CN1468983A - Polypropylene fiber with mosquito repelling function - Google Patents
Polypropylene fiber with mosquito repelling function Download PDFInfo
- Publication number
- CN1468983A CN1468983A CNA021360499A CN02136049A CN1468983A CN 1468983 A CN1468983 A CN 1468983A CN A021360499 A CNA021360499 A CN A021360499A CN 02136049 A CN02136049 A CN 02136049A CN 1468983 A CN1468983 A CN 1468983A
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- Prior art keywords
- fiber
- culicifuge
- fibre
- polypropylene
- polypropylene fibre
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000835 fiber Substances 0.000 title claims abstract description 69
- -1 Polypropylene Polymers 0.000 title claims abstract description 29
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 29
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 29
- 241000255925 Diptera Species 0.000 title claims abstract description 21
- 230000001846 repelling effect Effects 0.000 title claims abstract description 11
- FSGNOVKGEXRRHD-UHFFFAOYSA-N [2,2,2-trichloro-1-(3,4-dichlorophenyl)ethyl] acetate Chemical compound CC(=O)OC(C(Cl)(Cl)Cl)C1=CC=C(Cl)C(Cl)=C1 FSGNOVKGEXRRHD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 8
- GQNBIMLHUAWKHJ-UHFFFAOYSA-N [4-(methoxymethyl)phenyl]methyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate Chemical compound C1=CC(COC)=CC=C1COC(=O)C1C(C)(C)C1C=C(C)C GQNBIMLHUAWKHJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000002074 melt spinning Methods 0.000 claims abstract description 5
- 238000005453 pelletization Methods 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 3
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 abstract 2
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 abstract 1
- 229960001826 dimethylphthalate Drugs 0.000 abstract 1
- 238000009987 spinning Methods 0.000 description 14
- 239000004594 Masterbatch (MB) Substances 0.000 description 11
- 238000005469 granulation Methods 0.000 description 8
- 230000003179 granulation Effects 0.000 description 8
- 239000004744 fabric Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000000077 insect repellent Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000003963 antioxidant agent Substances 0.000 description 4
- 230000003078 antioxidant effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 241000256113 Culicidae Species 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000208202 Linaceae Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000011430 maximum method Methods 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The polypropylene fiber with mosquito repelling function is produced with polypropylene and mosquito repellant through mixing, melt pelletizing and melt spinning. The fiber contains mosquito repellant of the amount of 1.0-30 wt% selected from dimethyl phthalate, benzethazet acetofenate, methothrin or their mixture. The fiber may be pre-oriented POY fiber of filament fibrousness 1.0-4.0 dtex, further processed drafted DT fiber or stretch DTY fiber of filament fibrousness 0.5-3.0 dtex, or short staple of filament fibrousness 1.0-4.0 dtex. Compared with available technology, the present invention is superior in that the mosquito repellant is distributed homogeneously inside the fiber, rather than on the surface, and thus is wash resistant.
Description
Technical field
The present invention relates to a kind of polypropylene fibre, particularly in polypropylene fibre, contain the polypropylene fibre with mosquito repelling function of culicifuges such as repefral, benzethazet acetofenate or methothrin equably with mosquito repelling function.
Background technology
For avoiding by bite by mosquitos, the gas mosquito repellent is that present people adopt maximum methods, and early stage mosquito repellent gas is carried secretly out by flue gas mostly, and is bigger to the harm of human body.By constantly improving, adopt electrical heating low toxicity or nontoxic organic culicifuge directly to volatilize now mostly and produce culicifuge gas, the harm of human body has been reduced to low-down degree.But the method for gas mosquito repellent usually can only be in indoor use, because can't make mosquito repellent gas reach enough concentration because air velocity is very fast in the open air.In the prior art, existing a kind of very suitable field work or sports person avoid the method for bite by mosquitos, i.e. operating personnel's dress has the clothes of keeping away the mosquito effect.It is usually this that to have the clothes of keeping away the mosquito effect be owing to contain culicifuge on the fabric fibre, introduced a kind of polyester fiber with function of driving mosquitoes as Japanese patent application JP 10219565, this polyester fiber is to contain by fiber under glass transition temperature that heat treated obtained more than 10 minutes in the solution of culicifuge.Chinese patent 1102767A has introduced a kind of manufacture method of mosquito-repelling socks, after in reactor, polyvinyl alcohol, polyvinyl acetate, mosquito repellent, dodecyl sodium sulfate being added water and making micro-capsule dispersion liquid, adding adhesive, bleeding agent and water again makes and keeps away mosquito liquid, after socks are soaked into therein, extract the whole moulding of scalding again.Have the fiber of mosquito repelling function or fabric in the prior art and generally be by drying or make protomere that is enclosed with culicifuge to stick on fiber or the fabric after fiber or fabric are flooded in the culicifuge soup and make, its ubiquitous problem is that culicifuge only adheres on fiber surface, and wash durability is relatively poor.
