CN115928292A - High-resilience fabric, processing equipment and preparation method - Google Patents
High-resilience fabric, processing equipment and preparation method Download PDFInfo
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- CN115928292A CN115928292A CN202211009984.0A CN202211009984A CN115928292A CN 115928292 A CN115928292 A CN 115928292A CN 202211009984 A CN202211009984 A CN 202211009984A CN 115928292 A CN115928292 A CN 115928292A
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Abstract
The invention provides a high-resilience fabric, processing equipment and a preparation method, and relates to the technical field of composite fiber textile fabrics. The high-resilience fabric is woven by high-resilience spinning fibers. According to the invention, the shrinkage difference of the fibers is improved through the difference of the two-component intrinsic viscosity, the different extrusion temperatures of the skin layer melt and the core layer melt are adjusted, the temperature of biphenyl in the skin layer spinning box and the temperature of biphenyl in the core layer spinning box are controlled, so that the skin layer melt and the core layer melt have temperature difference, a better asymmetric cooling effect can be obtained during cooling, the shrinkage difference of the fibers is improved, the elasticity and the elastic recovery rate of the fabric are further improved, the second diversion trench is heated through the skin layer spinning box biphenyl, the temperature difference between the melts is stabilized, the temperature is more accurate, the prepared high-resilience spinning fiber has natural permanent spiral crimping and excellent elasticity and elastic recovery rate, and the fabric with high resilience rate obtained by spinning has high resilience and lasting elasticity.
Description
Technical Field
The invention relates to the technical field of composite fiber textile fabrics, in particular to a fabric with high rebound rate, processing equipment and a preparation method.
Background
The high resilience fabric has excellent softness, elastic resilience and excellent crease resistance, so that the clothes made of the fabric has the characteristics of comfortable wear, dryness, stiffness, soft touch, easy washing and quick drying, the high resilience fabric is generally obtained by weaving elastic fibers, the elastic fibers refer to tows with high extensibility and high resilience, false twist textured yarns are generally used in the early stage, the fibers can generate an elastic effect after higher overfeeding ratio, but the elastic effect can be gradually eliminated along with the use frequency, along with the technical development, composite elastic fibers are developed, the composite elastic fibers are prepared by two raw materials through a composite spinning process, the stress difference is formed by different intrinsic viscosities of the two groups of materials, the produced fibers form a spiral shape, and the composite elastic fibers have longer-acting resilience compared with the traditional false twist textured yarns, but the resilience rate of the common elastic fibers in the market at present still has a space for further improvement.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a high-resilience fabric, processing equipment and a preparation method, and solves the problem that the resilience of common elastic fibers in the market still has a further improvement space.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-resilience fabric comprises: the fabric with the high rebound rate is formed by spinning high rebound spinning fibers, the high rebound spinning fibers are composed of a core layer and a skin layer which is coated on the side wall of the core layer in a half-wrapping mode, the cross section of the high rebound spinning fibers is semicircular and three groups of bosses are arranged at the straight edge of the high rebound spinning fibers, the skin layer is made of PA6 slices, the intrinsic viscosity of the PA6 slices is 2.77-2.79dL/g, the core layer is made of PET slices, the intrinsic viscosity of the PET slices is 0.72-0.8dL/g, the mass ratio of the skin layer in the high rebound spinning fibers is 70-80%, and the mass ratio of the core layer in the high rebound spinning fibers is 20-30%.
The utility model provides a processing equipment of high resilience rate surface fabric, includes heating screw extruder, fuse-element pipeline, measuring pump, spinning box, side blast apparatus, oil feeding wheel, drawing wheel and rolling machine, the spinning box lower wall is provided with the spinneret subassembly that is used for spouting nascent composite filament, the spinneret subassembly includes: the connecting base is detachably connected to the lower wall of the spinning box through a mounting flange and a plurality of groups of outer hexagonal screws, a positioning boss is arranged on the upper wall of the connecting base, a sealing groove is formed in the outer wall of the circumference of the positioning boss, a sealing ring is sleeved on the inner side wall of the sealing groove, and the mounting flange is arranged on the outer wall of the circumference of the connecting base and close to the upper end of the mounting flange; the first flow guide disc, the second flow guide disc and the silk spraying disc are sequentially detachably connected to the lower wall of the connecting seat from top to bottom, and the inner wall of the silk spraying disc is provided with a silk spraying hole which is through up and down; the biphenyl connecting sunken groove is formed in the upper wall of the connecting seat and is arranged in the middle; the flow guide structure is arranged among the connecting seat, the first flow guide disc and the second flow guide disc and is used for guiding the melt from the spinning box to the spinneret orifice; the monofilament heating structure is arranged among the connecting seat, the first flow guide disc and the second flow guide disc and used for improving the local temperature.
