CN119162825A - Flame-retardant silk fiber material and flame-retardant silk fabric and preparation method thereof - Google Patents
Flame-retardant silk fiber material and flame-retardant silk fabric and preparation method thereof Download PDFInfo
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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
- 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
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- 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
- D06M11/07—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/155—Halides of elements of Groups 2 or 12 of the Periodic Table
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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
- D06M11/07—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/17—Halides of elements of Groups 3 or 13 of the Periodic Table
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
- D06M13/238—Tannins, e.g. gallotannic acids
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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
- 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
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
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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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/30—Flame or heat resistance, fire retardancy properties
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
The invention provides a flame-retardant silk fiber material, a flame-retardant silk fabric and a preparation method thereof, wherein the silk fiber and the silk fabric are sequentially modified by immersing the silk fiber and the silk fabric in a mixed solution of 70-85 ℃ hydroxylation modified lignin sulfonate and metal salt for heat preservation for 45-75 minutes, immersing the silk fiber and the silk fabric in a mixed solution of 70-85 ℃ chitosan, citric acid and tannic acid after controlling the rolling residual rate to be 75% -100%, and baking the silk fiber and the silk fabric at 120-150 ℃ after controlling the rolling residual rate to be 90% -120%, and washing the silk fiber and the silk fabric with water and naturally airing the silk fiber and the silk fabric after baking. According to the flame-retardant silk fiber material and the flame-retardant silk fabric, the flame-retardant property of the flame-retardant silk fabric is improved by modifying the mixed solution of the hydroxylation modified lignosulfonate and the metal salt and modifying the mixed solution of the hydroxylation modified lignosulfonate and the mixed solution of the chitosan, the citric acid and the tannic acid in sequence, the air permeability of the flame-retardant silk fabric is not affected, and the flame-retardant property is still kept high after multiple water washes.
Description
Technical Field
The invention relates to the field of textile materials, in particular to a flame-retardant silk fiber material, a flame-retardant silk fabric and a preparation method thereof.
Background
The silk fabric has excellent comfortable air permeability and skin-friendly property, is widely used for clothes and decorative furniture, and has skin-friendly property which is incomparable with all other fabrics. However, curtains, wall cloths, home clothes, carpets, cloth sofas and combustion thereof in the life of residents have great specific gravity on the fact that fire houses and potential safety hazards caused by clothes and decorative furniture in the life of the residents are also caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a flame-retardant silk fiber material, a flame-retardant silk fabric and a preparation method thereof.
In order to achieve the aim, the invention adopts the technical scheme that the flame-retardant silk fiber material is obtained by modifying silk fiber sequentially through the following steps of;
(1) Immersing the silk fiber in a mixed solution of hydroxylation modified lignosulfonate at 70-85 ℃ and metal salt for 45-75 minutes, wherein the metal salt is calcium chloride, magnesium chloride or aluminum chloride;
(2) Immersing the silk fiber treated in the step (1) in a mixed solution of chitosan, citric acid and tannic acid at 70-85 ℃ for 45-75 minutes after controlling the rolling residual rate to be 75-100%;
(3) The real silk fiber treated in the step (2) is baked at 120-150 ℃ after the rolling surplus ratio is controlled to be 90-120%;
(4) Rinsing with water after baking and naturally airing.
The flame-retardant silk fiber material is modified by the mixed solution of the hydroxylation modified lignosulfonate and the metal salt and the mixed solution of the chitosan, the citric acid and the tannic acid in sequence, so that the flame-retardant property of the silk fiber material is improved, the air permeability of the silk fiber material is not affected, and the modified mixed solution of the hydroxylation modified lignosulfonate and the metal salt and the modified mixed solution of the chitosan, the citric acid and the tannic acid are combined, so that the silk fiber material still maintains excellent flame-retardant property after being washed for many times, and has strong washing resistance.
Preferably, the concentration of the hydroxylation modified lignosulfonate is 50-80 g/L, and the hydroxylation modified lignosulfonate is sodium hydroxylation modified lignosulfonate.
The sodium lignosulfonate modified by hydroxylation is used for modifying the flame-retardant silk fiber material, and the concentration of the lignosulfonate modified by hydroxylation is controlled, so that the flame-retardant property of the flame-retardant silk fiber material is better.
