CN106906526A - The preparation method of Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber - Google Patents
The preparation method of Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber Download PDFInfo
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- CN106906526A CN106906526A CN201710261282.4A CN201710261282A CN106906526A CN 106906526 A CN106906526 A CN 106906526A CN 201710261282 A CN201710261282 A CN 201710261282A CN 106906526 A CN106906526 A CN 106906526A
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- electrostatic
- polypropylene
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- rotating fields
- screw rod
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The preparation method of Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber of the present invention, belong to infant industry field of material technology, polypropylene chip is added in melting screw rod A as cortex, polypropylene electrostatic master batch is added in melting screw rod B as sandwich layer, cortex and sandwich layer are according to mass percent (30~70)：(30~70) are added in metering pump of spinning machine, and fibre bundle is obtained after finish groove oiling roller, three step drafting machines, one forming machine, crimping machine, two road drafting machine sizings are sequentially passed through after fiberizing；The fibre bundle for obtaining obtains Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber by fiber trimmer and cutting machine.The present invention does low-melting fiber using Compound spinning core-skin Rotating fields electrostatic fibre, during processing hot melt screen pack and Nonwovens, viscous rod will not be produced on carding machine because of static reason, and sticky net phenomenon is produced on lapping machine.
Description
Technical field
The invention belongs to infant industry field of material technology, more particularly to a kind of Compound spinning core-skin Rotating fields polypropylene electrostatic
The preparation method of chopped fiber.
Background technology
In filtering material industry, elementary, middle and high screen pack and filter, application amount are increasing.Either air is net
Change, or fluid purification, all it be unable to do without screen pack and filter.Conventional air filter material, what is leaned on is fibrous filter net
The specific surface area of numerous fiber trap and fiber is adsorbed and captures dust in air particle.And in the middle of modern science and technology, pass
System means are one side, and the technological means of science is using the electrostatic charge and electrostatic field coulomb of electrostatic fibre itself
Power, more efficiently adsorbs and captures the dust granules in air, and effect is better than conventional method.While electrostatic fibrous filter web,
The various harmful bacterias and virus in air can also be effectively killed, with the effect for suppressing bacterial reproduction in air.So, mistake
Following development of filter materials industry, be with electrostatic fibrous filter web as material of main part, and this is a kind of inexorable trend.Therefore, tradition
Hot melt screen pack and filter gradually will be replaced by electrostatic fibrous filter web and filter.
In today of automobile industry fast development, automobile engine oil filtration core, gasoline filtration core, air cleaner, engine
Filter application amount is growing day by day.These filters and filtration core all be unable to do without Nonwovens, however, the short fibre of novel electrostatic
Dimension Nonwovens, filter effect will be far better than traditional Nonwovens filter medium.It is total from filtering material industry
Development trend sees that the short-fibre hot-rolled nonwoven fabric filter medium market future development space of electrostatic is very big.
But currently used for the apparatus and method of electrostatic fibre net are prepared, due to static reason, it is impossible to off-grid, it may appear that very
Serious fleece sticky net phenomenon, it is raw in order to overcome the tight sticky net phenomenon of electrostatic fibre, it is necessary to add the equipment for eliminating electrostatic
Producing to be needed badly in the middle of high cost, therefore prior art wants a kind of new technical scheme to solve this problem.
The content of the invention
The technical problems to be solved by the invention are：A kind of Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber is provided
Preparation method, the present invention is processed into electrostatic chopped fiber using Compound spinning core-skin Rotating fields principle, and it is low that cortex is that polypropylene can be played
The cementation of melting-point fibers, and sandwich layer is electrostatic chopped fiber, it is fine to do low melting point using Compound spinning core-skin Rotating fields electrostatic fibre
Dimension, during processing hot melt screen pack and Nonwovens, will not produce viscous rod, lapping machine because of static reason on carding machine
Upper generation sticky net phenomenon.
To achieve these goals, the present invention proposes the preparation side of Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber
Method, it is characterized in that：Specifically include following steps,
Step one, polypropylene chip is added in melting screw rod A as cortex, polypropylene electrostatic master batch is added into melting spiral shell
As sandwich layer in bar B, cortex and sandwich layer are according to mass percent (30~70)：(30~70) are added in metering pump of spinning machine,
After finish groove oiling roller, three step drafting machines, one forming machine, crimping machine, two road drafting machine sizings are sequentially passed through after fiberizing
Obtain fibre bundle；
Polypropylene chip melt index is 72g/10min in adding melting screw rod A, adds the polypropylene in melting screw rod B
Electrostatic master batch melt index is 32g/10min；
Step 2, the fibre bundle for obtaining step one obtain Compound spinning core-skin layer by fiber trimmer and cutting machine
Structure polypropylene electrostatic chopped fiber,
Wherein fiber trimmer sprinkler pressure is 3.0kg/cm2~3.8kg/cm2。
Preferably, the melting screw rod A melt temperatures are 160 DEG C~230 DEG C.
Preferably, the melting screw rod B melt temperatures are 230 DEG C~286 DEG C.
By above-mentioned design, the present invention can bring following beneficial effect：The present invention is using Compound spinning core-skin layer knot
Structure principle is processed into electrostatic chopped fiber, and cortex is the cementation that polypropylene can play low-melting fiber, and sandwich layer is short electrostatic
Fiber, low-melting fiber is done using Compound spinning core-skin Rotating fields electrostatic fibre, during processing hot melt screen pack and Nonwovens,
Viscous rod will not be produced on carding machine because of static reason, sticky net phenomenon is produced on lapping machine.Common hot melt screen pack production sets
Standby, Nonwovens production equipment can directly use Compound spinning core-skin Rotating fields electrostatic chopped fiber.Compound spinning core-skin layer knot
In reflow process, the polypropylene of cortex is heated fusing to structure electrostatic chopped fiber, plays viscose fibre effect, and main fibre is glued
Form net, form hot melt electrostatic fibrous filter web and the short-fibre hot-rolled non-weaving cloth of electrostatic.The short fibre of Compound spinning electrostatic of the present invention
Dimension, is 10 in unfused preceding fiber ratio resistance value2Ω .cm~103Ω .cm, after cortex polypropylene is heated, core fibers
Ratio resistance value is 108Ω .cm~1010Ω.cm.Thermal bonding fibre is done using this Compound spinning electrostatic chopped fiber, resulting is
Electrostatic fibre heats screen pack and electrostatic fibre Nonwovens, and electrostatic fibre hot melt screen pack is most preferable air cleaner
Filtering material；Electrostatic fibre Nonwovens are the optimal filter mediums of filtration core.However, electrostatic fibre hot melt screen pack
It is that the development of following novel air scavenging material and liquid filtration material becomes with electrostatic fibre Nonwovens joint product
Gesture.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated：
Fig. 1 is the schematic flow sheet of the preparation method of Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber of the present invention.
Specific embodiment
In order to further appreciate that the present invention, the preferred embodiments of the invention are described with reference to embodiment, but
It is it should be appreciated that these descriptions are simply to further illustrate the features and advantages of the present invention rather than to patent requirements of the present invention
Limitation.
Refer to Fig. 1, a kind of preparation method of Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber that the present invention is provided,
Including as follows：
Step one, melt index is added in melting screw rod A as cortex, melting for the polypropylene chip of 72g/10min
Each area's temperature of screw rod A is：1 160 DEG C of area~170 DEG C, 2 170 DEG C of areas~180 DEG C, 3 180 DEG C of areas~190 DEG C, 4 areas 182 DEG C~200
DEG C, 5 185 DEG C of areas~230 DEG C, 6 185 DEG C of areas~230 DEG C, 7 185 DEG C of areas~230 DEG C；The melt temperature of melting screw rod A is 160 DEG C
~230 DEG C；Revolution is 38 revs/min~52 revs/min；Electric current is 66 amperes~120 amperes.
Melt index is melted in screw rod B as sandwich layer for the polypropylene electrostatic master batch of 32g/10min is added, screw rod is melted
Each area's temperature of B is：1 230 DEG C of area~240 DEG C；2 240 DEG C of areas~250 DEG C；3 250 DEG C of areas~255 DEG C；4 areas 255 DEG C~265
℃；5 265 DEG C of areas~286 DEG C；6 265 DEG C of areas~286 DEG C；7 265 DEG C of areas~286 DEG C；The melt temperature of melting screw rod B is 230 DEG C
~286 DEG C；Revolution is 32 revs/min~45 revs/min；Electric current is 88 amperes~140 amperes.
