CN210262230U - Manufacturing equipment of spunbonded nonwoven fabric - Google Patents
Manufacturing equipment of spunbonded nonwoven fabric Download PDFInfo
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- CN210262230U CN210262230U CN201920618759.4U CN201920618759U CN210262230U CN 210262230 U CN210262230 U CN 210262230U CN 201920618759 U CN201920618759 U CN 201920618759U CN 210262230 U CN210262230 U CN 210262230U
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 42
- 238000007664 blowing Methods 0.000 claims abstract description 27
- 238000009987 spinning Methods 0.000 claims abstract description 26
- 238000002788 crimping Methods 0.000 claims abstract description 14
- 238000009474 hot melt extrusion Methods 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims description 27
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 description 200
- 229920000297 Rayon Polymers 0.000 description 36
- 229920005989 resin Polymers 0.000 description 32
- 239000011347 resin Substances 0.000 description 32
- 230000008018 melting Effects 0.000 description 22
- -1 polypropylene Polymers 0.000 description 22
- 239000004698 Polyethylene Substances 0.000 description 13
- 229920000573 polyethylene Polymers 0.000 description 13
- 239000004743 Polypropylene Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 229920001155 polypropylene Polymers 0.000 description 9
- 239000002131 composite material Substances 0.000 description 7
- 238000005098 hot rolling Methods 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 229920013716 polyethylene resin Polymers 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 4
- 238000012681 fiber drawing Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 239000012792 core layer Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000003811 curling process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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- Nonwoven Fabrics (AREA)
Abstract
The utility model discloses a manufacturing equipment of spun-bonded non-woven fabric, which comprises a hot melt extrusion device, a spinning device, a side-blowing cold air device, a mechanical drafting device, a hot air curling device, a swing silk lapping device, a web forming device and a slitting and winding device which are connected with each other in sequence, wherein the hot melt extrusion device at least comprises two groups and is connected with the spinning device; the mechanical drafting device is provided with at least 3 drafting rollers which are longitudinally arranged on two sides below the side cold air blowing device in a staggered mode in two groups and can horizontally move to the same vertical line, and the rotating speed of the drafting rollers close to the spinneret plate is sequentially smaller than that of the drafting rollers far away from the spinneret plate; the hot-blast crimping device is located the both sides hot-blast device that blows under the mechanical draft device, and the hot-blast and vertical contained angle scope of side-blown is between 5 ~ 90, utilizes the utility model discloses a production of manufacture equipment spunbonded nonwoven is soft, fluffy.
Description
Technical Field
The utility model relates to a spunbonded non-woven fabrics technical field especially relates to be applied to the manufacturing equipment of a soft, fluffy spunbonded non-woven fabrics of personal care, infant's nursing usefulness.
Background
Since the industrialized production of non-woven fabrics, also called non-woven fabrics, in 1942 began in the united states, they are now the most rapidly developing new field in the textile industry due to their characteristics of simpler production process, higher yield, lower cost, wider application of products, etc. compared with the traditional woven fabrics. The spun-bonded non-woven fabric is usually formed by thermoplastic resin through an extruder and a spinneret plate to form long fibers, the long fibers are laid into a net, and a metal hot roller is adopted to perform local hot rolling and bonding on the non-woven fabric fibers. However, the conventional spun-bonded nonwoven fabric is usually drafted by an air stream because of drafting, so that the formed long fiber has large fineness, the formed spun-bonded nonwoven fabric has poor softness, and the formed long fiber is directly laid without curling, so that the formed spun-bonded nonwoven fabric has small three-dimensional thickness and poor bulkiness.
Patent application No. CN97121375.5 entitled composite long fiber nonwoven fabric and method for producing the same, provides a bulky and high-strength composite long fiber nonwoven fabric and method for producing the same. The core-shell type composite fibers of high-density polyethylene (shell side) and polypropylene (core side) on the net curtain conveyor belt type net web trapping device are spun by a composite spunbonding method, and are stretched on a high-speed airflow stretching device, the fibers and air are blown onto the net curtain conveyor belt together, and the air is sucked by a high-speed airflow sucking device at the lower part of the net curtain conveyor belt. The collected web was passed through a high-speed air stream suction stop region and then subjected to a hot air treatment at a temperature of 144 ℃ to obtain a nonwoven fabric in which the cross points between the composite long fibers were thermally fused. The composite fibers in the fiber web are curled and melted on the surface in hot air flow, and the fibers are bonded with each other to form a fluffy spun-bonded non-woven fabric. However, the hot air crimping is performed after the formation of the web, and the bonding and crimping are simultaneously completed, so that the crimping of the composite fibers is limited due to the surface bonding between the fibers without the crimping being completed, thereby affecting the bulkiness of the spunbonded nonwoven fabric, and the fineness of the formed fibers is limited by the air draft, thereby affecting the softness of the spunbonded nonwoven fabric.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can produce the manufacturing equipment of the spunbonded nonwoven of soft, fluffy spunbonded nonwoven, overcome the defect of current manufacturing equipment.