Preferably, the preparation method of the hydroxylation modified lignosulfonate comprises the following steps:
(a) Mixing the mixed aqueous solution of lignosulfonate and hydrogen peroxide with ferric hydroxide, and then reacting in a water bath at 70-90 ℃ for 30-60 minutes, wherein the weight ratio of lignosulfonate to hydrogen peroxide to ferric hydroxide is 10 (3-5) (1.5-3);
(b) And (3) separating and removing ferric hydroxide in the mixed solution, regulating the pH to be less than 6.5, and collecting solids to obtain the hydroxylation modified lignosulfonate.
Preferably, in the step (1), the concentration of the metal salt is 1.5-3 g/L.
Preferably, in the step (2), the concentration of the chitosan is 18-25 g/L, the weight ratio of the chitosan to the tannic acid is 10 (0.5-1.5), and the weight ratio of the chitosan to the citric acid is 10 (0.5-1).
The chitosan, the tannic acid and the citric acid are matched, so that the modified flame-retardant silk fiber material has better flame retardant property and better washing resistance.
Preferably, in the step (3), the baking time is 1 to 2.5 hours.
Preferably, the silk fiber is mulberry silk, tussah silk, castor silk or cassava silk.
The invention also provides a flame-retardant silk fabric, which is woven by any one of the flame-retardant silk fiber materials.
The invention also provides a flame-retardant silk fabric, which is obtained by modifying silk fabric sequentially through the following steps of;
(1) Immersing the silk fabric in a mixed solution of hydroxylated modified lignosulfonate and metal salt at 70-85 ℃ for 45-75 minutes, wherein the metal salt is calcium chloride, magnesium chloride or aluminum chloride;
(2) Immersing the silk fabric treated in the step (1) in a mixed solution of chitosan, citric acid and tannic acid at 70-85 ℃ for 45-75 minutes after controlling the rolling surplus rate to be 75-100%;
(3) The silk fabric treated in the step (2) is baked at 120-150 ℃ after the rolling surplus ratio is controlled to be 90-120%;
(4) Rinsing with water after baking and naturally airing.
The flame-retardant silk fabric is modified by the mixed solution of the hydroxylation modified lignosulfonate and the metal salt and the mixed solution of the hydroxylation modified lignosulfonate, the citric acid and the tannic acid in sequence, so that the flame-retardant property of the flame-retardant silk fabric is improved, the air permeability of the flame-retardant silk fabric is not affected, the mixed solution of the hydroxylation modified lignosulfonate and the metal salt is modified and combined by the mixed solution of the hydroxylation modified lignosulfonate, the citric acid and the tannic acid, the flame-retardant silk fabric still maintains excellent flame-retardant property after being washed by water for a plurality of times, and the flame-retardant silk fabric is high in washing resistance.
Preferably, in the step (1), the concentration of the hydroxylated modified lignin sulfonate is 50-80 g/L, and the hydroxylated modified lignin sulfonate is hydroxylated modified sodium lignin sulfonate.
The preparation method of the hydroxylation modified lignosulfonate comprises the steps of (a) mixing a mixed aqueous solution of lignosulfonate and hydrogen peroxide with ferric hydroxide, and then reacting in a water bath at 70-90 ℃ for 30-60 minutes, wherein the weight ratio of the lignosulfonate to the hydrogen peroxide to the ferric hydroxide is 10 (3-5) to 1.5-3, and (b) separating and removing the ferric hydroxide in the mixed solution, then adjusting the pH value to be less than 6.5, and collecting solids to obtain the hydroxylation modified lignosulfonate.
Preferably, the concentration of the metal salt is 1.5-3 g/L.
Preferably, in the step (2), the concentration of the chitosan is 18-25 g/L, the weight ratio of the chitosan to the tannic acid is 10 (0.5-1.5), and the weight ratio of the chitosan to the citric acid is 10 (0.5-1).
Preferably, in the step (3), the baking time is 1 to 2.5 hours.
Preferably, the silk fabric is a textile fabric of mulberry silk, tussah silk, castor silk or cassava silk.
The invention provides a preparation method of flame-retardant silk fabric, which comprises the following steps:
(1) Immersing the silk fabric in a mixed solution of 70-85 ℃ hydroxylation modified lignosulfonate and metal salt for heat preservation for 45-75 minutes, wherein the metal salt is calcium chloride, magnesium chloride or aluminum chloride;
(2) Immersing the silk fabric treated in the step (1) in a mixed solution of chitosan, citric acid and tannic acid at 70-85 ℃ for 45-75 minutes after controlling the rolling surplus rate to be 75-100%;
(3) The silk fabric treated in the step (2) is baked at 120-150 ℃ after the rolling surplus ratio is controlled to be 90-120%;
(4) Rinsing with water after baking and naturally airing.
