CN1098795C - Antibacterial cooled-food container - Google Patents
Antibacterial cooled-food container Download PDFInfo
- Publication number
- CN1098795C CN1098795C CN99116924A CN99116924A CN1098795C CN 1098795 C CN1098795 C CN 1098795C CN 99116924 A CN99116924 A CN 99116924A CN 99116924 A CN99116924 A CN 99116924A CN 1098795 C CN1098795 C CN 1098795C
- Authority
- CN
- China
- Prior art keywords
- food
- refrigerator
- bacterium
- antibacterial
- heavy metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to a refrigeration food container having a bacterium resisting function, particularly to a refrigerator (comprising containers for refrigerating food, such as refrigerating cabinets, etc.) The present invention is characterized in that the position which is directly or indirectly in contact with a human body (a hand) or food is provided with a bacterium and rot resisting layer sterilized by the physical principle (method); the refrigeration food container is formed by mixing and agitating 0.1 to 50 wt% of mixture of non heavy metal ions and nontoxic food grade silane coupling agents with plastic raw materials. The present invention has the advantages that the bacterium and rot resisting layer is made of non heavy metal ions and nontoxic food grade silane coupling agents; the temperature resistant grade is more than 400 DEG C; the bacterium inhibiting range is wide; the bacterium inhibiting ratio is more than 50% each hour; the bacterium inhibiting effective period is 20 years; the production technology is simple; the cost is low. The present invention can be widely applied to various refrigerating containers for storing food, such as household refrigerators, refrigerator-freezers, freezers, refrigerating cabinets, food show cases, cool drinking (machines) devices, etc.
Description
The present invention relates to a kind of cooled-food container with antibacterial functions, electric refrigerator (container that comprises chilled foods such as refrigerator-freezer) particularly, one of its feature is: be provided with a kind of antibacterial and mouldproof layer with physical principle (method) sterilization with position that human body (hand) and food directly or indirectly contact, the material of making the antibacterial and mouldproof layer is the silane coupling agent of non-heavy metal ion, nontoxic, food stage.Two of its feature is: the antibacterial and mouldproof layer is mixed with raw materials for plastics production to stir with 0.1～50% weight ratio by non-heavy metal ion, silane coupling agent nontoxic, food stage to be made.
Electric refrigerator brings great convenience for really people's life as the household electrical appliance that are used to store refrigeration and frozen food of a kind of family indispensability, has improved people's quality of life widely.But, relevant expert's analytic statistics result shows that refrigerator is in long-term use, and people's access food great majority are without any disinfecting process, and often deposit raw and cold food, this germ of just unavoidably food surface and human body being carried is along with food is put into refrigerator.In addition, because with the humid air in the reefer, nutritional sufficiency has objectively become the places that grows and breed of some cold-resistant germs.
Detect according to relevant department, in some fruit and vegetable box in average every sq fungal spore reach more than 1000 unexpectedly, more than 300 fungal spore arranged, and the fungal species of being found kind surplus in the of 10 nearly in every sq on cabinet wall.
When people eaten be stored in the food that is subjected to bacterial contamination in the refrigerator after, symptom such as the stomach inflammation usually can occur, have sore throat, Here it is so-called " refrigerator syndrome ".Along with the progress of development of times and society, people are more and more higher to the requirement of quality of life, therefore avoid " refrigerator syndrome ", use problems such as " refrigerators that has antibiotic (antibacterial) function " also just to mention agenda.
On the antibiotic history of the mankind, people had once taked various methods, as adopt means such as hydrogen peroxide, alcohol, ozone, ultraviolet ray, microwave, high pressure steam to carry out sterilization, but the timeliness that the body surface after the sterilization keeps clean is short, so not only uneconomical but also inconvenient.Thereby the researchist considers antiseptic is added in the plastic components, makes in its moving air that both can kill contact with it or the bacterium of human body institute contact site, makes parts have the ability of permanent antibiotic, sterilization again.
Just as, relevant article is described, because electric refrigerator uses the particularity of internal and external environment, an antibiotic world-famous puzzle that becomes in household appliances of electric refrigerator (plastic material).
In long-term practice, expert's door finds to have material antibiotic, bactericidal action can be divided into natural, organic and inorganic three big series substantially.The restriction of natural antiseptic because of being subjected to safety and producing, kind is few, as yet the not marketization.The research of household electrical appliances plastic antimicrobial agent both at home and abroad at present mainly launches around organic antibacterial agent and inorganic antiseptic.
