CN111041678A - Preparation method of double-sided different-velvet fiber fabric - Google Patents
Preparation method of double-sided different-velvet fiber fabric Download PDFInfo
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/02—Pile fabrics or articles having similar surface features
- D04B1/04—Pile fabrics or articles having similar surface features characterised by thread material
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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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
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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
- 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
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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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
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C27/00—Compound processes or apparatus, for finishing or dressing textile fabrics, not otherwise provided for
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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
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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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
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/01—Surface features
- D10B2403/012—Alike front and back faces
- D10B2403/0121—Two hairy surfaces, e.g. napped or raised
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- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention relates to a preparation method of a double-sided different-velvet fiber fabric, which adopts cation terylene fully drawn yarns as velvet raw materials and CDP FDY yarns as bottom yarnsThe raw materials are subjected to warping, warp knitting and slitting to prepare grey cloth, and then the grey cloth is subjected to napping, front-side ironing, back-side carding, shearing, primary grain shaking, presetting, dyeing, ironing, secondary grain shaking and sizing to obtain the double-sided different-velvet fiber fabric, wherein the preparation process of the cationic terylene fully drawn yarn comprises the following steps: extruding CDP melt from trilobal spinneret orifices on a spinneret plate, cooling by adopting circular blowing, and preparing FDY yarns according to an FDY process to obtain cationic polyester fully drawn yarns; the gram weight of the prepared double-sided different-velvet fiber fabric is 200-250 g/m2The wicking height is 11.6-12.7 cm, and the thermal resistance is 0.40-0.43 Km2The volume/weight ratio of the soft leather is 4.5-5.0, and the softness is 4.5-5.0.
Description
Technical Field
The invention belongs to the technical field of polyester fibers, and relates to a preparation method of a double-sided different-velvet fiber fabric.
Background
In the preparation of the double-sided different-pile fabric, chemical fibers are generally adopted as raw materials, and the double-sided different-pile fabric is prepared by the procedures of napping, shearing, raising and the like after being woven into grey cloth, and is applied to various aspects such as dust-free wiping cloth, home textiles, clothes and the like. Most of clothes made of double-sided different-velvet fabrics are worn in autumn and winter, and the velvet surface gives people a comfortable, soft and warm feeling, but the double-sided different-velvet fabrics are made of chemical fibers, so that the clothes have the problems of poor moisture absorption and insufficient heat retention.
Therefore, the development of the double-sided different-velvet fabric which can meet the rich hand feeling required by autumn and winter use and has better hygroscopicity and heat retention is of great significance.
Disclosure of Invention
The invention provides a preparation method of a double-sided different-velvet fiber fabric, and aims to solve the problem of how to further improve the moisture absorption and heat retention of the double-sided different-velvet fabric in the prior art.
In order to achieve the purpose, the invention adopts the following scheme:
a preparation method of double-sided different-pile fiber fabric adopts cation terylene fully drawn yarns as raw material of down yarns and CDP FDY yarns (the cross section is circular) as raw material of bottom yarns, the two are warped, warp knitted and cut into width to prepare grey cloth, the grey cloth is napped (the grey cloth is sent into a carding machine for front-side carding, the rotating speed of a carding roller of the carding machine is controlled, the advancing speed of the grey cloth is controlled, then the napper is introduced to pull part of the down yarns on the front side to the back side, the number of napping times and the advancing speed of the grey cloth are controlled), front-side ironing (the grey cloth is introduced into an ironing machine for front-side ironing treatment, the ironing temperature, the pressure and the time are controlled, the grey cloth with the front side being a flannel surface is obtained), back-side carding (the grey cloth is introduced into the carding machine after unreeling for carding of the grey cloth, the rotating speed of a carding roller of the carding machine is controlled, and the advancing speed of the grey, Shearing (the grey cloth enters a shearing machine after the back side is combed to shear the back side), primary granule shaking (the grey cloth is introduced into a granule shaking machine to shake the granules on the back side to obtain a rough mixed fabric of which the back side is the polar fleece), presetting (the rough mixed fabric is sent into a setting machine to be heated and set for the first time, the temperature of heat setting is controlled, and