A kind of anti-artwork of woodwork
Technical field
The present invention relates to a kind for the treatment of process of woodwork, more particularly to a kind of technique that woodwork can be prevented infested.
Background technique
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 necessity.However timber be easy 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, which usually has, dries, paints, is stifling, impregnating etc., but these methods
It is typically only capable to act on surface, is difficult the generation for preventing moth thoroughly from inside to outside.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of anti-artwork of woodwork, 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 the following technical scheme that
A kind of anti-artwork of woodwork, characterized by the following steps:
Step 1, it drills in the center of timber, hole penetrates through entire timber, and hole extends along timber axis;
Step 2, a pipe is fed in hole, and multiple apertures are disposed on pipe;Pipe is open at one end, closed at one end;
Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, after 2~3 hours, is taken
Fall rubber stopper, insect prevention liquid is poured into pipe, after insect prevention liquid 5~7 times are poured into pipe, stopping pours into insect prevention liquid;
Step 4, will by step 3, treated that timber is put into confined chamber, steam, the temperature of steam are passed through into confined chamber
Degree control is at 110~120 DEG C, and after being passed through steam 2 hours, stopping is passed through steam, and timber is rested in confined chamber 2~3 hours,
The flow control of steam is passed through in 30~35L/h;
Step 5, timber is put into fermentation vat and is impregnated 2~3.5 hours, bottom is equipped with supersonic oscillations in fermentation vat
Instrument, full of the insect prevention liquid for impregnating pool volume 2/3 in fermentation vat, the temperature of insect prevention liquid is controlled at 76~83 DEG C;
Step 6, will by step 5, treated that timber is placed again into confined chamber, steam, steam are passed through into confined chamber
Temperature control at 85~92 DEG C, after being passed through steam 3 hours, 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 is 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, it is exposed to the sun under the sun 1~1.5 hour;
Step 9, after timber natural cooling, japanning.
Insect prevention liquid of the invention uses existing insect prevention liquid.In order to obtain better vermins-proof effect, the present invention is also mentioned
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 insect prevention liquid the preparation method comprises the following steps:
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;
It step 3, will treated that chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed on crushing by step 2
It is crushed 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, is 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 into closed container in 30~35 DEG C, air-proof condition
Lower fermentation process obtained fermentation material after 90~120 minutes, took out spare;
Step 7, gossypol is weighed according to above-mentioned parts by weight, and powder and step 6 that gossypol, step 3 obtain are obtained
Fermentation material, which mixes, is put into infusion in saucepan, water is added into saucepan, 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, it is filtered through the material of step 7, 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, and the dehydrated alcohol of 5 ~ 7 times of cottonseed weight amounts is added, is placed in 43
~ 45 DEG C, 37 ~ 39kHz ultrasonic extraction 35 ~ 40 minutes, filtering, obtain extracting solution and filter residue, then the nothing of 3 ~ 5 times of amounts is added into filter residue
Water-ethanol, be placed in 46 ~ 48 DEG C, 57 ~ 59 revs/min of concussions extract 32 ~ 34 minutes, filtering merges all extracting solutions, be placed in 42 ~
44 DEG C, 51 ~ 53 revs/min of rotary evaporations to no ethyl alcohol, obtain gossypol.
The invention has the following advantages:
1, the present invention includes the following steps: step 1, drills in the center of timber, and hole penetrates through entire timber, hole along
Timber axis extends;Step 2, a pipe is fed in hole, and multiple apertures are disposed on pipe;Pipe is open at one end, one end
Closing;Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, after 2~3 hours, is taken away
Rubber stopper, insect prevention liquid is poured into pipe, and after insect prevention liquid 5~7 times are poured into pipe, stopping pours into insect prevention liquid;Pass through step
The processing of 1- step 3 allows insect prevention liquid to be slowly immersed in timber, and the worm's ovum at timber center etc. is killed.It step 4, will be by step
Rapid 3 treated that timber is put into confined chamber, steam is passed through into confined chamber, the temperature of steam controls at 110~120 DEG C, leads to
After entering steam 2 hours, stopping is passed through steam, timber is rested in confined chamber 2~3 hours, 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 and is impregnated 2~3.5 hours, bottom is pacified in fermentation vat
Equipped with supersonic oscillations instrument, the insect prevention liquid for impregnating pool volume 2/3 is full of in fermentation vat, the temperature of insect prevention liquid is controlled 76~83
℃;Entire timber is impregnated, allows the everywhere of timber 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, after being passed through steam 3 hours, stopping is passed through steam, and timber is rested in confined chamber 4~5 hours, the flow control of steam is passed through
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 is 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 of drying is first is that drying wood
Material comes out the emission of bad smell of insect prevention liquid, second is that killing worm's ovum again.Step 8, it is exposed to the sun under the sun 1~1.5 hour;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 is all killed from inside to outside,
Guarantee 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.
