CN101838894B - Method and device for permeation curing of fibrilia - Google Patents
Method and device for permeation curing of fibrilia Download PDFInfo
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- CN101838894B CN101838894B CN2010101000871A CN201010100087A CN101838894B CN 101838894 B CN101838894 B CN 101838894B CN 2010101000871 A CN2010101000871 A CN 2010101000871A CN 201010100087 A CN201010100087 A CN 201010100087A CN 101838894 B CN101838894 B CN 101838894B
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Abstract
The invention relates to a method and a device for permeation curing of fibrilia. The curing method comprises the following steps of: 1, placing the fibrilia on a fibrilia piling device, sending the fibriia piling device to a tank body, and closing an airtight door; 2, injecting water in the tank body 1 by using a water injection valve, and controlling the water injection height by using a liquid level control device so as to make the liquid level higher than the preset lowest water level, lower than the preset highest water level and also lower than the fibrilia; 3, opening a heating valve, and heating the water in the tank body by using a heating device, wherein after the water in the tank body 1 is heated, the generated steam is permeated into every part of the fibrilia; 4, controlling the temperature in the tank body 1 and setting the temperature to be between 40 and 145 DEG C, controlling the pressure of the saturated steam in the tank body according to the set temperature, and setting the curing time of the fibrilia to be 30 to 240 minutes; and 5, after curing operation, opening an exhaust valve, opening a draining valve to discharge water, finally opening the airtight door, taking the piling device in which the fibrilia is piled out, and naturally cooling the piling device. The method and the device can be widely applied to the processing of all kinds of fibrilia.
Description
Technical field
The present invention relates to a kind of processing method and device of flax fibre, particularly about a kind of permeation curing of fibrilia method and device.
Background technology
Flax fibre is owing to the existence of cull, and the fiber doubling that obtains is many, contains assorted high.Simultaneously, the hemicellulose in the flax fibre, lignin equal size are higher, and the fiber after coming unstuck still is in crisp, hard state, is difficult to spin.So, must carry out the improvement and the upgrading of fiber condition (flexibility, smoothness, bulkiness and spinnability) to the flax fibre after coming unstuck, can spin high yarn count, high performance ramie yarn.Generally need make used additives and health that flax fibre is carried out soft treatment.Craft commonly used at present comprises following two kinds: a kind of is humidification heap storage regimen; This method uses the humidification heap storage that flax fibre is carried out health usually; Promptly at ambient temperature flax fibre is carried out the humidification health, make auxiliary agent fully infiltrate through flax fibre inside, reach the health effect.This technology utilization capillary effect and the osmosis of finish of fiber, make its even distribution, fiber obtains required moisture regain and stress relaxation under the state of banking up for a long time simultaneously, has improved spinning performance.That but this technology expends time in is long, efficient is low, and uniformity is very poor.A kind of in addition is conventional regimen fast, is meant and adopts moist steam that fiber is handled.Because the moist steam temperature is lower, and contains a large amount of water droplets, the water droplet of its generation is prone to stick on the fiber, not only permeates inhomogeneously, also is prone to cause fiber humidity excessive, and inside and outside moisture regain is inconsistent.Health finishes the back fiber need carry out the nature placement, with the moisture evaporation on flax fibre surface, thereby avoids the moisture regain on flax fibre surface excessive, influences follow-up spinning processing.
Summary of the invention
To the problems referred to above, the purpose of this invention is to provide a kind of fast, efficient, the uniform permeation curing of fibrilia method of infiltration and device.
For realizing above-mentioned purpose, the present invention takes following technical scheme: a kind of permeation curing of fibrilia method may further comprise the steps: 1) flax fibre is placed on the flax fibre stacking adapter, and sends into and close hermatic door in the tank body; 2) through water injection valve water filling in tank body, water surface elevation maintains the water level range of setting, and is positioned at the below of flax fibre; 3) opening the heating valve, is the water heating in the tank body through heater, and the water vapour penetration that can produce after the water in the tank body is heated is to each position of flax fibre; 4) temperature of control in the tank body, temperature, is set in 30～240min the conditioned time of flax fibre according to the saturated vapour pressure in the temp controlling tank body of setting 40～145 ℃ interior setting; 5) after the health operation is accomplished, open air bleeding valve, and open the draining valve draining, open hermatic door at last, take out the stacking adapter that is stacked with flax fibre, naturally cooling.