According to external, in Japan, the IONPURE of complex compound, Kanebo and stoneman nitre Co., Ltd. of the argentiferous of the argentiferous phosphate antibiosis agent of the argentiferous zeolite antibacterial agent of product river fuel (strain) exploitation, East Asia synthetic (strain) exploitation and Matsushita Electric Industries's (strain) exploitation, the major company that these are internationally famous, effective antimicrobial component of antiseptic all is with metallic ions such as silver, zinc.When this series products was used in coating or plastic product, antibacterial effect is (antibacterial effect was relevant with the consumption of metallic ion) better.And best with the antibacterial effect of silver ion, but consumption surpasses at 1～3% o'clock, is difficult for keeping the quality of existing product, and cost is also very high, easier variable color in high temperature, antibacterial effect also obviously descends.
In addition, at collection analysis, relatively the relevant antimicrobial technology data that mainly provides by the U.S., Japan and domestic R﹠D institution etc., sample are provided after.Learn that except that individual other one, two all the other most of portions are to be the heavy metal ion anti-biotic material of representative with money base (or zinc-base).
Simultaneously, from retrieving and the antibiotic relevant patent documentation of plastics, as number of patent application: 95118397.4 " preparation methods that contain bactericidal agent in the polyethylene product ", number of patent application: 96106368.8 " preparation method of antibacterial polypropylene product " and number of patent applications: 97121118.3 " bactericidal compositions ", number of patent application: 97123082.X " antibiotic microwave oven " wait.
In the embodiment of these patents, if any selecting for use antibacterial metal salts: silver nitrate, zinc sulphate, zinc nitrate, trbasic zinc phosphate, zinc acetate, zinc perchlorate, zinc oxide etc. all by being purchased product on the market.
Example adds zinc nitrate in carrier contains the zeolite powder of sodium.When carrying out ion exchange: the sodium in zinc nitrate ion and the carrier, potassium plasma are replaced mutually, and antibacterial metal ions enters in the carrier, makes carrier have antibacterial functions.
Their fungi-proofs must material be the inorganic metal antiseptic.
In addition, more approaching 1998 the 5th phases " additives for plastics " magazine that has is delivered, by being entitled as that engineering plastics national project research center Lee Bi Zhong etc. writes: " application in plastics of plastic antimicrobial agent KHFS-Z and masterbatch thereof " paper.Article has disclosed the take the lead in fact used of its achievement in research in household appliances such as Haier Group's refrigerator, refrigerator.Simultaneously, brief summary part at paper, the author is with regard to achievement in research, made high level overview again: " by basic research to the antibiotic property of antibiotic plastic and tame electrical article thereof, antibiotic plastic physical and mechanical properties, processing behavior, weather stain performance; and to the control of additive and impurity and engineering process in antiseptic and the antibacterial plastic concentrate preparation process, the novel plastic antiseptic that has broad-spectrum high-efficiency and low-toxicity, is applicable to plastic working and use has been developed in engineering plastics national project research center ....”
From analyzing as can be known, above-mentioned relevant patent documentation, technical materials all do not meet about the relevant laws of refrigerator material, the regulation of rules.
As everyone knows, domestic refrigerator (comprising frostless deep freezer, frostless household refrigerator-freezer, frostless frozen food hutch and frostless food freezer and foodstuffs refrigerator, food refrigerator, diffusion absorbing deep freezer, diffusion absorbing household refrigerator-freezer) mainly is used for storing chilled food or frozen food.
According to standard GB/T80591-1995 " family expenses refrigerating appliance deep freezer " 5: technical requirements: 5.5: structure and material performance; 5.5.5: two of refrigerator inside material regulation: do not answer contaminated food products when the refrigerator inside material contacts with store food, also should not send toxic substance to food, material should be able to moisture resistance gas and the effect of food acid.
Same reason also has identical regulation according to standard GB/T80592-1995 " family expenses refrigerating appliance household refrigerator-freezer ", GB/T80593-1995 " family expenses refrigerating appliance household freezer ", GB/T80594-93 " the frostless deep freezer of family expenses refrigerating appliance, frostless household refrigerator-freezer, frostless frozen food hutch and frostless food freezer " etc. to the refrigerator inside material.
In sum, about the legal notion of refrigerator inside material: do not answer contaminated food products when the refrigerator inside material contacts with store food, should not send toxic substance to food yet ...And, in fact, in national electric refrigerator manufacturing enterprise, abide by the requirement of " food hygiene law " invariably, carry out material buying, make electric refrigerator.As above water chestnut electric refrigerator etc. consistently by " food hygiene law " requirement, carries out buying, test and the examination of material for over ten years.
