CN111041573B - Seat fabric and preparation method thereof - Google Patents
Seat fabric and preparation method thereof Download PDFInfo
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- CN111041573B CN111041573B CN201911386317.2A CN201911386317A CN111041573B CN 111041573 B CN111041573 B CN 111041573B CN 201911386317 A CN201911386317 A CN 201911386317A CN 111041573 B CN111041573 B CN 111041573B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
- D01D5/23—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/08—Upholstery, mattresses
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Artificial Filaments (AREA)
- Woven Fabrics (AREA)
Abstract
The invention relates to a preparation method of a seat fabric, which adopts functional chinlon FDY fiber as a raw material and comprises the following process flows: weaving → pretreatment → dyeing → drying → sanding → shaping; the preparation process of the functional chinlon FDY fiber comprises the following steps: extruding a polyamide melt from a trilobal spinneret orifice on a spinneret plate, cooling by adopting circular blowing, and preparing functional nylon FDY fiber according to an FDY process; the included angle ratio of the center lines of the three leaves of the same trilobal spinneret orifice is 1.0: 1.5-3.1, the minimum included angle is 50-90 degrees, the other two included angles are equal, the length and the width of the three leaves are the same, and the ratio of the length to the width is 2.5-3.5: 1; the three leaves of different trilobal spinneret orifices have the same shape and size; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf, which is opposite to the minimum included angle, of each trilobal spinneret orifice passes through the circle center and points away from the circle center. The invention improves the hygroscopicity and the air permeability of the seat fabric.
Description
Technical Field
The invention belongs to the technical field of seat fabrics, and relates to a seat fabric and a preparation method thereof.
Background
With the improvement of the living standard of consumers, the style of the seat fabric is changed day by day. At present, seat fabrics are generally made of genuine leather, artificial leather, fabric fabrics and the like, and the development is particularly rapid due to the continuous aging of raw materials and processing technology of the fabric fabrics. Comfort is of paramount importance for a typical seat. However, the seat fabric in the prior art has poor air permeability and hygroscopicity, so that stuffiness can be generated after long-time sitting, and the comfort is seriously influenced.
Therefore, it is necessary to develop a seat fabric having good moisture absorption and air permeability.
Disclosure of Invention
The invention provides a preparation method of a seat fabric, and aims to solve the problem that the seat fabric in the prior art is poor in hygroscopicity and air permeability.
In order to achieve the purpose, the invention adopts the following scheme:
a preparation method of seat fabric adopts functional chinlon FDY fiber as a raw material, and comprises the following process flows of: weaving → pretreatment → dyeing → drying → sanding → shaping;
the preparation process of the functional chinlon FDY fiber comprises the following steps:
extruding a polyamide melt from a trilobal spinneret orifice on a spinneret plate, cooling by adopting circular blowing, and preparing functional nylon FDY fiber according to an FDY process;
the included angle ratio of the center lines of the three leaves of the same trilobal spinneret orifice is 1.0: 1.5-3.1, the minimum included angle is 50-90 degrees, the degrees of the other two included angles are the same, the length and the width of the three leaves are the same, and the ratio of the length to the width is 2.5-3.5: 1; the three leaves of different trilobal spinneret orifices have the same shape and size;
all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf, which is opposite to the minimum included angle, of each trilobal spinneret orifice passes through the circle center and points away from the circle center.
The principle of the invention is as follows:
the invention adopts functional chinlon FDY fiber as a raw material to carry out the process flow of weaving → pretreatment → dyeing → drying → sanding → shaping, wherein the pretreatment is to remove oil used in the spinning and weaving process, and aims to obtain more uniform dyeing effect and higher dye uptake; the drying is for better subsequent sanding, and the functional chinlon FDY fiber can also obtain a three-dimensional curling shape, so that the fabric has certain elasticity; the sanding is to generate a layer of short and dense villus on the surface of the fabric, the villus is derived from FDY fibers after self-curling, the sanding is carried out on a sanding machine, after sanding, the villus still has a three-dimensional curling shape, the curling shape is generated by the self-curling of the fibers, the stability is good, and the seat fabric can keep a lasting style. In addition, due to the good wear resistance of the nylon, the requirement of the seat fabric on wear resistance in use can be met.
