CN105926203A - Oiling method for para-aramid fibers - Google Patents
Oiling method for para-aramid fibers Download PDFInfo
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- CN105926203A CN105926203A CN201610288897.1A CN201610288897A CN105926203A CN 105926203 A CN105926203 A CN 105926203A CN 201610288897 A CN201610288897 A CN 201610288897A CN 105926203 A CN105926203 A CN 105926203A
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- para
- aramid fiber
- oil
- oils
- fiber tow
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
- D06B5/02—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length
- D06B5/06—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length through yarns, threads or filaments
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention provides an oiling method for para-aramid fibers and belongs to the technical field of artificial fiber preparation. The oiling method comprises steps as follows: oil in an oil tank is heated, para-aramid fiber bundles subjected to spinning, washing, neutralizing and drying sequentially are enabled to pass through an oiling device corresponding to the oil tank and equipped with a plurality of nozzles, each para-aramid fiber bundle corresponds to one nozzle, and each nozzle applies oil to the corresponding para-aramid fiber bundle; the oiled para-aramid fiber bundles are enabled to enter a roll type extrusion device after leaving the oiling device, oil attached to the surfaces of the para-aramid fiber bundles uniformly permeates into fiber texture of the para-aramid fiber bundles, and the oiled para-aramid fibers are obtained. According to the oiling method for the para-aramid fibers, plentiful oil can be obtained by the para-aramid fiber bundles; the oil can permeate into the fibers, so that the oil is uniformly applied to the outsides and the insides of the para-aramid fiber bundles, and quality guarantee is provided for production of follow-up products.
Description
Technical field
The invention belongs to staple fibre preparing technical field, be specifically related to a kind of method that oils of para-aramid fiber.
Background technology:
The chemical name of para-aramid fiber is Fanglun 1414's (PPTA fiber), is to benzene two by poly-
Formyl p-phenylenediamine polymer powder dissolves and forms spinning solution that is anisotropic and that have liquid crystal behavior in concentrated sulfuric acid,
Use the spinning process of dry-jet wet-spinning after spinning head sprays, be frozen into for coagulating bath with dilute sulfuric acid in special coagulation system
Type is fibre bundle, more scrubbed, neutralize, dry, stretch or shape, then oil winding formed finished fiber,
This fiber belongs to high intensity, high-modulus high temperature resistant type fiber.Such as United States Patent (USP) US 3767756 and world patent WO9634732
All describe the preparation method of this fibrid.
United States Patent (USP) US 20130157054 describes the preparation method of a kind of heavy denier yarn aramid fiber, and described aramid fiber is para-position
Aramid fiber, has the fibre orientation angle less than 8 degree, and the fiber number of described para-aramid fiber is at least 2666dtex, described
The modulus of para-aramid fiber is at least 900g/d.Preparation flow is described in detail: by liquid crystal state in this patent specification
P-aramid fiber spinning solution through porous spinneret spray, be then passed through an air layer and coagulating bath solidification forming be fiber
Tow, cleans this fibre bundle and removes, the liquid of fiber surface then at 120～260 DEG C and the tension force of 1～2.5g/d
Lower drying, drying time is 1.6～6s, the most again heat treatment further to this fiber, and heat treatment temperature is 300～400
DEG C, tension force is 2.5～5g/d, and the time is 0.2～5s.This fiber is cooled down to 125～170 DEG C, then to fibre after thermal finalization
Dimension carries out oiling treatment, refer to oil, but do not have the most concrete oiling method, from this patent specification in this patent
Accompanying drawing can be seen that this patent oils number of times the most once.
Chinese invention patent application publication No. CN104963010A recommends there be " a kind of para-aramid fiber double-face oiling device ",
Specifically disclose the first oil-adding mechanism and the second oil-adding mechanism being vertically arranged from top to bottom, due to the oil by the first oil-adding mechanism
The oil nozzle of mouth and the second oil-adding mechanism is set in opposite directions, thus can realize oiling the both sides of fiber (description the 0019th section),
The positive effect of this patent can be found in its description the 0022nd to 0024 section.Additionally, utility model patent Authorization Notice No.
CN203855723U is provided with " a kind of p-aramid fiber oiling device ", and it, is incited somebody to action by oil dripping tube to oil dripping tube fuel feeding by oil inlet pipe
Oil preparation drops to the para-aramid fiber on oiling roller below, and the bottom of oiling roller is immersed in oil-containing groove, in oil-containing groove
Oil preparation drawn and recycle (seeing description the 0008th and 0010 section) by the oil-containing groove flowline connected with oil-containing groove.
Although aforementioned two patent formula being not limited to enumerate are respectively arranged with part of contributing accordingly, it can be difficult to make oil preparation penetrate into fiber
Inside is its shortcoming, and only makes oil preparation effectively penetrate into fibrous inside and could obtain the uniformity that oils truly,
Otherwise there will be the negative and positive situation failed to act and thought in the same way.
As is known in the industry, para-aramid fiber during spinning, by each spinneret out be mass of fibers,
According to the difference of fiber Denier, the filamentary radical in fibre bundle is from tens to thousand of, and oils and require oil preparation energy
Enough uniformly in contact with to each filamentary surface, oil preparation is the most uniform, and the quality of fiber is the best.
The molecular structure of p-aramid fiber is the macromolecular structure of rigid chain, and has the highest fibre orientation degree and degree of crystallinity,
Although p-aramid fiber hot strength is the highest, but fiber is the lowest in shear strength radially, then when downstream product produces,
Fiber all first has to carry out rewinding and the processing through a series of devices, and due to molecular structure that p-aramid fiber is special make right
Position aramid fiber is very easy to fluffing due to rubbing action in rewinding and the rear road course of processing, has influence on product quality.And on uniformly
On the one hand the purpose of oil aims to solve the problem that para-aramid fiber fluffs problem in the rear road course of processing.
On the other hand, p-aramid fiber is due to extra high hot strength so that it has been widely used at field of compound material tool,
Such as shellproof Compound Fabric, anti-stab Compound Fabric, tire cord, rubber tube reinforcing material etc..But para-aramid fiber is due to spy
Different molecular structure, on its strand, active group is fewer, the most inert state of fiber surface, is combined with other materials
Force rate is more weak.And when field of compound material uses, the adhesion between fiber and matrix resin or rubber directly influences multiple
The quality of condensation material.Therefore another purpose that p-aramid fiber oils is to improve the bonding force between fiber and matrix resin.Close
Para-aramid fiber is oiled the bonding force that can improve between p-aramid fiber and resin or rubber by suitable oil formula, equally to right
The uniformity that position aramid fiber oils also is overlooking either of the two of the combination effect between enhancement p-aramid fiber and resin or rubber
Key factor.
Summary of the invention
The task of the present invention is to provide a kind of method that oils of para-aramid fiber, the method that para-aramid fiber can be made in system
Obtain during Bei and excellent uniformly oil effect and use the production into subsequent product and quality assurance is provided.
The task of the present invention is performed by, a kind of method that oils of para-aramid fiber, comprises the following steps:
A) oil, make to sequentially pass through when the oil preparation in oil preparation groove being heated and use raising oil preparation mobility spinning,
Washing, neutralization and dried para-aramid fiber tow are furnished with a plurality of nozzle by way of arrange corresponding to described oil preparation groove
Oiling device, and make every a branch of para-aramid fiber tow correspond respectively to a nozzle, control oil at oil agent metering pump
By described nozzle, described para-aramid fiber tow is oiled under the state of agent flux, the para-aramid fiber silk after being oiled
Bundle；
B) oil preparation is endosmosis, in step A) described in oil after para-aramid fiber tow row go out described oiling device after make it
Enter roller extruder device, roller extruder device the para-aramid fiber tow after oiling is extruded and use and make to attach right
The described oil preparation uniformly penetrating on aramid fiber tow surface, position, to inside the fibrous tissue of para-aramid fiber tow, is oiled
Para-aramid fiber.
In a specific embodiment of the present invention, step A) described in sequentially pass through spinning, wash, neutralize and dry
The fiber number of the para-aramid fiber tow after dry is 200-3000D.
In another specific embodiment of the present invention, step A) described in sequentially pass through spinning, wash, neutralize and
The moisture content of dried para-aramid fiber tow is 7-15%.
In another specific embodiment of the present invention, step A) described in para-aramid fiber tow oil to described
The speed that device is advanced is 400-1000m/min.
In another specific embodiment of the present invention, step A) described in the heating-up temperature of oil preparation heating be 60-80
℃。
Also having in a specific embodiment in the present invention, step B) described in oil after para-aramid fiber tow
Row enters speed 400-1000m/min of described roller extruder device after going out described oiling device.
In more and in a specific embodiment of the present invention, described roller extruder device includes what self was correspondingly arranged
One working roll and a backing roll, described oil after para-aramid fiber tow by way of between working roll and backing roll.
The present invention's and then in a specific embodiment, described working roll is nonmetal roller, and described backing roll is
Metallic roll.
In the most more and in a specific embodiment of the present invention, described nonmetal roller is rubber rollers.
In again and then in a specific embodiment of the present invention, step B) described in the containing of the para-aramid fiber oiled
Oil rate is the 0.8-1.5% of para-aramid fiber weight.
The present invention provide technical scheme due to make every a branch of para-aramid fiber tow respectively by way of oiling device nozzle also
And the most oily by nozzle, thus para-aramid fiber tow can be made to obtain plentiful oil preparation；Due to the para-position virtue after oiling
Synthetic fibre fiber introduces roll-type pressurizing unit, thus oil preparation can be made to fibrous inside endosmosis, makes the exterior and the interior of para-aramid fiber tow obtain
Obtaining uniform oil preparation, the production for subsequent product provides quality assurance.
Accompanying drawing explanation
Fig. 1 is the oiling device used by the inventive method and the schematic diagram of roll-type roll compaction equipment.
Detailed description of the invention
Referring to Fig. 1, figure 1 illustrates oiling device 2, it is fine that this oiling device has p-aramid fiber to that indicated in the drawings
Tie up a plurality of nozzles that the quantity of tow 1 is equal.Also show roll-type roll compaction equipment 3 in FIG, this roll-type roll compaction equipment
3 include working roll 31 and a backing roll 32, and working roll 31 self is correspondingly arranged with backing roll 32, and works
Roller 31 is nonmetal roller, nonmetal roller such as rubber rollers, and backing roll is then metallic roll.After row goes out the oiling of oiling device 2
Para-aramid fiber tow pass through between working roll 31 and backing roll 32.Additionally, according to specialty general knowledge, working roll 31
And backing roll 32 is in the frame being rotatably supported at and having oil preparation accumulator tank.
Embodiment 1:
Incorporated by reference to Fig. 1.
A) oil, (be furnished with heating element heater in oil preparation groove such as the oil preparation in oil preparation groove (not shown) is heated to 60 DEG C
Electric heating tube) and use and make to sequentially pass through spinning under the state improving oil preparation mobility, wash, neutralize and dried fibre
Degree for para-aramid fiber tow 1 that 200D, moisture content are 7% with the gait of march of 400m/min by way of corresponding to oil preparation
Oiling device 2 that is that groove is arranged and that be furnished with the nozzle equal with the quantity of para-aramid fiber tow 1, every a branch of para-position virtue
Synthetic fibre fibre bundle 1 corresponding to a nozzle, when oil agent metering pump controls oil preparation flow by nozzle (i.e. go up oil nozzle,
As follows) para-aramid fiber tow 1 is oiled, the para-aramid fiber tow after must oiling；
B) oil preparation is endosmosis, in step A) oil after para-aramid fiber tow row go out after oiling device 2 with 400m/min
Gait of march make it between the working roll 31 of roller extruder device 3 and backing roll 32, right by roller extruder device 3
Para-aramid fiber tow extruding after oiling and use and make to attach the oil preparation on para-aramid fiber tow surface and ooze equably
Thoroughly to inside the fibrous tissue of para-aramid fiber tow, oiling of obtain that oil content is para-aramid fiber weight 0.8%
Para-aramid fiber.
Embodiment 2:
Incorporated by reference to Fig. 1.
A) oil, (be furnished with heating element heater in oil preparation groove such as the oil preparation in oil preparation groove (not shown) is heated to 80 DEG C
Electric heating tube) and use and make to sequentially pass through spinning under the state improving oil preparation mobility, wash, neutralize and dried fibre
Degree for para-aramid fiber tow 1 that 300D, moisture content are 10% with the gait of march of 600m/min by way of corresponding to oil preparation
Oiling device 2 that is that groove is arranged and that be furnished with the nozzle equal with the quantity of para-aramid fiber tow 1, every a branch of para-position virtue
Synthetic fibre fibre bundle 1 is corresponding to a nozzle, fine to p-aramid fiber by nozzle when oil agent metering pump controls oil preparation flow
Dimension tow 1 oils, the para-aramid fiber tow after must oiling；
B) oil preparation is endosmosis, in step A) oil after para-aramid fiber tow row go out after oiling device 2 with 600m/min
Gait of march make it between the working roll 31 of roller extruder device 3 and backing roll 32, right by roller extruder device 3
Para-aramid fiber tow extruding after oiling and use and make to attach the oil preparation on para-aramid fiber tow surface and ooze equably
Thoroughly to inside the fibrous tissue of para-aramid fiber tow, oiling of obtain that oil content is para-aramid fiber weight 1.5%
Para-aramid fiber.