Preferably, the connecting seat, the first flow guiding disc, the second flow guiding disc and the spinneret plate are detachably connected through four hexagon socket head cap screws, two positioning pins are jointly arranged in the inner walls of the connecting seat, the first flow guiding disc, the second flow guiding disc and the spinneret plate, the two positioning pins are oppositely arranged, and one of the positioning pins has a diameter three fifths of that of the other positioning pin.
Preferably, the drainage structure comprises an outer feeding groove, an inner feeding groove, a first flow guide groove, a second flow guide groove, a first inclined hole and a second inclined hole, the outer feeding groove and the inner feeding groove are sequentially arranged on the upper wall of the connecting seat from outside to inside, the first flow guide groove and the second flow guide groove are sequentially arranged on the upper wall of the first flow guide disc from outside to inside, the outer feeding groove and the first flow guide groove and the inner feeding groove and the second flow guide groove are communicated through a plurality of groups of flow guide holes respectively, the first inclined hole and the second inclined hole are vertically communicated with each other and are arranged on the inner wall of the second flow guide disc, the first inclined hole and the second inclined hole are obliquely arranged, the first inclined hole communicates the first flow guide groove with the spinneret orifice, and the second inclined hole communicates the second flow guide groove with the spinneret orifice.
Preferably, a heat insulation groove is formed in the upper wall of the first diversion disk and located between the first diversion groove and the second diversion groove, and a heat insulation felt is arranged on the inner side wall of the heat insulation groove.
Preferably, monofilament heating structure includes access connection, outlet joint, baffle and heating tank, the equal fixed connection of access connection, outlet joint is connected heavy inslot side lower wall at the biphenyl, it is inboard that the heating tank sets up at first flow guide disc upper wall and is located the second flow guide groove, access connection, outlet joint link up with the heating tank through two biphenyl circulation holes respectively, baffle fixed connection is at the heating tank inside wall, the baffle is located between access connection and the outlet joint under overlooking the projection.
Preferably, the cross section structure of the spinneret orifice in plan view is semicircular, and three groups of bulges are arranged on the semicircular straight edge.
A preparation method of a high-resilience fabric comprises the following steps:
s1, preparing materials, namely drying a skin layer material PA6 slice at 80 ℃ for 12 hours, and drying a core layer material PET slice at 60 ℃ for 8 hours, wherein the intrinsic viscosity of the skin layer material PA6 slice is 2.77-2.79dL/g, the mass ratio of the skin layer material PA6 slice to the high-resilience spun fiber is 70-80%, the intrinsic viscosity of the core layer material PET slice is 0.72-0.8dL/g, and the mass ratio of the core layer material PET slice to the high-resilience spun fiber is 20-30%;
s2, preparing a spinning melt, namely heating and melting a skin layer material PA6 slice and a core layer material PET slice by adopting two groups of heating screw extruders, extruding, conveying by a melt pipeline, and metering by a metering pump to respectively obtain the skin layer spinning melt and the core layer spinning melt;
s3, preparing spinning fibers, namely introducing the skin layer spinning melt and the core layer spinning melt into a spinning assembly of a spinning box, flowing to a spinneret plate assembly of the spinning assembly in the spinning assembly of the spinning box, converging and spinning at a spinneret plate to form nascent fibers, and cooling the nascent fibers by side blowing, oiling, stretching and winding into a barrel through a network to obtain the high-resilience spinning fibers;
and S4, preparing a fabric finished product, and spinning the high-resilience spinning fiber to obtain the fabric finished product with high resilience rate.
Preferably, the water content of the skin layer material PA6 slices after drying is less than or equal to 20PPM; the water content of the core layer material PET slice after drying is less than or equal to 40PPM.
Preferably, the temperatures in five temperature zones of the heating screw extruder when the sheath material PA6 slice is used for preparing the spinning melt are respectively 255 ℃, 259 ℃, 264 ℃, 267 ℃ and 270 ℃ from the feeding end to the discharging end, the temperatures in five temperature zones of the heating screw extruder when the core material PET slice is used for preparing the spinning melt are respectively 258 ℃, 262 ℃, 265 ℃, 267 ℃ and 268 ℃ from the feeding end to the discharging end, the biphenyl temperature in the sheath spinning box is 270 +/-1 ℃, and the biphenyl temperature in the core spinning box is 268 +/-1 ℃.
