CN102523780A - Preparation method of magnetic powder anti-counterfeiting tobacco pelletized seed and test method thereof - Google Patents
Preparation method of magnetic powder anti-counterfeiting tobacco pelletized seed and test method thereof Download PDFInfo
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Abstract
The invention provides a preparation method of magnetic powder anti-counterfeiting tobacco pelletized seed, comprising the following steps of: firstly coating a first coat agent on a tobacco naked seed to form into a pelletized seed, mixing a second coat agent with magnetic powder with a certain quantity, and coating the pelletized seed. The tobacco pelletized seed obtained by the method has a two-layer structure, the inner-layer structure which is adjacent to the naked seed does not contain the magnetic powder, and the tobacco pelletized seed can be identified by magnetic material. The invention has the advantage that the anti-counterfeiting cost is low since the method is simply adjusted on the basis that the original pelletization process flow of the tobacco seed is not changed, and the equipment does not need updating. Compared with the common tobacco pelletized seed, the tobacco pelletized seed with an anti-counterfeiting function has the same appearance, and only can show magnetism characteristic only under specific detection step and detection material. The method provides a simple and reliable anti-counterfeit technology for the tobacco seed, so that the protection to the quality of seed quality and the benefit of tobacco company and seed user is enhanced.
Description
Technical field
The present invention relates to a kind of seed anti-counterfeiting technology, be specifically related to a kind of method that magnetic powders has anti-fraud functional tobacco pelleted seed of using, also relate to the method for differentiating this false proof seed.
Background technology
Tobacco occupies critical role in national economy, but tobacco seed often faces the situation of being palmed off by the lawless person, and this brings very big harm for leaf tobacco production and tobacco grower.False proof about seed, what plant at present that industry generally uses all is the anti-counterfeit package technology.Seed packaging is the direct carrier that seed is sold, so fake and forged, as to safeguard seed market normal order, protection number one and legitimate rights and interests comparatively direct, effective solution are hit by the false proof seed enterprise that also becomes naturally of seed packaging.But mixing the genuine with the fictitious and the confusion of anti-fake product itself of packaging industry makes that seed enterprise is hard to guard against, also lets ordinary people be difficult to the true and false of identification seed.And to also less the appearing in the newspapers of anti-counterfeiting technology of seed itself.
Seed-pelleting has been a this minimum grain seed of the technology of widespread usage, especially tobacco at present, and its Pelleting processing technology is very ripe, also mostly adopts pelleted seed to sow in the production.
Chinese patent CN1759648A provides a kind of magnetic capsuled seed and magnetic seed coating medicine and magnetization processing method; This method is specifically related to the magnetic seed coating medicine prescription of granule seeds such as vegetables, flowers, the vegetables after the coated pellet granulation, flower seed and to the magnetization processing method of magnetic capsuled seed.The magnetic seed coating medicine is characterized in that by weight proportion, it contains: inert substance 70 ~ 90%, granularity are 150 ~ 250 purpose reduced iron powders 10 ~ 30%; Inert substance refers to talcum powder, bentonite and diatomaceous one or more mixtures; Utilize granulating disc, adopt the dry powder spraying to carry out granulation, the seed that granulation is good should be dried processing immediately, in case iron is oxidized.By vegetables, flower seed after the above-mentioned batching dressing pillization, its characteristics are: the seed weight behind the small-sized seed dressing should reach 3 ~ 9 times of original seed weight; The seed that granulation is good places in kind of the case, and the seed that the electromagnet suction nozzle on the magnetic force seeder is drawn in kind of the case successively magnetizes processing, and the magnetic field intensity of magnetic head is at 1000Gs ~ 2000Gs, and final the completion magnetized.
The shortcoming of this method is to need to adopt iron powder cooperating equipment magnelized seeds, and preparation process is complicated; In addition, iron powder directly contacts seed, all can produce certain harmful effect to seed vigor and vigor; This method does not relate to pelleted seed antifalse effect and anti-counterfeiting detection.