the time of heat setting is controlled), dyeing (the rough mixed fabric is put into a dye vat to be bleached, then water is changed and heated for dyeing, a softening agent is added to carry out upper soft treatment, dewatering is carried out after the upper soft treatment is carried out for half an hour, secondary heating setting is carried out, drying the fabric), blanching (the rough mixed fabric is introduced into a blanching machine to be blanched on the back side of the polar fleece), secondary granule shaking (the grey mixed fabric is introduced into the granule shaking machine to be shaken on the front side to obtain a refined mixed fabric of which the front side is the flange fleece) and setting (the refined mixed, finally obtaining a double-sided different-velvet fiber fabric with flannel on the front side and polar fleece on the back side) to obtain a double-sided different-velvet fiber fabric;
the wool yarn is prepared by heat treatment and twisting of cation polyester fully drawn yarn;
the preparation process of the cationic polyester fully drawn yarn comprises the following steps: extruding CDP melt from trilobal spinneret orifices on a spinneret plate, cooling by adopting circular blowing, and preparing FDY yarns according to an FDY process to obtain cationic polyester fully drawn yarns;
the length ratio of the shortest leaf to the longest leaf of the trilobal spinneret orifice is 1.0: 1.5-2.5, the length of the longest leaf is fixed, the length ratio of the two shortest leaves is randomly distributed between 1-1.4, the widths of all the trilobes are the same, the ratio of the shortest length to the width of the shortest leaf is 2.5-3.5: 1, and the included angle of the central lines of the two adjacent leaves is 120 degrees;
all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center;
namely, a plurality of trilobal spinneret orifices are arranged on a spinneret plate, each trilobal spinneret orifice comprises a leaf I, a leaf II and a leaf III, the leaf I in different trilobal spinneret orifices is the shortest leaf in the trilobal, the leaf III is the longest leaf in the trilobal, and the lengths of the leaves III of all the trilobal spinneret orifices are the same; the length ratio (obtained by dividing a larger value by a smaller value) of the leaves I and the leaves II of all the trilobal spinneret orifices is randomly distributed between 1 and 1.4; in the same trilobal spinneret orifice, the length ratio of the leaf I, the leaf II and the leaf III is 1.0: 1.0-1.4: 1.5-2.5; the widths of the leaves I, II and III of the same trilobal spinneret orifice are the same, and the widths of the leaves I, II and III of different trilobal spinneret orifices are the same; the ratio of the length to the width of the leaf I of the trefoil spinneret orifice with the shortest leaf I length is 2.5-3.5: 1 in all the trefoil spinneret orifices; in each trilobal spinneret orifice, the included angle between the central lines of the blades I and II is 120 degrees, the included angle between the central lines of the blades II and III is 120 degrees, and the included angle between the central lines of the blades I and III is 120 degrees; the center lines of the blades III of all the trilobal spinneret orifices pass through the circle center, and in the same trilobal spinneret orifice, the distances between the blade III and the circle center are smaller relative to the distances between the blades I and II.
As a preferred technical scheme:
according to the preparation method of the double-sided different-velvet fiber fabric, the content of the cationic terylene fully drawn yarns in the grey cloth is 60-70 wt%.
According to the preparation method of the double-sided different-velvet fiber fabric, the heat treatment temperature is 90-120 ℃; the twist degree of the twisting is 20-50 twist/10 cm.
According to the preparation method of the double-sided different-velvet fiber fabric, the intrinsic viscosity of the CDP melt is 0.63-0.68 dL/g.
According to the preparation method of the double-sided different-velvet fiber fabric, in the preparation process of the CDP, the feeding amount of the SIPA is 1.2-2.5 mol% of the feeding amount of the PTA.
According to the preparation method of the double-sided different-velvet fiber fabric, the parameters of the FDY process are as follows: the spinning temperature is 280-285 ℃, the cooling temperature is 20-25 ℃, the cooling air speed is 1.80-2.00 m/s, the one-roller speed is 2000-2200 m/min, the one-roller temperature is 85-90 ℃, the two-roller speed is 3000-3200 m/min, the two-roller temperature is 150-160 ℃, and the winding speed is 2920-3110 m/min.
According to the preparation method of the double-sided different-velvet fiber fabric, after heat treatment, the cationic polyester fully-drawn yarns have the crimp shrinkage of 25-28%, the crimp stability of 76-79%, the shrinkage elongation of 65-67% and the crimp elastic recovery of 84-86% according to GB/T6506-2001.
According to the preparation method of the double-sided different-velvet fiber fabric, before heat treatment, the breaking strength of the cationic polyester fully-drawn yarns is more than or equal to 2.7cN/dtex, the breaking elongation is 55.0 +/-5.0%, and the total titer is 150-200 dtex.
The invention also provides a preparation method of the double-sided different-velvet fiber fabric, and in the finally prepared double-sided different-velvet fiber fabric, the cationic terylene fully drawn yarns have a three-dimensional crimp shape and a trilobal cross section; the gram weight of the double-sided different-velvet fiber fabric is 200-250 g/m2The wicking height is 11.6-12.7 cm, and the thermal resistance is 0.40-0.43 Km2The volume/weight ratio of the soft leather is 4.5-5.0, and the softness is 4.5-5.0.