Summary of the invention
Technical problem to be solved by this invention provides a kind of polypropylene fibre with mosquito repelling function, contains culicifuge in the fiber equably rather than only is attached to the surface, and wash durability obviously improves, thereby can overcome the existing in prior technology defective effectively.
Below be the technical scheme that the present invention solves the problems of the technologies described above:
A kind of polypropylene fibre with mosquito repelling function, it is characterized in that this polypropylene fibre evenly mixes the back melt pelletization by acrylic resin and culicifuge and obtains through melt spinning, contain culicifuge in the fiber equably, the content of culicifuge is 1.0～3.0wt% in the fiber, and culicifuge is taken from a kind of compound in repefral, benzethazet acetofenate or the methothrin or the mixture of two or more compounds.
The content of culicifuge is preferably 1.0～2.5wt% in the above-mentioned fiber, fiber can be that filament number is the pre-oriented yarn POY of 1.0～4.0dtex, or further be processed into drafted fibre DT or the elastic filament DTY that filament number is 0.5～3.0dtex, or fiber number is the staple fibre of 1.0～4.0dtex.
The manufacturing of fiber mainly comprises granulation and spinning two parts.Granulation process is that culicifuge is warm equably in polypropylene particles, and the content of culicifuge can be made the raw material that is directly used in spinning by required scope in the particle, also can be made into the higher master batch of content, then with common pp material co-blended spinning.In order to ensure good spinning properties, generally when granulation, also should add an amount of molecular weight regulator, antioxidant, owing to adopt granulation for powders, also should add an amount of dispersant during granulation, these are identical with the requirement that spins common polypropylene fibre all.
When the higher master batch of preparation culicifuge concentration, the content≤10wt% of culicifuge is advisable in the master batch, and polypropylene will decrease to the containing degree of culicifuge during too high levels.Usually adopt screw extruder to carry out the granulation of blend heating and melting and make master batch, heating-up temperature is 150～210 ℃.
Conventional molten spinning is then adopted in spinning, and spinning temperature is generally 220～260 ℃, and winding speed is generally 700～2500m/min.
According to different needs, fiber can be made into staple fibre, pre-oriented yarn POY, drafted fibre DT and elastic filament DTY, and the after-processing technology of staple fibre, drafted fibre DT and elastic filament is basic identical with existing similar polypropylene fibre processing technology.
Compared with prior art, advantage of the present invention is that culicifuge is present in the fiber equably rather than only is attached to the surface, and wash durability obviously improves.In addition, because the polypropylene fibre structure is comparatively loose, exist irregular micropore in the fiber, the culicifuge composition can discharge by micropore lentamente, keeps away the mosquito effect and can keep the longer time.
Because polypropylene fibre and other natural fabric and synthetic fiber and good blending spinning property, polypropylene fibre with mosquito repelling function provided by the invention can with natural fabrics such as cotton, wool, flax, or with artificial fibre blending such as terylene, acrylic fibers, polyamide fibre, viscose glue, can make sock and glove, clothes, tent, door curtain, curtain or mosquito net with mosquito repelling function or the like.
The specific embodiment [embodiment 1～12]
(preparation of master batch and full granulation)
Culicifuge and polypropylene powder are put into impeller mix, during add an amount of antioxidant four [3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] and an amount of molecular weight regulator 2,5-dimethyl 2,5-diperoxy tert-butyl group hexane.The following column weight amount of the addition of antioxidant and molecular weight regulator is recently determined:
Polypropylene: antioxidant=100: 0.4～0.6
Polypropylene: molecular weight regulator=100: 0.01～0.02
This mixture adopts double screw extruder melt pelletization under 150～210 ℃ of temperature, makes master batch.Culicifuge and total content concrete in each embodiment master batch are listed in table 1.
Adopt screw extruder to carry out the blended melting granulation after above-mentioned master batch that obtains and the plain polypropylene mix particles and make spinning material, the heating-up temperature of screw extruder is 150～210 ℃, the index of the weight ratio of each embodiment master batch and plain polypropylene particle and the spinning material that obtains is listed in table 2, and melt flow rate (MFR) in the table 2 (MFR) is measured by GB GB3682-83.Table 1.
Table 2.
[embodiment 13～20]
| Culicifuge | Culicifuge total content (wt%) | |
| Embodiment 1 | Repefral | ????5 |
| Embodiment 2 | Benzethazet acetofenate | ????5 |
| Embodiment 3 | Methothrin | ????5 |
| Embodiment 4 | Benzethazet acetofenate | ????10 |
| Embodiment 5 | Repefral/methothrin (weight ratio: 50/50) | ????5 |
| Master batch raw material (embodiment X) | Master batch/plain polypropylene (weight ratio) | ????MFR ??(g/10min) | ?????Tm ????(℃) | |
| Embodiment 6 | ??????1 | ?????20/80 | ?????63.5 | ????167.2 |
| Embodiment 7 | ??????1 | ?????30/70 | ?????67.5 | ????169.5 |
| Embodiment 8 | ??????1 | ?????40/60 | ?????66.4 | ????167.9 |
| Embodiment 9 | ??????2 | ?????50/50 | ?????68.7 | ????168.4 |
| Embodiment 10 | ??????3 | ?????30/70 | ?????69.3 | ????169.1 |
| Embodiment 11 | ??????4 | ?????30/70 | ?????64.5 | ????170.5 |
| Embodiment 12 | ??????5 | ?????40/60 | ?????65.7 | ????166.8 |
(preparation of fiber)
The spinning material that the foregoing description is obtained after drying in screw extruder melt spinning make pre-oriented yarn POY, part POY silk further is processed into drafted fibre DT or is processed into elastic filament DTY.Or after drying in screw extruder melt spinning make staple fibre.Spinning temperature is 220～260 ℃.
The processing technology of each embodiment fiber and the part index number of fiber see Table 3 and table 4.Table 3.
| Spinning material (embodiment X) | ????V 1 | ???V 2 | ????R | ???D/Y | ????H 1/H 2 | |
| Embodiment 13 | ????6 | ??2500 | ??450 | ??1.56 | ???1.42 | ????135/120 |
| Embodiment 14 | ????7 | ??2500 | ??400 | ??1.54 | ???1.42 | ????130/110 |
| Embodiment 15 | ????8 | ??2500 | ??400 | ??1.48 | ???1.46 | ????140/120 |
| Embodiment 16 | ????10 | ??2500 | ??450 | ??1.54 | ???1.42 | ????135/140 |
| Embodiment 17 | ????12 | ??2500 | ??400 | ??1.53 | ???1.42 | ????130/110 |
| Embodiment 18 | ????8 | ??2500 | ??400 | ??1.48 | ????/ | ????70/100 |
| Embodiment 19 | ????9 | ??700 | ???/ | ??4.5 | ????/ | ??????/ |
| Embodiment 20 | ????11 | ??750 | ???/ | ??4.8 | ????/ | ??????/ |
In the table 3: V
1=spinning silk winding speed (m/min)
V
2=drawing-off/deformation processing speed (m/min)
R=drafting multiple
D/Y=frictional disk linear velocity/feeding wire speed
H
1/ H
2=temperature of heat plate/hot plate temperature (to the DT silk),
First heater temperature/second heater temperature (to the DTY silk) table 4.
| Product | Filament number (dtex) | Fracture strength (CN/dtex) | Culicifuge content (wt%) in the fiber | Fiber is kept away the mosquito effect | |
| Embodiment 13 | ???DTY | ??1.13 | ????2.71 | ????1.0 | Have |
| Embodiment 14 | ???DTY | ??1.45 | ????2.59 | ????1.5 | Good |
| Embodiment 15 | ???DTY | ??1.59 | ????2.45 | ????2.0 | Good |
| Embodiment 16 | ???DTY | ??1.37 | ????2.66 | ????1.5 | Good |
| Embodiment 17 | ???DTY | ??1.53 | ????2.56 | ????2.0 | Good |
| Embodiment 18 | ???DT | ??2.53 | ????3.12 | ????2.0 | Good |
| Embodiment 19 | Staple fibre | ??3.01 | ????3.89 | ????2.5 | Good |
| Embodiment 20 | Staple fibre | ??3.68 | ????3.50 | ????3.0 | Good |
Claims (5)
1, a kind of polypropylene fibre with mosquito repelling function, it is characterized in that this polypropylene fibre evenly mixes the back melt pelletization by acrylic resin and culicifuge and obtains through melt spinning, contain culicifuge in the fiber equably, the content of culicifuge is 1.0～3.0wt% in the fiber, and culicifuge is taken from a kind of compound in repefral, benzethazet acetofenate or the methothrin or the mixture of two or more compounds.
2, polypropylene fibre according to claim 1, the content that it is characterized in that culicifuge in the described fiber is 1.0～2.5wt%.
3,, it is characterized in that fiber is that filament number is the pre-oriented yarn POY of 1.0～4.0dtex according to the described polypropylene fibre of claim 1.
4,, it is characterized in that fiber is that filament number is drafted fibre DT or the elastic filament DTY of 0.5～3.0dtex according to the described polypropylene fibre of claim 1.
5,, it is characterized in that fiber is that fiber number is the staple fibre of 1.0～4.0dtex according to the described polypropylene fibre of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021360499A CN1180136C (en) | 2002-07-15 | 2002-07-15 | Polypropylene fiber with mosquito repelling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021360499A CN1180136C (en) | 2002-07-15 | 2002-07-15 | Polypropylene fiber with mosquito repelling function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1468983A true CN1468983A (en) | 2004-01-21 |
| CN1180136C CN1180136C (en) | 2004-12-15 |
Family
ID=34146283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021360499A Expired - Fee Related CN1180136C (en) | 2002-07-15 | 2002-07-15 | Polypropylene fiber with mosquito repelling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1180136C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102115951A (en) * | 2011-03-10 | 2011-07-06 | 江门市大自然纺织品有限公司 | Manufacturing method of long-acting mosquito-expelling textile |
| CN102383258A (en) * | 2011-09-22 | 2012-03-21 | 杨晓蓉 | Long-lasting insect repellent fabric and method for producing same |
| CN102618959A (en) * | 2012-03-20 | 2012-08-01 | 杭州鑫福纺织有限公司 | Mosquito-dispelling polyamide 6 fiber and preparation method thereof |
| CN102936759A (en) * | 2012-12-11 | 2013-02-20 | 江南大学 | Multifunctional polylactic acid (PLA) fiber and preparation method thereof |
| CN103696141A (en) * | 2013-12-10 | 2014-04-02 | 马鞍山湖滨无纺布科技有限公司 | Healthcare non-woven fabric and preparation method thereof |
| CN105821508A (en) * | 2016-05-19 | 2016-08-03 | 陆建益 | Sea mud-plant composite sterilizing and mosquito repelling polypropylene fiber and preparation method thereof |
| CN108677264A (en) * | 2018-06-04 | 2018-10-19 | 苏州市亚澳纤维科技有限公司 | A kind of pest-resistant fiber of weaving |
| CN115160686A (en) * | 2021-09-01 | 2022-10-11 | 深圳市奔象科技有限公司 | Mosquito repellent resin, fiber and processed mosquito repellent product |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344805C (en) * | 2005-11-11 | 2007-10-24 | 天津工业大学 | A kind of anti-mosquito stretched silk and its manufacturing method |
-
2002
- 2002-07-15 CN CNB021360499A patent/CN1180136C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102115951A (en) * | 2011-03-10 | 2011-07-06 | 江门市大自然纺织品有限公司 | Manufacturing method of long-acting mosquito-expelling textile |
| CN102115951B (en) * | 2011-03-10 | 2012-07-11 | 江门市大自然纺织品有限公司 | Manufacturing method of long-acting mosquito-expelling textile |
| CN102383258A (en) * | 2011-09-22 | 2012-03-21 | 杨晓蓉 | Long-lasting insect repellent fabric and method for producing same |
| CN102618959A (en) * | 2012-03-20 | 2012-08-01 | 杭州鑫福纺织有限公司 | Mosquito-dispelling polyamide 6 fiber and preparation method thereof |
| CN102936759A (en) * | 2012-12-11 | 2013-02-20 | 江南大学 | Multifunctional polylactic acid (PLA) fiber and preparation method thereof |
| CN102936759B (en) * | 2012-12-11 | 2015-05-13 | 江南大学 | Multifunctional polylactic acid (PLA) fiber and preparation method thereof |
| CN103696141A (en) * | 2013-12-10 | 2014-04-02 | 马鞍山湖滨无纺布科技有限公司 | Healthcare non-woven fabric and preparation method thereof |
| CN103696141B (en) * | 2013-12-10 | 2015-12-30 | 马鞍山湖滨无纺布科技有限公司 | A kind of health-care nonwoven fabric and preparation method thereof |
| CN105821508A (en) * | 2016-05-19 | 2016-08-03 | 陆建益 | Sea mud-plant composite sterilizing and mosquito repelling polypropylene fiber and preparation method thereof |
| CN108677264A (en) * | 2018-06-04 | 2018-10-19 | 苏州市亚澳纤维科技有限公司 | A kind of pest-resistant fiber of weaving |
| CN115160686A (en) * | 2021-09-01 | 2022-10-11 | 深圳市奔象科技有限公司 | Mosquito repellent resin, fiber and processed mosquito repellent product |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1180136C (en) | 2004-12-15 |
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Granted publication date: 20041215 Termination date: 20110715 |