CN105040155A - Composite monofilament applied to sanitary screen material and preparation method of composite monofilament - Google Patents

Composite monofilament applied to sanitary screen material and preparation method of composite monofilament Download PDF

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Publication number
CN105040155A
CN105040155A CN201510472728.9A CN201510472728A CN105040155A CN 105040155 A CN105040155 A CN 105040155A CN 201510472728 A CN201510472728 A CN 201510472728A CN 105040155 A CN105040155 A CN 105040155A
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core layer
health
composite monofilament
monofilament
center core
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CN105040155B (en
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钱琦渊
邵新
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Wuxi Jin Tong high fiber Limited by Share Ltd
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WUXI JINTONG FIBER CO Ltd
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Abstract

The invention discloses a composite monofilament applied to a sanitary screen material and a preparation method of the composite monofilament, and belongs to the field of composite fiber materials. A rubber layer of the composite monofilament is made of PLA, a core layer of the composite monofilament is made of PA66, low-melting-point LPA66 is added to the rubber layer, and therefore the compatibility of the rubber layer and the core layer is improved, the rubber layer exerts higher bond stress on the core layer, the compactness of the rubber layer and the core layer is enhanced, and the rubber layer is not prone to being disengaged from the core layer; meanwhile, PLA can meet the sanitation requirement of drinking water, and therefore the composite monofilament can be applied to the sanitary screen material, and then the application range of the composite monofilament in the food industry, the medicine industry and other industries is enlarged.

Description

Be applied to composite monofilament of health sieve material and preparation method thereof
Technical field
The present invention relates to a kind of compound fibrous material and preparation method thereof, particularly relate to a kind of health that is applied to and sieve composite monofilament of material and preparation method thereof.
Background technology
Composite monofilament is as a kind of compound fibrous material, the advantages such as its product has that smooth surface, color and luster are gorgeous, waterproof, grease proofing, antiultraviolet, fire-retardant, nice and cool, wear-resisting, long service life, are thus widely used on each products such as outdoor lie fallow article, furniture decoration, beach chair, hammock, curtain, automobile cushion foot pad, doormat, decoration articles for use.But because when preparing composite monofilament, cost is higher, product on production line is single and product quality is not high enough and receive certain restriction.
In order to improve the quality of product, person skilled have devised new method.As " technology of producing PLA microwave radiation shielding fiber by core-skin composite spinning " of Chinese patent (publication number is: CN200810024809.2), the functional melt that this invention adopts section to spin melt and twin-screw production produces the production method of skin-core structural micro-wave screening function PLA fiber by composite box, core-sheath pack spin.Produce with composite spinning method by adopting composite spinning casing.Use conventional equipment, technique is simple, and processing ease is with low cost, is convenient to industrial application; As " a kind of clad structure water treatment composite fibre " of Chinese patent (publication number is: CN202705116U), select Novel cladding structure, its center core layer is profiled filament, it can be used as backing material, and cortex is coated on sandwich layer more closely.
But, the core silk of these patent center core layer above-mentioned is all outsourcing, the center core layer that buying is returned, again by coated for high molecular polymer melting be cortex, two-step method processing, center core layer outsourcing, thus make cost higher, and composite monofilament of the prior art is easily peeled, and does not meet the hygienic requirements of health sieve material.
Summary of the invention
For above-mentioned Problems existing, the invention provides a kind of health that is applied to and sieve composite monofilament of material and preparation method thereof, easily peel cause not meeting the problem of health sieve material requirement to overcome composite monofilament of the prior art, also the problem that composite monofilament cost of the prior art is higher is overcome, thus both reduced the production cost of composite monofilament, in turn enhance the cortex of composite monofilament and the tightness of center core layer, make cortex difficult drop-off, and selection meets hygienic requirements, health sieve material can be applied to, and then expand the range of application of composite monofilament in food pharmaceuticals industry.
To achieve these goals, the technical scheme that the present invention takes is:
Be applied to a composite monofilament for health sieve material, wherein, comprise: material is the center core layer of PA66 and material is the cortex of PLA, the coated described center core layer of described cortex.
The above-mentioned composite monofilament being applied to health sieve material, wherein, be mixed with nano-calcium carbonate in described center core layer, and the addition of described nano-calcium carbonate is 8% ~ 13%.
The above-mentioned composite monofilament being applied to health sieve material, wherein, be mixed with the LPA66 of low melting point in described cortex, and the addition of described LPA66 is 3% ~ 10%.
