CN114481595A - Modified polyester fiber and preparation method and application thereof - Google Patents

Modified polyester fiber and preparation method and application thereof Download PDF

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Publication number
CN114481595A
CN114481595A CN202210239382.8A CN202210239382A CN114481595A CN 114481595 A CN114481595 A CN 114481595A CN 202210239382 A CN202210239382 A CN 202210239382A CN 114481595 A CN114481595 A CN 114481595A
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China
Prior art keywords
spandex
dyeing
polyester fiber
fiber
modification
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CN202210239382.8A
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Chinese (zh)
Inventor
宫怀瑞
徐良平
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Luolai Lifestyle Technology Co Ltd
Shanghai Luolai Lifestyle Technology Co Ltd
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Luolai Lifestyle Technology Co Ltd
Shanghai Luolai Lifestyle Technology Co Ltd
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Priority to CN202210239382.8A priority Critical patent/CN114481595A/en
Publication of CN114481595A publication Critical patent/CN114481595A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/13—Alginic acid or derivatives thereof
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/15—Proteins or derivatives thereof
    • 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
    • D06P1/16—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 dispersed, e.g. acetate, dyestuffs
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    • 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
    • D06P1/38—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 reactive dyes
    • D—TEXTILES; PAPER
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    • 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
    • D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
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    • 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
    • D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—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 insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/651—Compounds without nitrogen
    • D06P1/65106—Oxygen-containing compounds
    • D06P1/65125—Compounds containing ester groups
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    • 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
    • D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673—Inorganic compounds
    • D06P1/67333—Salts or hydroxides
    • D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
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    • 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
    • D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673—Inorganic compounds
    • D06P1/67333—Salts or hydroxides
    • D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
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    • 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
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    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/02—After-treatment
    • D06P5/04—After-treatment with organic compounds
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    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
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    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Coloring (AREA)

Abstract

The invention relates to the technical field of blended fabric production, and discloses a modified polyester fiber, a preparation method and application thereof, wherein the preparation method of the modified polyester fiber comprises a modification step, in the modification step, the polyester fiber is immersed in a modification liquid, and the modification liquid comprises the following components in percentage by mass: 1.5-3.0% of sericin powder, 0.6-1.5% of a cross-linking agent and the balance of water to obtain the modified polyester fiber. According to the invention, the modified polyester fiber is applied to the manufacture of the blended fabric, so that the obtained blended fabric can be dyed at low temperature in the dyeing process, the influence of high temperature on other fibers in the blended fabric is avoided, and the high elasticity and strength of the blended fabric are further ensured. In addition, the invention also improves the color fastness of the blended fabric.

Description

Modified polyester fiber and preparation method and application thereof
Technical Field
The invention relates to the technical field of blended fabric production, in particular to a modified polyester fiber and a preparation method and application thereof.
Background
The terylene/spandex/cellulose fiber blended fabric has the advantages of soft touch, high elasticity, good drapability, good moisture absorption and air permeability and the like, and the clothes are comfortable to wear and have good crease resistance and crease-free performance, so that the terylene/spandex/cellulose fiber blended fabric is well welcomed by people. However, because terylene has stronger hydrophobicity and more outstanding heat resistance, a high-temperature high-pressure dyeing method or a thermosol dyeing method is generally adopted during dyeing, namely the temperature during dyeing of terylene is generally above 120 ℃. However, the heat resistance of spandex is poor, amide bond hydrolysis is easy to occur in the environment of more than 120 ℃, and as the swelling degree of spandex fibers is increased, the hydrogen bond part of interaction in the macromolecules of the spandex fibers disappears, especially when the fibers are subjected to large drawing force, the rearrangement of an amorphous structure of the spandex fibers in the recovery process can be accelerated, the tensile strength and the tensile elongation of the spandex fibers are reduced, and the spandex aging phenomenon is generated, so that the elasticity and strength of the fabric are greatly lost in the dyeing process, and the application range of the fabric is limited.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention aims to provide a modified polyester fiber, a preparation method and an application thereof, which are used for solving the problem that the blended fabric containing polyester and spandex loses large strength and elasticity in the dyeing process in the prior art.
In order to achieve the above and other related objects, the present invention provides a method for preparing modified polyester fibers, comprising a modification step of immersing polyester fibers in a modification solution, wherein the modification solution comprises the following components by mass: 1.5-3.0% of sericin powder, 0.6-1.5% of a cross-linking agent and the balance of water.