To achieve the above object, the solution of the present invention is:
a manufacturing device of spun-bonded non-woven fabric comprises a hot-melting extrusion device, a spinning device, a side-blowing cold air device, a mechanical drafting device, a hot air curling device, a swing silk lapping device, a web forming device and a slitting and winding device which are sequentially connected with one another, wherein the hot-melting extrusion device is at least composed of two groups and is connected with the spinning device; the side cold air blowing device is positioned below a spinneret plate of the spinning device; the mechanical drafting device is positioned below the side cold air blowing device and is provided with at least 3 drafting rollers, the drafting rollers are longitudinally arranged on two sides below the side cold air blowing device in a staggered mode in two groups and can horizontally move to the same vertical line, and the rotating speed of the drafting rollers close to the spinneret plate is sequentially smaller than that of the drafting rollers far away from the spinneret plate; the hot air crimping devices are positioned on two sides right below the mechanical drafting device, and the included angle between the side-blown hot air and the longitudinal direction is 5-90 degrees.
At least one of the drawing rollers has a heating device.
The net forming device is a hot air oven, a hot roller or the combination of the hot air oven and the hot roller.
The spinneret plate is provided with two-component spinneret orifices which are respectively in a sheath-core type, a tangerine-petal type or a parallel type.
The spinneret plate also comprises single-component spinneret orifices which are uniformly distributed among the double-component spinneret orifices.
The number ratio of the bicomponent spinneret orifices to the total spinneret orifices is more than 20%.
The ratio of the rotating speed of the last drafting roller far away from the spinneret plate to the rotating speed of the first drafting roller close to the spinneret plate is more than or equal to 1.5.
The ratio of the rotating speed of the last drafting roller far away from the spinneret plate to the rotating speed of the first drafting roller close to the spinneret plate is 2-5.
After the technical proposal is adopted, in the process of producing the spun-bonded non-woven fabric by using the manufacturing equipment of the spun-bonded non-woven fabric, because the fiber drafting adopts mechanical drafting and the drafting device adopts the drafting rollers which can move horizontally, the crude fiber is easier to wind on each drafting roller, and the thick fibers are formed into spun-bonded long fibers with smaller fineness through the difference of the rotating speed between the drafting rollers, meanwhile, the crude fiber is mechanically drawn after being cooled, so that greater internal stress is generated inside the fiber, the subsequent hot air crimping process is beneficial to the fact that the fibers are more easily crimped after being heated, the double-component fibers in the spun-bonded long fibers are crimped by side-blowing hot air in a free state of the fibers after mechanical drafting, crimping is facilitated, and the adhesion of the surfaces of the fibers is prevented by controlling the temperature of the hot air, so that crimping of the double-component fibers is influenced. And adopt the utility model discloses a spunbonded nonwoven that manufacture equipment and manufacturing method formed because two ingredient fibre form curly before the pendulum silk forms the fibre web, consolidates into spunbonded nonwoven after, and the bond between the fibre is less, has both increased spunbonded nonwoven's compliance and has increased its fluffiness again.
Drawings
FIG. 1 is a schematic view of a manufacturing apparatus of a spunbonded nonwoven fabric according to embodiment 1 of the present invention;
FIG. 2A is a schematic view of a mechanical drafting device of the apparatus for producing a spunbonded nonwoven fabric of FIG. 1 before operation;
FIG. 2B is a schematic illustration of a mechanical drawing device of the apparatus for producing the spunbonded nonwoven fabric of FIG. 1 in operation;
fig. 3 is a schematic view of manufacturing a spunbonded nonwoven fabric according to example 1 of the present invention;
FIG. 4A is a cross-sectional view of a two-component sheath-core spun-bonded long fiber in the spun-bonded nonwoven fabric of the present invention;
FIG. 4B is a cross-sectional view of a two-component long spunbond fiber in a spunbond nonwoven fabric of the present invention being a two-component orange-peel long spunbond fiber;
FIG. 4C is a cross-sectional view of the two-component spunbond filaments in the spunbond nonwoven fabric of the present invention being two-component side-by-side spunbond filaments;
fig. 5 is a schematic view of manufacturing a spunbonded nonwoven fabric according to embodiment 2 of the present invention;
fig. 6 is a schematic view of manufacturing a spunbonded nonwoven fabric according to example 3 of the present invention;
fig. 7 is a schematic view of manufacturing a spunbonded nonwoven fabric according to embodiment 4 of the present invention.