According to the 6th section of the 8th article of the chapter 2 of [Food Hygiene Law of the People's Republic of China]: store, container package, tool equipment and the condition of transportation and loading and unloading food must be safe, harmless, keep clean, and prevent the regulation of food pollution.
According to patent documentation and technical materials, people can further recognize at the plastics antibiosis because the difference of know-why (method) is presented as two kinds of different antimicrobial technology routes promptly: chemical type and physical.And in fact, generally be chemical type with the heavy metal ion fungi-proof.
The antibiotic mechanism of relevant chemical type, the detailed description of 1999 the 3rd phases " comsuption guide ", 68 pages of just relevant zinc-bases (ion) antiseptic sterilization: " recently; each and every one endangers the bacteriums in the refrigerator world certainly; in all public arenas; talk about a topic-zinc (Zn) metallic ion; their stature is very little; but skill is strong and vigorous, they have the cell cinclides of unified battle plan-by bacterium to penetrate in the bacterial body, living matter-protein generation chemical reaction with bacterium, changed the eucaryotic cell structure of bacterium, made bacterium schizogamy again.And Zn main forces ' highly disciplined ', their a collection of setting out in the refrigerator wall, and keep being evenly distributed on the refrigerator wall surface.Though this operation is the mode one to one of perishing together, the reserve of Zn main forces obviously has overwhelming superiority, according to incompletely statistics, and the reserve force that every refrigerator world all keeps protract war in 15 years in inside." sketch the contours of chemical type fungi-proof stripping property by vivid describing here, promptly " zinc ion comes out to perish together one to one with bacterium from refrigerator wall (plastics) surface is a collection of." if this section literal promptly is called slowly-releasing with special technical term.
Learn that from general chemistry or with relevant domain-specific knowledges such as disinfecting, sterilization, food antiseptics heavy metal (proportion greater than 4.5 metal) and cmpd thereof are to all toxic effect of germ.Mercury, copper, silver, lead (zinc
2+, cadmium
2+, mercury
2+Cation is strong to the sucking action of electronics, and complex compound has very strong covalency, has the toxicology meaning.) and its esters, all be the bactericidal agent that application force is very strong and application is wider.The bactericidal effect of heavy metal is a heavy metal ion (SH) to be combined, enzyme is lost activity with sulfydryl in the zymoprotein.In addition, the also easy and cells of microorganisms combined with protein of heavy metal ion makes protein denaturation, and causes microbial death.
" metal is deletrious in general ", its toxicity is relevant with the metallo-electrochemical properties.In 85 kinds of metallic elements, the scientific research personnel has worked out metal genotoxic potential sequence list according to the combined situation of metal boiling point and inferior ionization voltage, preceding 20 kinds of metals of genotoxic potential maximum wherein, coming fwd has: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. silver of manganese of zinc of osmium of antimony of thallium of aluminium of lead of cadmium of mercury; What come the back is
Nickel
Gold
Tin
Bismuth
Copper
Iron
Palladium
Vanadium
Germanium
Cobalt.The affinity that comes fwd and human body is bigger, enter human body after, be absorbed very soon; And come the metal of back, when surpassing the somagenic need amount, do not excrete with regard to not being absorbed.
As is generally known in the use of refrigerator, article, food, food smell and the result who loses bright, rotten food cross-infection because of being refrigerated can produce a kind of unpleasant foul smell, its main chemical compositions is hydrogen sulphide, ammonia one class.
The hydrogen sulphide chemical property is active, can generate soluble-salt with the alkali metal ion effect, generates insoluble salt with the heavy metal ion effect, as generating insoluble black silver sulfide (or zinc sulphide) precipitation with silver or zinc ion action.And the more important thing is it and be antiseptic generation chemical reaction that the silver sulfide of its generation chemicals pledges such as (or zinc sulphide) is harmful with silver ion (or zinc ion).Meanwhile, the silver ion behind the chemical combination (or zinc ion) lose activity (antibacterial ability).In view of the above, refrigerator in actual use, how on earth its antibacterial effect is a very big question mark.
The objective of the invention is to avoid above-mentioned prior art, use particularly that chemical type antimicrobial technology route exists such as the deficiencies such as antibiotic validity problem in material and the actual use of refrigerator, and a kind of refrigerator with antibiotic (antibacterial) function is proposed.
