CN101653119B - Mildew-proof agent for straw weaving product - Google Patents
Mildew-proof agent for straw weaving product Download PDFInfo
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- CN101653119B CN101653119B CN2009101525701A CN200910152570A CN101653119B CN 101653119 B CN101653119 B CN 101653119B CN 2009101525701 A CN2009101525701 A CN 2009101525701A CN 200910152570 A CN200910152570 A CN 200910152570A CN 101653119 B CN101653119 B CN 101653119B
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- mildew
- proof agent
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- benzimidazole
- straw
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- 239000010902 straw Substances 0.000 title claims abstract description 18
- 238000009941 weaving Methods 0.000 title claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 title abstract description 7
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 claims abstract description 15
- OPGYRRGJRBEUFK-UHFFFAOYSA-L disodium;diacetate Chemical compound [Na+].[Na+].CC([O-])=O.CC([O-])=O OPGYRRGJRBEUFK-UHFFFAOYSA-L 0.000 claims abstract description 15
- 239000001632 sodium acetate Substances 0.000 claims abstract description 15
- 235000017454 sodium diacetate Nutrition 0.000 claims abstract description 15
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims abstract description 14
- 239000004299 sodium benzoate Substances 0.000 claims abstract description 14
- 235000010234 sodium benzoate Nutrition 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000003112 inhibitor Substances 0.000 claims description 26
- 230000000694 effects Effects 0.000 abstract description 17
- 239000011259 mixed solution Substances 0.000 abstract description 6
- 239000000243 solution Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000047 product Substances 0.000 description 8
- 102000004190 Enzymes Human genes 0.000 description 5
- 108090000790 Enzymes Proteins 0.000 description 5
- 210000004027 cell Anatomy 0.000 description 5
- 150000007524 organic acids Chemical class 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 239000004334 sorbic acid Substances 0.000 description 3
- 235000010199 sorbic acid Nutrition 0.000 description 3
- 229940075582 sorbic acid Drugs 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 210000000170 cell membrane Anatomy 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 230000003834 intracellular effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000010534 mechanism of action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 organic acid salt Chemical class 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000003053 toxin Substances 0.000 description 2
- 231100000765 toxin Toxicity 0.000 description 2
- GDBUZIKSJGRBJP-UHFFFAOYSA-N 4-acetoxy benzoic acid Chemical compound CC(=O)OC1=CC=C(C(O)=O)C=C1 GDBUZIKSJGRBJP-UHFFFAOYSA-N 0.000 description 1
- 240000005611 Agrostis gigantea Species 0.000 description 1
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 241000228197 Aspergillus flavus Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 235000016068 Berberis vulgaris Nutrition 0.000 description 1
- 241000335053 Beta vulgaris Species 0.000 description 1
- 241001465180 Botrytis Species 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 239000004287 Dehydroacetic acid Substances 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000233654 Oomycetes Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 241001361634 Rhizoctonia Species 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004283 Sodium sorbate Substances 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 241000223261 Trichoderma viride Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 241000082085 Verticillium <Phyllachorales> Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 125000003785 benzimidazolyl group Chemical group N1=C(NC2=C1C=CC=C2)* 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 235000019658 bitter taste Nutrition 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 235000019258 dehydroacetic acid Nutrition 0.000 description 1
- JEQRBTDTEKWZBW-UHFFFAOYSA-N dehydroacetic acid Chemical compound CC(=O)C1=C(O)OC(C)=CC1=O JEQRBTDTEKWZBW-UHFFFAOYSA-N 0.000 description 1
- 229940061632 dehydroacetic acid Drugs 0.000 description 1
- PGRHXDWITVMQBC-UHFFFAOYSA-N dehydroacetic acid Natural products CC(=O)C1C(=O)OC(C)=CC1=O PGRHXDWITVMQBC-UHFFFAOYSA-N 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- SYHPANJAVIEQQL-UHFFFAOYSA-N dicarboxy carbonate Chemical compound OC(=O)OC(=O)OC(O)=O SYHPANJAVIEQQL-UHFFFAOYSA-N 0.000 description 1
- LDCRTTXIJACKKU-ONEGZZNKSA-N dimethyl fumarate Chemical compound COC(=O)\C=C\C(=O)OC LDCRTTXIJACKKU-ONEGZZNKSA-N 0.000 description 1
- 229960004419 dimethyl fumarate Drugs 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- LROWVYNUWKVTCU-STWYSWDKSA-M sodium sorbate Chemical compound [Na+].C\C=C\C=C\C([O-])=O LROWVYNUWKVTCU-STWYSWDKSA-M 0.000 description 1
- 235000019250 sodium sorbate Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a mildew-proof agent for a straw weaving product. The mildew-proof agent comprises three raw materials, including sodium diacetate, benzimidazole and sodium benzoate. When in use, the three raw materials can be mixed, and then water is added to the raw materials to prepare a mixed solution, or a solution of the three raw materials is prepared into a mixed solution according to a proportion; a straw weaving product which needs mildew proofing is soaked by the mixed solution; and then the product is naturally aired. The compound mildew-proof agent has the characteristics of low price and convenience, is widely used and can have an effective protective action on products which are easy to have mildews, such as the straw weaving products and the like. Particularly, the sodium diacetate is used as the main component, thus the mildew-proof agent has no toxic and side effects.
Description
Technical field
The present invention relates to a kind of mould inhibitor, particularly a kind of mould inhibitor that is applicable to hay, straw weaving product.
Background technology
In China, particularly the straw plaited technology of the many provinces and cities in south is with a long history; Great variety of goods, fancy is various, and the knitting that is primary raw material with the yellow grass of triangle especially is the exquisitest; Smooth pliable, strong but pliable in texture, have manufacturability and practicality concurrently; For the green non-pollution environmentally friendly machine, has vast potential for future development.But region on the south the middle and lower reach of Yangtze River, annual summer, particularly after the set-in of plum rains, temperature raise gradually, and overcast and rainy, heavy rain is continuous constantly; It is warm that there was dampness in the air, and this natural environment is fit to growth and the breeding of various moulds; Already caused very big loss for straw plaited, limited the production capacity of straw weaving product, production in enterprise; In the process that stores and sell, the straw weaving product that hygroscopicity is stronger goes mouldy easily, causes damage.Will use lot of manpower and material resources to remove mildew straw weavings on because going mouldy of straw weavings caused serious loss to the straw plaited industry every year, and also some is seriously scrapped owing to going mouldy.
Mold-proof method is as from adopting quicklime charcoal, ash etc., and developing into present employing calcium chloride, silica gel etc. carries out the moisture absorption, from simple and crude fan blower, ventilating fan cooling, develops into till now sealed storage and modern means such as air conditioner, dehumidifier dehumidifying.Use the requirement of chemical anti mildew agent comparatively strict, possess both mould fungus inhibition growths simultaneously, nontoxic to animal again.Therefore, necessarily require mould inhibitor must have stronger broad-spectrum antibacterial effect; Easy to operate, safe in utilization, economical, no carcinogenic, teratogenesis, mutagenesis.
At present, mould inhibitor commonly used mainly contains three major types: the first kind is an organic acid, like propionic acid, sorbic acid, benzoic acid, acetate, dehydroacetic acid and fumaric acid etc.; Second type is organic acid salt and ester thereof, like propionate, sodium sorbate (potassium), Sodium Benzoate and dimethyl fumarate etc.; The 3rd type is composite mildew inhibitor.The organic acid anti-mold effect is better but corrosivity is bigger; The organic acid salt anti-mold effect is poor than organic acid, and must under the condition that certain moisture and pH value are arranged, just can carry out, but corrosivity is little; The effect of composite mildew inhibitor anti-mold effect is strong, corrosivity is little, is the development trend of mould inhibitor.The mechanism of action of mould inhibitor mainly is with the form destroy microorganisms cell of unionized molecule and cell membrane or intracellular enzyme; Zymoprotein in the mould is lost activity and catalysis can not be participated in; With the propagation of inhibition microorganism and the generation of toxin, thus the quality of protection feed.Suppress the active of microbial cell internal respiration enzyme and hinder the condensation reaction of acetylcoenzyme like benzoic acid, and tricarbonic acid cycle is obstructed, metabolism is influenced, but and the block cell film pass through property; Sorbic acid can combine with sulfydryl in the biology enzyme system, thereby the destructive enzyme system reaches bacteriostasis.In addition, organic acid also forms uniform organic acid diaphragm on the feed surface, prevents that mould from multiplying.But these mould inhibitors can not adapt to the climatic characteristic of the sultry humidity in summer fully, mildew-resistant effect limited, the generation that can not be in full force and effect prevent gone mouldy.
Summary of the invention
The present invention provides a kind of special composite mildew inhibitor to straw weaving product, and mould inhibitor can be penetrated in the cell of herbaceous stem, thereby eliminates various moulds completely.
A kind of mould inhibitor that is used for straw weaving product is made up of sodium Diacetate, benzimidazole and three kinds of raw materials of Sodium Benzoate.
Each components contents in the mould inhibitor, in parts by weight:
Sodium Diacetate 0.3-3 part
Benzimidazole 0.1-0.5 part
Sodium Benzoate 0.5-1 part
A kind of preferred mould inhibitor is 1: 1 by weight ratio:: 1 sodium Diacetate, benzimidazole and Sodium Benzoate are formed, and anti-mold effect is obvious.
Another kind of preferred mould inhibitor in parts by weight, is made up of 1-2.5 part sodium Diacetate, 0.1-0.2 part benzimidazole and 0.5-1 part Sodium Benzoate; Also can reach tangible anti-mold effect; And (such as, the benzimidazole that Chemical Reagent Co., Ltd., Sinopharm Group produces) price is more expensive because benzimidazole; Reduce its consumption, can reduce cost.
The mechanism of action of mould inhibitor mainly is with the form destroy microorganisms cell of unionized molecule and cell membrane or intracellular enzyme, zymoprotein in the mould is lost activity and catalysis can not be participated in, and with the propagation that suppresses microorganism and the generation of toxin, thus mildew-proof function.The advantage of Sodium Benzoate is that price is low, the source is abundant, good, the no cumulative effect of effect, toxicity little (greater than sorbic acid and salt thereof); Shortcoming is very narrow to the requirement of pH value, can only under acid condition, play a role, and the pH value begins to descend greater than 4 o'clock mildew-proof functions, and disagreeable tastes such as bitterness are arranged.The precursor structure of benzimidazole bactericide is the active part that contains the benzimidazole ring; Fungicidal spectrum is wide; Except that oomycetes; Better to effects such as botrytis, sickle-like bacteria, sclerotinite, verticillium sp, rhizoctonias, but multiple pathogen wheat scab, bakanae disease of rice, develop immunity to drugs fruit vegetable gray mold and beet, leaf spot of peanut to it.And sodium Diacetate mainly is that the interaction of interferases has suppressed the generation of mould through the cell wall that infiltrates through mould effectively, thereby reaches efficient mildew-resistant, function such as anticorrosion, to the inhibition effect excellence of black bent poison, bread mold, aspergillus flavus, Trichoderma viride.
The action principle of sodium Diacetate, benzimidazole and Sodium Benzoate has nothing in common with each other, and can kill and inhibitory action from different aspects to the mould generation, thereby reach wide spectrum, long-acting mildew-resistant anti-mildew effect.
Mould inhibitor of the present invention adds water after can three kinds of raw materials being mixed and is made into mixed solution, or the solution of three kinds of raw materials is prepared by measuring than being mixed with mixed solution in use, and the straw weaving product that needs mildew-resistant is soaked with mixed solution, and natural air drying gets final product then.
The present invention forms composite mildew inhibitor by sodium Diacetate, benzimidazole and three kinds of raw materials of Sodium Benzoate; Have cheapness characteristics easily, widely applicable, can play effective protective effect to easy mouldy products such as straws plaited; Particularly utilize sodium Diacetate to be main component, do not have toxic and side effect.