The present invention is exactly a kind of method for anti-counterfeit to the tobacco pelleted seed; It combines with pill-type technology false proof, and magnetic material is applied to pelleted seed, when guaranteeing that magnetic material and processing mode are to seed sprouting and growth of seedling nonhazardous effect; Can avoid false proof expensive of packaging material again to greatest extent; And false proof mode is flexible, detect sensitive, this at home in addition external seed research field still belong to blank.
Summary of the invention
An object of the present invention is to provide a kind of method that magnetic powders has anti-fraud functional tobacco pelleted seed of using, under the situation that guarantees seed vitality, contribute for the fake and forged problem that solves tobacco seed on the market again.The easy easy operating of this method for anti-counterfeit, false proof cost is low, has strengthened the antiforge function of tobacco pelleted seed, has also protected the interests of wide farmers and tobacco company.
A kind of preparation method of magnetic antiforge function tobacco pelleted seed comprises the steps:
1, granulation: pour the naked kind of certain mass into the dressing machine, the moistening naked kind of spraying clear water surface, adding quality earlier is first kind of clothing agent of 3.5% ~ 5.0% naked mass, constantly stirs, and makes it to be wrapped in naked kind surface, repeats above step 3-5 time, forms little pellets; Repeatedly adding quality then is first kind of clothing agent of 20% ~ 50% naked mass, during continuous spray adhesive and stirring, make the particle diameter of ball shape seed be increased to 1.00mm ~ 1.25mm;
2, Pelleting: with second kind of clothing agent with account for second kind of clothing agent and magnetic mixture gross mass and be not more than 10% magnetic and mix; Mixture with 20% ~ 50% naked mass joins in the ball shape seed of last step formation again; Spray adhesive also stirs, and for several times, makes the particle diameter of ball shape seed be increased to 1.60mm ~ 1.80mm so repeatedly; Screen then, polish, paint, drying, obtain the seed that dressing finishes.
Wherein, in step 2, the quality optimization that adds magnetic is 2% ~ 8% of magnetic and second kind of clothing agent composition gross mass, and more preferably quality is 2% or 5% or 8%, most preferably 5%.
Wherein, the agent of kind clothing is optional from clay, diatomite, peat, mica, vermiculite, the mixing of one or more in perlite, active carbon, rock phosphate, bentonite and the talcum powder.Described first kind of clothing agent is selected from bentonite.Described second kind of clothing agent is selected from talcum powder.Described adhesive is to be selected from the solution that high molecular polymer forms; High molecular polymer comprises gum Arabic; Starch, carboxymethyl cellulose, methylcellulose, ethyl cellulose, polyethylene acetate fiber, Sodium Alginate, polyvinylidene chloride, polyethylene oxide, polyvinyl alcohol etc.; The said adhesive preferably carboxymethyl cellulose aqueous solution, its concentration are 1.0% ~ 3.0% (percentage by weight).Described magnetic is selected from several 500 ~ 1000 purpose iron powders of order, and the order number of preferred magnetic is 1000 orders.
Wherein, the first kind of clothing agent quality that in granulation step, adds adds up to 6 ~ 9 times of naked mass, preferred 7.5 times.Wherein, the second kind of clothing agent quality that in the Pelleting step, adds adds up to 35 ~ 49 times of naked mass, preferred 42 times.
The false proof tobacco pelleted seed of magnetic of the present invention's preparation; Wherein, With naked kind is that core is coated with double-layer structure; The ground floor structure of being close to naked kind comprises first kind of clothing agent, and the second layer structure of being close to the ground floor structure comprises second kind of clothing agent and magnetic, and wherein the magnetic quality is no more than 10% of second kind of clothing agent and magnetic mixture gross mass.
Wherein, the quality optimization of magnetic is 2% ~ 8% of magnetic and second kind of clothing agent composition gross mass, and preferred mass is 2% or 5% or 8%, most preferably 5%.
Wherein, the particle diameter that has covered the tobacco ball shape seed of ground floor structure is 1.00mm ~ 1.25mm.
