KR20160000193A - Flame retardant Fabric and method for manufacturing thereof - Google Patents
Flame retardant Fabric and method for manufacturing thereof Download PDFInfo
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- KR20160000193A KR20160000193A KR1020140077239A KR20140077239A KR20160000193A KR 20160000193 A KR20160000193 A KR 20160000193A KR 1020140077239 A KR1020140077239 A KR 1020140077239A KR 20140077239 A KR20140077239 A KR 20140077239A KR 20160000193 A KR20160000193 A KR 20160000193A
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Abstract
FIELD OF THE INVENTION The present invention relates to a flame retarded nonwoven fabric, and more particularly, to a polyester flame retardant fiber and a low flame retardant fiber combined with a low melting fiber.
A method for manufacturing a flame retardant nonwoven fabric according to the present invention comprises the steps of: a first step of producing a polyester flame retardant fiber; a second step of producing a natural flame retardant fiber by adding a phosphorus flame retardant; A third step of mixing the polyester flame retarded fiber produced in the first and second steps with the natural flame retardant fiber to produce a fiber mixture; A fourth step of dispersing the fiber mixture prepared in the third step through a carding line; And a fifth step of adding a low melting fiber to the mixture dispersed in the fourth step.
The flame retardant nonwoven fabric according to the present invention provides a polyester flame retardant fiber and a natural cotton fiber with a flame retardant function and then mixes the two together at an appropriate ratio to produce a nonwoven fabric. Even if exposed to fire for a long time, It is possible to prevent the secondary image, and it is also possible to manufacture it as a recycled material, so that it has an excellent flame retarding function and is excellent in price competitiveness.
Description
The present invention relates to a flame retardant nonwoven fabric, and more particularly, to a flame retardant functional nonwoven fabric capable of preventing melt development and dripping phenomenon, and a method for producing the same.
The industrial environment of our country has been used as a method to protect our valuable people and property in the event of a fire due to political and environmental disasters and to add flame retardant function to almost all industries by coating or coating method.
In particular, the flame retardant function has become essential in various plastics industries, and the flame retardant function is given to all industries such as IT, automobile, and construction as original and auxiliary materials.
However, even if the plastic does not have a flame retardant function, dripping phenomenon occurs when it is exposed to fire, and it melts quickly and falls down. That is, a synthetic fiber nonwoven fabric used as an interior material or the like is melted down when a fire is generated and exposed to fire.
This means that it can not be used as an industrial function product, and melted melts cause secondary burns. Recognizing this problem, developed countries have led the market by developing aramid fibers and carbon fibers.
However, since these functional fibers are formed at a very high price, they can not be easily used in the general nonwoven fabric market. Therefore, it is urgent to develop a nonwoven fabric having a flame retarding function capable of solving the above-mentioned economic and functional problems.
[Prior Art Literature]
Korean Patent Publication No. 2011-546227
Korean Registered Patent No. 10-84423
In order to solve the above problems, the present inventors have repeatedly studied, and as a result, they have provided a flame retardant function to a polyester fiber and a natural cotton fiber, and then produced a nonwoven fabric by mixing them at an appropriate ratio, And a heat-resistant function at the same time, so that a melting phenomenon and a dripping phenomenon do not occur. Thus, the present invention has been accomplished.
In addition, the polyester flame retardant fiber can be manufactured as a recycled raw material, thereby contributing to prevention of environmental pollution, and the method of imparting flame retardancy to a natural cotton fiber can also be manufactured through a simple processing, thereby significantly reducing the production cost.
Accordingly, an object of the present invention is to provide a flame-retardant nonwoven fabric having excellent flame-retardant function and being maintained in shape even after being exposed to fire for a long time and having a heat-resistant function at the same time to prevent melting phenomenon and dripping phenomenon, and a method for producing the same.
Another object of the present invention is to provide a flame retardant nonwoven fabric having an excellent flame retarding function and excellent price competitiveness, and a method for producing the same.
SUMMARY OF THE INVENTION The present invention provides a flame retardant nonwoven fabric comprising a polyester flame retardant fiber and a low melting fiber combined with a natural flame retardant fiber.
It is preferable that the polyester flame retarded fiber is mixed with 10 to 70 parts by weight and the natural flame retardant fiber is mixed with 70 to 10 parts by weight.
10 to 40 parts by weight of the Low Melting fiber is preferably added.
