CN113604947A - Fluorescent knitted flame-retardant fabric and application thereof - Google Patents
Fluorescent knitted flame-retardant fabric and application thereof Download PDFInfo
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- CN113604947A CN113604947A CN202110958180.4A CN202110958180A CN113604947A CN 113604947 A CN113604947 A CN 113604947A CN 202110958180 A CN202110958180 A CN 202110958180A CN 113604947 A CN113604947 A CN 113604947A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
- D04B1/12—Patterned fabrics or articles characterised by thread material
- D04B1/126—Patterned fabrics or articles characterised by thread material with colour pattern, e.g. intarsia fabrics
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
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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
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
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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
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
- D10B2321/101—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide modacrylic
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/062—Load-responsive characteristics stiff, shape retention
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/20—Physical properties optical
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
Abstract
The invention provides a fluorescent knitted flame-retardant fabric and application thereof, and relates to the technical field of fabric fabrics. The fluorescent knitted flame-retardant fabric comprises a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer is connected with the bottom layer through the intermediate connecting layer; wherein the surface layer is mainly knitted by fluorescent dyeing polyester filament; the middle connecting layer is mainly prepared by knitting middle connecting yarns obtained by blending polyester filaments and acrylic fibers; the bottom layer is mainly knitted by bottom layer flame-retardant yarns obtained by blending modacrylic, cellulose fibers and aramid fibers. The fluorescent knitted flame-retardant fabric fully exerts respective effects of the fluorescent dyed polyester filament yarns, the middle connecting yarns and the bottom flame-retardant yarns, the obtained fabric has a high fluorescent orange warning effect and an A1-level flame-retardant protection effect, and meanwhile, the knitted fabric with low gram weight is lighter, thinner, more comfortable, softer and more breathable, so that the effective combination of the protection performance and the wearing comfort is realized.
Description
Technical Field
The invention relates to the technical field of fabric fabrics, in particular to a fluorescent knitted flame-retardant fabric and application thereof.
Background
With the application and development of high-performance fiber materials, the requirement on the protection level of individual protection equipment is continuously improved, and the protection fabric with the fluorescent flame-retardant function is gradually generalized in the industries of mines, steel smelting, metal hot processing, petroleum and petrochemical industry, mechanical processing and the like, which are in contact with open flame or inflammable matters. Fluorescent dyes are widely used due to unrivaled vividness, have the colorability of common dyes, have the awakening property of emitting fluorescence, have high visual characteristics when applied to clothes, and can effectively improve the personal visibility and avoid accidents for workers in night or in a dark working environment.
Most of high-visibility fabrics on the market at present are woven by chemical fiber products such as terylene, acrylon, chinlon and the like, and comprise yellow fluorescence, orange fluorescence, red fluorescence and green fluorescence, wherein only terylene fibers are used as textile raw materials reaching the index of orange fluorescence in developed countries, and the biggest defects of terylene fibers as protective articles are that the terylene fibers are burnt at an overhigh temperature and are inflammable, have molten holes and molten drops, and cause secondary damage to the skin of people. In order to take account of the characteristics of fluorescent orange and flame retardance, the existing fluorescent orange flame-retardant fabric on the market generally adopts a weaving composite mode, the surface layer is made of polyester materials and used for achieving the fluorescent orange effect, the inner layer is made of nitrile-polyvinyl chloride or aramid fiber materials and used for achieving permanent flame retardance, but the product is thick and heavy and has poor air permeability, and particularly in hot summer, serious discomfort can be caused to a human body when the user wears thick protective clothing, so that the operation sensitivity is greatly reduced, other potential safety hazards can be generated, and the comprehensive requirements of the user on the protection performance and the wearing practicability can not be met.
Therefore, it is necessary and urgent to develop a fluorescent knitted flame-retardant fabric with low gram weight, air permeability, softness, light weight and comfort to overcome the problems of flammability, heavy weight and poor air permeability of the existing fluorescent protective clothing.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a fluorescent knitted flame-retardant fabric, which fully exerts respective effects of fluorescent dyed polyester filaments, intermediate connecting yarns and bottom flame-retardant yarns, the obtained fabric has high fluorescent orange warning effect and A1-level flame-retardant protection effect, and meanwhile, the knitted fabric with low gram weight is lighter, thinner, more comfortable, softer and more breathable, so that the effective combination of protection and wearing comfort is realized.
The second purpose of the invention is to provide a preparation method of the fluorescent knitted flame-retardant fabric.
