CN1405368A - Efficent fluorescent composite sheath-core fiber, and its manufacture method and application - Google Patents
Efficent fluorescent composite sheath-core fiber, and its manufacture method and application Download PDFInfo
- Publication number
- CN1405368A CN1405368A CN 02137634 CN02137634A CN1405368A CN 1405368 A CN1405368 A CN 1405368A CN 02137634 CN02137634 CN 02137634 CN 02137634 A CN02137634 A CN 02137634A CN 1405368 A CN1405368 A CN 1405368A
- Authority
- CN
- China
- Prior art keywords
- fluorescent
- fiber
- efficent
- spinning
- high polymer
- 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
Images
Landscapes
- Multicomponent Fibers (AREA)
Abstract
The invention refers to a high-efficacy fluorescent skin-core complexing fiber as well as the making method and application. The fiber comprises of high polymer cortex and core layer of fluorescent mixture. The core layer comprises one or two kinds of fluorescent mixtures.
Description
Technical field
The present invention relates to the material field, be specifically related to a kind of efficent fluorescent composite sheath-core fiber and manufacture method thereof and application.
Background technology
Along with expanding economy, commodity market prosperity, fake and inferior commodities frequently occur, and are full of every field, become the public hazards in the whole world.These fake product behaviors not only bring loss to national economy, upset national financial order, even bring about great losses for people's lives and properties.Survey report according to federation of French manufacturer shows that counterfeit and fake product has accounted for the 5-6% of quantum of world trade, hundred million dollars of about 1000-1200, and the economic loss that China's year personation counterfeit or inferior quality goods cause reaches 3,000 hundred million RMB.Therefore with contemporary advanced, greatly develop anti-counterfeiting technology, actively take false proof means to prevent and hit the forgery behavior, in current economic develop rapidly, seem very urgent.
The false proof means that current manufacturer uses adopt the fluorescence series of products mostly, as fluorescent ink, fluorescent fiber.Fluorescent ink is on the make simpler, generally adds fluorescent chemicals in printing ink, makes the printing trade mark then.This trade mark is under the ultra violet lamp of specific wavelength, and the fluorescent chemicals brilliance that can glimmer in the printing ink uses the fluorescent chemicals of different colours can send the light of different colours.But the manufacturing of this kind method is simple, the imitation of easily being given away secrets.Fluorescent fiber is the antifalse fiber that grew up in recent years, and its manufacturing technique is comparatively complicated, and it is earlier with fluorescent chemicals and fiber-forming polymer blend, obtain the fluorescence master batch, fluorescence master batch and high polymer mix, and obtain fluorescent mixture, get through spinning, coiling, stretching again.Fluorescent fiber is mainly used in anti-fake certificate, bill, trade mark, garment decoration and other can discern the field.For example Japan, Germany make cheque paper with it, just fluorescent fiber are cut into the fubril of certain-length, it are added in the paper then can make cheque paper.Fiber in the paper be can't see, but fiber will present a kind of color under the ultraviolet ray irradiation.In the latest domestic version RMB fluorescent fiber is arranged also, form but above-mentioned fluorescent fiber all is single wavelength fluorescent compound.Along with progress of science and technology, these false proof measures also are easy to give away secrets.Simultaneously, this kind fluorescent fiber is subjected to back processing conditions and surrounding environment influence, the less stable of fluorescence property.
Summary of the invention
Technical problem to be solved by this invention provides a kind of wear-resistant and have a fluorescent composite fibre of efficient anti-fake effect.
Efficent fluorescent composite sheath-core fiber disclosed by the invention is made up of high polymer cortex and fluorescent mixture sandwich layer, and wherein the fluorescent mixture sandwich layer has the fluorescent chemicals of one or both wavelength.
Fluorescent mixture sandwich layer of the present invention is made up of fluorescence master batch and high polymer, and wherein fluorescent chemicals content is 1-10%.Described fluorescence master batch is that 45-91.5% high polymer, 5-40% fluorescent chemicals, 0-2% coupling agent and 0-3% dispersant are formed by percentage by weight.
Described high polymer is selected from TPO, polyesters and polyamide-based, and the high polymer in cortex and the sandwich layer can be identical or different.
Described fluorescent chemicals is the fluorescent chemicals of inorganic or organic class, and its excitation wavelength is 254nm or 365nm.
Described coupling agent is titanate ester (as NDN-101), silanes (as KH-550, A-151) and aluminium esters of gallic acid (as DL-411).
Described dispersant is low molecular weight polyethylene wax, EVA.
The high polymer of composite fluorescence fiber mediopellis of the present invention and the compound ratio of the fluorescent mixture of sandwich layer are 30-70: 70-30w/w.
Skin-core structure of the present invention contains the mixture of single wavelength or long and short two kinds of wavelength fluorescent compounds as shown in Figure 1 in its center core layer 1 polymer, cortex 2 is the high polymer layer.
Another technical problem to be solved by this invention is the manufacture method that discloses above-mentioned efficent fluorescent composite sheath-core fiber.
The preparation of efficent fluorescent composite sheath-core fiber of the present invention comprises the following steps:
(1) fluorescence master batch preparation: fluorescent chemicals is made the fluorescence master batch by prescription and high polymer, coupling agent, dispersant blend.Fluorescent chemicals content is≤40% in the master batch.
(2) spinning material preparation: according to fluorescent chemicals content in the fluorescence master batch, sneak into fiber-forming polymer in proportion, making fluorescent chemicals content in high polymer is 1-10%, and high polymer is identical with the fiber-forming polymer of sneaking in the master batch;
(3) spinning: spinning equipment is the twin-screw spinning machine, and spinning pack is a core-skin type, during spinning at first with fluorescent mixture melt extruded, metering in a screw rod; And pure high polymer after melt extruded, the metering, enters same spinning pack again in another root screw rod, and two kinds of melts are respectively walked the road of each in spinning pack, until the spinneret orifice place converges and extrudes spinneret orifice, spins fiber; Fiber passes through upper oil-pan, by reeling behind draw-off godet, the last draw-off godet down.Spinning temperature is 200-285 ℃, and winding speed is 600-1500m/min; Draw ratio 2.5-4 times, draft temperature 50-85/100-150 ℃.The compound ratio of core-skin is 30-70: 70-30 (w/w).
A technical problem more to be solved by this invention is to disclose the application of above-mentioned efficent fluorescent composite sheath-core fiber in the preparation anti-fake product.
Efficent fluorescent composite sheath-core fiber of the present invention can be used for the false proof of certificate, bill, trade mark, clothes, decoration and other field.
Efficent fluorescent composite sheath-core fiber disclosed by the invention contains the fluorescent chemicals of one or both wavelength in fiber, wavelength is 365nm or 254nm.Fluorescent chemicals and the color that can Gong select for use be as shown in table 1 below.
Table 1 fluorescent chemicals
Wavelength model coloured light
SW1-SO is organic red
Long JGUV-R is inorganic red
JGUV-B indigo plant
The JGUV-O orange
Ripple JGUV-Y Huang
JGUV-G is green
The JGUV-P purple
JGUV-W is white
Short JGUVS-R is red
JGUVS-B indigo plant
Ripple JGUVS-G is green
Efficent fluorescent composite sheath-core fiber disclosed by the invention is compared with existing single wavelength fluorescent fiber has following many-sided remarkable advantage:
1, efficent fluorescent composite sheath-core fiber manufacture method complexity is not if having specific twin-screw spinning equipment and assembly then can't copy.Simultaneously, the also general spinning complexity of composite spinning technology.If do not grasp composite spinning technology, also can't forge, so this fluorescent fiber security is better.
2, the fluorescent fiber mechanical property and the general fibre that make of the present invention is very nearly the same, fibre strength 〉=2.5CN/dtex, monfil dawn number 〉=1.2dtex.
3, high-efficiency fluorescence core-skin composite fluorescence fiber can have efficient antiforge function with the color of glimmering under 365nm or the 254nm wavelength ultraviolet ray irradiation.
4, fluorescent chemicals is included in the sandwich layer, the fluorescent fiber that makes except than the good spinnability that not to coat, fiber mechanics character well, also can make the fiber fluorescence intensity avoid back processing and use in extraneous conditions and environment to its influence, and lose fluorescent characteristic.As solvent, soda acid, illumination etc.Therefore, this method durability, stability are better.
Description of drawings
Fig. 1 sheath core fiber structural representation
Wherein 1 is sandwich layer, and 2 is cortex
The specific embodiment
It is SWI-SO that high polymer adopts polypropylene (melt index＞40) fluorescent material.1 part of fluorescent chemicals and polypropylene are kneaded by high-speed kneader for 9 parts, extruded by screw extruder fusion, blend, granulation obtains the fluorescence master batch; The content of the fluorescent chemicals in the fluorescence master batch is 10%.3 parts of fluorescence master batches and 7 parts of polypropylene mix the fluorescent mixture that obtains sandwich layer.By the core-skin composite spinning silk, the core-skin ratio is 50: 50 to polypropylene as sandwich layer as cortex, fluorescent mixture, and spinning temperature is＜230 ℃, spinning speed 800m/min, 3.5 times of draw ratios, 70/100 ℃ of draft temperature.Make efficent fluorescent composite sheath-core fiber.
The cortex high polymer adopts PET, and the sandwich layer high polymer adopts polypropylene, and fluorescent chemicals is SWI-SO
1 part of fluorescent chemicals and polypropylene are kneaded by high-speed kneader for 9 parts, extruded by screw extruder fusion, blend, granulation obtains the fluorescence master batch; The content of the fluorescent chemicals in the fluorescence master batch is that 10%, 5 part fluorescence master batch and 5 parts polypropylene mixing obtain the sandwich layer fluorescent mixture.PET as cortex, fluorescent mixture as sandwich layer by the core-skin composite spinning silk, the core-skin ratio is 40: 60, spinning temperature is at 240 ℃-285 ℃, spinning speed 600m/min, 3.5 times of draw ratios, 80/120 ℃ of draft temperature.Make efficent fluorescent composite sheath-core fiber.
Embodiment 3
High polymer adopts polypropylene, fluorescent chemicals: JGUV-R, coupling agent: NDZ-101, dispersant: EVA.
The preparation of fluorescence master batch: 1 part of coupling agent is dissolved in 5 parts of alcohol solvents, gets ethanolic solution and 1 part of fluorescent chemicals JGUV-R high-speed stirred of containing 0.03 part of coupling agent, coupling agent fully coats JGUV-R, at last with alcohol solvent volatilization and pulverizing.This JGUV-R of 1 part and 9 parts of polypropylene and 0.03 part of dispersant (EVA) are kneaded by high-speed kneader again, extruded by screw extruder fusion, blend, granulation obtains the fluorescence master batch.The content of fluorescent chemicals is 10% in the fluorescence master batch.
The polypropylene of 4 parts of fluorescence master batches and 6 parts mixes and obtains the sandwich layer fluorescent mixture.
Fiber is made: by the core-skin composite spinning silk, the core-skin ratio is 40: 60 to polypropylene as sandwich layer as cortex, fluorescent mixture, and spinning temperature is at 275 ℃, spinning speed 600m/min, 3.5 times of draw ratios, 70/100 ℃ of draft temperature.Make efficent fluorescent composite sheath-core fiber.
Embodiment 4
High polymer adopts polypropylene, fluorescent chemicals: JGUV-R, JGUVS-B coupling agent: NDZ-101, dispersant: EVA.
Fluorescence master batch preparation: 1 part of coupling agent is dissolved in 5 parts of alcohol solvents, get the ethanolic solution that contains 0.03 part of coupling agent, 0.5 part of fluorescent chemicals JGUV-R and 0.5 part of fluorescent chemicals JGUVS-B high-speed stirred, coupling agent fully coats JGUV-R and JGUVS-B, at last with alcohol solvent volatilization and pulverizing.This JGUV-R of 2 parts and JGUVS-B, 8 parts of polypropylene and 0.03 part of dispersant (EVA) are kneaded by high-speed kneader again, extruded by screw extruder fusion, blend, granulation obtains the fluorescence master batch.Long-wavelength fluorescence compound and shortwave fluorescent chemicals content are respectively 10% in the fluorescence master batch.(2), the polypropylene of 5 parts of fluorescence master batches and 5 parts mixes and obtains the sandwich layer fluorescent mixture.(3), the fiber manufacturing: polypropylene as cortex, fluorescent mixture as sandwich layer by the core-skin composite spinning silk, the core-skin ratio is 50: 50, spinning temperature is at 275 ℃, spinning speed 600m/min, 3.5 times of draw ratios, 70/100 ℃ of draft temperature.Make efficent fluorescent composite sheath-core fiber.
Claims (7)
1, a kind of efficent fluorescent composite sheath-core fiber is characterized in that this composite fibre is made up of high polymer cortex and fluorescent mixture sandwich layer, and wherein the fluorescent mixture sandwich layer has the fluorescent chemicals of one or both wavelength.
2, a kind of efficent fluorescent composite sheath-core fiber as claimed in claim 1 is characterized in that wherein fluorescent chemicals is made up of fluorescence master batch and high polymer, and wherein fluorescent chemicals content is 1-10%; Described fluorescence master batch is that 45-91.5% high polymer, 5-40% fluorescent chemicals, 0-2% coupling agent and 0-3% dispersant are formed by percentage by weight.
3, a kind of efficent fluorescent composite sheath-core fiber as claimed in claim 2 is characterized in that wherein said high polymer is selected from TPO, polyesters and polyamide-based; Described coupling agent is selected from titanate ester, silanes and aluminium esters of gallic acid; Described dispersant is selected from low molecular weight polyethylene wax and EVA.
4, a kind of efficent fluorescent composite sheath-core fiber as claimed in claim 1 or 2 is characterized in that wherein said fluorescent chemicals is the fluorescent chemicals of inorganic or organic class, and its excitation wavelength is 254nm or 365nm.
5, a kind of efficent fluorescent composite sheath-core fiber as claimed in claim 1 is characterized in that the high polymer of wherein said composite fluorescence fiber mediopellis and the compound ratio of fluorescent mixture of sandwich layer are 30-70: 30-70w/w.
6, a kind of preparation method of efficent fluorescent composite sheath-core fiber as claimed in claim 1 is characterized in that the preparation of high-efficiency fluorescence composite fibre comprises the following steps:
(1) fluorescence master batch preparation: fluorescent chemicals is made the fluorescence master batch by prescription and high polymer, coupling agent, dispersant blend; Fluorescent chemicals content is≤40% in the master batch;
(2) spinning material preparation: according to fluorescent chemicals content in the fluorescence master batch, sneak into fiber-forming polymer in proportion, making fluorescent chemicals content in high polymer is 1-10%, and high polymer is identical with the fiber-forming polymer of sneaking in the master batch;
(3) spinning: spinning equipment is the twin-screw spinning machine, and spinning pack is a core-skin type, during spinning at first with fluorescent mixture melt extruded, metering in a screw rod; And pure high polymer after melt extruded, the metering, enters same spinning pack again in another root screw rod, and two kinds of melts are respectively walked the road of each in spinning pack, until the spinneret orifice place converges and extrudes spinneret orifice, spins fiber; Fiber passes through upper oil-pan, by reeling behind draw-off godet, the last draw-off godet down; Spinning temperature is 200-285 ℃, and winding speed is 600-1500m/min; Draw ratio 2.5-4 times, draft temperature 50-85/100-150 ℃; The compound ratio of core-skin is 30-70: 70-30w/w.