[ notation ] to show
Hot melt extrusion apparatus A1, A1 ', A2, A2', A3, A3 ', A4, A4'
Coarse bicomponent spun-bonded long fiber a1
Coarse spunbond filaments a2, a3, a4
Spunbond long fibers b1, b2, b3, b4
Bicomponent sheath-core spun-bonded long fiber d
Core layer d1 of double-component sheath-core spun-bonded long fiber
Surface layer d2 of double-component core-skin type spun-bonded long fiber
Two-component orange petal type spun-bonded long fiber e
Bicomponent side-by-side spun-bonded long fiber f
High melting point resin e1, f1 and low melting point resin e2 and f2
Spinneret B1, B2, B3 and B4 of spinning device B
The side-blowing cold air device C blows cold air C1, C2, C3 and C4 on the side
Mechanical draft device D
Drafting rollers D11, D21, D31, D12, D22, D32, D42, D52, D13, D23, D33, D43, D53, D14, D24, D34, D44, D54, D64
Hot air crimping device E
Side-blown hot air E1, E2, E3, E41 and E42
Swing wire lapping device F
Net forming curtains F1, F2, F3 and F4
Net forming device G
Hot air oven G1, G3, G4 Hot Rolling Rollers G2 ', G3'
Slitting and winding device H
The direction of the side-blown hot air is at an angle α with the longitudinal direction.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
Referring to fig. 1, the present invention discloses a manufacturing apparatus for spunbonded nonwoven fabrics, comprising a hot melt extrusion device a1, a1 ', a spinning device B, a side blowing cold air device C, a mechanical drafting device D, a hot air crimping device E, a swinging filament lapping device F, a web forming device G and a slitting and winding device H which are connected in sequence, wherein the hot melt extrusion device a1, a 1' are at least composed of two groups and connected with the spinning device B, the side blowing cold air device C is located below a spinneret B1 of the spinning device B, the mechanical drafting device D is located below the side blowing cold air device C, the mechanical drafting device D is provided with at least 3 spinning rolls D1, before a coarse spunbonded two-component fiber drawing device D enters a mechanical drafting device D, the two drafting rolls D1, D1 are arranged on two sides below the side blowing cold air device C in a longitudinal staggered arrangement at two groups, as shown in fig. 2A 1 a rotating speed range from a rotating speed of a spinneret B of a spinneret D of a spinneret B and a spinneret D of a spinneret B1, the drawing device D is equal to a rotating speed of a single-rotating single-component fiber drawing device D of a single-component fiber drawing device D, the rotating drawing device D is equal to a rotating speed of a rotating filament drawing device D, the rotating of a rotating speed of a rotating drawing device D is equal to a rotating speed of a rotating drawing device D, the rotating of a rotating of a rotating filament drawing device D rotating of a rotating drawing device D rotating a rotating of a rotating filament drawing device D rotating of a rotating drawing device D.
The horizontally moving draft rollers D11, D21, D31 may be one-side draft rollers D11, D21, D31 moving or both-side draft rollers D11, D21, D31 moving together.
Wherein, the net forming device G is a hot air oven, a hot roller or the combination of the hot air oven and the hot roller.
Example 1
As shown in fig. 1 to 4C, a method for manufacturing a spunbonded nonwoven fabric using the apparatus for manufacturing a spunbonded nonwoven fabric of the present invention includes the steps of:
(1) the method comprises the following steps that high-temperature melt is extruded from low-melting-point resin polyethylene and high-melting-point polypropylene resin with the melting point difference of more than or equal to 20 ℃ through hot-melting extrusion devices A1 and A1' respectively and enters a spinning device B, the high-temperature melt is changed into melt trickle in the spinning device B, the melt trickle is sprayed out through a spinneret plate B1 of the spinning device B, side-blown cold air C1 cools the melt trickle to form coarse two-component spun-bonded long fiber a1, and the coarse two-component spun-bonded long fiber a1 is two-component sheath-core spun-bonded long fiber d, two-component orange-petal spun-bonded long fiber e or two; the surface layer d2 of the two-component core-sheath spun-bonded long fiber is low-melting-point resin, the core layer d1 of the two-component core-sheath spun-bonded long fiber is high-melting-point resin, the two-component orange-petal spun-bonded long fiber e comprises high-melting-point resin e1 and low-melting-point resin e2 which are arranged in an interval and staggered mode, and the two-component parallel spun-bonded long fiber f comprises high-melting-point resin f1 and low-melting-point resin f2 which are arranged in.
