CN103284368A - Blended flame-retardant fabric and flame-retardant protecting clothes - Google Patents
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Abstract
The invention discloses blended flame-retardant fabric and flame-retardant protecting clothes. The blended flame-retardant fabric comprises the following components, by weight, 10-40 parts of flame-retardant vinylon fibers, 10-40 parts of high-temperature resistant fibers, 10-20 parts of poly (aryl-oxadiazole) fibers and 20-40 parts of flame-retardant viscose. The blended flame-retardant fabric is weaved by a normal method after the components are blended. The flame-retardant fabric is high in flame retardant property, moisture penetrability, air permeability and abrasive resistance.
Description
Technical Field
The invention relates to a fabric and protective clothing, in particular to a blended flame-retardant fabric and flame-retardant protective clothing.
Background
Firefighters, emergency response personnel, racing personnel, military personnel and industrial production personnel are often exposed to flame or high temperature, protective clothing or protective products required by the firefighters, the emergency response personnel, the racing personnel, the military personnel and the industrial production personnel need to be more wear-resistant besides high temperature resistance, and meanwhile, the high-temperature resistant flame-retardant fabric with the functions of comfort, moisture permeability, air permeability, peculiar smell elimination and the like is welcomed because the perspiration volume of a human body is discharged in times due to violent movement of the human body and high-temperature occasions.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a blended flame-retardant fabric.
The second technical problem to be solved by the invention is to provide a flame-retardant protective garment.
The technical problem to be solved by the invention is realized by the following technical scheme:
a blended flame-retardant fabric is woven by a conventional method after blending the following components in parts by weight:
10-40 parts of flame-retardant vinylon fibers;
10-40 parts of high-temperature resistant fiber.
A blended flame-retardant fabric is woven by a conventional method after blending the following components in parts by weight:
10-40 parts of flame-retardant vinylon fibers;
10-40 parts of high-temperature resistant fiber;
10-20 parts of polyaryl oxadiazole fiber.
A blended flame-retardant fabric is woven by a conventional method after blending the following components in parts by weight:
10-40 parts of flame-retardant vinylon fibers;
10-40 parts of high-temperature resistant fiber;
10-20 parts of polyaryl oxadiazole fiber;
20-40 parts of flame-retardant viscose fibers.
Wherein,
the high-temperature resistant fiber is one or a mixture of polysulfonamide fiber and aramid 1313 fiber.
The flame-retardant viscose fiber is prepared by the following method: mixing a flame retardant with a viscose solution, and molding according to a conventional wet spinning and spinning process to obtain the flame-retardant viscose fiber;
the flame retardant accounts for 5-15% of the mass of the flame-retardant viscose fiber;
the flame retardant consists of the following components in parts by mass: 20-40 parts of N, N' -bis (diphenoxythiophosphoryl) dithiooxalamide; 20-40 parts of N-hydroxymethyl-3- (dimethoxyphosphono) propionamide; 30-50 parts of tri (2, 3-dibromopropyl) isocyanurate.
Preferably, in the viscose solution, the weight percentage content of the alpha fibers is 8-9%, the weight percentage content of the sodium hydroxide is 4-6%, the falling ball viscosity is 45-65 seconds, and the ripening degree is 8-16%.
The invention also provides flame-retardant protective clothing which is made of the blended flame-retardant fabric.
Specifically, in the present invention:
the flame-retardant vinylon fiber is prepared by grafting a compound containing flame-retardant functional elements (halogen, phosphorus, nitrogen and the like) on a polyvinyl alcohol (PVA) macromolecule, or adding a flame retardant, blending, and then carrying out the technical processes of solution spinning, stretching, heat treatment, formalization and the like. At present, the main flame-retardant vinylon varieties are as follows: polyvinyl chloride fiber, CY841 fiber (trade name of decabromodiphenyl ether/antimony flame-retardant polyvinyl), high-strength flame-retardant polyvinyl alcohol fiber (decabromodiphenyl ethane flame-retardant high-strength polyvinyl alcohol fiber), and high-strength halogen-free flame-retardant polyvinyl alcohol fiber (flame retardant: DDPS flame-retardant fiber).
