CN216400759U - Air-permeable elastic non-woven fabric - Google Patents
Air-permeable elastic non-woven fabric Download PDFInfo
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- CN216400759U CN216400759U CN202122012690.0U CN202122012690U CN216400759U CN 216400759 U CN216400759 U CN 216400759U CN 202122012690 U CN202122012690 U CN 202122012690U CN 216400759 U CN216400759 U CN 216400759U
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Abstract
The utility model relates to the field of disposable sanitary products, in particular to a breathable elastic non-woven fabric which comprises an upper layer of non-woven fabric, a lower layer of non-woven fabric and an elastic film, the upper non-woven fabric, the elastic film and the lower non-woven fabric are fixedly arranged to form fastening points, each fastening point is surrounded to form a plurality of cutting areas, at least one cutting unit is arranged in each cutting area, each cutting unit comprises an upper cutting part, a lower cutting part, a left cutting part and a right cutting part, the left cutting part and the right cutting part are vertically cut to form a long strip state, the length of the left cutting part and the right cutting part is smaller than that of the upper cutting part or the lower cutting part, the upper cutting part, the lower cutting part, the left cutting part and the right cutting part respectively cut the upper layer non-woven fabric, the lower layer non-woven fabric and the elastic film, when the upper layer non-woven fabric and the lower layer non-woven fabric are in a flat state, the elastic film is in a transverse stretching state. It has solved the technical problem that current elasticity non-woven fabrics gas permeability is not enough, can't form good travelling comfort.
Description
Technical Field
The utility model relates to the field of disposable sanitary products, in particular to an elastic non-woven fabric with air permeability.
Background
At present, elastic non-woven fabrics have more applications, particularly in the field of disposable sanitary products, and the structure of the elastic non-woven fabrics is as follows: CN201210380277.2 discloses a composite elastic nonwoven fabric structure and a method for manufacturing the same, wherein the composite elastic nonwoven fabric structure comprises an elastic fabric layer and a nonwoven fabric layer. The non-woven fabric layer is integrated with the elastic fabric layer. And the manufacturing method of the composite elastic non-woven fabric comprises the following steps: providing an elastic fabric layer; combining a non-woven fabric layer and the elastic fabric layer into a whole; hot-pressing the non-woven fabric layer and the elastic fabric layer to make them flat; and cooling the non-woven fabric layer and the elastic fabric layer. By using the composite elastic non-woven fabric structure and the manufacturing method thereof of the utility model, the properties of non-woven fabric such as tension, elastic force, tearing strength and elongation can be effectively increased.
In the field of existing disposable sanitary products, the application of the elastic material combined with the non-woven fabric is mainly applied to the waistline area of the paper diaper, in order to ventilate, the paper diaper is generally perforated, and holes of the elastic material are generally uniformly distributed, so that the balance between strength and ventilation is realized. However, for strength, the holes are usually not too dense, so that good ventilation is not achieved, and the comfort of wearing is slightly poor.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above problems, the present invention provides an elastic nonwoven fabric with air permeability, which solves the technical problems of the existing elastic nonwoven fabric that the air permeability is not sufficient and good comfort cannot be formed.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a gas permeability elasticity non-woven fabrics, includes upper non-woven fabrics, lower floor's non-woven fabrics and centre gripping elastic membrane between upper non-woven fabrics and lower floor's non-woven fabrics, fixed fastening point that forms through a plurality of connection positions between upper non-woven fabrics, elastic membrane, the lower floor's non-woven fabrics, each fastening point surrounds and forms a plurality of cutting regions, each cutting region is interior to have at least one cutting unit, each cutting unit includes the last cutting part of the rectangular shape that sets up along vertical cutting, the lower cutting part of the rectangular shape that sets up along vertical cutting, the left cutting part that sets up along vertical cutting that is located upper cutting part left, the right cutting part that is located lower cutting part right side, left cutting part, right cutting part set up along vertical cutting and form the rectangular state, the length of left cutting part, right cutting part is less than upper cutting part or lower cutting part, upper cutting part, lower cutting part, The left cutting portion and the right cutting portion respectively cut the upper-layer non-woven fabric, the lower-layer non-woven fabric and the elastic membrane, and when the upper-layer non-woven fabric and the lower-layer non-woven fabric are in a flat state, the elastic membrane is in a transverse stretching state.