Optionally, in the modification step, the modification solution comprises the following components in percentage by mass: 1.5-3.0% of sericin powder, 1.0-1.5% of sodium alginate, 0.6-1.5% of a cross-linking agent and the balance of water.
Optionally, in the modification step, the temperature of the modification solution is 50-65 ℃, and the soaking time is 60-75 min.
Optionally, the method further comprises a pretreatment step, wherein in the pretreatment step, the polyester fiber is soaked in a pretreatment liquid, and the pretreatment liquid contains 3.5-4.5 g/L NaOH and 2.5-3.5 g/L surfactant.
Optionally, in the pretreatment step, the temperature of the pretreatment solution is 75-80 ℃, and the soaking time is 30-45 min.
The invention also provides the modified polyester fiber prepared by the preparation method.
The invention also provides a terylene/spandex/cellulose fiber blended yarn which comprises the following components in percentage by mass: 5-10% of spandex, 20-30% of cellulose fiber and the balance of modified polyester fiber, wherein the modified polyester fiber is prepared according to the preparation method of the modified polyester fiber.
Optionally, the cellulose fiber is modified kapok fiber, the preparation method of the modified kapok fiber comprises a cationization modification step, in the cationization modification step, the kapok fiber is soaked in a cationization modification liquid, the cationization modification liquid contains 1.0-15.0% of owf cationic modifier SA and 2.0-2.5 g/L of penetrating agent, and the pH value of the cationization modification liquid is 10-12.
Optionally, in the cationization modification step, the temperature of the cationization modification solution is 70-75 ℃, and the soaking time is 40-45 min.
The invention also provides a production process of the terylene/spandex/cellulose fiber blended yarn, which comprises the following steps:
s1, preparing raw cloth: weaving the terylene/spandex/cellulose fiber blended yarn into original cloth;
s2, primary dyeing: immersing the raw cloth in the step S1 into a dyeing solution A at the temperature of 40-45 ℃, and heating to 100-105 ℃, wherein the dyeing solution A contains 2.0-5.0% owf disperse dye, 1.0-2.0 g/L dispersing agent, 0.3-0.6 g/L dyeing auxiliary agent and 4.0-6.0 g/L penetrating agent, and the pH value of the dyeing solution A is 5-6;
s3, secondary dyeing: and (4) immersing the original cloth dyed for the first time in the step (S3) into a dyeing solution B at the temperature of 40-60 ℃, wherein the dyeing solution B contains 1.0-3.0% of owf reactive dye, 2.0-4.0 g/L of penetrating agent and 20.0-25.0 g/L of NaCl.
Optionally, after the step S2 and before the step S3, the raw cloth is cleaned by using a reducing cleaning solution prepared from caustic soda and sodium hydrosulfite, wherein the concentration of the caustic soda in the reducing cleaning solution is 1.0-1.5 g/L, and the concentration of the sodium hydrosulfite is 1.0-1.5 g/L, and then the raw cloth is cleaned by water.
Optionally, the temperature of the reduction cleaning solution is 75-80 ℃, and the cleaning time is 15-20 min.
Optionally, after step S3, the method further includes the following steps:
s4, soaping: and (4) soaping the raw cloth subjected to secondary dyeing in the step (S3), wherein the soaping liquid contains 0.5-1.0 wt% of soaping agent and 5.0-8.0 g/L of color fixing agent.
Optionally, in step S4, the temperature of the soap washing liquid is 75 to 80 ℃, and the length of the soap washing is 20 to 25 min.
Optionally, in step S3, after the heat preservation is performed for 30-35 min, sodium carbonate is added to the dyeing solution B, so that the dyeing solution B contains 9.0-11.0 g/L of sodium carbonate.
Optionally, in step S2, the temperature is raised to 100-105 ℃ at a temperature raising rate of 1-2 ℃/min, and the temperature is maintained for 40-45 min.
Optionally, in step S3, the primary dyed cloth in step S2 is immersed in the dyeing solution B at 40-60 ℃ for heat preservation for 40-45 min.
The invention also provides a blended fabric woven by the terylene/spandex/cellulose fiber blended yarn and/or a blended fabric produced by the production process of the terylene/spandex/cellulose fiber blended fabric and/or a fabric woven by the modified terylene fiber.