The third purpose of the invention is to provide an application of the fluorescent knitted flame-retardant fabric, and the fluorescent knitted flame-retardant fabric can be widely applied to the preparation process of fluorescent flame-retardant protective clothing, so that the problems of flammability, thickness and poor air permeability of the existing fluorescent protective clothing are effectively overcome.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
the invention provides a fluorescent knitted flame-retardant fabric which comprises a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer and the bottom layer are connected through the intermediate connecting layer;
wherein the surface layer is mainly knitted by fluorescent dyeing polyester filament; the middle connecting layer is mainly prepared by knitting middle connecting yarns obtained by blending polyester filaments and acrylic fibers; the bottom layer is mainly knitted by bottom layer flame-retardant yarns obtained by blending modacrylic, cellulose fibers and aramid fibers.
Further, the polyester filament comprises a flame-retardant polyester filament, and the content of flame retardant phosphorus in the flame-retardant polyester filament is 7000.
Further, the fluorescent dyeing polyester filament yarn is prepared by the following steps:
adding the polyester filament yarns into a dyeing agent at a bath ratio of 1: 7-10 at 128-130 ℃, and dyeing for 10-40 min to obtain fluorescent dyed polyester filament yarns;
preferably, the fluorescent-dyed polyester filament yarn is prepared by the following steps:
adding the polyester filament yarn into a dyeing agent at a bath ratio of 1:10 at 130 ℃, and dyeing for 20min to obtain the fluorescent dyed polyester filament yarn.
Further, the staining agents include dispersed fluorescent orange 2RF, dispersed fluorescent orange GG, and dispersed fluorescent orange 2 GFL;
preferably, in the dyeing process, the dye is used in an amount of 2.5-5 owf%, and preferably 3 owf%.
Further, in the intermediate connecting yarn, the mass ratio of the polyester filament yarns to the acrylic fibers is 1:1 to 2.
Further, the bottom flame-retardant yarn is mainly obtained by blending the following fibers in percentage by mass: 30-50 wt% of modacrylic, 25-60 wt% of cellulose fiber and 10-25 wt% of aramid fiber.
According to the preparation method of the fluorescent knitted flame-retardant fabric, the fluorescent knitted flame-retardant fabric is prepared by adopting a knitted three-layer structure weaving method;
preferably, the knitting three-layer structure weaving method is a plain weave six-die weaving method.
Further, the plain weave six-mode weaving method comprises the following steps:
the upper disc and the lower disc are arranged in a contraposition way; the upper disc of the first die weaves the bottom flame-retardant yarn and the second needle floating thread in a mode of first needle looping and then needle-by-needle alternation, and the lower disc does not weave; knitting the middle connecting yarns by the upper and lower plates of the second die in a tucking mode, and tucking by separating needles; the upper disc of the third mould is not woven, the first needles of the lower disc float, the second needles are looped and then weave the fluorescent-dyed polyester filaments in a needle-by-needle alternating mode, and the lower disc is not woven; the upper disc of the fourth mould weaves the bottom flame-retardant yarn in a way of first needle floating, second needle looping and needle-by-needle alternation, and the lower disc does not weave; knitting the middle connecting yarns by the upper and lower plates of the fifth die in a tucking mode, and tucking by separating needles; and weaving the fluorescent dyed polyester filament yarn on a lower disc of a sixth die.
Further, the preparation method also comprises the steps of bleaching and post-treating the woven fluorescent knitted flame-retardant fabric in sequence;
preferably, the bleaching treatment step is to wash the fluorescent knitted flame-retardant fabric for 30-40 min by using a bleaching agent at 90-95 ℃;
preferably, the post-treatment step is to clean the fluorescent knitted flame-retardant fabric for 15-18 min by using deoxyenzyme TR-5W at 45-50 ℃.
The invention provides application of the fluorescent knitted flame-retardant fabric in preparation of fluorescent flame-retardant protective clothing.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a fluorescent knitted flame-retardant fabric which comprises a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer and the bottom layer are connected through the intermediate connecting layer; wherein the surface layer is mainly knitted by fluorescent dyeing polyester filament; the middle connecting layer is mainly prepared by knitting middle connecting yarns obtained by blending polyester filaments and acrylic fibers; the bottom layer is mainly knitted by bottom layer flame-retardant yarns obtained by blending modacrylic, cellulose fibers and aramid fibers. Above-mentioned fluorescence knitting flame retardant fabric full play fluorescence dyeing polyester filament, the respective effect of intermediate junction yarn and bottom flame retardant yarn, the surface fabric that obtains has high fluorescence orange warning effect and the fire-retardant protective effect of A1 level, low gram weight's knitting surface fabric is more frivolous comfortable, soft ventilative simultaneously, has realized the effective combination of protectiveness and snugness of fit, increased the use degree, have more extensive application, have low gram weight, ventilative, soft, frivolous comfortable advantage.