(III) advantageous effects
The invention provides a high-resilience fabric, processing equipment and a preparation method. The method has the following beneficial effects:
1. compared with the prior art, this high rebound rate surface fabric, select for use PA6 slice and the PET slice of intrinsic viscosity 0.72-0.8dL/g of intrinsic viscosity 2.77-2.79dL/g to make high rebound spinning fibre, spin high rebound rate surface fabric finished product with high rebound spinning fibre again, through the two ingredient intrinsic viscosity height differences of high rebound spinning fibre, promote the fibrous shrinkage difference of high rebound spinning, the semicircular cross sectional shape of cooperation high rebound spinning fibre, and the cortex is half-wrapped the sandwich layer, the sandwich layer is kept away from cortex one side and is set up three groups of bosss, the shrinkage difference has further been promoted, thereby make the high rebound spinning fibre of making have natural permanent spiral and curl and excellent elasticity and elastic recovery rate, the high rebound rate surface fabric rebound rate height and the elasticity that the weaving obtained are lasting.
2. Compared with the prior art, the preparation method of the high-resilience-rate fabric has the advantages that the extrusion temperature of the skin layer melt and the core layer melt is adjusted to be different, the biphenyl temperature in the skin layer spinning box and the biphenyl temperature in the core layer spinning box are controlled, the temperature difference exists between the skin layer melt and the core layer melt, the better asymmetric cooling effect can be obtained when the skin layer melt and the core layer melt are cooled, the shrinkage difference of the high-resilience spinning fiber is further improved, and the elasticity of the high-resilience spinning fiber, the elastic recovery rate and the resilience rate of the high-resilience-rate fabric are further improved.
3. Compared with the prior art, this processing equipment of high rebound rate surface fabric, through set up the biphenyl and connect heavy groove in spinneret subassembly, through the access connection, the exit joint link up with cortex spinning box biphenyl, just be located the second guiding gutter inboard and set up the heating bath in first guiding disc, and pass through biphenyl opening and access joint with the heating bath, the exit joint links up, the baffle that the deuterogamy set up, make cortex spinning box biphenyl can follow the access connection and get into, flow from the exit joint again around heating bath a week, form the circulation, heat the second guiding gutter, further stabilize the difference in temperature between cortex spinning fuse-element and the sandwich layer spinning fuse-element, the thermal-insulated felt can ensure that the temperature does not interfere between second guiding gutter and the first guiding gutter, make the temperature more accurate.
Drawings
FIG. 1 is a schematic cross-sectional view of a high resilience spun fiber tip of the present invention;
FIG. 2 is a schematic view of the overall construction of a spinnerette assembly of the present invention;
FIG. 3 is a cross-sectional view of the internal structure of the spinneret assembly of the present invention;
FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 3;
FIG. 5 is a schematic view of a connecting base of the present invention;
FIG. 6 is a schematic view of a top view of the connecting base of the present invention;
fig. 7 is a schematic view of a top-down structure of the first deflector disc of the present invention;
fig. 8 is a top view schematic view of a second diaphragm of the present invention;
FIG. 9 is a schematic top view of the nozzle plate and the nozzle hole of the present invention.
Wherein, 1, cortex; 2. a core layer; 3. a connecting seat; 4. installing a flange; 5. positioning the boss; 6. a seal ring; 7. a hexagonal screw; 8. a first flow guide disc; 9. a second flow guide disc; 10. a wire spraying disc; 11. a hexagon socket head cap screw; 12. an outer feed chute; 13. an inner feed chute; 14. the biphenyl is connected with the sinking groove; 15. an inlet fitting; 16. a flow guide hole; 17. a biphenyl circulation hole; 18. a heat insulation felt; 19. a first diversion trench; 20. a second guiding gutter; 21. a heating tank; 22. a first inclined hole; 23. a second inclined hole; 24. a spinneret orifice; 25. a sealing groove; 26. positioning pins; 27. a partition plate; 28. a heat insulation groove; 29. an outlet fitting.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a fabric with high rebound rate, the fabric with high rebound rate is formed by spinning a high rebound spinning fiber, the high rebound spinning fiber is composed of a core layer 2 and a skin layer 1 half-wrapped on a side wall of the core layer 2, a cross section of the high rebound spinning fiber is semicircular and three sets of bosses are arranged at a straight edge, the skin layer 1 is made of a PA6 slice, an intrinsic viscosity of the PA6 slice is 2.77-2.79dL/g, the core layer 2 is made of a PET slice, an intrinsic viscosity of the PET slice is 0.72-0.8dL/g, a mass ratio of the skin layer 1 in the high rebound spinning fiber is 70-80%, a mass ratio of the core layer 2 in the high rebound spinning fiber is 20-30%, the shrinkage difference of the high rebound spinning fiber is improved by two-component intrinsic viscosities of the high rebound spinning fiber, the shrinkage difference of the high rebound spinning fiber is improved by matching with a semicircular cross section shape of the high rebound spinning fiber, the skin layer 1 half-wraps the core layer 2, the three sets of bosses are arranged at a side of the core layer 2 far from the skin layer 1, and the shrinkage difference is further improved, so that the manufactured high rebound spinning fiber has natural spiral crimp, and excellent elasticity and the fabric with excellent permanent elasticity and the high rebound rate of the textile fabric with excellent elasticity and the high rebound rate is obtained.