(2) The formed coarse two-component spun-bonded long fiber a1 enters a mechanical drafting device D1 to mechanically stretch the coarse two-component spun-bonded long fiber a1 to form the two-component spun-bonded long fiber. The mechanical drafting device D1 is positioned below a position of side-blowing cold air C1 and is provided with at least 3 drafting rollers D11, D21 and D21, before the coarse two-component spunbonded long fibers a 21 enter the mechanical drafting device D21, the drafting rollers D21, D21 and the drafting rollers D21 are longitudinally staggered in two groups at two sides below the position of the side-blowing cold air C21, after the coarse two-component spunbonded long fibers a 21 enter the mechanical drafting device D21, the drafting rollers D21 horizontally move to the same vertical line, so that the drafting rollers D21, D21 and D21 are longitudinally arranged in a longitudinal row and positioned below the position of the side-blowing cold air C21, the coarse two-component spunbonded long fibers a 21 are wound on the drafting rollers D21, D21 and D21, the rotating speed of the drafting rollers D21 close to the spinning device B21 is sequentially lower than that VD of a spinneret plate D21 is less than VD21, namely VD21 is less than VD1 times VD21 of a spinneret plate.
(3) After mechanical drafting, the formed two-component spun-bonded long fiber is subjected to side-blowing hot air E1 through a hot air crimping device E, so that the two-component spun-bonded long fiber is crimped in a free state due to different heat shrinkage rates of two resins (polyethylene and polypropylene), wherein the included angle α between the direction of the side-blowing hot air E1 and the longitudinal direction is 10 degrees, and the hot air temperature of the side-blowing hot air E1 is 60 degrees.
(4) The two-component spun-bonded long fiber is crimped by hot air to form a spun-bonded long fiber b1 with the crimped two-component spun-bonded long fiber, the spun-bonded long fiber is swung by a swinging and lapping device and is uniformly laid on a running web forming curtain F1 to form a web, in the embodiment, the web forming device G adopts a hot air oven G1, the web passes through a hot air oven G1, the low-melting-point resin on the lower surface of the two-component spun-bonded long fiber under the action of hot air is melted, so that the fibers are mutually adhered and are consolidated into a web, the web is then slit and lapped by a slitting and rolling device H to form the spun-bonded non-woven fabric, the spun-bonded long fiber b1 of the spun-bonded non-woven fabric is consolidated into a web through the mutual adhesion among the surfaces of the fibers, the long fiber spun-bonded b1 contains, the difference between the melting point of the low-melting-point resin polyethylene and the melting point of the high-melting-point resin polypropylene is not less than 20 ℃.
After the scheme is adopted, the fiber drafting adopts mechanical drafting, and the mechanical drafting device adopts the drafting roller D21 capable of moving horizontally, so that the thick two-component spunbonded long fiber a1 is easy to wind on the drafting rollers D11, D21 and D31, the thick two-component spunbonded long fiber a1 is formed into a two-component spunbonded long fiber with small titer through the difference of the rotating speeds among the drafting rollers D11, D21 and D31, meanwhile, the cooled thick two-component spunbonded long fiber a1 is subjected to mechanical drafting so that large internal stress can be generated inside the fiber, and the fiber is beneficial to curling after being heated in the subsequent hot air curling process. After mechanical drafting, the double-component fibers in the spun-bonded long fibers are curled by side-blowing hot air E1 in a fiber free state, so that curling is facilitated, and the adhesion of the surfaces of the fibers is prevented by controlling the temperature of the hot air, thereby influencing the curling of the double-component fibers.
Example 2
As shown in fig. 5, a method for manufacturing spunbonded nonwoven fabric using the apparatus for manufacturing spunbonded nonwoven fabric of the present invention includes the steps of:
(1) the method comprises the steps of extruding high-temperature melt from low-melting-point resin polyethylene and high-melting-point polypropylene resin with the melting point difference of more than or equal to 20 ℃ through hot-melting extrusion devices A2 and A2' respectively, enabling the high-temperature melt to enter a spinning device B, changing the high-temperature melt into melt trickle in the spinning device B, enabling the melt trickle to be sprayed out through a spinneret plate B2 of the spinning device B, and cooling the melt trickle through side-blown cold air C2 to form a rough spun viscose long fiber a2, wherein the rough spun viscose long fiber a2 contains rough two-component spun viscose long fibers and rough single-component spun viscose long fibers of which the fiber surfaces are.