According to the preparation method of the fluorescent knitted flame-retardant fabric, the fluorescent knitted flame-retardant fabric is prepared by adopting a knitting three-layer structure knitting method, and the preparation method has the advantages of simple processing technology and easiness in operation.
According to the application of the fluorescent knitted flame-retardant fabric provided by the invention, the fluorescent knitted flame-retardant fabric can be widely applied to the preparation process of fluorescent flame-retardant protective clothing, so that the problems of flammability, thickness and poor air permeability of the existing fluorescent protective clothing are effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic knitting structure diagram of a fluorescent knitted flame-retardant fabric provided in embodiment 1 of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to one aspect of the invention, the fluorescent knitted flame-retardant fabric comprises a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer and the bottom layer are connected through the intermediate connecting layer;
wherein the surface layer is mainly knitted by fluorescent dyeing polyester filament; the middle connecting layer is mainly prepared by knitting middle connecting yarns obtained by blending polyester filaments and acrylic fibers; the bottom layer is mainly knitted by bottom layer flame-retardant yarns obtained by blending modacrylic, cellulose fibers and aramid fibers.
The invention provides a fluorescent knitted flame-retardant fabric which comprises a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer and the bottom layer are connected through the intermediate connecting layer; wherein the surface layer is mainly knitted by fluorescent dyeing polyester filament; the middle connecting layer is mainly prepared by knitting middle connecting yarns obtained by blending polyester filaments and acrylic fibers; the bottom layer is mainly knitted by bottom layer flame-retardant yarns obtained by blending modacrylic, cellulose fibers and aramid fibers. Above-mentioned fluorescence knitting flame retardant fabric full play fluorescence dyeing polyester filament, the respective effect of intermediate junction yarn and bottom flame retardant yarn, the surface fabric that obtains has high fluorescence orange warning effect and the fire-retardant protective effect of A1 level, low gram weight's knitting surface fabric is more frivolous comfortable, soft ventilative simultaneously, has realized the effective combination of protectiveness and snugness of fit, increased the use degree, have more extensive application, have low gram weight, ventilative, soft, frivolous comfortable advantage.
Specifically, the fluorescent knitted flame-retardant fabric is made of three kinds of yarns, the surface layer is a layer of thin polyester filaments, and the thin polyester filaments are all exposed on the surface of the fabric after being dyed and woven by fluorescent orange dye and meet European Union fluorescent standard EN 20471. The middle layer connecting yarns are made of flame-retardant polyester filament yarns and flame-retardant acrylic fibers which are alternately woven according to a certain proportion and can be exposed on two sides of the fabric in a small amount, so that the characteristics of fluorescence orange and flame retardance can be effectively considered, and meanwhile, the matching of the filament yarns and the short fibers can ensure the weavability of the fabric and the tightness of the fabric surface. The inner bottom yarn is a layer of thicker flame-retardant yarn, the main components of the inner bottom yarn are modacrylic/cellulose fiber/aramid blended yarn, the modacrylic accounts for 30-50%, the cellulose fiber accounts for 25-60%, and the aramid fiber accounts for 10-25%, so that the inner bottom yarn can effectively prevent polyester filaments from burning, does not generate molten drops and molten holes, and meets the European flame-retardant standard EN 11612A 1 level.
In a preferred embodiment of the present invention, the polyester filament comprises a flame retardant polyester filament having a content of 7000 of flame retardant phosphorus.
In a preferred embodiment of the present invention, the fluorescent-dyed polyester filament yarn is prepared by the following steps:
adding the polyester filament yarns into a dyeing agent at a bath ratio of 1: 7-10 at 128-130 ℃, and dyeing for 10-40 min to obtain fluorescent dyed polyester filament yarns;
preferably, the fluorescent-dyed polyester filament yarn is prepared by the following steps:
adding the polyester filament yarn into a dyeing agent at a bath ratio of 1:10 at 130 ℃, and dyeing for 20min to obtain the fluorescent dyed polyester filament yarn.
As a preferred embodiment, the fluorescent-dyed polyester filament is prepared by using a flame-retardant polyester filament with 75D and 7000 of phosphorus content.
In the above preferred embodiment, the staining agent comprises dispersed fluorescent orange 2RF, dispersed fluorescent orange GG, and dispersed fluorescent orange 2 GFL;
preferably, in the dyeing process, the dye is used in an amount of 2.5-5 owf%, and preferably 3 owf%.