The polyester flame retardant fiber may be flame retarded with a phosphorus-containing flame retardant or a liquid phosphorus flame retardant melted at 50 to 250 ° C.
The polyester flame retardant fiber may be flame retarded with a cyclic-organo-phophrous compound or a cyclic phosphate waster.
The natural surface flame retardant fiber can be flame retarded with a flame retardant in liquid form having a phosphorus content of 28% or more.
The Low Melting fiber may be a low melting polyester fiber.
The present invention also provides a method for producing a polyester flame retardant fiber, A second step of adding a phosphorus flame retardant to produce a natural flame retardant fiber; A third step of mixing the polyester flame retardant fiber produced in the first and second steps with the natural flame retardant fiber; A fourth step of preparing a mixture by adding a low melting fiber; And a fifth step of dispersing and heat-treating the mixture prepared in the fourth step through a carding line.
It is preferable that 10 to 70 parts by weight of the polyester flame retardant fiber and 70 to 10 parts by weight of the natural flame retardant fiber are mixed.
The natural surface-flame-retarded fiber produced in the second step may further include an immersion, a dehydration, and a drying step.
The Low Melting fiber is preferably added in an amount of 10 to 40 parts by weight based on the weight of the mixture of the polyester flame retardant fiber and the cotton fiber.
The Low Melting fiber may be a low melting polyester fiber.
The polyester flame retardant fiber is produced by mixing 10 to 80 parts by weight of a polyester powder and 90 to 20 parts by weight of a polyester resin to prepare a mixture. The flame retardant containing phosphorus, which is melted at 50 to 250 ° C., 6 parts by weight, and kneading and then spinning.
The polyester flame retardant fiber is prepared by mixing 10 to 80 parts by weight of a polyester powder and 90 to 20 parts by weight of a polyester resin to prepare a mixture, adding 1 to 6 parts by weight of a phosphorus-containing flame retardant to the total weight of the mixture Preparing a mixture, coating the mixture on a polyester resin, drying and then spinning the mixture.
The polyester resin is a polyester resin having a viscosity of 0.55 Dl / g or more, and the polyester powder may be obtained by cooling the polyester resin and pulverized to a particle size range of 35 to 150 mesh.
Wherein the natural surface-flame retardant fiber comprises a mixture of water and a cotton fiber flame retardant in a liquid phase having a phosphorus content of 28% or more and water to prepare a mixture, a step of adding the mixture and the natural cotton fiber into a padding bath, Step < / RTI >
Preferably, 95 to 10 parts by weight of water, 100 to 5 parts by weight of a flame retardant and 0.1 part by weight of the penetrating agent are mixed with the natural surface-flame retardant fiber.
The guanidine phosphate may be used as the flame retardant of the liquid phase fiber.
The mixture and the natural cotton fibers are preferably mixed in a weight ratio of 1: 1.
The present invention also provides a flame-retardant nonwoven fabric produced by the flame retardant nonwoven fabric.
The flame retardant nonwoven fabric according to the present invention provides a polyester flame retardant fiber and a natural cotton fiber with a flame retardant function and then mixes the two together at an appropriate ratio to produce a nonwoven fabric. Even if exposed to fire for a long time, The secondary image can be prevented.
In addition, it can be produced as a recycled raw material and has an excellent flame retardant function, and is excellent in price competitiveness.
Fig. 1 is a view showing the result of the test report evaluated in Test Example 1. Fig.
Hereinafter, the present invention will be described in detail. In the following description of the present invention, a detailed description of known configurations and functions will be omitted.
The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and should be construed in accordance with the technical meanings and concepts of the present invention.
The embodiments described in the present specification and the configurations shown in the drawings are preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention and thus various equivalents and modifications Can be.
The flame retardant nonwoven fabric composition according to the present invention may be a polyester flame retardant fiber, a natural flame retardant fiber, And Low Melting fiber.
A method for manufacturing a flame retardant functional and anti-drip nonwoven fabric according to the present invention will be described in detail. First, a polyester flame retardant fiber is produced.
At this time, the polyester resin selected for use in the present invention can be used without discrimination between virgin and recycled raw materials.
The polyester resin is a polyester resin having a viscosity of 0.55 Dl / g or more, and the polyester powder may be preferably used after cooling the polyester resin and pulverized to a particle size range of 35 to 150 mesh.
