CN220099347U - Fluffy porous non-woven fabric, layered heat-insulating product and hygroscopic product - Google Patents
Fluffy porous non-woven fabric, layered heat-insulating product and hygroscopic product Download PDFInfo
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- CN220099347U CN220099347U CN202320818698.2U CN202320818698U CN220099347U CN 220099347 U CN220099347 U CN 220099347U CN 202320818698 U CN202320818698 U CN 202320818698U CN 220099347 U CN220099347 U CN 220099347U
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 66
- 239000000835 fiber Substances 0.000 claims abstract description 129
- 239000004744 fabric Substances 0.000 claims abstract description 16
- 230000002745 absorbent Effects 0.000 claims description 5
- 239000002250 absorbent Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 13
- 239000002344 surface layer Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 239000011258 core-shell material Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
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- 239000012943 hotmelt Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 229920000747 poly(lactic acid) Polymers 0.000 description 2
- 239000004626 polylactic acid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000433 Lyocell Polymers 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006376 polybenzimidazole fiber Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a fluffy porous non-woven fabric, which comprises: the punctiform fiber entanglement parts are non-woven fiber aggregates and are arranged in rows and columns at intervals; the strip-shaped fiber entanglement parts are nonwoven fiber assemblies and are connected between two adjacent punctiform fiber entanglement parts; the adjacent punctiform fiber tangles and the strip-shaped fiber tangles are enclosed in a closed pattern having a central through hole. The fluffy porous non-woven fabric cloth cover and the outer Zhou Shougan of the central through hole are fluffy and soft, and have good strength and dimensional stability and stable porous structure; is suitable for fabrics, layered heat-insulating products and layered hygroscopic products.
Description
Technical Field
The utility model relates to the technical field of non-woven fabrics, in particular to a fluffy porous non-woven fabric, a layered heat-insulating product and a hygroscopic product.
Background
Nonwoven fabrics are currently widely used in the fields of hygiene, cleaning and medical products. The hole of fretwork non-woven fabrics adopts die-cut to make among the prior art more, for example ultrasonic punching, and welding side cut in the ultrasonic cutting downthehole part of hole simultaneously can effectively avoid the in-process side cut fluffing, but die-cut hole edge sense of touch is coarse. Bulk nonwoven fabrics are often used in absorbent products and thermal products, and the bulk nonwoven fabrics have good strength and dimensional stability. Fluffy porous nonwoven fabrics are one of the directions of development in the nonwoven fabric field.
Disclosure of Invention
One of the purposes of the utility model is to overcome the defects in the prior art and provide a fluffy porous non-woven fabric, which has fluffy touch and is porous and has good dimensional stability.
In order to achieve the technical effects, the technical scheme of the utility model is as follows: a lofty porous nonwoven fabric, comprising:
the punctiform fiber entanglement parts are non-woven fiber aggregates and are arranged in rows and columns at intervals;
a strip-shaped fiber entanglement part which is a nonwoven fiber aggregate and is connected between two adjacent dot-shaped fiber entanglement parts;
the adjacent punctiform fiber entanglement parts and strip-shaped fiber entanglement parts are enclosed into a closed pattern with a central through hole, and the central through hole penetrates through the thickness direction of the non-woven fabric.
The preferable technical scheme is that at least one strip-shaped fiber entanglement part consists of at least two unit entanglement strips, and a first through hole penetrating through the thickness direction of the non-woven fabric is arranged between the unit entanglement strips.
The preferable technical scheme is that the hole length direction of the first through hole is consistent with the distance direction of two point-shaped fiber entanglement parts connected with the unit entanglement strips.
Preferably, the thickness of the punctiform fiber entangled part is not smaller than the thickness of the strip-shaped fiber entangled part along the thickness direction of the non-woven fabric.
The preferable technical proposal is that the gram weight of the non-woven fabric is 25-35 g/m 2 。
The preferable technical scheme is that the lengths of the strip-shaped fiber entanglement parts in the closed graph are equal, and/or the outer contour diameters of the dot-shaped fiber entanglement parts are equal.
The second object of the present utility model is to provide a fabric comprising a fabric base layer and the fluffy porous nonwoven fabric.
The third object of the present utility model is to provide a layered heat-insulating product comprising the fluffy porous nonwoven fabric.
The fourth object of the present utility model is to provide a layered hygroscopic product, the above-mentioned fluffy porous nonwoven fabric.