As a preferable embodiment, the staining agent effectively meets the requirements of fluorescence before and after sunlight through the synergistic combination of the dispersed fluorescent orange 2RF, the dispersed fluorescent orange GG and the dispersed fluorescent orange 2GFL in a specific ratio.
In a preferred embodiment of the present invention, in the intermediate connecting yarn, a mass ratio of the polyester filaments to the acrylic fibers is 1:1 to 2.
In a preferred embodiment, the polyester filaments and the acrylon in the intermediate connecting yarn are in a ratio of 1: 1-2, fluorescent orange and flame retardant properties can be effectively considered, and meanwhile, the matching of the long filaments and the short fibers can ensure the weavability of the fabric and the tightness of the fabric surface.
In a preferred embodiment of the invention, the bottom flame-retardant yarn is mainly blended by the following fibers in percentage by mass: 30-50 wt% of modacrylic, 25-60 wt% of cellulose fiber and 10-25 wt% of aramid fiber.
As a preferable embodiment, the bottom layer flame-retardant yarn prepared from the modacrylic, the cellulose fiber and the aramid fiber in parts by mass can effectively block the combustion of polyester filaments, does not generate molten drops and molten holes, and meets the European flame-retardant standard EN 11612A 1 grade.
According to one aspect of the invention, the fluorescent knitted flame-retardant fabric is prepared by adopting a knitted three-layer structure weaving method;
according to the preparation method of the fluorescent knitted flame-retardant fabric, the fluorescent knitted flame-retardant fabric is prepared by adopting a knitting three-layer structure knitting method, and the preparation method has the advantages of simple processing technology and easiness in operation.
In a preferred embodiment of the present invention, the knitted three-layer structure weave is a plain six-pattern weave.
Preferably, the plain weave six-die method comprises the following steps:
the upper disc and the lower disc are arranged in a contraposition way; the upper disc of the first die weaves the bottom flame-retardant yarn and the second needle floating thread in a mode of first needle looping and then needle-by-needle alternation, and the lower disc does not weave; knitting the middle connecting yarns by the upper and lower plates of the second die in a tucking mode, and tucking by separating needles; the upper disc of the third mould is not woven, the first needles of the lower disc float, the second needles are looped and then weave the fluorescent-dyed polyester filaments in a needle-by-needle alternating mode, and the lower disc is not woven; the upper disc of the fourth mould weaves the bottom flame-retardant yarn in a way of first needle floating, second needle looping and needle-by-needle alternation, and the lower disc does not weave; knitting the middle connecting yarns by the upper and lower plates of the fifth die in a tucking mode, and tucking by separating needles; and weaving the fluorescent dyed polyester filament yarn on a lower disc of a sixth die.
In a preferred embodiment of the invention, the preparation method further comprises the steps of sequentially bleaching and post-treating the woven fluorescent knitted flame-retardant fabric;
in the preferred embodiment, the bleaching treatment step is to wash the fluorescent knitted flame-retardant fabric for 30-40 min at 90-95 ℃ by using a bleaching agent;
as a preferable embodiment, the brightness of the surface layer fluorescent orange can be further enhanced after the fluorescent knitted flame-retardant fabric woven by the fabric is subjected to bleaching treatment, and the fabric can achieve the flame-retardant effect and meet the fluorescent requirement of the high-visibility fabric.
In the preferred embodiment, the post-treatment step is to clean the fluorescent knitted flame-retardant fabric with deoxyenzyme TR-5W at 45-50 ℃ for 15-18 min.
According to one aspect of the invention, the fluorescent knitted flame-retardant fabric is applied to preparation of fluorescent flame-retardant protective clothing.
According to the application of the fluorescent knitted flame-retardant fabric provided by the invention, the fluorescent knitted flame-retardant fabric can be widely applied to the preparation process of fluorescent flame-retardant protective clothing, so that the problems of flammability, thickness and poor air permeability of the existing fluorescent protective clothing are effectively solved.
The technical solution of the present invention will be further described with reference to the following examples.
Example 1
A fluorescent knitted flame-retardant fabric comprises a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer is connected with the bottom layer through the intermediate connecting layer;
the surface layer is mainly knitted by fluorescent dyeing polyester filament;
the middle connecting layer is mainly prepared by knitting middle connecting yarns obtained by blending polyester filaments and acrylic fibers;
the bottom layer is mainly knitted by bottom layer flame-retardant yarns obtained by blending modacrylic, cellulose fibers and aramid fibers.
The manufacturing method of the fluorescent knitted flame-retardant fabric comprises the following steps:
(1) and preparing the fluorescent dyed polyester filament:
providing polyester filament, adding the polyester filament into a dyeing agent at 130 ℃ and a bath ratio of 1:10, and dyeing for 20min to obtain the fluorescent dyed polyester filament.