As shown in fig. 2 to 9, a processing apparatus for a high-resilience fabric comprises a heating screw extruder, a melt pipeline, a metering pump, a spinning box, a side blowing device, a loading wheel, a stretching wheel and a winding machine, wherein a spinneret plate assembly for spraying out as-spun composite yarns is arranged on the lower wall of the spinning box, and the spinneret plate assembly comprises: the spinning device comprises a connecting seat 3, a first flow guide disc 8, a second flow guide disc 9, a spinning disc 10, a biphenyl connecting sink groove 14, a flow guide structure and a monofilament heating structure, wherein biphenyl heating devices are arranged in a spinning box;
the spinning jet assembly is characterized in that a connecting seat 3 is detachably connected to the lower wall of a spinning box through a mounting flange 4 and a plurality of groups of outer hexagonal screws 7, a positioning boss 5 is arranged on the upper wall of the connecting seat 3, a sealing groove 25 is formed in the circumferential outer wall of the positioning boss 5, a sealing ring 6 is sleeved on the inner side wall of the sealing groove 25, the mounting flange 4 is arranged on the circumferential outer wall of the connecting seat 3 and is close to the upper end of the connecting seat, a positioning hole is formed in the lower wall of the spinning box, and the spinning jet assembly is inserted into the positioning hole of the spinning box through the positioning boss 5 and is fixed through the plurality of groups of outer hexagonal screws 7 when being mounted;
the first flow deflector 8, the second flow deflector 9 and the wire spray disk 10 are sequentially detachably connected to the lower wall of the connecting seat 3 from top to bottom, the connecting seat 3, the first flow deflector 8, the second flow deflector 9 and the wire spray disk 10 are detachably connected through four hexagon socket head cap screws 7, two positioning pins 26 are jointly arranged in the inner walls of the connecting seat 3, the first flow deflector 8, the second flow deflector 9 and the wire spray disk 10, the two positioning pins 26 are oppositely arranged, one diameter of the two positioning pins is three fifths of the other diameter, the first flow deflector 8, the second flow deflector 9 and the wire spray disk 10 are arranged into a body structure, so that the internal flow guide structure and the internal single wire heating structure are very convenient to process, the two positioning pins 26 are differently arranged to play a foolproof role during assembly, the direction assembly is avoided, and the assembly efficiency is improved;
the inner wall of the spinneret plate 10 is provided with a spinneret orifice 24 which is through up and down, the section structure of the spinneret orifice 24 is semicircular when viewed from above, three groups of bulges are arranged on the semicircular straight edge, the skin layer 1 spinning melt and the core layer 2 spinning cylinder are extruded into the spinneret orifice 24 from the first inclined hole 22 and the second inclined hole 23 through the pressure in the spinning box, the section structure of the spun filament bundle is semicircular when viewed from above through the spinneret orifice 24, the semicircular straight edge is provided with three groups of bulges, the section of the spun filament bundle is in the semicircular section shape, the skin layer 1 covers the core layer 2 in a half way, and three groups of bosses are arranged on one side of the core layer 2 far away from the skin layer 1;
the biphenyl connecting sink 14 is arranged on the upper wall of the connecting seat 3 and at the central position, the drainage structure is arranged among the connecting seat 3, the first flow guiding disc 8 and the second flow guiding disc 9, the drainage structure comprises an outer feeding groove 12, an inner feeding groove 13, a first flow guiding groove 19, a second flow guiding groove 20, a first inclined hole 22 and a second inclined hole 23, the outer feeding groove 12 and the inner feeding groove 13 are sequentially arranged on the upper wall of the connecting seat 3 from outside to inside, the first flow guiding groove 19 and the second flow guiding groove 20 are sequentially arranged on the upper wall of the first flow guiding disc 8 from outside to inside, the space between the outer feeding groove 12 and the first flow guiding groove 19, the space between the inner feeding groove 13 and the second flow guiding groove 20 are respectively communicated through a plurality of groups of flow guiding holes 16, and the first inclined hole 22, the second inclined hole 23 is arranged on the inner wall of the second flow guiding disc 9 in a vertically through manner, the first inclined hole 22 and the second inclined hole 23 are obliquely arranged, the first inclined hole 22 penetrates the first flow guiding groove 19 and the spinneret hole 24, the second inclined hole 23 penetrates the second flow guiding groove 20 and the spinneret hole 24, a heat insulation groove 28 is arranged on the upper wall of the first flow guiding disc 8 and between the first flow guiding groove 19 and the second flow guiding groove 20, a heat insulation felt 