Embodiment 3:
Incorporated by reference to Fig. 1.
A) oil, (be furnished with heating element heater in oil preparation groove such as the oil preparation in oil preparation groove (not shown) is heated to 70 DEG C
Electric heating tube) and use and make to sequentially pass through spinning under the state improving oil preparation mobility, wash, neutralize and dried fibre
Spending for 1500D, moisture content is that the para-aramid fiber tow 1 of 10% is oily by way of corresponding to the gait of march of 1000m/min
Oiling device 2 that is that agent groove is arranged and that be furnished with the nozzle equal with the quantity of para-aramid fiber tow 1, every a branch of para-position
Aramid fiber tow 1 is corresponding to a nozzle, when oil agent metering pump controls oil preparation flow by nozzle to p-aramid fiber
Fibre bundle 1 oils, the para-aramid fiber tow after must oiling；
B) oil preparation is endosmosis, in step A) oil after para-aramid fiber tow row go out after oiling device 2 with 1000m/min
Gait of march make it between the working roll 31 of roller extruder device 3 and backing roll 32, right by roller extruder device 3
Para-aramid fiber tow extruding after oiling and use and make to attach the oil preparation on para-aramid fiber tow surface and ooze equably
Thoroughly to inside the fibrous tissue of para-aramid fiber tow, oiling of obtain that oil content is para-aramid fiber weight 1%
Para-aramid fiber.
Oiling the most uniform to characterize fiber, applicant uses the bonding force method of testing between test fiber and rubber to carry out table
Levy.Testing standard is with reference to the method for testing of ASTM D4776-98.The test result of embodiment 1-3 and comparative example such as following table
Shown in.
Claims (10)
1. the method that oils of a para-aramid fiber, it is characterised in that comprise the following steps:
A) oil, make to sequentially pass through spinning when the oil preparation in oil preparation groove being heated and use raising oil preparation mobility, wash, neutralize and dried para-aramid fiber tow is by way of the oiling device being furnished with a plurality of nozzle arranged corresponding to described oil preparation groove, and make every a branch of para-aramid fiber tow correspond respectively to a nozzle, described para-aramid fiber tow is oiled by described nozzle when oil agent metering pump controls oil preparation flow, the para-aramid fiber tow after being oiled；
B) oil preparation is endosmosis, in step A) described in oil after para-aramid fiber tow row go out described oiling device after make it into roller extruder device, by roller extruder device, the para-aramid fiber tow after oiling is extruded and use the described oil preparation uniformly penetrating that makes to attach on para-aramid fiber tow surface to inside the fibrous tissue of para-aramid fiber tow, obtain the para-aramid fiber oiled.
The method that oils of para-aramid fiber the most according to claim 1, it is characterised in that step A) described in sequentially pass through spinning, wash, neutralize and the fiber number of dried para-aramid fiber tow is 200-3000D.
The method that oils of para-aramid fiber the most according to claim 1, it is characterised in that step A) described in sequentially pass through spinning, wash, neutralize and the moisture content of dried para-aramid fiber tow is 7-15%.
The method that oils of para-aramid fiber the most according to claim 1, it is characterised in that step A) described in para-aramid fiber tow be 400-1000m/min to the speed that described oiling device is advanced.
The method that oils of para-aramid fiber the most according to claim 1, it is characterised in that step A) described in oil preparation heating heating-up temperature be 60-80 DEG C.
The method that oils of para-aramid fiber the most according to claim 1, it is characterised in that step B) described in oil after para-aramid fiber tow row go out described oiling device after enter speed 400-1000m/min of described roller extruder device.
7. according to the method that oils of the para-aramid fiber described in claim 1 or 6, it is characterized in that a working roll and a backing roll that described roller extruder device includes self being correspondingly arranged, described oil after para-aramid fiber tow by way of between working roll and backing roll.
The method that oils of para-aramid fiber the most according to claim 7, it is characterised in that described working roll is nonmetal roller, and described backing roll is metallic roll.
The method that oils of para-aramid fiber the most according to claim 8, it is characterised in that described nonmetal roller is rubber rollers.
