CN114990758B - Preparation method of thick autumn and winter thermal elastic fabric containing Portel fibers - Google Patents
Preparation method of thick autumn and winter thermal elastic fabric containing Portel fibers Download PDFInfo
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- CN114990758B CN114990758B CN202210642089.6A CN202210642089A CN114990758B CN 114990758 B CN114990758 B CN 114990758B CN 202210642089 A CN202210642089 A CN 202210642089A CN 114990758 B CN114990758 B CN 114990758B
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- 238000004043 dyeing Methods 0.000 claims abstract description 92
- 238000010438 heat treatment Methods 0.000 claims abstract description 77
- 125000002091 cationic group Chemical group 0.000 claims abstract description 59
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- 238000000034 method Methods 0.000 claims abstract description 18
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- 238000004140 cleaning Methods 0.000 claims description 40
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- 238000012546 transfer Methods 0.000 claims description 17
- VDBBDYPELPDNGF-UHFFFAOYSA-N 2-[4-(4-cyano-3-methylphenoxy)phenyl]acetic acid Chemical compound C1=C(C#N)C(C)=CC(OC=2C=CC(CC(O)=O)=CC=2)=C1 VDBBDYPELPDNGF-UHFFFAOYSA-N 0.000 claims description 16
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- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/208—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based
- D03D15/217—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based natural from plants, e.g. cotton
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/30—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments
- D03D15/37—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments with specific cross-section or surface shape
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/52—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads thermal insulating, e.g. heating or cooling
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/56—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/0032—Determining dye recipes and dyeing parameters; Colour matching or monitoring
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/41—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using basic dyes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8223—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups
- D06P3/8228—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using one kind of dye
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
The application relates to a preparation method of a thick autumn and winter thermal elastic fabric containing Portel fibers, which comprises the steps of taking elastic core spun yarns containing Portel fibers as warp yarns and yarns consisting of cotton fibers as weft yarns, weaving the warp yarns and the weft yarns into the fabric, and then dyeing the fabric by adopting cationic dye to obtain the thick autumn and winter thermal elastic fabric containing Portel fibers; the dyeing process is as follows: firstly, adding the fabric into the dye liquor at the temperature of 30-40 ℃, then heating to 50-55 ℃ at the heating rate of 2.5-3 ℃/min, then preserving heat for 10-15 min, further heating to 65-75 ℃ at the heating rate of 1-1.5 ℃/min, preserving heat for 20-30 min, and finally, heating to 85-90 ℃ at the heating rate of 0.5 ℃/min, and preserving heat for 45-60 min. The method is simple, the hollow structure of the Portel fiber is less damaged, and the fabric has excellent performance.
Description
Technical Field
The application belongs to the technical field of fabrics, and relates to a preparation method of a thick autumn and winter warm-keeping elastic fabric containing Portel fibers.
Background
In addition to the moisture absorption, ventilation, soft texture, elasticity, close fit, no sense of any mind, the modern consumers pay more attention to the safety and functionality of the underwear fabric, wherein the warmth retention is a concern. The common fabric has certain hygroscopicity, but the capability of releasing moisture is poor, and more moisture on the fabric can be stuck on the body, so that the comfort is affected. Some fabrics are easy to deform and crease after being washed, and the wearing attractiveness is affected. With the development of technology, various thermal materials are continuously developed. At present, the thermal insulation material in the textile industry is developed rapidly as hollow fiber, and the variety is also very rich.
Natural hollow fibers include kapok, cotton, rabbit hair and the like, and hollow structures give them unique styles and properties of good warmth retention, light weight and the like, but kapok is poor in spinnability, pure cotton fabrics have some disadvantages such as wrinkling, heavy weight, less fluffy and limited rabbit hair quantity.
Those skilled in the art are working to study synthetic hollow fibers that can replace natural hollow fibers to solve the problems that exist with natural hollow fibers. The synthetic hollow fiber is made of terylene, chinlon, polypropylene and the like, the hollowness of the polyester filament with high hollowness which is present in the market can reach 35% -40%, the warmth retention property is improved by 60% -70% compared with that of the solid polyester filament with the same thickness, but the synthetic hollow fiber is light in weight and poor in hygroscopicity compared with that of the natural fiber, and the wearing feeling is uncomfortable. The literature (production of hollow polyester thermal fabric [ J ]. Cotton textile technology, 2020,48 (01): 69-71.) provides a thermal fabric with hollow polyester filaments interwoven with cotton, warp yarns are hollow polyester filaments, weft yarns are cotton yarns, after-finishing is carried out, the fabric is soft and comfortable, the color and luster are bright, the thermal property of the produced fabric is more than 2 times that of a common fabric, but the polyester component is dyed by adopting disperse dye, the hygroscopicity of the polyester is poor, static electricity is easy to generate, and the dyeing is required to be carried out under the high temperature condition.
The Portel fiber is a novel modified hollow polyester staple fiber, hydrophilic groups are introduced into the molecular structure of the novel modified hollow polyester staple fiber, so that the defects of poor hydrophilicity, easiness in static electricity generation and the like of common polyester fibers are overcome, and the novel modified hollow polyester staple fiber can be dyed by adopting cationic dye under normal pressure, has larger surface area and has higher moisture absorption rate than fibers made of other materials; because the fiber inner layer is of a hollow structure, the fabric has a thermal buffering function, is light in weight, and can maintain the body temperature of a wearer when the activity is low.
Therefore, the research on the preparation method of the thick autumn and winter thermal elastic fabric containing the Portel fibers has very important significance.
Disclosure of Invention
The application aims to solve the problems in the prior art and provides a preparation method of thick autumn and winter thermal elastic fabric containing Portel fibers.