As mentioned above, the modified polyester fiber and the preparation method and the application thereof have the following beneficial effects:
1. according to the invention, sericin is utilized to modify the polyester fiber, more active groups such as hydroxyl, amino, carboxyl and the like are introduced into the polyester fiber, so that disperse dye can dye the polyester fiber at 100-105 ℃, and the spandex has good dye uptake at 100-105 ℃, and the elasticity and the strength of the spandex are not greatly damaged, thereby ensuring the elasticity and the strength of the blended fabric.
2. In the invention, the dyeing auxiliary agent, the penetrating agent and the dispersing agent are used in the dyeing liquid A, so that the disperse dye can more uniformly dye the polyester fiber and the spandex.
3. According to the invention, the original cloth after primary dyeing is subjected to reduction cleaning by using the reduction cleaning solution prepared from caustic soda and sodium hydrosulfite, so that loose color on the original cloth is washed away, and the color fastness of the blended fabric is improved. Moreover, in the process of modifying the polyester fiber by utilizing the sericin, the sodium alginate is added, so that the fixation of the sericin on the polyester fiber is improved, and the color fastness of the blended fabric is further improved.
4. According to the invention, the cellulose fiber is selected as the modified kapok fiber, and the kapok fiber subjected to cationic modification not only maintains the characteristic of high hollow rate, but also improves the dyeing property of the kapok fiber, so that the dyeing property of the blended fabric is ensured, and meanwhile, the heat retention property of the blended fabric can be improved, and further the blended fabric can be applied to cutting of warm-keeping clothes and/or warm-keeping bedding.
5. The terylene/spandex/cellulose fiber blended fabric has the advantages of high elasticity, good strength, good hygroscopicity and good wrinkle resistance, and is soft and comfortable to use.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The invention provides a modified polyester fiber, which comprises a pretreatment step and a modification step, wherein in the pretreatment step, polyester is soaked in pretreatment liquid, the pretreatment liquid contains 3.5-4.5 g/L NaOH and 2.5-3.5 g/L surfactant, the temperature of the pretreatment liquid is 75-80 ℃, and the soaking time is 30-45 min; in the modification step, the polyester fiber is immersed in a modification liquid, and the modification liquid comprises the following components in percentage by mass: 1.5-3.0% of sericin powder, 0.6-1.5% of a cross-linking agent and the balance of water, wherein the temperature of the modifying liquid is 50-65 ℃, and the soaking time is 60-75 min.
In another embodiment of the present invention, in the modification step, the modification liquid comprises the following components by mass percent: 1.5-3.0% of sericin powder, 1.0-1.5% of sodium alginate, 0.6-1.5% of a cross-linking agent and the balance of water.
The invention provides a terylene/spandex/cellulose fiber blended yarn which comprises the following components in percentage by mass: 5-10% of spandex, 20-30% of cellulose fiber and the balance of the modified polyester fiber.
In another embodiment of the invention, the cellulose fiber is modified kapok fiber, and the preparation method of the modified kapok fiber comprises a cationization modification step, wherein in the cationization modification step, the kapok fiber is soaked in a cationization modification solution, the cationization modification solution contains 1.0-15.0% of owf cationic modifier SA and 2.0-2.5 g/L of penetrating agent, the pH value of the cationization modification solution is 10-12, the temperature of the cationization modification solution is 70-75 ℃, and the soaking time is 40-45 min.
And before the cationization modification step, the kapok fiber is also subjected to pretreatment in the following mode: soaking kapok fibers in an alkali treatment solution, wherein the alkali treatment solution contains 9.0-11.0 g/L NaOH, 1.0-1.5 g/L penetrant JFC, 1.0-1.5 g/L peregal O and 2.0-2.5 g/L sodium silicate, the temperature of the alkali treatment solution is 95-100 ℃, and the treatment time is 20-25 min; then, taking the kapok fiber out of the alkali treatment solution, washing with water and drying; soaking the carbon black in bleaching liquid, wherein the bleaching liquid contains 20.0-25.0 g/L of 30% hydrogen peroxide and 1.0-1.5 g/L of sodium silicate as an oxygen bleaching stabilizer, the pH value of the bleaching liquid is 10.5-11.0, the temperature of the bleaching liquid is 90-95 ℃, and the bleaching time is 60-65 min; and finally, taking the kapok fiber out of the bleaching solution, washing with water, and drying.