2, it the present invention also provides the specific formula of insect prevention liquid, is 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, characterized by the following steps:
Step 1, it drills in the center of timber, hole penetrates through entire timber, and hole extends along timber axis;
Step 2, a pipe is fed in hole, and multiple apertures are disposed on pipe;Pipe is open at one end, closed at one end;
Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, after 2 hours, is taken away
Rubber stopper, insect prevention liquid is poured into pipe, and after insect prevention liquid 6 times are poured into pipe, stopping pours into insect prevention liquid;
Step 4, will by step 3, treated that timber is put into confined chamber, steam, the temperature of steam are passed through into confined chamber
Degree control is at 112 DEG C, and after being passed through steam 2 hours, stopping is passed through steam, and timber is rested in confined chamber 2 hours, steam is passed through
Flow control in 35L/h;
Step 5, timber is put into fermentation vat and is impregnated 2 hours, bottom is equipped with supersonic oscillations instrument in fermentation vat, impregnates
Full of the insect prevention liquid for impregnating pool volume 2/3 in pond, the temperature of insect prevention liquid is controlled at 80 DEG C;
Step 6, will by step 5, treated that timber is placed again into confined chamber, steam, steam are passed through into confined chamber
Temperature control at 85 DEG C, after being passed through steam 3 hours, stopping be passed through steam, timber is rested in confined chamber 5 hours, is 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 is dried, the temperature of drying oven controls the drying at 120 DEG C
Dryer is closed after 1.2h, and timber is rested on into 2.2h in dryer;
Step 8, it is exposed to the sun under the sun 1.5 hours;
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, characterized by the following steps:
Step 1, it drills in the center of timber, hole penetrates through entire timber, and hole extends along timber axis;
Step 2, a pipe is fed in hole, and multiple apertures are disposed on pipe;Pipe is open at one end, closed at one end;
Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, after 3 hours, is taken away
Rubber stopper, insect prevention liquid is poured into pipe, and after insect prevention liquid 7 times are poured into pipe, stopping pours into insect prevention liquid;
Step 4, will by step 3, treated that timber is put into confined chamber, steam, the temperature of steam are passed through into confined chamber
Degree control is at 120 DEG C, and after being passed through steam 2 hours, stopping is passed through steam, and timber is rested in confined chamber 3 hours, steam is passed through
Flow control in 35L/h;
Step 5, timber is put into fermentation vat and is impregnated 3.5 hours, bottom is equipped with supersonic oscillations instrument in fermentation vat, leaching
It steeps full of the insect prevention liquid for impregnating pool volume 2/3 in pond, the temperature of insect prevention liquid is controlled at 83 DEG C;
Step 6, will by step 5, treated that timber is placed again into confined chamber, steam, steam are passed through into confined chamber
Temperature control at 92 DEG C, after being passed through steam 3 hours, stopping be passed through steam, timber is rested in confined chamber 5 hours, is 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 is dried, the temperature of drying oven controls the drying at 145 DEG C
Dryer is closed after 1.2h, and timber is rested on into 2.2h in dryer;
Step 8, it is exposed to the sun under the sun 1.5 hours;
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 insect prevention liquid the preparation method comprises the following steps:
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;
It step 3, will treated that chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed on crushing by step 2
It is crushed 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, is 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 into closed container in 35 DEG C, under air-proof condition at fermentation
Reason obtained fermentation material after 120 minutes, took out spare;
Step 7, gossypol is weighed according to above-mentioned parts by weight, and powder and step 6 that gossypol, step 3 obtain are obtained
Fermentation material, which mixes, is put into infusion in saucepan, water is added into saucepan, 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, it is filtered through the material of step 7, 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, be added 7 times of cottonseed weight amount dehydrated alcohols, be placed in 45 DEG C,
39kHz ultrasonic extraction 40 minutes, filtering obtained extracting solution and filter residue, then the dehydrated alcohol of 5 times of amounts is added into filter residue, was placed in 48
DEG C, 59 revs/min of concussions extract 34 minutes, filtering merges all extracting solutions, is 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, characterized by the following steps:
Step 1, it drills in the center of timber, hole penetrates through entire timber, and hole extends along timber axis;
Step 2, a pipe is fed in hole, and multiple apertures are disposed on pipe;Pipe is open at one end, closed at one end;
Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, after 2 hours, is taken away
Rubber stopper, insect prevention liquid is poured into pipe, and after insect prevention liquid 5 times are poured into pipe, stopping pours into insect prevention liquid;
Step 4, will by step 3, treated that timber is put into confined chamber, steam, the temperature of steam are passed through into confined chamber
Degree control is at 110 DEG C, and after being passed through steam 2 hours, stopping is passed through steam, and timber is rested in confined chamber 2 hours, steam is passed through
Flow control in 30L/h;
Step 5, timber is put into fermentation vat and is impregnated 2 hours, bottom is equipped with supersonic oscillations instrument in fermentation vat, impregnates
Full of the insect prevention liquid for impregnating pool volume 2/3 in pond, the temperature of insect prevention liquid is controlled at 76 DEG C;
Step 6, will by step 5, treated that timber is placed again into confined chamber, steam, steam are passed through into confined chamber
Temperature control at 85 DEG C, after being passed through steam 3 hours, stopping be passed through steam, timber is rested in confined chamber 4 hours, is 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 is dried, the temperature of drying oven controls the drying at 120 DEG C
Dryer is closed after 0.5~1.2h, and timber is rested on into 1h in dryer;
Step 8, it is exposed to the sun under the sun 1 hour;
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 insect prevention liquid the preparation method comprises the following steps:
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;
It step 3, will treated that chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed on crushing by step 2
It is crushed 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, is 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 into closed container in 30 DEG C, under air-proof condition at fermentation
Reason obtained fermentation material after 90 minutes, took out spare;
Step 7, gossypol is weighed according to above-mentioned parts by weight, and powder and step 6 that gossypol, step 3 obtain are obtained
Fermentation material, which mixes, is put into infusion in saucepan, water is added into saucepan, 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, it is filtered through the material of step 7, 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, be added 5 times of cottonseed weight amount dehydrated alcohols, be placed in 43 DEG C,
37kHz ultrasonic extraction 35 minutes, filtering obtained extracting solution and filter residue, then the dehydrated alcohol of 3 times of amounts is added into filter residue, was placed in 46
DEG C, 57 revs/min of concussions extract 32 minutes, filtering merges all extracting solutions, is 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, characterized by the following steps:
Step 1, it drills in the center of timber, hole penetrates through entire timber, and hole extends along timber axis;
Step 2, a pipe is fed in hole, and multiple apertures are disposed on pipe;Pipe is open at one end, closed at one end;
Step 3, insect prevention liquid is poured into pipe, the opening of pipe is then blocked with rubber stopper, after 2.5 hours, is taken
Fall rubber stopper, insect prevention liquid is poured into pipe, after insect prevention liquid 6 times are poured into pipe, stopping pours into insect prevention liquid;
Step 4, will by step 3, treated that timber is put into confined chamber, steam, the temperature of steam are passed through into confined chamber
Degree control is at 115 DEG C, and after being passed through steam 2 hours, stopping is passed through steam, and timber is rested in confined chamber 2.5 hours, steaming is passed through
The flow control of vapour is in 32L/h;
Step 5, timber is put into fermentation vat and is impregnated 3 hours, bottom is equipped with supersonic oscillations instrument in fermentation vat, impregnates
Full of the insect prevention liquid for impregnating pool volume 2/3 in pond, the temperature of insect prevention liquid is controlled at 78 DEG C;
Step 6, will by step 5, treated that timber is placed again into confined chamber, steam, steam are passed through into confined chamber
Temperature control at 88 DEG C, after being passed through steam 3 hours, stopping be passed through steam, timber is rested in confined chamber 4.5 hours, 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 is dried, the temperature of drying oven controls the drying at 135 DEG C
Dryer is closed after 0.8h, and timber is rested on into 1.8h in dryer;
Step 8, it is exposed to the sun under the sun 1.2 hours;
Step 9, after timber natural cooling, japanning.
Insect prevention liquid of the invention uses existing insect prevention liquid.In order to obtain better vermins-proof effect, the present invention is also mentioned
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 insect prevention liquid the preparation method comprises the following steps:
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;
It step 3, will treated that chinaberry wood skin, santal wood skin, clematis armandi Francs, illiciumverum and radix bupleuri are placed on crushing by step 2
It is crushed 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, is 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 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 obtain are obtained
Fermentation material, which mixes, is put into infusion in saucepan, water is added into saucepan, 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, it is filtered through the material of step 7, 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, be added 6 times of cottonseed weight amount dehydrated alcohols, be placed in 44 DEG C,
38kHz ultrasonic extraction 38 minutes, filtering obtained extracting solution and filter residue, then the dehydrated alcohol of 4 times of amounts is added into filter residue, was placed in 47
DEG C, 58/ rev/min of concussion extract 33 minutes, filtering merges 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 a preferred embodiment of the present invention, 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 being led for this technology
For the those of ordinary skill in domain, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.