CN1323365A - Spinning oil for producing combed sliver - Google Patents
Spinning oil for producing combed sliver Download PDFInfo
- Publication number
- CN1323365A CN1323365A CN99812115A CN99812115A CN1323365A CN 1323365 A CN1323365 A CN 1323365A CN 99812115 A CN99812115 A CN 99812115A CN 99812115 A CN99812115 A CN 99812115A CN 1323365 A CN1323365 A CN 1323365A
- Authority
- CN
- China
- Prior art keywords
- fatty acid
- agent
- weight
- oil
- methyl ester
- 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.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
- D06M13/2246—Esters of unsaturated carboxylic acids
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
- D06M2101/12—Keratin fibres or silk
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions
Abstract
The invention relates to the use of C6-22 fatty acid methyl esters comprised of vegetable raw materials, preferably based on coconut fatty acids, palm kernel fatty acids, palm oil fatty acids or mixtures thereof as a glidant in spinning oils for the combed silver production of wool. According to the invention, it is possible to increase the yield of combed silver by using said fatty acid methyl esters.
Description
The present invention relates in the spinning oil of combing wool tops production usefulness, play the finish (Schmalze) of purposes, combed top production usefulness of the plant source fatty acid methyl ester of smooth agent effect and the preparation method of the finish when the combing wool tops is produced, used.
In wool spinning combing spinning process, high-quality yarn is produced with staple fibre.At first, with PES, PAN or other synthetic fiber spinning wool and wool compound.With yarn sub-thread ground or be processed into spinning plane configuration articles with twisting thread.The wool that is processed into combed yarn must carry out strong washing process before carrying out original spinning technique, remove inorganic and organic impurities, to guarantee that processing is out of question in spinning process.Wool after the washing will carry out drying.Owing to removed fiber impurity, especially lanocerin and fat, changed the static state and the dynamic friction ratio of wool greatly, when making further the processing wool, particularly the wool that strong friction occurs at fibre/fibre and fiber/intermetallic has become extremely scabrous problem.
Oil by wool and obviously to have improved the frictional behavior that changes during the wool grease scouring drying.So,, that is to say that wool is by pretreated staple fibre further processing and producd fibers bond by combing.Mainly be that wool fiber material has very strong stress by fiber/metal friction when the process segment.This stress causes the average fiber length (bold and unconstrained special type wool length) of wool to shorten.Shorten for fear of this fiber, before the combing wool, provide suitable finish.By wool spinning combing spinning process, with exist with the card sliver form after the combing or combing after the wool that exists with the combed top form carry out repetition and close, stretch and follow and become uniform spun yarn with combed wool yarn method ring spinning.
Oiling is the center processing step during combed top is produced, and this is because as increase the content of staple fibre without sufficient oiling meeting, reduce the productive rate of combed top, can produce adverse influence to the intensity of for example combed yarn simultaneously.This loss has increased production cost greatly.For example for the factory of typical large-scale combed top, it is about 0.3% to improve productive rate, just is equivalent to additionally increase when producing 60000 tons of combed tops per year 180 tons of commercial goods.According to the selling price of reality, the profit of factory will be above 100 ten thousand DM.The whole world annual production of combed top is approximately 1.5 hundred ten thousand tons.Therefore, people will constantly seek the improvement finish of combed top production usefulness.
In the production of combed top, generally adopt the aqueous emulsion of smooth agent or net product as the textile oil agent.Except mineral oil, particularly fatty acid polyethylene glycol ester and pure fat acid esters are that known smooth agent is (referring to " textile auxiliary handbook, A.Chwala, V.Anger, Weinheim 1997,314-320 page or leaf and " importance of finish and oiling treatment when combed top is produced " (Die Bedeutung derSchmaelze und der Avivage bei Kammgarnherstellung) W.Becker, in " international weaving is put into practice " (textil praxis international), October nineteen ninety).Normally smooth agent is processed into the textile oil agent with emulsifying agent, preferably before combing, this finish is coated on the wool fibre.