Wherein, the particle diameter that has covered the tobacco ball shape seed of second layer structure is 1.60mm ~ 1.80mm.
Wherein, the agent of kind clothing is optional from clay, diatomite, peat, mica, vermiculite, the mixing of one or more in perlite, active carbon, rock phosphate, bentonite and the talcum powder.Described first kind of clothing agent is selected from bentonite.Described second kind of clothing agent is selected from talcum powder.Described adhesive is to be selected from the solution that high molecular polymer forms; High molecular polymer comprises gum Arabic; Starch, carboxymethyl cellulose, methylcellulose, ethyl cellulose, polyethylene acetate fiber, Sodium Alginate, polyvinylidene chloride, polyethylene oxide, polyvinyl alcohol etc.; The described adhesive preferably carboxymethyl cellulose aqueous solution, its concentration is 1.0% ~ 3.0%.Described magnetic is selected from several 500 ~ 1000 purpose iron powders of order, and the order number of preferred magnetic is 1000 orders.
Another object of the present invention provides the method for the false proof tobacco pelleted seed of a kind of fast detecting magnetic, and this method utilizes magnetic material that seed is detected, and a kind of concrete detection method comprises; Number is got 100 pelleted seeds; Being put in diameter is in the 12cm glass culture dish, draws seed with magnetic material, the pelleted seed quantity that counting is drawn by magnetic material; Repeat repeatedly, judge the percentage of having added the pelleted seed of magnetic in the tobacco pelleted seed.
Wherein, described magnetic material comprises ndfeb magnet or ferrite lattice, and the shape of magnet comprises cylinder and cuboid; When detect adding the tobacco pelleted seed of magnetic quantity not sufficient 5%, can adopt the ndfeb magnet of D6 ~ D15 cylinder or F6 ~ F15 cuboid, when detect add the magnetic amount 5% and more than the tobacco pelleted seed time, can adopt the ferrite lattice of cuboid.
In practical application; Consideration from strengthening antifalse effect can mix the tobacco pelleted seed that contains magnetic of some in the common tobacco pelleted seed, specifically in common tobacco pelleted seed, mixing the false proof seed that how much contains magnetic can be by enterprise that sells tobacco seed or unit decision; Different cultivars; Different batches, even the seed in different year, the different places of production can adopt different mixed proportions, through aforementioned detection method; Can differentiate fast whether certain a collection of tobacco pelleted seed is the certain species of this enterprise, or the seed of selling to the specific region.This kind method for anti-counterfeit; Even when other people know that additive is a magnetic in the coating material; And know that available magnetic material detects; But if it does not know the mixed proportion of magnetic pelleted seed and common pelleted seed, just can't forge, this has increased enterprise's initiative and reliability false proof to seed greatly.
The invention has the advantages that: simple to operation, on the basis that does not change the original Pelleting technological process of tobacco seed, simply adjust, need not the renewal of equipment etc., with low cost.Preparation have an anti-fraud functional pelleted seed and common pelleted seed indifference in appearance, under certain test material, just can demonstrate magnetic characteristic.This method has further guaranteed the quality of seed for tobacco seed enterprise provides reliable anti-counterfeiting technology more initiatively, has protected seed enterprise and the interests of planting child user.
Description of drawings
Fig. 1 is that the influence to the tobacco seedling chlorophyll content is handled in the magnetic Pelleting.
Embodiment
Provide preferred embodiment of the present invention below, these embodiment and unrestricted content of the present invention.
Among the following embodiment, tobacco bred " MS cloud and mist 85 " and " the big gold dollar of safflower " seed are from China Tobacco Seed Yuxi Co., Ltd..Bentonite (A powder) and talcum powder (B powder) are from China Tobacco Seed Yuxi Co., Ltd., and carboxymethyl cellulose is available from Hangzhou Huadong Medicine Group Co.,Ltd.Magnetic adopts 1000 order magnetics, looks forward to hair powder body Materials Co., Ltd, purity 99% available from last marine oil.The model of dressing machine is BY300A, available from the new promise instrument and equipment in Shanghai Co., Ltd.