The polyester flame retardant fiber is preferably at least 28% of the limit oxygen index (LOI value:%) and the polyester flame retardant fiber is preferably a polyester-based flame retardant fiber, Can be produced.
In one embodiment of the present invention, in the case where the flame retardant used in the method for producing a polyester flame retardant fiber by direct spinning is a powder type, in order to evenly disperse the flame retardant into the polyester, 10 to 80% by weight of the powder is mixed, and the mixture is firstly dried under the above-mentioned drying conditions, then 1 to 6% by weight of a flame retardant is added thereto, kneaded, have.
In another embodiment of the present invention, in the case where the flame retardant used in the method for producing a polyester flame retardant fiber by direct spinning is a liquid type flame retardant having a viscosity, in order to uniformly disperse the flame retardant in the polyester, 10 to 80% by weight of a polyester powder having a particle size of 1 to 80% by weight is mixed with the mixture, and then the mixture is first dried under the above-mentioned drying conditions. Thereafter, a liquid type flame retardant is mixed with 1 to 6% An ester-retardant fiber can be produced. In this case, the liquid flame retardant may be preliminarily mixed with a mixture of a polyester powder type and a polyester resin before drying, coating the resin surface with the mixture, drying and then spinning to prepare a polyester flame retardant fiber.
Next, a phosphorus flame retardant is added, followed by immersion, dehydration and drying to produce a natural flame retarded fiber.
In order to prepare the natural surface-flame retardant fiber, a general cotton fiber is first prepared. The cotton used here may be a cotton cloth with the seed attached thereto or a cotton cloth washed away from the seed and the like. The cotton surface can be used because the seed is mostly removed in the carding process.
The natural surface-flame retardant fiber is prepared by mixing 100 to 5 parts by weight of a liquid phase flame-retardant agent having a phosphorus content of 28% or more in 95 to 10 parts by weight of water and 0.1 part by weight of a penetrating agent. After the well-mixed mixture is poured into a padding bath, the general cotton fiber is put into a bath and the cotton fiber flame retardant is sufficiently absorbed by the general cotton fiber by immersion.
The reason why the penetrating agent is added is that since a complex foreign substance is adsorbed on the surface of the raw cotton, the cotton fiber flame retardant does not penetrate well, and therefore, a single-component type solvent must be prepared by using a penetrating agent.
The natural surface flame retarded fiber sufficiently absorbed by the cotton fiber flame retardant is transferred to the centrifugal separating dewatering device to perform a proper time dehydrating operation. The dehydrated solvent can be recycled to the padding bath through the recovery device.
After the dewatering process is completed, the natural fiber flame-retarded fiber is transferred to a dry device such as a tumbling dryer and dried.
The mixture and the natural cotton fibers are preferably mixed in a weight ratio of 1: 1, but are not limited thereto. The content of the flame retardant and the pickup ratio can be increased or decreased depending on the degree of the necessary flame retarding function.
Also, the cotton fiber flame retardant may be guanidine phosphate, but is not limited thereto.
The polyester flame retardant fiber prepared above and the natural cotton flame retardant fiber are mixed. In this case, it is preferable that 10 to 70 parts by weight of the polyester flame retardant fiber and 70 to 10 parts by weight of the natural flame retardant fiber are mixed.
When the polyester flame retardant fiber and the natural cotton flame retardant fiber are below the lower limit of the above range, cotton flour is blown off from the finished nonwoven fabric, which is not preferable in terms of hygiene. When the upper limit of the range is exceeded, The effect to be achieved is not obtained.
Next, a mixture is prepared by adding Low Melting fiber, and finally, the mixture is dispersed via a carding line and heat treated. It is possible to remove seeds and impurities remaining on the surface through the carding line, and the mixture can be evenly mixed.
The low melting fiber fixes the fibers and fibers of the polyester flame retardant fiber and the natural cotton flame retardant fiber to each other to maintain the shape. The Low Melting fiber may be a low melting point polyester fiber, preferably 10 to 40 parts by weight. However, the present invention is not limited to this, and it is possible to add and subtract according to the degree of the anti-dripping function.
Specifically, a low melting fiber is added to the mixture dispersed in the carding line, and the mixture is compressed while being heat-treated. The low melting fiber can be obtained by applying a pressure to a process of bonding and bonding the fibers melted by heat and uniformly dispersed and bonding the nonwoven fabric having a desired thickness and strength.