Purpose of the present invention can reach by following measure: the frosting at the position that directly or indirectly contacts with human body (hand) and food such as refrigerator handle (handle), shelf, inner bag and annex etc. is provided with a kind of anti-mould proof layer with physical principle (method) sterilization, and the manufacturing materials of antibacterial and mouldproof layer adopts the silane coupling agent of non-heavy metal ion, nontoxic, food stage.The antibacterial and mouldproof layer mixes together with the non-heavy metal ion of 0.1～50% weight ratio, silane coupling agent and raw materials for plastics production nontoxic, food stage.
Description of drawings
Accompanying drawing 1, be antibacterial and mouldproof layer scheme drawing of the present invention.
Accompanying drawing 2, be physical antibacterial mechanisms figure of the present invention.
The present invention is described further below in conjunction with (accompanying drawing) embodiment.
In the accompanying drawing 1, following title parts surface all is provided with physical principle (method) sterilization, adopts with the non-heavy metal ion of 0.5～2.5% weight (the best) ratio, silane coupling agent nontoxic, food stage and mixes the antibacterial and mouldproof layer that stirs making with raw materials for plastics production.
1, the upper and lower every strip of paper used for sealing of refrigerator.
2, refrigerating-chamber door shelf.
3, door inner bag.
4, reefer egg frame.
5, reefer bottle stand.
6, upper and lower door handle.
7, case inner bag.
8, reefer upper spacer.
9, crisper top board.
10, reefer shelf.
11, air channel panel
12, reefer, crisper heat regulator.
A kind of (physical) antimicrobial technology route of innovation is based on the following fact:
As everyone knows, there is the general biological protein that all has equally in the bacterium as germ in its body.The same with other protein it form by each seed amino acid, amino acid is two property materials, having different electric charges under the situation of different potential of hydrogen is positive negative electric field.Around this principle, therefore, just can bacterium progressively be lost activity, thereby reach antibacterial and purpose sterilization as long as in anti-biotic material, form a gravitational field (its ranging coverage is in 0.5 millimeter) that has certain intensity.Around this principle, by in plastics, forming a positive negative electric field, make bacterium and frosting produce bonding action, thereby reach not only antibiotic but also harmless requirement.
Accompanying drawing 2A
(1)The plastics (opposite sex) that had negative electric field when a live bacteria are inhaled and firm bonding mutually.
Accompanying drawing 2A
(2)Because bacterium bacterium (cell liquid) slurries under the effect of bonding force begin to ooze out.
Accompanying drawing 2A
(3)Because the cell slurries in the bacterial body flow to end, and lose electric charge, bacterium also loses activity.
Annotate: because the charge property difference that different bacteriums has, therefore antibiotic series material of the present invention has the difference electric charge of (on the contrary) equally.
Antibacterial effect sees attached list one, two.
The present invention has following advantage compared to existing technology:
1, be provided with a kind of with physical principle (side with position that human body (hand) and food directly or indirectly contact Method) the antibacterial and mouldproof layer of sterilization, the material of antibacterial and mouldproof layer are non-heavy metal ion, nontoxic, food stage Silane coupler.
2, the anti-biotic material temperature resistant grade is more than 400 ℃.
3, can suppress to have the germ of positive charge and negative charge.
4, antibacterial fast, bacteriostasis rate was greater than more than 50% in one hour.
5, antibacterial subject word is 20 years.
6, production technology is simple, and cost is low.
The present invention can be widely used in the Refrigerating container of various preserved food products, as utensils such as domestic freezers, household refrigerator-freezer, household freezer, refrigerator-freezer, food show-case and Cold Drinking Water (machine) devices.
Subordinate list:
STF-A (ABS) antibacterial and mouldproof catch 1.5% addition (table one)
STF-A (PVC) antibacterial and mouldproof gasket 1.5% addition (table two)
| Bacterial strain | 1 hour bacteriostasis rate (%) of jolting | Clump count during jolting 0 (cfu/ml) |
| Large intestine bar (8099) | 69.48 | 9.1×10 5 |
| Staphylococcus aureus (ATCC 6538) | 71.65 | 2.1×10 5 |
| Intestines class salmonella | 68.88 | 7.2×10 5 |
| Candida albicans (ATCC 10231) | 51.73 | 1.3×10 5 |
| Bacterial strain | 1 hour bacteriostasis rate (%) of jolting | Clump count during jolting 0 (cfu/ml) |
| Large intestine bar (8099) | 73.88 | 3.7×10 5 |
| Staphylococcus aureus (ATCC 6538) | 95.57 | 3.3×10 5 |
| Candida albicans (ATCC 10231) | 67.36 | 3.8×10 5 |
Claims (2)
1, a kind of cooled-food container with antibacterial functions, electric refrigerator (comprising cooled-food containers such as refrigerator-freezer) particularly, it is characterized in that: be provided with a kind of antibacterial and mouldproof layer with physical principle (method) sterilization with position that human body (hand) and food directly or indirectly contact, the material of making the antibacterial and mouldproof layer is the silane coupling agent of non-heavy metal ion, nontoxic, food stage.