Taking CY841 fiber as an example, the fiber uses decabromodiphenyl ether and antimony trioxide as flame retardants, and adopts a common wet spinning method to produce flame-retardant vinylon; compared with the common vinylon, the decabromodiphenyl ether flame-retardant vinylon has smaller difference of the skin-core layer structure, the flame retardant is uniformly dispersed in the fiber in a granular form, and the continuous phase is PVA (polyvinyl alcohol), so that the flame-retardant fiber with less flame retardant on the surface layer is obtained.
The high-temperature resistant fiber mainly comprises polysulfonamide fiber and aramid fiber 1313 fiber.
The polysulfonamide fiber is also called polysulfonamide fiber, is called PSA fiber for short, and is named as a Teran (TANLON). Polysulfonamide is an aromatic polyamide fiber with a special structure known as polyphenylsulfone terephthalamide fiber, which is made of a polycondensate of 4,4 '-diaminodiphenyl sulfone, 3,3' -diaminodiphenyl sulfone and terephthaloyl chloride. The aromatic polysulphone fiber introduces a p-benzene structure and a sulphone group during production, so that the amide group and the sulphone group are mutually connected with the p-phenyl group and the m-phenyl group to form a linear macromolecule. Because the sulfonyl group- (SO 2) -with strong electron-withdrawing property exists on the main chain of the macromolecule, the electron cloud density of the nitrogen atom on the amido group is obviously reduced through the double bond conjugation of the benzene ring and the conjugation system of the benzene ring, the composite material has outstanding heat resistance and flame resistance, and the long-term use temperature is 250 ℃. Experiments prove that the polysulfonamide fiber has good heat resistance, high-temperature dimensional stability, chemical resistance, moisture absorption and dyeing performance. Polysulfonamide fiber materials are mostly applied to the fields of protective products, high-temperature filter materials, friction sealing materials, electric insulating materials and the like.
The aramid 1313 fiber is also called as: the composite fiber is prepared by solution spinning after m-phenylenediamine and isophthaloyl chloride are condensed, and has the characteristics of good air permeability and moisture permeability, high temperature resistance, flame retardance and most corrosion resistance.
The polyaryl oxadiazole fiber is POD for short and has the English name: poly-1,3,4-oxadiazole is a high-temperature-resistant aromatic heterocyclic polymer material with good thermal stability, chemical stability, electrical insulation property and the like. Have low flame shrinkage and provide additional thermal stability to spun yarns, and polyaryloxadiazole fibers refer to fibers composed of polymers containing oxadiazole units. A process for making polyaryloxadiazole fibers may be found in U.S. Pat. No. 4202962, which is commercially available under the name of Polythron.
The flame-retardant viscose fiber has good flame-retardant effect and the characteristic of being similar to natural cotton fiber, and the material has the advantages of enhancing the comfort performance of clothes and also has good natural antistatic effect. At present, the austria lanjing company, China Jilin chemical fiber, Tangshansanyou chemical industry, Shandong sea dragon and the like all have the fiber production.
The flame-retardant viscose fiber is prepared by the following method: mixing a flame retardant with a viscose solution, and molding according to a conventional wet spinning and spinning process to obtain the flame-retardant viscose fiber;
the flame retardant accounts for 5-15% of the mass of the flame-retardant viscose fiber;
the flame retardant consists of the following components in parts by mass: 20-40 parts of N, N' -bis (diphenoxythiophosphoryl) dithiooxalamide; 20-40 parts of N-hydroxymethyl-3- (dimethoxyphosphono) propionamide; 30-50 parts of tri (2, 3-dibromopropyl) isocyanurate.
The viscose solution refers to a sodium hydroxide aqueous solution of cellulose sulfonate, which is a common intermediate raw material in the industry.
Preferably, in the viscose solution, the weight percentage content of the alpha fibers is 8-9%, the weight percentage content of the sodium hydroxide is 4-6%, the falling ball viscosity is 45-65 seconds, and the ripening degree is 8-16%.
The blended flame-retardant fabric can be prepared by mixing the components originally, preparing the mixed yarn by adopting a method common in the industry and weaving the mixed yarn by adopting a conventional method.