In order to achieve the above purpose, the application adopts the following technical scheme:
the preparation method of the thick autumn and winter thermal elastic fabric containing the Portel fibers comprises the steps of taking elastic core spun yarns containing the Portel fibers as warp yarns, taking yarns consisting of cotton fibers as weft yarns, weaving the warp yarns and the weft yarns into the fabric, and then dyeing the fabric by adopting cationic dye to obtain the thick autumn and winter thermal elastic fabric containing the Portel fibers;
the cationic dye is a cationic dye capable of dyeing Portel fibers and simultaneously not capable of dyeing cotton fibers; the cationic dye for dyeing the Portel fiber has some characteristics, such as a monoazo structure of a heterocyclic ring system, the compatibility value is about 3, for example, cationic blue X-GRRL, cationic red 2GL, cationic dye brilliant blue RL and the like, the cationic dye has poor affinity to cotton fiber, cannot be dyed, and can avoid dyeing the cotton fiber;
the dyeing process is as follows: firstly, adding the fabric into the dye liquor at the temperature of 30-40 ℃, then heating to 50-55 ℃ at the heating rate of 2.5-3 ℃/min, then preserving heat for 10-15 min, further heating to 65-75 ℃ at the heating rate of 1-1.5 ℃/min, preserving heat for 20-30 min, and finally, heating to 85-90 ℃ at the heating rate of 0.5 ℃/min, and preserving heat for 45-60 min.
The conventional dyeing of the Portel fiber is usually carried out at 100 ℃, the dyeing temperature is higher, the maintenance of the hollow structure of the Portel fiber is not facilitated, and further, the full play of the effect of the Portel fiber is not facilitated, so that the application provides a novel dyeing mode, the dyeing of the Portel fiber can be carried out at the temperature of not more than 90 ℃, the damage of the high temperature to the hollow structure of the fiber in the dyeing process is reduced, and the specific mechanism is as follows: the dyeing method comprises the steps that a cationic dyeing seat is contained in a molecular group of a Portel fiber, ionic bonds are generated between the cationic dyeing seat and pigment cations in the dye to dye the Portel fiber, the glass transition temperature is about 80 ℃, when the temperature of a dye bath is close to the glass transition temperature, the free movement of a macromolecular chain is sensitive to the temperature, the movement of the macromolecular chain of the fiber is more intense when the temperature of the dye bath is further increased, a large number of dyeing seats are exposed to the dye in the dye bath, the diffusion rate of the dye is accelerated, the phenomenon of uneven dyeing is easily caused, the dyeing temperature is more similar to an upper dyeing area, the dyeing rate is slow, the level dyeing effect is difficult to achieve through transfer dyeing when the glass transition temperature is exceeded, and the uniformity and the proper heating rate of all parts are controlled when the conventional cationic dye is used for dip dyeing, so that the gradient heating dyeing is selected, the crystallization degree of the Portel fiber is lower, the structure contains sulfonic groups, and the dyeing is slowly performed within 10 ℃ above the glass transition temperature by using a stage heating mode;
the segment movement of the polymer is greatly affected by temperature, and the dyeing speed is increased by 30% when the temperature is higher than the vitrification temperature and the dye system with strong affinity with the fiber is increased at the temperature which is lower than the initial dyeing temperature, the dye system is gradually disintegrated, the dye is released, and is diffused and fixed into the fiber when the dyeing is performed, and the dye is uniformly adsorbed on a dyeing seat to a certain extent due to the existence of a buffer agent, so that the uneven dyeing phenomenon is avoided, and the application adopts staged dyeing;
in the dyeing process, the weft yarn is composed of cotton fibers, cationic dye is difficult to dye, port fibers are contained in warp yarns, the cationic dye is easy to dye, so that the weft yarn is light in color, the warp yarns are dark in color, warp floating points (front) are colored, weft floating points (back) are left white, the fabric has the style of jean fabric, meanwhile, due to the hollow structure of the Port fibers, the fabric has good moisture absorption and sweat release performance and warmth retention, is light in weight, is not easy to fade, and is suitable for being used as a thick autumn and winter warmth retention fabric.
As a preferable technical scheme:
according to the preparation method of the thick autumn and winter thermal elastic fabric containing Portel fibers, the dye liquor is obtained by adding the cationic dye, the AC-G, OP-10 and the anhydrous sodium sulfate into water, and then adjusting the pH value of a system to be 4.5-5.5, wherein the mass fraction of the cationic dye in the dye liquor is 2-4% owf, the concentration of the anhydrous sodium sulfate is 0.5-1G/L, the concentration of the AC-G is 3-4G/L, and the concentration of the OP-10 is 0.1-0.2/L; the addition of the auxiliary agent can promote dye molecules to permeate into the fibers, so that the thermal movement of the molecules at normal temperature is quickened, and the low-temperature dyeing is facilitated.
The preparation method of the thick autumn and winter thermal elastic fabric containing the Portel fibers has the bath ratio of 1:10-20 during dyeing.
The preparation method of the thick autumn and winter warm elastic fabric containing the Portel fibers comprises the steps of performing reduction cleaning after dyeing; the cleaning solution is obtained by adding sodium hydrosulfite, KFS and sodium hydroxide into water and then adjusting the pH value of the system to 8-9, wherein the concentration of the sodium hydrosulfite in the cleaning solution is 2-3 g/L, the concentration of the KFS is 1-2 g/L, and the concentration of the sodium hydroxide is 0.3-0.5 g/L; the temperature of the reduction cleaning is 70-80 ℃, the time is 10-15 min, and the bath ratio is 1:15-30.
The preparation method of the thick autumn and winter thermal elastic fabric containing the Portel fibers comprises the following steps of: feeding the polyurethane filaments with the thickness of 40D into a front roller on a ring spindle yarn machine, feeding the Portel fibers with the thickness of 320-350 dtex into a rear roller, merging the polyurethane filaments and the Portel fibers, and twisting in a twisting triangular area to obtain the elastic core spun yarn containing the Portel fibers with the twist coefficient of 300-330, wherein the drafting multiple of the polyurethane filaments is 3.5-4, the drafting multiple of the rear area is 1.1-1.2, and the pre-drafting multiple is 4-5.
According to the preparation method of the thick autumn and winter thermal elastic fabric containing the Portel fibers, the thickness of the warp is 10-15S/1, and the mass ratio of the Portel fibers to the spandex filaments in the warp is 92:8; the thickness of the weft yarn is 10-15S/1, and the thickness of cotton fiber in the weft yarn is 360-365 dtex.
According to the preparation method of the thick autumn and winter thermal elastic fabric containing the Portel fibers, the total tightness of the fabric is 60-70%, the organization structure is 3 up-1 down/left inclined or 2 up-1 down/left inclined, the spandex content in the fabric is 4-7 wt%, and the warp and weft densities are 60 multiplied by 42-64 multiplied by 50.
As described above, the preparation method of the thick autumn and winter thermal elastic fabric containing the Portel fibers has the advantages that the dye uptake of the thick autumn and winter thermal elastic fabric containing the Portel fibers is 80-95%, the rubbing fastness is more than 3 levels, the soaping fastness is more than 3 levels, the water absorption rate is 35-45%/s, the unidirectional transmission index is 150-200, the vertical wicking height is 70-80 mm, the thermal insulation rate is 28-34%, and the heat transfer coefficient is 15-22 w/m 2 At a temperature of between 0.32 and 0.45Clo, a thermal resistance of between 0.045 and 0.067m 2 C/w, wherein the test methods of water absorption rate, unidirectional transmission index and vertical wicking height are all referred to GB/T21655.2-2019, second part of evaluation of moisture absorption and quick drying Property of textiles: dynamic moisture transfer method, FZ/T01071-2008 "test method for textile capillary effect", test method for heat preservation rate, heat transfer coefficient, crohn's value and thermal resistance value are all referred to GB/T11048-1989 "test method for textile heat preservation property", and GB/T11048-2018 "test for thermal resistance and wet resistance under steady state condition of textile physiological comfort" (evaporation hot plate method), rubbing fastness test method is referred to GB/T3920-2008 "test for rubbing fastness of textile color fastness", and soaping fastness test method is referred to GB/T3921-2008 "test for soaping fastness of textile color fastness".
The beneficial effects are that:
(1) The preparation method is simple, is easy and convenient to operate, and saves energy and water;
(2) According to the preparation method, the hollow structure of the Portel fiber is good in maintainability in the dyeing process of the fabric, and the Portel fiber is dark and uniform in color;
(3) The fabric is dyed by adopting a cationic dye-dyed staged heating dyeing mode without alkali deweighting treatment;
(4) The Portel-containing fiber fabric prepared by the preparation method disclosed by the application has the advantages of good warmth retention property, light weight, good fastness and bright fabric color, and is suitable for being used as a thick autumn and winter warmth retention fabric.
Detailed Description
The application is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.
The anhydrous sodium sulfate in each of the following examples is sodium sulfate; the sodium hydrosulfite is sodium hydrosulfite.
Example 1
A preparation method of a thick autumn and winter thermal elastic fabric containing Portel fibers comprises the following specific steps:
(1) Preparing raw materials;
the warp yarn is elastic core-spun yarn containing Portel fibers, and the thickness of the warp yarn is 10S/1; the preparation process of the elastic core-spun yarn containing the Portel fiber comprises the following steps: feeding a spandex filament with the thickness of 40D into a front roller on a ring spindle yarn machine, feeding a Portel fiber with the thickness of 320dtex into a rear roller, merging the spandex filament with the Portel fiber, and twisting in a twisting triangular region to obtain an elastic core-spun yarn containing the Portel fiber with the twist coefficient of 300, wherein the drafting multiple of the spandex filament is 3.5, the rear region drafting multiple is 1.1, and the pre-drafting multiple is 4; the mass ratio of the Portel fiber to the spandex filament is 92:8;
the weft yarn is yarn composed of cotton fibers with the thickness of 360 dtex; the thickness of the weft yarn is 10S/1;
(2) Weaving the warp yarns and the weft yarns into a fabric;
the total tightness of the fabric is 60%, the organization structure is 3 and 1 is inclined at the top and bottom/left, and the warp and weft densities are 60 multiplied by 42;
(3) Dyeing;
firstly, adding the fabric prepared in the step (2) into a dye liquor at the temperature of 30 ℃, then heating to 50 ℃ at the heating rate of 2.5 ℃/min, then preserving heat for 15min, further heating to 65 ℃ at the heating rate of 1 ℃/min, then preserving heat for 30min, and finally, heating to 85 ℃ at the heating rate of 0.5 ℃/min, and then preserving heat for 60min; wherein the dye liquor is obtained by adding cationic dye, AC-G, OP-10 and anhydrous sodium sulphate into water and then regulating the pH value of the system to 4.5, the cationic dye is cationic blue X-GRRL, the mass fraction of the cationic dye in the dye liquor is 2% owf, the concentration of the anhydrous sodium sulphate is 0.5G/L, the concentration of the AC-G is 3G/L, and the concentration of OP-10 is 0.1/L; the bath ratio during dyeing is 1:10;
(4) Reduction cleaning;
after dyeing, carrying out reduction cleaning on the fabric obtained in the step (3), so as to obtain the thick autumn and winter warm-keeping elastic fabric containing Portel fibers; the cleaning solution is obtained by adding sodium hydrosulfite, KFS and sodium hydroxide into water and then adjusting the pH value of the system to 8, wherein the concentration of the sodium hydrosulfite in the cleaning solution is 2g/L, the concentration of the KFS is 1g/L, and the concentration of the sodium hydroxide is 0.3g/L; the temperature of the reduction cleaning is 70 ℃, the time is 15min, and the bath ratio is 1:15.
The prepared thick autumn and winter thermal insulation elastic fabric containing Portel fibers has the water absorption rate of 35%/s, the unidirectional transmission index of 150, the vertical wicking height of 70mm, the thermal insulation rate of 28%, and the heat transfer coefficient of 15w/m 2 At a temperature of 0.3Clo, a thermal resistance of 0.067m 2 The dye-uptake is 95 percent at the temperature/w, the rubbing fastness is 3-4 grade, and the soaping fastness is 4 grade.
Comparative example 1
A preparation method of a thick autumn and winter warm elastic fabric containing Portel fibers is basically the same as that in example 1, except that the step (3) is not gradient temperature rising dyeing, but directly dyeing for 120min at 100 ℃.
The water absorption rate of the prepared thick autumn and winter thermal elastic fabric containing Portel fibers is 25%/s, and the fabric is unidirectionally transferredThe index is 100, the vertical wicking height is 55mm, the heat preservation rate is 20%, and the heat transfer coefficient is 12w/m 2 At a temperature of 0.3Clo, a thermal resistance of 0.008m 2 The dye-uptake is 87% at the temperature/w, the rubbing fastness is 3-4 grade, and the soaping fastness is 4 grade.
Compared with example 1, the rubbing fastness and the soaping fastness of the comparative example 1 are similar to those of the example 1, the dyeing effect of the comparative example 1 is similar to that of the example 1, but the vertical wicking height, the water absorption rate and the heat preservation rate of the comparative example 1 are far smaller than those of the example 1, because the dyeing temperature of the comparative example 1 is higher, the time is longer, the hollow structure of the Portel fiber is damaged, the flooding color is more after dyeing, the hollow structure of the Portel fiber is damaged in the repeated reduction cleaning process, and the hollow structure of the Portel fiber is damaged due to the excessive tension and impact force in the dyeing process, so that the performance of the fabric is reduced.
Comparative example 2
The preparation method of the thick autumn and winter thermal elastic fabric containing Portel fibers is basically the same as that in the embodiment 1, and the difference is only in the step (3), wherein the step (3) specifically comprises the following steps: adding the fabric prepared in the step (2) into a dye liquor at the temperature of 30 ℃, then heating to 50 ℃ at the heating rate of 2.5 ℃/min for 8min, heating to 65 ℃ at the heating rate of 1 ℃/min, then preserving heat for 30min, and finally heating to 85 ℃ at the heating rate of 0.5 ℃/min for 60min; wherein the dye liquor is obtained by adding cationic dye, AC-G, OP-10 and anhydrous sodium sulphate into water and then regulating the pH value of the system to 4.5, the cationic dye is cationic blue X-GRRL, the mass fraction of the cationic dye in the dye liquor is 2% owf, the concentration of the anhydrous sodium sulphate is 0.5G/L, the concentration of the AC-G is 3G/L, and the concentration of OP-10 is 0.1/L; the bath ratio at dyeing is 1:10.
The prepared thick autumn and winter thermal insulation elastic fabric containing Portel fibers has the water absorption rate of 35%/s, the unidirectional transmission index of 150, the vertical wicking height of 70mm, the thermal insulation rate of 28%, and the heat transfer coefficient of 16w/m 2 At a temperature of 0.32Clo, a thermal resistance of 0.06m 2 The dyeing rate is 92 percent at the temperature of/w, the rubbing fastness is 3-4 grade, and the soaping fastness is 3-4 grade.
Compared with example 1, the dye uptake, heat preservation rate and heat transfer coefficient of comparative example 2 are similar to those of example 1, but the soaping fastness of comparative example 2 is lower than that of example 1, so that the color fastness is slightly weaker, because dye molecules mainly approach to the fiber interface along with the flowing of dye liquor in the initial stage of dyeing and heating, then diffuse to the fiber surface through self diffusion and are further adsorbed by the fiber surface, the heat preservation time is not too short, less dye molecules are adsorbed on the fiber surface in too short time, and when the temperature is increased, the movement of the dye molecules is aggravated, so that the dye molecules cannot be uniformly distributed on the fiber surface, and the uneven dyeing color fastness of the fabric is slightly lower.
Comparative example 3
The preparation method of the thick autumn and winter thermal elastic fabric containing Portel fibers is basically the same as that in the embodiment 1, and the difference is only in the step (3), wherein the step (3) specifically comprises the following steps: adding the fabric prepared in the step (2) into a dye liquor at the temperature of 30 ℃, then heating to 50 ℃ at the heating rate of 2.5 ℃/min, then preserving heat for 15min, heating to 65 ℃ at the heating rate of 1 ℃/min, then preserving heat for 35min, and finally, heating to 85 ℃ at the heating rate of 0.5 ℃/min, and then preserving heat for 60min; wherein the dye liquor is obtained by adding cationic dye, AC-G, OP-10 and anhydrous sodium sulphate into water and then regulating the pH value of the system to 4.5, the cationic dye is cationic blue X-GRRL, the mass fraction of the cationic dye in the dye liquor is 2% owf, the concentration of the anhydrous sodium sulphate is 0.5G/L, the concentration of the AC-G is 3G/L, and the concentration of OP-10 is 0.1/L; the bath ratio at dyeing is 1:10.
The prepared thick autumn and winter thermal insulation elastic fabric containing Portel fibers has the water absorption rate of 35%/s, the unidirectional transmission index of 150, the vertical wicking height of 73mm, the thermal insulation rate of 29%, and the heat transfer coefficient of 16w/m 2 At a temperature of 0.34Clo, a thermal resistance of 0.06m 2 The dyeing rate is 85 percent at the temperature of/w, the rubbing fastness is 3-4 grade, and the soaping fastness is 4 grade.
Compared with example 1, the dyeing performance of comparative example 3 has no obvious change, but the dye uptake is slightly low, the dyeing process is longer, because dye molecules can be adsorbed on the surface of the fiber and combined with the fiber at the dyeing temperature, and when the dyeing temperature is reached, the dye is better combined with the fiber, so that the dyed fiber has darker color and good fastness, the dyeing time is not easy to be too long at the stage, and the dye which is excessively adsorbed is separated from the surface of the fiber and returns to the dye bath after long-time dyeing, so that the dye uptake is reduced.
Comparative example 4
The preparation method of the thick autumn and winter thermal elastic fabric containing Portel fibers is basically the same as that in the embodiment 1, and the difference is only in the step (3), wherein the step (3) specifically comprises the following steps: adding the fabric prepared in the step (2) into a dye liquor at the temperature of 30 ℃, then heating to 50 ℃ at the heating rate of 2.5 ℃/min, then preserving heat for 15min, heating to 65 ℃ at the heating rate of 1 ℃/min, then preserving heat for 30min, and finally, heating to 95 ℃ at the heating rate of 0.5 ℃/min, and then preserving heat for 60min; wherein the dye liquor is obtained by adding cationic dye, AC-G, OP-10 and anhydrous sodium sulphate into water and then regulating the pH value of the system to 4.5, the cationic dye is cationic blue X-GRRL, the mass fraction of the cationic dye in the dye liquor is 2% owf, the concentration of the anhydrous sodium sulphate is 0.5G/L, the concentration of the AC-G is 3G/L, and the concentration of OP-10 is 0.1/L; the bath ratio at dyeing is 1:10.
The prepared thick autumn and winter thermal insulation elastic fabric containing Portel fibers has the water absorption rate of 30%/s, the unidirectional transmission index of 130, the vertical wicking height of 68mm, the thermal insulation rate of 27%, and the heat transfer coefficient of 14w/m 2 At a temperature of 0.3Clo, a thermal resistance of 0.06m 2 The dye-uptake is 94% at the temperature/w, the rubbing fastness is 3-4 grade, and the soaping fastness is 4 grade.
Compared to example 1, comparative example 4 has a lower heat retention and water absorption rate than example 1, resulting in comparative example 4 having slightly poorer heat retention and moisture absorption properties, because a large amount of dye is combined with the fiber to obtain a higher color depth when dyed at a higher temperature, but the dyeing temperature is higher and the duration is too long, which affects the moisture absorption and heat retention properties of the porel fiber to slightly lower the heat retention properties of the fabric.
Example 2
A preparation method of a thick autumn and winter thermal elastic fabric containing Portel fibers comprises the following specific steps:
(1) Preparing raw materials;
the warp yarn is elastic core-spun yarn containing Portel fibers, and the thickness of the warp yarn is 10S/1; the preparation process of the elastic core-spun yarn containing the Portel fiber comprises the following steps: feeding a spandex filament with the thickness of 40D into a front roller on a ring spindle yarn machine, feeding a Portel fiber with the thickness of 325dtex into a rear roller, merging the spandex filament with the Portel fiber, and twisting in a twisting triangle area to obtain an elastic core-spun yarn containing the Portel fiber with the twist coefficient of 305, wherein the drafting multiple of the spandex filament is 3.6, the rear area drafting multiple is 1.1, and the pre-drafting multiple is 4; the mass ratio of the Portel fiber to the spandex filament is 92:8;
the weft yarn is yarn composed of cotton fibers with the thickness of 361 dtex; the thickness of the weft yarn is 15S/1;
(2) Weaving the warp yarns and the weft yarns into a fabric;
the total tightness of the fabric is 65%, the organization structure is 3 and 1 up and down/left inclined, and the warp and weft densities are 60 multiplied by 42;
(3) Dyeing;
firstly, adding the fabric prepared in the step (2) into a dye liquor at the temperature of 32 ℃, then heating to 51 ℃ at the heating rate of 2.6 ℃/min, then preserving heat for 14min, further heating to 66 ℃ at the heating rate of 1.1 ℃/min, then preserving heat for 28min, and finally heating to 86 ℃ at the heating rate of 0.5 ℃/min, and then preserving heat for 57min; wherein the dye liquor is obtained by adding cationic dye, AC-G, OP-10 and anhydrous sodium sulphate into water, and then adjusting the pH value of the system to 4.7, wherein the cationic dye is cationic red 2GL, the mass fraction of the cationic dye in the dye liquor is 3% owf, the concentration of the anhydrous sodium sulphate is 0.6G/L, the concentration of the AC-G is 3G/L, and the concentration of the OP-10 is 0.1/L; the bath ratio during dyeing is 1:12;
(4) Reduction cleaning;
after dyeing, carrying out reduction cleaning on the fabric obtained in the step (3), so as to obtain the thick autumn and winter warm-keeping elastic fabric containing Portel fibers; the cleaning solution is obtained by adding sodium hydrosulfite, KFS and sodium hydroxide into water and then adjusting the pH value of the system to 8, wherein the concentration of the sodium hydrosulfite in the cleaning solution is 2g/L, the concentration of the KFS is 1g/L, and the concentration of the sodium hydroxide is 0.3g/L; the temperature of the reduction cleaning is 72 ℃, the time is 14min, and the bath ratio is 1:17.
The prepared thick autumn and winter thermal insulation elastic fabric containing Portel fibers has the water absorption rate of 40%/s, the unidirectional transmission index of 180, the vertical wicking height of 75mm, the thermal insulation rate of 30% and the heat transfer coefficient of 16w/m 2 At a temperature of 0.4Clo, a thermal resistance of 0.062m 2 The dye-uptake is 92 percent at the temperature/w, the rubbing fastness is 3-4 grade, and the soaping fastness is 4 grade.
Comparative example 5
A preparation method of a thick autumn and winter warm elastic fabric containing Portel fibers is basically the same as that of example 2, except that the step (3) is not gradient temperature rising dyeing, but directly dyeing for 20min at 100 ℃.