Known among the EP587601B1 by the applicant: fatty acid methyl ester is suitable for as the finish in the woolen yarn production.The document discloses the ester based on the animal tallow acid blend, the particularly tallow fatty acids exemplary use as smooth agent in the agent of woolen yarn spinning process textile oil.Now, in the woolen yarn spinning process, according to the further process different, to different with during combed top is produced of the requirement of smooth agent to fiber.But in two kinds of methods, no matter wool is to shut down the workshop when first processing step (back in washing, dyeing etc.) carded, and still on the production purpose, the wool top production technology of woolen yarn spinning process has tangible difference.Combed yarn passes through two stage wool top spun yarn with fine wool.In contrast, woolen yarn is the rove spun yarn of usefulness woolen yarn combing preparation immediately after combing.Difference to two kinds of products in the table below contrasts.
Smooth coarse, the coat that is mossy application purpose exquisiteness of combed yarn woolen yarn surface texture is with coarse, the durable coat yarn of yarn, and carpet usefulness yarn yam count Nm20-100 (spun yarn) Nm0.5-20 (rove) yarn evenness height is lower
Use the exemplarily disclosed production of also failing to improve combed top based on the methyl esters of animal-tallow fatty acids of EP587601B1.But, be surprisingly found out that: the content of staple fibre when using the fatty acid methyl ester be selected from fatty acid mixt to reduce the combing wool fibre significantly during as smooth agent.
In first embodiment, use the C of plant source
6-22The smooth agent of textile oil agent during fatty acid methyl ester is produced as combed top.
The fatty acid methyl ester that the present invention uses is the commercially available prod, and their great majority are by the esterification of known free fatty own or by obtaining with methyl alcohol resterification fatty acid triglycercide in the presence of acidic catalyst.In the present invention, only used fatty acid methyl ester, they are that natural glycerin three esters by the resterification plant source obtain, for example cocounut oil, soya-bean oil, rapeseed oil, palm oil or palm-kernel oil.Zhi Bei methyl ester need not further processing like this, only can use after distillation processing or hydrogenation unsaturation component.Preferably use such fatty acid methyl ester especially, promptly based on fatty acid distribution of coconut oil, palm kernel fatty acid, palm oil fatty acid, especially the mixture based on them prepares.
Except the smooth agent of plant source, ideally, also can use emulsifying agent and other conventional additive.
Fatty acid distribution of coconut oil mainly contains the mixture of laurate and myristic acid.In typical case, contain 0.2-1% (weight) caproic acid in the fatty acid distribution of coconut oil, 5.4-8.0% (weight) is sad, 6.5-8.5% (weight) capric acid, 45.0-51.0% (weight) laurate, 16.5-18.5% (weight) myristic acid, the acid of 9.0-10.0% (weight) cetyl, 2.0-2.3% (weight) stearic acid, 0.2-0.4% (weight) behenic acid and 8.0-10.0% (weight) oleic acid and 0.7-1.0% (weight) linoleic acid.
Typical palm kernel fatty acid contains following component: 9% (weight) caproic acid, sad, capric acid, 50% (weight) laurate, 15% (weight) myristic acid, the acid of 7% (weight) cetyl, 2% (weight) stearic acid, 15% (weight) oleic acid, 1% (weight) linoleic acid.Typical PALM FATTY ACID contains following component: 2% (weight) myristic acid, the acid of 42% (weight) cetyl, 5% (weight) stearic acid, 41% (weight) oleic acid and 10% (weight) linoleic acid.
According to the present invention, use the smooth agent of methyl ester mixture as the textile oil agent, wherein said textile oil agent contains the above-mentioned fatty acid methyl ester of 50-95% (weight), especially 60-80% (weight) at the most.
Another theme of the application is the textile oil agent of using in the combed top production, contains
A) C of 60-80% (weight) plant source
6-22Fatty acid methyl ester is made smooth agent
B) 5-30% (weight) emulsifying agent
C) 0-10% (weight) additive.
Textile oil agent of the present invention preferably contains fatty acid distribution of coconut oil, palm kernel fatty acid or palm oil fatty acid as smooth agent and the fatty acid methyl ester of their mixture-bases.Preferably such finish promptly only contains the methyl ester of fatty acid distribution of coconut oil or palm kernel fatty acid base.But the mixture of the methyl ester of fatty acid distribution of coconut oil, palm kernel fatty acid or palm oil fatty acid base also is preferred, and wherein the weight ratio of three kinds of different methyl ester is that 1: 1: 1 mixture is particularly preferred.
Additive in the textile oil agent of the present invention can comprise preservative agent, antistatic additive, tackifier, bactericide, antioxidant, pH value conditioning agent and viscosity improver.