The principle of the invention is as follows:
the cationic polyester fully drawn yarn is prepared according to an FDY process, CDP melt is extruded from trilobal spinneret orifices with unequal trefoil lengths on the same spinneret plate, the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center, and meanwhile, circular blowing is adopted for cooling; wherein, the cooling air blow is over against the longest leaf in the trefoil, and the trefoil cooling condition is seriously asymmetric and unbalanced. Because the trilobal in the spinneret orifice that adopts is asymmetric structure, and the longest leaf of trilobal spinneret orifice is the windward at last, and other two leaves contact with the windward side earlier for the fibre is from spouting the back, and the cooling rate of the fuse-element of different positions on the cross section is inconsistent, mainly reflects in: during spinning, the cooling air speed is high and is between 1.80 and 2.00m/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 two of the three-lobed shapes in the trilobal spinneret orifices are facing the cooling wind, the melt of the one lobe cools faster, while the other lobe cools slower. Under the action of the tension of the drafting, the other leaf in the trilobal shape is easier to draft and thin, and the stress is more concentrated, so that a trilobal stress asymmetric structure can appear on a fiber trefoil cross section, the fiber with asymmetric stress and thickness on the cross section can present three-dimensional curling performance in the heat treatment or stretching 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 self-curling performance of the cationic polyester fully-drawn yarns is specific to each fiber, the cationic polyester fully-drawn yarns are adopted as one of raw materials, and double-sided different-velvet fiber fabrics are obtained through weaving, napping, front-side ironing, back-side combing, shearing, primary napping, presetting, dyeing, ironing, secondary napping and shaping, the cationic polyester fully-drawn yarns in the double-sided different-velvet fiber fabrics can be self-curled, hair bundles on the napped surface are flat, upright and not toppled, aggregation among fibers is reduced, excellent covering performance and plump handfeel are provided for the fabrics, a large amount of static air is formed in the fabrics, and the static air can isolate external cold air, so that the heat retention of the fabrics is improved; meanwhile, as a single fiber presents a special-shaped cross section (trilobal) structure, the fiber with the grooves can endow the fabric with good moisture absorption and moisture transmission performance (due to the wicking action of capillary tubes generated by the grooves), particularly, when the fiber with the grooves is self-curled, the same groove is turned inwards and outwards, so that a part which absorbs moisture firstly (usually the side facing the skin) can be turned to the outer side (the side facing the air) through the guiding action of the grooves, compared with the special-shaped cross section fiber in the prior art (the grooves of the single fiber usually face the same side), the cation polyester fully drawn yarn has higher moisture transmission and moisture discharge efficiency; therefore, the double-sided different-velvet fiber fabric prepared by the invention simultaneously realizes full hand feeling, heat retention, moisture absorption and moisture conductivity.
Has the advantages that:
(1) according to the preparation method of the double-sided different-velvet fiber fabric, CDP melt is extruded from trilobal spinneret orifices on a spinneret plate and then cooled by circular blowing, and the cationic terylene fully drawn yarn is prepared according to an FDY process and has self-curling performance;
(2) according to the preparation method of the double-sided different-velvet fiber fabric, the fibers with trilobal cross sections and self-curling characteristics are used as raw materials, so that the double-sided different-velvet fiber fabric is endowed with good heat retention, moisture absorption and moisture conductivity;
(3) according to the double-sided different-velvet fiber fabric, the raw materials and the process are reasonably selected, so that the whole fabric is full in hand feeling, and the comprehensive performance of the product is better.
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 shape of the trilobal spinneret orifice and the distribution schematic diagram of the spinneret orifice on the spinneret plate are shown in figures 1 and 2, the spinneret orifice on the spinneret plate is trilobal, the length ratio of the shortest leaf to the longest leaf of the trilobal spinneret orifice is 1.0: 1.5-2.5, the length of the longest leaf is fixed, the length ratio of the two shortest leaves is randomly distributed between 1-1.4, the widths of all the trilobals are the same, the ratio of the shortest length to the width of the shortest leaf is 2.5-3.5: 1, and the included angle of the central lines of the two adjacent leaves is 120 degrees; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center.
Fig. 1 and 2 are merely schematic and are not intended to limit the present invention.
Example 1
A preparation method of a double-sided different-velvet fiber fabric comprises the following steps:
(1) preparing the cationic polyester fully drawn yarn: extruding CDP melt (intrinsic viscosity of 0.66dL/g) from trilobal spinneret orifices on a spinneret plate, and cooling by circular blowing; wherein, the length ratio of the shortest leaf to the longest leaf of the trilobal spinneret orifices is 1.0:1.5, the length of the longest leaf is 0.18mm, and the length ratio of the two shorter leaves is randomly distributed (the number of the spinneret orifices is 24, starting from one trilobal spinneret orifice, the length ratio of the two shorter leaves of all the spinneret orifices is 1.3, 1.2, 1.3, 1.1, 1, 1.4, 1.1, 1.3, 1, 1.4, 1.1, 1.3, 1.1, 1.2, 1, 1.4, 1.1, 1.2 in sequence), the width of all the trilobals is the same, the ratio of the shortest length to the width of the shortest leaf is 3.3:1, and the included angle of the central lines of the two adjacent leaves is 120 degrees; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center; in the preparation process of CDP, the feeding amount of SIPA is 1.8 mol% of that of PTA;
(2) preparing FDY yarns according to an FDY process to obtain the cationic terylene fully drawn yarns; the parameters of the FDY process are as follows: the spinning temperature is 283 ℃, the cooling temperature is 23 ℃, the cooling air speed is 1.96m/s, the one-roller speed is 2120m/min, the one-roller temperature is 87 ℃, the two-roller speed is 3110m/min, the two-roller temperature is 158 ℃, and the winding speed is 3030 m/min;
(3) carrying out heat treatment and twisting on the cationic polyester fully drawn yarns prepared in the step (2) at 96 ℃ to prepare pile yarns, wherein the twist of the twisting is 36 twists/10 cm;
before heat treatment, the breaking strength of the cationic polyester fully drawn yarn is 2.78cN/dtex, the elongation at break is 58 percent, and the total titer is 200 dtex;
after heat treatment, the cationic polyester fully drawn yarn has the crimp shrinkage of 25%, the crimp stability of 79%, the shrinkage elongation of 65% and the crimp elastic recovery of 84%;
(4) adopting CDP FDY yarns as bottom yarn raw materials and adopting the pile yarns prepared in the step (3) to prepare grey cloth through warping, warp knitting and slitting; wherein the content of the cationic terylene fully drawn yarns in the grey cloth is 60 wt%;
(5) obtaining double-sided different-pile fiber fabric through napping, front-side ironing, back-side carding, shearing, primary grain shaking, presetting, dyeing, ironing, secondary grain shaking and shaping;
in the finally prepared double-sided different-velvet fiber fabric, the cationic terylene fully drawn yarns have a three-dimensional crimp shape, and the cross section of the cationic terylene fully drawn yarns is trilobal; the gram weight of the double-sided different-velvet fiber fabric is 250g/m2Wicking height of 11.6cm, thermal resistance of 0.43 Km2and/W, fullness and thickness of grade 5 and softness of grade 5.