(2) The formed roving viscose long fibers a2 enter a mechanical drafting device D2 to mechanically stretch the roving viscose long fibers a2 to form spunbond long fibers, the spunbond long fibers comprise two-component spunbond long fibers and one-component spunbond long fibers, the number percentage of the two-component spunbond long fibers to the spunbond long fibers is 60%, and the one-component spunbond long fibers are uniformly distributed in the two-component spunbond long fibers. The mechanical drafting device D2 is positioned below the position of the side-blown cold air C2, 5 drafting rollers D12, D22, D32, D42 and D52 are arranged, before the slubbed long viscose fiber a2 enters the mechanical drafting device D2, the drafting rollers D12, D32, D52, D22 and D42 are longitudinally staggered in two groups at two sides below the position of the side-blown cold air C42, after the slubbed long viscose fiber a 42 enters the mechanical drafting device D42, the drafting rollers D42, D42 and D42 are horizontally moved to the same vertical line, so that the slubbed long viscose fiber a is longitudinally arranged in a longitudinal row by the drafting rollers D42, D42 and is positioned below the position of the side-blown cold air C42, the slubbed long viscose fiber a is wound on the drafting rollers D42, D42 and VD is less than VD of a spinneret plate, the rotating speed of the spinneret plate is less than VD 72, and the VD of the rotating speed of the drafting roller is less than the VD of the rotating speed of the spinneret plate of the drafting roller is less than the VD 72, the draft roller D52 has a heating device.
(3) After the formed spun-bonded long fiber is mechanically drafted, the two-component spun-bonded long fiber in the spun-bonded long fiber is curled in a free state due to different thermal shrinkage rates of two resins (polyethylene and polypropylene) through side-blown hot air E2, wherein the included angle between the side-blown hot air E2 and the longitudinal direction α is 20 degrees, and the temperature of the hot air is 110 degrees.
(4) The double-component spun-bonded long fibers in the spun-bonded long fibers are curled by hot air to form spun-bonded long fibers b2 containing the curled double-component spun-bonded long fibers, the spun-bonded long fibers are evenly laid on a running web forming curtain F2 through a swing-wire lapping device to form a web, in the embodiment, a hot air oven G of the web forming device adopts a pair of mutually meshed hot rollers G2 ', the web passes through a pair of mutually meshed hot rollers G2 ' of the web forming device G, the spun-bonded long fibers b2 are completely melted in a rolling point area of a hot roller G2 ' under the action of the hot roller G2 ' to form hot rolling points, the hot rolling points are used for consolidation of the web, the double-component spun-bonded fibers in the spun-bonded long fibers b2 are used for melting the surfaces of the fibers at the temperature of the hot roller G2 ', the fibers are also mutually consolidated together, and then are cut and rolled by a slitting and rolling device, the spunbond long fiber b2 of the spunbond non-woven fabric is consolidated into a net by the mutual adhesion between the surfaces of two components of the spunbond long fiber b2, the spunbond long fiber b2 contains two components of spunbond long fibers which are composed of high-melting-point resin polypropylene and low-melting-point resin polyethylene, the fiber surface of the two components of spunbond long fibers contains low-melting-point resin polyethylene, the difference between the melting point of the low-melting-point resin polyethylene and the melting point of the high-melting-point resin polypropylene is not less than 20 ℃, and the quantity percentage of the two components of spunbond long fibers and the spunbond long fiber b2 is.
After the scheme is adopted, the net forming device is a pair of mutually meshed hot rollers G2 ', the two-component spun-bonded fiber in the spun-bonded long fiber b2 can melt the surface of the fiber at the hot temperature of the hot roller G2', the fiber is mutually bonded with the fiber, the fiber web can also be completely melted to form a hot rolling point in the rolling point area of the hot roller G2 'under the action of the hot roller G2', and the hot rolling point is used for consolidation net forming, so that the mechanical property of the spun-bonded non-woven fabric is improved, and the spun-bonded non-woven fabric is more favorable for manufacturing and production of sanitary finished products. In addition, draft roller D52 has heating device for the fibre forms the curl more easily after the fibre heats after drawing, and adopts the utility model discloses a spunbonded nonwoven that this kind of manufacture equipment and manufacturing method formed because the bicomponent fiber among the spunbonded long fiber b2 has formed the curl before the pendulum silk forms the fibre web, consolidates into spunbonded nonwoven after, and the bonding point between the fibre is less, has both increased spunbonded nonwoven's compliance and has increased its fluffiness.
