CN104015238A - Mildew-proof retreatment method of mildewed bamboo chips - Google Patents
Mildew-proof retreatment method of mildewed bamboo chips Download PDFInfo
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- CN104015238A CN104015238A CN201410282143.6A CN201410282143A CN104015238A CN 104015238 A CN104015238 A CN 104015238A CN 201410282143 A CN201410282143 A CN 201410282143A CN 104015238 A CN104015238 A CN 104015238A
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Abstract
The invention discloses a mildew-proof retreatment method of mildewed bamboo chips. The method comprises the following steps: sorting the mildewed bamboo chips, sterilizing, culturing bamboo nourishment consumption bacteria, inoculating the bamboo nourishment consumption bacteria, sterilizing the bamboo nourishment consumption bacteria again and bleaching mildewed bamboos. The bamboo mildew resistance test (a standard detection method (a lab method) of the sterilizing agent on mildew and color change influence of undried bamboo) performed according to ASTM:D4445-03 proves that: after the inactivated mildewed bamboos are treated by the bamboo nourishment consumption bacteria, the beautiful natural color of the bamboos can be restored through the bamboo bleaching technology. The mildew resistance is obviously improved, and mildew growth in the test cycle of 30 days is avoided.
Description
Technical field
The present invention is specifically related to a kind of mildew-proof treatment method again that dyes mould bamboo chip.
Background technology
Bamboo wood acellular wall material (starch, reduced sugar etc.) content is higher, sufficient nutriment is provided can to the mould of numerous species, makes bamboo wood and goods thereof in storing, processing and use procedure, very easily goes mouldy, and affects its quality and use value.The mao bamboon main in south adds building site, and the annual feature that ubiquity temperature in May～September is high, air humidity is large, is particularly suitable for the growth of various moulds.House is produced in production at bamboo product, deposits the improper moldy metamorphism phenomenon causing can be found everywhere because of bamboo chip, causes very large economic loss to bamboo product enterprise.The application's patent, for this ubiquitous phenomenon, is selected just to have started the mouldy bamboo wood of microbiological contamination, sends into hothouse spray and steams processing, kills whole moulds; Recycle my achievement in research: within the regular hour, specific mould can consume more starch and reduced sugar than general mould, and the principle that can not cause the physical and mechanical property of bamboo wood own obviously to decline.Preparation Aspergillus flavus liquid, is evenly sprayed at bamboo material surface, after 20 days, will dye mould bamboo wood and send into hothouse spray steaming processing, kills whole moulds.Again bamboo wood is sent into Bellmer and soaked, recover the natural true qualities of bamboo wood beauty.This technology comprises dyes the sorting, sterilization of mould bamboo chip, effectively cultivation, effectively inoculation, cultivation, the sterilization and dye the multinomial technology composition such as bleaching technology of mould bamboo wood again of bacterium of bacterium.According to ASTM:D4445-03(bactericide, unseasoned timber is gone mouldy and look becomes the bamboo wood fungus resistance verification experimental verification that carries out of standard detecting method (laboratory method) of impact: go out and dye mould bamboo wood bleaching process again after dying in advance Aspergillus flavus and processing after poison, its Antimould power significantly improves, in the test period of 30 days without fungus growth.
Summary of the invention
The object of the present invention is to provide a kind of mildew-proof treatment method again that dyes mould bamboo chip.The method adds building site summer because temperature is high, air humidity is large for the main mao bamboon in south, is particularly suitable for various fungus growths, causes the problem of very large economic loss to bamboo product enterprise.Utilize within the regular hour, specific mould can consume more starch and reduced sugar than general mould, and the principle that can not cause the physical and mechanical property of bamboo wood own obviously to decline.Select just to have started the mouldy bamboo wood of microbiological contamination, send into hothouse spray and steam processing, kill whole moulds; Preparation Aspergillus flavus liquid, is evenly sprayed at bamboo material surface, after 20 days, will dye mould bamboo wood and send into hothouse spray steaming processing, kills whole moulds.Again bamboo wood is sent into Bellmer and soaked, recover the natural true qualities of bamboo wood beauty.
