CN219749123U - Flame-retardant wet-process non-woven fabric - Google Patents
Flame-retardant wet-process non-woven fabric Download PDFInfo
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- CN219749123U CN219749123U CN202320235669.3U CN202320235669U CN219749123U CN 219749123 U CN219749123 U CN 219749123U CN 202320235669 U CN202320235669 U CN 202320235669U CN 219749123 U CN219749123 U CN 219749123U
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- flame
- retardant
- wet
- layer
- fiber layer
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 239000003063 flame retardant Substances 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 71
- 239000004744 fabric Substances 0.000 claims abstract description 23
- 239000004642 Polyimide Substances 0.000 claims description 7
- 229920001721 polyimide Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 229920000728 polyester Polymers 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229920000297 Rayon Polymers 0.000 claims description 4
- 239000002759 woven fabric Substances 0.000 abstract description 3
- 241000381602 Vachellia nebrownii Species 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012982 microporous membrane Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The utility model discloses a flame-retardant wet-process non-woven fabric, which comprises a first wet-process fiber layer, a flame-retardant fabric layer and a second wet-process fiber layer which are compounded by water thorns; the first wet fiber layer and the second wet fiber layer are made of flame-retardant short fibers; the flame-retardant fabric layer is formed by interweaving flame-retardant filaments serving as warp yarns and weft yarns, and the interval between the flame-retardant filaments is 1-2mm. The flame-retardant wet-process non-woven fabric comprises two moisture-absorbing fiber layers formed by flame-retardant fibers and the shuttle-woven fabric which is arranged between the two moisture-absorbing fiber layers and is formed by interweaving flame-retardant filaments, so that the strength of the whole flame-retardant wet-process non-woven fabric in two directions of CD and MD can be effectively improved, and the application range of the whole flame-retardant wet-process non-woven fabric is improved.
Description
Technical Field
The utility model relates to the technical field of wet non-woven fabrics, in particular to a flame-retardant wet non-woven fabric.
Background
The wet nonwoven fabric is obtained by dewatering water and fiber in a special former to obtain fiber net, and fixing the net by physical and chemical methods. The wet nonwoven has the characteristics of random arrangement of fibers, good uniformity, less limitation of fiber varieties, high production speed and the like. The wet flame-retardant non-woven fabric is prepared from flame-retardant fibers by a wet non-woven fabric production technology, but the conventional moisture-absorption flame-retardant non-woven fabric has the defects in terms of physical and mechanical strength such as strength, and how to increase the strength of the moisture-absorption non-woven fabric on the premise of not reducing the flame-retardant effect becomes a problem to be solved.
Disclosure of Invention
The utility model aims to provide a flame-retardant wet-process non-woven fabric, wherein a layer of woven fabric formed by interweaving flame-retardant filaments is arranged between two flame-retardant wet-process fiber layers, so that the strength of the whole non-woven fabric in two directions of CD and MD can be effectively improved.
In order to solve the technical problems, the aim of the utility model is realized as follows:
the utility model relates to a flame-retardant wet-process non-woven fabric which comprises a first wet-process fiber layer, a flame-retardant fabric layer and a second wet-process fiber layer which are compounded by water needling;
the first wet fiber layer and the second wet fiber layer are made of flame-retardant short fibers; the flame-retardant fabric layer is formed by interweaving flame-retardant filaments serving as warp yarns and weft yarns, and the interval between the flame-retardant filaments is 1-2mm.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the flame-retardant short fibers are flame-retardant viscose fibers or flame-retardant polyester fibers.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the flame-retardant filament is polyimide filament or flame-retardant polyester filament.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: a first flame-retardant film is compounded on one side of the first wet-process fiber layer far away from the flame-retardant fabric layer; and a second flame-retardant film is compounded on two sides of the second wet-process fiber layer far away from the flame-retardant fabric layer.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the first flame-retardant film and the second flame-retardant film are polyimide casting films or PTFE microporous films.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: glass fiber layers are arranged between the first wet fiber layer and the flame-retardant fabric layer and between the second wet fiber layer and the flame-retardant fabric layer.
The beneficial effects of the utility model are as follows: the flame-retardant wet-process non-woven fabric comprises two moisture-absorbing fiber layers formed by flame-retardant fibers and the shuttle-woven fabric which is arranged between the two moisture-absorbing fiber layers and is formed by interweaving flame-retardant filaments, so that the strength of the whole flame-retardant wet-process non-woven fabric in two directions of CD and MD can be effectively improved, and the application range of the whole flame-retardant wet-process non-woven fabric is improved.
Drawings
FIG. 1 is a schematic view of a flame retardant wet nonwoven fabric according to an embodiment;
fig. 2 is a schematic structural diagram of a flame retardant wet nonwoven fabric according to a second embodiment;
fig. 3 is a schematic structural diagram of a flame retardant wet nonwoven fabric according to example three.
The labels in the figures are illustrated below: 1-a first wet fiber layer; 2-a flame retardant facestock layer; 3-a second wet fiber layer; 4-a first flame retardant film; 5-a second flame retardant film; 6-glass fiber layer.
Detailed Description
The utility model will be further described with reference to the drawings and specific examples.
The first embodiment comprises a first wet fiber layer 1, a flame retardant fabric layer 2 and a second wet fiber layer 3 which are compounded through water needling.
The first wet fiber layer 1 and the second wet fiber layer 3 are fiber webs formed by wet-laid short fibers. Wet-laid is a process in which fibers are laid in an aqueous solution, a large amount of water is added before the web is laid and made into a uniformly dispersed fiber suspension, and then a large amount of dehydration is carried out in the process of making the web, namely, the process of dehydration and deposition of the fiber suspension on a former is carried out, and the formed fiber web is subjected to physical or chemical treatment or post-processing to obtain a nonwoven material. The first wet fiber layer 1 and the second wet fiber layer 3 are made of flame-retardant short fibers, namely, the flame-retardant short fibers are formed into a fiber suspension, and then a fiber web is formed on a former.
The flame-retardant fabric layer 2 is formed by interweaving flame-retardant filaments serving as warp yarns and weft yarns, and the interval between the flame-retardant filaments is 1-2mm. In this example, the spacing between flame retardant filaments in the same system was 1.5mm on average for both warp and weft flame retardant filaments.
The first wet fiber net 1, the flame retardant fabric layer 2 and the second wet fiber net 3 are sequentially stacked and then subjected to spunlacing reinforcement, three layers are compounded together, and as a certain gap is reserved among flame retardant filaments in the flame retardant fabric layer 2, fibers of the first wet fiber net 1 and the second wet fiber net 3 can pass through the flame retardant fabric layer 2 at the gap in the spunlacing reinforcement process, and therefore layering is not easy to occur.
Further, the flame-retardant short fibers are flame-retardant viscose fibers or flame-retardant polyester fibers. In this example, flame retardant viscose was chosen, with a length of 30mm.
Further, the flame-retardant filaments are polyimide filaments or flame-retardant polyester filaments, and in the embodiment, polyimide filaments are selected, and the fineness is 100D.
Example two
This embodiment will be described in detail with reference to fig. 2. The difference between the flame-retardant wet nonwoven fabric according to the present embodiment and the first embodiment is that: a first flame-retardant film 4 is compounded on one side, far away from the flame-retardant fabric layer 2, of the first wet-process fiber layer 1; and a second flame-retardant film 5 is compounded on the two sides of the second wet-process fiber layer 3 far away from the flame-retardant fabric layer 2.
Further, the first flame retardant film 4 and the second flame retardant film 5 are polyimide cast films or PTFE microporous films. In this example, a PTFE microporous membrane was selected, and the average pore diameter of the PTFE microporous membrane used was 0.1 to 10. Mu.m, and the thickness was 1 to 200. Mu.m. PTFE has good flame retardant property and has a micro-porous structure, so that the PTFE has good waterproof and breathable effects.
Example III
This embodiment will be described in detail with reference to fig. 3. The difference between the flame-retardant wet nonwoven fabric according to the present embodiment and the second embodiment is that: glass fiber layers 6 are arranged between the first wet fiber layer 1 and the flame-retardant fabric layer 2 and between the second wet fiber layer 3 and the flame-retardant fabric layer 2. The glass fiber layer 6 may further increase the flame retardant properties of the wet laid nonwoven fabric.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (6)
1. The flame-retardant wet-process non-woven fabric is characterized by comprising a first wet-process fiber layer (1), a flame-retardant fabric layer (2) and a second wet-process fiber layer (3) which are compounded by water needling;
the first wet fiber layer (1) and the second wet fiber layer (3) are made of flame-retardant short fibers; the flame-retardant fabric layer (2) is formed by interweaving flame-retardant filaments serving as warp yarns and weft yarns, and the interval between the flame-retardant filaments is 1-2mm.
2. The flame-retardant wet-process non-woven fabric according to claim 1, wherein the flame-retardant short fibers are flame-retardant viscose fibers or flame-retardant polyester fibers.
3. The flame retardant wet laid nonwoven fabric according to claim 1, wherein the flame retardant filaments are polyimide filaments or flame retardant polyester filaments.
4. The flame-retardant wet-process non-woven fabric according to claim 1, wherein a first flame-retardant film (4) is compounded on one side of the first wet-process fiber layer (1) far from the flame-retardant fabric layer (2); and a second flame-retardant film (5) is compounded on two sides of the second wet-process fiber layer (3) far away from the flame-retardant fabric layer (2).
5. The flame retardant wet nonwoven fabric according to claim 4, wherein the first flame retardant film (4) and the second flame retardant film (5) are polyimide cast films or PTFE microporous films.
6. A flame retardant wet laid nonwoven fabric according to claim 1, characterized in that glass fiber layers (6) are arranged between the first wet laid fiber layer (1) and the flame retardant fabric layer (2) and between the second wet laid fiber layer (3) and the flame retardant fabric layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320235669.3U CN219749123U (en) | 2023-02-10 | 2023-02-10 | Flame-retardant wet-process non-woven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320235669.3U CN219749123U (en) | 2023-02-10 | 2023-02-10 | Flame-retardant wet-process non-woven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219749123U true CN219749123U (en) | 2023-09-26 |
Family
ID=88071741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320235669.3U Active CN219749123U (en) | 2023-02-10 | 2023-02-10 | Flame-retardant wet-process non-woven fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219749123U (en) |
-
2023
- 2023-02-10 CN CN202320235669.3U patent/CN219749123U/en active Active
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