The utility model has the advantages and beneficial effects that:
the fluffy porous non-woven fabric cloth cover and the outer Zhou Shougan of the central through hole are fluffy and soft, the fiber is continuous and has no interception point, the strength and the dimensional stability are good, and the porous structure is stable;
is suitable for fabrics, layered heat-insulating products and layered hygroscopic products.
Drawings
FIG. 1 is a photograph of a porous nonwoven fabric of example bulk;
FIG. 2 is a schematic structural view of an example bulk porous nonwoven fabric;
FIG. 3 is a schematic structural view of another embodiment of a bulky porous nonwoven fabric;
FIG. 4 is a schematic view of a stacked body of porous nonwoven fabric of an embodiment;
FIG. 5 is a schematic view of a fluffy porous nonwoven laminate structure according to another embodiment;
in the figure: 1. punctiform fiber entanglement; 2. a strip-like fiber entanglement portion; 21. a unit entanglement bar; 22. a first through hole.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present utility model and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or fixedly connected; can be mechanically or electrically connected; can be directly connected or indirectly connected. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
Examples
As shown in fig. 1 to 2, the embodiment bulk porous nonwoven fabric includes dot-like fiber entangled portions 1 and strip-like fiber entangled portions 2; the punctiform fiber entanglement parts 1 are nonwoven fiber aggregates, and the punctiform fiber entanglement parts 1 are arranged at intervals in rows and columns; the strip-shaped fiber entanglement parts 2 are also nonwoven fiber assemblies, and the strip-shaped fiber entanglement parts 2 are connected between two adjacent dot-shaped fiber entanglement parts 1; the adjacent punctiform fiber entanglement parts 1 and the strip-shaped fiber entanglement parts 2 are enclosed into a closed figure with a central through hole; the central through hole is a non-woven fabric puncture through hole.
It will be appreciated that nonwoven as opposed to woven, nonwoven fibrous assemblies are produced by known hydroentanglement, needle punching or air-jet needle-laying processes, preferably nonwoven fibrous assemblies produced by hydroentanglement.
The fiber of the fluffy porous non-woven fabric is single fiber or a mixture of a plurality of fibers, and the fiber can be selected from the following materials: polypropylene fibers, polyester fibers, polyamide fibers, polyvinyl alcohol fibers, polyacrylonitrile fibers, cotton fibers, viscose fibers, hemp fibers, wool fibers, lyocell fibers, coconut fibers, silk, waste fibers, and special fibers such as soluble binder fibers, hot melt binder fibers, bicomponent fibers (side by side, core-shell, discontinuous fiber core-shell, filament core-shell), ultrafine fibers, high performance fibers (aramid 1313, aramid 1414, polybenzimidazole fibers, polysulfonamide fibers, polytetrafluoroethylene fibers, carbon fibers), functional fibers (conductive, ultraviolet resistant, antibacterial, etc.), wood pulp fibers, crimped hollow fibers, polylactic acid fibers (PLA), and the like. The punctiform fiber entanglement 1 is made of the same or different constituent fibers as the strip-shaped fiber entanglement 2, or is made based on a web of partial fiber difference.
Specifically, as shown in the photograph of the drawing, the punctiform fiber entanglement units 1 and the strip-shaped fiber entanglement units 2 are all fluffy aggregates of fibers, so it is understood that the closed pattern is not equivalent to the regular punctiform fiber entanglement units 1 and the regular strip-shaped fiber entanglement units 2 obtained by punching a Gao Kechong non-woven fabric, the punctiform fiber entanglement units 1 and the strip-shaped fiber entanglement units 2 in the photograph are random shapes generated by hydroentanglement, and the outer contour meets the definition of punctiform and strip-shaped.
The non-woven fabric puncture through hole is the through hole that the puncture formed, and the non-woven fabric puncture through hole dodges to the side of keeping away from the through hole for die-cut through hole, and the fibre of outer fringe is mostly continuous form by the piercing action, and the fibre of die-cut through hole outer fringe is most to cut the form, perhaps cuts hot melt form.