The invention also provides a production process of the terylene/spandex/cellulose fiber blended fabric, which comprises the following steps:
s1, preparing raw cloth: and weaving the terylene/spandex/cellulose fiber blended yarn into original cloth.
S2, primary dyeing: and (4) immersing the raw cloth in the step (S1) into a dyeing solution A at the temperature of 40-45 ℃, heating to 100-105 ℃ at the heating rate of 1-2 ℃/min, and preserving heat for 40-45 min, wherein the dyeing solution A contains 2.0-5.0% of owf disperse dye, 1.0-2.0 g/L dispersing agent, 0.3-0.6 g/L dyeing auxiliary agent and 4.0-6.0 g/L penetrating agent, and the pH value of the dyeing solution A is 5-6. Wherein the dyeing auxiliary agent is one or more than two of dioctyl terephthalate, ethyl benzoate, phenyl salicylate, diethylene glycol dibenzoate and dimethyl terephthalate.
S3, reduction and cleaning: the original cloth is cleaned by using a reducing cleaning solution prepared from caustic soda and sodium hydrosulfite, the concentration of the caustic soda in the reducing cleaning solution is 1.0-1.5 g/L, the concentration of the sodium hydrosulfite is 1.0-1.5 g/L, the temperature of the reducing cleaning solution is 75-80 ℃, the cleaning time is 15-20 min, and then the cloth is cleaned by water.
S4, secondary dyeing: and (4) immersing the original cloth subjected to reduction cleaning in the step (S3) into a dyeing solution B at the temperature of 40-60 ℃, and preserving the heat for 55-65 min, wherein the dyeing solution B contains 1.0-3.0% of owf reactive dye, 2.0-4.0 g/L of penetrating agent and 20.0-25.0 g/L of NaCl. And (3) after preserving the heat for 30-35 min, adding sodium carbonate into the dyeing liquid B so that the dyeing liquid B contains 9.0-11.0 g/L of sodium carbonate.
S5, soaping: and (4) soaping the raw cloth subjected to secondary dyeing in the step (S4), wherein the temperature of soaping liquid is 75-80 ℃, the soaping time is 20-25 min, and the soaping liquid contains 0.5-1.0 wt% of soaping agent and 5.0-8.0 g/L of color fixing agent.
S6, drying: drying at 100 deg.C or below.
The invention also provides a blended fabric produced by the production process of the terylene/spandex/cellulose fiber blended fabric, and/or a blended fabric woven by the terylene/spandex/cellulose fiber blended yarn, and/or a fabric woven by the modified terylene fiber.
The present invention will be described in detail below with reference to specific exemplary embodiments. It should also be understood that the following examples are illustrative only and are not to be construed as limiting the scope of the invention, and that numerous insubstantial modifications and adaptations of the invention described above will occur to those skilled in the art. The specific process parameters and the like of the following examples are also only one example of suitable ranges, i.e., those skilled in the art can select the appropriate ranges through the description herein, and are not limited to the specific values exemplified below.
Example 1
A preparation method of the modified polyester fiber comprises a pretreatment step and a modification step.
In the pretreatment step, the polyester fiber is soaked in pretreatment liquid, the pretreatment liquid contains 4.0g/L NaOH and 3.0g/L surfactant, the temperature of the pretreatment liquid is 80 ℃, and the soaking time is 35 min. In this example, the surfactant is a 1227 surfactant.
In the modification step, the polyester fiber is immersed in a modification liquid, and the modification liquid comprises the following components in percentage by mass: 3.0 percent of sericin powder, 1.5 percent of cross-linking agent and the balance of water. The temperature of the modifying solution is 50 ℃, and the soaking time is 60 min. In this example, the cross-linking agent is glutaraldehyde.
The terylene/spandex/cellulose fiber blended yarn comprises the following components in percentage by mass: 5% of spandex, 20% of kapok fiber and 75% of the modified polyester fiber. The kapok fiber is pretreated in the following manner: soaking the kapok fiber in an alkali treatment solution, wherein the alkali treatment solution contains 10.0g/L NaOH, 1.0g/L penetrant JFC, 1.0g/L peregal O and 2.0g/L sodium silicate, the temperature of the alkali treatment solution is 100 ℃, and the treatment time is 20 min; then, taking the kapok fiber out of the alkali treatment solution, washing with water and drying; soaking the bleaching solution in bleaching solution, wherein the bleaching solution contains 20.0g/L of 30% hydrogen peroxide and 1.0g/L of sodium silicate as an oxygen bleaching stabilizer, the pH value of the bleaching solution is adjusted to 10.5-11.0 by using NaOH, the temperature of the bleaching solution is 90 ℃, and the bleaching time is 60 min; and finally, taking the kapok fiber out of the bleaching solution, washing with water, and drying for later use.
