CN103173935A - Device and method for preparing double-component composite spunbonded non-woven fabric - Google Patents
Device and method for preparing double-component composite spunbonded non-woven fabric Download PDFInfo
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- CN103173935A CN103173935A CN2013100998051A CN201310099805A CN103173935A CN 103173935 A CN103173935 A CN 103173935A CN 2013100998051 A CN2013100998051 A CN 2013100998051A CN 201310099805 A CN201310099805 A CN 201310099805A CN 103173935 A CN103173935 A CN 103173935A
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Abstract
The invention discloses a device and a method for preparing double-component composite spunbonded non-woven fabric. The device for preparing the double-component composite spunbonded non-woven fabric comprises two sets of spinning chipping processing devices, two distribution pipes, a spinning tank body, a cooling blast device, a draw machine, a yarn swinging machine, a lapper and a hot mill. Each spinning chip processing device is formed by a bin, a screw extruder and a filter in a sequentially connected mode. The spinning chipping processing devices are respectively connected with the spinning tank body through the distribution pipes. The spinning tank body, the cooling blast device, the draw machine, the yarn swinging machine, the lapper and the hot mill are connected in sequence. The distribution pipes are externally arranged and are moved out of the tank body, the temperature of the distribution pipes is set independently, and therefore standing time is very short when two kinds of melts enter the spinning tank body and a spinning assembly. A large temperature difference can be kept between the melts and the device, and great significance is brought to normal sensitive melt spinning.
Description
Technical field
The present invention relates to a kind of devices and methods therefor for preparing non-weaving cloth in field of textiles, relate in particular to a kind of devices and methods therefor for preparing two component composite spunbonding process non-weaving cloths.
Background technology
In weaving synthetic fiber field, bicomponent fibers claims again composite fibre, it is with the melt of two kinds of fiber-forming polymers or concentrated solution, utilize the difference of component, proportioning, viscosity or kind, input respectively same filament spinning component, the suitable position in assembly converges, ejection in same spinneret orifice and form a fiber, so just can exist simultaneously the condensate of two kinds on the fiber of same endless, be called bicomponent fibers.Common version has: core-skin type, parallel type, fabric of island-in-sea type, tangerine lobe type.
Bicomponent fibers is more with wet production, for example can make the acrylic composite fiber of permanent curl.The wet spinning forming requirements is made spinning solution, then stoste after filtration, after deaeration, extrude by measuring pump and from spinning head, under the effect of coagulating bath, carries out suitable spray silk and stretches and form as-spun fibre.
The technology that Bi-Component Spunbonded Nonwoven is the notional molten spinning bi-component of chemical fibre composite spinning technology to be become net, become the cloth technology to combine with non-weaving cloth.Therefore, two screw extruders must be arranged on equipment, with two kinds of different material productions, should there be two kinds of components in the single fiber cross section.
Summary of the invention
One of technical problem to be solved by this invention is to provide a kind of device for preparing two component composite spunbonding process non-weaving cloths.This device is applicable to the spinning chips such as polyester (being called for short PET), various modified poly ester, polyamide, PLA, polyphenylene sulfide, polyurethane are carried out drying, extruding, spray silk, synthesizing two-component fiber, the two component composite spunbonding process non-weaving cloths of final preparation.
Two of technical problem to be solved by this invention is to provide a kind of method for preparing two component composite spunbonding process non-weaving cloths, adopts said apparatus to carry out.
Technical problem of the present invention is achieved through the following technical solutions:
A kind of device for preparing two component composite spunbonding process non-weaving cloths comprises two cover spinning chips treating apparatus, two distributing pipes, a spinning manifold, a cooling quench device, a drawing machine, a yarn swaying machine, a lapper and a hot-rolling mill;
Described spinning chips treating apparatus is formed by connecting by feed bin, screw extruder and filter successively;
Described spinning chips treating apparatus is connected with spinning manifold by distributing pipe respectively;
Spinning manifold, cooling quench device, drawing machine, yarn swaying machine, lapper are connected with hot-rolling mill and are connected.
Preferably,
Described screw extruder is single screw extrusion machine.
Described distributing pipe adopts branch-type configuration or emanant configuration.
Described distributing pipe must equate to each spinning part, the length that each melt pipe reaches each spinning station the melt uniform distribution, and the time of staying equates, melt heating temperature uniformity.Described distributing pipe is the fexible unit of the industry, for example is documented in " Spunbonded Nonwovens " (China Textiles Press published in 2003).
Measuring pump and filament spinning component are installed in described spinning manifold.