Embodiment
Weight preparation mould inhibitor according to each raw material in the following table.
Sodium Diacetate (gram) | Benzimidazole (gram) | Sodium Benzoate (gram) | |
Reference examples 1 | 0 | 0 | 0 |
Reference examples 2 | 0 | 0 | 1 |
Reference examples 3 | 0 | 0.5 | 0.5 |
Reference examples 4 | 1 | 0 | 0 |
Reference examples 5 | 0.5 | 0.5 | 0 |
Reference examples 6 | 0.5 | 0 | 0.5 |
Embodiment 1 | 0.3 | 0.3 | 0.5 |
Embodiment 2 | 0.3 | 0.5 | 1 |
Embodiment 3 | 0.5 | 0.5 | 0.5 |
Embodiment 4 | 1 | 0.1 | 0.5 |
Embodiment 5 | 1.5 | 0.1 | 1 |
Embodiment 6 | 2.5 | 0.2 | 0.5 |
Embodiment 7 | 2.5 | 0.5 | 1 |
Embodiment 8 | 3 | 0.5 | 1 |
Each mould inhibitor is dissolved with 1 kg water, be mixed with mould inhibitor solution.With the clean hay appearance of the mildew-resistant solution soaking 3min for preparing, air-dry under field conditions (factors) after, placing temperature is that 35 ℃, relative moisture are under 80% the condition, to observe the foregoing description and begin a mould situation, per three days records once.
Find that through observing reference examples 1 is the hay sample without any mildew-resistant agent treated, as blank test.Hay in the blank test went mouldy since the 6th day, during by the 12nd day, had covered with mould; And the sample of reference examples 2 and reference examples 3 is found through beginning in 18 days mould; Reference examples 4 is through having been found that mildew in 24 days; Reference examples 5 and reference examples 6 are through occurring mildew in 18 days.
Embodiment 1 to embodiment 8, and anti-mold effect is obvious.Through 42 days, the sample of embodiment 1 and embodiment 2 had mildew to occur, and embodiment 3 is through 60 talentes little mildew of taking a favourable turn; The sample of embodiment 4-6 the date of mildew all occurs all above 60 days; Embodiment 7 and 8 sample were not seen mildew through 3 months, but needed amount of reagent more, took all factors into consideration, and did not have special requirement need not use.The prescription of the mould inhibitor of embodiment 4-6 is the most cost-effective.
Claims (3)
1. mould inhibitor that is used for straw weaving product is characterized in that: forms by sodium Diacetate, benzimidazole and three kinds of raw materials of Sodium Benzoate, and each components contents, in parts by weight:
Sodium Diacetate 0.3-3 part
Benzimidazole 0.1-0.5 part
Sodium Benzoate 0.5-1 part.
2. mould inhibitor as claimed in claim 1 is characterized in that: by weight ratio is that 1: 1: 1 sodium Diacetate, benzimidazole and Sodium Benzoate formed.
3. mould inhibitor as claimed in claim 1 is characterized in that: in parts by weight, be made up of 1-2.5 part sodium Diacetate, 0.1-0.2 part benzimidazole and 0.5-1 part Sodium Benzoate.
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CN2009101525701A CN101653119B (en) | 2009-09-17 | 2009-09-17 | Mildew-proof agent for straw weaving product |
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CN103409066A (en) * | 2013-07-24 | 2013-11-27 | 吴江市利达上光制品有限公司 | Mildew inhibitor used for shoe polish |
CN114885943A (en) * | 2022-03-30 | 2022-08-12 | 四川农业大学 | Composite sterilization composition for brewsonia inermis as well as preparation method and application of composite sterilization composition |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1272315A (en) * | 2000-03-09 | 2000-11-08 | 北海市建筑科学研究院 | Composite mildew-removing and mildew-preventing agent for buildings |
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CN1272315A (en) * | 2000-03-09 | 2000-11-08 | 北海市建筑科学研究院 | Composite mildew-removing and mildew-preventing agent for buildings |
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