A production process of a terylene/spandex/cellulose fiber blended fabric comprises the following steps:
s1, preparing raw cloth: and weaving the terylene/spandex/cellulose fiber blended yarn into original cloth.
S2, primary dyeing: and (4) immersing the original cloth in the step S1 into the dyeing liquid A at the temperature of 45 ℃, heating to 105 ℃ at the heating rate of 1 ℃/min, and preserving the heat for 45 min. Wherein the dyeing liquid A contains 2.0% owf disperse dye, 1.5g/L dispersant, 0.5g/L dyeing assistant and 6g/L penetrant JFC, the pH value of the dyeing liquid A is 5-6, and glacial acetic acid is used for adjusting the pH value of the dyeing liquid A. In this example, the disperse dye is a monoazo-type disperse dye, the dispersant is a dispersant NNO, and the dyeing assistant is dimethyl terephthalate.
S3, reduction and cleaning: and (3) carrying out reduction cleaning on the original cloth dyed in the step S2 by using a reduction cleaning solution, wherein the reduction cleaning solution contains 1.0g/L of caustic soda and 1.0g/L of sodium hydrosulfite, the temperature of the reduction cleaning solution is 75 ℃, the cleaning time is 20min, then washing the original cloth until the original cloth is clear, and drying the original cloth at the temperature below 100 ℃.
S4, secondary dyeing: and (5) soaking the original cloth dried in the step S3 into the dyeing liquid B at the temperature of 60 ℃, and preserving the heat for 60 min. Wherein, the dyeing liquid B contains 1.0% owf reactive dye, 2g/L penetrant JFC and 20.0g/L NaCl. After 30min of incubation, sodium carbonate was added to the staining solution B so that 10g/L of sodium carbonate was contained in the staining solution B.
S5, soaping: and (4) soaping the raw cloth subjected to secondary dyeing in the step S4 by using a soaping solution, wherein the temperature of the soaping solution is 80 ℃, the soaping time is 25min, and the soaping solution contains 1.0 wt% of soaping agent and 5.0-8.0 g/L of color fixing agent. In this embodiment, the soaping agent is MSDS, and the color fixing agent is cetylpyridinium chloride.
S6, drying: and (5) washing the raw cloth in the step S5 to be water-clear, and drying at the temperature of below 100 ℃ to obtain the blended fabric.
Example 2
This embodiment differs from embodiment 1 only in that: the polyester/spandex/cellulose fiber blended yarn in step S1 of this embodiment is different from that in embodiment 1 in the modification liquid used for preparing modified polyester fiber, and in this embodiment, the modification liquid used in the modification step includes the following components by mass percent: 3.0% of sericin powder, 1.5% of sodium alginate, 1.5% of a cross-linking agent and the balance of water. The remaining steps were the same as in example 1.
Example 3
This embodiment differs from embodiment 2 only in that: in the polyester/spandex/cellulose fiber blended yarn in step S1 of this example, the kapok fiber in example 2 was replaced with a modified kapok fiber, and the preparation method of the modified kapok fiber included a cationization modification step.
In the cationization modification step, the kapok fiber subjected to pretreatment (carried out according to the pretreatment mode described in example 1) is soaked in a cationization modification solution, the cationization modification solution contains 5% of owf cationic modifier SA and 2.0g/L of penetrant JFC, the pH value of the cationization modification solution is adjusted to 10-12 by NaOH, the temperature of the cationization modification solution is 75 ℃, and the soaking time is 45 min; and finally, taking the kapok fiber out of the cationization modification solution, washing with water, and drying to obtain the modified kapok fiber. The remaining steps were the same as in example 2.
Example 4
This embodiment differs from embodiment 3 only in that: in this embodiment, the ratio of the components of the polyester/spandex/cellulose fiber blended yarn in step S1 is different from that of the polyester/spandex/cellulose fiber blended yarn in embodiment 3, and in this embodiment, 10% spandex, 30% modified kapok fiber and 60% modified polyester fiber are blended and spun into the polyester/spandex/cellulose fiber blended yarn. The remaining steps were the same as in example 3.