Preferably, in the step (1), the concentration of the hydroxylated modified lignin sulfonate is 50-80 g/L, and the hydroxylated modified lignin sulfonate is hydroxylated modified sodium lignin sulfonate.
The preparation method of the hydroxylation modified lignosulfonate comprises the steps of (a) mixing a mixed aqueous solution of lignosulfonate and hydrogen peroxide with ferric hydroxide, and then reacting in a water bath at 70-90 ℃ for 30-60 minutes, wherein the weight ratio of the lignosulfonate to the hydrogen peroxide to the ferric hydroxide is 10 (3-5) to 1.5-3, and (b) separating and removing the ferric hydroxide in the mixed solution, then adjusting the pH value to be less than 6.5, and collecting solids to obtain the hydroxylation modified lignosulfonate.
Preferably, the concentration of the metal salt is 1.5-3 g/L.
Preferably, in the step (2), the concentration of the chitosan is 18-25 g/L, the weight ratio of the chitosan to the tannic acid is 10 (0.5-1.5), and the weight ratio of the chitosan to the citric acid is 10 (0.5-1).
Preferably, in the step (3), the baking time is 1 to 2.5 hours.
Preferably, the silk fabric is a textile fabric of mulberry silk, tussah silk, castor silk or cassava silk.
The flame-retardant silk fiber material and the flame-retardant silk fabric have the beneficial effects that the flame-retardant silk fiber material and the flame-retardant silk fabric are sequentially modified by the mixed solution of the hydroxylation modified lignosulfonate and the metal salt and the mixed solution of the chitosan, the citric acid and the tannic acid, so that the flame-retardant property of the flame-retardant silk fabric is improved, the air permeability of the flame-retardant silk fabric is not influenced, and the modified mixed solution of the hydroxylation modified lignosulfonate and the metal salt and the modified mixed solution of the chitosan, the citric acid and the tannic acid are combined, so that the flame-retardant silk fabric still maintains excellent flame retardant property after being washed for a plurality of times, and has strong water-washing resistance.
Drawings
Fig. 1 is a graph showing a test result of flame retardant performance of the flame retardant silk fabric according to the embodiment of the invention after cleaning.
Detailed Description
For a better description of the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to the following specific examples.
Example 1
As the flame-retardant silk fiber material, the silk fiber is modified in sequence by the following steps to obtain the flame-retardant silk fiber material;
(1) Immersing real silk fibers in a mixed solution of hydroxylation modified lignosulfonate at 70-85 ℃ and metal salt for heat preservation for 45-75 minutes, wherein the metal salt is calcium chloride, magnesium chloride or aluminum chloride, the concentration of the metal salt is 1.5-3 g/L, and the real silk fibers are mulberry silk, tussah silk, castor silk or cassava silk;
(2) Immersing the silk fiber treated in the step (1) in a mixed solution of chitosan, citric acid and tannic acid at 70-85 ℃ for 45-75 minutes after controlling the rolling residual rate to be 75-100%, wherein the concentration of the chitosan is 18-25 g/L, the weight ratio of the chitosan to the tannic acid is 10 (0.5-1.5), and the weight ratio of the chitosan to the citric acid is 10 (0.5-1);
(3) Baking the silk fiber treated in the step (2) at 120-150 ℃ for 1-2.5 hours after the rolling surplus rate is controlled to be 90-120%;
(4) Rinsing with water after baking and naturally airing.
The concentration of the hydroxylation modified lignosulfonate is 50-80 g/L, the hydroxylation modified lignosulfonate is sodium hydroxylation modified lignosulfonate, and the preparation method of the hydroxylation modified lignosulfonate comprises the following steps:
(a) Mixing the mixed aqueous solution of lignosulfonate and hydrogen peroxide with ferric hydroxide, and then reacting in a water bath at 70-90 ℃ for 30-60 minutes, wherein the weight ratio of lignosulfonate to hydrogen peroxide to ferric hydroxide is 10 (3-5) (1.5-3);
(b) And (3) separating and removing ferric hydroxide in the mixed solution, regulating the pH to be less than 6.5, and collecting solids to obtain the hydroxylation modified lignosulfonate.
