A kind of anti-artwork of woodwork
Technical field
Treatment process more particularly to a kind of technique that woodwork can be prevented infested the present invention relates to a kind of woodwork.
Background technology
Timber is the inside general designation for developing plant tissue of vascular cambium, and timber plays very your writing for human lives
With being widely used in the every aspects such as building, furniture, daily necessities.However timber easily it is infested be timber a big defect, sternly
Ghost image rings the service life of timber.
In the prior art, the insect-prevention treatment method of timber usually have dry, japanning, it is stifling, impregnate etc., but these methods
It is typically only capable to act on surface, it is difficult to the thoroughly generation for preventing moth from inside to outside.
The content of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of woodwork anti-artwork, by this
After process, manufactured woodwork will not be infested, woodwork will not long small holes caused by worms, extend the service life of woodwork.
To achieve the above object, the present invention provides following technical solutions:
A kind of anti-artwork of woodwork, it is characterised in that:Include the following steps:
Step 1, drill in the center of timber, hole penetrates through entire timber, and hole extends along timber axis;
Step 2, a pipe is fed in hole, multiple apertures are disposed on pipe;Pipe one end open, one end closing;
Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, when 2~3 is small after, take
Fall rubber stopper, insect prevention liquid is poured into pipe, after insect prevention liquid 5~7 times is poured into pipe, stopping pours into insect prevention liquid;
Step 4, step 3 will be passed through treated that timber is put into confined chamber, steam, the temperature of steam are passed through into confined chamber
Degree control at 110~120 DEG C, be passed through steam 2 it is small when after, stopping is passed through steam, by timber rest in confined chamber 2~3 it is small when,
The flow control of steam is passed through in 30~35L/h;
Step 5, timber is put into fermentation vat impregnate 2~3.5 it is small when, bottom is equipped with supersonic oscillations in fermentation vat
Instrument is controlled at 76~83 DEG C full of the insect prevention liquid for impregnating pool volume 2/3, the temperature of insect prevention liquid in fermentation vat;
Step 6, step 5 will be passed through treated that timber is placed again into confined chamber, steam, steam are passed through into confined chamber
Temperature control at 85~92 DEG C, be passed through steam 3 it is small when after, stopping is passed through steam, and it is small that timber is rested in confined chamber 4~5
When, the flow control of steam is passed through in 25~28L/h;
Step 7, the timber Jing Guo step 6 being put into drying oven and dried, the temperature of drying oven is controlled at 120~145 DEG C,
Dryer is closed after 0.5~1.2h of drying, timber is rested on into 1~2.2h in dryer;
Step 8, be exposed to the sun under the sun 1~1.5 it is small when;
Step 9, after timber natural cooling, japanning.
The insect prevention liquid of the present invention uses existing insect prevention liquid.In order to obtain better vermins-proof effect, the present invention also carries
A kind of insect prevention liquid has been supplied,
The insect prevention liquid in parts by weight, including the following raw material:
12~16 parts of chinaberry wood skin,
10~15 parts of santal wood skin,
22~26 parts of FOLIUM ET RAMULUS COTINI,
16~18 parts of clematis armandi Francs,
37~42 parts of radix bupleuri,
3~5 parts of gossypol,
It is 6~8 parts octagonal,
12~16 parts of lavender,
8~12 parts of thyme,
3~6 parts of capsicum leaf,
5~11 parts of dried peppermint leaf.