Embodiment 1
Pour the tobacco seed of 10g into the dressing machine.
Granulation: 3.75g magnetic and 71.25g bentonite are mixed; Obtain the mixture that particle content is bentonite and magnetic gross mass 5%, the moistening the surface of the seed of clear water of spraying earlier, adding quality is the bentonite of 0.5g and the mixture of magnetic; Constantly stir; Make it be wrapped in the surface of the seed, repeat above step 3 ~ 5 time, form little pellets; The mixture of 2g ~ 5g bentonite and magnetic is joined in the ball shape seed then, the cmc soln of spraying 1.0% constantly stirs, and repeats repeatedly, makes the particle diameter of ball shape seed be increased to 1.00mm ~ 1.25mm at every turn;
Pelleting: 21g magnetic and 399g talcum powder are mixed; Obtain the mixture that particle content is talcum powder and magnetic gross mass 5%; The mixture of 2g ~ 5g talcum powder and magnetic is joined in the ball shape seed of granulation formation, and the cmc soln of spraying 3% constantly stirs; Make the particle diameter of the ball shape seed that granulation forms be increased to 1.60mm ~ 1.80mm, screen then, polish, paint, drying obtains the seed that dressing finishes.
When granulation step begins, at first add a small amount of clothing agent of planting, can make that seed fully disperses, help the later stage granulation, the purpose of granulation is that seed is further disperseed and increases its volume, Pelleting then makes the seed volume after the granulation continue to increase to ideal range.The control of pelleted seed particle diameter is mainly screened through the sifting machine of difformity with size, and the seed that will reach desirable particle size sifts out, the then continuation Pelleting that does not reach.The used pulvis of tobacco Pelleting according to the invention, its fineness is generally 200 ~ 300 orders, for make magnetic fully mixing and do not influence the effect of final Pelleting in the Pelleting pulvis, so magnetic is selected the thin iron powder of 500 ~ 1000 orders.
It is optional from clay, diatomite to plant the clothing agent, peat, mica, vermiculite, the mixing of one or more in perlite, active carbon, rock phosphate, bentonite and the talcum powder.First kind of clothing agent in the present embodiment is preferably from bentonite.Second kind of clothing agent is preferably from talcum powder.Its main cause is that these two kinds of raw material chemical property are stable, composition is single, cheap and easy to get, be easy to suitability for industrialized production.
Described adhesive is to be selected from the solution that high molecular polymer forms; High molecular polymer comprises gum Arabic; Starch, carboxymethyl cellulose, methylcellulose, ethyl cellulose, polyethylene acetate fiber, Sodium Alginate, polyvinylidene chloride, polyethylene oxide, polyvinyl alcohol etc.; The adhesive preferably carboxymethyl cellulose aqueous solution of present embodiment, its concentration is 1.0% ~ 3.0%.
In order to realize the object of the invention; The inventor constantly screens and contrasts through a large amount of experiments; For example magnetic is mixed with bentonite and talcum powder respectively in varing proportions; Measure the germination of magnetic pelleted seed, adjust magnetic and bentonite and talcous mixed proportion again according to measuring the result, so that obtain being suitable for the preferable magnetic ratio and the processing method of tobacco pelleted seed.Method described in the present embodiment is the basic method for preparing the false proof pelleted seed of magnetic; The false proof seed of other embodiment preparation and the difference of present embodiment only are that magnetic in granulation process and the Pelleting process accounts for percentage by weight different of mixture; Special; Magnetic addition in the granulation process can be 0%, and concrete preparation method repeats no more in the embodiment of back.