Example 2
A preparation method of a double-sided different-velvet fiber fabric comprises the following steps:
(1) preparing the cationic polyester fully drawn yarn: extruding CDP melt (intrinsic viscosity of 0.64dL/g) from a trefoil spinneret orifice on a spinneret plate, and cooling by circular blowing; wherein, the length ratio of the three leaves of the trilobal spinneret orifices is 1.0:1.0:1.7, the length of the longest leaf is 0.20mm, and the length ratio of the two short leaves is randomly distributed (the number of the spinneret orifices is 18, starting from one trilobal spinneret orifice, the length ratio of the two short leaves of all the spinneret orifices is 1.3, 1.2, 1.3, 1.1, 1.3, 1.1, 1.2, 1, 1.4, 1.1, 1, 1.1 and 1.2 in sequence along the clockwise direction), the widths of all the trilobals are the same, the ratio of the shortest length of the shortest leaf to the width is 3:1, and the included angle of the central lines of two adjacent leaves is 120 degrees; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center; in the preparation process of CDP, the feeding amount of SIPA is 1.2 mol% of that of PTA;
(2) preparing FDY yarns according to an FDY process to obtain the cationic terylene fully drawn yarns; the parameters of the FDY process are as follows: the spinning temperature is 280 ℃, the cooling temperature is 20 ℃, the cooling wind speed is 1.83m/s, the one-roller speed is 2040m/min, the one-roller temperature is 85 ℃, the two-roller speed is 3010m/min, the two-roller temperature is 153 ℃, and the winding speed is 2930 m/min;
(3) carrying out heat treatment and twisting on the cationic polyester fully drawn yarns prepared in the step (2) at 106 ℃ to prepare pile yarns, wherein the twist of the twisting is 20 twists/10 cm;
before heat treatment, the breaking strength of the cationic polyester fully drawn yarn is 2.75cN/dtex, the elongation at break is 59 percent, and the total titer is 150 dtex;
after heat treatment, the cationic polyester fully drawn yarn has the crimp shrinkage of 27 percent, the crimp stability of 76 percent, the shrinkage elongation of 66 percent and the crimp elastic recovery of 86 percent;
(4) adopting CDP FDY yarns as bottom yarn raw materials and adopting the pile yarns prepared in the step (3) to prepare grey cloth through warping, warp knitting and slitting; wherein the content of the cationic terylene fully drawn yarns in the grey cloth is 70 wt%;
(5) obtaining double-sided different-pile fiber fabric through napping, front-side ironing, back-side carding, shearing, primary grain shaking, presetting, dyeing, ironing, secondary grain shaking and shaping;
in the finally prepared double-sided different-velvet fiber fabric, the cationic terylene fully drawn yarns have a three-dimensional crimp shape, and the cross section of the cationic terylene fully drawn yarns is trilobal; the gram weight of the double-sided different-velvet fiber fabric is 230g/m2Wicking height of 11.7cm, thermal resistance of 0.42 K.m2and/W, fullness and thickness of grade 5 and softness of grade 5.