Furthermore, the elastic film is positioned at the upper cutting part, the lower cutting part, the left cutting part and the right cutting part in a stretching state to form flat air holes.
Furthermore, in the vertical direction, the air holes formed by the left cutting part and the right cutting part are respectively positioned between the air holes formed by the upper cutting part and the lower cutting part.
Furthermore, the number of the left cutting parts is more than two, and the more than two left cutting parts and the upper cutting part form a first oblique line.
Furthermore, the number of the right cutting parts is more than two, and the more than two right cutting parts and the lower cutting part form a second oblique line.
Furthermore, each fastening point forms a plurality of oblique partition lines, the cutting area is positioned between two adjacent partition lines, more than two cutting units are arranged in each cutting area, the connecting line of the lower ends of the lower cutting parts of two adjacent cutting units is a first connecting line, and the first connecting line is parallel to each partition line.
Furthermore, the included angle between the separation line and the horizontal plane is 25-35 degrees.
Further, the distance between the first connecting line and the nearest separation line is 2.2-2.7 mm.
Furthermore, the upper cutting part, the left cutting part, the lower cutting part and the right cutting part of one cutting unit form a rhombus.
Further, the length of the fastening point along the longitudinal direction is greater than the length of the fastening point along the transverse direction, and the ratio is 2-3: 1.
by adopting the technical scheme, the utility model has the beneficial effects that: become a plurality of cutting regions through fastening point partition, be provided with at least one cutting unit in the cutting region, can form a plurality of bleeder vents regions that have the wall like this, because the elastic film is in horizontal tensile state, can make the elastic film form the bleeder vent of platykurtic in last cutting portion, lower cutting portion, left cutting portion, right cutting portion department moreover, this kind of bleeder vent can form the platykurtic because tensile state, its size often is relevant with vertical cutting length. The vertical length of the upper cutting part and the lower cutting part is generally set to be 1.5-5 mm, the vertical length of the left cutting part and the right cutting part is generally set to be 0.5-2 mm, and the ratio of the upper cutting part or the lower cutting part to the left cutting part or the right cutting part is generally 2-3: 1. as for the widths of the upper cutting part, the lower cutting part, the left cutting part and the right cutting part, the smaller the width is, the better the width is, the forming mode can adopt cutting or other means, adopt an ultrasonic welding mode, realize penetration and form better forming. Adopt ultrasonic bonding back, also can make upper non-woven fabrics, lower floor's non-woven fabrics can form the bonding, also form the welding hole in the position department of last cutting part, lower cutting part, left cutting part, right cutting part, the bleeder vent can expand in this position like this to can make ventilative effect better. Furthermore, the number of the left cutting part and the right cutting part of each cutting unit is two, and the vent holes in the upper cutting part, the lower cutting part, the left cutting part and the right cutting part form a good ventilation structure. Furthermore, the arrangement of the first oblique line and the second oblique line can form a better arrangement mode, and better arrangement of the cutting units is realized, so that effective ventilation is realized. Furthermore, through the setting of the oblique zone line, can form better distribution effect, when transversely stretching, through the restriction of slant like this, can realize better stability. Through the parallelism of the first connecting line and the separating line, each air hole can present a better stretching state. By the arrangement, the stretching forming of each air hole can be effectively controlled. The included angle between the partition line and the horizontal plane is 25-35 degrees, the distance between the first connecting line and the nearest partition line is 2.2-2.7 mm, and the numerical setting is a better range and can form reasonable interval distribution. The upper cutting part, the left cutting part, the lower cutting part and the right cutting part of one cutting unit form a rhombus, and the effective distribution is also realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a display state diagram of FIG. 1;