Example 3
As shown in fig. 6, a method for manufacturing spunbonded nonwoven fabric using the apparatus for manufacturing spunbonded nonwoven fabric of the present invention includes the steps of:
(1) the polyethylene resin and the polyester resin with the melting point difference of more than or equal to 20 ℃ respectively extrude high-temperature melt through hot melting extrusion devices A3 and A3' and enter a spinning device B, the high-temperature melt is changed into melt trickle in the spinning device B, then the melt trickle is sprayed out through a spinneret plate B3 of the spinning device B, and a rough spun viscose long fiber A3 is formed after side-blowing cold air C3 is cooled, wherein the rough spun viscose long fiber A3 contains rough two-component spun viscose long fibers and rough single-component spun viscose long fibers of which the fiber surfaces are low-melting-point resins.
(2) The formed roving viscose long fiber a3 enters a mechanical drafting device D3 to mechanically stretch the roving viscose long fiber a3 to form a viscose long fiber, wherein the viscose long fiber comprises two-component viscose long fibers and one-component viscose long fibers, the number percentage of the two-component viscose long fibers to the viscose long fibers is 30%, and the one-component viscose long fibers are uniformly distributed in the two-component viscose long fibers. The mechanical drafting device D3 is positioned right below the position of a side-blowing cold air C3, 5 drafting rollers D13, D23, D33, D43 and D53 are arranged, before the slubbed viscose fiber a3 enters the mechanical drafting device D3, the drafting rollers D13, D33, D53, D23 and D43 are longitudinally staggered in two groups at two sides below the position of the side-blowing cold air C3, after the slubbed viscose fiber a3 enters the mechanical drafting device D3, the drafting rollers D23 and D23 are horizontally moved to the same vertical line, so that the drafting rollers D23, D23 are longitudinally arranged in a longitudinal column and positioned below the position of the side-blowing cold air C23, the slubbed viscose fiber a 23 is wound on the drafting rollers D23, D23 and D23, the rotating speed of the drafting rollers close to a spinneret plate B is less than the VD3, and the rotating speed of the drafting rollers is less than VD 72, the VD3, and the rotating speed of the drafting rollers is less than VD 72 of the rotating speed of the spinneret plate VD of the drafting rollers D23, the drafting rollers VD 72 D23, D33, D43 and D53 all have heating devices.
(3) After the formed spun-bonded long fiber is mechanically drafted, the two-component spun-bonded long fiber in the spun-bonded long fiber is curled in a free state due to different thermal shrinkage rates of two resins (polyethylene and polyester) through side-blown hot air E3, wherein an included angle α formed between the side-blown hot air E3 and the longitudinal direction is 30 degrees, and the temperature of the hot air is 120 ℃.
(4) In the embodiment, the web forming device G adopts a hot air oven G3 and a pair of mutually meshed hot rolls G3 ', the web passes through a hot air oven G3 and a pair of mutually meshed hot rolls G3' of the web forming device G, is solidified into a web, and is cut and wound by a cutting and winding device H to form the spunbonded non-woven fabric, the spunbonded long fibers of the spunbonded non-woven fabric are solidified into a web by mutual adhesion between the surfaces of the two-component spunbonded long fibers in the spunbonded long fiber b3, the spunbonded long fiber b3 contains the two-component spunbonded long fibers which are composed of high-melting-point resin polyester and low-melting-point resin polyethylene and the surfaces of the fibers of which contain low-melting-point resin polyethylene, the difference between the melting point of the low-melting-point resin polyethylene and the melting point of the high-melting-point resin polyester is more than or equal to 20 ℃, and the number percentage of the bicomponent spun-bonded long fiber to the spun-bonded long fiber b3 is 30%.
After the scheme is adopted, the net forming device G comprises the hot air oven G3 and the pair of mutually meshed hot rollers G3 ', so that the two-component fibers in the fiber web can be fully melted in the hot air oven G3, the fibers are mutually adhered, and then hot rolling points are formed on the fiber web through the hot rollers G3', so that the fiber web can be more firmly combined together, the mechanical property of the spun-bonded non-woven fabric is further improved, the machine operation is facilitated during application, and meanwhile, the mechanical property of the fiber web can be ensured even if the content of the two-component spun-bonded long fibers in the spun-bonded non-woven fabric is lower.