2, a kind of cooled-food container with antibacterial functions as claimed in claim 1 is characterized in that: the antibacterial and mouldproof layer is mixed with raw materials for plastics production to stir with 0.1～50% weight ratio by non-heavy metal ion, silane coupling agent nontoxic, food stage to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116924A CN1098795C (en) | 1999-09-29 | 1999-09-29 | Antibacterial cooled-food container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116924A CN1098795C (en) | 1999-09-29 | 1999-09-29 | Antibacterial cooled-food container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1250015A CN1250015A (en) | 2000-04-12 |
| CN1098795C true CN1098795C (en) | 2003-01-15 |
Family
ID=5279589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99116924A Expired - Fee Related CN1098795C (en) | 1999-09-29 | 1999-09-29 | Antibacterial cooled-food container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1098795C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3993067B2 (en) * | 2002-10-23 | 2007-10-17 | シャープ株式会社 | refrigerator |
| DE102012221248A1 (en) * | 2012-11-21 | 2014-05-22 | BSH Bosch und Siemens Hausgeräte GmbH | The refrigerator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205414U (en) * | 1985-12-17 | 1986-09-24 | 阎明 | Food conlainer |
-
1999
- 1999-09-29 CN CN99116924A patent/CN1098795C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205414U (en) * | 1985-12-17 | 1986-09-24 | 阎明 | Food conlainer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1250015A (en) | 2000-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lamas et al. | Salmonella and Campylobacter biofilm formation: A comparative assessment from farm to fork | |
| Ongeng et al. | The efficacy of electrolysed oxidising water for inactivating spoilage microorganisms in process water and on minimally processed vegetables | |
| CN1374003A (en) | Biological fruit and vegetable preservative | |
| CN102357255A (en) | Actively adsorbing sterilization and smell removing bag | |
| El-Dengawy et al. | Chemical and microbiological evaluation of some fish products samples | |
| CN1098795C (en) | Antibacterial cooled-food container | |
| Grounta et al. | Survival of food-borne pathogens on natural black table olives after post-processing contamination | |
| KR20150134729A (en) | Antibiotic Plastic | |
| CN101717541B (en) | Moisture-preserving and antibacterial preservative film and preparation method thereof | |
| KR20170011331A (en) | A composition for producing salted vegetable comprising phytic acid, and a method for producing salted vegetable using the same | |
| US20150030532A1 (en) | Antimicrobial material comprising a metal ion charged on synthesized zeolite | |
| Fletcher | Bacterial metabolism in biofilms | |
| KR101926775B1 (en) | Animal feed additives having rare earth element and manufacturing method thereof | |
| CN102578682B (en) | Antistaling agent for soup food and application method thereof | |
| CN110527651A (en) | One plant of lactobacillus plantarum for producing a variety of broad-spectrum antiseptic metabolins and its application | |
| Wei | The effect of temperature on microorganisms growth rate | |
| Raja et al. | Screening of bacterial compost from spoiled vegetables and fruits and their physiochemical characterization. | |
| Pasala et al. | Effect of water probiotic in water quality maintenance and growth of rohu (Labeo rohita) fingerlings | |
| Palmer et al. | Potential for growth of E. coli in aerobic compost extract | |
| KR101505466B1 (en) | Method of preparing sterilization composition having improved microbicidal activity and sterilization method using the composition | |
| CN103518756A (en) | Single-double strand mixed quaternary ammonium salt composite triclocarban disinfectant and preparation method thereof | |
| FRANSEN et al. | Utilization of fermented flocculated poultry sludge as a feed constituent for pigs | |
| CN2665634Y (en) | Refrigerator with antibiotic materials | |
| Palencia et al. | Fungi-bacterium interactions: Helicobacter pylori-Candida albicans | |
| CN106942358A (en) | A kind of preservation method of fresh-cut coriander |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |