CN112481823B - Processing device and processing method suitable for melt-blown non-woven fabric - Google Patents
Processing device and processing method suitable for melt-blown non-woven fabric Download PDFInfo
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- CN112481823B CN112481823B CN202011196940.4A CN202011196940A CN112481823B CN 112481823 B CN112481823 B CN 112481823B CN 202011196940 A CN202011196940 A CN 202011196940A CN 112481823 B CN112481823 B CN 112481823B
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- 239000004750 melt-blown nonwoven Substances 0.000 title claims abstract description 17
- 239000004744 fabric Substances 0.000 title claims abstract description 16
- 238000003672 processing method Methods 0.000 title abstract description 8
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims description 27
- 239000000155 melt Substances 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 22
- 239000012943 hotmelt Substances 0.000 claims description 18
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 229920005992 thermoplastic resin Polymers 0.000 claims description 4
- 238000003490 calendering Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 7
- 238000009987 spinning Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
-
- 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
- D01D13/00—Complete machines for producing artificial threads
-
- 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
- D01D4/00—Spinnerette packs; Cleaning thereof
-
- 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
- D01D5/098—Melt spinning methods with simultaneous stretching
- D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/4334—Polyamides
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention is suitable for the technical field of non-woven fabrics, and provides a processing device and a processing method thereof suitable for melt-blown non-woven fabrics.
Description
Technical Field
The invention belongs to the technical field of non-woven fabrics, and particularly relates to a processing device and a processing method suitable for melt-blown non-woven fabrics.
Background
Since the meltblown nonwoven fabric is composed of very fine melt filaments as compared with the spunbond nonwoven fabric, it is excellent in particle trapping property, and is used for liquid filters, gas filters, and the like, and is also used for battery separators and the like because of excellent insulation between electrodes and retention of electrolyte.
At present, most of non-woven fabric receiving devices generally adopt a receiving roller, in the winding process, in order to facilitate the adsorption of melt filaments of the spray melting on the receiving roller, devices such as an air pump and the like are usually connected into the receiving roller, and through holes are formed in the outer surface of the receiving roller.
Disclosure of Invention
The invention provides a processing device and a processing method suitable for melt-blown non-woven fabrics, and aims to solve the problems that most of the receiving devices of the non-woven fabrics at present generally adopt a receiving roller, in the winding process, in order to facilitate the adsorption of melt filaments which are blown and melted on the receiving roller, devices such as an air pump and the like are usually connected into the receiving roller, through holes are formed in the outer surface of the receiving roller, after the receiving roller is used for a long time, the surfaces of the receiving roller and the inner parts of the through holes are easy to adhere with melt bulges, and the surfaces of the non-woven fabrics are pressed by the melt, so that the quality of the non-woven fabrics is greatly influenced.
The invention discloses a processing device suitable for melt-blown non-woven fabrics, which comprises a hot-melt machine, a screw extruder, an air compressor, an air heating tank, a nozzle, a shell, an air duct, a blower, a baffle and a receiving roller, wherein the screw extruder is positioned at one side of the hot-melt machine, one end of the screw extruder penetrates through the hot-melt machine and is communicated with the interior of the hot-melt machine, the air compressor is fixedly connected to the top of the air heating tank, the air heating tank is positioned at the output end of the screw extruder and is fixedly connected with the screw extruder, the nozzle is fixedly connected with the output end of the screw extruder and is communicated with the output end of the hot-melt machine, the shell is positioned at the right side of the nozzle, the air duct is arranged at one side of the shell adjacent to the nozzle, the blower is positioned in the shell and is fixedly connected with the inner wall of the shell, the baffle is detachably connected to the inner wall of the shell, and the receiving roller is positioned in the shell and is rotationally connected with the shell.
Preferably, the number of the nozzles is plural, the plural nozzles are arranged in plural rows, and the plural rows of the nozzles are alternately arranged.
Preferably, the number of the air channels is two, the two air channels are vertically and symmetrically distributed along the central axis of the nozzle, and the adjacent ends of the two air channels are bent to ninety degrees towards the inside of the shell.
Preferably, a cylindrical cavity is formed in the shell, and small holes for air inlet are formed in the top of the shell and the bottom of the shell.
Preferably, a plurality of air outlet holes are formed in the inner wall of the inner cavity of the shell, the angles of the air outlet holes are perpendicular to the tangent line of the roller, and the air outlet holes are communicated with the inside of the shell.
Preferably, the number of the baffles is two, the two baffles are respectively positioned at the front side and the rear side of the roller, and the two baffles are detachably connected with the side wall of the shell.
A processing method suitable for a processing device of melt-blown nonwoven fabric, comprising the following steps:
step 1, pouring raw materials into a hot melting machine, and heating at high temperature to melt the raw materials;
step 2, extruding raw materials through a nozzle by a screw extruder;
step 3, drawing the raw material melt into filaments by high-speed hot air flow;
step 4, opening a blower to control the flight path of the melt filaments through an air duct;
step 5, rotating a receiving roller to receive melt filaments and randomly lapping and solidifying to form non-woven fabrics;
and 6, rolling the formed non-woven fabric, and carrying out calendaring, electrification and hydrophilization treatment.
Preferably, in the step 1, the raw materials include polyolefin such as polyethylene and polypropylene, polyester, polyether ether ketone, polyphenylene sulfide and polyamide melt-blown thermoplastic resins.
Preferably, the air flow rate of the high-speed hot air flow in the step 3 is five to eight times of zero point of the sonic velocity, and is preferably eight times of zero point of the sonic velocity.
Compared with the prior art, the invention has the beneficial effects that: according to the processing device and the processing method suitable for the melt-blown non-woven fabric, when the processing device is used, the air compressor, the shell, the air duct, the air blower and the baffle are arranged, the high-speed hot air is horizontally blown to melt filaments sprayed out of the nozzle through the air compressor, the melt filaments are pulled and thinned, then the air blower is turned on, external air is conveyed to the air outlet holes and the air duct arranged on the inner wall of the shell through the air duct through the air blower, and the melt filaments blown into the shell are tightly pressed and stuck to the outer surface of the collecting roller through air pressure, so that the problem that an air pump is required to be arranged in the collecting roller in a traditional mode, small holes are arranged on the outer surface of the collecting roller, the melt filaments are easy to adhere to the collecting roller, and the quality of a subsequent non-woven fabric is reduced is solved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the operation flow in the present invention;
in the figure: 11. a hot melt machine; 12. a screw extruder; 13. an air compressor; 14. an air heating tank; 15. a nozzle; 16. a housing; 17. an air duct; 18. a blower; 19. a baffle; 20. and (5) collecting the roller.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a processingequipment suitable for melt-blown non-woven fabrics, including hot melt machine 11, screw extruder 12, air compressor 13, air heating jar 14, nozzle 15, shell 16, wind channel 17, air-blower 18, baffle 19 and receipts cylinder 20, screw extruder 12 is located one of them side of hot melt machine 11, one of them end of screw extruder 12 runs through hot melt machine 11, and communicate with the inside of hot melt machine 11, air compressor 13 fixed connection is in air heating jar 14 top, air heating jar 14 is located the output of screw extruder 12, and with screw extruder 12 fixed connection, nozzle 15 and the output fixed connection of screw extruder 12, and be linked together with the output of hot melt machine 11, shell 16 is located nozzle 15 right side, wind channel 17 is seted up in shell 16 and the adjacent one side of nozzle 15, air-blower 18 is located shell 16 inside, and be connected with shell 16 inner wall fixed connection, baffle 19 detachably connects on shell 16's inner wall, receipts cylinder 20 is located shell 16 inside, and rotate with shell 16.
In the embodiment, the screw extruder 12 is positioned at one side of the hot-melt machine 11, one end of the screw extruder 12 penetrates through the hot-melt machine 11 and is communicated with the interior of the hot-melt machine 11, the air compressor 13 is fixedly connected to the top of the air heating tank 14, the air heating tank 14 is positioned at the output end of the screw extruder 12 and is fixedly connected with the screw extruder 12, the nozzle 15 is fixedly connected with the output end of the screw extruder 12 and is communicated with the output end of the hot-melt machine 11, the shell 16 is positioned at the right side of the nozzle 15, the air duct 17 is arranged at one side of the shell 16 adjacent to the nozzle 15, the air blower 18 is positioned in the shell 16 and is fixedly connected with the inner wall of the shell 16, the baffle 19 is detachably connected to the inner wall of the shell 16, the collecting roller 20 is positioned in the shell 16 and is rotatably connected with the shell 16, when in use, after cutting and fine-cutting raw materials are added into the interior of the hot-melt machine 11, the internal temperature of the hot-melt machine 11 is adjusted to two hundred sixty degrees, raw materials are continuously heated, after the raw materials are heated to be in a completely molten state, the raw materials are led into a spinning former through a screw extruder 12, the raw materials in the molten state are ejected through a nozzle 15 through the spinning former, at the moment, an air heating tank 14 and an air compressor 13 are started, air is sucked from the outside through the air compressor 13 and passes through the air heating tank 14 at a high speed, after the air is heated through the air heating tank 14, the melt filaments ejected along with the nozzle 15 are blown out horizontally, the high-speed flowing hot air further pulls the melt filaments in the air, the diameter of the melt filaments is reduced, at the moment, a blower 18 in the shell 16 is opened, and when the blower 18 rotates, the external air is sucked into the shell 16 through small holes formed in the top and the bottom of the shell 16, and discharge the air through the wind channel 17 that shell 16 left side was offered, promote the flight distance of fuse-element filament, and carry out further pulling to the fuse-element filament, reduce the diameter of fuse-element filament, thereby improve the quality and the compliance of non-woven fabrics, a plurality of air-out holes have been offered on the shell 16 inner wall, the angle and the receipts cylinder 20 tangent line of air-out hole are perpendicular, a plurality of air-out holes all are linked together with shell 16 inside, make the air-blower 18 inhaled air have a part to overflow through the air-out hole, will blow into the inside fuse-element filament of shell 16 tightly sticiss in the surface of receipts cylinder 20 through wind pressure, thereby avoid traditional mode to need at receipts cylinder 20 internally mounted air pump, and offer the aperture at receipts cylinder 20's surface, make the fuse-element filament adhere to receive on cylinder 20 easily, cause the problem of the quality decline of follow-up non-woven fabrics.
Further, the number of the nozzles 15 is plural, the plural nozzles 15 are arranged in plural rows, and the plural rows of the nozzles 15 are alternately arranged.
In the present embodiment, a plurality of nozzles 15 are provided, and the plurality of nozzles 15 are arranged in a plurality of rows, and the plurality of rows of nozzles 15 are alternately arranged with each other to increase the speed of the melt filaments in the molten state, so that the plurality of nozzles 15 can simultaneously spray filaments.
Further, the number of the air channels 17 is two, the two air channels 17 are vertically and symmetrically distributed along the central axis of the nozzle 15, and adjacent ends of the two air channels 17 are bent to ninety degrees towards the inside of the outer shell 16.
In this embodiment, two air channels 17 are provided, and the two air channels 17 are symmetrically distributed up and down along the axis of the nozzle 15, so as to accelerate the ejected melt filament, and in the acceleration process, the melt filament is further pulled by the air flow flowing at a high speed, so that the diameter of the melt filament is further reduced, and the adjacent ends of the two air channels 17 are bent to ninety degrees towards the inside of the housing 16, so that the air flow direction is changed, and the melt filament is prevented from escaping from the outside of the housing 16.
Further, a cylindrical cavity is arranged in the shell 16, and small holes for air intake are formed in the top of the shell 16 and the bottom of the shell 16.
In this embodiment, a cylindrical cavity is provided in the interior of the housing 16 for accommodating the take-up roller 20, and small holes for air intake are provided at the top and bottom of the housing 16, so that the blower 18 can draw outside air into the interior of the housing 16 and output through the air duct 17 to further pull the melt filaments.
Further, a plurality of air outlet holes are formed in the inner wall of the inner cavity of the casing 16, the angles of the air outlet holes are perpendicular to the tangent line of the collecting roller 20, and the air outlet holes are communicated with the inside of the casing 16.
In this embodiment, a plurality of air outlet holes are formed in the inner wall of the inner cavity of the casing 16, the angle of each air outlet hole is perpendicular to the tangent line of the winding drum 20, and the air outlet holes are all communicated with the inside of the casing 16, so that a part of air sucked by the blower 18 can overflow through the air outlet holes, and melt filaments blown into the inside of the casing 16 are tightly pressed and stuck to the outer surface of the winding drum 20 through wind pressure, thereby avoiding the problem that the conventional mode needs to install an air pump in the winding drum 20, and small holes are formed in the outer surface of the winding drum 20, so that the melt filaments are easy to adhere to the winding drum 20, and the quality of the subsequent non-woven fabric is reduced.
Further, the number of the baffles 19 is two, the two baffles 19 are respectively located at the front side and the rear side of the receiving roller 20, and the two baffles 19 are detachably connected with the side wall of the shell 16.
In this embodiment, two baffles 19 are disposed before and after the roller 20 to block the melt filaments from leaking, and simultaneously, the device can perform the function of wind gathering, so that the wind speed is faster, the baffles 19 are detachably connected with the housing 16, and the user can clean the melt filaments attached to the inner wall of the baffles 19 conveniently.
A processing method suitable for a processing device of melt-blown nonwoven fabric, comprising the following steps:
step 1, pouring raw materials into a hot melting machine, and heating at high temperature to melt the raw materials;
step 2, extruding raw materials through a nozzle by a screw extruder;
step 3, drawing the raw material melt into filaments by high-speed hot air flow;
step 4, opening a blower to control the flight path of the melt filaments through an air duct;
step 5, rotating a receiving roller to receive melt filaments and randomly lapping and solidifying to form non-woven fabrics;
in this embodiment, firstly, raw materials are added into a hot-melting machine 11, the internal temperature of the hot-melting machine 11 is regulated to two hundred and sixty degrees, the raw materials are continuously heated, after the raw materials are heated to be in a completely molten state, the raw materials are introduced into a spinning former through a screw extruder 12, the raw materials in the molten state are ejected through a nozzle 15 through the spinning former, at this time, an air heating tank 14 and an air compressor 13 are started, air is sucked from the outside through the air compressor 13 and passes through the air heating tank 14 at a high speed, after the air is heated through the air heating tank 14, melt filaments ejected along with the nozzle 15 are blown out horizontally, the high-speed hot air further pulls the melt filaments in the air to reduce the diameter of the melt filaments, at this time, a blower 18 in the housing 16 is opened, and when the blower 18 rotates, external air is sucked into the housing 16 through small holes formed at the top and bottom of the housing 16, air is discharged through an air duct 17 formed on the left side of the shell 16, the flight distance of melt filaments is increased, the melt filaments are further pulled, the diameter of the melt filaments is reduced, the quality and softness of non-woven fabrics are improved, a plurality of air outlet holes are formed on the inner wall of the shell 16, the angle of each air outlet hole is perpendicular to the tangent line of the receiving roller 20, the air outlet holes are communicated with the inside of the shell 16, a part of air sucked by the air blower 18 can overflow through the air outlet holes, the melt filaments blown into the shell 16 are tightly pressed against the outer surface of the receiving roller 20 through air pressure, the problem that the conventional mode needs to install an air pump in the receiving roller 20 and small holes are formed on the outer surface of the receiving roller 20, the melt filaments are easy to adhere to the receiving roller 20, and the quality of subsequent non-woven fabrics is reduced is avoided, the outer surface of the take-up roller 20 is adhered with a film for receiving melt filaments, after the take-up roller 20 is rolled, the formed non-woven fabric communication film can be taken off together, so that the problem that the subsequently formed non-woven fabric is easy to be creased due to the fact that the melt filaments are directly adhered to the take-up roller 20 is avoided.
In the step 1, the raw materials are thermoplastic resins which can be melt-blown and are selected from polyolefin such as polyethylene and polypropylene, polyester, polyether ether ketone, polyphenylene sulfide and polyamide.
In the present embodiment, the raw material is a thermoplastic resin such as polyethylene, polypropylene, or other polyolefin, polyester, polyether ether ketone, polyphenylene sulfide, or polyamide, and the raw material has high plasticity after heating, and can produce extremely fine melt filaments.
Further, in the step 3, the air flow rate of the high-speed hot air flow is five to eight times of the zero point of the sonic velocity, and is preferably eight times of the zero point of the sonic velocity.