The above-mentioned composite monofilament being applied to health sieve material, wherein, the filament diameter of described center core layer is 0.05 ~ 3.1mm.
The above-mentioned composite monofilament being applied to health sieve material, wherein, the compound ratio of described center core layer and described cortex is 33 ~ 67:67 ~ 33.
Be applied to a preparation method for the composite monofilament of health sieve material described above, wherein, comprise:
(1) will the PA66 section of nano-calcium carbonate be mixed with, after drying process, screw rod melting, spinning, drawing and setting, ultrasonic cleaning, make center core layer monofilament;
(2) will the PLA section of LPA66 be mixed with, after drying, screw rod melting, make cortex;
(3) by the center core layer monofilament made in step (1) and step (2) and cortex compound, spinning, then carry out water-bath cooling, last coiling and molding makes the composite monofilament being applied to health sieve material.
The above-mentioned preparation method being applied to the composite monofilament of health sieve material, wherein, in step (1), during described drying process, pre-crystallized: 45 ~ 95 DEG C (1 ~ 4 hour), heat up: 96 ~ 115 DEG C (1 ~ 5 hour), insulation: 115 DEG C (5 ~ 11 hours);
During described screw rod melting, extruder is for amount: 250 ~ 550g/min, pressure: 50 ~ 150kg/cm2, preheating zone temperature: 245 ~ 290 DEG C, melting zone temperature: 260 ~ 295 DEG C, metering zone temperature: 280 ~ 300 DEG C;
During described spinning, die plate temperature: 280 ~ 300 DEG C, spinning speed: 50 ~ 200m/min;
During described drawing and setting, draw ratio: 3 ~ 5.5, setting temperature: 120 ~ 160 DEG C;
During described ultrasonic cleaning, ultrasonic tank length: 10 ~ 15 meters, ultrasonic power: 0.15 ~ 2.5KW.
The above-mentioned preparation method being applied to the composite monofilament of health sieve material, wherein, in step (3), described center core layer monofilament and described cortex compound tense, the pump of extruder is for amount: 100 ~ 200g/min, main frame temperature: 170 ~ 210 DEG C, head temperature: 180 ~ 210 DEG C, screw pressure: 150 ~ 300kg/cm2.
The above-mentioned preparation method being applied to the composite monofilament of health sieve material, wherein, the equipment used of the screw rod smelting process in the equipment that the combination process in step (3) is used and step (1) is same equipment; Spinning technique in the equipment that spinning technique in step (3) is used and step (1) equipment used is also same equipment.
The above-mentioned preparation method being applied to the composite monofilament of health sieve material, wherein, the spinning technique in step (3) adopts parallel spinning technique.
Technique scheme tool has the following advantages or beneficial effect:
The composite monofilament being applied to health sieve material provided by the invention, adopt PLA as the cortex material of composite monofilament, adopt PA66 as the center core layer material of composite monofilament, and in cortex, add low melting point LPA66, thus the compatibility that improve between cortex and center core layer, make the bond stress of cortex on sandwich layer better, enhance the tightness of cortex and center core layer, make cortex difficult drop-off in center core layer, simultaneously, because PLA can reach the hygienic requirements of drinking water, therefore, this composite monofilament being applied to health sieve material can be applied to health sieve material, and then expand the range of application of composite monofilament in industries such as food medicine that this is applied to health sieve material.
The health that is applied to provided by the invention is sieved in the preparation method of the composite monofilament of material, adopt ultrasonic cleaning technique, make the ultrasonic nano-calcium carbonate removing fiber surface in ultrasonic tank, center core layer monofilament surface is made to occur hole, add the bonding area between center core layer monofilament and cortex, thus make the bond stress between center core layer monofilament and cortex better, strengthen the bonding intensity between center core layer monofilament and cortex, improve this anti-wear performance being applied to the composite monofilament of health sieve material and service life.
In addition, be applied in the preparation method of the composite monofilament of health sieve material provided by the invention, the equipment adopted due to the screw rod melting of the equipment that adopts in the combination process of center core layer monofilament and cortex and center core layer monofilament is same equipment, the equipment that the equipment adopted in center core layer monofilament and the cortex spinning technique after compound and the spinning technique of center core layer monofilament adopt is also identical, that is: the compound of the composite monofilament of health sieve material is applied to, the preparation work of spinning work and center core layer monofilament completes on same production line, thus decrease intermediate link, and then the preparation cost of the composite monofilament being applied to health sieve material can be reduced.