The blended flame retardant fabric includes, but is not limited to, a woven fabric or a knitted fabric. General fabric design and construction are well known to those skilled in the art.
The woven fabric refers to a fabric formed by interlacing yarns in a radial direction or a weft direction, generally on a weaving machine, and filling or interlacing the yarns with each other to form any fabric structure (such as a plain weave, a satin weave, a basket weave, a satin weave, a twill weave, and the like). With plain and twill weaves being the most commonly used weaves in commerce and preferred in many embodiments.
By knitted fabric is meant a fabric that is typically formed by interconnecting loops of yarn using needles. In many cases, to make a knitted fabric, staple fibers are fed into a knitting machine that converts the yarn into a fabric. If desired, multiple warp threads or yarns, plied or not plied, may be provided to the knitting machine; it is conventional to simultaneously load a bundle of yarns or a bundle of plied yarns into a knitting machine and knit into a fabric, or directly into an article of clothing.
The blended flame-retardant fabric has high flame-retardant performance, high moisture permeability, high air permeability and strong wear resistance.
Surprisingly, in the invention, the polyaryl oxadiazole fiber is further blended and added on the basis of the flame-retardant vinylon fiber and the high-temperature resistant fiber, so that the synergistic effect is achieved, and the flame retardant property and the wear resistance of the product are further improved.
The blended flame-retardant fabric can be added with flame-retardant viscose fibers, so that the wearability of the fabric can be effectively improved, and the fabric has soft handfeel and good wearability. Particularly, compared with the flame-retardant viscose fiber in the prior art, the flame-retardant effect of the blended flame-retardant fabric is more excellent by adopting the flame-retardant viscose fiber specially prepared by the invention.
The blended flame retardant fabrics of the present invention may be dyed using conventional dyes.
The blended flame-retardant fabric can be applied to protective clothing or other protective products, particularly protective clothing or other protective products for firefighters, emergency response personnel, racing personnel, military personnel, industrial production and other personnel, has excellent high-temperature resistance and wear resistance, can prolong the service life of the protective clothing or other protective products, and has high cost performance.
Detailed Description
The present invention will be further described with reference to the following examples.
In the following examples, the basic conditions of the respective raw materials are described below in Table 1.
Table 1: raw material table
| Name of raw materials | Concrete commodity | Oxygen index, LOI value |
| Flame-retardant vinylon fiber | CY841 fibers (China petrochemical group Sichuan vinylon factory offer) | 31.4 |
| High temperature resistant fiber | PSA fiber (available from Shanghai Terlon fiber Co., Ltd., trade name: TANLON) | 33 |
| High temperature resistant fiber | Aramid 1313 fiber (available from DuPont, USA, trade name: Nomex) | 29.3 |
| Polyaryl oxadiazole fibers | POD fiber (product name: Baodelon, available from Jiangsu Baode New Material Co., Ltd.) | 30.5 |
Example 1
Weighing the raw materials according to the data of table 2 corresponding to the data of the embodiment 1, uniformly mixing, performing opening pretreatment, and carding on a carding machine to form raw strips; then drawing on a drawing frame to form cooked strips; drafting and twisting on a roving frame, and finally further drafting and twisting on a spinning frame to prepare the blended yarn, wherein the linear density of the yarn is 39 tex. And weaving the blended yarn by a circular knitting machine weft knitting method, wherein the weft knitting rib weave has the total density of (100 wales multiplied by 60 courses)/5 cm, and finally obtaining the blended flame-retardant fabric.
Table 2: the fabric raw material comprises the following components by weight: kilogram (kilogram)
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | |
| CY841 fiber | 25 | 25 | 25 | 25 | 25 | 25 |
| PSA fiber | 25 | 25 | 25 | / | / | / |
| Aramid 1313 fiber | / | / | / | 25 | 25 | 25 |
| POD fiber | / | 15 | 15 | 15 | 15 | / |
| Flame-retardant viscose fiber | / | / | 30 | / | 30 | / |
Example 2
The raw materials were weighed according to the data in table 2 corresponding to example 2, and blended flame retardant fabric was prepared by the method described in example 1.