The invention provides a kind of mildew-proof treatment method again that dyes mould bamboo chip, the method comprises the steps:
(1) dye mould bamboo chip and carry out necessary classification collecting from bamboo processing factory come whole, remove the serious rotten rotten mould bamboo chip that dyes;
(2) the mould bamboo chip that dyes having sorted is sent in steam carbonization tank and carried out high temperature sterilization, 110～150 DEG C of carburizing temperatures, carbonization pressure 0.1～0.5MPa, carbonization time 20 minutes～1 hour;
(3) by completing the mould bamboo chip of dying of high temperature sterilization technique, to send into dry kiln dry, 70～110 DEG C of baking temperatures, 12～48 hours drying times, dry after the moisture control of bamboo chip 10～20%, for subsequent use;
(4) get 24 grams of potato glucose culture mediums and 15～20 grams of agar pack in 2000 milliliters of vials, add 1000 ml distilled waters, after stirring, put into steam high-temperature sterilization box and carry out sterilization treatment; After 1～2 hour, take out, pour in blank, after cooling 5～15 minutes, after nutrient solution is solid shape, covers cover plate and put into incubator, for subsequent use;
(5) check the situation of solid medium in incubator blank every day, as found, the culture medium in blank has miscellaneous bacteria to infect, and picks and abandons immediately;
(6) inoculation Aspergillus flavus (
aspergillus flavus) bacterial classification, utilization connects acicula and connects bacterium to the culture medium in blank respectively, completes to connect after bacterium is worked blank is put into incubator, and take out the growing state of observing Aspergillus flavus every day, and the blank that finds that there is miscellaneous bacteria infection must pick and abandon;
(7) until the mould bacterial plaque area of Aspergillus flavus account for whole blank culture medium area 60～80% after, take out Aspergillus flavus blank, pouring stainless steel pulverizing machine into pulverizes, in mass ratio for the ratio of Aspergillus flavus: distilled water=1:100 adds distilled water, modulation Aspergillus flavus liquid, after mixing well, pack in the reagent bottle of manual pesticide sprayer, for subsequent use;
(8) bamboo chip of drying processing in step 3 is fitly placed in metal frame, metal frame extreme lower position, apart from the height 10-15cm on ground, is bamboo chip: the ratio of Aspergillus flavus liquid=1000:1 is evenly sprayed at the surface of bamboo chip with manual pesticide sprayer in mass ratio; Complete after sprinkling work and with large stretch of Polypropylence Sheet, whole bamboo chip heap is wrapped up immediately, and by clamp;
(9) observe weekly the situations of growing of Aspergillus flavus in 2 whole bamboo chips heaps, as find moisture overdrying in bamboo chip heap, open bamboo chip and pile inner tap water spray head, in bamboo chip heap, spray water, as found, the moisture in bamboo chip heap is excessively wet, open the large stretch of Polypropylence Sheet that is wrapped in bamboo chip out-pile, carry out suitable ventilation;
(10) through 20 days, open large stretch of Polypropylence Sheet of bamboo chip, thoroughly ventilate after 1～2 day, send into high temperature sterilization in carbonization tank, 120 DEG C of carburizing temperatures, carbonization pressure 0.2～0.4MPa, carbonization time 1～2 hour;
(11) after the carbonization high temperature sterilization of bamboo chip completing steps 10, send in the Eusol of 1～10% concentration and flood 1～3 hour, take out for subsequent use;
(12) in cooker, prepare the acetum of 1～10% concentration, add the bamboo chip of step 11 after stirring, start boiling after closing the tank mouth of cooker, boiling was taken out bamboo chip after 10～50 minutes, with clear water washing, completed the bleaching process of bamboo chip;
(13) bleaching bamboo chip is sent into lumber kiln and be dried, 80～100 DEG C of baking temperatures, 24～48 hours drying times, the moisture control of dry rear bamboo chip, 6～10%, can be used as the bamboo materials'use of conventional bamboo product.
Described step 1 is the bamboo chip that seriously goes mouldy of rejecting without any actual value for dying the object that mould bamboo chip classifies.