Example 4
As shown in fig. 7, a method for manufacturing spunbonded nonwoven fabric using the apparatus for manufacturing spunbonded nonwoven fabric of the present invention includes the steps of:
(1) the polyethylene resin and the polyester resin with the melting point difference of more than or equal to 20 ℃ respectively extrude high-temperature melt through hot melting extrusion devices A4 and A4' and enter a spinning device B, the high-temperature melt is changed into melt trickle in the spinning device B, then the melt trickle is sprayed out through a spinneret plate B4 of the spinning device B, and a rough spun viscose long fiber a4 is formed after side-blowing cold air C4 is cooled, wherein the rough spun viscose long fiber a4 contains rough two-component spun viscose long fibers and rough single-component spun viscose long fibers of which the fiber surfaces are low-melting-point resins.
(2) The formed roving viscose long fibers a4 enter a mechanical drafting device D4 to mechanically stretch the roving viscose long fibers a4 to form spunbond long fibers, wherein the spunbond long fibers comprise two-component spunbond long fibers and one-component spunbond long fibers, the number percentage of the two-component spunbond long fibers to the spunbond long fibers is 70%, and the one-component spunbond long fibers are uniformly distributed in the two-component spunbond long fibers. The mechanical drafting device D4 is positioned below the position of the side-blown cold air C4, 6 drafting rollers D14, D24, D34, D44 and D44 are arranged, before the slubbed long viscose fiber a 44 enters the mechanical drafting device D44, the drafting rollers D44, D44 and D44 are longitudinally staggered in two groups at two sides below the position of the side-blown cold air C44, after the slubbed long viscose fiber a 44 enters the mechanical drafting device D44, the drafting rollers D44, D44 and D44 move horizontally to the same vertical line, so that the drafting rollers D44, D44 and D44 are longitudinally arranged in a column, positioned below the position of the side-blown cold air C44, the slubbed long viscose fiber a is wound on a spinneret plate D44, D44 is less than VD 72, and VD < D44, the rotating speed of the spinneret plate is less than VD of the drafting roller is less than VD of the rotating speed of the spinneret plate B of the drafting roller is less than VD44, and VD64 is 5 times VD 14.
(3) After mechanical drafting, the formed spunbond long fibers are curled by side-blown hot air E4 under the condition that two components of the spunbond long fibers in the spunbond long fibers are in a free state due to different heat shrinkage rates of two resins (polyethylene and polypropylene), wherein the included angle between the side-blown hot air E41 and the longitudinal direction is α degrees, the hot air temperature is 75 degrees, the two components of the spunbond long fibers are further subjected to hot air curling under the action of side-blown hot air E42, wherein the included angle between the side-blown hot air E42 and the longitudinal direction is α degrees, the hot air temperature is 130 degrees, the spunbond long fibers b4 containing the curled two components of the spunbond long fibers are formed, the spunbond long fibers b are uniformly laid on a running web forming curtain F4 through a swinging wire laying device to form a web, in the embodiment, the spunbond long fibers G4 used in the hot air oven G4 used in the spunbond long fiber laying device G, the web is consolidated into a web through a slitting and is wound through a winding device H to form a non-woven fabric, the non-woven fabric b4 is bonded on the surface of the spunbond long fibers b 7 of the non-woven fabric through a low melting point polyethylene resin, the low melting point polyethylene resin is greater than or equal to 70 degrees, and the melting point of the low melting point of the polyethylene resin contained in the low melting point of the polyethylene resin, the low melting point of the low melting point.
After the scheme is adopted, under the action of the side-blown hot air E41, due to the fact that two kinds of resin of the two-component fibers have different heat shrinkage forces to form fiber rolls, under the action of the side-blown hot air E42, macromolecules in the fibers generate heat movement, internal stress caused by curling of the fibers is further eliminated, and the curling quality of the fibers is stable, so that the two-component spunbond long fibers can be fully curled in a free state and tend to a stable curling state after passing through the two times of side-blown hot air E41 and E42.
The technical content and technical features of the present invention have been disclosed as above, and the constituent parts of the present invention are not limited to the above, and those skilled in the art may make various replacements and modifications based on the disclosure of the present invention without departing from the spirit of the present invention. Therefore, the protection scope of the present invention should not be limited to the embodiments disclosed, but should include various alternatives and modifications without departing from the invention, and be covered by the claims.
