CN108330682A - One kind is without environmentally friendly polyester staple fiber inorganic agents of APEO and preparation method thereof - Google Patents
One kind is without environmentally friendly polyester staple fiber inorganic agents of APEO and preparation method thereof Download PDFInfo
- Publication number
- CN108330682A CN108330682A CN201810207193.6A CN201810207193A CN108330682A CN 108330682 A CN108330682 A CN 108330682A CN 201810207193 A CN201810207193 A CN 201810207193A CN 108330682 A CN108330682 A CN 108330682A
- Authority
- CN
- China
- Prior art keywords
- agent
- inorganic
- staple fiber
- polyester staple
- inorganic agent
- 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.)
- Pending
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
- D06M13/244—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 sulfur or phosphorus
- D06M13/282—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 sulfur or phosphorus with compounds containing phosphorus
- D06M13/292—Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
-
- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
-
- 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
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Disclosed by the invention a kind of without environmentally friendly polyester staple fiber inorganic agents of APEO and preparation method thereof, inorganic agent includes inorganic agent A and inorganic agent B, and the inorganic agent A is grouped as by the group of following weight percent：Antistatic agent 65 ~ 85%, emulsifier 5 ~ 15%, collecting agent 10 ~ 20%；The inorganic agent B is grouped as by the group of following weight percent：Smooth agent 50 ~ 75%, collecting agent 25 ~ 50%；The inorganic agent A and inorganic agent B presses 23:78 or 78：23 ratios are used in mixed way.Realize comprehensive replacement of alkylphenol compounds in polyester staple fiber inorganic agent, the requirement of polyester staple fiber spinning and post-processing production process to performances such as inorganic agent antistatic property, flatness, convergences is met, the clean manufacturing of polyester staple fiber and its subsequent product and environmentally protective is realized.
Description
Technical field
It is specifically a kind of without at the environmentally friendly polyester staple fibers of APEO the invention belongs to fibre finish technical field
Manage agent and preparation method thereof.
Background technology
Polyester（PET）Fiber is just concerned by people, by the hair of many decades because of its excellent performance at the beginning of coming out certainly
Exhibition has become the first synthetic fibers kind in the world, is widely used in the fields such as clothes, dress ornament, home textile, decoration, papermaking, engineering.
It is higher and higher with the increasingly raising of people's living standard, and to the attention degree of health and environmental protection, to the poison of polyester fiber
The requirement of property and environmental-protecting performance is also higher and higher.Polyester fiber itself does not have toxicity, harmless, but since polyester exists
Polycondensation process introduces the catalyst containing heavy metal and polyester fiber and is introduced in spinning process containing alkyl phenol polyoxy
Vinethene（APEO）Chemical fibre inorganic agent so that polyester fiber is provided with toxicity, and produces detrimental effect to environmental protection.
Currently, the textile and clothing value that China is exported to Europe every year is up to 10,000,000,000 dollars, European Union 2003/53/EC
Number instruction requires to generate significant impact to the outlet of China's polyester staple fiber garment material to the green of textile, seriously limits
Polyester staple fiber industrial expansion causes enormous impact to China's polyester staple fiber industry, and newly developed polyester both at home and abroad
Staple fiber treatment agent formula cannot still fully meet the demand of polyester fiber production and environmental protection, it is necessary to take seriously APEO and weave
The research work for substituting APEO chemicals is carried out in use in product in advance, ensures the smooth outlet of China's textile.Therefore it develops
Novel environment-friendly type textile auxiliary and chemical fibre inorganic agent without APEO function admirables become scientific worker must face it is new
Project.
Invention content
Thus the purpose of the present invention generates, propose a kind of without the environmentally friendly polyester staple fiber inorganic agents of APEO and its system
Preparation Method realizes comprehensive replacement of alkylphenol compounds in polyester staple fiber inorganic agent.Meet polyester staple fiber spinning and after
Polyester staple fiber and its follow-up is realized in requirement of the processing process to performances such as inorganic agent antistatic property, flatness, convergences
The clean manufacturing of product and environmentally protective.