In described step 2 in order to be undertaken fully and completely dying mould bamboo chip high temperature sterilization, dye mould bamboo chip and must not adopt binding wrapping, must will dye mould bamboo chip stay aligned, bamboo chip adopts metal side tube to use as filler strip between layers, never allows bamboo chip to occur bridging phenomenon.
In described step 3, in order to ensure that dried bamboo chip moisture control is 10～20%, can adopt if desired spray to steam the mode of processing increases the final moisture content of bamboo chip.
The nutrient solution preparing in described step 4 is in the sterilization process of high-temp steam sterilizing equipment, and the lid of 2000 milliliters of vials can not cover in sterilization process, prevent vial in heating process because of overheated splash to rise break.
In described step 5, check the microbiological contamination situation of solid medium in incubator blank every day, total inspection number of days is 3 days.
The Aspergillus flavus of inoculation in described step 6 (
aspergillus flavus) bacterial classification provided by raw ring institute of the Chinese Academy of Forestry.
The number of plies of placing the metal frame of bamboo cane in described step 8 forms by 3～10 layers, and every layer adopts 3～5mm corrosion resistant plate to be welded and fixed, and the densely covered diameter 3cm circular hole in corrosion resistant plate surface, prevents that water droplet from condensing at bamboo chip and corrosion resistant plate contact site.
The operating personnel that spray Aspergillus flavus liquid in described step 8 must wear professional biochemistry clothes, in the mistake Cheng Qian of spraying inoculation Aspergillus flavus, must carry out whole body sterilization, prevent that other miscellaneous bacteria from bringing bamboo chip into.
In described step 11, by the Eusol of bamboo chip dipping 1～10% concentration, must bamboo chip be immersed in Eusol weighting material completely.
The invention has the advantages that: a kind of mildew-proof treatment method again that dyes mould bamboo chip is provided.First the method sorts the mould bamboo chip that dyes of bamboo processing enterprise, rejects those bamboo chips that seriously goes mouldy without any actual value, and the not serious bamboo chip that goes mouldy is carried out to high-temperature sterilization; Utilize within the regular hour, Aspergillus flavus can consume than general mould the principle of more starch and reduced sugar, and Aspergillus flavus is seeded on bamboo chip, impels starch and the content of reducing sugar fast-descending of bamboo chip inside, reaches desirable anti-mold effect.Inoculation Aspergillus flavus, after 20 days, adopts the mode of bleaching to remove the mould bacterial plaque of bamboo material surface dark color, recovers the color and luster of bamboo material surface beauty.
Detailed description of the invention
embodiment 1
Concrete steps are:
(1) dye mould bamboo chip and carry out necessary classification collecting from bamboo processing factory come whole, remove the serious rotten rotten mould bamboo chip that dyes;
(2) the mould bamboo chip that dyes having sorted is sent in steam carbonization tank and carried out high temperature sterilization, 150 DEG C of carburizing temperatures, carbonization pressure 0.4MPa, carbonization time 30min;
(3) by completing the mould bamboo chip of dying of high temperature sterilization technique, to send into lumber kiln dry, 1000 DEG C of baking temperatures, 36 hours drying times, dry after the moisture control of bamboo chip 15%, for subsequent use;
(4) get 24 grams of potato glucose culture mediums and 20 grams of agar pack in 2000 milliliters of vials, add 1000 ml distilled waters, after stirring, put into Harvey steam high-temperature sterilization box and carry out sterilization treatment; After 2 hours, take out, pour in blank, after cooling 10 minutes, after nutrient solution is solid shape, covers cover plate and put into incubator, for subsequent use;
(5) check the situation of solid medium in incubator blank every day, as found, the culture medium in blank has miscellaneous bacteria to infect, and picks and abandons immediately;
(6) inoculation Aspergillus flavus (
aspergillus flavus) bacterial classification, utilization connects acicula and connects bacterium to the culture medium in blank respectively, completes to connect after bacterium is worked blank is put into incubator, and take out the growing state of observing Aspergillus flavus every day, and the blank that finds that there is miscellaneous bacteria infection must pick and abandon;