Example 3
A preparation method of a double-sided different-velvet fiber fabric comprises the following steps:
(1) preparing the cationic polyester fully drawn yarn: extruding CDP melt (intrinsic viscosity of 0.65dL/g) from a trefoil spinneret orifice on a spinneret plate, and cooling by circular blowing; wherein, the length ratio of three leaves of the trilobal spinneret orifices is 1.0:1.3:1.9, the length of the longest leaf is 0.18mm, and the length ratio of the two short leaves is randomly distributed (the number of the spinneret orifices is 30, starting from one trilobal spinneret orifice, the length ratio of the two short leaves of all the spinneret orifices is sequentially 1.3, 1.2, 1, 1.1, 1.4, 1, 1.2, 1.3, 1.1, 1, 1.4, 1.1, 1.3, 1, 1.4, 1.1, 1.3, 1.2, 1, 1.4, 1.1, 1.2) along the clockwise direction, the width of all the trilobals is the same, the ratio of the shortest length of the shortest leaf to the width is 3.2:1, and the included angle of the central line of the adjacent two short leaves is 120 degrees; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center; in the preparation process of CDP, the feeding amount of SIPA is 2.5 mol% of that of PTA;
(2) preparing FDY yarns according to an FDY process to obtain the cationic terylene fully drawn yarns; the parameters of the FDY process are as follows: the spinning temperature is 282 ℃, the cooling temperature is 21 ℃, the cooling air speed is 1.87m/s, the one-roller speed is 2060m/min, the one-roller temperature is 86 ℃, the two-roller speed is 3070m/min, the two-roller temperature is 154 ℃, and the winding speed is 2990 m/min;
(3) carrying out heat treatment and twisting on the cationic polyester fully drawn yarns prepared in the step (2) at the temperature of 98 ℃ to prepare wool yarns, wherein the twist of the twisting is 37 twists/10 cm;
before heat treatment, the breaking strength of the cationic polyester fully drawn yarn is 2.84cN/dtex, the elongation at break is 53 percent, and the total titer is 176 dtex;
after heat treatment, the cationic polyester fully drawn yarn has the crimp shrinkage of 25%, the crimp stability of 79%, the shrinkage elongation of 66% and the crimp elastic recovery of 84%;
(4) adopting CDP FDY yarns as bottom yarn raw materials and adopting the pile yarns prepared in the step (3) to prepare grey cloth through warping, warp knitting and slitting; wherein the content of the cationic terylene fully drawn yarns in the grey cloth is 65 wt%;
(5) obtaining double-sided different-pile fiber fabric through napping, front-side ironing, back-side carding, shearing, primary grain shaking, presetting, dyeing, ironing, secondary grain shaking and shaping;
in the finally prepared double-sided different-velvet fiber fabric, the cationic terylene fully drawn yarns have a three-dimensional crimp shape, and the cross section of the cationic terylene fully drawn yarns is trilobal; the gram weight of the double-sided different-velvet fiber fabric is 214g/m2Wicking height of 12.2cm, thermal resistance of 0.4 K.m2and/W, fullness and thickness of 4.5 grade and softness of 4.5 grade.
Example 4
A preparation method of a double-sided different-velvet fiber fabric comprises the following steps:
(1) preparing the cationic polyester fully drawn yarn: extruding CDP melt (intrinsic viscosity is 0.67dL/g) from a trefoil spinneret orifice on a spinneret plate, and cooling by circular blowing; wherein, the length ratio of the three leaves of the trilobal spinneret orifices is 1.0:1.4:2.5, the length of the longest leaf is 0.20mm, and the length ratio of the two short leaves is randomly distributed (the number of the spinneret orifices is 42, starting from one trilobal spinneret orifice, along the clockwise direction, the length ratio of the two short leaves of all the spinneret orifices is 1.3, 1.2, 1.3, 1.1, 1, 1.4, 1.1, 1.3, 1.2, 1, 1.4, 1.1, 1.2, 1.1, 1.3, 1, 1.1, 1.4, 1.3, 1.2, 1.4, 1, 1.4, 1.3, 1.4, 1.3, 1.4, 3, 1.3, 3; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center; in the preparation process of CDP, the feeding amount of SIPA is 2.4 mol% of that of PTA;
(2) preparing FDY yarns according to an FDY process to obtain the cationic terylene fully drawn yarns; the parameters of the FDY process are as follows: the spinning temperature is 284 ℃, the cooling temperature is 24 ℃, the cooling wind speed is 1.99m/s, the one-roller speed is 2160m/min, the one-roller temperature is 88 ℃, the two-roller speed is 3120m/min, the two-roller temperature is 159 ℃, and the winding speed is 3040 m/min;
(3) carrying out heat treatment and twisting on the cation polyester fully drawn yarn prepared in the step (2) at 90 ℃ to prepare a wool yarn, wherein the twist of the twisting is 36 twists/10 cm;
before heat treatment, the breaking strength of the cationic polyester fully drawn yarn is 2.7cN/dtex, the elongation at break is 60 percent, and the total titer is 156 dtex;
after heat treatment, the cationic polyester fully drawn yarn has the crimp shrinkage of 26%, the crimp stability of 77%, the shrinkage elongation of 67% and the crimp elastic recovery of 85%;
(4) adopting CDP FDY yarns as bottom yarn raw materials and adopting the pile yarns prepared in the step (3) to prepare grey cloth through warping, warp knitting and slitting; wherein the content of the cationic terylene fully drawn yarns in the grey cloth is 70 wt%;
(5) obtaining double-sided different-pile fiber fabric through napping, front-side ironing, back-side carding, shearing, primary grain shaking, presetting, dyeing, ironing, secondary grain shaking and shaping;
in the finally prepared double-sided different-velvet fiber fabric, the cationic terylene fully drawn yarns have a three-dimensional crimp shape, and the cross section of the cationic terylene fully drawn yarns is trilobal; the gram weight of the double-sided different-velvet fiber fabric is 233g/m2Wicking height of 11.6cm, thermal resistance of 0.43 Km2and/W, fullness and thickness of grade 5 and softness of grade 5.