18 is arranged on the inner side wall of the heat insulation groove 28, a flow guide structure is used for guiding the melt to the spinneret hole 24 from the spinning box, the core layer 2 spinning melt and the skin layer 1 spinning melt are filtered and heated in the respective spinning boxes, then respectively enter the outer feed groove 12 and the inner feed groove 13, respectively enter the first flow guiding groove 19 and the second flow guiding groove 20 through a plurality of flow guiding holes 16, the core layer 2 spinning melt entering the first flow to the spinneret hole 24 from the first inclined hole 22, the spinning melt entering the skin layer 20 is ejected from the spinning 1 of the second flow guiding groove 20, and flows to the spinneret hole 24, and the spinning melt flows to form a composite filament bundle from the spinneret hole 24 together;
monofilament heating structure, monofilament heating structure sets up at connecting seat 3, first guiding disk 8, between second guiding disk 9, monofilament heating structure includes inlet joint 15, outlet joint 29, baffle 27 and heating groove 21, inlet joint 15, the equal fixed connection of outlet joint 29 is at the inboard lower wall of biphenyl joint heavy groove 14, heating groove 21 sets up at first guiding disk 8 upper wall and is located second guiding groove 20 inboardly, inlet joint 15, outlet joint 29 link up with heating groove 21 through two biphenyl opening 17 respectively, baffle 27 fixed connection is at heating groove 21 inside wall, baffle 27 is located between inlet joint 15 and outlet joint 29 under overlooking the projection, monofilament heating structure is used for promoting local temperature, through inlet joint 15, outlet joint 29 and cortex 1 spinning box biphenyl intercommunication, make cortex 1 spinning box biphenyl can heat second guiding groove 20, further stabilize the temperature before cortex 1 spinning, make behind the compound silk bundle blowout cortex 1, the certain difference in temperature just self exists in sandwich layer 2, the asymmetric cooling of deuterogamy has promoted the heliciform shrink poor, make silk bundle form the heliciform, promote elasticity and resilience rate.
Example one
A preparation method of a high-resilience fabric comprises the following steps:
s1, preparing materials, namely drying a PA6 slice of a material of a skin layer 1 at 80 ℃ for 12 hours, and drying a PET slice of a material of a core layer 2 at 60 ℃ for 8 hours, wherein the intrinsic viscosity of the PA6 slice of the material of the skin layer 1 is 2.79dL/g, the intrinsic viscosity of the PA6 slice of the material of the skin layer 1 accounts for 80% of the high-resilience spinning fiber, the intrinsic viscosity of the PET slice of the material of the core layer 2 is 0.72dL/g, the intrinsic viscosity of the PET slice of the material of the core layer 2 accounts for 20% of the high-resilience spinning fiber, and the water content of the PA6 slice of the material of the skin layer 1 is less than or equal to 20PPM after drying; the water content of the PET slices of the core layer 2 material after drying is less than or equal to 40PPM;
s2, preparing a spinning melt, namely heating and melting a skin layer 1 material PA6 slice and a core layer 2 material PET slice by adopting two groups of heating screw extruders, extruding the slices, and then conveying the slices through a melt pipeline and metering the slices by a metering pump to obtain a skin layer 1 spinning melt and a core layer 2 spinning melt respectively, wherein the temperatures in five groups of temperature zones of the heating screw extruders from the feed ends to the discharge ends are 255 ℃, 259 ℃, 264 ℃, 267 ℃ and 270 ℃ respectively when the skin layer 1 material PA6 slice is used for preparing the spinning melt, and the temperatures in five groups of temperature zones of the heating screw extruders from the feed ends to the discharge ends are 258 ℃, 262 ℃, 265 ℃, 267 ℃ and 268 ℃ respectively when the core layer 2 material PET slice is used for preparing the spinning melt;
s3, preparing spinning fibers, namely introducing the spinning melt of the skin layer 1 and the spinning melt of the core layer 2 into a spinning assembly of a spinning box, flowing to a spinneret plate assembly of the spinning assembly in the spinning assembly of the spinning box, converging and spinning on the spinneret plate to form a nascent fiber, cooling, oiling, stretching and winding the nascent fiber into a barrel through side air blowing to obtain the high-resilience spinning fiber, wherein the biphenyl temperature in the spinning box of the skin layer 1 is 271 ℃, the biphenyl temperature in the spinning box of the core layer 2 is 267 ℃, the relative humidity of the side air blowing is 85%, the air speed is 0.85-1 m/S, the air pressure is 20-40Pa, the air temperature is 16-20 ℃, the height of a calm zone is 30-50mm, the network pressure is 0.10MPa, the winding speed is 3100m/min, and the crimp rate of the prepared high-resilience spinning fiber is 55% and the rebound rate is 95%;
and S4, preparing a fabric finished product, and spinning the high-resilience spinning fiber to obtain the fabric finished product with high resilience rate.