(7) until the mould bacterial plaque area of Aspergillus flavus develop into account for whole blank culture medium area 60～80% after, take out Aspergillus flavus blank, pouring stainless steel pulverizing machine into pulverizes, in mass ratio for the ratio of Aspergillus flavus: distilled water=1:100 adds distilled water, modulation Aspergillus flavus liquid, after mixing well, pack in the reagent bottle of manual pesticide sprayer, for subsequent use;
(8) bamboo chip of drying processing in step 3 is fitly placed in metal frame, metal frame extreme lower position is greater than 10cm apart from the height on ground, is bamboo chip in mass ratio: the ratio of Aspergillus flavus liquid=1000:1 is evenly sprayed at the surface of bamboo chip with manual pesticide sprayer; Complete after sprinkling work and with large stretch of Polypropylence Sheet, whole bamboo chip heap is wrapped up immediately, and by clamp;
(9) observe weekly the situations of growing of Aspergillus flavus in 2 whole bamboo chips heaps, as find moisture overdrying in bamboo chip heap, open bamboo chip and pile inner tap water spray head, in bamboo chip heap, spray water, as found, the moisture in bamboo chip heap is excessively wet, open the large stretch of Polypropylence Sheet that is wrapped in bamboo chip out-pile, carry out suitable ventilation;
(10) through 20 days, open large stretch of Polypropylence Sheet of bamboo chip, thoroughly ventilate after 2 days, send into high temperature sterilization in carbonization tank, 120 DEG C of carburizing temperatures, carbonization pressure 0.4MPa, carbonization time 2 hours;
(11) after the carbonization high temperature sterilization of bamboo chip completing steps 10, send in the Eusol of 5% concentration and flood 2 hours, take out for subsequent use;
(12) in cooker, prepare the acetum of 5% concentration, add the bamboo chip of step 11 after stirring, start boiling after closing the tank mouth of cooker, boiling was taken out bamboo chip after 30 minutes, with clear water washing, completed the bleaching process of bamboo chip;
(13) bleaching bamboo chip is sent into lumber kiln and be dried, 100 DEG C of baking temperatures, 36 hours drying times, the moisture control of dry rear bamboo chip, 6～10%, can be used as the bamboo materials'use of conventional bamboo product.
Preferably, described step 1 is the bamboo chip that seriously goes mouldy of rejecting without any actual value for dying the object that mould bamboo chip classifies.
Preferably, in described step 2, in order being undertaken fully and completely dying mould bamboo chip high temperature sterilization, to dye mould bamboo chip and must not adopt binding wrapping, must will dye mould bamboo chip stay aligned, bamboo chip adopts metal side tube to use as filler strip between layers, never allows bamboo chip to occur bridging phenomenon.
Preferably, in described step 3, in order to ensure that dried bamboo chip moisture control is 15%, can adopt if desired spray to steam the mode of processing increases the final moisture content of bamboo chip.
Preferably, the nutrient solution preparing in described step 4 is in the sterilization process of Harvey (high-temp steam sterilizing equipment) equipment, the lid of 2000 milliliters of vials can not cover in sterilization process, prevent vial in heating process because of overheated splash to rise break.
Preferably, in described step 5, check the microbiological contamination situation of solid medium in incubator blank every day, check that number of days is 3 days.
Preferably, in described step 6 inoculation Aspergillus flavus (
aspergillus flavus) bacterial classification provided by raw ring institute of the Chinese Academy of Forestry.
Preferably, the number of plies of placing the metal frame of bamboo cane in described step 8 forms by 3～10 layers, and every layer adopts 3～5mm corrosion resistant plate to be welded and fixed, and the densely covered diameter 3cm circular hole in corrosion resistant plate surface, prevents that water droplet from condensing at bamboo chip and corrosion resistant plate contact site.
Preferably, the operating personnel that spray Aspergillus flavus liquid in described step 8 must wear professional biochemistry clothes, in the Cheng Qian of crossing of spraying inoculation Aspergillus flavus, must carry out whole body sterilization, prevent from bringing other miscellaneous bacteria into bamboo chip.