Example 5
A preparation method of a double-sided different-velvet fiber fabric comprises the following steps:
(1) preparing the cationic polyester fully drawn yarn: extruding CDP melt (intrinsic viscosity of 0.68dL/g) from trilobal spinneret orifices on a spinneret plate, and cooling by circular blowing; wherein, the length ratio of the three leaves of the trilobal spinneret orifice is 1.0:1.3:2.0, the length of the longest leaf is 0.18mm, and the length ratio of the two short leaves is randomly distributed (the number of the spinneret orifices is 24, starting from one trilobal spinneret orifice, along the clockwise direction, the length ratio of the two short leaves of all the spinneret orifices is 1.1, 1, 1.1, 1.3, 1, 1.2, 1.1, 1.2, 1.4, 1.1, 1.3, 1.1, 1.2, 1, 1.4, 1.1, 1.2), the widths of all the trilobals are the same, the ratio of the shortest length to the width of the shortest leaf is 2.6:1, and the included angle of the central lines of two adjacent leaves is 120 degrees; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center; in the preparation process of CDP, the feeding amount of SIPA is 1.7 mol% of that of PTA;
(2) preparing FDY yarns according to an FDY process to obtain the cationic terylene fully drawn yarns; the parameters of the FDY process are as follows: the spinning temperature is 285 ℃, the cooling temperature is 25 ℃, the cooling wind speed is 2m/s, the one-roller speed is 2200m/min, the one-roller temperature is 90 ℃, the two-roller speed is 3200m/min, the two-roller temperature is 160 ℃, and the winding speed is 3110 m/min;
(3) carrying out heat treatment and twisting on the cationic polyester fully drawn yarns prepared in the step (2) at 104 ℃ to prepare wool yarns, wherein the twist of the twisting is 29 twists/10 cm;
before heat treatment, the breaking strength of the cation terylene fully drawn yarn is 2.81cN/dtex, the elongation at break is 54 percent, and the total titer is 180 dtex;
after heat treatment, the cationic polyester fully drawn yarn has the crimp shrinkage of 26%, the crimp stability of 79%, the shrinkage elongation of 65% and the crimp elastic recovery of 85%;
(4) adopting CDP FDY yarns as bottom yarn raw materials and adopting the pile yarns prepared in the step (3) to prepare grey cloth through warping, warp knitting and slitting; wherein the content of the cationic terylene fully drawn yarns in the grey cloth is 68 wt%;
(5) obtaining double-sided different-pile fiber fabric through napping, front-side ironing, back-side carding, shearing, primary grain shaking, presetting, dyeing, ironing, secondary grain shaking and shaping;
in the finally prepared double-sided different-velvet fiber fabric, the cationic terylene fully drawn yarns have a three-dimensional crimp shape, and the cross section of the cationic terylene fully drawn yarns is trilobal; the gram weight of the double-sided different-velvet fiber fabric is 200g/m2Wicking height of 12.7cm, thermal resistance of 0.41 K.m2and/W, fullness and thickness of 4.5 grade and softness of 4.5 grade.
Example 6
A preparation method of a double-sided different-velvet fiber fabric comprises the following steps:
(1) preparing the cationic polyester fully drawn yarn: extruding CDP melt (intrinsic viscosity is 0.63dL/g) from a trefoil spinneret orifice on a spinneret plate, and cooling by circular blowing; wherein, the length ratio of the three leaves of the trilobal spinneret orifices is 1.0:1.1:2.2, the length of the longest leaf is 0.18mm, and the length ratio of the two short leaves is randomly distributed (the number of the spinneret orifices is 36, starting from one trilobal spinneret orifice, the length ratio of the two short leaves of all the spinneret orifices is sequentially 1.3, 1.2, 1.3, 1.1, 1, 1.4, 1.1, 1.3, 1, 1.4, 1.1, 1.3, 1.1, 1.2, 1, 1.4, 1.1, 1, 1.1, 1.2, 1, 1.4, 1.1, 1.2, 1.4), the width of all the trilobals is the same, the length of the shortest leaf is 120, the length of the shortest leaf is adjacent to the center line is 120 degrees; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center; in the CDP preparation process, the feeding amount of SIPA is 2 mol% of that of PTA;
(2) preparing FDY yarns according to an FDY process to obtain the cationic terylene fully drawn yarns; the parameters of the FDY process are as follows: the spinning temperature is 280 ℃, the cooling temperature is 20 ℃, the cooling air speed is 1.8m/s, the one-roller speed is 2000m/min, the one-roller temperature is 85 ℃, the two-roller speed is 3000m/min, the two-roller temperature is 150 ℃, and the winding speed is 2920 m/min;
(3) carrying out heat treatment and twisting on the cationic polyester fully drawn yarns prepared in the step (2) at 115 ℃ to prepare wool yarns, wherein the twist of the twisting is 28 twists/10 cm;
before heat treatment, the breaking strength of the cationic polyester fully drawn yarn is 2.81cN/dtex, the elongation at break is 56 percent, and the total titer is 176 dtex;
after heat treatment, the cationic polyester fully drawn yarn has the crimp shrinkage of 26%, the crimp stability of 79%, the shrinkage elongation of 65% and the crimp elastic recovery of 85%;
(4) adopting CDP FDY yarns as bottom yarn raw materials and adopting the pile yarns prepared in the step (3) to prepare grey cloth through warping, warp knitting and slitting; wherein the content of the cationic terylene fully drawn yarns in the grey cloth is 69 wt%;
(5) obtaining double-sided different-pile fiber fabric through napping, front-side ironing, back-side carding, shearing, primary grain shaking, presetting, dyeing, ironing, secondary grain shaking and shaping;
in the finally prepared double-sided different-velvet fiber fabric, the cationic terylene fully drawn yarns have a three-dimensional crimp shape, and the cross section of the cationic terylene fully drawn yarns is trilobal; the gram weight of the double-sided different-velvet fiber fabric is 215g/m2Wicking height of 11.9cm, thermal resistance of 0.42 K.m2and/W, fullness and thickness of 4.5 grade and softness of 5 grade.