The functional polyamide FDY fiber is prepared according to an FDY process, and polyamide melt is extruded from a trilobal spinneret orifice on a spinneret plate and then is cooled by circular blowing, wherein the cooling air blow is over against the leaf opposite to the minimum included angle in the trilobal, and the trilobal cooling conditions are seriously asymmetric and unbalanced. The three-blade spinneret orifice and the blade opposite to the minimum included angle are firstly windward and the surface contacted with cooling wind is the whole surface of the blade, and the other two blades are contacted with windward surfaces; therefore, the surface area of the contact between the three-lobed spinneret orifice and the blade opposite to the minimum included angle and the cooling air is far larger than that of the other two blades in the three blades, so that the cooling speed of the three-lobed spinneret orifice is higher than that of the other two blades, and the cooling speeds of the melts at different positions on the cross section are inconsistent after the fibers are sprayed out, and are mainly reflected as follows: during spinning, the cooling air speed is high and is between 1.80 and 2.30m/s, the part close to the air blowing port is cooled earlier and faster, and the part far away from the air blowing port is cooled slower. When one of the trefoil in the trefoil spinneret orifice faces the cooling wind, the melt of the blade is cooled quickly, and the other part of the trefoil is cooled slowly, so that the trefoil is easier to be drawn and thinned under the action of the drawing tension, and the stress is more concentrated, therefore, a structure with asymmetric stress of the trefoil can appear on the cross section of the fiber with the trefoil, the fiber with asymmetric stress and thickness on the cross section can present three-dimensional curling performance in the heat treatment or drawing process, the curling is good, the elastic recovery rate of the fiber is high, and the thermal damage of the fiber caused by the processing process of false twist deformation can be avoided according to the FDY process.
The seat fabric prepared by the invention adopts the nylon drawn yarns with three-dimensional curling shape and trilobal cross sections as raw materials, and the seat fabric has greatly enhanced moisture absorption performance due to the fact that the profiled drawn yarns have three-dimensional curling shape, monofilaments occupy large space and are fluffy and curl to form a plurality of convoluted spaces; because the functional chinlon FDY fiber has three-dimensional crimping performance and high bulkiness, the seat fabric made of the functional chinlon FDY fiber greatly increases the air quantity passing through the fabric in unit area in unit time under a certain pressure condition, and thus the air permeability is effectively improved.
As a preferred technical scheme:
according to the preparation method of the seat fabric, the drying temperature is 90-120 ℃, and the time is 20-30 min.
According to the preparation method of the seat fabric, the intrinsic viscosity of the polyamide melt is 2.30-2.40 dL/g.
According to the preparation method of the seat fabric, the parameters of the FDY process are as follows: the spinning temperature is 285-290 ℃, the cooling temperature is 17-22 ℃, the cooling air speed is 1.80-2.30 m/s, the one-roller speed is 1800-2000 m/min, the one-roller temperature is 85-95 ℃, the two-roller speed is 3300-3500 m/min, the two-roller temperature is 135-150 ℃, and the winding speed is 3230-3410 m/min.
According to the preparation method of the seat fabric, the functional nylon FDY fiber has the crimping shrinkage rate of 33-36%, the crimping stability of 78-82%, the shrinkage elongation of 65-72% and the crimping elastic recovery rate of 75-80%.
According to the preparation method of the seat fabric, the breaking strength of the functional nylon FDY fiber is more than or equal to 2.9cN/dtex, the elongation at break is 45.0 +/-5.0%, and the filament number is 1.0-1.5 dtex.
According to the preparation method of the seat fabric, the gram weight of the seat fabric is 250-300 g/m2The dripping diffusion time is less than or equal to 2.5s, the wicking height is 12.3-12.8 cm, and the flow resistance is 0.3-0.5 KPa.s/m (measured by a KES-F8-AP1 air permeability tester, the flow resistance (R) represents the test result, and the smaller the R value, the better the air permeability).