Said temperature is set in 75～125 ℃, and said conditioned time is set in 60～180min.
Said health operation is divided into two stages: the phase I: the control temperature in the tank body is set in 30～95 ℃, and the health operating time is set in 5～60min; In the second stage: the control temperature in the tank body is set in 70～125 ℃, and the health operating time is set in 30～120min.
Said health operation is divided into two stages: the phase I: the control temperature in the tank body is set in 30～95 ℃, and the health operating time is set in 5～60min; In the second stage: the control temperature in the tank body is set in 70～125 ℃, and the health operating time is set in 30～120min.
The flax fibre of handling is a kind of in hemp, ramie, jute, Tong fiber crops, bluish dogbane, bluish dogbane, the linen fibre.
A kind of permeation curing of fibrilia device; It is characterized in that: it comprises a sealed horizontal tank body; The bottom water filling of said tank body; Water surface top is provided with a flax fibre stacking adapter, and said tank body is provided with water injection valve, draining valve, heater, fluid level control device, temperature control equipment and pressure control device, and said heater is arranged in the water of said tank body; Said temperature control equipment comprises the temperature sensor that is arranged on said tank body internal upper part and is arranged on the temperature indicator on the said tank body that said pressure control device comprises the vavuum pump that is communicated with said tank body and is arranged on pressure sensor, safety valve and the air bleeding valve on the tank body; The one or both ends of said tank body are provided with hermatic door.
The top of said tank body is arc-shaped surface or ridge shape inclined-plane.
Said stacking adapter is that a mesh through stent support is dull and stereotyped, or one respectively wear mesh casing, or one be suspended at the hanger in the said tank body through hook.
Said heater comprises that one is arranged on the electric heater in the said tank body water; Or a heating pipe who in said tank body water, is provided with, said heating pipe is arranged on the heating source of tank body outside through a heating valve connection one.
The present invention is owing to take above technical scheme; It has the following advantages: 1, the present invention is owing to be provided with a sealed horizontal tank body; Water filling in tank body, and flax fibre is deposited in water surface top, through heater the heating in the tank body is produced steam; And, therefore can permeate health to flax fibre through vapours through the vacuum under the relative temperature in the control tank body.2, the present invention is controlled at 40～145 ℃ with the temperature in the tank body; The time of health operation is controlled at 30～240min; Because the relative humidity the when moisture in the saturated vapor reaches capacity is 100%, therefore can with relative humidity be temperature, time and vacuum degree control in 100% the airtight tank body an optimum state, make it have very strong penetrating power; Make heat energy, moisture and other finish be penetrated into flax fibre inside fast, fully, equably; It is consistent to reach inside and outside humidity, guarantees that flax fibre obtains sufficient health, is prone to the problem crisp, easily broken, that difficulty is spun thereby solved flax fibre.3, the present invention is provided with hermatic door in the one or both ends of tank body; Vavuum pump, heating source and various controlled observation devices etc. are set outside tank body; Therefore can guarantee the various process conditions in the health process of the present invention effectively; Accurately control the oil-containing regain of flax fibre, improve the flax fibre quality after the present invention handles effectively.4, various flax fibre stacking adapters that provide in the tank body of apparatus of the present invention and guide rail etc. can make flax fibre put evenly and easily it sent in the tank body, make the whole operation process operation flexible, have reduced labour intensity effectively.5, therefore the tank body of apparatus of the present invention can prevent that condensing drip from dropping on the flax fibre owing to be arranged to an arc-shaped surface or a ridge shape inclined-plane, has further avoided the fiber inconsistent phenomenon that gets damp again.6, the inventive method can also be carried out stage by stage; Can control lower temperature like this; Remedy the defective that saturated vapor can't take place when low water temperature through pressure adjustment, guaranteed that health is in equably in the saturated vapor atmosphere all the time, can reach equally and permeate the health effect preferably; Also practice thrift consumption of heat energy, saved conditioned time.Health speed of the present invention is fast, and fiber process is even, and production efficiency is high, and health processing back fiber flexibility is high, has improved follow-up carding efficiency, has improved fiber quality, and the present invention can be widely used in the various flax fibre process.
Description of drawings
Fig. 1 is the air pressure of saturated vapor and the corresponding relation figure of temperature
Fig. 2 is the structural representation of apparatus of the present invention
Fig. 3 is the structural representation of an embodiment of apparatus of the present invention
Fig. 4 is the control block diagram of apparatus of the present invention
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.