Described cooling quench device is single face cross air blowing device or double-face side blowing device, optimally, selects the single face cross air blowing device.
Described drawing machine is tubular drafting machine, narrow slit drawing machine or width seam drawing machine.
A kind of method for preparing two component composite spunbonding process non-weaving cloths adopts the device of the two component composite spunbonding process non-weaving cloths of aforesaid preparation to be prepared, and specifically comprises the steps:
The first component slices that is stored in the first feed bin is formed melt through the first screw extruder extruding, and melt filters by the first filter, enters the first distributing pipe and distributes;
The second component section that is stored in the second feed bin is formed melt through the second screw extruder extruding, and melt filters by the second filter, enters the second distributing pipe and distributes;
The first component melt after the first distributing pipe and the distribution of the second distributing pipe and second component melt enter spinning manifold ejection melt thread simultaneously respectively, the melt thread solidifies the formation strand through cooling quench device cooling quench again, strand is after the drawing machine drawing-off, again through the yarn swaying machine pendulum wire, lapping on lapper, through the hot-rolling mill hot rolling, can make described pair of component composite spunbonding process non-weaving cloth.
The outstanding substantive distinguishing features of technical solution of the present invention and significant progressive following several respects that are mainly reflected in:
Can pass through the product of different material, different composite mode, the various performances of different adhesive bonding method production.The spun-bond process technology mainly comprises spinning, becomes net, is bonded into the cloth three parts, it can be with different materials such as the macromolecular material of melt spinning such as polyethylene, polypropylene fibre, polyamide fibre, terylene, with different complex methods such as core-skin, side by side, tangerine lobe, island etc. form composite fibre and the fibre web of multiple different performance; Because its different materials hot property is different, therefore except traditional hot rolling, acupuncture, water thorn, hot blast technique also is applied on one-tenth cloth method.Make the product of spunbond cloth become rich and varied, purposes is more and more wider.It is 130 ℃ as the PE fusing point, the PP fusing point is 165 ℃, the composite fiber web of two kinds of raw material productions can be made non-weaving cloth by special hot blast adhesion equipment, softness and the comfortableness of product are fabulous, the compound short fiber of this class formation, replace homofil fully, monopolized high-grade hygienic material market.
Compare with similar short fiber product, intensity is higher, does not add spinning oil in production, and product is much cleaner.As everyone knows, the intensity of staple fibre non-weaving cloth, particularly transverse strength are high not as spun-bond process, affect wearability.The finish that must add in the staple fibre production process is from composition, manufacturing process to the adverse effect that all can produce storage period the product sanitation performance; And spun-bond process production process flow process is short, is all to produce under the condition of high temperature from the spinning to the hot rolling, therebetween without any additive.Thereby can guarantee product health more.
Coloured or functional product can under the prerequisite that does not reduce effect, be saved cost.Masterbatch and the modifier price such as antistatic, anti-aging, fire-retardant are higher, are generally the 4-5 of polyethylene, polypropylene fibre or terylene chips price doubly, although the ratio that adds in product is not high, the people is larger to cost impact.Because spun-bond process product range of application is more and more wider; coloured, Functional Requirement also gets more and more; Bi-Component Spunbonded technique can adopt cortex to add Masterbatch or modifier; the method that sandwich layer does not add; reach equally the requirement of coloured or functional product; and addition only needs 50% left and right of one pack system spun-bond process, therefore can greatly reduce production costs.
Also can produce the spunbond product of common PP or PET.The bi-component production line can add homogeneous raw material by two screw rods, perhaps removes compound distribution plate and can produce common one pack system PP or the spunbond product of PET when assembly is installed.
Compare with the spunbond line of one pack system, production cost increases few added value of product to be increased many.The bicomponent spunbond line is compared with the spunbond line of one pack system, and the difference of same size equipment is that a large screw rod has changed two small screws into, and the one pack system casing has changed composite box into, and miscellaneous equipment is all the same; Calculate on raw material, compare with the spunbond cloth of PP with the PE/PP joint product, PE, PP section price is substantially approaching, and production cost increases few; And present external bi-component product than one pack system expensive at least a times, the home sale valency can increase 30-50%, so added value of product increases manyly, has economic benefit preferably.
The bi-component melt is to be made of two kinds of different polymer.Two kinds of melting point polymer differences, spinning temperature are also different.Be subjected to same temperature to affect (general spin manifold temperature is pressed the demanding polymer of the high spinning temperature of fusing point and set) in same casing, relatively low polymer spinning technological temperature can't be held, and affects spinning quality.The present invention adopts distributing pipe external especially, and distributing pipe is shifted out casing, and each distributing pipe temperature arranges separately, and such two kinds of melts enter in spinning manifold and filament spinning component, the time of staying very short (basic less than half traditional time of staying).Can be for keeping the larger temperature difference between melt and equipment, the more sensitive melt spinning of this contrast is normally extremely meaningful.
Description of drawings
Fig. 1 is the apparatus structure schematic diagram that the present invention prepares two component composite spunbonding process non-weaving cloths.
Wherein, the Reference numeral in each figure is specially:
1a the first feed bin
1b the second feed bin
2a the first screw extruder
2b the second screw extruder
3a the first filter
3b the second filter
4a the first distributing pipe
4b the second distributing pipe
5 spinning manifolds
6 cooling quench devices
7 drawing machines
8 yarn swaying machines
9 lappers
10 hot-rolling mills
100 first spinning chips treating apparatus
200 second spinning chips treating apparatus
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made more explicit defining.
Embodiment 1
The present invention as shown in Figure 1 prepares the apparatus structure schematic diagram of two component composite spunbonding process non-weaving cloths.
The first spinning chips treating apparatus 100 is formed by connecting by the first feed bin 1a, the first screw extruder 2a and the first filter 3a.
The second spinning chips treating apparatus 200 is formed by connecting by the second feed bin 1b, the second screw extruder 2b and the second filter 3b.
The first spinning chips treating apparatus 100 is connected with spinning manifold 5 by the first distributing pipe 4a, and the second spinning chips treating apparatus 200 all is connected with spinning manifold 5 by the second distributing pipe 4b.
Spinning manifold 5, cooling quench device 6, drawing machine 7, yarn swaying machine 8, lapper 9 are connected with hot-rolling mill successively and are connected.
Described the first screw extruder 2a, the second screw extruder 2b are single screw extrusion machine.
Described the first filter 3a, the second filter 3b are cylindrical filter.
Described the first distributing pipe 4a, the second distributing pipe 4b all adopt the branch-type configuration.
In described spinning manifold 5, measuring pump and filament spinning component are installed.
Described cooling quench device 6 is the single face cross air blowing device.
Described drawing machine 7 is the tubular drafting machine.
Embodiment 2
The manufacture method of the composite spunbonding process non-weaving cloth of PE/PP core-sheath composite structure
Cortical material PE selects low-pressure high-density polyethylene, relative molecular weight 2.5 ten thousand-1,000,000, density 0.95 * 10
3Kg/m
3
Core material PP, specific targets see the following form 1.
Table 1:PP chipping qualities index
| Project | Unit | Index |
| Fusing point | ℃ | 164 |
| Density | g/cm 3 | 0.91 |
| Melt index | g/10min | ≥25 |
| Molecular weight distributing index | ? | ＜4 |
| Isotacticity | ％ | ＞96 |
| Ash content | ％ | ＜0.025 |
| Contain wet | ％ | ＜0.05 |
Add the first screw extruder 2a extruding to form melt the PE section that is stored in the drying of the first feed bin 1a.The PE melt enters the first distributing pipe 4a and distributes by the first filter 3a impurity screening.The first distributing pipe 4a is to each spinning part with the uniform distribution of PE melt.The duct length that it requires melt to arrive each spinning station should equate, melt residence time equates, melt is heated evenly.
Add the second screw extruder 2b extruding to form melt the PP section that is stored in the drying of the second feed bin 1b.The PP melt enters the second distributing pipe 4b and distributes by the second filter 3b impurity screening.The second distributing pipe 4b is to each spinning part with the uniform distribution of PP melt.The duct length that it requires melt to arrive each spinning station should equate, melt residence time equates, melt is heated evenly.
Wherein, described the first screw extruder 2a, the second screw extruder 2b are single screw extrusion machine.Described the first filter 3a, the second filter 3b are cylindrical filter.Described the first distributing pipe 4a, the second distributing pipe 4b all adopt the branch-type configuration.
The bi-component melt is to be made of two kinds of different polymer P E and PP.Two kinds of polymer P E are different with the PP fusing point, and spinning temperature is also different.Affected by same temperature in same casing, general spin manifold temperature is pressed the demanding polymer of the high spinning temperature of fusing point and is set, and relatively low polymer spinning technological temperature can't be held, and affects spinning quality.In the present invention, distributing pipe is shifted out spinning manifold, the temperature of the first distributing pipe 4a and the second distributing pipe 4b arranges separately.Such two kinds of melt PE and PP enter in spinning manifold, and the time of staying is very short, and be basic less than half traditional time of staying.Can be for keeping the larger temperature difference between melt and equipment, the more sensitive melt spinning of this contrast is normally extremely meaningful.
PE melt after the first distributing pipe 4a distributes and the PP melt after the second distributing pipe 4b distributes, supply melt by the measuring pump in spinning manifold 5 to composite spining module, filament spinning component will be quantitatively to be that two kinds of composition PE of 4:6 and PP melt distribute compound for the mass ratio of PE and PP, ejection melt thread.
The melt thread solidifies the formation strand through cooling quench device 6 cooling quenches again, it is that PE, sandwich layer are the composite construction fiber of PP that the structure of the fiber of this strand is cortex, strand is after drawing machine 7 drawing-offs, again through yarn swaying machine 8 pendulum wires, lapping on lapper 9, tow is layered on netted conveyer belt even dividing fluffyly, again through hot-rolling mill 10 hot rollings, hot-rolled temperature rests in 105-150 ℃, hot rolling pressure is controlled at 50-70bar, can make two component composite spunbonding process non-weaving cloths of PE/PP core-sheath composite structure.
Wherein, described cooling quench device 6 is the single face cross air blowing device.Described drawing machine 7 is the tubular drafting machine.
The first screw extruder 2a temperature control table unit: ℃
| One district | 2nd district | 3rd district | 4th district | 5th district |
| 190-210 | 210-230 | 220-240 | 250-270 | 570-270 |
The second screw extruder 2b temperature control table unit: ℃
| One district | 2nd district | 3rd district | 4th district | 5th district | 6th district |
| 190-200 | 200-205 | 210-215 | 210-215 | 220-225 | 220-225 |
The first filter 3a is identical with the temperature of the first distributing pipe 4a, is controlled at 240-270 ℃; The second filter 3b is identical with the temperature of the second distributing pipe 4b, is controlled at 220-230 ℃; The temperature of spinning manifold is identical with the temperature of the first filter 3a and the first distributing pipe 4a, is controlled at 240-270 ℃.
In this example, the mass ratio that can also prepare PE and PP is (2-5): two component composite spunbonding process non-weaving cloths of PE/PP core-sheath composite structure (5-8).
Embodiment 3
The manufacture method of the composite spunbonding process non-weaving cloth of PE/PET core-sheath composite structure
Add the first screw extruder 2a extruding to form melt the PE section that is stored in the drying of the first feed bin 1a.The PE melt enters the first distributing pipe 4a and distributes by the first filter 3a impurity screening.The first distributing pipe 4a is to each spinning part with the uniform distribution of PE melt.The duct length that it requires melt to arrive each spinning station should equate, melt residence time equates, melt is heated evenly.
Add the second screw extruder 2b extruding to form melt the PET section that is stored in the drying of the second feed bin 1b.The PET melt enters the second distributing pipe 4b and distributes by the second filter 3b impurity screening.The second distributing pipe 4b is to each spinning part with the uniform distribution of PET melt.The duct length that it requires melt to arrive each spinning station should equate, melt residence time equates, melt is heated evenly.
Wherein, described the first screw extruder 2a, the second screw extruder 2b are single screw extrusion machine.Described the first filter 3a, the second filter 3b are cylindrical filter.Described the first distributing pipe 4a, the second distributing pipe 4b all adopt the branch-type configuration.
The bi-component melt is to be made of two kinds of different polymer P E and PET.Two kinds of polymer P E are different with the PET fusing point, and spinning temperature is also different.Affected by same temperature in same casing, general spin manifold temperature is pressed the demanding polymer of the high spinning temperature of fusing point and is set, and relatively low polymer spinning technological temperature can't be held, and affects spinning quality.In the present invention, distributing pipe is shifted out spinning manifold, the temperature of the first distributing pipe 4a and the second distributing pipe 4b arranges separately.Such two kinds of melt PE and PET enter in spinning manifold, and the time of staying is very short, and be basic less than half traditional time of staying.Can be for keeping the larger temperature difference between melt and equipment, the more sensitive melt spinning of this contrast is normally extremely meaningful.
PE melt after the first distributing pipe 4a distributes and the PET melt after the second distributing pipe 4b distributes, supply melt by the measuring pump in spinning manifold 5 to composite spining module, filament spinning component will be quantitatively to be that two kinds of composition PE of 4:6 and PET melt distribute compound for the mass ratio of PE and PET, ejection melt thread.
The melt thread solidifies the formation strand through cooling quench device 6 cooling quenches again, it is that PE, sandwich layer are the composite construction fiber of PET that the structure of the fiber of this strand is cortex, strand is after drawing machine 7 drawing-offs, again through yarn swaying machine 8 pendulum wires, lapping on lapper 9, tow is layered on netted conveyer belt even dividing fluffyly, again through hot-rolling mill 10 hot rollings, hot-rolled temperature rests in 105-150 ℃, hot rolling pressure is controlled at 50-70bar, can make two component composite spunbonding process non-weaving cloths of PE/PET core-sheath composite structure.
Wherein, described cooling quench device 6 is the single face cross air blowing device.Described drawing machine 7 is the tubular drafting machine.
The first screw extruder 2a temperature control table unit: ℃
| One district | 2nd district | 3rd district | 4th district | 5th district |
| 210-215 | 230-235 | 240-245 | 245-260 | 245-260 |
The second screw extruder 2b temperature control table unit: ℃
| One district | 2nd district | 3rd district | 4th district | 5th district | 6th district |
| 240-245 | 260-250 | 280-285 | 280-285 | 290-305 | 290-305 |
The first filter 3a is identical with the temperature of the first distributing pipe 4a, is controlled at 245-260 ℃; The second filter 3b is identical with the temperature of the second distributing pipe 4b, is controlled at 290-305 ℃; The temperature of spinning manifold is identical with the temperature of the second filter 3b and the second distributing pipe 4b, is controlled at 290-305 ℃.
Device and method of the present invention can also be produced the composite spunbonding process non-weaving cloth of the core-sheath composite structure of PP/PET, PA/PET, PLA/PET, PLA/PP, COPET/PET etc.
The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; variation or the replacement that can expect without creative work are within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (8)
1. device for preparing two component composite spunbonding process non-weaving cloths is characterized in that:
Comprise two cover spinning chips treating apparatus, two distributing pipes, a spinning manifold, a cooling quench device, a drawing machine, a yarn swaying machine, a lapper and a hot-rolling mill;
Described spinning chips treating apparatus is formed by connecting by feed bin, screw extruder and filter successively;
Described spinning chips treating apparatus is connected with spinning manifold by distributing pipe respectively;
Spinning manifold, cooling quench device, drawing machine, yarn swaying machine, lapper are connected with hot-rolling mill and are connected.
2. the device of the two component composite spunbonding process non-weaving cloths of preparation as claimed in claim 1, it is characterized in that: described screw extruder is single screw extrusion machine.
3. the device of the two component composite spunbonding process non-weaving cloths of preparation as claimed in claim 1, is characterized in that: described distributing pipe employing branch-type configuration or emanant configuration.
4. the device of the two component composite spunbonding process non-weaving cloths of preparation as claimed in claim 1, is characterized in that: measuring pump and filament spinning component are installed in described spinning manifold.
5. the device of the two component composite spunbonding process non-weaving cloths of preparation as claimed in claim 1, it is characterized in that: described cooling quench device is single face cross air blowing device or double-face side blowing device.
6. the device of the two component composite spunbonding process non-weaving cloths of preparation as claimed in claim 6, it is characterized in that: described cooling quench device is the single face cross air blowing device.
7. the device of the two component composite spunbonding process non-weaving cloths of preparation as claimed in claim 1, it is characterized in that: described drawing machine is tubular drafting machine, narrow slit drawing machine or width seam drawing machine.
8. a method for preparing two component composite spunbonding process non-weaving cloths, is characterized in that, comprises the steps:
The first component slices that is stored in the first feed bin is formed melt through the first screw extruder extruding, and melt filters by the first filter, enters the first distributing pipe and distributes;
The second component section that is stored in the second feed bin is formed melt through the second screw extruder extruding, and melt filters by the second filter, enters the second distributing pipe and distributes;
The first component melt after the first distributing pipe and the distribution of the second distributing pipe and second component melt enter spinning manifold ejection melt thread simultaneously respectively, the melt thread solidifies the formation strand through cooling quench device cooling quench again, strand is after the drawing machine drawing-off, again through the yarn swaying machine pendulum wire, lapping on lapper, through the hot-rolling mill hot rolling, can make described pair of component composite spunbonding process non-weaving cloth.
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Address after: 200082 No. 988, Pingliang Road, Shanghai, Yangpu District Co-patentee after: SHANGHAI SYNTHETIC FIBER RESEARCH INSTITUTE CO.,LTD. Patentee after: SHANGHAI TEXTILE RESEARCH INSTITUTE CO.,LTD. Address before: 200082 No. 988, Pingliang Road, Shanghai, Yangpu District Co-patentee before: Shanghai Synthetic Fiber Research Institute Patentee before: Shanghai Textile Research Institute |
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