Has the advantages that:
(1) according to the seat fabric and the preparation method thereof, the functional chinlon FDY fiber is selected to prepare the fabric, and after the fabric is dried, the fiber in the fabric forms a three-dimensional curling shape, so that the seat fabric obtains a fluff surface with the three-dimensional curling shape;
(2) according to the seat fabric, fluff on the surface is in a curled shape, the structure is stable, the style is durable, and the comfort is good.
Drawings
FIG. 1 is a schematic view of the shape of a trilobal spinneret orifice of the present invention;
FIG. 2 is a schematic view of the distribution of the orifices of the present invention on a spinneret.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The crimp shrinkage and crimp stability of the invention are obtained by testing the tow in GB6506-2001 synthetic fiber textured yarn crimp performance test method;
the method for testing the shrinkage elongation (reflecting the elasticity and the crimp degree of the deformed filament, the fiber is firstly loaded under light load and then loaded under heavy load, and the ratio of the length difference value under the two loads to the crimp length) and the crimp elastic recovery rate is as follows:
firstly, cutting two fiber samples with the length of about 50cm, putting the two fiber samples into hot water with the temperature of 100 ℃ for treatment for 30min, taking out the two fiber samples, naturally drying the two fiber samples, then cutting the sample with the length of about 30cm, fixing one end of the sample, loading a load of 0.0018cN/dtex on the other end of the sample, continuing for 30s, marking the sample at the position of 20cm, and obtaining the initial length l of the sample1(ii) a Then, the load of 0.09cN/dtex is loaded for 30s, and the position of the mark point is measured, namely the length l when the sample is loaded with heavy load2(ii) a Finally, removing the heavy load, retracting the sample for 2min without load, then adding the load of 0.0018cN/dtex, continuing for 30s, and measuring the position of the mark point on the scale, namely the recovery length l3(ii) a The percent elongation at Compression (CE) and the elastic recovery from crimp (SR) are calculated as follows:
CE＝(l2-l1)/l1；
SR＝(l2-l3)/(l2-l1)。
the trilobal spinneret orifices and the distribution thereof on the spinneret plate are shown in the attached figures 1-2, the included angle ratio of the center lines of three leaves of the same trilobal spinneret orifice is 1.0: 1.5-3.1, the minimum included angle is 50-90 degrees, the degrees of the other two included angles are the same, the length and the width of the three leaves are the same, and the ratio of the length to the width is 2.5-3.5: 1; the three leaves of different trilobal spinneret orifices have the same shape and size; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf, which is opposite to the minimum included angle, of each trilobal spinneret orifice passes through the circle center and points away from the circle center. The drawings are only schematic and should not be construed as limiting the invention.
Example 1
A preparation method of seat fabric adopts functional chinlon FDY fiber as a raw material, and comprises the following process flows of: weaving → pretreatment → dyeing → drying → sanding → shaping; wherein the drying temperature is 90 ℃ and the drying time is 25 min;
the preparation process of the functional chinlon FDY fiber comprises the following steps:
extruding a polyamide melt with the intrinsic viscosity of 2.30dL/g from a trilobal spinneret orifice on a spinneret plate, cooling by adopting circular blowing, and preparing functional nylon FDY fiber according to an FDY process;
the included angles of the center lines of the three blades of the same trilobal spinneret orifice are different, the minimum included angle is 50 degrees, the degrees of the other two included angles are the same, the length and the width of the three blades are the same, and the ratio of the length to the width is 2.5: 1; the three leaves of different trilobal spinneret orifices have the same shape and size; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf of each trilobal spinneret orifice, which is opposite to the minimum included angle, passes through the circle center and points away from the circle center;
the parameters of the FDY process are as follows: the spinning temperature is 285 ℃, the cooling temperature is 17 ℃, the cooling air speed is 1.80m/s, the one-roller speed is 1800m/min, the one-roller temperature is 85 ℃, the two-roller speed is 3300m/min, the two-roller temperature is 135 ℃, and the winding speed is 3230 m/min;
the breaking strength of the prepared functional nylon FDY fiber is 2.9cN/dtex, the elongation at break is 50.0%, the single filament number is 1.0dtex, the crimp shrinkage is 33%, the crimp stability is 78%, the shrinkage elongation is 65%, and the crimp elastic recovery rate is 75%;
the gram weight of the prepared seat fabric is 250g/m2The drip diffusion time was 2.5s, the wicking height was 12.3cm, and the flow resistance was 0.5KPa s/m.