7, the application of a kind of efficent fluorescent composite sheath-core fiber as claimed in claim 1 in the preparation anti-fake product is characterized in that this composite fibre can be used for the false proof of certificate, bill, trade mark, clothes, decoration and other field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02137634 CN1405368A (en) | 2002-10-25 | 2002-10-25 | Efficent fluorescent composite sheath-core fiber, and its manufacture method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02137634 CN1405368A (en) | 2002-10-25 | 2002-10-25 | Efficent fluorescent composite sheath-core fiber, and its manufacture method and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1405368A true CN1405368A (en) | 2003-03-26 |
Family
ID=4749067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02137634 Pending CN1405368A (en) | 2002-10-25 | 2002-10-25 | Efficent fluorescent composite sheath-core fiber, and its manufacture method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1405368A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094254A (en) * | 2010-12-23 | 2011-06-15 | 黑龙江大学 | Preparation method of seven-color fluorescent rare-earth ion/polymer nanometer composite fibers |
| CN102199874A (en) * | 2011-04-13 | 2011-09-28 | 龚文忠 | Core-shell structured anti-counterfeit fiber filament |
| CN102943348A (en) * | 2012-10-31 | 2013-02-27 | 浙江三星特种纺织有限公司 | Fluorescent composite coated wire braided fabric |
| CN103132173A (en) * | 2011-11-30 | 2013-06-05 | 辽宁银珠化纺集团有限公司 | Long-persistence, light-storage and light-emitting nylon 66 fiber and preparation method of same |
| CN103668557A (en) * | 2013-11-18 | 2014-03-26 | 浙江三星特种纺织有限公司 | Photosensitive sheath core coating yarn and preparation method thereof |
| CN104824891A (en) * | 2015-05-20 | 2015-08-12 | 海安县兄弟合成纤维有限公司 | Thermal-sensitive composite fabric |
| CN105541149A (en) * | 2015-12-08 | 2016-05-04 | 余姚市交通规划设计研究院 | Modified concentric composite fine fiber for bituminous pavement surface layer and use thereof |
| CN108642600A (en) * | 2018-04-27 | 2018-10-12 | 昆山保扬新型材料科技有限公司 | A kind of original liquid coloring fluorescence anti-ultraviolet polyester fibers and preparation method thereof |
| CN110387640A (en) * | 2019-06-21 | 2019-10-29 | 爹地宝贝股份有限公司 | A kind of fluorescent nonwoven fabric and preparation method thereof for health product |
| CN111793849A (en) * | 2020-07-13 | 2020-10-20 | 常熟涤纶有限公司 | Nylon fiber with carboxyl-functionalized high-fluorescence polyacrylic acid microsphere in skin layer |
| CN112921447A (en) * | 2021-01-28 | 2021-06-08 | 广东新会美达锦纶股份有限公司 | High-brightness high-color-fastness fluorescent nylon composite fiber and preparation method thereof |
| CN114457489A (en) * | 2022-03-23 | 2022-05-10 | 合肥工业大学 | Fluorescent polylactic acid fiber fabric with core-shell structure |
| CN114507915A (en) * | 2022-01-25 | 2022-05-17 | 中国科学院苏州纳米技术与纳米仿生研究所 | Fluorescent composite fiber and preparation method and application thereof |
-
2002
- 2002-10-25 CN CN 02137634 patent/CN1405368A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094254A (en) * | 2010-12-23 | 2011-06-15 | 黑龙江大学 | Preparation method of seven-color fluorescent rare-earth ion/polymer nanometer composite fibers |
| CN102094254B (en) * | 2010-12-23 | 2012-05-23 | 黑龙江大学 | Preparation method of seven-color fluorescent rare-earth ion/polymer nanometer composite fibers |
| CN102199874A (en) * | 2011-04-13 | 2011-09-28 | 龚文忠 | Core-shell structured anti-counterfeit fiber filament |
| CN103132173A (en) * | 2011-11-30 | 2013-06-05 | 辽宁银珠化纺集团有限公司 | Long-persistence, light-storage and light-emitting nylon 66 fiber and preparation method of same |
| CN102943348A (en) * | 2012-10-31 | 2013-02-27 | 浙江三星特种纺织有限公司 | Fluorescent composite coated wire braided fabric |
| CN103668557A (en) * | 2013-11-18 | 2014-03-26 | 浙江三星特种纺织有限公司 | Photosensitive sheath core coating yarn and preparation method thereof |
| CN104824891A (en) * | 2015-05-20 | 2015-08-12 | 海安县兄弟合成纤维有限公司 | Thermal-sensitive composite fabric |