The flame retardant nonwoven fabric manufactured according to the present invention can maintain its shape and prevent dripping even when exposed to fire for a long time, and can be used as a flame retardant material having excellent heat-resistance functions such as bed mattresses, furniture such as sofas, automobiles, .
Hereinafter, the present invention will be described in more detail with reference to Examples. It is to be understood by those skilled in the art that these embodiments are only for describing the present invention in more detail and that the scope of the present invention is not limited by these embodiments in accordance with the gist of the present invention .
Example 1 : Direct radiation polyester Of flame retardant fiber Produce
2% by weight of a liquid flame retardant having a predetermined viscosity was added to 98% by weight of a recycled polyester resin, Pet-Flake, through a friction drier, followed by drying under the above-mentioned conditions while being coated and then a general polyester staple fiber was produced under the production conditions The resultant product was irradiated and the flame retardancy was measured. It was confirmed that the LOI value was 40% or more.
According to this embodiment, the flame retarding function of the flame retardant fiber obtained by compounding or direct spinning is superior to that of the yarn obtained by using the master batch. Therefore, if the flame-retarded fiber is obtained through the spinning operation with the above-mentioned preparation according to the conditions of the equipment, if it is a condition capable of direct spinning rather than obtaining the flame-retardant fiber after the master batch or compound is manufactured, , Direct radiation is more advantageous.
Test Example 1: Nonwoven fabric fire resistance test
A UL 94V (Vertical Burning Test) was performed by placing the nonwoven fabric specimen vertically and measuring it by lighting. The detailed test results are shown in Fig. Referring to FIG. 1, when the nonwoven fabric was lighted, the drop phenomenon did not occur, and it was confirmed that the flame retarding function was improved because the shape was maintained.
As described above, preferred embodiments of the present invention have been disclosed in the present specification and drawings, and although specific terms have been used, they have been used only in a general sense to easily describe the technical contents of the present invention and to facilitate understanding of the invention , And are not intended to limit the scope of the present invention.
It is to be understood by those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.
Claims (19)
10 to 70 parts by weight of the polyester flame retardant fiber, 70 to 10 parts by weight of the natural flame retardant fiber, and 10 to 40 parts by weight of the low melting fiber are combined.
Wherein the polyester flame retardant fiber is flame retarded with a phosphorus-containing flame retardant or a liquid phosphorus flame retardant melted at 50 to 250 ° C.
Wherein the polyester flame retardant fiber is subjected to flame-retardant treatment with a cyclic-organo-phophrous compound or a cyclic phosphate waster.
Wherein the natural surface-flame retardant fiber is flame-retarded with a liquid flame retardant having a phosphorus content of 28% or more.
Wherein the Low Melting fiber is a low melting point polyester fiber.
A second step of adding a phosphorus flame retardant to produce a natural flame retardant fiber;
A third step of mixing the polyester flame retarded fiber produced in the first and second steps with the natural flame retardant fiber to produce a fiber mixture;
A fourth step of dispersing the fiber mixture prepared in the third step through a carding line; And a fifth step of adding a low melting fiber to the mixture dispersed in the fourth step.
Wherein the natural surface-flame-retardant fiber produced in the second step is further prepared by dipping, dehydrating and drying.
Wherein the polyester flame retardant fiber is 10 to 70 parts by weight, the natural flame retardant fiber is 70 to 10 parts by weight, and the low melting fiber is 10 to 40 parts by weight.
Wherein the Low Melting fiber is a low melting point polyester fiber.
The polyester flame retardant fiber is prepared by mixing 10 to 80 parts by weight of a polyester powder and 90 to 20 parts by weight of a polyester resin to prepare a mixture. The flame retardant containing phosphorus, which is melted at 50 to 250 ° C., And 6 parts by weight of an inorganic filler are added, kneaded and then spun.
The polyester flame retardant fiber is prepared by mixing 10 to 80 parts by weight of a polyester powder and 90 to 20 parts by weight of a polyester resin to prepare a mixture, adding 1 to 6 parts by weight of a phosphorus-containing flame retardant to the total weight of the mixture Wherein the mixture is prepared by coating the polyester resin with the mixture, drying the mixture, and then spinning the mixture.
Wherein the polyester resin is a polyester resin having a viscosity of 0.55 Dl / g or more, and the polyester powder is obtained by cooling the polyester resin to a particle size range of 35 to 150 mesh.