The preparation method of the insect prevention liquid is:
Step 1, chinaberry wood skin, santal wood skin, clematis armandi Francs, radix bupleuri and illiciumverum are weighed according to above-mentioned parts by weight;
Step 2, chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed in frying pan frying together, frying 15
After~22 minutes, Guan Huo covers pot cover, after boiling in a covered pot over a slow fire 2~3 minutes, takes out spare;
Step 3, step 2 will be passed through treated that chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed on crushing
Number in machine is crushed to 120~160 mesh, obtains powder;
Step 4, FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and dried peppermint leaf are weighed according to above-mentioned parts by weight;
Step 5, FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and the dried peppermint leaf Jing Guo step 4 are dried, rubbed broken;
Step 6, by step 5, treated that FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and dried peppermint leaf are put into closed appearance
In device, the saccharomycete bacterium solution of 3~5 times of capsicum leaf parts by weight is added in into closed container in 30~35 DEG C, air-proof condition
Lower fermentation process obtains fermentation material after 90~120 minutes, takes out spare;
Step 7, gossypol is weighed according to above-mentioned parts by weight, and powder and step 6 that gossypol, step 3 are obtained obtains
Fermentation material, which mixes, is put into infusion in saucepan, adds in water into saucepan, and the volume of the water of addition is gossypol, step 3 obtains
Powder and obtain 3 times of fermentation material total volume of step 6, the infusion time is 22~28 minutes;
Step 8, the material of step 7 is filtered through, obtains filtrate and filter residue;
Step 9, centrifugal treating filtrate, the liquid obtained after centrifugation are insect prevention liquid.
The gossypol is that cottonseed is crushed to 80~100 mesh, adds in the absolute ethyl alcohol of 5~7 times of amounts of cottonseed weight, is placed in
43~45 DEG C, 37~39kHz ultrasonic extractions 35~40 minutes, filtering obtain extracting solution and filter residue, then 3~5 times are added in into filter residue
The absolute ethyl alcohol of amount is placed in 46~48 DEG C, 57~59 revs/min and shakes extraction 32~34 minutes, and filtering merges all extractions
Liquid, be placed in 42~44 DEG C, 51~53 revs/min of rotary evaporations to no ethyl alcohol, obtain gossypol.
The invention has the advantages that:
1st, the present invention includes the following steps:Step 1, drill in the center of timber, hole penetrates through entire timber, hole along
Timber axis extends;Step 2, a pipe is fed in hole, multiple apertures are disposed on pipe;Pipe one end open, one end
Closing;Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, when 2~3 is small after, take away
Rubber stopper, insect prevention liquid is poured into pipe, and after insect prevention liquid 5~7 times is poured into pipe, stopping pours into insect prevention liquid;Pass through step
The processing of 1- steps 3 allows insect prevention liquid to be slowly immersed in timber, by kills such as the worm's ovums at timber center.Step 4, step will be passed through
Rapid 3 treated that timber is put into confined chamber, steam is passed through into confined chamber, the temperature of steam is controlled at 110~120 DEG C, led to
Enter steam 2 it is small when after, stopping is passed through steam, by timber rest in confined chamber 2~3 it is small when, the flow control for being passed through steam exists
30~35L/h;By the effect of steam, timber is heated, steam is immersed in timber, and high temperature kills worm's ovum, but also
The effect of insect prevention liquid desinsection can be improved.Step 5, timber is put into fermentation vat impregnate 2~3.5 it is small when, bottom is pacified in fermentation vat
Equipped with supersonic oscillations instrument, controlled in fermentation vat full of the insect prevention liquid for impregnating pool volume 2/3, the temperature of insect prevention liquid 76~83
℃;Entire timber is impregnated, the everywhere of timber is allowed to organize all to contact with insect prevention liquid, removes the worm's ovum in timber.It step 6, will be through
It crosses step 5 treated that timber is placed again into confined chamber, steam is passed through into confined chamber, the temperature of steam is controlled 85~92
DEG C, be passed through steam 3 it is small when after, stopping is passed through steam, by timber rest in confined chamber 4~5 it is small when, be passed through the flow control of steam
System is in 25~28L/h;Steam high-temperature disinsection heating again, lasting effects allow insect prevention liquid to be immersed in the everywhere tissue of timber, kill
All worm's ovums.Step 7, the timber Jing Guo step 6 is put into drying oven and dried, the temperature of drying oven is controlled 120~145
DEG C, dryer is closed after drying 0.5~1.2h, timber is rested on into 1~2.2h in dryer;The effect one of drying is drying wood
Material comes out the emission of bad smell of insect prevention liquid, second is that killing worm's ovum again.Step 8, be exposed to the sun under the sun 1~1.5 it is small when;Step
9, after timber natural cooling, japanning.The sun, which is exposed to the sun, further kills the worm's ovum of wood surface, and insect prevention liquid is allowed slowly to be evaporated,
Kill the worm's ovum in timber.By the processing of above-mentioned work step, can by timber, all worm's ovum all kills from inside to outside,
Ensure that entire timber is remained without worm's ovum, after such japanning, long-time service there will not be small holes caused by worms generation.