Example 2
A preparation method of seat fabric adopts functional chinlon FDY fiber as a raw material, and comprises the following process flows of: weaving → pretreatment → dyeing → drying → sanding → shaping; wherein the drying temperature is 95 ℃ and the drying time is 21 min;
the preparation process of the functional chinlon FDY fiber comprises the following steps:
extruding a polyamide melt with the intrinsic viscosity of 2.32dL/g from a trilobal spinneret orifice on a spinneret plate, cooling by adopting circular blowing, and preparing functional nylon FDY fiber according to an FDY process;
the included angles of the central lines of the three blades of the same trilobal spinneret orifice are different, the minimum included angle is 50 degrees, the degrees of the other two included angles are the same, the length and the width of the three blades are the same, and the ratio of the length to the width is 2.8: 1; the three leaves of different trilobal spinneret orifices have the same shape and size; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf of each trilobal spinneret orifice, which is opposite to the minimum included angle, passes through the circle center and points away from the circle center;
the parameters of the FDY process are as follows: the spinning temperature is 285 ℃, the cooling temperature is 18 ℃, the cooling air speed is 1.82m/s, the one-roller speed is 1830m/min, the one-roller temperature is 85 ℃, the two-roller speed is 3320m/min, the two-roller temperature is 137 ℃, and the winding speed is 3250 m/min;
the breaking strength of the prepared functional nylon FDY fiber is 2.9cN/dtex, the elongation at break is 49.2%, the single filament number is 1.2dtex, the crimp shrinkage is 33%, the crimp stability is 78%, the shrinkage elongation is 66%, and the crimp elastic recovery is 75%;
the gram weight of the prepared seat fabric is 253g/m2The drip diffusion time was 2.4s, the wicking height was 12.5cm, and the flow resistance was 0.5KPa s/m.
Example 3
A preparation method of seat fabric adopts functional chinlon FDY fiber as a raw material, and comprises the following process flows of: weaving → pretreatment → dyeing → drying → sanding → shaping; wherein the drying temperature is 98 ℃, and the drying time is 20 min;
the preparation process of the functional chinlon FDY fiber comprises the following steps:
extruding a polyamide melt with the intrinsic viscosity of 2.33dL/g from a trilobal spinneret orifice on a spinneret plate, cooling by adopting circular blowing, and preparing functional nylon FDY fiber according to an FDY process;
the included angles of the center lines of the three blades of the same trilobal spinneret orifice are different, the minimum included angle is 55 degrees, the degrees of the other two included angles are the same, the length and the width of the three blades are the same, and the ratio of the length to the width is 2.9: 1; the three leaves of different trilobal spinneret orifices have the same shape and size; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf of each trilobal spinneret orifice, which is opposite to the minimum included angle, passes through the circle center and points away from the circle center;
the parameters of the FDY process are as follows: the spinning temperature is 287 ℃, the cooling temperature is 20 ℃, the cooling air speed is 1.84m/s, the first roller speed is 1850m/min, the first roller temperature is 87 ℃, the second roller speed is 3380m/min, the second roller temperature is 139 ℃ and the winding speed is 3300 m/min;
the breaking strength of the prepared functional nylon FDY fiber is 3.0cN/dtex, the elongation at break is 47.7%, the single filament number is 1.1dtex, the crimp shrinkage is 34%, the crimp stability is 80%, the shrinkage elongation is 67%, and the crimp elastic recovery is 77%;
the gram weight of the prepared seat fabric is 258g/m2The drip diffusion time was 2.2s, the wicking height was 12.5cm, and the flow resistance was 0.4KPa s/m.