Example 5
This embodiment differs from embodiment 2 only in that: the polyester/spandex/cellulose fiber blended yarn in step S1 of this embodiment is different from that in embodiment 1 in the modification liquid used for preparing modified polyester fiber, and in this embodiment, the modification liquid used in the modification step includes the following components by mass percent: 2.0 percent of sericin powder, 1.2 percent of sodium alginate, 1.0 percent of cross-linking agent and the balance of water. The remaining steps were the same as in example 2.
Example 6
This embodiment differs from embodiment 3 only in that: in step S2 of the present example, the temperature of the dyeing liquid A was raised to 100 ℃ at a temperature raising rate of 2 ℃/min. The remaining steps were the same as in example 3.
Comparative example 1
This comparative example differs from example 1 only in that: in this comparative example, the modified polyester fiber of example 1 was replaced with the ordinary polyester fiber, which is the original polyester fiber used to prepare the modified polyester fiber of example 1.
Comparative example 2
This comparative example differs from example 1 only in that: in this comparative example, the modified polyester fiber of example 1 was replaced with the ordinary polyester fiber, which is the original polyester fiber used for preparing the modified polyester fiber of example 1, and the temperature of the dyeing liquid a was 130 ℃ in the step of "S3, primary dyeing".
The color depth (K/S value) of the blended fabrics in examples 1-6 and comparative examples 1-2 was tested as follows: and (4) folding the blended fabric twice (four layers), measuring the K/S value of the fabric at the lambda max by using a Datacolor SF600X computer color measuring and matching instrument, and measuring four times to obtain an average value. The larger the K/S value is, the darker the color is, and conversely, the lighter the color is, the color yield of the dye on the fabric can be represented. The results are shown in Table 1.
The washing fastness and rubbing fastness of the blended fabrics in examples 1-6 and comparative examples 1-2 are tested according to the basic safety technical specification of GB/T18401-. The results are shown in Table 1.
The elastic force loss rate is calculated according to the fixed force elastic recovery rate of the original cloth and the blended fabric in examples 1 to 6 and comparative example 2 tested by the method for testing the tensile elasticity of the FZ/T01034-2008 textile woven fabric. The elastic loss rate is (constant force elastic recovery rate of original cloth-constant force elastic recovery rate of blended fabric)/constant force elastic recovery rate of original cloth x 100%. The results are shown in Table 2.
And (3) testing the breaking strength of the original cloth and the blended fabric in examples 1-6 and comparative example 2 according to the tensile property of the textile fabric GB/T3923.1-2013, and calculating the breaking strength loss rate. The breaking strength loss ratio (breaking strength of the original fabric-breaking strength of the blended fabric)/breaking strength of the original fabric × 100%. The results are shown in Table 2.
TABLE 1 tables of K/S values and colorfastnesses for the examples and comparative examples
Figure BDA0003543715800000081
Figure BDA0003543715800000091
TABLE 2 tables for loss of elasticity and loss of breaking force of each of examples and comparative examples 2
Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Comparative example 2
Loss rate of elasticity/%) 12.8 10.2 9.8 9.9 10.6 9.7 30.2
Breaking strength loss rate/%) 6.7 6.1 5.9 5.8 6.3 6.0 8.6
As can be seen from Table 1, the dyeing depth and the color fastness of the polyester blended fabric obtained in the examples 1 to 6 are superior to those of the comparative example 1, and the polyester blended fabric obtained in the invention can be dyed at a low temperature by modifying the polyester fibers, and can be guaranteed to have good color fastness. Moreover, as can be seen from table 2, the loss ratios of the elasticity and the breaking strength of the examples 1 to 6 are both smaller than those of the comparative example 2, which shows that the loss ratios of the elasticity and the breaking strength of the blended fabric are both smaller after the low-temperature dyed blended fabric is realized, so that the dyed blended fabric with high elasticity and strength is obtained, and the application range of the blended fabric is widened.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. The preparation method of the modified polyester fiber comprises the modification step and is characterized in that: in the modification step, the polyester fiber is immersed in a modification liquid, and the modification liquid comprises the following components in percentage by mass: 1.5-3.0% of sericin powder, 0.6-1.5% of a cross-linking agent and the balance of water.