In this embodiment, the air flow rate of the high-speed hot air flow is five to eight times of the zero point of the sonic velocity, preferably eight times of the zero point of the sonic velocity, and the high-speed hot air flow is set to further pull the ejected melt filaments, so that the diameter of the melt filaments is finer, thereby improving the quality and softness of the nonwoven fabric.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. The utility model provides a processingequipment suitable for melt-blown non-woven fabrics, includes hot melt machine, screw extruder, air compressor, air heating jar, nozzle, shell, wind channel, air-blower, baffle and receipts cylinder, its characterized in that: the screw extruder is positioned at one side of the hot melting machine, one end of the screw extruder penetrates through the hot melting machine and is communicated with the interior of the hot melting machine, the air compressor is fixedly connected to the top of the air heating tank, the air heating tank is positioned at the output end of the screw extruder and is fixedly connected with the screw extruder, the nozzle is fixedly connected with the output end of the screw extruder and is communicated with the output end of the hot melting machine, the shell is positioned at the right side of the nozzle, the air duct is arranged at one side of the shell adjacent to the nozzle, the air blower is positioned in the shell and is fixedly connected with the inner wall of the shell, the baffle is detachably connected to the inner wall of the shell, and the collecting roller is positioned in the shell and is rotationally connected with the shell. The number of the air channels is two, the two air channels are distributed vertically symmetrically along the central axis of the nozzle, and the adjacent ends of the two air channels are bent to ninety degrees towards the inside of the shell; a cylindrical cavity is formed in the shell, and small holes for air inlet are formed in the top of the shell and the bottom of the shell; a plurality of air outlet holes are formed in the inner wall of the inner cavity of the shell, the angles of the air outlet holes are perpendicular to the tangent line of the roller, and the air outlet holes are communicated with the inside of the shell.
2. The processing device for melt blown nonwoven fabric of claim 1, wherein: the number of the nozzles is a plurality, the nozzles are arranged in a plurality of rows, and the nozzles in a plurality of rows are alternately arranged.
3. The processing device for melt blown nonwoven fabric of claim 1, wherein: the number of the baffles is two, the two baffles are respectively positioned at the front side and the rear side of the roller, and the two baffles are detachably connected with the side wall of the shell.
4. A method of processing a meltblown nonwoven web according to any one of claims 1-3, characterized in that: the method comprises the following steps:
step 1, pouring raw materials into a hot melting machine, and heating at high temperature to melt the raw materials;
step 2, extruding raw materials through a nozzle by a screw extruder;
step 3, drawing the raw material melt into filaments by high-speed hot air flow;
step 4, opening a blower to control the flight path of the melt filaments through an air duct;
step 5, rotating a receiving roller to receive melt filaments and randomly lapping and solidifying to form non-woven fabrics;
and 6, rolling the formed non-woven fabric, and carrying out calendaring, electrification and hydrophilization treatment.
5. The method of claim 4, wherein the device for processing the melt-blown nonwoven fabric comprises: in the step 1, the raw materials are thermoplastic resins which can be melt-blown and comprise polyolefin such as polyethylene, polypropylene and the like, polyester, polyether-ether-ketone, polyphenylene sulfide and polyamide.
6. The method of claim 5, wherein the device for processing the melt-blown nonwoven fabric comprises: and 3, the air flow speed of the high-speed hot air flow in the step is five to eight times of zero of the sonic speed.
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|---|---|---|---|---|
| CN108456940A (en) * | 2018-05-02 | 2018-08-28 | 嘉兴学院 | A kind of fiber preparation facilities with asymmetric die head |
| CN110998006A (en) * | 2017-08-10 | 2020-04-10 | 株式会社可乐丽 | Melt-blown nonwoven fabric, laminate using same, method for producing melt-blown nonwoven fabric, and melt-blowing apparatus |
| CN111254583A (en) * | 2020-04-02 | 2020-06-09 | 何梦丹 | Pretreatment process for production raw materials of melt-blown non-woven fabric |
| CN111648042A (en) * | 2020-06-13 | 2020-09-11 | 哈尔滨极者科技有限责任公司 | Preparation method of hydrophobic melt-blown fabric |
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|---|---|---|---|---|
| CN110998006A (en) * | 2017-08-10 | 2020-04-10 | 株式会社可乐丽 | Melt-blown nonwoven fabric, laminate using same, method for producing melt-blown nonwoven fabric, and melt-blowing apparatus |
| CN108456940A (en) * | 2018-05-02 | 2018-08-28 | 嘉兴学院 | A kind of fiber preparation facilities with asymmetric die head |
| CN111254583A (en) * | 2020-04-02 | 2020-06-09 | 何梦丹 | Pretreatment process for production raw materials of melt-blown non-woven fabric |
| CN111648042A (en) * | 2020-06-13 | 2020-09-11 | 哈尔滨极者科技有限责任公司 | Preparation method of hydrophobic melt-blown fabric |
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