2nd, the present invention also provides the specific formula of insect prevention liquid, impregnated with the insect prevention liquid, not only good disinsection effect, but also complete
It is Nantural non-toxic side effect entirely, manufactured wooden product natural environmental-protective gives out light fragrance, can not only prevent woodwork
It is infested, moreover it is possible to bring a good air environment to interior.
Specific embodiment
Embodiment 1
Present embodiments provide a kind of anti-artwork of woodwork, it is characterised in that:Include the following steps:
Step 1, drill in the center of timber, hole penetrates through entire timber, and hole extends along timber axis;
Step 2, a pipe is fed in hole, multiple apertures are disposed on pipe;Pipe one end open, one end closing;
Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, when 2 is small after, take away
Rubber stopper, insect prevention liquid is poured into pipe, and after insect prevention liquid 6 times is poured into pipe, stopping pours into insect prevention liquid;
Step 4, step 3 will be passed through treated that timber is put into confined chamber, steam, the temperature of steam are passed through into confined chamber
Degree control at 112 DEG C, be passed through steam 2 it is small when after, stopping is passed through steam, by timber rest in confined chamber 2 it is small when, be passed through steam
Flow control in 35L/h;
Step 5, timber is put into fermentation vat impregnate 2 it is small when, bottom is equipped with supersonic oscillations instrument in fermentation vat, impregnates
It is controlled in pond full of the insect prevention liquid for impregnating pool volume 2/3, the temperature of insect prevention liquid at 80 DEG C;
Step 6, step 5 will be passed through treated that timber is placed again into confined chamber, steam, steam are passed through into confined chamber
Temperature control at 85 DEG C, be passed through steam 3 it is small when after, stopping is passed through steam, by timber rest in confined chamber 5 it is small when, be passed through
The flow control of steam is in 28L/h;
Step 7, the timber Jing Guo step 6 is put into drying oven and dried, the temperature of drying oven is controlled at 120 DEG C, drying
Dryer is closed after 1.2h, timber is rested on into 2.2h in dryer;
Step 8, be exposed to the sun under the sun 1.5 it is small when;
Step 9, after timber natural cooling, japanning.
The insect prevention liquid of the present embodiment uses existing insect prevention liquid.Details are not described herein.
Embodiment 2
Present embodiments provide a kind of anti-artwork of woodwork, it is characterised in that:Include the following steps:
Step 1, drill in the center of timber, hole penetrates through entire timber, and hole extends along timber axis;
Step 2, a pipe is fed in hole, multiple apertures are disposed on pipe;Pipe one end open, one end closing;
Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, when 3 is small after, take away
Rubber stopper, insect prevention liquid is poured into pipe, and after insect prevention liquid 7 times is poured into pipe, stopping pours into insect prevention liquid;
Step 4, step 3 will be passed through treated that timber is put into confined chamber, steam, the temperature of steam are passed through into confined chamber
Degree control at 120 DEG C, be passed through steam 2 it is small when after, stopping is passed through steam, by timber rest in confined chamber 3 it is small when, be passed through steam
Flow control in 35L/h;
Step 5, timber is put into fermentation vat impregnate 3.5 it is small when, bottom is equipped with supersonic oscillations instrument in fermentation vat, soaks
It steeps in pond and is controlled full of the insect prevention liquid for impregnating pool volume 2/3, the temperature of insect prevention liquid at 83 DEG C;
Step 6, step 5 will be passed through treated that timber is placed again into confined chamber, steam, steam are passed through into confined chamber
Temperature control at 92 DEG C, be passed through steam 3 it is small when after, stopping is passed through steam, by timber rest in confined chamber 5 it is small when, be passed through
The flow control of steam is in 28L/h;
Step 7, the timber Jing Guo step 6 is put into drying oven and dried, the temperature of drying oven is controlled at 145 DEG C, drying
Dryer is closed after 1.2h, timber is rested on into 2.2h in dryer;
Step 8, be exposed to the sun under the sun 1.5 it is small when;
Step 9, after timber natural cooling, japanning.