Pelleted seed for the ease of among the embodiment of back the magnetic that adds Different Weight percentage in the clothing agent not of the same race being made compares, and convenient expression, all adopts the coded representation with certain significance.Illustrate, in the present embodiment, because magnetic mixes respectively with A powder (bentonite), B powder (talcum powder) and magnetic accounts for 5% of mixture gross mass separately respectively, so the false proof seed for preparing is represented with AB5.Only do not use the A powder as kind of a clothing agent if do not add magnetic in the granulation process, in the Pelleting process, magnetic is mixed with the B powder and magnetic accounts for 10% of mixture gross mass, the false proof seed that then prepares is represented with B10.In addition, in granulation process and Pelleting process, all do not add the seed of magnetic and represent, as contrast with CK.
Seed sprouting and physiological index determining method:
(1) seed sprouting and seedling index
The tobacco pelleted seed is placed the diameter 9 cm culture dishes of three layers of moisture absorption filter paper.Every processing repeats 100 pelleted seeds of every repetition 3 times.The experiment of germinateing is carried out under 20 ~ 30 ℃ of alternating temperature conditions, high temperature (30 ℃) 8 h, and low temperature (20 ℃) 16 h, the high temperature period has illumination.
Put bed back and played every day on the 2nd day germination seed is counted, calculated germination vigor in the 7th day, the 16th day statistics germination rate.Germinateed the 17th day, 3 of each processing are repeated all to select 10 strain seedling at random, measure the long and height of seedling of its root.Seedling is dried 24 h in 80 ℃ of baking ovens, measure its dry weight.Germination index (GI=Σ (
G t /
T t )) (in the formula:
G t Be the germinative number of different time,
T t Be the germination fate, Σ is a summation).
(2) seedling chlorophyll content
Get the bright appearance of tobacco seedling 0.2 g of different disposal, place mortar, add 1 ml, 95% ethanol and grind, after fully grinding, pour in the 5 ml centrifuge tubes, add 2 ml, 95% alcohol flushing again, pour in the centrifuge tube, in centrifugal 10 min of 5 000 r/min.Get supernatant 1 ml in 10 ml centrifuge tubes, add 9 ml, 95% ethanol, measure 665 behind the mixing; Absorbance under 649,470 nm is a blank with 95% ethanol; The computational methods of chlorophyll a, chlorophyll b, carotenoid and chlorophyll total amount are with reference to Li Hesheng; The method of definition in " plant physiology and biochemistry experimental principle and the technology " that Sun Qun, Zhao Shijie etc. write (Beijing: Higher Education Publishing House, 2001).
(3) statistical analysis technique
Adopt SAS (V8) software to carry out variance analysis, multiple ratio adopts
P<0.05,
LSDMethod, the percentage data of result of the test process arcsine conversion earlier before the statistics (
y=arcsin [sqr (x/l00)]).
Embodiment 2
In the present embodiment, in A powder (bentonite) and B powder (talcum powder), all mix magnetic, prepared following false proof seed respectively; Be AB5, AB10, AB20; AB30 and AB50; Through experiment and the data statistics of germinateing, find to remove the germination rate and the no significant difference of contrast of AB5, the percentage of seedgermination of all the other processing all significantly is lower than contrast (table 1).Simultaneously, several kinds of germination index and the germination vigoies of handling seed also all significantly are lower than contrast.When particle content surpassed 10%, germination vigor was 0; When particle content surpasses 20%, germination rate and germination index are 0.
The influence that several kinds of magnetic Pelletings of table 1 method is germinateed to tobacco seed
Annotate: the same kind different disposal of the different letter representations of * differences significantly (
P<0.05, LSD), down together
Embodiment 3
Because its germination vigor of false proof pelleted seed and the germination index of preparation all significantly are lower than contrast among the embodiment 2; Think that the reason that causes this kind phenomenon has two kinds; The one, the addition of magnetic is excessive to have harmful effect to seed germination, and the 2nd, it is unfavorable to seed sprouting that magnetic directly contacts seed.
Whether to be that magnetic directly contacts seed unfavorable to seed sprouting in order to verify, and in the A powder, do not add magnetic in the present embodiment, only add magnetic in the B powder to, and the particle content in the B powder do not reduce, and prepares the magnetic pelleted seed thus and carry out germination test.