The dyeing process parameters of the fluorescent dyeing polyester filament are as follows:
dye component: disperse fluorescent orange 2RF + disperse fluorescent orange GG + disperse fluorescent orange 2 GFL;
the dye dosage is as follows: 3 owf%, wherein 2RF 1%, GG 1%, and 2GFL 1%;
auxiliary agent: HAC: 0.2mL, bath ratio: 1:10, whitening agent: FG-E: 0.5 percent;
washing with water: sodium hydrosulfite.
The fluorescence degree test result of the dyed fluorescence dyeing polyester filament is as follows:
| name of sample | x | y | β |
| 1 | 0.5974 | 0.3615 | 0.417 |
(2) Preparing an intermediate connecting yarn:
mixing polyester filament yarn and acrylic fiber in a ratio of 1:1 to obtain intermediate connecting yarns, and then dyeing by adopting cationic dye;
the intermediate connecting yarn dyeing process parameters are as follows:
the dye dosage is as follows: 10GFF 1.5%, 5GN red 0.5%, BAC 1.5%, the balance being water; the total content of the dye is 100%;
auxiliary agent: HAC: 0.2%, AC-SP: 0.2%, knit softener: 4.5 percent;
the dyeing process comprises the following steps: 2# acrylic fiber dyeing process; the method specifically comprises the following steps: at 100 ℃, 1: adding the acrylic fiber into the coloring agent at a bath ratio of 10, and dyeing for 20min to obtain the dyed acrylic fiber.
(3) Preparing bottom layer flame-retardant yarns:
the yarn is provided according to the following mass percentage, 40 wt% of modacrylic, 40 wt% of cellulose fiber and 20 wt% of aramid fiber, and then blended to obtain the bottom layer flame-retardant yarn.
(4) And a weaving process:
model: 34' 19G;
yarn: 60D +50S/1+ 40S/1;
wire length: 13+14.5+14.5 (cm/G).
(5) And a specific weaving method:
as shown in fig. 1, this example is prepared by a tabby six-die method, which includes the following steps: the upper disc and the lower disc are arranged in a contraposition way; the upper disc of the first die weaves the bottom flame-retardant yarn and the second needle floating thread in a mode of first needle looping and then needle-by-needle alternation, and the lower disc does not weave; knitting the middle connecting yarns by the upper and lower plates of the second die in a tucking mode, and tucking by separating needles; the upper disc of the third mould is not woven, the first needles of the lower disc float, the second needles are looped and then weave the fluorescent-dyed polyester filaments in a needle-by-needle alternating mode, and the lower disc is not woven; the upper disc of the fourth mould weaves the bottom flame-retardant yarn in a way of first needle floating, second needle looping and needle-by-needle alternation, and the lower disc does not weave; knitting the middle connecting yarns by the upper and lower plates of the fifth die in a tucking mode, and tucking by separating needles; and weaving the fluorescent dyed polyester filament yarn on a lower disc of a sixth die.
Fig. 1 is a schematic knitting structure diagram of the fluorescent knitted flame-retardant fabric of the embodiment.
(6) Bleaching and post-treatment:
washing the woven fluorescent knitted flame-retardant fabric for 30min at 90 ℃ by using a bleaching agent; and then cleaning the fluorescent knitted flame-retardant fabric by using deoxyenzyme TR-5W at 45 ℃ for 15min to obtain the fluorescent knitted flame-retardant fabric.
Wherein the bleaching aid comprises: adding a whitening agent BAC: 0.5%, knit softener: 3%, glacial acetic acid: 1%, hydrogen peroxide: 2%, deoxyenzyme TR-5W: 0.05%, refining enzyme: 0.3 percent.
Example 2
A fluorescent knitted flame-retardant fabric comprises a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer is connected with the bottom layer through the intermediate connecting layer;
the surface layer is mainly knitted by fluorescent dyeing polyester filament;
the middle connecting layer is mainly prepared by knitting middle connecting yarns obtained by blending polyester filaments and acrylic fibers;
the bottom layer is mainly knitted by bottom layer flame-retardant yarns obtained by blending modacrylic, cellulose fibers and aramid fibers.
The manufacturing method of the fluorescent knitted flame-retardant fabric comprises the following steps:
(1) and preparing the fluorescent dyed polyester filament:
providing polyester filament, adding the polyester filament into a dyeing agent at 140 ℃ and a bath ratio of 1:20, and dyeing for 30min to obtain the fluorescent dyed polyester filament.