Example 4
A preparation method of seat fabric adopts functional chinlon FDY fiber as a raw material, and comprises the following process flows of: weaving → pretreatment → dyeing → drying → sanding → shaping; wherein the drying temperature is 100 ℃ and the drying time is 30 min;
the preparation process of the functional chinlon FDY fiber comprises the following steps:
extruding a polyamide melt with the intrinsic viscosity of 2.35dL/g from a trilobal spinneret orifice on a spinneret plate, cooling by adopting circular blowing, and preparing functional nylon FDY fiber according to an FDY process;
the included angles of the center lines of the three blades of the same trilobal spinneret orifice are different, the minimum included angle is 60 degrees, the degrees of the other two included angles are the same, the length and the width of the three blades are the same, and the ratio of the length to the width is 3.1: 1; the three leaves of different trilobal spinneret orifices have the same shape and size; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf of each trilobal spinneret orifice, which is opposite to the minimum included angle, passes through the circle center and points away from the circle center;
the parameters of the FDY process are as follows: the spinning temperature is 287 ℃, the cooling temperature is 19 ℃, the cooling wind speed is 1.97m/s, the one-roller speed is 1870m/min, the one-roller temperature is 90 ℃, the two-roller speed is 3390m/min, the two-roller temperature is 141 ℃, and the winding speed is 3340 m/min;
the breaking strength of the prepared functional nylon FDY fiber is 3.1cN/dtex, the elongation at break is 45.3%, the single filament number is 1.3dtex, the crimp shrinkage is 34%, the crimp stability is 80%, the shrinkage elongation is 66%, and the crimp elastic recovery is 78%;
the gram weight of the prepared seat fabric is 267g/m2The drip diffusion time was 2.0s, the wicking height was 12.6cm, and the flow resistance was 0.4KPa s/m.
Example 5
A preparation method of seat fabric adopts functional chinlon FDY fiber as a raw material, and comprises the following process flows of: weaving → pretreatment → dyeing → drying → sanding → shaping; wherein the drying temperature is 103 ℃ and the drying time is 30 min;
the preparation process of the functional chinlon FDY fiber comprises the following steps:
extruding a polyamide melt with the intrinsic viscosity of 2.36dL/g from a trilobal spinneret orifice on a spinneret plate, cooling by adopting circular blowing, and preparing functional nylon FDY fiber according to an FDY process;
the included angles of the center lines of the three blades of the same trilobal spinneret orifice are different, the minimum included angle is 60 degrees, the degrees of the other two included angles are the same, the length and the width of the three blades are the same, and the ratio of the length to the width is 3.1: 1; the three leaves of different trilobal spinneret orifices have the same shape and size; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf of each trilobal spinneret orifice, which is opposite to the minimum included angle, passes through the circle center and points away from the circle center;
the parameters of the FDY process are as follows: the spinning temperature is 288 ℃, the cooling temperature is 20 ℃, the cooling air speed is 2.08m/s, the first-roller speed is 1890m/min, the first-roller temperature is 90 ℃, the second-roller speed is 3410m/min, the second-roller temperature is 145 ℃, and the winding speed is 3370 m/min;
the breaking strength of the prepared functional nylon FDY fiber is 3.1cN/dtex, the elongation at break is 43.3%, the single filament number is 1.3dtex, the crimp shrinkage is 36%, the crimp stability is 81%, the shrinkage elongation is 68%, and the crimp elastic recovery is 78%;
is made intoThe gram weight of the seat fabric is 278g/m2The drip diffusion time was 1.8s, the wicking height was 12.7cm, and the flow resistance was 0.3KPa s/m.