The natural surface-
Preparing a mixture by mixing the liquid fiber foam flame retardant and the penetrating agent having a phosphorus content of 28% or more in water to prepare a mixture, adding the mixture and the natural cotton fiber into a padding bath, and dewatering Wherein the flame retardant is a polyester resin.
95 to 10 parts by weight of the water, 100 to 5 parts by weight of the cotton fiber flame retardant, and 0.1 part by weight of the penetrating agent are mixed.
Wherein the cotton fiber flame retardant is guanidine phosphate.
Wherein the penetrating agent is an Alkyl phosphate based resin.
Wherein the mixture and the natural cotton fibers are mixed in a weight ratio of 1: 1.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020140077239A KR101602701B1 (en) | 2014-06-24 | 2014-06-24 | Flame retardant Fabric and method for manufacturing thereof |
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| KR1020140077239A KR101602701B1 (en) | 2014-06-24 | 2014-06-24 | Flame retardant Fabric and method for manufacturing thereof |
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| KR101602701B1 KR101602701B1 (en) | 2016-03-11 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101980312B1 (en) * | 2018-03-19 | 2019-05-20 | 김동길 | flame-retardant nonwoven fabric for mattress and manufacturing method thereof |
| KR20210127578A (en) | 2020-04-14 | 2021-10-22 | 김인규 | Flame-retardant non-woven fabric and preparation method thereof |
| KR20210147618A (en) | 2020-05-29 | 2021-12-07 | 김인규 | Flame-retardant non-woven fabric and preparation method thereof |
| KR20230042808A (en) | 2021-09-23 | 2023-03-30 | 고현석 | Flame-retardant non-woven fabric and preparation method thereof |
| KR20230043583A (en) | 2021-09-24 | 2023-03-31 | 김채현 | Flame-retardant non-woven fabric and preparation method thereof |
| KR20230043592A (en) | 2021-09-24 | 2023-03-31 | 김채현 | Flame-retardant non-woven fabric and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102213847B1 (en) * | 2019-11-11 | 2021-02-09 | 주식회사 휴비스 | High Strength, High Flame Retardant Hybrid Fiber Materials Manufacturing Method |
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| KR800000093B1 (en) * | 1978-02-15 | 1980-01-30 | 이동찬 | Method for modifying polyester fiber |
| KR20110070320A (en) * | 2009-12-18 | 2011-06-24 | 이희대 | A filler for life goods, and method for manufacturing the same |
| KR101302974B1 (en) * | 2012-10-31 | 2013-09-02 | 김진규 | Method for manufacturing fire-retardant fabric and the fire-retardant fabric used manufacturing fire cloth |
| JP2014001467A (en) * | 2012-06-15 | 2014-01-09 | Teijin Ltd | Method for producing flame retardant polyester fiber |
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- 2014-06-24 KR KR1020140077239A patent/KR101602701B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR800000093B1 (en) * | 1978-02-15 | 1980-01-30 | 이동찬 | Method for modifying polyester fiber |
| KR20110070320A (en) * | 2009-12-18 | 2011-06-24 | 이희대 | A filler for life goods, and method for manufacturing the same |
| JP2014001467A (en) * | 2012-06-15 | 2014-01-09 | Teijin Ltd | Method for producing flame retardant polyester fiber |
| KR101302974B1 (en) * | 2012-10-31 | 2013-09-02 | 김진규 | Method for manufacturing fire-retardant fabric and the fire-retardant fabric used manufacturing fire cloth |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101980312B1 (en) * | 2018-03-19 | 2019-05-20 | 김동길 | flame-retardant nonwoven fabric for mattress and manufacturing method thereof |
| KR20210127578A (en) | 2020-04-14 | 2021-10-22 | 김인규 | Flame-retardant non-woven fabric and preparation method thereof |
| KR20210147618A (en) | 2020-05-29 | 2021-12-07 | 김인규 | Flame-retardant non-woven fabric and preparation method thereof |
| KR20230042808A (en) | 2021-09-23 | 2023-03-30 | 고현석 | Flame-retardant non-woven fabric and preparation method thereof |
| KR20230043583A (en) | 2021-09-24 | 2023-03-31 | 김채현 | Flame-retardant non-woven fabric and preparation method thereof |
| KR20230043592A (en) | 2021-09-24 | 2023-03-31 | 김채현 | Flame-retardant non-woven fabric and preparation method thereof |
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| KR101602701B1 (en) | 2016-03-11 |
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