CN1138034C - Conventional polyester spinning oil and preparation method thereof - Google Patents
Conventional polyester spinning oil and preparation method thereof Download PDFInfo
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- CN1138034C CN1138034C CNB991242807A CN99124280A CN1138034C CN 1138034 C CN1138034 C CN 1138034C CN B991242807 A CNB991242807 A CN B991242807A CN 99124280 A CN99124280 A CN 99124280A CN 1138034 C CN1138034 C CN 1138034C
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- Prior art keywords
- agent
- polyoxyethylene ether
- mixture
- phosphate
- oil
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- 238000009987 spinning Methods 0.000 title claims abstract description 29
- 229920000728 polyester Polymers 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 47
- 239000000654 additive Substances 0.000 claims abstract description 28
- 230000000996 additive effect Effects 0.000 claims abstract description 28
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 28
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 28
- -1 alcohol ester Chemical class 0.000 claims description 23
- 230000000740 bleeding effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 229920000570 polyether Polymers 0.000 claims description 12
- 239000003921 oil Substances 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 10
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 9
- 239000010452 phosphate Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 7
- 239000004359 castor oil Substances 0.000 claims description 7
- 235000019438 castor oil Nutrition 0.000 claims description 7
- POULHZVOKOAJMA-UHFFFAOYSA-M dodecanoate Chemical compound CCCCCCCCCCCC([O-])=O POULHZVOKOAJMA-UHFFFAOYSA-M 0.000 claims description 7
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 7
- 229940070765 laurate Drugs 0.000 claims description 7
- 239000001103 potassium chloride Substances 0.000 claims description 7
- 235000011164 potassium chloride Nutrition 0.000 claims description 7
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- RNMDNPCBIKJCQP-UHFFFAOYSA-N 5-nonyl-7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-ol Chemical compound C(CCCCCCCC)C1=C2C(=C(C=C1)O)O2 RNMDNPCBIKJCQP-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 239000002480 mineral oil Substances 0.000 claims description 4
- 235000010446 mineral oil Nutrition 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005642 Oleic acid Substances 0.000 claims description 3
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical compound [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 3
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000002216 antistatic agent Substances 0.000 abstract 2
- 238000009499 grossing Methods 0.000 abstract 2
- 238000005086 pumping Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 5
- 239000012209 synthetic fiber Substances 0.000 description 4
- 229920002994 synthetic fiber Polymers 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229920004933 Terylene® Polymers 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
A conventional polyester spinning oil agent and a manufacturing method thereof are disclosed, wherein the conventional polyester spinning oil agent comprises, by weight, 60-70% of a smoothing agent, 14-24% of an emulsifier, 5-11% of a bundling agent, 3-7% of an antistatic agent, 1-3% of a penetrating agent and 1-2% of an anticorrosive additive, and the manufacturing method comprises the following steps: firstly pumping accurately measured emulsifier, bundling agent and antistatic agent into a reaction kettle, heating to 40-70 ℃, uniformly stirring, pumping smoothing agent into the reaction kettle, stirring for 30-50 min, adding penetrant and anticorrosive additive, uniformly stirring, cooling, filtering and packaging to obtain the polyester spinning solution, which is suitable for polyester spinning process and equipment with spinning speed of 75D-1200M/min.
Description
The present invention relates to a kind of polyester conventional spinning oil and manufacture method thereof, belong to the auxiliary agent manufacturing technology field in the synthetic fiber process technology.
As everyone knows, because synthetic fiber do not have surface of natural fibers that special adhesiveness is arranged like that, therefore, in order to guarantee that synthetic fiber carry out spinning under certain condition smoothly, improve the quality of fibre property and silk, and improve the value of fibre, in spinning process, must use finish.Existing synthetic fiber finish because it constitutes the difference of component, is prone to lousiness, broken end phenomenon in the spinning application process, cause coiling and molding poor, and the high-class product rate is low, and corrosion phenomenon is serious, is difficult to adapt to the user demand of terylene spinning.
The purpose of this invention is to provide a kind of stable performance, good spinnability can satisfy the conventional spinning technique requirement of polyster fibre, effectively improves the polyester conventional spinning oil and the manufacture method thereof of terylene spinning quality.