The closed pattern having the central through hole is generally triangular (as shown in fig. 3) or quadrangular (as shown in fig. 4) based on the consideration of the dimensional stability of the nonwoven fabric:
the adjacent dot-like fiber entangled portions 1 and the strip-like fiber entangled portions 2 enclosing a triangle are specifically: one first punctiform fiber entanglement 1 in the N-th row and two second punctiform fiber entanglement 1 in the n+1-th row, wherein the second punctiform fiber entanglement 1 has a smaller spacing from the first punctiform fiber entanglement 1 than the other punctiform fiber entanglement 1 in the n+1-th row; the triangle takes the punctiform fiber entanglement part 1 as an end point and takes the strip-shaped fiber entanglement part 2 as a side;
the adjacent dot-like fiber entangled portions 1 and the strip-like fiber entangled portions 2 of the surrounding quadrangle are specifically: two first punctiform fiber entangled parts 1 in the N line and two second punctiform fiber entangled parts 1 in the N+1 line, the quadrangle can be approximate rectangle, parallelogram, trapezoid, the punctiform fiber entangled parts 1 are taken as end points, and the strip-shaped fiber entangled parts 2 are taken as edges; preferably, four sides of the quadrangle are equal;
the nonwoven fabric enclosed into a triangle has superior tensile strength and dimensional stability compared to the nonwoven fabric enclosed into a quadrangle by the adjacent dot-shaped fiber entangled portions 1 and the strip-shaped fiber entangled portions 2.
As shown in fig. 1-2, in a preferred embodiment, at least one of the strip-shaped fiber entanglement parts 2 is composed of at least two unit entanglement strips 21, and an elongated first through hole 22 is provided between the unit entanglement strips 21, the first through hole 22 being a nonwoven fabric piercing through hole. As shown in the photograph of the figure, the hole length direction of the first through holes 22 coincides with the pitch direction of the dot-like fiber entangled portions 1 connected to the unit entangled bar 21.
The elongated first through hole 22 is a piercing, not a die cut, regular shaped through hole, but a conformal through hole having a longer side and a shorter side. As shown in the photograph of fig. 1, most of the strip-shaped fiber entanglement 2 satisfies structural limitations of the unit entanglement strips 21 and the elongated first through holes 22, and the remaining strip-shaped fiber entanglement 2 is not elongated or has no through holes due to fiber distribution, orientation difference or piercing process at the time of lapping.
The punctiform fiber entanglement part 1 and the strip-shaped fiber entanglement part 2 occupy smaller area of the non-woven fabric, so that the through holes occupy larger area of the non-woven fabric, and the punctiform fiber entanglement part 1 and the strip-shaped fiber entanglement part 2 are combined with the fluffy state of the punctiform fiber entanglement part 1 and the strip-shaped fiber entanglement part 2, thereby being beneficial to providing larger space for accommodating liquid for the hygroscopic product and also providing larger space for accommodating air for the thermal product.
In the thermal insulation product, the specific heat of air is small, so that the thermal insulation effect of the thermal insulation product is improved. Compared with the existing heat-insulating product, the cost for applying the non-woven fabric of the embodiment to the heat-insulating product is lower on the basis of using and keeping the fluffiness or thickness of the non-woven fabric in a non-pressure state.
In some embodiments, the thickness of the punctiform fiber tangled is not less than the thickness of the strip-shaped fiber tangled in the thickness direction of the nonwoven fabric. Specifically, the ends of the ribbon-shaped fiber entangled portion are connected to the dot-shaped fiber entangled portion, the thickness of the connected ends is equal to that of the ribbon-shaped fiber entangled portion, and the thickness of the intermediate portion of the two connected ends is smaller than that of the ribbon-shaped fiber entangled portion.
In some embodiments, the grammage of the nonwoven is 25-35 g/m 2 。
In a preferred embodiment, as shown in fig. 2, at least three filament-like fiber tangles 2 in the closed pattern are of equal length and/or the outer diameters of the spot-like fiber tangles 1 are equal. The strip-shaped fiber entanglement part 2 and the dot-shaped fiber entanglement part 1 which are approximately the same in shape are continuous in both directions, and are continuously produced by adopting roller conveying, so that the production efficiency of the non-woven fabric is high.
The embodiment fabric comprises a fabric substrate layer which is connected in a laminated manner, and the fluffy porous non-woven fabric. The substrate layer can be selected from novel fabrics such as spun fabrics or transparent fabrics. The fluffy porous non-woven fabric is used as a surface layer or is matched with a transparent fabric, so that hollowed holes and fluffy handfeel of a fabric substrate layer can be provided, and the non-woven fabric has hollowed-out and fluffy structures similar to a crochet structure and can be used as a substitute of a crochet product, so that the production cost of the fabric is reduced.