Then according to mass percent (30~70)：(30~70), cortex and sandwich layer are added in metering pump of spinning machine,
The processing parameter setting of the metering pump of spinning machine is,
A1:8.6 revs/min~9.6 revs/min；A2：8.6 revs/min~9.6 revs/min；
A3：8.6 revs/min~9.6 revs/min；A4：8.6 revs/min~9.6 revs/min；
B1：8.6 revs/min~9.6 revs/min；B2：8.6 revs/min~9.6 revs/min；
B3：8.6 revs/min~9.6 revs/min；B4：8.6 revs/min~9.6 revs/min；Wherein A1, A2, A3, A4 are the metering of A lines
Pump code name；B1, B2, B3, B4 are B line measuring pump code names.
By after the fiberizing of metering pump of spinning machine, being oiled by finish groove, the purpose for oiling is to ensure whole silk
Shu Pingshun does not drift about, and reduces friction between tow in addition, is easy to follow-up drawing-off to process.
Tow with finish, by three step multi-roll drafting machines, gradually attenuating draws and attenuates, and reaches process stipulation fineness requirement.
Fibre bundle after stretched, first passes around one forming machine, its purpose is to eliminate inside fibre bundle
Internal stress, specific method using steam-heated method shape.
Fibre bundle after shaping together, into crimping machine.Fibre bundle is set to form certain according to technological requirement
Crispation number (18~20/25mm) and crimpness (20%~60%), to meet deep processing the need for.
Fibre bundle with certain crispation number and crimpness, by two road forming machines.Purpose is in order that after curling
Fibre bundle, crispation number and crimpness stabilization are, it is necessary to by the heat-shaping of two road forming machines.
Enter fiber trimmer by the fibre bundle after sizing, fibre bundle at random is obtained by the effect of air-flow
Regular, the fibre bundle after shaping cuts into the polypropylene electrostatic chopped fiber of specific length, the fibre being finally molded by cutting machine
Dimension group enters baling press packing, that is, obtain Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber.
The revolution of above-mentioned finish groove oiling roller is 7.0 revs/min~7.4 revs/min；The temperature of drawing-off bath is 108 DEG C~120
℃；The temperature of the first drafting machine is 92 DEG C~100 DEG C, and revolution is 21 revs/min~25 revs/min；The temperature of the second drafting machine is 92
DEG C~100 DEG C, revolution is 55 revs/min~65 revs/min；The temperature of the 3rd drafting machine is 108 DEG C~116 DEG C, and revolution is 75 revs/min
~85 revs/min.
The temperature of above-mentioned first forming machine is 118 DEG C~122 DEG C；Crimping machine parameter is：Case pressure is 1.9kg/cm2~
2.1kg/cm2, crispation number is 18~20/25mm, and crimpness is 20%~60%, and fibre bundle tension force is 70N~80N.Two
Road thermal finalization heating is divided into two sections：One section of heating-up temperature is 128 DEG C~136 DEG C, chain row's 0.3 rev/min of revolution~0.6 rev/min, two
Section heating-up temperature is 140 DEG C~149 DEG C, and chain row's revolution is 0.6 rev/min~1.2 revs/min.Fiber trimmer air-flow sprinkler pressure
It is 3.0kg/cm2~3.8kg/cm2。
The revolution of above-mentioned cutting machine is 43 revs/min~47 revs/min；The revolution of collator be 1000 revs/min~1200 turns/
Point；The revolution of baling press is 1800 revs/min~2000 revs/min.
Specific technological parameter is as shown in table 1.