The prepared thick autumn and winter thermal insulation elastic fabric containing Portel fibers has the water absorption rate of 30%/s, the unidirectional transmission index of 100, the vertical wicking height of 65mm, the thermal insulation rate of 25%, and the heat transfer coefficient of 14w/m 2 At a temperature of 0.35Clo, a thermal resistance of 0.07m 2 The dye-uptake is 76 percent at the temperature/w, the rubbing fastness is 3-4 grade, and the soaping fastness is 3-4 grade.
Compared with example 2, the rubbing fastness and the soaping fastness of comparative example 5 are similar to those of example 2, the dyeing fastness is similar, the dyeing effect of comparative example 5 is similar to that of example 2, but the vertical wicking height, the water absorption rate and the heat preservation rate of comparative example 5 are far smaller than those of example 2, because the dyeing temperature of comparative example 5 is higher, the time is longer, the hollow structure of the Portel fiber is damaged, the flooding color is more after dyeing, the hollow structure of the Portel fiber is damaged in the repeated reduction cleaning process, and the hollow structure of the Portel fiber is damaged due to excessive tension and impact force in the dyeing process, so that the performance of the fabric is reduced.
Example 3
A preparation method of a thick autumn and winter thermal elastic fabric containing Portel fibers comprises the following specific steps:
(1) Preparing raw materials;
the warp yarn is elastic core-spun yarn containing Portel fibers, and the thickness of the warp yarn is 10S/1; the preparation process of the elastic core-spun yarn containing the Portel fiber comprises the following steps: feeding a spandex filament with the thickness of 40D into a front roller on a ring spindle yarn machine, feeding a Portel fiber with the thickness of 330dtex into a rear roller, merging the spandex filament with the Portel fiber, and twisting in a twisting triangular region to obtain an elastic core-spun yarn containing the Portel fiber with the twist coefficient of 310, wherein the drafting multiple of the spandex filament is 3.7, the rear region drafting multiple is 1.2, and the pre-drafting multiple is 4; the mass ratio of the Portel fiber to the spandex filament is 92:8;
the weft yarn is yarn composed of cotton fiber with the thickness of 362 dtex; the thickness of the weft yarn is 10S/1;
(2) Weaving the warp yarns and the weft yarns into a fabric;
the total tightness of the fabric is 60%, the organization structure is 3 and 1 is inclined at the top and bottom/left, and the warp and weft densities are 64 multiplied by 50;
(3) Dyeing;
firstly, adding the fabric prepared in the step (2) into dye liquor at the temperature of 34 ℃, then heating to 52 ℃ at the heating rate of 2.7 ℃/min, then preserving heat for 13min, further heating to 67 ℃ at the heating rate of 1.2 ℃/min, then preserving heat for 26min, and finally heating to 87 ℃ at the heating rate of 0.5 ℃/min, and then preserving heat for 54min; wherein the dye liquor is obtained by adding cationic dye, AC-G, OP-10 and anhydrous sodium sulphate into water, and then adjusting the pH value of the system to 4.9, wherein the cationic dye is cationic dye brilliant blue RL, the mass fraction of the cationic dye in the dye liquor is 4% owf, the concentration of the anhydrous sodium sulphate is 0.7G/L, the concentration of the AC-G is 3G/L, and the concentration of the OP-10 is 0.1/L; the bath ratio during dyeing is 1:14;
(4) Reduction cleaning;
after dyeing, carrying out reduction cleaning on the fabric obtained in the step (3), so as to obtain the thick autumn and winter warm-keeping elastic fabric containing Portel fibers; the cleaning solution is obtained by adding sodium hydrosulfite, KFS and sodium hydroxide into water and then adjusting the pH value of the system to 8, wherein the concentration of the sodium hydrosulfite in the cleaning solution is 2g/L, the concentration of the KFS is 1g/L, and the concentration of the sodium hydroxide is 0.4g/L; the temperature of the reduction cleaning is 74 ℃, the time is 13min, and the bath ratio is 1:19.
The prepared thick autumn and winter thermal insulation elastic fabric containing Portel fibers has the water absorption rate of 45%/s, the unidirectional transmission index of 200, the vertical wicking height of 80mm, the thermal insulation rate of 34% and the heat transfer coefficient of 22w/m 2 ℃，The Crohn's value is 0.45Clo and the thermal resistance is 0.045m 2 The dyeing rate is 86 percent at the temperature of/w, the rubbing fastness is 3-4 grade, and the soaping fastness is 3-4 grade.
Example 4
A preparation method of a thick autumn and winter thermal elastic fabric containing Portel fibers comprises the following specific steps:
(1) Preparing raw materials;
the warp yarn is elastic core-spun yarn containing Portel fibers, and the thickness of the warp yarn is 15S/1; the preparation process of the elastic core-spun yarn containing the Portel fiber comprises the following steps: feeding a spandex filament with the thickness of 40D into a front roller on a ring spindle yarn machine, feeding a Portel fiber with the thickness of 335dtex into a rear roller, merging the spandex filament with the Portel fiber, and twisting in a twisting triangular region to obtain an elastic core-spun yarn containing the Portel fiber with the twist coefficient of 315, wherein the drafting multiple of the spandex filament is 3.8, the rear region drafting multiple is 1.2, and the pre-drafting multiple is 5; the mass ratio of the Portel fiber to the spandex filament is 92:8;
the weft yarn is yarn composed of cotton fiber with thickness of 363 dtex; the thickness of the weft yarn is 15S/1;
(2) Weaving the warp yarns and the weft yarns into a fabric;
the total tightness of the fabric is 65%, the organization structure is 2, 1 up and down/left inclined, and the warp and weft densities are 60 multiplied by 42;
(3) Dyeing;
firstly, adding the fabric prepared in the step (2) into dye liquor at a temperature of 36 ℃, then heating to 53 ℃ at a heating rate of 2.8 ℃/min, then preserving heat for 12min, further heating to 69 ℃ at a heating rate of 1.3 ℃/min, then preserving heat for 24min, and finally heating to 88 ℃ at a heating rate of 0.5 ℃/min, and then preserving heat for 51min; wherein the dye liquor is obtained by adding cationic dye, AC-G, OP-10 and anhydrous sodium sulphate into water and then regulating the pH value of the system to 5.1, the cationic dye is cationic blue X-GRRL, the mass fraction of the cationic dye in the dye liquor is 2% owf, the concentration of the anhydrous sodium sulphate is 0.8G/L, the concentration of the AC-G is 4G/L, and the concentration of OP-10 is 0.2/L; the bath ratio during dyeing is 1:15;
(4) Reduction cleaning;
after dyeing, carrying out reduction cleaning on the fabric obtained in the step (3), so as to obtain the thick autumn and winter warm-keeping elastic fabric containing Portel fibers; the cleaning solution is obtained by adding sodium hydrosulfite, KFS and sodium hydroxide into water and then adjusting the pH value of the system to 9, wherein the concentration of the sodium hydrosulfite in the cleaning solution is 3g/L, the concentration of the KFS is 2g/L, and the concentration of the sodium hydroxide is 0.4g/L; the reduction cleaning temperature was 76℃for 12min, and the bath ratio was 1:21.