In the present embodiment; Prepared following false proof seed respectively; Be B10, B20 and B30, the germination rate of two tobacco bred B10 does not all have significant difference with contrast; And the germination rate of " the big gold dollar of safflower " B20 also with the no significant difference of contrast, all the other processing seed germination rate of two tobacco breds all significantly are lower than contrast.Simultaneously, the germination index and the germination vigor of all processing pelleted seeds also all significantly are lower than contrast (table 2).This addition that shows magnetic is excessive unfavorable to seed sprouting really.Simultaneously, B10 is with respect to AB10, and potentiality of seed, germination rate, germination index obviously improve, and explains that it also is influential to seed germination that magnetic directly contacts seed.
The influence that several kinds of magnetic Pelletings of table 2 method is germinateed to tobacco seed
Embodiment 4
Because embodiment 2 and embodiment 3 think that all causing the bad possible cause of seed germination is that the magnetic addition is excessive, in order to address this problem, have reduced the content of magnetic in kind of clothing agent in the present embodiment; But avoid particle content low excessively again; To such an extent as to anti-counterfeiting detection is difficult to carry out, so present embodiment all mixes magnetic in A powder and B powder, prepared following seed; Be AB1, AB2.5 and AB4.The result shows that two tobacco bred seed germination rate, germination vigor and contrasts do not have significant difference, and the germination index of AB1 all is higher than contrast, and " MS cloud and mist 85 " reach significance level, but the germination index of the AB4 of two tobacco breds significantly is lower than contrast (table 3).Think thus, reduce particle content and can reduce the harmful effect of magnetic really seed germination.
The influence that several kinds of magnetic Pelletings of table 3 method is germinateed to tobacco seed
Embodiment 5
The AB1 and the AB2.5 of preparation have no adverse effects to seed germination among the embodiment 4, but the test of embodiment 3 shows that it also is influential to seed germination that magnetic directly contacts seed.Therefore, in order further to study the influence of magnetic to seed germination.In the A powder, do not add magnetic in the present embodiment, only add magnetic in the B powder to, and reduced particle content, prepare following false proof seed, i.e. B2, B5 and B8.
The result shows that the germination index of " MS cloud and mist 85 " B2 is significantly higher than contrast, and other handle two kinds on germination vigor, germination rate and germination index also all and contrast no significant difference (table 4).
The influence that several kinds of magnetic Pelletings of table 4 method is germinateed to tobacco seed
Embodiment 6
The experimental result of comprehensive embodiment 2-5 filters out germinate five kinds of Pelleting methods having no adverse effects of pelleted seed has been carried out the mensuration of seedling quality again.The B2 of " the big gold dollar of safflower " wherein, it is long that B8 and AB2.5 have significantly improved the seedling root, and B5 and AB1 have significantly improved the seedling height of seedling, five processing do not make significant difference to the seedling dry weight.Five kinds of Pelleting methods of " MS cloud and mist 85 " seedling height of seedling that has been significantly increased, the seedling dry weight of B5 also is significantly higher than contrast, the seedling root of five processing long with contrast no significant difference (table 5).
Several kinds of magnetic Pelletings of table 5 method is to the influence of tobacco seedling quality
Chlorophyll content to tobacco seedling is handled in these five kinds of Pelletings is measured, the B2 that finds at " the big gold dollar of safflower ", and among B5 and the B8, seedling chlorophyll a and chlorophyll total content increase, chlorophyll b, carotenoid and contrast no significant difference.Chlorophyll a and chlorophyll total content relative comparison are obviously on the low side in AB1 and the AB2.5 seedling, and AB1 significantly reduces." MS cloud and mist 85 " removes AB2.5 and significantly reduced seedling chlorophyll a, carotenoid and chlorophyll total content, all the other 4 kinds handle the seedling chlorophyll content all with contrast no significant difference (Fig. 1).