The present invention is a polyester conventional spinning oil, mainly by smooth agent, and emulsifying agent, collecting agent, antistatic additive, bleeding agent, compositions such as anticorrosive additive, the percentage by weight that it is characterized in that each component is: smooth agent 60～70%, emulsifying agent 14～24%, collecting agent 5～11%, antistatic additive 3～7%, bleeding agent 1～3%, anticorrosive additive 1～2%.
Described smooth agent can be mineral oil, double base alcohol ester, triol ester, quaternary alcohol ester, the mixture of one or more in the end capped polyether.The effect of smooth agent can keep between fiber and the fiber, the suitable coefficient of friction between fiber and other contact components, improves level and smooth performance, helps carrying out smoothly of spin-drawing.
Described emulsifying agent can be castor oil polyoxyethylene ether, lauryl alcohol polyoxyethylene ether, polyoxyethylene nonylphenol ether, aliphatic acid polyethenoxy ether, the mixture of one or more in the butanols high-molecular weight atactic polyethers.The effect of emulsifying agent is that with the various components in the finish, particularly emulsified object smooth agent reaches balance by physical and chemical process, makes finish become even, transparent, stable oily solution in use.
Described collecting agent can be the polyethylene glycol Glycol Oleic Acid Ester, laurate polyoxyethylene ether, polyethylene glycol laurate dibasic acid esters, castor oil polyoxyethylene ether, the mixture of one or more in the octanol high-molecular weight atactic polyethers.The adding of collecting agent can improve the convergence and the flatness of finish, makes fiber not fluffy, at random in process, and fiber is played the obvolvent effect.
Described antistatic additive can be lauryl alcohol phosphate polyoxyethylene ether sylvite, hexadecanol phosphate kalium salt, octadecanol phosphate kalium salt, lauryl alcohol polyoxyethylene ether phosphate sylvite, the mixture of one or more in the amphoteric phosphate ammonium salt.The effect of antistatic additive is can be adsorbed on fiber surface in the high speed spinning process, increases the hygroscopicity of fiber, improves electric conductivity, reduces the accumulation of static.
Described bleeding agent can be carbon eight pure polyoxyethylene ether or carbon ten pure polyoxyethylene ether, or above-mentioned two kinds mixture.The adding of bleeding agent can make finish have stronger scouring of wool ability, makes fiber have good processing characteristics in processes such as starching, destarch, boiling-off, bleaching, dyeing.
Described anticorrosive additive can be silicone oil, modified organic silicon, higher alcohol, the mixture of one or more in the higher acid.The adding of anticorrosive additive can guarantee the use and the bin stability of finish, reduces the finish surface tension, improves stability of emulsion, prevents the finish corruption.
The manufacture method of polyester conventional spinning oil of the present invention can be: the percentage by weight of pressing each component, elder generation is with emulsifying agent, collecting agent, the antistatic additive suction reactor of accurate measurement, being heated to 40-70 ℃ stirs, again with in the smooth agent suction reactor, after stirring 30-50min, add bleeding agent and anticorrosive additive, the back cooling stirs, filter packing.
The present invention compared with prior art has following distinguishing feature and good effect:
1, finish is uniform and stable, and emulsion particle is thin, and good penetrability helps fiber and evenly oils;
2, film strength height, flatness is good, and antistatic behaviour and convergence are good, can guarantee spinning silk winding, the carrying out smoothly of each operation of drawing-off, full packages rate height, fiber quality is good, can improve the back processing characteristics;
3, the finish washability is splendid, has guaranteed the stable of rate of dyeing, helps the even of back processing dyeing, makes the back processed user relieved;
Polyester conventional spinning oil of the present invention is applicable to polyester conventional spinning production line, be particularly useful for spinning speed and be 750-1200M/min terylene spinning technology and equipment, can spin 50D-300D half delustring, greatly the polyester filament of light and heterotypic fibre all size be arranged, can satisfy the requirement of polyester conventional spinning technique, use through the Duo Jia chemical fibre factory, spinning, the production that stretches run well, and the fiber quality index reaches customer requirements.