Claims (8)
1. The utility model provides a manufacture equipment of spunbonded nonwoven, contains interconnect's hot melt extrusion device, spinning equipment, side blow cold wind device, mechanical draft device, hot-blast crimping device in proper order, pendulum silk lapping device, net forming device and cut the coiling mechanism, its characterized in that: the hot-melting extrusion device is at least composed of two groups and is connected with the spinning device; the side cold air blowing device is positioned below a spinneret plate of the spinning device; the mechanical drafting device is positioned below the side cold air blowing device and is provided with at least 3 drafting rollers, the drafting rollers are longitudinally arranged on two sides below the side cold air blowing device in a staggered mode in two groups and can horizontally move to the same vertical line, and the rotating speed of the drafting rollers close to the spinneret plate is sequentially smaller than that of the drafting rollers far away from the spinneret plate; the hot air crimping devices are positioned on two sides right below the mechanical drafting device, and the included angle between the side-blown hot air and the longitudinal direction is 5-90 degrees.
2. The apparatus for manufacturing a spunbonded nonwoven fabric according to claim 1, characterized in that: at least one of the drawing rollers has a heating device.
3. The apparatus for manufacturing a spunbonded nonwoven fabric according to claim 1, characterized in that: the net forming device is a hot air oven, a hot roller or the combination of the hot air oven and the hot roller.
4. The apparatus for manufacturing a spunbonded nonwoven fabric according to claim 1, characterized in that: the spinneret plate is provided with two-component spinneret orifices which are respectively in a sheath-core type, a tangerine-petal type or a parallel type.
5. The apparatus for manufacturing a spunbonded nonwoven fabric according to claim 1, characterized in that: the spinneret plate also comprises single-component spinneret orifices which are uniformly distributed among the double-component spinneret orifices.
6. An apparatus for manufacturing a spunbonded nonwoven fabric as claimed in claim 4, characterized in that: the number ratio of the bicomponent spinneret orifices to the total spinneret orifices is more than 20%.
7. The apparatus for manufacturing a spunbonded nonwoven fabric according to claim 1, characterized in that: the ratio of the rotating speed of the last drafting roller far away from the spinneret plate to the rotating speed of the first drafting roller close to the spinneret plate is more than or equal to 1.5.
8. The apparatus for manufacturing a spunbonded nonwoven fabric according to claim 1, characterized in that: the ratio of the rotating speed of the last drafting roller far away from the spinneret plate to the rotating speed of the first drafting roller close to the spinneret plate is 2-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920618759.4U CN210262230U (en) | 2019-04-30 | 2019-04-30 | Manufacturing equipment of spunbonded nonwoven fabric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920618759.4U CN210262230U (en) | 2019-04-30 | 2019-04-30 | Manufacturing equipment of spunbonded nonwoven fabric |
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| CN210262230U true CN210262230U (en) | 2020-04-07 |
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| CN201920618759.4U Withdrawn - After Issue CN210262230U (en) | 2019-04-30 | 2019-04-30 | Manufacturing equipment of spunbonded nonwoven fabric |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093719A (en) * | 2019-04-30 | 2019-08-06 | 厦门延江新材料股份有限公司 | A kind of manufacturing equipment and its manufacturing method of spun-bonded non-woven fabrics |
| CN112301552A (en) * | 2020-10-29 | 2021-02-02 | 东华大学 | Polyolefin/polyester bicomponent fiber and preparation method of spun-bonded non-woven fabric thereof |
| CN113417019A (en) * | 2021-07-09 | 2021-09-21 | 天津工业大学 | Splitting type crimped spun-bonded filament and preparation method and application thereof |
-
2019
- 2019-04-30 CN CN201920618759.4U patent/CN210262230U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093719A (en) * | 2019-04-30 | 2019-08-06 | 厦门延江新材料股份有限公司 | A kind of manufacturing equipment and its manufacturing method of spun-bonded non-woven fabrics |
| CN110093719B (en) * | 2019-04-30 | 2024-04-12 | 厦门延江新材料股份有限公司 | Equipment and method for manufacturing spun-bonded non-woven fabric |
| CN112301552A (en) * | 2020-10-29 | 2021-02-02 | 东华大学 | Polyolefin/polyester bicomponent fiber and preparation method of spun-bonded non-woven fabric thereof |
| CN113417019A (en) * | 2021-07-09 | 2021-09-21 | 天津工业大学 | Splitting type crimped spun-bonded filament and preparation method and application thereof |
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