The present invention realizes that above-mentioned purpose adopts the technical scheme that：It is a kind of novel without the environmentally friendly polyester staple fibers of APEO
Dimension inorganic agent includes inorganic agent A and inorganic agent B, and the inorganic agent A is grouped as by the group of following weight percent：Antistatic agent 65 ~
85%, emulsifier 5 ~ 15%, collecting agent 10 ~ 20%；The inorganic agent B is grouped as by the group of following weight percent：Smooth agent 50 ~
75%, collecting agent 25 ~ 50%；The inorganic agent A and inorganic agent B presses 2-3:7-8 or 7-8：2-3 ratios are used in mixed way.
Antistatic agent in the inorganic agent A is C12-18Potassium alkyl phosphate；Emulsifier is that EO/PO ratios are 40/60
C10-16Fatty alcohol polyoxyethylene ether；Collecting agent is the C that EO/PO ratios are 50/504-12Aliphatic acid polyethenoxy ether.
The smooth agent of the inorganic agent B is C4-12Fatty alcohol polyoxyethylene ether；Collecting agent is that EO/PO ratios are 50/50
C4-12Aliphatic acid polyethenoxy ether.
The preparation method of the inorganic agent A is：First the antistatic agent of accurate measurement is prepared in reaction kettle, reaction temperature
It is 30-70 DEG C, after stirring 3h-8h, then emulsifier, collecting agent is pumped into reaction kettle again, reaction temperature is 30-70 DEG C, is stirred
It is cooling after mixing 1h-3h, it filters, discharging is packed to obtain the final product.
The preparation method of the inorganic agent B is：The smooth agent of accurate measurement and collecting agent are added in reaction kettle, reaction temperature
Degree is 30-50 DEG C, cooling after reacting 3h-6h, is filtered, and discharging is packed to obtain the final product.
In instant component, inorganic agent A is for the purpose of improving antistatic property, and composition is with C12-20Alkyl phosphate potassium
Salt is main antistatic agent, for the purpose of adjusting the frictional behavior between fiber and fiber, fiber and metal, with amophoteric surface active
Agent is auxiliary, is prepared with alcohol ether, ester ether；Inorganic agent B is fast to soak, and for the purpose of flatness is good, composition is with alcohol ether
It is prepared with random ester ether.
The determination of the antistatic agent：In anionic surfactant, phosphate, potassium alkyl phosphate and alkyl
The antistatic effect of ether sulfuric ester sylvite is preferable, if being free of ethylene oxide group, this surface-active in sulfuric ester alkyl chain
The antistatic property of agent is poor；When containing ethylene oxide group, then shows good antistatic property.Although alkyl ether sulphate sylvite
Antistatic property is good, but its thermal stability is poor, is not easy to use.C12-18Potassium alkyl phosphate is overlying on fiber surface and can be formed when applying
Solid lubricant film can assign fiber good flatness, preferable heat resistance, higher film strength, as inorganic agent component
The cotton carding state of fiber can be effectively improved when use, reduce to glue twining phenomenon.To take into account the requirement of antistatic property and use environment,
Antistatic agent is with C in this project environment-friendly type polyester staple fiber inorganic agent12-18Based on potassium alkyl phosphate, and with it is a small amount of
Amphoteric surfactant is combined into composite antistatic agent.
The selection of the smooth agent：When selecting smooth agent, it is desirable that the friction between fiber and metal will be as possible is small,
Be exactly the coefficient of kinetic friction between smooth agent and metal will be as possible it is small.For the polyethers PVvalue testing result of different structure
It is shown in Table 3.From data in table as it can be seen that this five kinds of surfactants as smooth agent in use, can effectively reduce in spinning process
Fiber is damaged through the suffered rubbing action of metal deflector roll and draw roll and when crimping machine to reduce fiber.
Influence of 3 smooth agent of table to polyester staple fiber friction coefficient
Note：Oil applying rate of fiber 0.10,25 DEG C of temperature, humidity 60%.
Therefore we select the fatty alcohol polyoxyethylene ether of synthesis special construction as smooth agent.
The selection of the collecting agent：When selecting collecting agent, quiet, the coefficient of kinetic friction the ratio between fiber and fiber is used
Value characterizes convergence, and ratio is bigger, convergence is better.Higher convergence can make tow regular, be conducive to the works such as drafting
The processing of sequence, but be not that the higher the better for convergence, because of the convergence of fiber for the other process of polyester staple fiber
It is too strong, fiber can be made to be not easy shredding, fiber separation is deteriorated, and " clouding " easily occurs in cotton net when cotton carding；And if convergence is too poor, and hold
Easily make adhesion between cotton roll, cotton net has net or phenomenon of scoring a goal when cotton carding, and yarn qualities is caused to decline.Therefore, the boundling of fiber
Property will control in a suitable range.Therefore the C4-12 aliphatic acid polyethenoxy ethers that EO/PO ratios are 50/50 are selected most
For suitable collecting agent.