Example 2
As the flame-retardant silk fabric, the silk fabric is modified in sequence through the following steps to obtain the flame-retardant silk fabric, wherein the silk fabric selected in the embodiment is a silk double-crepe, and 52g/m 2;
(1) Immersing silk fabric in a mixed solution of 60g/L hydroxylated modified sodium lignin sulfonate and metal salt, heating to 80 ℃, and preserving heat for 60 minutes, wherein the metal salt is calcium chloride, and the concentration of the calcium chloride is 2g/L;
(2) Immersing the silk fabric treated in the step (1) in a mixed solution of chitosan, citric acid and tannic acid after controlling the rolling surplus rate to be 85%, heating to 80 ℃, and preserving heat for 60 minutes, wherein the concentration of the chitosan is 20g/L, the weight ratio of the chitosan to the citric acid is 10:1, and the weight ratio of the chitosan to the tannic acid is 10:0.8;
(3) Baking the silk fabric treated in the step (2) for 1.5 hours at 130 ℃ after the rolling surplus rate is controlled to be 105%;
(4) Rinsing with deionized water after baking and naturally airing.
The preparation method of the hydroxylation modified sodium lignin sulfonate comprises the steps of (a) mixing a mixed aqueous solution of sodium lignin sulfonate and hydrogen peroxide with ferric hydroxide, then reacting for 45 minutes in an 80 ℃ water bath, wherein the weight ratio of lignin sulfonate to hydrogen peroxide to ferric hydroxide is 10:4:2, the concentration of sodium lignin sulfonate is 50g/L, and (b) separating and removing ferric hydroxide in the mixed solution, then adjusting the pH value to be less than 6.5, and collecting solids to obtain the hydroxylation modified sodium lignin sulfonate.
Example 3
As a flame retardant silk fabric of the present embodiment, the only difference between the present embodiment and the embodiment 2 is that magnesium chloride is used instead of calcium chloride.
Example 4
As the flame-retardant silk fabric in the embodiment of the invention, the only difference between the embodiment and the embodiment 2 is that in the step (2), the silk fabric treated in the step (1) is immersed in a mixed solution of chitosan, citric acid and tannic acid after the rolling residual rate is controlled to be 75%, and the temperature is raised to 80 ℃ for 60 minutes.
Example 5
As the flame-retardant silk fabric in the embodiment of the invention, the only difference between the embodiment and the embodiment 2 is that in the step (2), the silk fabric treated in the step (1) is immersed in a mixed solution of chitosan, citric acid and tannic acid after the rolling residual rate is controlled to be 95%, and the temperature is raised to 80 ℃ for 60 minutes.
Example 6
As the flame-retardant silk fabric in the embodiment of the invention, the only difference between the embodiment and the embodiment 2 is that the silk fabric treated in the step (1) is immersed in a mixed solution of chitosan, citric acid and tannic acid after the rolling surplus rate is controlled to be 85%, and then the temperature is raised to 70 ℃ for 60 minutes.
Example 7
As a flame-retardant silk fabric in the embodiment of the invention, the only difference between the embodiment and the embodiment 2 is that in the step (1), the concentration of the hydroxylation modified sodium lignin sulfonate is 50g/L.
Example 8
As a flame-retardant silk fabric in the embodiment of the invention, the only difference between the embodiment and the embodiment 2 is that in the step (1), the concentration of the sodium lignin sulfonate modified by hydroxylation is 70g/L.
Example 9
As a flame-retardant silk fabric in the embodiment of the invention, the only difference between the embodiment and the embodiment 2 is that in the step (1), the concentration of the sodium lignin sulfonate modified by hydroxylation is 80g/L.
Comparative example 1
The only difference between the comparative example and the example 2 is that in the step (1), no calcium chloride is added, namely, the real silk fabric is immersed in 60g/L of solution of hydroxylated modified sodium lignin sulfonate, and the temperature is raised to 80 ℃ and kept for 60 minutes.
Comparative example 2
The only difference between the flame-retardant silk fabric as the comparative example of the present invention and the example 2 is that sodium lignin sulfonate is used for replacing sodium lignin sulfonate modified by hydroxylation in the step (1).
Comparative example 3
The only difference between the comparative example and the example 2 is that in the step (2), the concentration of chitosan is 5g/L, the concentration of tannic acid is 2g/L, and the concentration of citric acid is 1.6g/L.
Comparative example 4
The only difference between the flame-retardant silk fabric used as the comparative example and the embodiment 2 is that tannic acid is not added in the step (2), namely the silk fabric treated in the step (1) is immersed in a mixed solution of chitosan and citric acid to be heated to 80 ℃ for 60 minutes after the rolling residual rate is controlled to be 85%.
Comparative example 5
The only difference between the flame-retardant silk fabric used as the comparative example and the embodiment 2 is that citric acid is not added in the step (2), namely the silk fabric treated in the step (1) is immersed in a mixed solution of chitosan and tannic acid for heating to 80 ℃ and preserving heat for 60 minutes after the rolling residual rate is controlled to be 85%.
1. Experimental method
1. The flame-retardant silk fabric is prepared according to examples 2-9 and comparative examples 1-5, 6 sheets are prepared according to examples 1-5, and the silk double-crepe is immersed by the solutions in the step (1) and the step (2), and the silk fabric is unfolded when immersed. The reference substance is 52g/m 2 real silk double crepe.
2. Air permeability test was performed under the same parameter conditions using a model YG461E-II full-automatic air permeability tester with reference to GB/T5453. 3 samples were set in parallel.
3. And (5) testing flame retardant property.
Limiting Oxygen Index (LOI) of silk fabric is tested on FTTO 0080 type automatic oxygen index instrument by referring to GB/T5454 "oxygen index method for textile combustion Performance test". 3 samples were set in parallel.
4. Testing of flame retardant properties after washing.
The bath ratio is 1:50, the weight of the silk and wool detergent is 3.7g/L, the vertical decontamination tester is preheated to 40 ℃, the stirring speed is 80 r/min, and after washing, the silk and wool detergent is washed 2 times with deionized water and naturally dried. The flame retardant property is tested by using the flame retardant property test method.
The limiting oxygen indexes of the silk fabrics washed 1 time, 2 times, 3 times, 4 times and 5 times according to the method are respectively tested.
2. Experimental results.
1. The results of the air permeability and flame retardance of examples 2 to 9 and comparative examples 1 to 5 are shown in Table 1.
TABLE 1 air permeability and flame retardant Properties of Silk fabrics
| Sample of | Air permeability (mm/second) | Limiting oxygen index (LOI/%) |
| Example 2 | 504.8 | 32.4 |
| Example 3 | 500.3 | 31.9 |
| Example 4 | 504.3 | 30.6 |
| Example 5 | 500.3 | 33.0 |
| Example 6 | 500.8 | 31.2 |
| Example 7 | 505.0 | 31.7 |
| Example 8 | 506.9 | 32.8 |
| Example 9 | 505.9 | 32.7 |
| Comparative example 1 | 505.4 | 26.7 |
| Comparative example 2 | 505.9 | 29.4 |
| Comparative example 3 | 488.4 | 25.8 |
| Comparative example 4 | 492.3 | 28.6 |
| Comparative example 5 | 497.7 | 29.2 |
| Reference substance | 508.3 | 24.6 |
As can be seen from Table 1, the flame retardant property of the flame retardant silk fabric is improved by modifying the mixed solution of the hydroxylation modified lignosulfonate and the metal salt and modifying the mixed solution of the hydroxylation modified lignosulfonate and the mixed solution of the chitosan, the citric acid and the tannic acid in sequence, and the air permeability of the flame retardant silk fabric is not affected basically. The lower air permeability of comparative examples 3, 4 and 5 in the above experimental results indicate that the modification mode in the above modification has an effect on air permeability. The modifications of comparative examples 3, 4 and 5 also improved flame retardant properties to some extent, but had a large influence on air permeability.
2. The silk fabrics of examples 2, 3 and comparative examples 1 to 5 were tested according to the test method for flame retardant property after washing, and the test results are shown in fig. 1.
As can be seen from fig. 1, the flame retardant properties of the silk fabrics of example 2 and example 3 remain substantially unchanged after the silk fabrics are subjected to multiple strong washes. The flame retardant property of the silk fabrics of comparative examples 3,4 and 5 is slowly reduced after a plurality of times of strong washing. The flame-retardant silk fabric disclosed by the invention still maintains excellent flame retardant property after being washed for many times, and has strong water washing resistance.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted equally without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411449885.3A CN119162825A (en) | 2024-10-17 | 2024-10-17 | Flame-retardant silk fiber material and flame-retardant silk fabric and preparation method thereof |
Applications Claiming Priority (1)
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