The magnetic main component is an iron, and iron is that chlorophyll forms indispensable element, in the plant body, is difficult to shift.If the soil iron deficiency all certain influence can be arranged to photosynthesis of plants and output, but iron is excessive; Can cause that also chlorophyll content of plant reduces; Add magnetic so plant in the clothing agent, the root system position that can be tobacco provides ferro element, helps the photosynthesis of growth of seedling and tobacco leaf.After the magnetic Pelleting is handled; B2; B5 and B8 have no adverse effects to growth of seedling and chlorophyll content, and the also significantly increase of contrast of some index, and AB1 and AB2.5 then have the reduction effect to the seedling chlorophyll content; Even show and reduce particle content, magnetic directly contacts seed still there is certain influence in growth of seedling.This explains that once more it is unfavorable to seed growth that magnetic directly contacts seed, so when the Pelleting of tobacco seed magnetic, should avoid magnetic to contact with the direct of seed as far as possible.
Any method for treating seeds, the most basic requirement does not have harmful effect to seed itself exactly, and this can judge through measuring seed sprouting and growth of seedling index of correlation usually.
The result finds, when A powder (bentonite) and B powder (talcum powder) when all mixing magnetic, when just magnetic directly contacts with seed, even the particle content of low concentration also has adverse effect to growth of seedling.And only when in the B powder, mixing magnetic, just magnetic does not directly contact with seed, finds that magnetic concentration can suitably increase, and pelleted seed is sprouted and growth of seedling has no adverse effects.Through constantly adjusting the mixed proportion of magnetic in kind of clothing agent; Find B2; B5 and B8 all have no adverse effects to two tobacco bred seed germinations; Seedling quality and chlorophyll content are not had influence yet, some in addition significantly improved root long or height of seedling or the seedling dry weight of seedling, show that the growth that suitable magnetic Pelleting is handled tobacco seedling has certain positive role.Explain when the magnetic quality to be no more than 10% of second kind of clothing agent and magnetic mixture gross mass, and only in second kind of clothing agent, during the interpolation magnetic, be the false proof Pelleting processing method of preferable magnetic.
Embodiment 7
Be placed in the glass culture dish that diameter is 12cm after the CK seed of 60 " the big gold dollar of safflower " B8 seeds and 40 " the big gold dollars of safflower " mixed, the false proof seed of magnetic accounts for 60% of all pelleted seeds sums.Near culture dish, the quantity of the pelleted seed that counting is drawn by magnet finds that having 60 B8 seeds is attracted with a magnetic pole strength of the ferrite lattice of cuboid, and calculating the ratio that the false proof seed of magnetic accounts for all pelleted seeds sums is 60%; Repeat above test 7 times again, calculate the false proof seed rate of magnetic and be respectively 60%, 60%; 60%, 60%, 60%; 60%, 60%, eight times are calculated average proportions is 60%.
So can detect the false proof pelleted seed of magnetic according to the method, can detect the false proof seed of magnetic of the original preset proportion that contains in a collection of tobacco pelleted seed simultaneously.
Claims (10)
1. the preparation method of the false proof tobacco pelleted seed of magnetic comprises the steps:
Granulation: pour the naked kind of certain mass into the dressing machine, moistening naked kinds of spraying clear water surface, adding quality earlier is first kind of clothing agent of 3.5% ~ 5.0% naked mass, constantly stirs, it is surperficial to make it to be wrapped in naked kind, repeats above step 3 ~ 5 time, forms little pellets; Repeatedly adding quality then is first kind of clothing agent of 20% ~ 50% naked mass, during continuous spray adhesive and stirring, make the particle diameter of ball shape seed be increased to 1.00mm ~ 1.25mm;
Pelleting: with second kind of clothing agent with account for second kind of clothing agent and magnetic mixture gross mass and be not more than 10% magnetic and mix; Mixture with 20% ~ 50% naked mass joins in the ball shape seed of last step formation again; Spray adhesive also stirs, and for several times, makes the particle diameter of ball shape seed be increased to 1.60mm ~ 1.80mm so repeatedly; Screen then, polish, paint, drying, obtain the seed that dressing finishes.
2. the method for claim 1 is characterized in that, in the Pelleting step, the quality optimization that adds magnetic is 2% ~ 8% of magnetic and second kind of clothing agent composition gross mass.