The insect prevention liquid of the present embodiment in parts by weight, including the following raw material:
12 parts of chinaberry wood skin,
10 parts of santal wood skin,
22 parts of FOLIUM ET RAMULUS COTINI,
16 parts of clematis armandi Francs,
42 parts of radix bupleuri,
5 parts of gossypol,
It is 8 parts octagonal,
16 parts of lavender,
12 parts of thyme,
6 parts of capsicum leaf,
11 parts of dried peppermint leaf.
The preparation method of the insect prevention liquid is:
Step 1, chinaberry wood skin, santal wood skin, clematis armandi Francs, radix bupleuri and illiciumverum are weighed according to above-mentioned parts by weight;
Step 2, chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed in frying pan frying together, frying 22
After minute, Guan Huo covers pot cover, after boiling in a covered pot over a slow fire 3 minutes, takes out spare;
Step 3, step 2 will be passed through treated that chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed on crushing
Number in machine is crushed to 160 mesh, obtains powder;
Step 4, FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and dried peppermint leaf are weighed according to above-mentioned parts by weight;
Step 5, FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and the dried peppermint leaf Jing Guo step 4 are dried, rubbed broken;
Step 6, by step 5, treated that FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and dried peppermint leaf are put into closed appearance
In device, the saccharomycete bacterium solution of 5 times of capsicum leaf parts by weight is added in into closed container in 35 DEG C, under air-proof condition at fermentation
Reason obtains fermentation material after 120 minutes, takes out spare;
Step 7, gossypol is weighed according to above-mentioned parts by weight, and powder and step 6 that gossypol, step 3 are obtained obtains
Fermentation material, which mixes, is put into infusion in saucepan, adds in water into saucepan, and the volume of the water of addition is gossypol, step 3 obtains
Powder and obtain 3 times of fermentation material total volume of step 6, the infusion time is 28 minutes;
Step 8, the material of step 7 is filtered through, obtains filtrate and filter residue;
Step 9, centrifugal treating filtrate, the liquid obtained after centrifugation are insect prevention liquid.
The gossypol is that cottonseed is crushed to 100 mesh, adds in the absolute ethyl alcohols of 7 times of amounts of cottonseed weight, be placed in 45 DEG C,
39kHz ultrasonic extractions 40 minutes, filtering obtain extracting solution and filter residue, then the absolute ethyl alcohol of 5 times of amounts is added in into filter residue, are placed in 48
DEG C, 59 revs/min concussion extraction 34 minutes, filtering, merge all extracting solutions, be placed in 44 DEG C, 53 revs/min of rotary evaporations to nothing
Ethyl alcohol obtains gossypol.
Embodiment 3
Present embodiments provide a kind of anti-artwork of woodwork, it is characterised in that:Include the following steps:
Step 1, drill in the center of timber, hole penetrates through entire timber, and hole extends along timber axis;
Step 2, a pipe is fed in hole, multiple apertures are disposed on pipe;Pipe one end open, one end closing;
Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, when 2 is small after, take away
Rubber stopper, insect prevention liquid is poured into pipe, and after insect prevention liquid 5 times is poured into pipe, stopping pours into insect prevention liquid;
Step 4, step 3 will be passed through treated that timber is put into confined chamber, steam, the temperature of steam are passed through into confined chamber
Degree control at 110 DEG C, be passed through steam 2 it is small when after, stopping is passed through steam, by timber rest in confined chamber 2 it is small when, be passed through steam
Flow control in 30L/h;
Step 5, timber is put into fermentation vat impregnate 2 it is small when, bottom is equipped with supersonic oscillations instrument in fermentation vat, impregnates
It is controlled in pond full of the insect prevention liquid for impregnating pool volume 2/3, the temperature of insect prevention liquid at 76 DEG C;
Step 6, step 5 will be passed through treated that timber is placed again into confined chamber, steam, steam are passed through into confined chamber
Temperature control at 85 DEG C, be passed through steam 3 it is small when after, stopping is passed through steam, by timber rest in confined chamber 4 it is small when, be passed through
The flow control of steam is in 25L/h;
Step 7, the timber Jing Guo step 6 is put into drying oven and dried, the temperature of drying oven is controlled at 120 DEG C, drying
Dryer is closed after 0.5~1.2h, timber is rested on into 1h in dryer;
Step 8, be exposed to the sun under the sun 1 it is small when;
Step 9, after timber natural cooling, japanning.