The prepared thick autumn and winter thermal insulation elastic fabric containing Portel fibers has the water absorption rate of 35%/s, the unidirectional transmission index of 150, the vertical wicking height of 72mm, the thermal insulation rate of 28%, and the heat transfer coefficient of 15w/m 2 At a temperature of 0.32Clo, a thermal resistance of 0.067m 2 The dye-uptake is 95 percent at the temperature/w, the rubbing fastness is 3-4 grade, and the soaping fastness is 4 grade.
Example 5
A preparation method of a thick autumn and winter thermal elastic fabric containing Portel fibers comprises the following specific steps:
(1) Preparing raw materials;
the warp yarn is elastic core-spun yarn containing Portel fibers, and the thickness of the warp yarn is 15S/1; the preparation process of the elastic core-spun yarn containing the Portel fiber comprises the following steps: feeding a spandex filament with the thickness of 40D into a front roller on a ring spindle yarn machine, feeding a Portel fiber with the thickness of 340dtex into a rear roller, merging the spandex filament with the Portel fiber, and twisting in a twisting triangular region to obtain an elastic core-spun yarn containing the Portel fiber with the twist coefficient of 320, wherein the drafting multiple of the spandex filament is 3.9, the rear region drafting multiple is 1.2, and the pre-drafting multiple is 5; the mass ratio of the Portel fiber to the spandex filament is 92:8;
the weft yarn is yarn composed of cotton fiber with the thickness of 364 dtex; the thickness of the weft yarn is 15S/1;
(2) Weaving the warp yarns and the weft yarns into a fabric;
the total tightness of the fabric is 65%, the organization structure is 2, 1 up and down/left inclined, and the warp and weft densities are 60 multiplied by 42;
(3) Dyeing;
firstly, adding the fabric prepared in the step (2) into dye liquor at the temperature of 38 ℃, then heating to 54 ℃ at the heating rate of 2.9 ℃/min, then preserving heat for 11min, further heating to 72 ℃ at the heating rate of 1.4 ℃/min, then preserving heat for 22min, and finally heating to 89 ℃ at the heating rate of 0.5 ℃/min, and then preserving heat for 48min; wherein the dye liquor is obtained by adding cationic dye, AC-G, OP-10 and anhydrous sodium sulphate into water, and then adjusting the pH value of the system to 5.3, the cationic dye is cationic red 2GL, the mass fraction of the cationic dye in the dye liquor is 3% owf, the concentration of the anhydrous sodium sulphate is 0.9G/L, the concentration of the AC-G is 4G/L, and the concentration of the OP-10 is 0.2/L; the bath ratio during dyeing is 1:17;
(4) Reduction cleaning;
after dyeing, carrying out reduction cleaning on the fabric obtained in the step (3), so as to obtain the thick autumn and winter warm-keeping elastic fabric containing Portel fibers; the cleaning solution is obtained by adding sodium hydrosulfite, KFS and sodium hydroxide into water and then adjusting the pH value of the system to 9, wherein the concentration of the sodium hydrosulfite in the cleaning solution is 3g/L, the concentration of the KFS is 2g/L, and the concentration of the sodium hydroxide is 0.5g/L; the reduction cleaning temperature was 78℃for 11min, and the bath ratio was 1:25.
The prepared thick autumn and winter thermal insulation elastic fabric containing Portel fibers has the water absorption rate of 35%/s, the unidirectional transmission index of 180, the vertical wicking height of 73mm, the thermal insulation rate of 30% and the heat transfer coefficient of 16w/m 2 At a temperature of 0.4Clo, a thermal resistance of 0.062m 2 The dyeing rate is 90 percent at the temperature of/w, the rubbing fastness is 3-4 grade, and the soaping fastness is 4 grade.