On the other hand, what adopt due to the spinning technique after center core layer monofilament and outer compound is parallel spinning technique, compensate for deficiency (the factory building complexity that composite spinning of the prior art adopts vertical spinning, equipment investment is large, operating cost is high), on the parallel spinning silk thread of center core layer monofilament, add the coated die head of a set of melting, form monofilament continuous seepage, feature coated online, reduce equipment investment, factory building is simple, operating cost is low, varietal adaptation is strong, thick composite monofilament can be produced, further reduce the production cost of the composite monofilament being applied to health sieve material.
Accompanying drawing explanation
By reading with reference to the following drawings detailed description made for the present invention, the present invention and feature, profile and advantage will become more apparent.
Fig. 1 is the process chart being applied to the preparation method of the composite monofilament of health sieve material provided by the invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but not as limiting to the invention.
Fig. 1 is the process chart being applied to the preparation method of the composite monofilament of health sieve material provided by the invention; As shown in the figure, the preparation method being applied to the composite monofilament of health sieve material provided by the invention comprises:
(1) will the PA66 section of nano-calcium carbonate be mixed with, after drying process, screw rod melting, spinning, drawing and setting, ultrasonic cleaning, make center core layer monofilament;
(2) will the PLA section of LPA66 be mixed with, after drying, screw rod melting, make cortex;
(3) by the center core layer monofilament made in step (1) and step (2) and cortex compound, spinning, then carry out water-bath cooling, last coiling and molding makes the composite monofilament being applied to health sieve material.
Wherein, in step (1), the nano-calcium carbonate of 8% ~ 13% in PA66, is mixed with; When drying process, pre-crystallized: 45 ~ 95 DEG C (1 ~ 4 hour), heat up: 96 ~ 115 DEG C (1 ~ 5 hour), insulation: 115 DEG C (5 ~ 11 hours);
When screw rod melting, extruder is for amount: 250 ~ 550g/min, pressure: 50 ~ 150kg/cm2, preheating zone temperature: 245 ~ 290 DEG C, melting zone temperature: 260 ~ 295 DEG C, metering zone temperature: 280 ~ 300 DEG C;
When spinning, die plate temperature: 280 ~ 300 DEG C, spinning speed: 50 ~ 200m/min;
When drawing and setting, draw ratio: 3 ~ 5.5, setting temperature: 120 ~ 160 DEG C;
When ultrasonic cleaning, ultrasonic tank length: 10 ~ 15 meters, ultrasonic power: 0.15 ~ 2.5KW.
In step (2), in PLA, be mixed with the LPA66 of 3% ~ 10%.
In step (3), center core layer monofilament and cortex compound tense, the pump of extruder is for amount: 100 ~ 200g/min, main frame temperature: 170 ~ 210 DEG C, head temperature: 180 ~ 210 DEG C, screw pressure: 150 ~ 300kg/cm2.
Screw rod smelting process in the equipment that combination process in step (3) is used and step (1) equipment used is same equipment; Spinning technique in the equipment that spinning technique in step (3) is used and step (1) equipment used is also same equipment.
Spinning technique in step (3) adopts parallel spinning technique.
The composite monofilament being applied to health sieve material adopting this preparation method of composite monofilament being applied to health sieve material to make comprises: material is the center core layer of PA66 and material is the cortex of PLA, the coated center core layer of cortex; Wherein, in center core layer, be mixed with nano-calcium carbonate, and the addition of nano-calcium carbonate is 8% ~ 13%; Be mixed with the LPA66 of low melting point in cortex, and the addition of LPA66 is 3% ~ 10%; The filament diameter of center core layer is 0.05 ~ 3.1mm; The compound ratio of center core layer and cortex is 33 ~ 67:67 ~ 33.
Embodiment 1:
1, the preparation of PA66 center core layer:
The preparation process of center core layer comprises: will be mixed with the PA66 chip drying of nano-calcium carbonate, and then carry out screw rod melting, spinning, drawing and setting, ultrasonic cleaning; Wherein, the addition of nano-calcium carbonate is 8%; The diameter of center core layer monofilament is 0.05mm.Technological parameter in its preparation process is specially: chip drying: pre-crystallized: 45 ~ 95 DEG C (1 hour); Heat up: 96 ~ 115 DEG C (1 hour); Insulation: 115 DEG C (5 hours).Screw rod melting: extruder is for amount: 250g/min; Pressure: 50kg/cm2; Preheating zone temperature: 245 DEG C; Melting zone temperature: 260 DEG C; Metering zone temperature: 280 DEG C.Spinning: die plate temperature: 280 DEG C; Spinning speed: 50m/min.Drawing and setting: draw ratio: 3; Setting temperature: 120 DEG C.Ultrasonic cleaning: ultrasonic tank length: 10 meters; Power: 0.15KW.
2, the preparation of PLA cortex:
The preparation process of cortex comprises: will be mixed with the PLA chip drying of LPA66, and then carry out screw rod melting; Wherein, the addition of the low melting point LPA66 be mixed with in cortex is 3%.
3, the preparation of the composite monofilament of health sieve material is applied to:
The preparation process of composite monofilament being applied to health sieve material is the step by being spun into composite monofilament after center core layer monofilament and cortex compound, it comprises: the center core layer monofilament two steps above made and cortex compound, spinning, carry out water-bath cooling subsequently, last coiling and molding.Wherein, the compound of center core layer and cortex is than being 33:67, and the technological parameter of compound tense is specially: the pump of extruder is for amount: 100g/min; Main frame temperature: 170 DEG C; Head temperature: 180 DEG C; Screw pressure: 150kg/cm2.
Embodiment 2:
1, the preparation of PA66 center core layer:
The preparation process of center core layer comprises: will be mixed with the PA66 chip drying of nano-calcium carbonate, and then carry out screw rod melting, spinning, drawing and setting, ultrasonic cleaning; Wherein, the addition of nano-calcium carbonate is 13%; The diameter of center core layer monofilament is 3.1mm.Technological parameter in its preparation process is specially: chip drying: pre-crystallized: 45 ~ 95 DEG C (4 hours); Heat up: 96 ~ 115 DEG C (5 hours); Insulation: 115 DEG C (11 hours).Screw rod melting: extruder is for amount: 550g/min; Pressure: 150kg/cm2; Preheating zone temperature: 290 DEG C; Melting zone temperature: 295 DEG C; Metering zone temperature: 300 DEG C.Spinning: die plate temperature: 300 DEG C; Spinning speed: 200m/min.Drawing and setting: draw ratio: 5.5; Setting temperature: 160 DEG C.Ultrasonic cleaning: ultrasonic tank length: 15 meters; Power: 2.5KW.
2, the preparation of PLA cortex:
The preparation process of cortex comprises: will be mixed with the PLA chip drying of LPA66, and then carry out screw rod melting; Wherein, the addition of the low melting point LPA66 be mixed with in cortex is 10%.
3, the preparation of the composite monofilament of health sieve material is applied to:
The preparation process of composite monofilament being applied to health sieve material is the step by being spun into composite monofilament after center core layer monofilament and cortex compound, it comprises: the center core layer monofilament two steps above made and cortex compound, spinning, carry out water-bath cooling subsequently, last coiling and molding.Wherein, the compound of center core layer and cortex is than being 67:33, and the technological parameter of compound tense is specially: the pump of extruder is for amount: 200g/min; Main frame temperature: 210 DEG C; Head temperature: 210 DEG C; Screw pressure: 300kg/cm2.
Embodiment 3:
1, the preparation of PA66 center core layer:
The preparation process of center core layer comprises: will be mixed with the PA66 chip drying of nano-calcium carbonate, and then carry out screw rod melting, spinning, drawing and setting, ultrasonic cleaning; Wherein, the addition of nano-calcium carbonate is 10%; The diameter of center core layer monofilament is 1.5mm.Technological parameter in its preparation process is specially: chip drying: pre-crystallized: 45 ~ 95 DEG C (2 hours); Heat up: 96 ~ 115 DEG C (2 hours); Insulation: 115 DEG C (7 hours).Screw rod melting: extruder is for amount: 350g/min; Pressure: 90kg/cm2; Preheating zone temperature: 275 DEG C; Melting zone temperature: 275 DEG C; Metering zone temperature: 285 DEG C.Spinning: die plate temperature: 285 DEG C; Spinning speed: 120m/min.Drawing and setting: draw ratio: 4; Setting temperature: 130 DEG C.Ultrasonic cleaning: ultrasonic tank length: 12 meters; Power: 1.0KW.
2, the preparation of PLA cortex:
The preparation process of cortex comprises: will be mixed with the PLA chip drying of LPA66, and then carry out screw rod melting; Wherein, the addition of the low melting point LPA66 be mixed with in cortex is 5%.
3, the preparation of the composite monofilament of health sieve material is applied to:
The preparation process of composite monofilament being applied to health sieve material is the step by being spun into composite monofilament after center core layer monofilament and cortex compound, it comprises: the center core layer monofilament two steps above made and cortex compound, spinning, carry out water-bath cooling subsequently, last coiling and molding.Wherein, the compound of center core layer and cortex is than being 45:55, and the technological parameter of compound tense is specially: the pump of extruder is for amount: 130g/min; Main frame temperature: 185 DEG C; Head temperature: 190 DEG C; Screw pressure: 210kg/cm2.
Embodiment 4:
1, the preparation of PA66 center core layer:
The preparation process of center core layer comprises: will be mixed with the PA66 chip drying of nano-calcium carbonate, and then carry out screw rod melting, spinning, drawing and setting, ultrasonic cleaning; Wherein, the addition of nano-calcium carbonate is 12%; The diameter of center core layer monofilament is 2.2mm.Technological parameter in its preparation process is specially: chip drying: pre-crystallized: 45 ~ 95 DEG C (3 hours); Heat up: 96 ~ 115 DEG C (4 hours); Insulation: 115 DEG C (9 hours).Screw rod melting: extruder is for amount: 450g/min; Pressure: 120kg/cm2; Preheating zone temperature: 285 DEG C; Melting zone temperature: 290 DEG C; Metering zone temperature: 295 DEG C.Spinning: die plate temperature: 295 DEG C; Spinning speed: 160m/min.Drawing and setting: draw ratio: 5; Setting temperature: 150 DEG C.Ultrasonic cleaning: ultrasonic tank length: 14 meters; Power: 1.8KW.
2, the preparation of PLA cortex:
The preparation process of cortex comprises: will be mixed with the PLA chip drying of LPA66, and then carry out screw rod melting; Wherein, the addition of the low melting point LPA66 be mixed with in cortex is 8%.
3, the preparation of the composite monofilament of health sieve material is applied to:
The preparation process of composite monofilament being applied to health sieve material is the step by being spun into composite monofilament after center core layer monofilament and cortex compound, it comprises: the center core layer monofilament two steps above made and cortex compound, spinning, carry out water-bath cooling subsequently, last coiling and molding.Wherein, the compound of center core layer and cortex is than being 55:45, and the technological parameter of compound tense is specially: the pump of extruder is for amount: 170g/min; Main frame temperature: 200 DEG C; Head temperature: 200 DEG C; Screw pressure: 220kg/cm2.
In sum, what the embodiment of the present invention provided is applied in the preparation method of the composite monofilament of health sieve material, adopt ultrasonic cleaning technique, make the ultrasonic nano-calcium carbonate removing fiber surface in ultrasonic tank, center core layer monofilament surface is made to occur hole, add the bonding area between center core layer monofilament and cortex, thus make the bond stress between center core layer monofilament and cortex better, strengthen the bonding intensity between center core layer monofilament and cortex, improve this anti-wear performance being applied to the composite monofilament of health sieve material and service life.
In addition, what provide in the embodiment of the present invention is applied in the preparation method of the composite monofilament of health sieve material, the equipment adopted due to the screw rod melting of the equipment that adopts in the combination process of center core layer monofilament and cortex and center core layer monofilament is same equipment, the equipment that the equipment adopted in center core layer monofilament and the cortex spinning technique after compound and the spinning technique of center core layer monofilament adopt is also identical, that is: the compound of the composite monofilament of health sieve material is applied to, the preparation work of spinning work and center core layer monofilament completes on same production line, thus decrease intermediate link, and then the preparation cost of the composite monofilament being applied to health sieve material can be reduced.
On the other hand, what adopt due to the spinning technique after center core layer monofilament and outer compound is parallel spinning technique, compensate for deficiency (the factory building complexity that composite spinning of the prior art adopts vertical spinning, equipment investment is large, operating cost is high), on the parallel spinning silk thread of center core layer monofilament, add the coated die head of a set of melting, form monofilament continuous seepage, feature coated online, reduce equipment investment, factory building is simple, operating cost is low, varietal adaptation is strong, thick composite monofilament can be produced, further reduce the production cost of the composite monofilament being applied to health sieve material.
In addition, the composite monofilament being applied to health sieve material that the preparation method of the composite monofilament of health that what the embodiment of the present invention provided be applied to sieve material makes, it adopts PLA as the cortex material of composite monofilament, adopt PA66 as the center core layer material of composite monofilament, and in cortex, add low melting point LPA66, thus the compatibility that improve between cortex and center core layer, make the bond stress of cortex on sandwich layer better, enhance the tightness of cortex and center core layer, make cortex difficult drop-off in center core layer, simultaneously, because PLA can reach the hygienic requirements of drinking water, therefore, this composite monofilament being applied to health sieve material can be applied to health sieve material, and then expand the range of application of composite monofilament in industries such as food medicine that this is applied to health sieve material.
It should be appreciated by those skilled in the art that those skilled in the art can realize described change case in conjunction with prior art and above-described embodiment, do not repeat them here.Such change case does not affect flesh and blood of the present invention, does not repeat them here.
Above preferred embodiment of the present invention is described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, the equipment wherein do not described in detail to the greatest extent and structure are construed as to be implemented with the common mode in this area; Any those of ordinary skill in the art, make many possible variations and modification not departing from technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations, this does not affect flesh and blood of the present invention.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.

Claims (10)

1. be applied to a composite monofilament for health sieve material, it is characterized in that, comprising: material is the center core layer of PA66 and material is the cortex of PLA, the coated described center core layer of described cortex.
2. be applied to the composite monofilament of health sieve material as claimed in claim 1, it is characterized in that, in described center core layer, be mixed with nano-calcium carbonate, and the addition of described nano-calcium carbonate be 8% ~ 13%.
3. be applied to the composite monofilament of health sieve material as claimed in claim 1, it is characterized in that, in described cortex, be mixed with the LPA66 of low melting point, and the addition of described LPA66 be 3% ~ 10%.
4. be applied to the composite monofilament of health sieve material as claimed in claim 1, it is characterized in that, the filament diameter of described center core layer is 0.05 ~ 3.1mm.
5. be applied to the composite monofilament of health sieve material as claimed in claim 1, it is characterized in that, the compound ratio of described center core layer and described cortex is 33 ~ 67:67 ~ 33.
6., as the preparation method being applied to the composite monofilament of health sieve material in Claims 1 to 5 as described in any one, it is characterized in that, comprising:
(1) will the PA66 section of nano-calcium carbonate be mixed with, after drying process, screw rod melting, spinning, drawing and setting, ultrasonic cleaning, make center core layer monofilament;
(2) will the PLA section of LPA66 be mixed with, after drying, screw rod melting, make cortex;
(3) by the center core layer monofilament made in step (1) and step (2) and cortex compound, spinning, then carry out water-bath cooling, last coiling and molding makes the composite monofilament being applied to health sieve material.
7. be applied to the preparation method of the composite monofilament of health sieve material as claimed in claim 6, it is characterized in that, in step (1), during described drying process, pre-crystallized: 45 ~ 95 DEG C (1 ~ 4 hour), heat up: 96 ~ 115 DEG C (1 ~ 5 hour), insulation: 115 DEG C (5 ~ 11 hours);
During described screw rod melting, extruder is for amount: 250 ~ 550g/min, pressure: 50 ~ 150kg/cm2, preheating zone temperature: 245 ~ 290 DEG C, melting zone temperature: 260 ~ 295 DEG C, metering zone temperature: 280 ~ 300 DEG C;
During described spinning, die plate temperature: 280 ~ 300 DEG C, spinning speed: 50 ~ 200m/min;
During described drawing and setting, draw ratio: 3 ~ 5.5, setting temperature: 120 ~ 160 DEG C;
During described ultrasonic cleaning, ultrasonic tank length: 10 ~ 15 meters, ultrasonic power: 0.15 ~ 2.5KW.
8. be applied to the preparation method of the composite monofilament of health sieve material as claimed in claim 6, it is characterized in that, in step (3), described center core layer monofilament and described cortex compound tense, the pump of extruder is for amount: 100 ~ 200g/min, main frame temperature: 170 ~ 210 DEG C, head temperature: 180 ~ 210 DEG C, screw pressure: 150 ~ 300kg/cm2.
9. be applied to the preparation method of composite monofilament of health sieve material as claimed in claim 6, it is characterized in that, the equipment used of the screw rod smelting process in the equipment that the combination process in step (3) is used and step (1) is same equipment; Spinning technique in the equipment that spinning technique in step (3) is used and step (1) equipment used is also same equipment.
10. be applied to the preparation method of the composite monofilament of health sieve material as claimed in claim 6, it is characterized in that, the spinning technique in step (3) adopts parallel spinning technique.
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