Example 6
A preparation method of seat fabric adopts functional chinlon FDY fiber as a raw material, and comprises the following process flows of: weaving → pretreatment → dyeing → drying → sanding → shaping; wherein the drying temperature is 108 ℃, and the drying time is 28 min;
the preparation process of the functional chinlon FDY fiber comprises the following steps:
extruding a polyamide melt with the intrinsic viscosity of 2.38dL/g from a trilobal spinneret orifice on a spinneret plate, cooling by adopting circular blowing, and preparing functional nylon FDY fiber according to an FDY process;
the included angles of the center lines of the three blades of the same trilobal spinneret orifice are different, the minimum included angle is 72 degrees, the degrees of the other two included angles are the same, the length and the width of the three blades are the same, and the ratio of the length to the width is 3.2: 1; the three leaves of different trilobal spinneret orifices have the same shape and size; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf of each trilobal spinneret orifice, which is opposite to the minimum included angle, passes through the circle center and points away from the circle center;
the parameters of the FDY process are as follows: the spinning temperature is 290 ℃, the cooling temperature is 21 ℃, the cooling air speed is 2.15m/s, the first-roller speed is 1960m/min, the first-roller temperature is 94 ℃, the second-roller speed is 3430m/min, the second-roller temperature is 147 ℃, and the winding speed is 3390 m/min;
the breaking strength of the prepared functional nylon FDY fiber is 3.2cN/dtex, the elongation at break is 42.1%, the single filament number is 1.5dtex, the crimp shrinkage is 36%, the crimp stability is 82%, the shrinkage elongation is 71%, and the crimp elastic recovery is 79%;
the gram weight of the prepared seat fabric is 289g/m2The drip diffusion time was 1.8s, the wicking height was 12.7cm, and the flow resistance was 0.3KPa s/m.
Example 7
A preparation method of seat fabric adopts functional chinlon FDY fiber as a raw material, and comprises the following process flows of: weaving → pretreatment → dyeing → drying → sanding → shaping; wherein the drying temperature is 112 ℃, and the drying time is 28 min;
the preparation process of the functional chinlon FDY fiber comprises the following steps:
extruding a polyamide melt with the intrinsic viscosity of 2.4dL/g from a trilobal spinneret orifice on a spinneret plate, cooling by adopting circular blowing, and preparing functional nylon FDY fiber according to an FDY process;
the included angles of the center lines of the three blades of the same trilobal spinneret orifice are different, the minimum included angle is 80 degrees, the degrees of the other two included angles are the same, the length and the width of the three blades are the same, and the ratio of the length to the width is 3.3: 1; the three leaves of different trilobal spinneret orifices have the same shape and size; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf of each trilobal spinneret orifice, which is opposite to the minimum included angle, passes through the circle center and points away from the circle center;
the parameters of the FDY process are as follows: the spinning temperature is 290 ℃, the cooling temperature is 22 ℃, the cooling wind speed is 2.22m/s, the one-roller speed is 1980m/min, the one-roller temperature is 93 ℃, the two-roller speed is 3450m/min, the two-roller temperature is 150 ℃, and the winding speed is 3410 m/min;
the breaking strength of the prepared functional nylon FDY fiber is 3.3cN/dtex, the elongation at break is 41.2%, the single filament number is 1.5dtex, the crimp shrinkage is 36%, the crimp stability is 82%, the shrinkage elongation is 72%, and the crimp elastic recovery is 80%;
the gram weight of the prepared seat fabric is 290g/m2The drip diffusion time was 1.6s, the wicking height was 12.8cm, and the flow resistance was 0.3KPa s/m.
Example 8
A preparation method of seat fabric adopts functional chinlon FDY fiber as a raw material, and comprises the following process flows of: weaving → pretreatment → dyeing → drying → sanding → shaping; wherein the drying temperature is 120 ℃, and the drying time is 24 min;
the preparation process of the functional chinlon FDY fiber comprises the following steps:
extruding a polyamide melt with the intrinsic viscosity of 2.4dL/g from a trilobal spinneret orifice on a spinneret plate, cooling by adopting circular blowing, and preparing functional nylon FDY fiber according to an FDY process;
the included angles of the center lines of the three blades of the same trilobal spinneret orifice are different, the minimum included angle is 90 degrees, the degrees of the other two included angles are the same, the length and the width of the three blades are the same, and the ratio of the length to the width is 3.5: 1; the three leaves of different trilobal spinneret orifices have the same shape and size; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf of each trilobal spinneret orifice, which is opposite to the minimum included angle, passes through the circle center and points away from the circle center;
the parameters of the FDY process are as follows: the spinning temperature is 290 ℃, the cooling temperature is 22 ℃, the cooling air speed is 2.3m/s, the speed of one roller is 2000m/min, the temperature of one roller is 95 ℃, the speed of two rollers is 3500m/min, the temperature of two rollers is 150 ℃, and the winding speed is 3420 m/min;
the breaking strength of the prepared functional nylon FDY fiber is 3.3cN/dtex, the elongation at break is 40%, the filament number is 1.2dtex, the crimp shrinkage is 36%, the crimp stability is 82%, the shrinkage elongation is 72%, and the crimp elastic recovery is 80%;
the gram weight of the prepared seat fabric is 300g/m2The drip diffusion time was 1.5s, the wicking height was 12.8cm, and the flow resistance was 0.3KPa s/m.