The emulsifying agent that is suitable for is nonionic, anion and cationic emulsifier, the partial ester of two glycerine and/or triglycerin for example, for example the triglycerin monooleate is oxyalkylated, preferred ethoxylation and/or propenoxylated fat, oil, C
8-22Aliphatic acid, C
8-22Fatty alcohol and/or C
8-22Aliphatic acid monoethanolamine and/or C
8-22Fatty acid diethanolamine, for example the oleic acid monoethanolamine of ethoxylation in case of necessity or oleic acid diethanol amine, oxyalkylated, the preferably C of ethoxylation
8-22(its OH group is by C for aliphatic acid
1-4Alkoxyl replaces), C
8-22The alkali metal salt of alkyl sulfonic acid and/or ammonium salt, C
8-22The alkali metal salt of salts of alkyl sulfosuccinates and/or ammonium salt, for example dioctyl sodium sulfo-succinate and/or amino oxide, for example dimethyl dodecyl amino oxide.
In principle, for example the rapeseed oil of high viscosity or polymer compound promptly improve the viscosity of textile oil agent as tackifier can to use triglycerides.Known by German patent specification DE3936975 is a kind of rapeseed oil, and it contains the promising rapeseed oil that prevents and sprays and the poly alkyl alcohol methacrylate of adding.By the known a kind of additive of Deutsche Bundespatent prospectus DE3924160, contain the acrylic acid that has or not carboxyl and/or the homopolymers and/or the mixed polymer of methacrylate, the limiting viscosity of measuring in oxolane under 20 ℃ [η] is at least 300, preferred 800ml/g.Described limiting viscosity [η] is a technical term, and for example at " macromolecular chemistry outline " (Grundriss der Makromolekularen Chemie) of Vollmert, III rolls up, the 55-61 page or leaf, E, Vollmert publishing house is described among the Karlsruhe 1982.Described additive has reeling off raw silk from cocoons property and/or the adherence that high limiting viscosity can improve oil and/or fat because of it.
Textile oil agent of the present invention can be by known method preparation itself, wherein the component of appointment is carried out to each other mixing by arbitrary order by the amount of appointment under 18-25 ℃ temperature.
The textile oil agent can be pure form use or use with the form of aqueous emulsion ideally.Another theme of the present invention relates to the preparation method of the finish that wool is used in combed top production, wherein before combing, handle wool, according to above-described with aqueous emulsion, the active material that described aqueous emulsion contains is counted the textile oil agent of 0.25-0.6% by wool weight.Textile fabric exists with the form of bulk fibre.
Embodiment
Two kinds of combing finishes that the present invention contained the fatty acid methyl ester of plant source are tested.By the agent of simple stirring feedstock production textile oil.Half wool of washing in advance that will test is carried out oiling with the used tallow fatty acids carbomethoxy textile auxiliary of standard.Diffusing wool with product soft treatment surplus of the present invention.Each with modifying by the product of wool weight 0.5% (weight).
Then combing wool, after-drawing, combing and carry out final drying, and will compare by the combed top productive rate of the product (B) of oiling of the present invention combed top productive rate with the combed top (A) for preparing by standard method.A that lists below and the value of B show the weight difference between cotton-shaped gross weight amount of the washing that is calculated as follows and the final combed top weight:
Productive rate (%)=combed top weight [Kg] * 100/ washing improved result of cotton-shaped gross weight amount [Kg] (in %) has represented the raising (A, B difference) of combed top productive rate, and described combed top is with the production of the present invention's preparation.Should see: textile oil agent of the present invention makes the productive rate height of the productivity ratio of final products with the final products of known animal fatty acid ester base product acquisition.