Example 6
A preparation method of a thick autumn and winter thermal elastic fabric containing Portel fibers comprises the following specific steps:
(1) Preparing raw materials;
the warp yarn is elastic core-spun yarn containing Portel fibers, and the thickness of the warp yarn is 15S/1; the preparation process of the elastic core-spun yarn containing the Portel fiber comprises the following steps: feeding a spandex filament with the thickness of 40D into a front roller on a ring spindle yarn machine, feeding a Portel fiber with the thickness of 350dtex into a rear roller, merging the spandex filament with the Portel fiber, and twisting in a twisting triangle area to obtain an elastic core-spun yarn with the twist coefficient of 330 and containing the Portel fiber, wherein the drafting multiple of the spandex filament is 4, the rear area drafting multiple is 1.2, and the pre-drafting multiple is 5; the mass ratio of the Portel fiber to the spandex filament is 92:8;
the weft yarn is yarn composed of cotton fibers with the thickness of 365 dtex; the thickness of the weft yarn is 15S/1;
(2) Weaving the warp yarns and the weft yarns into a fabric;
the total tightness of the fabric is 70%, the organization structure is 2, 1 up and down/left inclined, and the warp and weft densities are 64 multiplied by 50;
(3) Dyeing;
firstly, adding the fabric prepared in the step (2) into a dye liquor at the temperature of 40 ℃, then heating to 55 ℃ at the heating rate of 3 ℃/min, then preserving heat for 10min, further heating to 75 ℃ at the heating rate of 1.5 ℃/min, then preserving heat for 20min, and finally heating to 90 ℃ at the heating rate of 0.5 ℃/min, and then preserving heat for 45min; wherein the dye liquor is obtained by adding cationic dye, AC-G, OP-10 and anhydrous sodium sulphate into water and then regulating the pH value of the system to 5.5, the cationic dye is cationic dye brilliant blue RL, the mass fraction of the cationic dye in the dye liquor is 4% owf, the concentration of the anhydrous sodium sulphate is 1G/L, the concentration of the AC-G is 4G/L, and the concentration of the OP-10 is 0.2/L; the bath ratio during dyeing is 1:20;
(4) Reduction cleaning;
after dyeing, carrying out reduction cleaning on the fabric obtained in the step (3), so as to obtain the thick autumn and winter warm-keeping elastic fabric containing Portel fibers; the cleaning solution is obtained by adding sodium hydrosulfite, KFS and sodium hydroxide into water and then adjusting the pH value of the system to 9, wherein the concentration of the sodium hydrosulfite in the cleaning solution is 3g/L, the concentration of the KFS is 2g/L, and the concentration of the sodium hydroxide is 0.5g/L; the temperature of the reduction cleaning is 80 ℃, the time is 10min, and the bath ratio is 1:30.
The prepared thick autumn and winter thermal insulation elastic fabric containing Portel fibers has the water absorption rate of 35%/s, the unidirectional transmission index of 160, the vertical wicking height of 72mm, the thermal insulation rate of 34%, and the heat transfer coefficient of 15w/m 2 At a temperature of 0.45Clo, a thermal resistance of 0.067m 2 The dye-uptake is 87% at the temperature/w, the rubbing fastness is 3-4 grade, and the soaping fastness is 4 grade.
Claims (4)
1. A preparation method of a thick autumn and winter thermal elastic fabric containing Portel fibers is characterized in that elastic core spun yarns containing Portel fibers are used as warp yarns, yarns consisting of cotton fibers are used as weft yarns, the warp yarns and the weft yarns are woven into the fabric, and then cationic dye is used for dyeing the fabric, so that the thick autumn and winter thermal elastic fabric containing Portel fibers is obtained;
the cationic dye is a cationic dye capable of dyeing Portel fibers and simultaneously not capable of dyeing cotton fibers;
the dyeing process is as follows: firstly, adding fabric into a dye liquor at the temperature of 30-40 ℃, then heating to 50-55 ℃ at the heating rate of 2.5-3 ℃/min, then preserving heat for 10-15 min, further heating to 65-75 ℃ at the heating rate of 1-1.5 ℃/min, preserving heat for 20-30 min, and finally, heating to 85-90 ℃ at the heating rate of 0.5 ℃/min, and preserving heat for 45-60 min;
the dye liquor is obtained by adding cationic dye, AC-G, OP-10 and anhydrous sodium sulphate into water, and then adjusting the pH value of a system to be 4.5-5.5, wherein the mass fraction of the cationic dye in the dye liquor is 2-4% owf, the concentration of the anhydrous sodium sulphate is 0.5-1G/L, the concentration of the AC-G is 3-4G/L, and the concentration of the OP-10 is 0.1-0.2G/L;
the bath ratio during dyeing is 1:10-20;
reducing and cleaning after dyeing is finished; the cleaning solution is prepared by adding sodium hydrosulfite, KFS and sodium hydroxide into water and then adjusting the pH value of the system to 8-9, wherein the concentration of the sodium hydrosulfite in the cleaning solution is 2-3 g/L, the concentration of the KFS is 1-2 g/L, and the concentration of the sodium hydroxide is 0.3-0.5 g/L; the reduction cleaning temperature is 70-80 ℃, the time is 10-15 min, and the bath ratio is 1:15-30;
the dye-uptake rate of the thick autumn and winter thermal elastic fabric containing Portel fibers is 80-95%, the rubbing fastness is more than 3 levels, the soaping fastness is more than 3 levels, the water absorption rate is 35-45%/s, the unidirectional transmission index is 150-200, the vertical wicking height is 70-80 mm, the thermal insulation rate is 28-34%, and the heat transfer coefficient is 15-22 w/m 2 ·At a temperature of 0.32-0.45 Clo, a thermal resistance of 0.045-0.067 m 2 ·℃/w。
2. The method for preparing the thick autumn and winter thermal elastic fabric containing the Portel fibers according to claim 1, wherein the preparation process of the elastic core spun yarn containing the Portel fibers is as follows: feeding the polyurethane filaments with the thickness of 40D into a front roller and simultaneously feeding the Portel fibers into a rear roller on a ring spindle yarn machine, merging the polyurethane filaments and the Portel fibers, and twisting in a twisting triangular area to obtain the elastic core spun yarn containing the Portel fibers with the twist coefficient of 300-330.
3. The method for preparing the thick autumn and winter thermal elastic fabric containing the Portel fibers, which is characterized in that the thickness of warp yarns is 10-15S/1, and the mass ratio of the Portel fibers to spandex filaments in the warp yarns is 92:8; the thickness of the weft yarn is 10-15S/1.
4. The method for preparing the thick autumn and winter thermal elastic fabric containing Portel fibers according to claim 3, wherein the total tightness of the fabric is 60-70%, the tissue structure is 3 up-down/left inclined or 2 up-down/left inclined, and the spandex content of the fabric is 4-7wt%.
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