The dyeing process parameters of the fluorescent dyeing polyester filament are as follows:
dye component: disperse fluorescent orange 2RF + disperse fluorescent orange GG + disperse fluorescent orange 2 GFL;
the dye dosage is as follows: 4 owf%, wherein 2RF 2%, GG 1%, 2GFL 1%;
auxiliary agent: HAC: 0.2mL, bath ratio: 1:20, whitening agent: FG-E: 0.5 percent;
washing with water: sodium hydrosulfite.
(2) Preparing an intermediate connecting yarn:
mixing polyester filament yarn and acrylic fiber in a ratio of 1:2 to obtain intermediate connecting yarns, and then dyeing by adopting cationic dye;
the intermediate connecting yarn dyeing process parameters are as follows:
the dye dosage is as follows: 10GFF 1.5%, 5GN red 0.5%, BAC 1.5%, the balance being water; the total content of the dye is 100%;
auxiliary agent: HAC: 0.2%, AC-SP: 0.2%, knit softener: 4.5 percent;
the dyeing process comprises the following steps: 2# acrylic fiber dyeing process; the method specifically comprises the following steps: at 100 ℃, 1: adding the acrylic fiber into the coloring agent at a bath ratio of 10, and dyeing for 20min to obtain the dyed acrylic fiber.
(3) Preparing bottom layer flame-retardant yarns:
the yarn is provided according to the following mass percentage, 30 wt% of modacrylic, 60 wt% of cellulose fiber and 10 wt% of aramid fiber are blended to obtain the bottom layer flame-retardant yarn.
(4) And a weaving process: the same as example 1;
(5) and a specific weaving method: the same as example 1;
(6) bleaching and post-treatment: the same as in example 1.
Example 3
A fluorescent knitted flame-retardant fabric comprises a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer is connected with the bottom layer through the intermediate connecting layer;
the surface layer is mainly knitted by fluorescent dyeing polyester filament;
the middle connecting layer is mainly prepared by knitting middle connecting yarns obtained by blending polyester filaments and acrylic fibers;
the bottom layer is mainly knitted by bottom layer flame-retardant yarns obtained by blending modacrylic, cellulose fibers and aramid fibers.
The manufacturing method of the fluorescent knitted flame-retardant fabric comprises the following steps:
(1) and preparing the fluorescent dyed polyester filament:
providing polyester filament, adding the polyester filament into a dyeing agent at the temperature of 110 ℃ and the bath ratio of 1:15, and dyeing for 25min to obtain the fluorescent dyed polyester filament.
The dyeing process parameters of the fluorescent dyeing polyester filament are as follows:
dye component: disperse fluorescent orange 2RF + disperse fluorescent orange GG + disperse fluorescent orange 2 GFL;
the dye dosage is as follows: 3 owf%, wherein 2RF 1%, GG 1%, and 2GFL 1%;
auxiliary agent: HAC: 0.2mL, bath ratio: 1:15, whitening agent: FG-E: 0.5 percent;
washing with water: sodium hydrosulfite.
(2) Preparing an intermediate connecting yarn:
mixing polyester filament yarn and acrylic fiber in a ratio of 1:1 to obtain intermediate connecting yarns, and then dyeing by adopting cationic dye;
the intermediate connecting yarn dyeing process parameters are as follows:
the dye dosage is as follows: 10GFF 1.5%, 5GN red 0.5%, BAC 1.5%, the balance being water; the total content of the dye is 100%;
auxiliary agent: HAC: 0.2%, AC-SP: 0.2%, knit softener: 4.5 percent;
the dyeing process comprises the following steps: 2# acrylic fiber dyeing process; the method specifically comprises the following steps: at 100 ℃, 1: adding the acrylic fiber into the coloring agent at a bath ratio of 10, and dyeing for 20min to obtain the dyed acrylic fiber.
(3) Preparing bottom layer flame-retardant yarns:
the yarn is provided according to the following mass percentage, namely, 50 wt% of modacrylic, 25 wt% of cellulose fiber and 25 wt% of aramid fiber, and then blended to obtain the bottom layer flame-retardant yarn.
(4) And a weaving process: the same as example 1;
(5) and a specific weaving method: the same as example 1;
(6) bleaching and post-treatment: the same as in example 1.
Comparative example 1
A fluorescent knitted flame-retardant fabric comprises a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer is connected with the bottom layer through the intermediate connecting layer;
the surface layer is mainly knitted by fluorescent dyeing polyester filament;
the middle connecting layer is mainly made of fluorescent dyed polyester filament yarn through knitting;
the bottom layer is mainly knitted by fluorescent dyeing polyester filament yarns.