Table 1: the composition of finish of the present invention:
| Embodiment | Amount [% meter by weight] | Composition |
| 1 | 58.00 | Cocounut oil-/palm kernel-/the palm oil fatty acid methyl esters |
| 12.00 | The fatty acid distribution of coconut oil diglycollic amide | |
| 10.00 | Fatty acid distribution of coconut oil-macrogol ester | |
| 5.00 | The EO/PO-polyethylene glycol, molecular weight: 2500 | |
| 5.00 | Mersolates | |
| 10.00 | Water | |
| 2 | ?80.00 | Cocounut oil-/palm kernel-/the palm oil fatty acid methyl esters |
| 10.00 | Coconut oil fat alcohol+5EO | |
| 5.00 | Mersolates | |
| 5.00 | Diethanol amine | |
Table 2: the result of performance test
| Output is by the % that uses raw material | ||||
| Use amount % | Test 1 | Test 2 | Test 3 | |
| Wool quality (length m m/ diameter μ) | ?64/21 | ???68/21.6 | ????72.2/21.8 | |
| A | 0.5 | ?88.68 | ????90.16 | ?????88.70 |
| B | 0.5 | ?90.64 | ????90.70 | ?????89.70 |
| Improved result is by % | ?1.96 | ????0.54 | ?????1.00 | |
Claims (10)
1. plant source C
6-22In the textile oil agent of fatty acid methyl ester when the combed top of wool is produced as the purposes of smooth agent.
2. according to the purposes of claim 1, it is characterized in that: use fatty acid distribution of coconut oil, palm kernel fatty acid, the fatty acid methyl ester of palm oil fatty acid base or the mixture of these esters.
3. according to the purposes of claim 1 or 2, it is characterized in that: the consumption of fatty acid methyl ester is counted 50-95% (weight) by the textile oil agent, preferred 60-80% (weight).
4. according to the purposes of claim 1-3, it is characterized in that: fatty acid methyl ester and emulsifying agent and additive combination use.
5. the textile oil agent of combed top production usefulness contains
A) C of 60-80% (weight) plant source
6-22Fatty acid methyl ester is made smooth agent
B) 5-30% (weight) emulsifying agent
C) 0-10% (weight) additive.
6. according to the textile oil agent of claim 5, it is characterized in that: the fatty acid methyl ester that only contains the coconut oil fat acidic group is as smooth agent.
7. according to the textile oil agent of claim 5, it is characterized in that: the fatty acid methyl ester that only contains the palm kernel fatty acid base is as smooth agent.
8. according to the textile oil agent of claim 5, it is characterized in that: the mixture of fatty acid methyl ester that contains fatty acid distribution of coconut oil, palm kernel fatty acid and/or palm oil fatty acid base is as smooth agent.
9. textile oil agent according to Claim 8 is characterized in that: the mixture of fatty acid distribution of coconut oil, palm kernel fatty acid and palm oil fatty acid that contains weight ratio and be 1: 1: 1 is as smooth agent.
10. the preparation method of textile oil agent during the combing wool tops is produced, it is characterized in that: before combing, handle wool with aqueous emulsion, the active material that described aqueous emulsion contains is counted the textile oil agent of the claim 5-9 of 0.25-0.60% by wool weight.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19847497A DE19847497A1 (en) | 1998-10-15 | 1998-10-15 | Use of methyl esters of fatty acids from plant raw materials as smoothing agent in softener for producing slubbing by carding wool |
| DE19847497.0 | 1998-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1323365A true CN1323365A (en) | 2001-11-21 |
| CN1170975C CN1170975C (en) | 2004-10-13 |
Family
ID=7884534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998121150A Expired - Lifetime CN1170975C (en) | 1998-10-15 | 1999-10-06 | Spinning oil for producing combed sliver |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1119658B1 (en) |
| CN (1) | CN1170975C (en) |
| AU (1) | AU761676B2 (en) |
| BR (1) | BR9914516A (en) |
| DE (2) | DE19847497A1 (en) |
| ES (1) | ES2235525T3 (en) |
| HK (1) | HK1038598A1 (en) |
| NZ (1) | NZ511210A (en) |
| WO (1) | WO2000022223A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127859A (en) * | 2011-01-18 | 2011-07-20 | 东华大学 | Spinning finish for degradable stent fiber for human bodies |