Example 7
A preparation method of a double-sided different-velvet fiber fabric comprises the following steps:
(1) preparing the cationic polyester fully drawn yarn: extruding CDP melt (intrinsic viscosity of 0.64dL/g) from a trefoil spinneret orifice on a spinneret plate, and cooling by circular blowing; wherein, the length ratio of the three leaves of the trilobal spinneret orifice is 1.0:1.2:1.8, the length of the longest leaf is 0.18mm, and the length ratio of the two short leaves is randomly distributed (the number of the spinneret orifices is 30, starting from one trilobal spinneret orifice, the length ratio of the two short leaves of all the spinneret orifices is sequentially 1.3, 1.2, 1.3, 1.1, 1.4, 1, 1.2, 1.3, 1.1, 1, 1.4, 1.1, 1.3, 1, 1.4, 1.1, 1.3, 1.2, 1, 1.4, 1.1, 1, 1.1, 1.2, 1, 1.4, 1, 1.1, 1.2), the widths of all the trilobals are the same, the ratio of the shortest length and the width of the shortest leaf is 2.7:1, and the included angle of the central line of two adjacent leaves is 120 degrees; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center; in the preparation process of CDP, the feeding amount of SIPA is 2.5 mol% of that of PTA;
(2) preparing FDY yarns according to an FDY process to obtain the cationic terylene fully drawn yarns; the parameters of the FDY process are as follows: the spinning temperature is 280 ℃, the cooling temperature is 20 ℃, the cooling air speed is 1.87m/s, the one-roller speed is 2040m/min, the one-roller temperature is 85 ℃, the two-roller speed is 3040m/min, the two-roller temperature is 153 ℃, and the winding speed is 2960 m/min;
(3) carrying out heat treatment and twisting on the cationic polyester fully drawn yarns prepared in the step (2) at 120 ℃ to prepare pile yarns, wherein the twist of the twisting is 39 twists/10 cm;
before heat treatment, the breaking strength of the cationic polyester fully drawn yarn is 2.82cN/dtex, the elongation at break is 55%, and the total titer is 186 dtex;
after heat treatment, the cationic polyester fully drawn yarn has the crimp shrinkage of 28%, the crimp stability of 76%, the shrinkage elongation of 66% and the crimp elastic recovery of 87%;
(4) adopting CDP FDY yarns as bottom yarn raw materials and adopting the pile yarns prepared in the step (3) to prepare grey cloth through warping, warp knitting and slitting; wherein the content of the cationic terylene fully drawn yarns in the grey cloth is 70 wt%;
(5) obtaining double-sided different-pile fiber fabric through napping, front-side ironing, back-side carding, shearing, primary grain shaking, presetting, dyeing, ironing, secondary grain shaking and shaping;
in the finally prepared double-sided different-velvet fiber fabric, the cationic terylene fully drawn yarns have a three-dimensional crimp shape, and the cross section of the cationic terylene fully drawn yarns is trilobal; two-sided differentThe gram weight of the down fiber fabric is 211g/m2Wicking height of 12.5cm, thermal resistance of 0.42 K.m2and/W, fullness and thickness of 4.5 grade and softness of 4.5 grade.
Example 8
A preparation method of a double-sided different-velvet fiber fabric comprises the following steps:
(1) preparing the cationic polyester fully drawn yarn: extruding CDP melt (intrinsic viscosity of 0.65dL/g) from a trefoil spinneret orifice on a spinneret plate, and cooling by circular blowing; wherein the length ratio of three leaves of the trilobal spinneret orifices is 1.0:1.4:2.5, the length of the longest leaf is 0.20mm, the length ratio of the two shorter leaves is randomly distributed between 1-1.4 (the number of the spinneret orifices is 24, starting from one trilobal spinneret orifice, the length ratio of the two shorter leaves of all the spinneret orifices is 1.3, 1.2, 1.3, 1.1, 1.2, 1.3, 1.2, 1.1, 1.3, 1, 1.4, 1.1, 1.4, 1.2, 1.3, 1, 1.4, 1.1 and 1.2 in sequence along the clockwise direction), the widths of all the trilobals are the same, the ratio of the shortest length of the shortest leaf to the width is 3.5:1, and the included angle of the central lines of the adjacent two leaves is 120 degrees; all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center; in the preparation process of CDP, the feeding amount of SIPA is 1.2 mol% of that of PTA;
(2) preparing FDY yarns according to an FDY process to obtain the cationic terylene fully drawn yarns; the parameters of the FDY process are as follows: the spinning temperature is 282 ℃, the cooling temperature is 21 ℃, the cooling air speed is 1.92m/s, the speed of one roller is 2090m/min, the temperature of one roller is 86 ℃, the speed of two rollers is 3100m/min, the temperature of two rollers is 155 ℃, and the winding speed is 3020 m/min;
(3) carrying out heat treatment and twisting on the cationic polyester fully drawn yarns prepared in the step (2) at 106 ℃ to prepare pile yarns, wherein the twist of the twisting is 50 twists/10 cm;
before heat treatment, the breaking strength of the cation terylene fully drawn yarn is 2.85cN/dtex, the elongation at break is 50 percent, and the total titer is 180 dtex;
after heat treatment, the cationic polyester fully drawn yarn has 27 percent of crimp shrinkage, 77 percent of crimp stability, 66 percent of shrinkage elongation and 87 percent of crimp elastic recovery;
(4) adopting CDP FDY yarns as bottom yarn raw materials and adopting the pile yarns prepared in the step (3) to prepare grey cloth through warping, warp knitting and slitting; wherein, the content of the cationic terylene fully drawn yarn in the grey cloth is 67 wt%;
(5) obtaining double-sided different-pile fiber fabric through napping, front-side ironing, back-side carding, shearing, primary grain shaking, presetting, dyeing, ironing, secondary grain shaking and shaping;
in the finally prepared double-sided different-velvet fiber fabric, the cationic terylene fully drawn yarns have a three-dimensional crimp shape, and the cross section of the cationic terylene fully drawn yarns is trilobal; the gram weight of the double-sided different-velvet fiber fabric is 216g/m2Wicking height of 12cm, thermal resistance of 0.43 Km2and/W, fullness and thickness of 4.5 grade and softness of 4.5 grade.