The insect prevention liquid in parts by weight, including the following raw material:
16 parts of chinaberry wood skin,
15 parts of santal wood skin,
26 parts of FOLIUM ET RAMULUS COTINI,
18 parts of clematis armandi Francs,
37 parts of radix bupleuri,
3 parts of gossypol,
It is 6 parts octagonal,
12 parts of lavender,
8 parts of thyme,
3 parts of capsicum leaf,
5 parts of dried peppermint leaf.
The preparation method of the insect prevention liquid is:
Step 1, chinaberry wood skin, santal wood skin, clematis armandi Francs, radix bupleuri and illiciumverum are weighed according to above-mentioned parts by weight;
Step 2, chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed in frying pan frying together, frying 15
After minute, Guan Huo covers pot cover, after boiling in a covered pot over a slow fire 2 minutes, takes out spare;
Step 3, step 2 will be passed through treated that chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed on crushing
Number in machine is crushed to 120 mesh, obtains powder;
Step 4, FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and dried peppermint leaf are weighed according to above-mentioned parts by weight;
Step 5, FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and the dried peppermint leaf Jing Guo step 4 are dried, rubbed broken;
Step 6, by step 5, treated that FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and dried peppermint leaf are put into closed appearance
In device, the saccharomycete bacterium solution of 3 times of capsicum leaf parts by weight is added in into closed container in 30 DEG C, under air-proof condition at fermentation
Reason obtains fermentation material after 90 minutes, takes out spare;
Step 7, gossypol is weighed according to above-mentioned parts by weight, and powder and step 6 that gossypol, step 3 are obtained obtains
Fermentation material, which mixes, is put into infusion in saucepan, adds in water into saucepan, and the volume of the water of addition is gossypol, step 3 obtains
Powder and obtain 3 times of fermentation material total volume of step 6, the infusion time is 22 minutes;
Step 8, the material of step 7 is filtered through, obtains filtrate and filter residue;
Step 9, centrifugal treating filtrate, the liquid obtained after centrifugation are insect prevention liquid.
The gossypol is that cottonseed is crushed to 80 mesh, adds in the absolute ethyl alcohols of 5 times of amounts of cottonseed weight, be placed in 43 DEG C,
37kHz ultrasonic extractions 35 minutes, filtering obtain extracting solution and filter residue, then the absolute ethyl alcohol of 3 times of amounts is added in into filter residue, are placed in 46
DEG C, 57 revs/min concussion extraction 32 minutes, filtering, merge all extracting solutions, be placed in 42 DEG C, 51 revs/min of rotary evaporations to nothing
Ethyl alcohol obtains gossypol.