Table 1
Test result indicate that：The Compound spinning core-skin Rotating fields obtained by specific process parameter in above step and table 1 are gathered
Propylene electrostatic chopped fiber, fineness 1.67dtex~2.22dtex；Length 44mm~65mm；Fracture strength be 3.8cN/dtex~
4.2cN/dtex；Surface specific resistance is 102Ω .cm~103Ω.cm.Fiber table in fleece or non-weaving cloth after hot melt or hot rolling
Area specific resistance is 108Ω .cm~1010Ω .cm, carried charge is 1K~20K；Surface density of charge is 200cn/cm2~300cn/cm2。
The explanation of above example is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that right
For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.To disclosed implementation
The described above of example, enables professional and technical personnel in the field to realize or uses the present invention.Various modifications to these embodiments
Will be apparent for those skilled in the art, generic principles defined herein can not depart from this
In the case of the spirit or scope of invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to illustrated herein
These embodiments, and be to fit to the most wide scope consistent with principles disclosed herein and features of novelty.
Claims (3)
1. the preparation method of Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber, it is characterized in that：Specifically include following steps,
Step one, polypropylene chip is added in melting screw rod A as cortex, polypropylene electrostatic master batch is added into melting screw rod B
It is middle as sandwich layer, cortex and sandwich layer are according to mass percent (30~70)：(30~70) are added in metering pump of spinning machine,
Finish groove oiling roller, three step drafting machines, one forming machine, crimping machine, two road drafting machines are sequentially passed through after fiberizing to determine
Fibre bundle is obtained after type；
Polypropylene chip melt index is 72g/10min in adding melting screw rod A, adds the polypropylene electrostatic in melting screw rod B
Master batch melt index is 32g/10min；
Step 2, the fibre bundle for obtaining step one obtain Compound spinning core-skin Rotating fields by fiber trimmer and cutting machine
Polypropylene electrostatic chopped fiber,
Wherein fiber trimmer sprinkler pressure is 3.0kg/cm2~3.8kg/cm2。
2. the preparation method of Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber according to claim 1, its feature exists
In：The melting screw rod A melt temperatures are 160 DEG C~230 DEG C.
3. the preparation method of Compound spinning core-skin Rotating fields polypropylene electrostatic chopped fiber according to claim 1, its feature exists
In：The melting screw rod B melt temperatures are 230 DEG C~286 DEG C.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107385558A (en) * | 2017-08-10 | 2017-11-24 | 吉林省华纺静电材料科技有限公司 | A kind of multi-functional polypropene staple and its production technology |
| CN107604470A (en) * | 2017-09-26 | 2018-01-19 | 吉林省华纺静电材料科技有限公司 | Intelligent polypropylene electrostatic chopped fiber and its production technology |
| CN112239920A (en) * | 2020-10-12 | 2021-01-19 | 上海邀加科技有限公司 | Preparation method of functional melt-blown material |
| WO2021203494A1 (en) * | 2020-04-09 | 2021-10-14 | 立赫产业有限公司 | Multifunctional electrostatic electret filter and preparation method therefor |
| CN113832637A (en) * | 2021-10-18 | 2021-12-24 | 宁波维科丝网股份有限公司 | Heat setting process of mesh cloth for air conditioner filtration |
| CN114953661A (en) * | 2022-08-01 | 2022-08-30 | 吉林省新维材料科技有限公司 | Mildew-proof flame-retardant basalt fiber composite material for automobile ceiling and manufacturing method thereof |
| CN114990717A (en) * | 2022-08-01 | 2022-09-02 | 吉林省新维材料科技有限公司 | PP fiber with low harmful substance volatilization and processing and forming method thereof |
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| CN113832637A (en) * | 2021-10-18 | 2021-12-24 | 宁波维科丝网股份有限公司 | Heat setting process of mesh cloth for air conditioner filtration |
| CN114953661A (en) * | 2022-08-01 | 2022-08-30 | 吉林省新维材料科技有限公司 | Mildew-proof flame-retardant basalt fiber composite material for automobile ceiling and manufacturing method thereof |
| CN114990717A (en) * | 2022-08-01 | 2022-09-02 | 吉林省新维材料科技有限公司 | PP fiber with low harmful substance volatilization and processing and forming method thereof |
| CN114990717B (en) * | 2022-08-01 | 2022-10-25 | 吉林省新维材料科技有限公司 | PP fiber with low harmful substance volatilization and processing and forming method thereof |
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