| CN103388260A (en) * | 2012-05-11 | 2013-11-13 | 天津博克尼科技发展有限公司 | Wool combing oil for wool textile technology |
| CN104120524A (en) * | 2014-06-26 | 2014-10-29 | 浙江新澳纺织股份有限公司 | Cooldry wool spinning method |
| CN108589285A (en) * | 2018-06-19 | 2018-09-28 | 浙江永金生物科技有限公司 | A kind of biology and crude oil and preparation method thereof |
| CN114000229A (en) * | 2021-12-08 | 2022-02-01 | 江苏双江能源科技股份有限公司 | Anti-splashing agent for polyester DTY oil agent and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2764860A1 (en) | 2013-02-06 | 2014-08-13 | Basf Sa | Cupuassu fatty acid amidoamines and their derivatives |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3936975C1 (en) * | 1989-11-07 | 1991-01-24 | Tudapetrol Mineraloelerzeugnisse Nils Hansen Kg, 2000 Hamburg, De | Spooling oil to treat textured fibres or yarns - comprises vegetable oil, ester of vegetable fatty acid, fatty alcohol polyglycol ether, fatty alcohol methacrylate, etc. |
| DE4114240A1 (en) * | 1991-05-02 | 1992-11-05 | Henkel Kgaa | USE OF SPECIAL COMPOUNDS AS A SMOOTHING AGENT IN CHEMOELS |
| DE4201978A1 (en) * | 1991-05-29 | 1992-12-03 | Henkel Kgaa | FATTY ACID METHYL ESTERS IN LUBRICANTS FOR MATING YARN SPINNING |
-
1998
- 1998-10-15 DE DE19847497A patent/DE19847497A1/en not_active Ceased
-
1999
- 1999-10-06 CN CNB998121150A patent/CN1170975C/en not_active Expired - Lifetime
- 1999-10-06 NZ NZ511210A patent/NZ511210A/en unknown
- 1999-10-06 WO PCT/EP1999/007475 patent/WO2000022223A1/en active IP Right Grant
- 1999-10-06 ES ES99950643T patent/ES2235525T3/en not_active Expired - Lifetime
- 1999-10-06 DE DE59911290T patent/DE59911290D1/en not_active Expired - Fee Related
- 1999-10-06 BR BR9914516-2A patent/BR9914516A/en not_active IP Right Cessation
- 1999-10-06 EP EP99950643A patent/EP1119658B1/en not_active Expired - Lifetime
- 1999-10-06 AU AU63348/99A patent/AU761676B2/en not_active Ceased
-
2001
- 2001-12-31 HK HK01109229A patent/HK1038598A1/en not_active IP Right Cessation
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127859A (en) * | 2011-01-18 | 2011-07-20 | 东华大学 | Spinning finish for degradable stent fiber for human bodies |
| CN102127859B (en) * | 2011-01-18 | 2012-05-09 | 东华大学 | Spinning finish for degradable stent fiber for human bodies |
| CN103388260A (en) * | 2012-05-11 | 2013-11-13 | 天津博克尼科技发展有限公司 | Wool combing oil for wool textile technology |
| WO2013166780A1 (en) * | 2012-05-11 | 2013-11-14 | 天津博克尼科技发展有限公司 | Wool lubricant for wool textile process |
| CN104120524A (en) * | 2014-06-26 | 2014-10-29 | 浙江新澳纺织股份有限公司 | Cooldry wool spinning method |
| CN104120524B (en) * | 2014-06-26 | 2017-07-28 | 浙江新澳纺织股份有限公司 | The spinning processing method of wool hydroscopic fast-drying |
| CN108589285A (en) * | 2018-06-19 | 2018-09-28 | 浙江永金生物科技有限公司 | A kind of biology and crude oil and preparation method thereof |
| CN114000229A (en) * | 2021-12-08 | 2022-02-01 | 江苏双江能源科技股份有限公司 | Anti-splashing agent for polyester DTY oil agent and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2235525T3 (en) | 2005-07-01 |
| CN1170975C (en) | 2004-10-13 |
| NZ511210A (en) | 2003-09-26 |
| EP1119658A1 (en) | 2001-08-01 |
| AU6334899A (en) | 2000-05-01 |
| DE19847497A1 (en) | 2000-04-20 |
| WO2000022223A1 (en) | 2000-04-20 |
| DE59911290D1 (en) | 2005-01-20 |
| AU761676B2 (en) | 2003-06-05 |
| HK1038598A1 (en) | 2002-03-22 |
| EP1119658B1 (en) | 2004-12-15 |
| BR9914516A (en) | 2001-06-26 |
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Effective date of registration: 20120326 Address after: 200062, 36 floor, No. 28, Danba Road, Century Square, Shanghai, Xuhui District, 6 floor, 16 floor Patentee after: PULCRA SPECIALTY CHEMICALS SHANGHAI Co.,Ltd. Address before: Germany Rhine Patentee before: Fashion chemical GmbH |
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| CX01 | Expiry of patent term |
Granted publication date: 20041013 |
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| CX01 | Expiry of patent term |