fig. 4 is a reference diagram of the present invention.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 4, the present embodiment provides an elastic nonwoven fabric with air permeability, which includes an upper layer nonwoven fabric 1, a lower layer nonwoven fabric 2, and an elastic film 3 sandwiched between the upper layer nonwoven fabric 1 and the lower layer nonwoven fabric 2, the upper layer nonwoven fabric 1, the elastic film 3, and the lower layer nonwoven fabric 2 are fixed by a plurality of connecting portions to form fastening points 4, each fastening point 4 surrounds a plurality of cutting regions 5, at least one cutting unit 6 is disposed in each cutting region 5, each cutting unit 6 includes an elongated upper cutting portion 61 cut along a vertical direction, an elongated lower cutting portion 62 cut along a vertical direction, a left cutting portion 63 cut along a vertical direction on a left side of the upper cutting portion 61, and a right cutting portion 64 cut along a vertical direction on a right side of the lower cutting portion 62, the left cutting portion 63 and the right cutting portion 64 are cut along a vertical direction to form a long strip state, the length of the left cutting part 63 and the right cutting part 64 is smaller than that of the upper cutting part 61 or the lower cutting part 62, the upper cutting part 61, the lower cutting part 62, the left cutting part 63 and the right cutting part 64 respectively cut the upper layer non-woven fabric 1, the lower layer non-woven fabric 2 and the elastic membrane 3, and when the upper layer non-woven fabric 1 and the lower layer non-woven fabric 2 are in a flat state, the elastic membrane 3 is in a transverse stretching state.
The elastic film 3 is positioned at the upper cutting part 61, the lower cutting part 62, the left cutting part 63 and the right cutting part 64 in a stretching state to form flat air holes 7.
In the vertical direction, the ventilation holes formed by the left and right cutting portions 63 and 64 are respectively located between the ventilation holes formed by the upper and lower cutting portions 61 and 62. The number of the left cutting portions 63 is two or more, and the two left cutting portions 63 and the upper cutting portion 61 form a first oblique line D. The number of the right cutting portions 64 is two or more, and the two right cutting portions 64 and the lower cutting portion 62 form a second oblique line E. Each fastening point 4 forms a plurality of oblique dividing lines F, the cutting area 5 is located between two adjacent dividing lines F, and the connecting line of the lower ends of the lower cutting portions 62 of two adjacent cutting units 6 is a first connecting line G, and the first connecting line G is parallel to each dividing line F. And the included angle C between the separation line F and the horizontal plane is 25-35 degrees. The distance between the first connecting line G and the nearest separation line F is 2.2-2.7 mm. The upper cutting portion 61, the left cutting portion 63, the lower cutting portion 62, and the right cutting portion 64 of one cutting unit 6 form a rhombus H. The length of fastening point 4 along longitudinal direction is greater than along transverse direction's length, and the ratio is 2 ~ 3: 1.
in this embodiment, the upper cutting part 61, the lower cutting part 62, the left cutting part 63, and the right cutting part 64 are formed by ultrasonic welding, and the vent holes are formed at the elastic film, and the upper layer nonwoven fabric and the lower layer nonwoven fabric are bonded, and a vent through hole 8 is formed at the bonded portion. In this embodiment, the upper cutting portion 61, the lower cutting portion 62, the left cutting portion 63, and the right cutting portion 64 may be formed by cutting with a blade. The stretch ratio of the elastic film is usually 1.5 to 4, but it may be larger or smaller, and the thickness of the elastic film may be selected according to actual needs, and in a state where the elastic film is not stretched, the thickness of the elastic film is selected from 0.2 to 1 mm.
As shown in fig. 4, six ventilation holes 7 form a cutting unit, and the plurality of cutting units are uniformly distributed, so that the ventilation performance of the elastic membrane is greatly enhanced.