| CN105541149A (en) * | 2015-12-08 | 2016-05-04 | 余姚市交通规划设计研究院 | Modified concentric composite fine fiber for bituminous pavement surface layer and use thereof |
| CN108642600A (en) * | 2018-04-27 | 2018-10-12 | 昆山保扬新型材料科技有限公司 | A kind of original liquid coloring fluorescence anti-ultraviolet polyester fibers and preparation method thereof |
| CN108642600B (en) * | 2018-04-27 | 2020-12-15 | 昆山保扬新型材料科技有限公司 | Stock solution coloring fluorescent ultraviolet-proof polyester fiber and preparation method thereof |
| CN110387640A (en) * | 2019-06-21 | 2019-10-29 | 爹地宝贝股份有限公司 | A kind of fluorescent nonwoven fabric and preparation method thereof for health product |
| CN111793849A (en) * | 2020-07-13 | 2020-10-20 | 常熟涤纶有限公司 | Nylon fiber with carboxyl-functionalized high-fluorescence polyacrylic acid microsphere in skin layer |
| CN111793849B (en) * | 2020-07-13 | 2022-06-17 | 常熟涤纶有限公司 | Nylon fiber with carboxyl-functionalized high-fluorescence polyacrylic acid microsphere in skin layer |
| CN112921447A (en) * | 2021-01-28 | 2021-06-08 | 广东新会美达锦纶股份有限公司 | High-brightness high-color-fastness fluorescent nylon composite fiber and preparation method thereof |
| CN114507915A (en) * | 2022-01-25 | 2022-05-17 | 中国科学院苏州纳米技术与纳米仿生研究所 | Fluorescent composite fiber and preparation method and application thereof |
| CN114507915B (en) * | 2022-01-25 | 2024-03-19 | 中国科学院苏州纳米技术与纳米仿生研究所 | Fluorescent composite fiber and preparation method and application thereof |
| CN114457489A (en) * | 2022-03-23 | 2022-05-10 | 合肥工业大学 | Fluorescent polylactic acid fiber fabric with core-shell structure |
| CN114457489B (en) * | 2022-03-23 | 2023-08-22 | 合肥工业大学 | Fluorescent polylactic acid fiber fabric with core-shell structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1216188C (en) | Double wave length fluorescent composite fibre, its production method and application | |
| JP4551469B2 (en) | Security products | |
| CN1405368A (en) | Efficent fluorescent composite sheath-core fiber, and its manufacture method and application | |
| CN204265905U (en) | Antiforge function polyester PET superbhort fiber preparation system | |
| CN1966785A (en) | Infrared anti-false fiber and its production method and use | |
| CN1620527A (en) | Security articles comprising multi-responsive physical colorants | |
| CN1313657C (en) | A sea-island typed conjugate multi filament comprising dope dyeing component, and a process of preparing for the same | |
| CN101215731A (en) | Method for preparing self-luminescence polyester chopped fiber | |
| CN102199874A (en) | Core-shell structured anti-counterfeit fiber filament | |
| CN101597816A (en) | The preparation method of colorized fire-retardant delustering hollow polyester filament | |
| CN101112849A (en) | Anti-counterfeit method and anti-counterfeit system for realizing said method and device thereof | |
| CN102586917A (en) | Method for preparing fluorescent anti-counterfeiting Lyocell fibers | |
| CN106633834A (en) | Black masterbatch, nylon 6 fiber and preparation method of black masterbatch and nylon 6 fiber | |
| CN1215116C (en) | Resin composition and moulded products made of said composition | |
| US20090311527A1 (en) | Functional Fiber for Preventing Forgery | |
| JP2012021159A (en) | Dyed cellulosic shaped object | |
| CN104947230A (en) | Preparation method of luminescent fiber | |
| CN101864605A (en) | Near-infrared absorption counterfeit fiber and preparation method thereof | |
| CN1114722C (en) | Ultraviolet fluorescent fibre | |
| CN101440591B (en) | Fluorescent fibre for anti-counterfeiting document and anti-counterfeiting file | |
| Zhang et al. | UV‐excitable fluorescent poly (lactic acid) fibers | |
| CN1570226A (en) | Core-skin light storage fabric, method for manufacturing same and use thereof | |
| CN110016729B (en) | Hollow PLA fiber containing metal modified cross-shaped esterified substance and preparation method thereof | |
| CN1349007A (en) | High luminosity luminous fiber, its prepn. method, and the braided fabric therewith | |
| CN1425812A (en) | Method for producing short colored polyester staple |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |