CN110499586A - A kind of electrostatic cotton material and its preparation method and application - Google Patents

A kind of electrostatic cotton material and its preparation method and application Download PDF

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Publication number
CN110499586A
CN110499586A CN201910753236.5A CN201910753236A CN110499586A CN 110499586 A CN110499586 A CN 110499586A CN 201910753236 A CN201910753236 A CN 201910753236A CN 110499586 A CN110499586 A CN 110499586A
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China
Prior art keywords
component
electrostatic cotton
variety
melt
single screw
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CN201910753236.5A
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Chinese (zh)
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CN110499586B (en
Inventor
朱德洪
陈立东
陈连忠
徐克勤
陈致帆
柏国清
濮颖军
高丰和
吴建军
陈心
沈宏宇
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Shanghai Jingfa Industry Co ltd
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Shanghai Fine Hair Industrial Ltd By Share Ltd
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Priority to CN201910753236.5A priority Critical patent/CN110499586B/en
Publication of CN110499586A publication Critical patent/CN110499586A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • D01D5/088Cooling filaments, threads or the like, leaving the spinnerettes
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/12Stretch-spinning methods
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/07Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D04H3/147Composite yarns or filaments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0216Bicomponent or multicomponent fibres
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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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)
  • Filtering Materials (AREA)
  • Electrostatic Separation (AREA)

Abstract

A kind of electrostatic cotton material and its preparation method and application, the electrostatic cotton material is made of two-component bicomponent filament yarn, and two-component is in parallel construction in bicomponent filament yarn, wherein the melt index of component A material is 34g/10min~42g/10min;The inherent viscosity of B component material is 0.60dl/g~0.69dl/g, and oxygen index (OI) is more than 28.0%.Its production process completely environmental protection, use when hot environment filter efficiency decay it is small, possess light long filament aesthetic feeling cloth style, low smell and have flame retardant effect, with the High dust holding material for building fresh air system or Vehicular air filtration application field.

Description

A kind of electrostatic cotton material and its preparation method and application
Technical field
The present invention relates to a kind of nonwoven cloth materials, more particularly to a kind of electrostatic cotton material.
Background technique
With the yearning pursuit that country promotes the depth of air pollution treatment and resident live to higher quality, household and The terminal applies such as passenger car field is more paid attention to by air quality maintenance.Building fresh air system is the necessarily choosing of building technology development It selects, building energy conservation be unable to do without fresh air system, and residents ' health be unable to do without fresh air system, and irregular fresh air market is shuffled in depth Bigger development will be welcome afterwards.The market maintenance of riding vehicle rises year by year, is driven by its consumption, automobile air conditioner filter element city Field demand is in high-end trim always.The technology of the thriving demand of fresh air and automobile air filter, filter material needed for expediting the emergence of related filter core is fast Speed updates.Existing fresh air or automobile-used air filter filter material are mostly by skeletal support material adapted column/granular activated carbon and melt spraying non-woven fabrics Or short fine electrostatic cotton is combined;For the service life for improving filter core, the dust containing capacity for improving filter material is become as most effective solution Approach, more fluffy electrostatic cotton are more favored compared with melt spraying non-woven fabrics.
Though the short fine electrostatic cotton in aforementioned Compound filtering material has highly developed complete manufacturing technology and high market is recognized Degree of knowing,
But there are following long-term insurmountable defect and pain spots:
1, short fine electrostatic cotton is mostly formed by polyester staple fibers, the blended rear pinprick reinforcement of the short fibre of electrostatic function, cloth cover needle trace, hole Obviously, the filter efficiency of electrostatic cotton is dragged down;
2, the static electrification attribute of short fine electrostatic cotton is mainly from the short fibre of electrostatic function, and manufacturing process is tediously long and hot environment Electrostatic attenuation is obvious, does not adapt to the high temperature process operating condition for the processes such as the filter material in rear road is compound and filter material is pleated;
3, short fine electrostatic cotton fiber oriented is mixed and disorderly, and more secretly, needle thorn consolidation easily its appearance luster occurs after molding Unstable appearance, the Fabric Style aesthetic degrees such as fluffing are poor;
If short fibre electrostatic cotton meets the flame-retardancy requirements of passenger car compartment interior trim material, the fire-retardant of tanginess must be coated or impregnated with Function additive, followed by the technique of tentering drying, processing procedure is more difficult and easy to change, durability is poor, more crucial Be the production technology in process tanginess, need to match special waste gas reclamation treatment system, after product is made It is not able to satisfy desired value within 3 grades in the smell test VDA270 standard of automobile interior decoration material.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of electrostatic cotton material and its preparations Method and purposes, production process completely environmental protection, use when hot environment filter efficiency decay it is small, possess light long filament aesthetic feeling cloth Face style, low smell and have flame retardant effect, with the Gao Rong for building fresh air system or Vehicular air filtration application field Dirt material, for solving the problems of the prior art.
In order to achieve the above objects and other related objects, the present invention obtains by the following technical programs.
The present invention provides a kind of electrostatic cotton material, and the electrostatic cotton material is made of two-component bicomponent filament yarn, and two-component exists It is in parallel construction in bicomponent filament yarn, wherein the melt index of component A material is 34g/10min~42g/10min;B component material Inherent viscosity be 0.60dl/g~0.69dl/g, and oxygen index (OI) is more than 28.0%.
Melt index in the application uses GBT3682, tests and obtains under 230 DEG C and 2.16kg.
Inherent viscosity in the application uses GBT14190, tests and obtains at 25 DEG C.
Preferably, it is counted on the basis of the gross mass of two-component bicomponent filament yarn, the component A accounts for 40wt%~60wt%.
Preferably, the fusing point of component A material is 158 DEG C~168 DEG C.
Preferably, the fusing point of B component material is 235 DEG C~255 DEG C.
It is highly preferred that the component A material is selected from one of equal polyolefin or a variety of.It is highly preferred that the equal polyene Hydrocarbon is using homopolypropylene.
It is highly preferred that counting on the basis of the gross mass of component A material, 1wt%~3wt% electret is contained in component A material Master batch.
It is highly preferred that be counted on the basis of the gross mass of electret master batch in component A material, in electret master batch containing 5~ 10wt% nano diatomite and 8~15wt% nano talc, remaining is homopolypropylene.
It is highly preferred that the B component material is selected from one of flame-retardant modified polyester or a variety of.It is highly preferred that described poly- Ester is PET.
It is highly preferred that counting on the basis of the gross mass of B component material, 20~50wt% fire retardant is contained in B component material.
It is highly preferred that the fire retardant is selected from one of phosphorus flame retardant or a variety of.The i.e. described B component material is that have phosphorus The polyester of flame retardant blending and modifying.
The invention also discloses the preparation methods of electrostatic cotton material as described above, include the following steps:
1) single screw extrusion machine will be added after the stirring of component A raw material, another single screw extrusion machine is added in B component raw material Enter composite spining module after melting extrusion and forms continuous parallel construction bicomponent filament yarn fiber;
2) through side-blown air cooling, and the networking after the positive pressure drawing-off of drawing-off wind;
3) the nonwoven cloth cover after networking is melted into cylinder hot wind bellows and is consolidated;
4) non-woven fabrics consolidated through cylinder hot wind crosses Corona charge machine electrion electret.
Preferably, the spice of component A raw material is before entering single screw extrusion machine melting without being dried.
Preferably, B component raw material are dried before entering single screw extrusion machine melting, make its moisture content not More than 800ppm.It is highly preferred that the temperature being dried is no more than 165 DEG C.
Preferably, each area's temperature for the single screw extrusion machine that the component A is passed through is successively are as follows: 190~200 DEG C, 200~ 210 DEG C, 225~235 DEG C, 225~235 DEG C, 225~235 DEG C, 225~235 DEG C, 225~235 DEG C, 220~230 DEG C.
Preferably, through component A raw material, the component A raw material forms melt after single screw extrusion machine, and melt is by increasing Enter filter after press pump to filter, subsequently into metering pump-metered, quantitative melt enters composite spining module.It is highly preferred that Pressure before filter filtering is 8~15MPa, and filtered pressure is 5~8MPa.
Preferably, B component raw material pass through single screw extrusion machine each area's temperature be followed successively by 275~280 DEG C, 280~ 283 DEG C, 283~287 DEG C, 283~287 DEG C, 283~287 DEG C, 280~288 DEG C.
Preferably, the B component raw material forms melt after single screw extrusion machine, and melt enters filter filtering, then Into metering pump-metered, quantitative melt enters composite spining module.It is highly preferred that filter filtering before pressure be 8~ 15MPa, filtered pressure are 5~8MPa.
Preferably, in step 2), the temperature of cross air blasting is 9~20 DEG C.
Preferably, in step 2), the pressure of drawing-off wind is 0.10~0.24MPa.
Preferably, in step 2), drawing-off height is 0.7~1.6m.
Preferably, in step 3), hot wind wind-warm syndrome is 155~175 DEG C.
The component A of the bicomponent filament yarn of parallel construction melts after hot wind is handled in step 3), mutually bonding consolidation.
Preferably, in step 4), 35~50kv of Corona charge voltage.
Preferably, in step 4), 6~12cm of Corona charge distance.
It is handled in step 4) through Corona charge, nano silicone diatomaceous earth and nanoscale talcum powder are resident charge, form electrostatic and inhale Attached Coulomb force.
The invention also discloses electrostatic cotton material as described above as particulate pollutant appearance dirt material in air mistake The purposes in filter field.
Technical solution of the present invention and prior art ratio, have the advantages that
1. the static electrification attribute of product of the present invention is by inorganic electret material --- nano silicone diatomaceous earth and nanoscale talcum Powder provides, and charge retention is strong after Corona charge, and electrostatic attenuation is few under hot environment, is suitable for that rear road is compound, pleating is contour Warm operating condition;
2. product of the present invention by the high molecular polymer and non-toxic inorganic object of environmental protection by being produced completely, material itself is not Containing any noxious material will not be discharged;
3. product of the present invention easily springs back after rear road pleating processing, applies in automobile-used sky because of the self attributes of filament fiber Dismounting filter core will not generate biggish bad deformation after adjusting on filter core;
4. product of the present invention is that the carrys itself illuminating device filament fiber one-step method curled makes at cloth without needle thorn consolidation, no needle mark The bad orders such as fluffing are less prone to during being consolidated, be made with hot blast adhesion, cloth style is beautiful, appearance is preferable;
5. the fire-retardant attribute of product of the present invention is provided by the modified polymer material of environmental protection, production, use, recovery processing Product lifecycle will not generate poisonous and harmful substances, environmental requirement is fully met, in automobile interior decoration material Odor Evaluations It is substantially better than similar short fine product.
6. product of the present invention is used as automobile-used or VMC filter core High dust holding material, have weak smell, high Air permenbility, The attributes such as height filters the low filtration resistance of effect, fire-retardant, high temperature filter effect decaying is small, and double groups that the material needleless pierces puneture, possesses carrys itself illuminating device The compound continuous filaments fabric aesthetic appeal of part.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Before further describing the specific embodiments of the present invention, it should be appreciated that protection scope of the present invention is not limited to down State specific specific embodiment;It is also understood that term used in the embodiment of the present invention is specific specific in order to describe Embodiment, rather than limiting the scope of protection of the present invention.The test method of actual conditions is not specified in the following example, Usually according to normal condition, or according to condition proposed by each manufacturer.
When embodiment provides numberical range, it should be appreciated that except non-present invention is otherwise noted, two ends of each numberical range Any one numerical value can be selected between point and two endpoints.Unless otherwise defined, the present invention used in all technologies and Scientific term is identical as the normally understood meaning of those skilled in the art of the present technique.Except specific method, equipment used in embodiment, Outside material, grasp and record of the invention according to those skilled in the art to the prior art can also be used and this Any method, equipment and the material of the similar or equivalent prior art of method described in inventive embodiments, equipment, material come real The existing present invention.
Embodiment 1
The production of the embodiment of the present invention mainly comprises the steps of:
Component A polymer be homopolypropylene, 158~168 DEG C of fusing point;
B component polymer is the polyester slice through phosphorous flame-retardant modification, and 235~255 DEG C of fusing point, oxygen index (OI) is greater than 28%.
Side-by-side bicomponent blend proportion A:B=45:55 (mass ratio)
Above two polymer is respectively polyolefin and polyester polymer, the former is straight through single screw extrusion machine without baking material Row melting is tapped into push, and the latter then needs to carry out melting through single screw extrusion machine after the baking material of 155 DEG C, 9 hours is handled to push away It squeezes.
Component A raw material (master batch of electret containing 1.5wt%) are melted by single screw extrusion machine, warm area setting are as follows: 195 DEG C, 205 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 225 DEG C, 225 DEG C of melt temperature, screw rod line temperature 230 ℃;Component A melt is filtered, and pressure 12.5MPa before filtering, pressure 6.5MPa after filter, then melt enters metering pump meter Amount, metering pump speed 20rpm, quantitative melt enter composite spining module.
B component polymer is (fire-retardant) to be melted by single screw extrusion machine, warm area setting are as follows: 280 DEG C, 282 DEG C, 285 DEG C, 285 DEG C, 285 DEG C, 282 DEG C, 284 DEG C of melt temperature, 285 DEG C of screw rod line temperature, B component melt is through filter mistake Filter, pressure 11.5MPa, pressure 6.5MPa after filter before filtering, then melt enters metering pump-metered, and metering pump speed 15rpm is quantitative Melt enter composite spining module.
The temperature for the closed case that melt distributes in composite spining module is maintained at 285 DEG C;Spinneret orifice squeezes out the two of long filament Side is to 11 DEG C of the cooling wind temperature blown, relative humidity 60%, air quantity 1050rpm;Air drawing wind pressure is 0.14MPa, drawing-off is high Spend 1.2m;At net spee 27.0m/min;Networking owner suction air amount 1000rpm, auxiliary suction air quantity 500rpm;Without precompressed Rolling pressure;Cylinder hot wind dries the hot wind setting of room are as follows: 166 DEG C of air blast frequency 40Hz, wind-warm syndrome.After cylinder blast heater cloth outputting directly Into high-voltage corona electret machine, electret voltage 50kv, electret distance 10cm;The rolling machine winding of non-woven fabrics after Corona charge In rolls, yardage roll is cut through cutting machine again, and the maximum breadth of cutting is 1.6m, and product grammes per square metre is 85g/m2
Embodiment 2
The production of the embodiment of the present invention mainly comprises the steps of:
Component A polymer be homopolypropylene, 158~168 DEG C of fusing point;
B component polymer is the polyester slice through phosphorous flame-retardant modification, and 235~255 DEG C of fusing point, oxygen index (OI) is greater than 28%.
Side-by-side bicomponent blend proportion A:B=41:59 (mass ratio)
Above two polymer is respectively polyolefin and polyester polymer, the former is straight through single screw extrusion machine without baking material Row melting is tapped into push, and the latter then needs to carry out melting through single screw extrusion machine after the baking material of 155 DEG C, 9 hours is handled to push away It squeezes.
Component A raw material (containing 1.5% electret master batch) are melted by single screw extrusion machine, warm area setting are as follows: 195 DEG C, 205 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 225 DEG C, 225 DEG C of melt temperature, 230 DEG C of screw rod line temperature; Component A melt is filtered through filter, and pressure 11.5MPa before filtering, pressure 6.5MPa after filter, then melt enters metering pump-metered, meter Revolution speed 18rpm is measured, quantitative melt enters composite spining module.
B component polymer is (fire-retardant) to be melted by single screw extrusion machine, warm area setting are as follows: 280 DEG C, 282 DEG C, 285 DEG C, 285 DEG C, 285 DEG C, 282 DEG C, 284 DEG C of melt temperature, 285 DEG C of screw rod line temperature, B component melt is through filter mistake Filter, pressure 12.0MPa, pressure 6.5MPa after filter before filtering, then melt enters metering pump-metered, and metering pump speed 16rpm is quantitative Melt enter composite spining module.
The temperature for the closed case that melt distributes in composite spining module is maintained at 285 DEG C;Spinneret orifice squeezes out the two of long filament Side is to 11 DEG C of the cooling wind temperature blown, relative humidity 60%, air quantity 1050rpm;Air drawing wind pressure is 0.14MPa, drawing-off is high Spend 1.1m;At net spee 26.8m/min;Networking owner suction air amount 1000rpm, auxiliary suction air quantity 500rpm;Without precompressed Rolling pressure;Cylinder hot wind dries the hot wind setting of room are as follows: 166 DEG C of air blast frequency 40Hz, wind-warm syndrome.After cylinder blast heater cloth outputting directly Into high-voltage corona electret machine, electret voltage 50kv, electret distance 10cm;The rolling machine winding of non-woven fabrics after Corona charge In rolls, yardage roll is cut through cutting machine again, and the maximum breadth of cutting is 1.6m, and product grammes per square metre is 85g/m2
Embodiment 3
The production of the embodiment of the present invention mainly comprises the steps of:
Component A polymer be homopolypropylene, 158~168 DEG C of fusing point;
B component polymer is the polyester slice through phosphorous flame-retardant modification, and 235~255 DEG C of fusing point, oxygen index (OI) is greater than 28%.
Side-by-side bicomponent blend proportion A:B=48:52 (mass ratio)
Above two polymer is respectively polyolefin and polyester polymer, the former is straight through single screw extrusion machine without baking material Row melting is tapped into push, and the latter then needs to carry out melting through single screw extrusion machine after the baking material of 155 DEG C, 9 hours is handled to push away It squeezes.
Component A raw material (containing 1.5% electret master batch) are melted by single screw extrusion machine, warm area setting are as follows: 195 DEG C, 205 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 225 DEG C, 225 DEG C of melt temperature, 230 DEG C of screw rod line temperature; Component A melt is filtered through filter, and pressure 13.0MPa before filtering, pressure 6.5MPa after filter, then melt enters metering pump-metered, meter Revolution speed 21rpm is measured, quantitative melt enters composite spining module.
B component polymer is (fire-retardant) to be melted by single screw extrusion machine, warm area setting are as follows: 280 DEG C, 282 DEG C, 285 DEG C, 285 DEG C, 285 DEG C, 282 DEG C, 284 DEG C of melt temperature, 285 DEG C of screw rod line temperature, B component melt is through filter mistake Filter, pressure 11.0MPa, pressure 6.5MPa after filter before filtering, then melt enters metering pump-metered, and metering pump speed 14rpm is quantitative Melt enter composite spining module.
The temperature for the closed case that melt distributes in composite spining module is maintained at 285 DEG C;Spinneret orifice squeezes out the two of long filament Side is to 10 DEG C of the cooling wind temperature blown, relative humidity 60%, air quantity 1050rpm;Air drawing wind pressure is 0.14MPa, drawing-off is high Spend 1.4m;At net spee 26.6m/min;Networking owner suction air amount 1000rpm, auxiliary suction air quantity 500rpm;Without precompressed Rolling pressure;Cylinder hot wind dries the hot wind setting of room are as follows: 166 DEG C of air blast frequency 40Hz, wind-warm syndrome.After cylinder blast heater cloth outputting directly Into high-voltage corona electret machine, electret voltage 50kv, electret distance 10cm;The rolling machine winding of non-woven fabrics after Corona charge In rolls, yardage roll is cut through cutting machine again, and the maximum breadth of cutting is 1.6m, and product grammes per square metre is 85g/m2
Embodiment 4
The production of the embodiment of the present invention mainly comprises the steps of:
Component A polymer be homopolypropylene, 158~168 DEG C of fusing point;
B component polymer is the polyester slice through phosphorous flame-retardant modification, and 235~255 DEG C of fusing point, oxygen index (OI) is greater than 28%.
Side-by-side bicomponent blend proportion A:B=48:52 (mass ratio)
Above two polymer is respectively polyolefin and polyester polymer, the former is straight through single screw extrusion machine without baking material Row melting is tapped into push, and the latter then needs to carry out melting through single screw extrusion machine after the baking material of 155 DEG C, 9 hours is handled to push away It squeezes.
Component A raw material (containing 1.5% electret master batch) are melted by single screw extrusion machine, warm area setting are as follows: 195 DEG C, 205 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 225 DEG C, 225 DEG C of melt temperature, 230 DEG C of screw rod line temperature; Component A melt is filtered through filter, and pressure 13.0MPa before filtering, pressure 6.5MPa after filter, then melt enters metering pump-metered, meter Revolution speed 21rpm is measured, quantitative melt enters composite spining module.
B component polymer is (fire-retardant) to be melted by single screw extrusion machine, warm area setting are as follows: 280 DEG C, 282 DEG C, 285 DEG C, 285 DEG C, 285 DEG C, 282 DEG C, 284 DEG C of melt temperature, 285 DEG C of screw rod line temperature, B component melt is through filter mistake Filter, pressure 11.0MPa, pressure 6.5MPa after filter before filtering, then melt enters metering pump-metered, and metering pump speed 14rpm is quantitative Melt enter composite spining module.
The temperature for the closed case that melt distributes in composite spining module is maintained at 285 DEG C;Spinneret orifice squeezes out the two of long filament Side is to 10 DEG C of the cooling wind temperature blown, relative humidity 60%, air quantity 1050rpm;Air drawing wind pressure is 0.14MPa, drawing-off is high Spend 1.4m;At net spee 34.8m/min;Networking owner suction air amount 1000rpm, auxiliary suction air quantity 500rpm;Without precompressed Rolling pressure;Cylinder hot wind dries the hot wind setting of room are as follows: 166 DEG C of air blast frequency 40Hz, wind-warm syndrome.After cylinder blast heater cloth outputting directly Into high-voltage corona electret machine, electret voltage 50kv, electret distance 10cm;The rolling machine winding of non-woven fabrics after Corona charge In rolls, yardage roll is cut through cutting machine again, and the maximum breadth of cutting is 1.6m, and product grammes per square metre is 65g/m2
Embodiment 5
The production of the embodiment of the present invention mainly comprises the steps of:
Component A polymer be homopolypropylene, 158~168 DEG C of fusing point;
B component polymer is the polyester slice through phosphorous flame-retardant modification, and 235~255 DEG C of fusing point, oxygen index (OI) is greater than 28%.
Side-by-side bicomponent blend proportion A:B=48:52 (mass ratio)
Above two polymer is respectively polyolefin and polyester polymer, the former is straight through single screw extrusion machine without baking material Row melting is tapped into push, and the latter then needs to carry out melting through single screw extrusion machine after the baking material of 155 DEG C, 9 hours is handled to push away It squeezes.
Component A raw material (containing 1.5% electret master batch) are melted by single screw extrusion machine, warm area setting are as follows: 195 DEG C, 205 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 225 DEG C, 225 DEG C of melt temperature, 230 DEG C of screw rod line temperature; Component A melt is filtered through filter, and pressure 13.0MPa before filtering, pressure 6.5MPa after filter, then melt enters metering pump-metered, meter Revolution speed 21rpm is measured, quantitative melt enters composite spining module.
B component polymer is (fire-retardant) to be melted by single screw extrusion machine, warm area setting are as follows: 280 DEG C, 282 DEG C, 285 DEG C, 285 DEG C, 285 DEG C, 282 DEG C, 284 DEG C of melt temperature, 285 DEG C of screw rod line temperature, B component melt is through filter mistake Filter, pressure 11.0MPa, pressure 6.5MPa after filter before filtering, then melt enters metering pump-metered, and metering pump speed 14rpm is quantitative Melt enter composite spining module.
The temperature for the closed case that melt distributes in composite spining module is maintained at 285 DEG C;Spinneret orifice squeezes out the two of long filament Side is to 10 DEG C of the cooling wind temperature blown, relative humidity 60%, air quantity 1050rpm;Air drawing wind pressure is 0.20MPa, drawing-off is high Spend 1.4m;At net spee 26.6m/min;Networking owner suction air amount 1000rpm, auxiliary suction air quantity 500rpm;Without precompressed Rolling pressure;Cylinder hot wind dries the hot wind setting of room are as follows: 166 DEG C of air blast frequency 40Hz, wind-warm syndrome.After cylinder blast heater cloth outputting directly Into high-voltage corona electret machine, electret voltage 50kv, electret distance 10cm;The rolling machine winding of non-woven fabrics after Corona charge In rolls, yardage roll is cut through cutting machine again, and the maximum breadth of cutting is 1.6m, and product grammes per square metre is 85g/m2
Embodiment 6
The production of the embodiment of the present invention mainly comprises the steps of:
Component A polymer be homopolypropylene, 158~168 DEG C of fusing point;
B component polymer is the polyester slice through phosphorous flame-retardant modification, and 235~255 DEG C of fusing point, oxygen index (OI) is greater than 28%.
Side-by-side bicomponent blend proportion A:B=51:49 (mass ratio)
Above two polymer is respectively polyolefin and polyester polymer, the former is straight through single screw extrusion machine without baking material Row melting is tapped into push, and the latter then needs to carry out melting through single screw extrusion machine after the baking material of 155 DEG C, 9 hours is handled to push away It squeezes.
Component A raw material (containing 1.5% electret master batch) are melted by single screw extrusion machine, warm area setting are as follows: 195 DEG C, 205 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 225 DEG C, 225 DEG C of melt temperature, 230 DEG C of screw rod line temperature; Component A melt is filtered through filter, and pressure 13.5MPa before filtering, pressure 6.5MPa after filter, then melt enters metering pump-metered, meter Revolution speed 22rpm is measured, quantitative melt enters composite spining module.
B component polymer is (fire-retardant) to be melted by single screw extrusion machine, warm area setting are as follows: 280 DEG C, 282 DEG C, 285 DEG C, 285 DEG C, 285 DEG C, 282 DEG C, 284 DEG C of melt temperature, 285 DEG C of screw rod line temperature, B component melt is through filter mistake Filter, pressure 10.5MPa, pressure 6.5MPa after filter before filtering, then melt enters metering pump-metered, and metering pump speed 13rpm is quantitative Melt enter composite spining module.
The temperature for the closed case that melt distributes in composite spining module is maintained at 285 DEG C;Spinneret orifice squeezes out the two of long filament Side is to 10 DEG C of the cooling wind temperature blown, relative humidity 60%, air quantity 1050rpm;Air drawing wind pressure is 0.14MPa, drawing-off is high Spend 1.4m;At net spee 26.2m/min;Networking owner suction air amount 1000rpm, auxiliary suction air quantity 500rpm;Without precompressed Rolling pressure;Cylinder hot wind dries the hot wind setting of room are as follows: 166 DEG C of air blast frequency 40Hz, wind-warm syndrome.After cylinder blast heater cloth outputting directly Into high-voltage corona electret machine, electret voltage 50kv, electret distance 10cm;The rolling machine winding of non-woven fabrics after Corona charge In rolls, yardage roll is cut through cutting machine again, and the maximum breadth of cutting is 1.6m, and product grammes per square metre is 85g/m2
The fire-retardant long filament collateral fiber electrostatic cotton material obtained in the application, is suitably applied the filter core of field of air filtration High dust holding material, grammes per square metre when applying are generally 30~100g/m2
The main performance index of the corresponding product obtained in Examples 1 to 6 is as shown in table 1 below:
Existing common fire-retardant short fine electrostatic cotton is compared on products and marketing in embodiment 3, confirms through actual test every Performance indicator comparison such as the following table 2:
Remarks: 1. the sample processing conditions of oder levels described in upper table 2 are 80 DEG C/2 hours, after comparison confirmation heat treatment Sample smell discharges earthquake intensity.
2. the high-temperature process condition in " filter efficiency after high-temperature process " item described in upper table 2 is 100 DEG C/24H.
According to data shown in upper table 2,85g/m of the invention can be confirmed2The dust containing capacity of product is moderate, filtration resistance, high temperature ring Filter effect attenuation in border is significantly lower than the common same type of material in market, and more crucially thoroughly to solve market similar for the invention The pain spot that material is kept in check by tangy, at the same the invention material had both it is fire-retardant, it is easy rebound convenient for terminal client dismounting filter core, No needle mark pin hole possesses the advantages that long filament aesthetic feeling of carrys itself illuminating device, can provide energy conservation for building fresh air system, automobile manufacture industry Environmentally friendly, comprehensive good air filting material technical solution.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as At all equivalent modifications or change, should be covered by the claims of the present invention.

Claims (10)

1. a kind of electrostatic cotton material, which is characterized in that the electrostatic cotton material is made of two-component bicomponent filament yarn, and two-component is multiple Closing is in parallel construction in long filament, wherein the melt index of component A material is 34g/10min~42g/10min;B component material Inherent viscosity is 0.60dl/g~0.69dl/g, and oxygen index (OI) is more than 28.0%.
2. electrostatic cotton material according to claim 1, which is characterized in that on the basis of the gross mass of two-component bicomponent filament yarn Meter, the component A account for 40wt%~60wt%.
3. electrostatic cotton material according to claim 1, which is characterized in that including one of following feature or a variety of:
The fusing point of component A material is 158 DEG C~168 DEG C;
The fusing point of B component material is 235 DEG C~255 DEG C;
It is counted on the basis of the gross mass of component A material, 1wt%~3wt% electret master batch is contained in component A material;
It is counted on the basis of the gross mass of B component material, 20~50wt% fire retardant is contained in B component material.
4. electrostatic cotton material according to claim 3, which is characterized in that including one of following feature or a variety of:
The component A material is selected from one of equal polyolefin or a variety of;
The B component material is selected from one of flame-retardant modified polyester or a variety of;
The fire retardant is selected from one of phosphorus flame retardant or a variety of.
5. a kind of preparation method of such as described in any item electrostatic cotton materials of Claims 1 to 4, includes the following steps:
1) single screw extrusion machine will be added after the stirring of component A raw material, B component raw material are added another single screw extrusion machine and melt Enter composite spining module after extrusion and forms continuous parallel construction bicomponent filament yarn fiber;
2) through side-blown air cooling, and the networking after the positive pressure drawing-off of drawing-off wind;
3) the nonwoven cloth cover after networking is melted into cylinder hot wind bellows and is consolidated;
4) non-woven fabrics consolidated through cylinder hot wind crosses Corona charge machine electrion electret.
6. preparation method according to claim 5, which is characterized in that including one of following feature or a variety of:
Each area's temperature for the single screw extrusion machine that the component A raw material pass through is successively are as follows: 190~200 DEG C, 200~210 DEG C, 225~235 DEG C, 225~235 DEG C, 225~235 DEG C, 225~235 DEG C, 225~235 DEG C, 220~230 DEG C;
B component raw material pass through single screw extrusion machine each area's temperature be followed successively by 275~280 DEG C, 280~283 DEG C, 283~ 287 DEG C, 283~287 DEG C, 283~287 DEG C, 280~288 DEG C.
7. preparation method according to claim 5, which is characterized in that including one of following feature or a variety of:
The temperature of cross air blasting is 9~20 DEG C;
The pressure of drawing-off wind is 0.10~0.24MPa;
Drawing-off height is 0.7~1.6m.
8. preparation method according to claim 5, which is characterized in that in step 3), hot wind wind-warm syndrome is 155~175 DEG C.
9. preparation method according to claim 5, which is characterized in that including one of following feature or a variety of:
In step 4), 35~50kv of Corona charge voltage;
In step 4), 6~12cm of Corona charge distance.
10. such as the described in any item electrostatic cotton materials of Claims 1 to 4 are as the appearance dirt material of particulate pollutant in air filtration The purposes in field.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113181714A (en) * 2021-04-06 2021-07-30 陈琳 Bi-component filter cotton, and manufacturing method and application thereof
CN115262092A (en) * 2022-07-27 2022-11-01 上海精发实业股份有限公司 Orange petal cleavage type double-component filament needle-punched electrostatic cotton and preparation method thereof

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0568824A (en) * 1991-09-13 1993-03-23 Toray Ind Inc Flame-retardant filter medium and its production
CN1210908A (en) * 1998-09-07 1999-03-17 中国纺织大学 Preparation of composite porous hollow stereo crimped fiber with side-by-side bicomponent
CN1974906A (en) * 2006-12-12 2007-06-06 天津泰达洁净材料有限公司 Double component molten and jetted non-woven fabric and its making process
CN101387035A (en) * 2007-09-10 2009-03-18 东丽纤维研究所(中国)有限公司 Bi-component flame-retardant fibre fabric
CN101591837A (en) * 2009-07-08 2009-12-02 天津工业大学 A kind of double-component melt-blown durable electret non-woven fabric and manufacture method thereof
CN101929001A (en) * 2009-08-24 2010-12-29 江苏鹰翔化纤股份有限公司 Collateral fiber of PET (Polyethylene Terephthalate) and PBS (Poly Butylenes Succinate)
CN102264968A (en) * 2008-12-23 2011-11-30 金伯利-克拉克环球有限公司 Nonwoven web and filter media containing partially split multicomponent fibers
CN106661792A (en) * 2014-07-03 2017-05-10 出光兴产株式会社 Spun-bonded nonwoven fabric and method for producing same
CN107385683A (en) * 2017-08-11 2017-11-24 上海精发实业股份有限公司 A kind of non-woven filtration media and its production and use
CN108708079A (en) * 2018-06-11 2018-10-26 上海精发实业股份有限公司 High temperature resistant polylactic acid is meltblown electret non-woven filter material and its preparation method and application

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0568824A (en) * 1991-09-13 1993-03-23 Toray Ind Inc Flame-retardant filter medium and its production
CN1210908A (en) * 1998-09-07 1999-03-17 中国纺织大学 Preparation of composite porous hollow stereo crimped fiber with side-by-side bicomponent
CN1974906A (en) * 2006-12-12 2007-06-06 天津泰达洁净材料有限公司 Double component molten and jetted non-woven fabric and its making process
CN101387035A (en) * 2007-09-10 2009-03-18 东丽纤维研究所(中国)有限公司 Bi-component flame-retardant fibre fabric
CN102264968A (en) * 2008-12-23 2011-11-30 金伯利-克拉克环球有限公司 Nonwoven web and filter media containing partially split multicomponent fibers
CN101591837A (en) * 2009-07-08 2009-12-02 天津工业大学 A kind of double-component melt-blown durable electret non-woven fabric and manufacture method thereof
CN101929001A (en) * 2009-08-24 2010-12-29 江苏鹰翔化纤股份有限公司 Collateral fiber of PET (Polyethylene Terephthalate) and PBS (Poly Butylenes Succinate)
CN106661792A (en) * 2014-07-03 2017-05-10 出光兴产株式会社 Spun-bonded nonwoven fabric and method for producing same
CN107385683A (en) * 2017-08-11 2017-11-24 上海精发实业股份有限公司 A kind of non-woven filtration media and its production and use
CN108708079A (en) * 2018-06-11 2018-10-26 上海精发实业股份有限公司 High temperature resistant polylactic acid is meltblown electret non-woven filter material and its preparation method and application

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113181714A (en) * 2021-04-06 2021-07-30 陈琳 Bi-component filter cotton, and manufacturing method and application thereof
CN115262092A (en) * 2022-07-27 2022-11-01 上海精发实业股份有限公司 Orange petal cleavage type double-component filament needle-punched electrostatic cotton and preparation method thereof

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