The method that oils of para-aramid fiber the most according to claim 1, it is characterised in that step B) described in the 0.8-1.5% that oil content is para-aramid fiber weight of the para-aramid fiber oiled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610288897.1A CN105926203A (en) | 2016-05-04 | 2016-05-04 | Oiling method for para-aramid fibers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610288897.1A CN105926203A (en) | 2016-05-04 | 2016-05-04 | Oiling method for para-aramid fibers |
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| CN201610288897.1A Pending CN105926203A (en) | 2016-05-04 | 2016-05-04 | Oiling method for para-aramid fibers |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436095A (en) * | 2016-10-28 | 2017-02-22 | 贵州榜香郁苗绣服饰开发有限公司 | Oil applying and drying device for silk threads of textile machinery |
| CN107503055A (en) * | 2017-04-14 | 2017-12-22 | 威海拓展纤维有限公司 | The method that oils of carbon fiber spinning |
| CN108950934A (en) * | 2018-09-19 | 2018-12-07 | 徐州力志纤维素科技有限公司 | A kind of silk piece oiling device of synthetic fibers |
| CN109395983A (en) * | 2018-12-19 | 2019-03-01 | 福建蓝美金属制品有限公司 | Equipment for manufacturing steel fibers in rows |
| CN109811488A (en) * | 2019-03-13 | 2019-05-28 | 福建三达节能新材股份有限公司 | A kind of the experimental branch line device for soaking oil and application method of high efficiency high stability |
| CN112553899A (en) * | 2020-10-12 | 2021-03-26 | 蓝星（成都）新材料有限公司 | Oiling agent for para-aramid fiber and use method thereof |
| CN113136629A (en) * | 2021-04-14 | 2021-07-20 | 中芳特纤股份有限公司 | Preparation process of high-strength and high-elongation para-aramid fiber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519910Y (en) * | 2001-12-31 | 2002-11-06 | 中国石化上海石油化工股份有限公司 | Oiling/deoiling tester for filament |
| CN104213228A (en) * | 2014-08-19 | 2014-12-17 | 北京三联虹普新合纤技术服务股份有限公司 | Production process of heavy-denier lustrous high-strength nylon 6 full-drawn fiber |
| CN204211870U (en) * | 2014-09-29 | 2015-03-18 | 中鸿纳米纤维技术丹阳有限公司 | A kind of nanofiber efficiently oils equipment |
-
2016
- 2016-05-04 CN CN201610288897.1A patent/CN105926203A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519910Y (en) * | 2001-12-31 | 2002-11-06 | 中国石化上海石油化工股份有限公司 | Oiling/deoiling tester for filament |
| CN104213228A (en) * | 2014-08-19 | 2014-12-17 | 北京三联虹普新合纤技术服务股份有限公司 | Production process of heavy-denier lustrous high-strength nylon 6 full-drawn fiber |
| CN204211870U (en) * | 2014-09-29 | 2015-03-18 | 中鸿纳米纤维技术丹阳有限公司 | A kind of nanofiber efficiently oils equipment |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436095A (en) * | 2016-10-28 | 2017-02-22 | 贵州榜香郁苗绣服饰开发有限公司 | Oil applying and drying device for silk threads of textile machinery |
| CN107503055A (en) * | 2017-04-14 | 2017-12-22 | 威海拓展纤维有限公司 | The method that oils of carbon fiber spinning |
| CN108950934A (en) * | 2018-09-19 | 2018-12-07 | 徐州力志纤维素科技有限公司 | A kind of silk piece oiling device of synthetic fibers |
| CN109395983A (en) * | 2018-12-19 | 2019-03-01 | 福建蓝美金属制品有限公司 | Equipment for manufacturing steel fibers in rows |
| CN109811488A (en) * | 2019-03-13 | 2019-05-28 | 福建三达节能新材股份有限公司 | A kind of the experimental branch line device for soaking oil and application method of high efficiency high stability |
| CN109811488B (en) * | 2019-03-13 | 2021-07-27 | 龙岩东腾再生资源科技有限公司 | High-efficiency high-stability oil immersion device for chemical fiber production and use method |
| CN112553899A (en) * | 2020-10-12 | 2021-03-26 | 蓝星（成都）新材料有限公司 | Oiling agent for para-aramid fiber and use method thereof |
| CN113136629A (en) * | 2021-04-14 | 2021-07-20 | 中芳特纤股份有限公司 | Preparation process of high-strength and high-elongation para-aramid fiber |
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Application publication date: 20160907 |