Preferably, in described step 11, bamboo chip is flooded in the Eusol of 5% concentration, must bamboo chip is immersed in Eusol weighting material completely.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. a mildew-proof treatment method again that dyes mould bamboo chip, is characterized in that, comprises the steps:
(1) dye mould bamboo chip and carry out necessary classification collecting from bamboo processing factory come whole, remove the serious rotten rotten mould bamboo chip that dyes;
(2) the mould bamboo chip that dyes having sorted is sent in steam carbonization tank and carried out high temperature sterilization, 110～150 DEG C of carburizing temperatures, carbonization pressure 0.1～0.5MPa, carbonization time 20 minutes～1 hour;
(3) by completing the mould bamboo chip of dying of high temperature sterilization technique, to send into dry kiln dry, 70～110 DEG C of baking temperatures, 12～48 hours drying times, dry after the moisture control of bamboo chip 10～20%, for subsequent use;
(4) get 24 grams of potato glucose culture mediums and 15～20 grams of agar pack in 2000 milliliters of vials, add 1000 ml distilled waters, after stirring, put into steam high-temperature sterilization box and carry out sterilization treatment; After 1～2 hour, take out, pour in blank, cooling 5～15 minutes, after nutrient solution is solid shape, covers cover plate and put into incubator, for subsequent use;
(5) check the situation of solid medium in incubator blank every day, as found, the culture medium in blank has miscellaneous bacteria to infect, and picks and abandons immediately;
(6) inoculation Aspergillus flavus (
aspergillus flavus) bacterial classification, utilization connects acicula and connects bacterium to the culture medium in blank respectively, completes to connect after bacterium is worked blank is put into incubator, and take out the growing state of observing Aspergillus flavus every day, and the blank that finds that there is miscellaneous bacteria infection must pick and abandon;
(7) until the mould bacterial plaque area of Aspergillus flavus account for whole blank culture medium area 60～80% after, take out Aspergillus flavus blank, pouring stainless steel pulverizing machine into pulverizes, in mass ratio for the ratio of Aspergillus flavus: distilled water=1:100 adds distilled water, modulation Aspergillus flavus liquid, after mixing well, pack in the reagent bottle of manual pesticide sprayer, for subsequent use;
(8) bamboo chip of drying processing in step 3 is fitly placed in metal frame, metal frame extreme lower position at 10-15cm, is bamboo chip: the ratio of Aspergillus flavus liquid=1000:1 is evenly sprayed at the surface of bamboo chip with manual pesticide sprayer apart from the height on ground in mass ratio; Complete after sprinkling work and with large stretch of Polypropylence Sheet, whole bamboo chip heap is wrapped up immediately, and by clamp;
(9) observe weekly the situations of growing of Aspergillus flavus in 2 whole bamboo chips heaps, as moisture overdrying in bamboo chip heap, open bamboo chip and pile inner tap water spray head, to water spray in bamboo chip heap; As excessively wet in the moisture in bamboo chip heap, open the large stretch of Polypropylence Sheet that is wrapped in bamboo chip out-pile, ventilate;
(10) through 20 days, open large stretch of Polypropylence Sheet of bamboo chip, thoroughly ventilate after 1～2 day, send into high temperature sterilization in carbonization tank, 120 DEG C of carburizing temperatures, carbonization pressure 0.2～0.4MPa, carbonization time 1～2 hour;
(11) after the carbonization high temperature sterilization of bamboo chip completing steps 10, send in the Eusol of 1～10% concentration and flood 1～3 hour, take out for subsequent use;
(12) in cooker, prepare the acetum of 1～10% concentration, add the bamboo chip of step 11 after stirring, start boiling after closing the tank mouth of cooker, boiling was taken out bamboo chip after 10～50 minutes, with clear water washing, completed the bleaching process of bamboo chip;
(13) bleaching bamboo chip is sent into dry kiln and be dried, 80～100 DEG C of baking temperatures, 24～48 hours drying times, the moisture control of dry rear bamboo chip is 6～10%, and the bamboo chip of system is as the bamboo materials'use of conventional bamboo product.