The manufacturing method of the fluorescent knitted flame-retardant fabric comprises the following steps:
(1) and preparing the fluorescent dyed polyester filament:
providing polyester filament, adding the polyester filament into a dyeing agent at 130 ℃ and a bath ratio of 1:10, and dyeing for 20min to obtain the fluorescent dyed polyester filament.
The dyeing process parameters of the fluorescent dyeing polyester filament are as follows:
dye component: disperse fluorescent orange 2RF + disperse fluorescent orange GG + disperse fluorescent orange 2 GFL;
the dye dosage is as follows: 3 owf%, wherein 2RF 1%, GG 1%, and 2GFL 1%;
auxiliary agent: HAC: 0.2mL, bath ratio: 1:10, whitening agent: FG-E: 0.5 percent;
washing with water: sodium hydrosulfite.
(2) Preparing an intermediate connecting yarn:
performing the same steps as the step (1) to obtain the fluorescent dyed polyester filament;
(3) preparing bottom layer flame-retardant yarns:
performing the same steps as the step (1) to obtain the fluorescent dyed polyester filament;
(4) and a weaving process: the same as example 1;
(5) and a specific weaving method: the same as example 1;
(6) bleaching and post-treatment: the same as in example 1.
Comparative example 2
A fluorescent knitted flame-retardant fabric comprises a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer is connected with the bottom layer through the intermediate connecting layer;
the surface layer is mainly knitted by fluorescent dyeing polyester filament;
the middle connecting layer is mainly made of fluorescent dyed polyester filament yarn through knitting;
the bottom layer is mainly knitted by bottom layer flame-retardant yarns obtained by blending modacrylic, cellulose fibers and aramid fibers.
The manufacturing method of the fluorescent knitted flame-retardant fabric comprises the following steps:
(1) and preparing the fluorescent dyed polyester filament:
providing polyester filament, adding the polyester filament into a dyeing agent at 130 ℃ and a bath ratio of 1:10, and dyeing for 20min to obtain the fluorescent dyed polyester filament.
The dyeing process parameters of the fluorescent dyeing polyester filament are as follows:
dye component: disperse fluorescent orange 2RF + disperse fluorescent orange GG + disperse fluorescent orange 2 GFL;
the dye dosage is as follows: 3 owf%, wherein 2RF 1%, GG 1%, and 2GFL 1%;
auxiliary agent: HAC: 0.2mL, bath ratio: 1:10, whitening agent: FG-E: 0.5 percent;
washing with water: sodium hydrosulfite.
(2) Preparing an intermediate connecting yarn:
performing the same steps as the step (1) to obtain the fluorescent dyed polyester filament;
(3) preparing bottom layer flame-retardant yarns: the same as example 1;
(4) and a weaving process: the same as example 1;
(5) and a specific weaving method: the same as example 1;
(6) bleaching and post-treatment: the same as in example 1.
Comparative example 3
A fluorescent knitted flame-retardant fabric comprises a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer is connected with the bottom layer through the intermediate connecting layer;
the surface layer is mainly prepared by knitting acrylic filaments;
the middle connecting layer is mainly made of flame-retardant acrylic fibers;
the bottom layer is mainly knitted by bottom layer flame-retardant yarns obtained by blending modacrylic, cellulose fibers and aramid fibers.
The manufacturing method of the fluorescent knitted flame-retardant fabric comprises the following steps:
(1) and preparing acrylic fiber filaments:
acrylic filaments 75D/40F produced by Kampo volkstran Limited are used.
(2) And preparing flame-retardant acrylic fibers:
adopts modacrylic blended yarn (45S/1 flame-retardant acrylic yarn) produced by the Fushuri Rihua fiber Co.
(3) Preparing bottom layer flame-retardant yarns: the same as example 1;
(4) and a weaving process: the same as example 1;
(5) and a specific weaving method: the same as example 1;
(6) bleaching and post-treatment: the same as in example 1.
Experimental example 1
In order to show that the fluorescent knitted flame-retardant fabric prepared by the method has the advantages of low gram weight, ventilation, softness, lightness, thinness and comfort, meets the fluorescent orange standard of EN20471 and the A1-grade flame-retardant standard of EN11612, the fluorescent knitted flame-retardant fabric prepared in example 1 and comparative examples 1-3 is detected, and the results are as follows:
in conclusion, the fluorescent knitted flame-retardant fabric prepared by the method fully exerts respective effects of the fluorescent dyed polyester filament yarns, the intermediate connecting yarns and the bottom flame-retardant yarns, the obtained fabric has a high fluorescent orange warning effect and an A1-grade flame-retardant protection effect, and meanwhile, the knitted fabric with the low gram weight is lighter, thinner, more comfortable, softer and more breathable, so that the effective combination of the protection property and the wearing comfort is realized, the use degree is increased, the application range is wider, and the advantages of low gram weight, breathability, softness, lightness, thinness and comfort are achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The fluorescent knitted flame-retardant fabric is characterized by comprising a surface layer, an intermediate connecting layer and a bottom layer, wherein the surface layer and the bottom layer are connected through the intermediate connecting layer;
wherein the surface layer is mainly knitted by fluorescent dyeing polyester filament; the middle connecting layer is mainly prepared by knitting middle connecting yarns obtained by blending polyester filaments and acrylic fibers; the bottom layer is mainly knitted by bottom layer flame-retardant yarns obtained by blending modacrylic, cellulose fibers and aramid fibers.
2. The fluorescent knitted flame-retardant fabric according to claim 1, wherein the polyester filaments comprise flame-retardant polyester filaments, and the content of flame retardant phosphorus in the flame-retardant polyester filaments is 7000.
3. The fluorescent knitted flame-retardant fabric according to claim 1, wherein the fluorescent dyed polyester filament yarn is prepared by the following steps:
adding the polyester filament yarns into a dyeing agent at a bath ratio of 1: 7-10 at 128-130 ℃, and dyeing for 10-40 min to obtain fluorescent dyed polyester filament yarns;
preferably, the fluorescent-dyed polyester filament yarn is prepared by the following steps:
adding the polyester filament yarn into a dyeing agent at a bath ratio of 1:10 at 130 ℃, and dyeing for 20min to obtain the fluorescent dyed polyester filament yarn.
4. The fluorescent knitted flame retardant fabric of claim 3, wherein the coloring agent comprises dispersed fluorescent orange 2RF, dispersed fluorescent orange GG, and dispersed fluorescent orange 2 GFL;
preferably, in the dyeing process, the dye is used in an amount of 2.5-5 owf%, and preferably 3 owf%.
5. The fluorescent knitted flame-retardant fabric according to claim 1, wherein the mass ratio of the polyester filaments to the acrylic fibers in the intermediate connecting yarns is 1:1 to 2.
6. The fluorescent knitted flame-retardant fabric according to claim 1, wherein the bottom flame-retardant yarn is mainly blended by the following fibers in percentage by mass: 30-50 wt% of modacrylic, 25-60 wt% of cellulose fiber and 10-25 wt% of aramid fiber.
7. A preparation method of the fluorescent knitted flame-retardant fabric according to any one of claims 1 to 4, characterized in that the fluorescent knitted flame-retardant fabric is prepared by adopting a knitted three-layer structure weaving method;
preferably, the knitting three-layer structure weaving method is a plain weave six-die weaving method.
8. The preparation method of the fluorescent knitted flame-retardant fabric according to claim 5, wherein the plain weave six-die method comprises the following steps:
the upper disc and the lower disc are arranged in a contraposition way; the upper disc of the first die weaves the bottom flame-retardant yarn and the second needle floating thread in a mode of first needle looping and then needle-by-needle alternation, and the lower disc does not weave; knitting the middle connecting yarns by the upper and lower plates of the second die in a tucking mode, and tucking by separating needles; the upper disc of the third mould is not woven, the first needles of the lower disc float, the second needles are looped and then weave the fluorescent-dyed polyester filaments in a needle-by-needle alternating mode, and the lower disc is not woven; the upper disc of the fourth mould weaves the bottom flame-retardant yarn in a way of first needle floating, second needle looping and needle-by-needle alternation, and the lower disc does not weave; knitting the middle connecting yarns by the upper and lower plates of the fifth die in a tucking mode, and tucking by separating needles; and weaving the fluorescent dyed polyester filament yarn on a lower disc of a sixth die.
9. The preparation method of the fluorescent knitted flame-retardant fabric according to claim 5, characterized by further comprising the steps of sequentially bleaching and post-treating the woven fluorescent knitted flame-retardant fabric;
preferably, the bleaching treatment step is to wash the fluorescent knitted flame-retardant fabric for 30-40 min by using a bleaching agent at 90-95 ℃;
preferably, the post-treatment step is to clean the fluorescent knitted flame-retardant fabric for 15-18 min by using deoxyenzyme TR-5W at 45-50 ℃.
10. The application of the fluorescent knitted flame-retardant fabric according to any one of claims 1 to 9 in preparation of fluorescent flame-retardant protective clothing.
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| CN115125652A (en) * | 2022-08-29 | 2022-09-30 | 常熟市宝沣特种纤维有限公司 | Flame-retardant anti-cutting fluorescent yellow fabric and application thereof |
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