Example layered heat retention products include the fluffy porous nonwoven fabrics described above, such as laminates comprising at least two layers of fluffy porous nonwoven fabrics, as shown in fig. 4. In the overlapped two layers of fluffy porous non-woven fabrics, the central through hole of the upper layer is correspondingly overlapped with the punctiform fiber intertwining part 1 and the strip-shaped fiber intertwining part 2 of the lower layer. Taking a fluffy porous nonwoven fabric adjacent to the punctiform fiber entangled portions 1 and the strip-shaped fiber entangled portions 2 as an example, the punctiform fiber entangled portions 1 of the upper layer are superposed and arranged at the central through hole of the next layer.
Alternatively, the stacked body may be a fluffy porous nonwoven random stacked body, as shown in fig. 5.
In fig. 4 and 5, one layer of the bulky porous nonwoven fabric is shown by a broken line, and the other layer of the bulky porous nonwoven fabric is shown.
Examples layered absorbent products include lofty porous nonwoven fabrics, such as laminates comprising at least two layers of lofty porous nonwoven fabrics. Further, the layered absorbent product comprises a first surface layer and a second surface layer, and a stacked body of fluffy porous non-woven fabrics is fixedly clamped between the first surface layer and the second surface layer.
Optionally, the layered thermal product is a thermal wadding, a thermal liner, and a thermal laminate.
The hygroscopic product can absorb water and oil, the layered water absorbing product is made by hydrophilic fiber lapping puncture, and the oil absorbing product is made by lipophilic fiber lapping puncture. The fluffy porous non-woven fabric laminated body structure in the hygroscopic product is the same as the laminated structure in the layered heat-insulating product.
Alternatively, the layered absorbent product is a kitchen cleaning nonwoven, a nonwoven face towel, a personal cleaning wet and dry towel.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (9)
1. A lofty porous nonwoven fabric, comprising:
the punctiform fiber entanglement parts are non-woven fiber aggregates and are arranged in rows and columns at intervals;
a strip-shaped fiber entanglement part which is a nonwoven fiber aggregate and is connected between two adjacent dot-shaped fiber entanglement parts;
the adjacent punctiform fiber entanglement parts and strip-shaped fiber entanglement parts are enclosed into a closed pattern with a central through hole, and the central through hole penetrates through the thickness direction of the non-woven fabric.
2. The bulky porous nonwoven fabric according to claim 1, wherein at least one of the strip-shaped fiber entanglement parts is composed of at least two unit entanglement strips, and first through holes penetrating through the nonwoven fabric in the thickness direction are provided between the unit entanglement strips.
3. The bulky porous nonwoven fabric according to claim 2, wherein the direction of the hole length of the first through hole coincides with the pitch direction of the two dot-like fiber entangled portions connected by the unit entangled bar.
4. The bulky porous nonwoven fabric according to claim 1, wherein the thickness of the dot-like fiber entangled portions is not smaller than the thickness of the strip-like fiber entangled portions in the thickness direction of the nonwoven fabric.
5. The bulky porous nonwoven fabric according to claim 1, wherein the nonwoven fabric has a grammage of 25 to 35g/m 2 。
6. The bulky porous nonwoven according to claim 1, wherein the stripe-shaped fiber entanglement portions in the closed pattern are equal in length and/or the dot-shaped fiber entanglement portions are equal in outer contour diameter.
7. A fabric comprising a laminate of a fabric substrate layer and the lofty porous nonwoven fabric of any one of claims 1 to 6.
8. A layered heat retention product comprising the lofty porous nonwoven fabric according to any one of claims 1 to 6.
9. A layered absorbent product comprising the lofty porous nonwoven web according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320818698.2U CN220099347U (en) | 2023-04-13 | 2023-04-13 | Fluffy porous non-woven fabric, layered heat-insulating product and hygroscopic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320818698.2U CN220099347U (en) | 2023-04-13 | 2023-04-13 | Fluffy porous non-woven fabric, layered heat-insulating product and hygroscopic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220099347U true CN220099347U (en) | 2023-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320818698.2U Active CN220099347U (en) | 2023-04-13 | 2023-04-13 | Fluffy porous non-woven fabric, layered heat-insulating product and hygroscopic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220099347U (en) |
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2023
- 2023-04-13 CN CN202320818698.2U patent/CN220099347U/en active Active
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