Claims (6)
1. A preparation method of seat fabric is characterized by comprising the following steps: the raw material is functional chinlon FDY fiber, and the process flow is as follows: weaving → pretreatment → dyeing → drying → sanding → shaping;
the preparation process of the functional chinlon FDY fiber comprises the following steps:
extruding a polyamide melt from trilobal spinneret orifices on a spinneret plate, cooling by adopting circular blowing, and preparing functional nylon FDY fiber with a three-dimensional curling form according to an FDY process, wherein the filament number of the functional nylon FDY fiber is 1.0-1.5 dtex, the curling shrinkage rate is 33-36%, the curling stability is 78-82%, the shrinkage elongation is 65-72%, and the elastic recovery rate of curling is 75-80%;
the included angle ratio of the center lines of the three leaves of the same trilobal spinneret orifice is 1.0: 1.5-3.1, the minimum included angle is 50-90 degrees, the degrees of the other two included angles are the same, the length and the width of the three leaves are the same, and the ratio of the length to the width is 2.5-3.5: 1; the three leaves of different trilobal spinneret orifices have the same shape and size;
all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the leaf of each trilobal spinneret orifice, which is opposite to the minimum included angle, passes through the circle center and points away from the circle center;
in the parameters of the FDY process, the cooling temperature is 17-22 ℃, and the cooling air speed is 1.80-2.30 m/s.
2. The preparation method of the seat fabric according to claim 1, wherein the drying temperature is 90-120 ℃ and the drying time is 20-30 min.
3. The method for preparing the seat fabric according to claim 1, wherein the intrinsic viscosity of the polyamide melt is 2.30-2.40 dL/g.
4. The method of claim 3, wherein the FDY process parameters further comprise: the spinning temperature is 285-290 ℃, the one-roller speed is 1800-2000 m/min, the one-roller temperature is 85-95 ℃, the two-roller speed is 3300-3500 m/min, the two-roller temperature is 135-150 ℃, and the winding speed is 3230-3410 m/min.
5. The preparation method of the seat fabric according to claim 1, wherein the breaking strength of the functional nylon FDY fiber is more than or equal to 2.9cN/dtex, and the elongation at break is 45.0 +/-5.0%.
6. The preparation method of the seat fabric according to any one of claims 1 to 5, wherein the gram weight of the seat fabric is 250 to 300g/m2The dripping diffusion time is less than or equal to 2.5s, the wicking height is 12.3-12.8 cm, and the flow resistance is 0.3-0.5 KPa s/m.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201704433U (en) * | 2010-05-18 | 2011-01-12 | 福建卡冠纤维科技有限公司 | Super bright chinlon special-shaped monofilament |
| CN203583036U (en) * | 2013-11-14 | 2014-05-07 | 浙江益南纤维科技有限公司 | Spinneret plate for three-leaf bright yarn |
| CN109177390A (en) * | 2018-07-13 | 2019-01-11 | 桐乡市龙翔纺织有限责任公司 | A kind of imitative calf leather shell material production technology of environmental protection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009133025A (en) * | 2007-11-29 | 2009-06-18 | Toray Ind Inc | Spinneret of thermoplastic modified cross-section fiber and method for producing thermoplastic modified cross-section fiber |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201704433U (en) * | 2010-05-18 | 2011-01-12 | 福建卡冠纤维科技有限公司 | Super bright chinlon special-shaped monofilament |
| CN203583036U (en) * | 2013-11-14 | 2014-05-07 | 浙江益南纤维科技有限公司 | Spinneret plate for three-leaf bright yarn |
| CN109177390A (en) * | 2018-07-13 | 2019-01-11 | 桐乡市龙翔纺织有限责任公司 | A kind of imitative calf leather shell material production technology of environmental protection |
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