Below in conjunction with embodiment the present invention is further described:
By weight percentage, determine the ratio of each component:
Embodiment 1:
Emulsifying agent 19%, wherein castor oil polyoxyethylene ether (EL class) 4%, polyoxyethylene nonylphenol ether (TX class) 5%, aliphatic acid polyethenoxy ether 10%;
Collecting agent 8%, wherein laurate polyoxyethylene ether (LAE-9 class) 2%, octanol high-molecular weight atactic polyethers 6%;
Antistatic additive 5%, wherein hexadecanol phosphate kalium salt (PK class) 2%, amphoteric phosphate ammonium salt 3%;
Smooth agent 64%, wherein end capped polyether 10%, quaternary alcohol ester 40%, mineral oil 14%;
Bleeding agent 2% is carbon eight pure polyoxyethylene ether;
Anticorrosive additive 2%, wherein silicone oil 1%, higher alcohol 1%.
Embodiment 2:
Emulsifying agent 22%, lauryl alcohol polyoxyethylene ether (MOA class) 6% wherein, butanols high-molecular weight atactic polyethers 7%, aliphatic acid polyethenoxy ether (TX class) 9%;
Collecting agent 6%, wherein the polyethylene glycol Glycol Oleic Acid Ester 3%, castor oil polyoxyethylene ether (EL class) 3%;
Antistatic additive 6%, lauryl alcohol phosphate polyoxyethylene ether sylvite (EP class) 2% wherein, lauryl alcohol polyoxyethylene phosphate sylvite (MPK class) 4%;
Smooth agent 61%, wherein triol ester 20%, end capped polyether 20%, mineral oil 21%;
Bleeding agent 3%, carbon eight pure polyoxyethylene ether 2% wherein, carbon ten pure polyoxyethylene ether 1%;
Anticorrosive additive 2%, wherein modified organic silicon 1%, higher acid 1%.
Embodiment 3:
Emulsifying agent 15%, butanols high-molecular weight atactic polyethers 4% wherein, polyoxyethylene nonylphenol ether (TX class) 5%, castor oil polyoxyethylene ether (EL class) 6%;
Collecting agent 6%, polyethylene glycol laurate dibasic acid esters 2% wherein, laurate polyoxyethylene ether (LAE-9 class) 4%;
Antistatic additive 7%, octadecanol phosphate kalium salt (PK class) 4% wherein, lauryl alcohol polyoxyethylene ether phosphate sylvite 3%;
Smooth agent 69%, wherein binary alcohol esters 30%, end capped polyether 15%, quaternary alcohol ester 24%;
Bleeding agent 1% is carbon ten pure polyoxyethylene ether;
Anticorrosive additive 2%, wherein higher alcohol 1%, modified organic silicon 1%.
After the described ratio batching of above-mentioned three embodiment, the manufacture method of its polyester conventional spinning oil is:
With emulsifying agent, collecting agent, antistatic additive suction reactor, open and stir, be warming up to about 50 ℃, stir, again with smooth agent suction reactor, keep about 50 ℃ of temperature, stir 30min, add bleeding agent and anticorrosive additive at last, stir 15min, stir and finish, be cooled to about 40 ℃, blowing, filtration, packing are promptly.
The polyester conventional spinning oil of producing according to proportioning of the present invention and manufacture method can reach following quality index:
1, outward appearance (25 ℃) light yellow transparent liquid
2, pH value (10% aqueous solution, 20 ℃) 6.0-8.0
3, effective component content (%, 〉=) 90.0
4, kinematic viscosity (50 ± 0.1 ℃, m
2/ s) (2.5～3.5) * 10
-6
5, stability of emulsion 10% aqueous solution 48 hours is not stratified
Claims (2)
1, a kind of polyester conventional spinning oil, by smooth agent, emulsifying agent, collecting agent, antistatic additive, bleeding agent, anticorrosive additive is formed, the percentage by weight that it is characterized in that each component is: smooth agent 60～70%, emulsifying agent 14～24%, collecting agent 5～11%, antistatic additive 5～7%, bleeding agent 1～3%, anticorrosive additive 1～2%; Described smooth agent is a mineral oil, double base alcohol ester, triol ester, quaternary alcohol ester, the mixture of more than one in the end capped polyether; Described emulsifying agent is a castor oil polyoxyethylene ether, lauryl alcohol polyoxyethylene ether, polyoxyethylene nonylphenol ether, aliphatic acid polyethenoxy ether, the mixture of more than one in the butanols high-molecular weight atactic polyethers; Described collecting agent is the polyethylene glycol Glycol Oleic Acid Ester, laurate polyoxyethylene ether, polyethylene glycol laurate dibasic acid esters, castor oil polyoxyethylene ether, the mixture of more than one in the octanol high-molecular weight atactic polyethers; Described antistatic additive is a lauryl alcohol phosphate polyoxyethylene ether sylvite, hexadecanol phosphate kalium salt, octadecanol phosphate kalium salt, lauryl alcohol polyoxyethylene ether phosphate sylvite, the mixture of more than one in the amphoteric phosphate ammonium salt; Described bleeding agent is carbon eight pure polyoxyethylene ether or carbon ten pure polyoxyethylene ether; Described anticorrosive additive is a silicone oil, modified organic silicon, higher alcohol, the mixture of more than one in the higher acid.
2, press the manufacture method of the described polyester conventional spinning oil of claim 1, it is characterized in that percentage by weight by each component, elder generation is with emulsifying agent, collecting agent, the antistatic additive suction reactor of accurate measurement, be heated to 40～70 ℃ and stir, again with in the smooth agent suction reactor, behind stirring 30～50min, add bleeding agent and anticorrosive additive, cooling after stirring is filtered, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991242807A CN1138034C (en) | 1999-12-21 | 1999-12-21 | Conventional polyester spinning oil and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991242807A CN1138034C (en) | 1999-12-21 | 1999-12-21 | Conventional polyester spinning oil and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1272568A CN1272568A (en) | 2000-11-08 |
| CN1138034C true CN1138034C (en) | 2004-02-11 |
Family
ID=5283364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991242807A Expired - Fee Related CN1138034C (en) | 1999-12-21 | 1999-12-21 | Conventional polyester spinning oil and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1138034C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100378267C (en) * | 2006-07-14 | 2008-04-02 | 中国石油化工集团公司 | Oil agent used for polyester industrial filament |
| CN100385061C (en) * | 2005-01-26 | 2008-04-30 | 上海巨人高科技新型材料有限公司 | Nanometer polyester fiber FDY spinning oil prepn and its prepn process |
| BE1023475B1 (en) * | 2016-06-09 | 2017-04-03 | Vertexco Nv | METHOD FOR MANUFACTURING A SPIN OIL |
| CN106939514A (en) * | 2017-04-25 | 2017-07-11 | 上海新浦特种助剂有限公司 | A kind of terylene FDY spinning oil |
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| CN101307564B (en) * | 2008-04-09 | 2011-04-20 | 张金惠 | Polyester staple fiber double-component assembled oil solution and preparation method |
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| CN111607968A (en) * | 2020-05-29 | 2020-09-01 | 江苏万邦特种纺织发展有限公司 | Manufacturing process of anti-wicking polyester filament |
| CN116556056B (en) * | 2023-01-18 | 2024-04-26 | 浙江恒翔新材料有限公司 | Polyester POY (polyester pre-oriented yarn) oiling agent and preparation method thereof |
-
1999
- 1999-12-21 CN CNB991242807A patent/CN1138034C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385061C (en) * | 2005-01-26 | 2008-04-30 | 上海巨人高科技新型材料有限公司 | Nanometer polyester fiber FDY spinning oil prepn and its prepn process |
| CN100378267C (en) * | 2006-07-14 | 2008-04-02 | 中国石油化工集团公司 | Oil agent used for polyester industrial filament |
| BE1023475B1 (en) * | 2016-06-09 | 2017-04-03 | Vertexco Nv | METHOD FOR MANUFACTURING A SPIN OIL |
| CN106939514A (en) * | 2017-04-25 | 2017-07-11 | 上海新浦特种助剂有限公司 | A kind of terylene FDY spinning oil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1272568A (en) | 2000-11-08 |
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