Example 3
The raw materials were weighed according to the data in table 2 corresponding to example 3, and blended flame retardant fabric was prepared by the method described in example 1. Wherein the raw material flame-retardant viscose fiber is selected from an Avena flame-retardant fiber provided by Shandong sea dragon GmbH, trade name: anti-fcell, oxygen index, LOI value 31.2.
Example 4
The raw materials were weighed according to the data in table 2 corresponding to example 4, and blended flame retardant fabric was prepared by the method described in example 1.
Example 5
The components were weighed according to the data in table 2 of example 5 and blended flame retardant fabric was prepared as described in example 1. Wherein the raw material flame-retardant viscose fiber is selected from an Avena flame-retardant fiber provided by Shandong sea dragon GmbH, trade name: anti-fcell, oxygen index, LOI value 31.2.
Example 6
The raw materials were weighed according to the data in table 2 corresponding to example 6, and blended flame retardant fabric was prepared by the method described in example 1.
Example 7
Weighing 30 kg of N, N' -bis (diphenoxythiophosphoryl) dithiooxalamide; 30 kg of N-hydroxymethyl-3- (dimethoxyphosphono) propionamide; and (3) stirring and mixing 40 kg of tris (2, 3-dibromopropyl) isocyanurate uniformly to obtain the composite flame retardant.
And mixing the composite flame retardant with the viscose solution, and molding by a conventional wet spinning and spinning process to obtain the flame-retardant viscose fiber, wherein the length of the flame-retardant viscose fiber is 38 mm. Wherein, the content of the flame retardant in the finished flame-retardant viscose fiber is controlled to be 10 wt%.
The viscose solution in the raw materials comprises 8.5 percent of alpha-cellulose by weight, 5 percent of sodium hydroxide by weight, 50 seconds of falling ball viscosity and 12 percent of ripening degree.
The flame retardant viscose fiber was found to have an oxygen index LOI value of 32.4%.
Weighing 25 parts by weight of CY841 fibers, 25 parts by weight of PSA fibers, 15 parts by weight of POD fibers and 30 parts by weight of the prepared flame-retardant viscose fibers, uniformly mixing, performing opening pretreatment, and carding on a carding machine to form raw strips; then drawing on a drawing frame to form cooked strips; drafting and twisting on a roving frame, and finally further drafting and twisting on a spinning frame to prepare the blended yarn, wherein the linear density of the yarn is 39 tex. And weaving the blended yarn by a circular knitting machine weft knitting method, wherein the weft knitting rib weave has the total density of (100 wales multiplied by 60 courses)/5 cm, and finally obtaining the blended flame-retardant fabric.
Example 8
And mixing the N, N' -bis (diphenoxy thiophosphoryl) dithiooxalamide with the viscose solution, and molding by a conventional wet spinning and spinning process to obtain the flame-retardant viscose fiber, wherein the length of the flame-retardant viscose fiber is 38 mm. Wherein, the content of the flame retardant in the finished flame-retardant viscose fiber is controlled to be 10 wt%.
The viscose solution in the raw materials comprises 8.5 percent of alpha-cellulose by weight, 5 percent of sodium hydroxide by weight, 50 seconds of falling ball viscosity and 12 percent of ripening degree.
The flame retardant viscose fiber was found to have an oxygen index LOI value of 31.4%.
Weighing 25 parts by weight of CY841 fibers, 25 parts by weight of PSA fibers, 15 parts by weight of POD fibers and 30 parts by weight of the prepared flame-retardant viscose fibers, uniformly mixing, performing opening pretreatment, and carding on a carding machine to form raw strips; then drawing on a drawing frame to form cooked strips; drafting and twisting on a roving frame, and finally further drafting and twisting on a spinning frame to prepare the blended yarn, wherein the linear density of the yarn is 39 tex. And weaving the blended yarn by a circular knitting machine weft knitting method, wherein the weft knitting rib weave has the total density of (100 wales multiplied by 60 courses)/5 cm, and finally obtaining the blended flame-retardant fabric.
Example 9
And mixing the N-hydroxymethyl-3- (dimethoxylphosphonyl) propionamide with the viscose solution, and molding by a conventional wet spinning and spinning process to obtain the flame-retardant viscose fiber, wherein the length of the flame-retardant viscose fiber is 38 mm. Wherein, the content of the flame retardant in the finished flame-retardant viscose fiber is controlled to be 10 wt%.
The viscose solution in the raw materials comprises 8.5 percent of alpha-cellulose by weight, 5 percent of sodium hydroxide by weight, 50 seconds of falling ball viscosity and 12 percent of ripening degree.
The flame retardant viscose fiber was found to have an oxygen index LOI value of 31.2%.
Weighing 25 parts by weight of CY841 fibers, 25 parts by weight of PSA fibers, 15 parts by weight of POD fibers and 30 parts by weight of the prepared flame-retardant viscose fibers, uniformly mixing, performing opening pretreatment, and carding on a carding machine to form raw strips; then drawing on a drawing frame to form cooked strips; drafting and twisting on a roving frame, and finally further drafting and twisting on a spinning frame to prepare the blended yarn, wherein the linear density of the yarn is 39 tex. And weaving the blended yarn by a circular knitting machine weft knitting method, wherein the weft knitting rib weave has the total density of (100 wales multiplied by 60 courses)/5 cm, and finally obtaining the blended flame-retardant fabric.
Example 10
Mixing the tri (2, 3-dibromopropyl) isocyanurate with the viscose solution, and molding by a conventional wet spinning and spinning process to obtain the flame-retardant viscose fiber, wherein the length of the flame-retardant viscose fiber is 38 mm. Wherein, the content of the flame retardant in the finished flame-retardant viscose fiber is controlled to be 10 wt%.
The viscose solution in the raw materials comprises 8.5 percent of alpha-cellulose by weight, 5 percent of sodium hydroxide by weight, 50 seconds of falling ball viscosity and 12 percent of ripening degree.
The flame retardant viscose fiber was measured to have an oxygen index LOI value of 30.8%.
Weighing 25 parts by weight of CY841 fibers, 25 parts by weight of PSA fibers, 15 parts by weight of POD fibers and 30 parts by weight of the prepared flame-retardant viscose fibers, uniformly mixing, performing opening pretreatment, and carding on a carding machine to form raw strips; then drawing on a drawing frame to form cooked strips; drafting and twisting on a roving frame, and finally further drafting and twisting on a spinning frame to prepare the blended yarn, wherein the linear density of the yarn is 39 tex. And weaving the blended yarn by a circular knitting machine weft knitting method, wherein the weft knitting rib weave has the total density of (100 wales multiplied by 60 courses)/5 cm, and finally obtaining the blended flame-retardant fabric.
Test example
The fabrics obtained from examples 1-10 were individually tested for performance.
Table 3: fabric performance test meter
In the embodiment 1 of the invention, the flame-retardant vinylon fiber and the high-temperature-resistant fiber PSA fiber are blended, so that the prepared fabric has high flame retardant property and the LOI (oxygen index) value of 32.2%. In the embodiment 2 of the invention, the polyaryl oxadiazole fiber (oxygen index LOI value is 30.5%) is further blended and added on the basis of the embodiment 1, the prepared fabric has the oxygen index LOI value of 32.6%, which is higher than the oxygen index LOI value and the polyaryl oxadiazole fiber of the embodiment 1, so that the three fibers are synergistic, and the flame retardant property, the wear resistance, the air permeability and the moisture permeability of the product are further improved.
It should be noted that the raw material compositions and the preparation methods of examples 7 to 10 are the same as those of example 3, and the only difference is that the flame-retardant viscose fibers are different.
Furthermore, the only difference between examples 7-10 is the difference in the flame retardant used in the preparation of the flame retardant viscose fiber. Examples 8-10 employ a single flame retardant, while example 7 employs a combination of the flame retardants used in examples 8-10.
According to the invention, the flame-retardant viscose fiber is subjected to flame-retardant finishing by a blending method, so that the prepared flame-retardant viscose fiber has better flame-retardant performance, and the prepared fabric has better flame-retardant effect after being blended with other fibers, and particularly, three flame retardants of N, N' -bis (diphenoxy thiophosphoryl) dithiooxalamide, N-hydroxymethyl-3- (dimethoxyphosphono) propionamide and tris (2, 3-dibromopropyl) isocyanurate are compounded for use, so that the flame-retardant effect is synergistic.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be made by those skilled in the art without inventive work within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (7)
1. The blended flame-retardant fabric is characterized by being woven by a conventional method after blending the following components in parts by weight:
10-40 parts of flame-retardant vinylon fibers;
10-40 parts of high-temperature resistant fiber.