As shown in Figure 1, when the air pressure of water vapour and temperature were the point on the saturated vapor curve, water vapour was in saturation state.The present invention is according to this principle; Flax fibre is placed in the airtight tank body, through controlling the temperature of water vapour in the airtight tank body, and regulates the vapour pressure in the airtight tank body simultaneously; Make the water vapour in the airtight tank body be in saturation state all the time, with efficiently, equably flax fibre is permeated health.
As shown in Figure 2, apparatus of the present invention comprise a sealed horizontal tank body 1, and the top of tank body 1 is arc-shaped surface or ridge shape inclined-plane, can prevent that like this condensing drip from dropping on the fiber, cause get damp again inconsistent phenomenon of fiber to take place.In tank body 1, be provided with a flax fibre stacking adapter 2, stacking adapter 2 can be that a mesh through stent support is dull and stereotyped, also can be one respectively to wear the casing of mesh, can also be one to be suspended at the hanger in the tank body 1 through hook.Water filling in tank body 1 during the health operation, tank body 1 bottom can form a tank by nature.Tank body 1 is provided with water injection valve 3, draining valve 4, heater 5, fluid level control device 6, temperature control equipment 7 and pressure control device 8.The one or both ends of tank body 1 are provided with hermatic door 9, are used for placing or taking out flax fibre, on the hermatic door 9 window can be set, and observe with convenient.In tank body 1, the guide rail (not shown) can be set, when putting into, when taking out the stacking adapter 2 that piles with flax fibre, can pushing easily, pull out through guide rail.
As shown in Figure 3; Heater 5 of the present invention comprises that one is arranged on the heating pipe 51 in tank body 1 water; Heating pipe 51 two ends are arranged on the heating source 52 of pipeline outside through pipeline connection one; One heating valve 53 being set on the pipeline between the two, opening heating valve 53, can be the water heating in the tank body 1 through thermal mediums such as elevated temperature heat steam or high-temp liquids just.Heater 5 of the present invention also can be the good electric heater of a heat conductivility 54 (as shown in Figure 2), and heater 5 can also be taked other heat form.
Like Fig. 2, shown in Figure 3, fluid level control device 6 of the present invention comprises the liquid level sensor 61 that is arranged in the tank body 1 and is arranged on the liquid level display 62 on the tank body 1.Liquid level sensor 61 can be a float that swims in the water surface, through the liquid level display 62 that is connected with float, and the water level in can observing in the tank at any time.Temperature control equipment 7 of the present invention comprise one be arranged on tank body 1 internal upper part temperature sensor 71 and be arranged on the temperature indicator 72 on the tank body 1.Pressure control device 8 of the present invention comprises the vavuum pump 81 that is arranged on outside the tank body 1, and it is provided with pressure sensor 82 through pipeline connection tank body 1 in tank body 1, and tank body 1 is provided with pressure display unit 83, safety valve 84 and air bleeding valve 85.In the foregoing description, also be provided with the timer (not shown) on the tank body 1, be used to control conditioned time.
In the foregoing description; As shown in Figure 4; Can the heating valve 53 in water injection valve 3, draining valve 4, the heater 5, the liquid level sensor 61 in the fluid level control device 6, temperature sensor 71 and the vavuum pump 81 in the pressure control device 8, pressure sensor 82 and the air bleeding valve 85 in the temperature control equipment 7 be electrically connected to respectively on the computer control system 10.Be set with temperature, saturated vapour pressure, water level range and the conditioned time corresponding with temperature in the computer control system 10, the water level maximum in the tank will be lower than the bottoms level of flax fibre stacking adapter 2.The data that liquid level sensor 61, temperature sensor 71 and pressure sensor 82 collect all are transported in the computer 10, can be controlled automatically water injection valve 3, draining valve 4, heating valve 53, vavuum pump 81 and air bleeding valve 85 according to setting value by computer control system 10.Below in conjunction with the step of the inventive method when the automatic control operation, the control flow of control of the present invention system is described:
When the present invention permeates health to flax fibre, mainly may further comprise the steps:
1) flax fibre is placed on one and stacks on the device 2, and stacking adapter 2 is sent in the tank body 1, close hermatic door 9 then.
2) in computer control system 10, be set with temperature, saturated vapour pressure, water level range and the conditioned time corresponding with temperature.
3) open computer control system 10; Computer control system 10 is through control water injection valve 3; Begin water filling in tank body 1, computer control system 10 receives after liquid level that liquid level sensor 71 collects reaches the maximum of designated water level scope, can close Water filling valve 3 automatically; In the health process,, can open water injection valve 3 automatically and keep the skin wet if after the liquid level that water evaporates collects liquid level sensor 71 reaches the minimum of a value of designated water level scope.Tank body 1 outside liquid level display 62 shows the liquid level information in the tank body 1 synchronously.
4) after water filling is accomplished; The heating valve 53 of computer control system 10 control heaters 5 is opened; The elevated temperature heat steam of heating source 52 or high-temp liquid begin to circulate through heating pipe 51; Give the heating of the water in the tank body 1, the temperature information that the temperature sensor 71 of temperature control equipment 7 will be gathered in the tank body 1 flows to computer control system 10, and the pressure sensor 82 of pressure control device 8 is with the steam pressure information conveyance computer control system of collecting 10 simultaneously; Judge by computer control system 10 whether the temperature in the tank body 1 has reached step 2) temperature set; And then whether control heating valve 53 need close or open again; Simultaneous computer control system 10 is according to the saturated vapour pressure in the saturated vapour pressure control tank body of setting 1 corresponding with temperature; And then whether control vavuum pump 81 need to open, and maintains saturation state all the time to guarantee the water vapour in the tank body 1.Tank body 1 outside temperature indicator 52 shows temperature and steam pressure information in the tank body 1 synchronously with pressure display unit 83.
5) health operation reaches step 2) after time of being provided with, computer control system 10 control air bleeding valves 85 are opened, and control draining valve 4 is opened, draining, opens hermatic door 9 at last, takes out the stacking adapter 2 that is stacked with flax fibre, cools off naturally.
In the above-mentioned health operating process, in case wherein arbitrary device breaks down, the gas pressure in the tank body 1 exceeds the maximum pressure scope that can bear, and safety valve 84 just can be opened pressure release automatically.
The present invention can be health operation in the process of health operation, also can be to carry out the health operation stage by stage, illustrates below.
1: health of embodiment operation
To pass through the flax fibre after mechanical degumming, biology and/or thermophilic digestion come unstuck, divide fine washing, mechanical degummed ramie softening, last linen softening oil oil; Send in the tank body 1 through stacking adapter 2, close hermatic door 9 water fillings after, the water of opening heater 5 and be in the tank body 1 heats; Through temperature control equipment 6 temperature in the tank body 1 is controlled at 40～145 ℃; Be preferably 75～125 ℃, through pressure control device 8 with the Pressure control in the tank body 1 under saturated vapour pressure value corresponding this temperature conditions under, and under this temperature and pressure is regulated, carry out health and operate; The time set of health operation is 30～240min, is preferably 60～180min.
Embodiment 2: health operation stage by stage
To pass through the flax fibre after mechanical degumming, biology and/or thermophilic digestion come unstuck, divide fine washing and mechanical degummed ramie softening, send in the tank body 1 through stacking adapter 2, close hermatic door 9 water fillings after, the water of opening heater 5 and be in the tank body 1 heats;
Phase I: the temperature in the tank body 1 is controlled at 30～95 ℃, is preferably 55～75 ℃, and the time of health operation is 5～60min, is preferably 15～45min;
In the second stage: the temperature in the tank body 1 is controlled at 70～125 ℃, is preferably 80～105 ℃, and the time of health operation is 30～120min, is preferably 45～90min.
The flax fibre that above-mentioned health is handled can be a kind of in hemp, ramie, jute, Tong fiber crops, bluish dogbane, bluish dogbane, the linen fibre etc.
Be the embodiment under the different health-preserving conditions below, all with same batch through come unstuck, mechanical degummed ramie softening and oil after the hemp degummed ramie as the health sample.
Embodiment 1: stack each item performance indications (as shown in table 1) of health after 10 days naturally 75% time with 30 ℃ of room temperatures, relative humidity before the health specimen test.
Table 1
Can be found out that by last table the intensity of fiber increases after the health, the division degree increases, and simultaneously big or small runner reduces, and this explanation health is very big to the raising effect of flax fibre performance.