The determination of the emulsifier：During polyester staple fiber inorganic agent use, crude oil and lotion must keep stable,
Phenomena such as floating oil, layering, flocculation, precipitation, demulsification cannot occur, otherwise can influence the performance of inorganic agent, therefore just necessary
Excellent emulsifier is selected to make system that there is suitable HLB value（Hydrophilic lipophilic balance）.It is handled according to polyester staple fiber spinning
Agent spinning and post-processing requirement, are added the surfactant of amphiphilic, increase the dispersion of distribution of dispersed phase droplet particle size, make
Smaller droplet particles are filled into larger particle space, are reduced the collision probability between particle in lotion, are reduced dispersion
Mutually with the density contrast of continuous phase, emulsion intercalation method is improved.Therefore the C10-16 fatty alcohol polyoxyethylene ether of specific EO/PO ratios
As first choice.
The present invention in use, makes according to requiring to be mixed in a certain ratio cell processing agent A with inorganic agent B
With.For example, for preceding spinning inorganic agent, that is, spinning inorganic agent, its purpose is to improve the spinning spinnability of polyester staple fiber.It is right
Inorganic agent performance it is main requirement be：The wetting rate for handling agent emulsion is fast, flatness, coherent and heat-resist, therefore can
By cell processing agent in A/B=3/7 or 2/8 ratio hybrid modulation.For rear spinning inorganic agent i.e. spin inorganic agent, the purpose is to for
Improve the spinning spinnability of fiber, main to inorganic agent performance requirement is：Heat-resist, fiber and fiber is quiet, dynamic friction
Coefficient ratio is advisable when being 1.5, and the antistatic property of inorganic agent is preferably and smaller to environment epidemic disaster sensibility at this time, so can
By cell processing agent in A/B=7/3 or 8/2 ratio hybrid modulation.
Fiber APEO content balances of the present invention
It takes this polyester staple fiber tested and front and back spinning that the staple fiber of common process agent is all used to carry out APEO test comparisons, examines
It is spun after core after using environment-friendly type B inorganic agents, the decline degree of the APEO contents in fiber.SGS Tong Biao companies of Switzerland are to fiber
Test result see the table below.
APEO content balances
As can be seen from the table, it is 140 that front and back spinning, which all uses the content of APEO in the fiber that non-environmental protection inorganic agent produces,
Mg/kg, although and this experiment has only used environment-friendly type inorganic agent in rear spinning, the content of APEO is significantly in fiber
55 mg/kg are had decreased to, effect is apparent.
Fiber index of the present invention
The quality testing index of test thread see the table below.
It can be seen from the above, novel environmental close friend's polyester staple fiber inorganic agent that the present invention develops, it is entirely capable of meeting polyester short
Fiber produces and textile process requirement, and the comprehensive performance of inorganic agent has reached or part has been more than the water of same kind of products at abroad
It is flat；The use of the polyester staple fiber APEO contents that novel environmental close friend's polyester staple fiber inorganic agent produces is 0, disclosure satisfy that European Union the
No. 2003/53/EC instruction requires the green of textile.
Specific implementation mode
Specific embodiments of the present invention are given below.Specific embodiment is only used for that present invention be described in more detail, unlimited
The application scope of the claims processed.
Embodiment 1
By the antistatic agent of 85% weight ratio（C12 potassium alkyl phosphates）Raw material is added in reaction kettle, and reaction temperature is 70 DEG C,
The collecting agent of 10% weight ratio is added in reaction after 6 hours（C6 aliphatic acid polyethenoxy ethers）It is pumped into reaction kettle, is then added
The emulsifier of 5% weight ratio（C10 fatty alcohol polyoxyethylene ether）, controlling reaction temperature is at 60 DEG C, cooling after stirring 2h, discharging,
It packs up to inorganic agent A.
