has reached 81% or so, and when antimicrobial agent concentration is 0.123%, anti-microbial property is just
92.11% or so is had reached, reaches 100% later.So being for the minimal inhibitory concentration of Gram-negative bacteria Escherichia coli
0.123%~0.245%.
6.3, antibacterial effect of the different formulations concentration antimicrobial agent to bacillus
Experiment is compared using maceration extract prepared by embodiment 6-11, various concentration antibacterial agent can be obtained to bacillus
Antibacterial effect, to obtain the range of minimal inhibitory concentration, the results are shown in Table 9.
The CTAB of 9 various concentration of table compares the anti-microbial property of bacillus
Fig. 9 show the CTAB of various concentration the anti-microbial property of bacillus is compared (a blank control group, b embodiment 6,
C embodiment 7, d embodiment 8).By table 9 and Fig. 9 it is found that the formula components of embodiment 6-11 are non-to the anti-microbial property of bacillus
Chang Hao, and with the increase of antimicrobial agent concentration, the fungistatic effect of bacillus is also gradually increased, is in antimicrobial agent concentration
When 0.062%, anti-microbial property just has reached 74% or so, and when antimicrobial agent concentration is 0.123%, anti-microbial property just has reached 87%
Left and right, reaches 100% later.So being 0.123%~0.245% for the minimal inhibitory concentration of bacillus.
7, conclusion
The experimental results showed that the formula antibacterial agent CTAB is to common bacteria, Gram-negative bacteria Escherichia coli and gram sun
Property bacterium bacillus subtilis all have good antibacterial effect, have excellent broad spectrum antibacterial performance.To Escherichia coli and gemma
The lowest concentration of antimicrobial range of bacillus is 0.123%~0.245%.
The above content is just an example and description of the concept of the present invention, affiliated those skilled in the art
It makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from invention
Design or beyond the scope defined by this claim, be within the scope of protection of the invention.
Claims (6)
1. a kind of portable computer impregnated wipe, is made of substrate and maceration extract, which is characterized in that maceration extract is by following weight proportion
Raw material composition:
2. portable computer impregnated wipe as described in claim 1, which is characterized in that maceration extract by following weight proportion raw material
Composition:
3. portable computer impregnated wipe as claimed in claim 2, which is characterized in that maceration extract by following weight proportion raw material
Composition:
4. the portable computer impregnated wipe as described in claims 1 or 2 or 3, which is characterized in that substrate is non-woven fabrics.
5. a kind of method for preparing portable computer impregnated wipe as claimed in claim 4, which is characterized in that the dipping that will be prepared
Liquid, which is carried on non-woven fabrics and packs, forms portable computer impregnated wipe.
6. method as claimed in claim 5, which is characterized in that first by empgen BB (BS-12), cetyl three
Methyl bromide ammonium (CTAB), sodium benzoate, essence and deionized water are added into stirring container, and heating, is uniformly mixed sterilizing
Maceration extract；Then it is delivered to after non-woven fabrics being cut in paper handkerchief automatic layboy, recycles maceration extract immersion non-woven fabrics, finally wrap
Dress obtains portable computer impregnated wipe product.
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