3. method as claimed in claim 2 is characterized in that, in the Pelleting step, the quality optimization that adds magnetic is 2% or 5% or 8% of magnetic and second kind of clothing agent composition gross mass.
4. like any described method of claim 1-3, it is characterized in that the agent of kind clothing is optional from clay, diatomite, peat, mica, vermiculite, the mixing of one or more in perlite, active carbon, rock phosphate, bentonite and the talcum powder; Described first kind of clothing agent is selected from bentonite; Described second kind of clothing agent is selected from talcum powder.
5. like any described method of claim 1-3, it is characterized in that described adhesive is to be selected from the solution that high molecular polymer forms; High molecular polymer comprises gum Arabic; Starch, carboxymethyl cellulose, methylcellulose, ethyl cellulose, polyethylene acetate fiber, Sodium Alginate, polyvinylidene chloride, polyethylene oxide, polyvinyl alcohol etc.; The described adhesive preferably carboxymethyl cellulose aqueous solution, its concentration is 1.0% ~ 3.0%.
6. like any described method of claim 1-3, it is characterized in that described magnetic is selected from several 500 ~ 1000 purpose iron powders of order, the order number of preferred magnetic is 1000 orders.
7. like any described method of claim 1-3, it is characterized in that the first kind of clothing agent quality that in granulation step, adds adds up to 6 ~ 9 times of naked mass, preferred 7.5 times.
8. like any described method of claim 1-3, it is characterized in that the second kind of clothing agent quality that in the Pelleting step, adds adds up to 35 ~ 49 times of naked mass, preferred 42 times.
9. the detection method of the false proof tobacco pelleted seed of magnetic; This method utilizes magnetic material that seed is detected, and concrete steps are: number is got the pelleted seed that 100 claims 1 prepare, and being put in diameter is in the 12cm glass culture dish; Draw seed with magnetic material; The pelleted seed quantity that counting is drawn by magnetic material repeats repeatedly, judges the percentage of having added the pelleted seed of magnetic in the tobacco pelleted seed.
10. method as claimed in claim 9 is characterized in that described magnetic material comprises ndfeb magnet or ferrite lattice, and the shape of magnet comprises cylinder and cuboid; When detect adding the tobacco pelleted seed of magnetic quantity not sufficient 5%, can adopt the ndfeb magnet of D6 ~ D15 cylinder or F6 ~ F15 cuboid, when detect add the magnetic amount 5% and more than the tobacco pelleted seed time, can adopt the ferrite lattice of cuboid.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523790A (en) * | 2011-09-30 | 2012-07-04 | 浙江大学 | Preparation method of magnetic powder anti-counterfeiting tobacco seed pellets, seed pellets and detection method of seed pellets |
| CN106576502A (en) * | 2016-12-16 | 2017-04-26 | 玉溪中烟种子有限责任公司 | Negative ion false proofing tobacco coated seed and production method thereof |
| CN106888616A (en) * | 2015-12-21 | 2017-06-27 | 玉溪中烟种子有限责任公司 | One grows tobacco developing anti-fake pelleted seed and its processing and the method for inspection |
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| CN102523790A (en) * | 2011-09-30 | 2012-07-04 | 浙江大学 | Preparation method of magnetic powder anti-counterfeiting tobacco seed pellets, seed pellets and detection method of seed pellets |
| CN106888616A (en) * | 2015-12-21 | 2017-06-27 | 玉溪中烟种子有限责任公司 | One grows tobacco developing anti-fake pelleted seed and its processing and the method for inspection |
| CN106576502A (en) * | 2016-12-16 | 2017-04-26 | 玉溪中烟种子有限责任公司 | Negative ion false proofing tobacco coated seed and production method thereof |
| CN108966748A (en) * | 2018-08-01 | 2018-12-11 | 玉溪中烟种子有限责任公司 | A kind of starch anti-counterfeiting tobacco coat pelleted seeds and preparation method thereof and identification method |
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