Example two
A preparation method of a high-resilience fabric comprises the following steps:
s1, preparing materials, namely drying a PA6 slice of a material of a skin layer 1 at 80 ℃ for 12 hours, and drying a PET slice of a material of a core layer 2 at 60 ℃ for 8 hours, wherein the intrinsic viscosity of the PA6 slice of the material of the skin layer 1 is 2.77dL/g, the mass ratio of the PA6 slice of the material of the skin layer 1 in the high-resilience spinning fiber is 70%, the intrinsic viscosity of the PET slice of the material of the core layer 2 in the high-resilience spinning fiber is 0.8dL/g, the mass ratio of the PET slice of the material of the core layer 2 in the high-resilience spinning fiber is 30%, and the water content of the PA6 slice of the material of the skin layer 1 after drying is less than or equal to 20PPM; the water content of the core layer 2 material PET slices after drying is less than or equal to 40PPM;
s2, preparing a spinning melt, namely heating and melting a skin layer 1 material PA6 slice and a core layer 2 material PET slice by adopting two groups of heating screw extruders, extruding, conveying by a melt pipeline, and metering by a metering pump to respectively obtain a skin layer 1 spinning melt and a core layer 2 spinning melt, wherein the temperatures in five groups of temperature zones of the heating screw extruders are respectively 255 ℃, 259 ℃, 264 ℃, 267 ℃ and 270 ℃ from the feed ends to the discharge ends when the skin layer 1 material PA6 slice is used for preparing the spinning melt, and the temperatures in five groups of temperature zones of the heating screw extruders are respectively 258 ℃, 262 ℃, 265 ℃, 267 ℃ and 268 ℃ from the feed ends to the discharge ends when the core layer 2 material PET slice is used for preparing the spinning melt;
s3, preparing spinning fibers, namely introducing a spinning melt of the skin layer 1 and a spinning melt of the core layer 2 into a spinning assembly of a spinning box, flowing to a spinneret assembly of the spinning assembly in the spinning assembly of the spinning box, converging and spinning on a spinneret to form a nascent fiber, cooling, oiling, stretching and winding the nascent fiber into a barrel through side air blowing to obtain the high-resilience spinning fiber, wherein the biphenyl temperature in the spinning box of the skin layer 1 is 269 ℃, the biphenyl temperature in the spinning box of the core layer 2 is 268 ℃, the relative humidity of the side air blowing is 85%, the air speed is 0.85-1 m/S, the air pressure is 20-40Pa, the air temperature is 16-20 ℃, the height of a calm zone is 30-50mm, the network pressure is 0.10MPa, the winding speed is m/min, the crimp rate of the prepared high-resilience spinning fiber is 48%, and the rebound rate is 91%;
and S4, preparing a fabric finished product, and spinning the high-resilience spinning fiber to obtain the fabric finished product with high resilience rate.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The high-resilience rate fabric is characterized in that: the fabric with the high rebound rate is formed by spinning high rebound spinning fibers, the high rebound spinning fibers are composed of a core layer (2) and a skin layer (1) which is coated on the side wall of the core layer (2) in a half-wrapping mode, the cross section of the high rebound spinning fibers is semicircular and the straight edge of the high rebound spinning fibers is provided with three groups of bosses, the skin layer (1) is made of PA6 slices, the intrinsic viscosity of the PA6 slices is 2.77-2.79dL/g, the core layer (2) is made of PET slices, the intrinsic viscosity of the PET slices is 0.72-0.8dL/g, the ratio of the occupied mass of the skin layer (1) in the high rebound spinning fibers is 70-80%, and the ratio of the occupied mass of the core layer (2) in the high rebound spinning fibers is 20-30%.
2. The utility model provides a processing equipment of high resilience rate surface fabric, includes heating screw extruder, fuse-element pipeline, measuring pump, spinning box, side blast apparatus, oil feeding wheel, drawing wheel and rolling machine, its characterized in that: the spinning case lower wall is provided with the spinneret subassembly that is used for spouting nascent composite filament, the spinneret subassembly includes:
the spinning box comprises a connecting seat (3), wherein the connecting seat (3) is detachably connected to the lower wall of the spinning box through a mounting flange (4) and a plurality of groups of outer hexagonal screws (7), a positioning boss (5) is arranged on the upper wall of the connecting seat (3), a sealing groove (25) is formed in the outer wall of the circumference of the positioning boss (5), a sealing ring (6) is sleeved on the inner side wall of the sealing groove (25), and the mounting flange (4) is arranged on the outer wall of the circumference of the connecting seat (3) and is close to the upper end;
the device comprises a first flow guide disc (8), a second flow guide disc (9) and a silk spraying disc (10), wherein the first flow guide disc (8), the second flow guide disc (9) and the silk spraying disc (10) are sequentially detachably connected to the lower wall of a connecting seat (3) from top to bottom, and a silk spraying hole (24) which is through up and down is formed in the inner wall of the silk spraying disc (10);
the biphenyl connecting sinking groove (14) is formed in the upper wall of the connecting seat (3) and in the middle of the upper wall;
the flow guiding structure is arranged among the connecting seat (3), the first flow guiding disc (8) and the second flow guiding disc (9), and is used for guiding the melt from the spinning box to the spinneret hole (24);
monofilament heating structure, monofilament heating structure sets up between connecting seat (3), first guiding disk (8), second guiding disk (9), monofilament heating structure is used for promoting local temperature.
3. The processing equipment of the fabric with high rebound rate as set forth in claim 2, wherein: the connecting seat (3), the first flow guide disc (8), the second flow guide disc (9) and the wire spraying disc (10) are detachably connected through four hexagon socket head cap screws (11), two positioning pins (26) are jointly arranged in the inner walls of the connecting seat (3), the first flow guide disc (8), the second flow guide disc (9) and the wire spraying disc (10), the two positioning pins (26) are oppositely arranged, and one diameter of the positioning pins is three fifths of the other diameter.
4. The processing equipment of the fabric with high rebound rate as claimed in claim 2, wherein: the drainage structure comprises an outer feeding groove (12), an inner feeding groove (13), a first guide groove (19), a second guide groove (20), a first inclined hole (22) and a second inclined hole (23), the outer feeding groove (12) and the inner feeding groove (13) are sequentially arranged on the upper wall of the connecting seat (3) from outside to inside, the first guide groove (19) and the second guide groove (20) are sequentially arranged on the upper wall of the first guide disc (8) from outside to inside, the outer feeding groove (12) and the first guide groove (19) and the inner feeding groove (13) and the second guide groove (20) are respectively communicated through a plurality of groups of guide holes (16), the first inclined hole (22) and the second inclined hole (23) are vertically communicated and arranged on the inner wall of the second guide disc (9), the first inclined hole (22) and the second inclined hole (23) are obliquely arranged, the first guide groove (19) and the second inclined hole (24) are communicated with the spinneret hole (24), and the spinneret hole (20) is communicated with the spinneret hole (24).
5. The processing equipment of the fabric with high rebound rate as set forth in claim 4, wherein: and a heat insulation groove (28) is formed in the upper wall of the first diversion disc (8) and positioned between the first diversion groove (19) and the second diversion groove (20), and a heat insulation felt (18) is arranged on the inner side wall of the heat insulation groove (28).
6. The processing equipment of the fabric with high rebound rate as claimed in claim 2, wherein: monofilament heating structure includes access joint (15), outlet connection (29), baffle (27) and adds hot groove (21), the equal fixed connection of access joint (15), outlet connection (29) is at the heavy groove of biphenyl connection (14) inboard lower wall, it is inboard that hot groove (21) set up at first flow guide disc (8) upper wall and are located second flow guide groove (20), access joint (15), outlet connection (29) link up with hot groove (21) through two biphenyl circulation holes (17) respectively, baffle (27) fixed connection is at hot groove (21) inside wall, baffle (27) are located between access joint (15) and outlet connection (29) under overlooking the projection.
7. The processing equipment of the fabric with high rebound rate as claimed in claim 2, wherein: the cross section structure of the spinneret orifice (24) in overlook is semicircular, and three groups of bulges are arranged on the semicircular straight edge.
8. A preparation method of a high-resilience fabric is characterized by comprising the following steps: the preparation method comprises the following steps:
s1, preparing materials, namely drying a PA6 slice of a skin layer (1) material at 80 ℃ for 12 hours, and drying a PET slice of a core layer (2) material at 60 ℃ for 8 hours, wherein the intrinsic viscosity of the PA6 slice of the skin layer (1) material is 2.77-2.79dL/g, the intrinsic viscosity of the PA6 slice of the skin layer (1) material accounts for 70-80% of the mass of the PA6 slice of the core layer in high-resilience spinning fibers, and the intrinsic viscosity of the PET slice of the core layer (2) material is 0.72-0.8dL/g, and the mass of the PET slice of the core layer (2) material accounts for 20-30% of the high-resilience spinning fibers;
s2, preparing a spinning melt, namely heating and melting the PA6 slice of the material of the skin layer (1) and the PET slice of the material of the core layer (2) by adopting two groups of heating screw extruders, extruding, conveying by a melt pipeline, and metering by a metering pump to respectively obtain the spinning melt of the skin layer (1) and the spinning melt of the core layer (2);
s3, preparing spinning fibers, namely introducing the spinning melt of the skin layer (1) and the spinning melt of the core layer (2) into a spinning assembly of a spinning box, enabling the spinning melt to flow to a spinneret plate assembly of the spinning assembly in the spinning assembly of the spinning box, converging and spinning at a spinneret plate to form nascent fibers, and cooling the nascent fibers through side air blowing, oiling, stretching and winding into a barrel through a network to obtain the high-resilience spinning fibers;
and S4, preparing a fabric finished product, and spinning the high-resilience spinning fiber to obtain the fabric finished product with high resilience rate.
9. The preparation method of the fabric with high rebound rate as claimed in claim 8, wherein the preparation method comprises the following steps: the water content of the PA6 slice of the material of the skin layer (1) is less than or equal to 20PPM after being dried; the water content of the PET slices of the material of the core layer (2) after drying is less than or equal to 40PPM.
10. The preparation method of the high-resilience fabric according to claim 8, wherein the method comprises the following steps: the temperature in the five temperature regions of the heating screw extruder when the skin layer (1) material PA6 slice is used for preparing the spinning melt is 255 ℃, 259 ℃, 264 ℃, 267 ℃ and 270 ℃ from the feeding end to the discharging end respectively, the temperature in the five temperature regions of the heating screw extruder when the core layer (2) material PET slice is used for preparing the spinning melt is 258 ℃, 262 ℃, 265 ℃, 267 ℃ and 268 ℃ from the feeding end to the discharging end respectively, the biphenyl temperature in the skin layer (1) spinning box is 270 +/-1 ℃, and the biphenyl temperature in the core layer (2) spinning box is 268 +/-1 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211009984.0A CN115928292A (en) | 2022-08-22 | 2022-08-22 | High-resilience fabric, processing equipment and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211009984.0A CN115928292A (en) | 2022-08-22 | 2022-08-22 | High-resilience fabric, processing equipment and preparation method |
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| CN115928292A true CN115928292A (en) | 2023-04-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575182A (en) * | 2023-07-14 | 2023-08-11 | 江苏富之岛美安纺织品科技有限公司 | PLA (polylactic acid) bi-component super-expansion super-elastic pearl cotton ball, processing equipment and manufacturing method thereof |
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2022
- 2022-08-22 CN CN202211009984.0A patent/CN115928292A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575182A (en) * | 2023-07-14 | 2023-08-11 | 江苏富之岛美安纺织品科技有限公司 | PLA (polylactic acid) bi-component super-expansion super-elastic pearl cotton ball, processing equipment and manufacturing method thereof |
| CN116575182B (en) * | 2023-07-14 | 2023-09-19 | 江苏富之岛美安纺织品科技有限公司 | PLA (polylactic acid) bi-component super-expansion super-elastic pearl cotton ball processing equipment and manufacturing method thereof |
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