Embodiment 4
Present embodiments provide a kind of anti-artwork of woodwork, it is characterised in that:Include the following steps:
Step 1, drill in the center of timber, hole penetrates through entire timber, and hole extends along timber axis;
Step 2, a pipe is fed in hole, multiple apertures are disposed on pipe;Pipe one end open, one end closing;
Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, when 2.5 is small after, take
Fall rubber stopper, insect prevention liquid is poured into pipe, after insect prevention liquid 6 times is poured into pipe, stopping pours into insect prevention liquid;
Step 4, step 3 will be passed through treated that timber is put into confined chamber, steam, the temperature of steam are passed through into confined chamber
Degree control at 115 DEG C, be passed through steam 2 it is small when after, stopping is passed through steam, by timber rest in confined chamber 2.5 it is small when, be passed through steaming
The flow control of vapour is in 32L/h;
Step 5, timber is put into fermentation vat impregnate 3 it is small when, bottom is equipped with supersonic oscillations instrument in fermentation vat, impregnates
It is controlled in pond full of the insect prevention liquid for impregnating pool volume 2/3, the temperature of insect prevention liquid at 78 DEG C;
Step 6, step 5 will be passed through treated that timber is placed again into confined chamber, steam, steam are passed through into confined chamber
Temperature control at 88 DEG C, be passed through steam 3 it is small when after, stopping is passed through steam, by timber rest in confined chamber 4.5 it is small when, lead to
Enter the flow control of steam in 26.5L/h;
Step 7, the timber Jing Guo step 6 is put into drying oven and dried, the temperature of drying oven is controlled at 135 DEG C, drying
Dryer is closed after 0.8h, timber is rested on into 1.8h in dryer;
Step 8, be exposed to the sun under the sun 1.2 it is small when;
Step 9, after timber natural cooling, japanning.
The insect prevention liquid of the present invention uses existing insect prevention liquid.In order to obtain better vermins-proof effect, the present invention also carries
A kind of insect prevention liquid has been supplied,
The insect prevention liquid in parts by weight, including the following raw material:
14 parts of chinaberry wood skin,
13 parts of santal wood skin,
25 parts of FOLIUM ET RAMULUS COTINI,
17 parts of clematis armandi Francs,
40 parts of radix bupleuri,
4 parts of gossypol,
It is 7 parts octagonal,
15 parts of lavender,
9 parts of thyme,
4 parts of capsicum leaf,
8 parts of dried peppermint leaf.
The preparation method of the insect prevention liquid is:
Step 1, chinaberry wood skin, santal wood skin, clematis armandi Francs, radix bupleuri and illiciumverum are weighed according to above-mentioned parts by weight;
Step 2, chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed in frying pan frying together, frying 18
After minute, Guan Huo covers pot cover, after boiling in a covered pot over a slow fire 2.5 minutes, takes out spare;
Step 3, step 2 will be passed through treated that chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed on crushing
Number in machine is crushed to 140 mesh, obtains powder;
Step 4, FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and dried peppermint leaf are weighed according to above-mentioned parts by weight;
Step 5, FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and the dried peppermint leaf Jing Guo step 4 are dried, rubbed broken;
Step 6, by step 5, treated that FOLIUM ET RAMULUS COTINI, lavender, thyme, capsicum leaf and dried peppermint leaf are put into closed appearance
In device, the saccharomycete bacterium solution that 3.5 times of capsicum leaf parts by weight are added in into closed container is fermented under 32 DEG C, air-proof condition
After processing 110 minutes, fermentation material is obtained, is taken out spare;
Step 7, gossypol is weighed according to above-mentioned parts by weight, and powder and step 6 that gossypol, step 3 are obtained obtains
Fermentation material, which mixes, is put into infusion in saucepan, adds in water into saucepan, and the volume of the water of addition is gossypol, step 3 obtains
Powder and obtain 3 times of fermentation material total volume of step 6, the infusion time is 24 minutes;
Step 8, the material of step 7 is filtered through, obtains filtrate and filter residue;
Step 9, centrifugal treating filtrate, the liquid obtained after centrifugation are insect prevention liquid.
The gossypol is that cottonseed is crushed to 88 mesh, adds in the absolute ethyl alcohols of 6 times of amounts of cottonseed weight, be placed in 44 DEG C,
38kHz ultrasonic extractions 38 minutes, filtering obtain extracting solution and filter residue, then the absolute ethyl alcohol of 4 times of amounts is added in into filter residue, are placed in 47
DEG C, 58/ rev/min concussion extraction 33 minutes, filtering, merge all extracting solutions, be placed in 43 DEG C, 52 revs/min of rotary evaporations extremely
Without ethyl alcohol, gossypol is obtained.
Take above-described embodiment that sample is made respectively, after being observed continuously 2 years, situation of damaging by worms is as follows:
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.