Embodiment 2: the health sample is the performance indications (as shown in table 2) when temperature is respectively health 60min under the saturated vapor of 55 ℃, 80 ℃, 105 ℃, 115 ℃ and 125 ℃
Table 2
Can be drawn by last table, brute force reduces along with the raising of temperature, and the increase of fiber yellowing degree, and this is because the rising of temperature aggravates fibre damage, thereby causes powerful decline.Intensity is fallen after rising along with the rising of temperature, and the effect that in the time of 80 ℃, exists is better.Because under the lower temperature, the finish of fiber surface can not fully be penetrated into fibrous inside, fibre stress is lax insufficient, so intensity is lower; And temperature can cause fiber oxidation tendering after raising, and intensity also can reduce.The division degree reduces along with the rising of temperature, this possibly be since interfibrous colloid along with the rising of temperature crosslinked again causing.In like manner, the runner ratio also will raise to some extent.But the fibre property after all healths is good than health not all.
Embodiment 3: the health sample is the performance indications (as shown in table 3) when health 30min, 60min, 90min, 120min, 180min under the saturated vapor of identical 80 ℃ of temperature.
Table 3
| Time (min) | Intensity (cN/D) | Division degree (Nm) | Big runner | Little runner |
| Ratio (%) | Ratio (%) | |||
| ?30 | 5.30 | 713 | 7.16 | 0.18 |
| ?60 | 5.48 | 730 | 7.87 | 0.18 |
| ?90 | 4.75 | 728 | 12.89 | 0.02 |
| ?120 | 4.84 | 720 | 13.72 | 0.60 |
| ?180 | 4.79 | 722 | 14.78 | 0.75 |
Can be drawn by last table, powerful prolongation along with the time decreases, and the processing time is that 30min exists powerful peak 383.6N in test specification, and the prolongation of time causes the tendering aggravation of fiber oxidation, powerful decline.Little at 30min and the Strength Changes of 60min under the processing time, reduce along with the prolongation of conditioned time then.Along with the prolongation of time, the finish of fiber surface is penetrated into inside gradually, and fiber top defective obtains repairing, and relative friction coefficient reduces between fiber, thereby intensity increases powerful the reduction.In time the prolongation in test specification of the division degree of fiber is basicly stable, but the runner ratio shows a rising trend.
Embodiment 4: the health sample is to be that temperature is respectively health 20min under 30 ℃, 45 ℃, 55 ℃, 65 ℃, 90 ℃ the saturated vapor at the phase I health-preserving condition, is warming up to the performance indications (as shown in table 4) of health 60min under 80 ℃ of saturated vapors then.
Table 4
Can find out that from last table intensity changes little with pressure in test specification.The division degree increases with the pressure volume and reduces, and the runner ratio increases with the increase of pressure, and this possibly be that fiber moment relaxation resistance is big more, and its division degree and runner ratio are good more.All in all, segmentation health effect is than single better effects if.
Above-mentioned each embodiment only is used to explain the present invention; Wherein the structure of each parts, connected mode, processing step all can change to some extent; Every equivalents of on the basis of technical scheme of the present invention, carrying out and improvement all should not got rid of outside protection scope of the present invention.
Claims (7)
1. permeation curing of fibrilia method may further comprise the steps:
1) flax fibre is placed on the flax fibre stacking adapter, and sends into and close hermatic door in the tank body;
2) through water injection valve water filling in tank body, water surface elevation maintains the water level range of setting, and is positioned at the below of flax fibre;
3) opening the heating valve, is the water heating in the tank body through heater, and the water vapour penetration that can produce after the water in the tank body is heated is to each position of flax fibre;
4) the health operation is divided into two stages: the phase I: the control temperature in the tank body is set in 30～95 ℃, and the health operating time is set in 5～60min; In the second stage: the control temperature in the tank body is set in 70～125 ℃, and the health operating time is set in 30～120min;
5) after the health operation is accomplished, open air bleeding valve, and open the draining valve draining, open hermatic door at last, take out the stacking adapter that is stacked with flax fibre, naturally cooling.
2. a kind of permeation curing of fibrilia method as claimed in claim 1 is characterized in that: the flax fibre of processing is a kind of in hemp, ramie, jute, Tong fiber crops, bluish dogbane, bluish dogbane, the linen fibre.
3. permeation curing of fibrilia device of realizing claim 1 or 2 said methods; It is characterized in that: it comprises a sealed horizontal tank body; The bottom water filling of said tank body; Water surface top is provided with a flax fibre stacking adapter; Said tank body is provided with water injection valve, draining valve, heater, fluid level control device, temperature control equipment and pressure control device; Said heater is arranged in the water of said tank body, and said temperature control equipment comprises the temperature sensor that is arranged on said tank body internal upper part and be arranged on the temperature indicator on the said tank body that said pressure control device comprises the vavuum pump that is communicated with said tank body and is arranged on pressure sensor, safety valve and the air bleeding valve on the tank body; The one or both ends of said tank body are provided with hermatic door.
4. a kind of permeation curing of fibrilia device as claimed in claim 3 is characterized in that: the top of said tank body is arc-shaped surface or ridge shape inclined-plane.
5. a kind of permeation curing of fibrilia device as claimed in claim 3 is characterized in that: said stacking adapter is that a mesh through stent support is dull and stereotyped, or one respectively wear mesh casing, or one be suspended at the hanger in the said tank body through hook.
6. a kind of permeation curing of fibrilia device as claimed in claim 4 is characterized in that: said stacking adapter is that a mesh through stent support is dull and stereotyped, or one respectively wear mesh casing, or one be suspended at the hanger in the said tank body through hook.
7. like claim 3 or 4 or 5 or 6 described a kind of permeation curing of fibrilia devices, it is characterized in that: said heater comprises that one is arranged on the electric heater in the said tank body water; Or a heating pipe who in said tank body water, is provided with, said heating pipe is arranged on the heating source of tank body outside through a heating valve connection one.
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| CN2010101000871A CN101838894B (en) | 2010-01-22 | 2010-01-22 | Method and device for permeation curing of fibrilia |
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| CN101851787B (en) * | 2010-01-22 | 2012-07-04 | 汉麻产业投资控股有限公司 | Bast fiber production line |
| CN107095534A (en) * | 2017-04-07 | 2017-08-29 | 王达宏 | The preparation method of health care's pillow |
| CN107174747A (en) * | 2017-04-07 | 2017-09-19 | 王达宏 | The preparation method of health care's pad |
| CN107447564B (en) * | 2017-08-21 | 2020-07-03 | 山西平尧麻笺有限公司 | Hemp steaming method |
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| GB623367A (en) * | 1941-03-10 | 1949-05-17 | Theofiel Isidoor Sophie Vermei | Method and apparatus for the aerobic retting of flax and other fibrous plants |
| CN101050549A (en) * | 2007-04-28 | 2007-10-10 | 青岛大学 | Biologic apparatus for preparing pure natural fiber |
| CN101255609A (en) * | 2008-03-18 | 2008-09-03 | 宋桂玲 | Flash-explosion hemp degelatinizing technology with cryogenic processing and device |
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Address after: 100010 69, Dongcheng District, Beijing. Co-patentee after: Xishuangbanna Yagor Industrial Co.,Ltd. Patentee after: THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTMENT OF THE PLA Co-patentee after: FONG'S NATIONAL ENGINEERING (GUANGDONG) Co.,Ltd. Co-patentee after: NINGBO YAK TECHNOLOGY INDUSTRIAL Co.,Ltd. Address before: 100010 69, Dongcheng District, Beijing. Co-patentee before: CHINA-HEMP INDUSTRIAL INVESTMENT HOLDINGS Co.,Ltd. Patentee before: THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTMENT OF THE PLA Co-patentee before: FONG'S NATIONAL ENGINEERING (GUANGDONG) Co.,Ltd. Co-patentee before: NINGBO YAK TECHNOLOGY INDUSTRIAL Co.,Ltd. |
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Effective date of registration: 20190417 Address after: 100010 69 Hutong warehouse, Dongcheng District, Beijing Co-patentee after: WUHAN HEMP BIOLOGICAL TECHNOLOGY Co.,Ltd. Patentee after: INSTITUTE OF QUARTERMASTER ENGINEERING TECHNOLOGY, INSTITUTE OF SYSTEMS ENGINEERING, ACADEMY OF MILITARY SCIENCES Co-patentee after: FONG'S NATIONAL ENGINEERING (GUANGDONG) Co.,Ltd. Co-patentee after: Ningbo hemp Biotechnology Co.,Ltd. Address before: 100010 69, Dongcheng District, Beijing. Co-patentee before: Xishuangbanna Yagor Industrial Co.,Ltd. Patentee before: THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTMENT OF THE PLA Co-patentee before: FONG'S NATIONAL ENGINEERING (GUANGDONG) Co.,Ltd. Co-patentee before: NINGBO YAK TECHNOLOGY INDUSTRIAL Co.,Ltd. |