Embodiment 2
By the antistatic agent of 80% weight ratio（C12 potassium alkyl phosphates）Raw material is added in reaction kettle, and reaction temperature is 60 DEG C,
The collecting agent of 15% weight ratio is added in reaction after 5 hours（C6 aliphatic acid polyethenoxy ethers）It is pumped into reaction kettle, is then added
The emulsifier of 5% weight ratio（C10 fatty alcohol polyoxyethylene ether）, controlling reaction temperature is at 50 DEG C, cooling after stirring 2h, discharging,
It packs up to inorganic agent A.
Embodiment 3
By the smooth agent of 80% weight ratio（C12 fatty alcohol polyoxyethylene ether）Raw material is added in reaction kettle, rear that 20% weight ratio is added
Collecting agent（C8 aliphatic acid polyethenoxy ethers）Reaction temperature is 50 DEG C, cooling after reacting 5 hours, and discharging is packed up to locating
Manage agent B.
Embodiment 4
By the smooth agent of 75% weight ratio（C110 fatty alcohol polyoxyethylene ether）Raw material is added in reaction kettle, rear that 25% weight ratio is added
Collecting agent（C10 aliphatic acid polyethenoxy ethers）Reaction temperature is 40 DEG C, cooling after reacting 4 hours, and discharging is packed up to locating
Manage agent B.
In above-described embodiment 1-4, cell processing agent A and B needs to be mixed in a certain ratio use in use.For example,
For preceding spinning inorganic agent, that is, spinning inorganic agent, its purpose is to improve the spinning spinnability of polyester staple fiber.To inorganic agent
Can it is main requirement be：The wetting rate for handling agent emulsion is fast, flatness, coherent and heat-resist, therefore can will be at unit
Agent is managed in A/B=3/7 or 2/8 ratio hybrid modulation.For rear spinning inorganic agent i.e. spinning inorganic agent, its purpose is to improve fibre
The spinning spinnability of dimension, requirement main to inorganic agent performance are：Heat-resist, fiber and fiber is quiet, coefficient of kinetic friction ratio
It is advisable when being 1.5, the antistatic property of inorganic agent is preferably and smaller to environment epidemic disaster sensibility at this time, so can will be at unit
Agent is managed in A/B=7/3 or 8/2 ratio hybrid modulation.
Claims (4)
1. one kind being free of the environmentally friendly polyester staple fiber inorganic agents of APEO, it is characterised in that：Including inorganic agent A and inorganic agent B,
The inorganic agent A is grouped as by the group of following weight percent：Antistatic agent 65 ~ 85%, emulsifier 5 ~ 15%, collecting agent 10 ~ 20%；
The inorganic agent B is grouped as by the group of following weight percent：Smooth agent 50 ~ 75%, collecting agent 25 ~ 50%；The inorganic agent A and place
It manages agent B and presses 2-3:7-8 or 7-8：2-3 ratios are used in mixed way.
2. according to claim 1 be free of the environmentally friendly polyester staple fiber inorganic agents of APEO, it is characterised in that：The place
It is C to manage the antistatic agent in agent A12-18Potassium alkyl phosphate；Emulsifier is the C that EO/PO ratios are 40/6010-16Poly alkyl alcohol
Ethylene oxide ether；Collecting agent is the C that EO/PO ratios are 50/504-12Aliphatic acid polyethenoxy ether.
3. according to claim 1 be free of the environmentally friendly polyester staple fiber inorganic agents of APEO, it is characterised in that：The place
The smooth agent for managing agent B is C4-12Fatty alcohol polyoxyethylene ether；Collecting agent is the C that EO/PO ratios are 50/504-12Aliphatic acid polyoxy second
Alkene ether.