Claims (9)
1. A preparation method of a double-sided different-velvet fiber fabric is characterized by comprising the following steps: adopting cationic polyester fully drawn yarns as a wool yarn raw material and CDP FDY yarns as a bottom yarn raw material, warping, warp knitting and slitting the two to prepare grey cloth, and then obtaining the double-sided different-wool fiber fabric through napping, front-side ironing, back-side carding, shearing, primary napping, presetting, dyeing, ironing, secondary napping and sizing;
the wool yarn is prepared by heat treatment and twisting of cation polyester fully drawn yarn;
the preparation process of the cationic polyester fully drawn yarn comprises the following steps: extruding CDP melt from trilobal spinneret orifices on a spinneret plate, cooling by adopting circular blowing, and preparing FDY yarns according to an FDY process to obtain cationic polyester fully drawn yarns;
the length ratio of the shortest leaf to the longest leaf of the trilobal spinneret orifice is 1.0: 1.5-2.5, the length of the longest leaf is fixed, the length ratio of the two shortest leaves is randomly distributed between 1-1.4, the widths of all the trilobes are the same, the ratio of the shortest length to the width of the shortest leaf is 2.5-3.5: 1, and the included angle of the central lines of the two adjacent leaves is 120 degrees;
all the trilobal spinneret orifices are distributed in concentric circles, and the center line of the longest leaf of each trilobal spinneret orifice passes through the circle center and points to the circle center.
2. The preparation method of the double-sided different-velvet fiber fabric according to claim 1, wherein the content of the cationic polyester fully-drawn yarns in the gray fabric is 60-70 wt%.
3. The preparation method of the double-sided different-pile fiber fabric according to claim 1, wherein the temperature of the heat treatment is 90-120 ℃; the twist degree of the twisting is 20-50 twist/10 cm.
4. The method of claim 1, wherein the intrinsic viscosity of the CDP melt is 0.63-0.68 dL/g.
5. The preparation method of double-sided different-pile fiber fabric according to claim 4, wherein in the preparation process of CDP, the input amount of SIPA is 1.2-2.5 mol% of the input amount of PTA.
6. The preparation method of the double-sided different-velvet fiber fabric according to claim 5, wherein the parameters of the FDY process are as follows: the spinning temperature is 280-285 ℃, the cooling temperature is 20-25 ℃, the cooling air speed is 1.80-2.00 m/s, the one-roller speed is 2000-2200 m/min, the one-roller temperature is 85-90 ℃, the two-roller speed is 3000-3200 m/min, the two-roller temperature is 150-160 ℃, and the winding speed is 2920-3110 m/min.
7. The preparation method of the double-sided different-pile fiber fabric according to claim 1, wherein after the heat treatment, the cationic polyester fully drawn yarn has a crimp shrinkage of 25-28%, a crimp stability of 76-79%, a shrinkage elongation of 65-67%, and a crimp elastic recovery of 84-86%.
8. The preparation method of the double-sided different-velvet fiber fabric according to claim 1, wherein before the heat treatment, the breaking strength of the cationic polyester fully-drawn yarns is more than or equal to 2.7cN/dtex, the elongation at break is 55.0 +/-5.0%, and the total fineness is 150-200 dtex.
9. The preparation method of the double-sided different-velvet fiber fabric according to any one of claims 1 to 8, wherein in the finally prepared double-sided different-velvet fiber fabric, the cationic polyester fully-drawn yarns have a three-dimensional crimp shape and a trilobal cross section; the gram weight of the double-sided different-velvet fiber fabric is 200-250 g/m2The wicking height is 11.6-12.7 cm, and the thermal resistance is 0.40-0.43 Km2The volume/weight ratio of the soft leather is 4.5-5.0, and the softness is 4.5-5.0.
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