2. processing method according to claim 1, is characterized in that, it is to reject the bamboo chip seriously going mouldy that described step 1 is dyed the object that mould bamboo chip carries out necessary classification, then without any actual value.
3. processing method according to claim 1, it is characterized in that, in described step 2 in order to be undertaken fully and completely dying mould bamboo chip high temperature sterilization, dye mould bamboo chip and must not adopt binding wrapping, must will dye mould bamboo chip stay aligned, bamboo chip adopts metal side tube to use as filler strip between layers, never allows bamboo chip to occur bridging phenomenon.
4. processing method according to claim 1, is characterized in that, in described step 3, in order to ensure that dried bamboo chip moisture control is 10～20%, can adopt if desired spray to steam the mode of processing increases the final moisture content of bamboo chip.
5. processing method according to claim 1, it is characterized in that, the nutrient solution preparing in described step 4 is in the sterilization process of high-temp steam sterilizing equipment, and the lid of 2000 milliliters of vials can not cover in sterilization process, prevent vial in heating process because of overheated splash to rise break.
6. processing method according to claim 1, is characterized in that, checks the microbiological contamination situation of solid medium in incubator blank in described step 5 every day, and total inspection number of days is 3 days.
7. processing method according to claim 1, is characterized in that, the Aspergillus flavus of inoculation in described step 6 (
aspergillus flavus) bacterial classification provided by raw ring institute of the Chinese Academy of Forestry.
8. processing method according to claim 1, it is characterized in that, the number of plies of placing the metal frame of bamboo cane in described step 8 forms by 3～10 layers, every layer adopts 3～5mm corrosion resistant plate to be welded and fixed, the densely covered diameter 3cm circular hole in corrosion resistant plate surface, prevents that water droplet from condensing at bamboo chip and corrosion resistant plate contact site.
9. processing method according to claim 1, it is characterized in that, the operating personnel that spray Aspergillus flavus liquid in described step 8 must wear professional biochemistry clothes, in the Cheng Qian of crossing of spraying inoculation Aspergillus flavus, must carry out whole body sterilization, prevent that other miscellaneous bacteria from bringing bamboo chip into.
10. processing method according to claim 1, is characterized in that, in described step 11, by the Eusol of bamboo chip dipping 1～10% concentration, must bamboo chip is immersed in Eusol weighting material completely.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104441130A (en) * | 2014-12-08 | 2015-03-25 | 阜南佳利工艺品有限公司 | Mouldproof and mothproof treatment method for wood |
| CN105459243A (en) * | 2016-01-07 | 2016-04-06 | 福建农林大学 | Processing method of cedarwood furniture panels with white rot bacterial plaque |
| CN106750464A (en) * | 2016-12-27 | 2017-05-31 | 南京聚锋新材料有限公司 | A kind of mold-proof method of Wood plastic composite |
| CN109016018A (en) * | 2018-08-30 | 2018-12-18 | 嘉善久顺木业有限公司 | A kind of shallow technique of drift of black walnut wood skin |
| CN110181634A (en) * | 2019-05-29 | 2019-08-30 | 浙江大东吴绿家木业有限公司 | A kind of preparation method of chemical modification color wood composite floor |
| CN112895048A (en) * | 2021-01-18 | 2021-06-04 | 浙江农林大学 | Method for recycling mildewed dried bean curd stick wood |
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| CN109016018A (en) * | 2018-08-30 | 2018-12-18 | 嘉善久顺木业有限公司 | A kind of shallow technique of drift of black walnut wood skin |
| CN110181634A (en) * | 2019-05-29 | 2019-08-30 | 浙江大东吴绿家木业有限公司 | A kind of preparation method of chemical modification color wood composite floor |
| CN112895048A (en) * | 2021-01-18 | 2021-06-04 | 浙江农林大学 | Method for recycling mildewed dried bean curd stick wood |
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| CN104015238B (en) | 2015-11-18 |
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