2. The blended flame-retardant fabric is characterized by being woven by a conventional method after blending the following components in parts by weight:
10-40 parts of flame-retardant vinylon fibers;
10-40 parts of high-temperature resistant fiber;
10-20 parts of polyaryl oxadiazole fiber.
3. The blended flame-retardant fabric is characterized by being woven by a conventional method after blending the following components in parts by weight:
10-40 parts of flame-retardant vinylon fibers;
10-40 parts of high-temperature resistant fiber;
10-20 parts of polyaryl oxadiazole fiber;
20-40 parts of flame-retardant viscose fibers.
4. The blended flame retardant fabric of any of claims 1-3, wherein: the high-temperature resistant fiber is one or a mixture of polysulfonamide fiber and aramid 1313 fiber.
5. The blended flame retardant fabric of claim 3, wherein the flame retardant viscose fiber is prepared by the following method: mixing the flame retardant with the viscose solution, and forming according to a conventional wet spinning and spinning process;
the flame retardant accounts for 5-15% of the mass of the flame-retardant viscose fiber;
the flame retardant consists of the following components in parts by mass: 20-40 parts of N, N' -bis (diphenoxythiophosphoryl) dithiooxalamide; 20-40 parts of N-hydroxymethyl-3- (dimethoxyphosphono) propionamide; 30-50 parts of tri (2, 3-dibromopropyl) isocyanurate.
6. The blended flame retardant fabric of claim 5, wherein the viscose solution comprises 8-9% by weight of methyl cellulose, 4-6% by weight of sodium hydroxide, 45-65 seconds of falling ball viscosity and 8-16% of ripening.
7. A flame retardant protective garment, comprising: the flame-retardant protective clothing is made of the blended flame-retardant fabric of any one of claims 1 to 6.
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| CN104611804A (en) * | 2015-02-13 | 2015-05-13 | 上海特安纶纤维有限公司 | Yarn and fabric made by sulfonyl-containing aromatic polymer fibers and high-temperature-resistant flame-retardant fibers and preparation methods |
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| 侯林，刘永杰，张再兴，王进美，李永兰: "聚噁二唑纤维阻燃维纶纤维混纺纱的性能分析", 《棉纺织技术》 * |
| 邵秋娟，孙卫国: "芳纶/维纶/粘胶混纺比对织物力学与阻燃性能的影响", 《纺织科技进展》 * |
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| CN103556268B (en) * | 2013-10-31 | 2015-10-28 | 宜宾海丝特纤维有限责任公司 | A kind of flame-retardant bamboo charcoal viscose fiber and preparation method thereof |
| CN104801112A (en) * | 2014-01-26 | 2015-07-29 | 上海特安纶纤维有限公司 | High temperature-resistant polyaryloxadiazole nonwoven filter material and preparation method thereof |
| CN104611804A (en) * | 2015-02-13 | 2015-05-13 | 上海特安纶纤维有限公司 | Yarn and fabric made by sulfonyl-containing aromatic polymer fibers and high-temperature-resistant flame-retardant fibers and preparation methods |
| CN104630960A (en) * | 2015-02-13 | 2015-05-20 | 上海特安纶纤维有限公司 | Yarn and fabric made of polyphenylene sulfide fibers and aromatic polymer fibers containing sulphone and production method of yarn and fabric |
| CN104957811A (en) * | 2015-06-06 | 2015-10-07 | 朱卫东 | Electricity-proof and flame-retardant shell fabric |
| CN107557966A (en) * | 2017-10-17 | 2018-01-09 | 蓝星（成都）新材料有限公司 | A kind of composite flame-proof material and preparation method |
| CN109648960A (en) * | 2018-12-14 | 2019-04-19 | 常熟市宝沣特种纤维有限公司 | The fire-retardant composite material of water pressure resistance and application |
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Application publication date: 20130911 |