4. a kind of realizing the preparation method described in claim 1 without the environmentally friendly polyester staple fiber inorganic agents of APEO,
It is characterized in that：The preparation method of the inorganic agent A is first to prepare the antistatic agent of accurate measurement in reaction kettle, reaction temperature
Degree is 30-70 DEG C, and after stirring 3h-8h, then emulsifier, collecting agent are pumped into reaction kettle again, and reaction temperature is 30-70 DEG C,
It is cooling after stirring 1h-3h, it filters, discharging is packed to obtain the final product；The preparation method of the inorganic agent B is, by the smooth of accurate measurement
Agent and collecting agent are added in reaction kettle, and reaction temperature is 30-50 DEG C, cooling after reacting 3h-6h, are filtered, and discharging is packed to obtain the final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810207193.6A CN108330682A (en) | 2018-03-14 | 2018-03-14 | One kind is without environmentally friendly polyester staple fiber inorganic agents of APEO and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810207193.6A CN108330682A (en) | 2018-03-14 | 2018-03-14 | One kind is without environmentally friendly polyester staple fiber inorganic agents of APEO and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108330682A true CN108330682A (en) | 2018-07-27 |
Family
ID=62930846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810207193.6A Pending CN108330682A (en) | 2018-03-14 | 2018-03-14 | One kind is without environmentally friendly polyester staple fiber inorganic agents of APEO and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108330682A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307564A (en) * | 2008-04-09 | 2008-11-19 | 张金惠 | Polyester staple fiber double-component assembled oil solution and preparation method |
| CN101392458A (en) * | 2008-01-30 | 2009-03-25 | 浙江传化股份有限公司 | Terylene FDY oil and preparation method thereof |
| JP2011202301A (en) * | 2010-03-25 | 2011-10-13 | Toray Ind Inc | Polyester fiber for spunlace nonwoven fabric |
| CN103603203A (en) * | 2013-12-02 | 2014-02-26 | 天津工业大学 | Terylene POY oiling agent and preparation method thereof |
-
2018
- 2018-03-14 CN CN201810207193.6A patent/CN108330682A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392458A (en) * | 2008-01-30 | 2009-03-25 | 浙江传化股份有限公司 | Terylene FDY oil and preparation method thereof |
| CN101307564A (en) * | 2008-04-09 | 2008-11-19 | 张金惠 | Polyester staple fiber double-component assembled oil solution and preparation method |
| JP2011202301A (en) * | 2010-03-25 | 2011-10-13 | Toray Ind Inc | Polyester fiber for spunlace nonwoven fabric |
| CN103603203A (en) * | 2013-12-02 | 2014-02-26 | 天津工业大学 | Terylene POY oiling agent and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105780467B (en) | A kind of short-staple Dacron oil solution | |
| CN101906714B (en) | Environment-friendly polypropylene filament yarn oil agent and production method thereof | |
| CN101235592A (en) | Terylene FDY nano spinning oil and preparation method thereof | |
| CN109487560B (en) | Composite wax microemulsion composition and preparation method and application thereof | |
| CN101307564B (en) | Polyester staple fiber double-component assembled oil solution and preparation method | |
| CN100378267C (en) | Oil agent used for polyester industrial filament | |
| CN108624995A (en) | A kind of preparation method of polyamide spinning finisher | |
| CN106498741B (en) | A kind of environment-friendly type finish and preparation method thereof for continuously spinning viscose filament yarn | |
| CN105803766B (en) | A kind of ultra-fine yarn spinning oil agent and preparation method | |
| CN102321975A (en) | Oil agent for chopped polyester fiber | |
| CN103409994A (en) | Dry method polyacrylonitrile fiber oil and manufacture method thereof | |
| CN103409855A (en) | Polyphenylene sulfide short fiber spinning oil and preparation method thereof | |
| CN105019233A (en) | Treating agent and treating method for spinning viscose rayon | |
| CN112746353B (en) | Chemical fiber oiling agent for high-speed spinning and preparation method thereof | |
| CN102732984A (en) | Preparation method of permanent antistatic flame retardation multicolor polypropylene bulked filament | |
| CN102691213B (en) | Modified flame-retardant oil agent for fiber field and preparation method of modified flame-retardant oil agent | |
| CN111501338B (en) | Efficient preparation process of DTY elasticizing auxiliary agent composite material | |
| CN102071571A (en) | Wool lubricant | |
| CN103865186A (en) | Oxidized polyethylene wax micro-emulsion composition and preparation method thereof | |
| CN106367830A (en) | Preparation method of flame-retardant regenerated cellulose fibers | |
| CN101858036A (en) | Solvent method fiber treatment oil solution | |
| CN108330682A (en) | One kind is without environmentally friendly polyester staple fiber inorganic agents of APEO and preparation method thereof | |
| CN103437185B (en) | A kind of for polyester POY high-speed spin finishes | |
| CN104562664A (en) | Environment-friendly acrylic spinning oil | |
| CN103437186B (en) | Preparation method of high-speed polyester POY (Pre-Oriented Yarn) spinning oil agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180727 |
|
| WD01 | Invention patent application deemed withdrawn after publication |