2. The preparation method of the modified polyester fiber according to claim 1, wherein the method comprises the following steps: in the modification step, the modification liquid comprises the following components in percentage by mass: 1.5-3.0% of sericin powder, 1.0-1.5% of sodium alginate, 0.6-1.5% of a cross-linking agent and the balance of water.
3. The preparation method of the modified polyester fiber according to claim 1, wherein the method comprises the following steps: the method further comprises a pretreatment step, wherein in the pretreatment step, the polyester fiber is soaked in a pretreatment liquid, and the pretreatment liquid contains 3.5-4.5 g/L NaOH and 2.5-3.5 g/L surfactant.
4. The modified polyester fiber prepared by the preparation method of any one of claims 1 to 3.
5. The terylene/spandex/cellulose fiber blended yarn is characterized in that: the coating comprises the following components in percentage by mass: 5-10% of spandex, 20-30% of cellulose fiber and the balance of modified polyester fiber, wherein the modified polyester fiber is prepared by the preparation method of any one of claims 1-3.
6. The polyester/spandex/cellulose fiber blended yarn of claim 5, wherein: the cellulose fiber is modified kapok fiber, the preparation method of the modified kapok fiber comprises a cationization modification step, in the cationization modification step, the kapok fiber is soaked in cationization modification liquid, the cationization modification liquid contains 1.0-15.0% of owf cationic modifier SA and 2.0-2.5 g/L of penetrating agent, and the pH value of the cationization modification liquid is 10-12.
7. A production process of a terylene/spandex/cellulose fiber blended fabric is characterized by comprising the following steps: the method comprises the following steps:
s1, preparing raw cloth: weaving the terylene/spandex/cellulose fiber blended yarn of claim 5 or 6 into raw cloth;
s2, primary dyeing: immersing the original cloth in the step S1 into a dyeing solution A at the temperature of 40-45 ℃, and heating to 100-105 ℃, wherein the dyeing solution A contains 2.0-5.0% owf disperse dye, 1.0-2.0 g/L dispersing agent, 0.3-0.6 g/L dyeing auxiliary agent and 4.0-6.0 g/L penetrating agent, and the pH value of the dyeing solution A is 5-6;
s3, secondary dyeing: and (4) immersing the original cloth dyed for the first time in the step (S3) into a dyeing solution B at the temperature of 40-60 ℃, wherein the dyeing solution B contains 1.0-3.0% of owf reactive dye, 2.0-4.0 g/L of penetrating agent and 20.0-25.0 g/L of NaCl.
8. The production process of the terylene/spandex/cellulose fiber blended fabric according to claim 7, characterized in that: after the step S2 and before the step S3, the original cloth is cleaned by using a reducing cleaning solution prepared from caustic soda and sodium hydrosulfite, the concentration of the caustic soda in the reducing cleaning solution is 1.0-1.5 g/L, and the concentration of the sodium hydrosulfite is 1.0-1.5 g/L, and then the original cloth is cleaned by water until the original cloth is cleaned by water.
And/or, after the step S3, the method further comprises the following steps:
s4, soaping: and (4) soaping the raw cloth subjected to secondary dyeing in the step (S3), wherein the soaping liquid contains 0.5-1.0 wt% of soaping agent and 5.0-8.0 g/L of color fixing agent.
And/or adding sodium carbonate into the dyeing solution B after heat preservation for 30-35 min in the step S3, so that the dyeing solution B contains 9.0-11.0 g/L of sodium carbonate.
9. The production process of the terylene/spandex/cellulose fiber blended fabric according to claim 7, characterized in that: in step S2, heating to 100-105 ℃ at a heating rate of 1-2 ℃/min, and keeping the temperature for 40-45 min;
and/or, in the step S3, the original cloth dyed once in the step S2 is immersed in the dyeing solution B with the temperature of 40-60 ℃ for heat preservation for 40-45 min.
10. A polyester/spandex/cellulose fiber blended fabric produced by the production process of any one of claims 7 to 9 and/or a fabric woven from the polyester/spandex/cellulose fiber blended yarn of claim 5 or 6 and/or a fabric woven from the modified polyester fiber of claim 4.
CN202210239382.8A 2022-03-11 2022-03-11 Modified polyester fiber and preparation method and application thereof Pending CN114481595A (en)

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