The utility model has the beneficial effects that: become a plurality of cutting regions through fastening point partition, be provided with at least one cutting unit in the cutting region, can form a plurality of bleeder vents regions that have the wall like this, because the elastic film is in horizontal tensile state, can make the elastic film form the bleeder vent of platykurtic in last cutting portion, lower cutting portion, left cutting portion, right cutting portion department moreover, this kind of bleeder vent can form the platykurtic because tensile state, its size often is relevant with vertical cutting length. The vertical length of the upper cutting part and the lower cutting part is generally set to be 1.5-5 mm, the vertical length of the left cutting part and the right cutting part is generally set to be 0.5-2 mm, and the ratio of the upper cutting part or the lower cutting part to the left cutting part or the right cutting part is generally 2-3: 1. as for the widths of the upper cutting part, the lower cutting part, the left cutting part and the right cutting part, the smaller the width is, the better the width is, the forming mode can adopt cutting or other means, adopt an ultrasonic welding mode, realize penetration and form better forming. Adopt ultrasonic bonding back, also can make upper non-woven fabrics, lower floor's non-woven fabrics can form the bonding, also form the welding hole in the position department of last cutting part, lower cutting part, left cutting part, right cutting part, the bleeder vent can expand in this position like this to can make ventilative effect better. Furthermore, the number of the left cutting part and the right cutting part of each cutting unit is two, and the vent holes in the upper cutting part, the lower cutting part, the left cutting part and the right cutting part form a good ventilation structure. Furthermore, the arrangement of the first oblique line and the second oblique line can form a better arrangement mode, and better arrangement of the cutting units is realized, so that effective ventilation is realized. Furthermore, through the setting of the oblique zone line, can form better distribution effect, when transversely stretching, through the restriction of slant like this, can realize better stability. Through the parallelism of the first connecting line and the separating line, each air hole can present a better stretching state. By the arrangement, the stretching forming of each air hole can be effectively controlled. The included angle between the partition line and the horizontal plane is 25-35 degrees, the distance between the first connecting line and the nearest partition line is 2.2-2.7 mm, and the numerical setting is a better range and can form reasonable interval distribution. The upper cutting part, the left cutting part, the lower cutting part and the right cutting part of one cutting unit form a rhombus, and the effective distribution is also realized.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (10)
1. The utility model provides a gas permeability elasticity non-woven fabrics, includes upper non-woven fabrics, lower floor's non-woven fabrics and centre gripping elastic membrane between upper non-woven fabrics and lower floor's non-woven fabrics, its characterized in that: the upper non-woven fabric, the elastic membrane and the lower non-woven fabric are fixedly connected through a plurality of connecting parts to form fastening points, each fastening point is surrounded to form a plurality of cutting areas, each cutting area is internally provided with at least one cutting unit, each cutting unit comprises an elongated upper cutting part arranged along the vertical cutting, an elongated lower cutting part arranged along the vertical cutting, a left cutting part arranged along the vertical cutting and positioned at the left side of the upper cutting part, and a right cutting part arranged along the vertical cutting and positioned at the right side of the lower cutting part, the left cutting part and the right cutting part are arranged along the vertical cutting to form a long strip state, the lengths of the left cutting part and the right cutting part are smaller than that of the upper cutting part or the lower cutting part, the upper cutting part, the lower cutting part, the left cutting part and the right cutting part respectively cut the upper non-woven fabric, the lower non-woven fabric and the elastic membrane, and when the upper non-woven fabric and the lower non-woven fabric are in a straight state, the elastic film is in a stretched state in the transverse direction.
2. A breathable, elastic nonwoven fabric according to claim 1, wherein: the elastic film is positioned at the upper cutting part, the lower cutting part, the left cutting part and the right cutting part under the stretching state to form flat air holes.
3. A breathable, elastic nonwoven fabric according to claim 2, wherein: in the vertical direction, the air holes formed by the left cutting part and the right cutting part are respectively positioned between the air holes formed by the upper cutting part and the lower cutting part.
4. A breathable, elastic nonwoven fabric according to claim 2, wherein: the left cutting part is more than two, and the left cutting part and the upper cutting part form an oblique first oblique line.
5. A breathable, elastic nonwoven fabric according to claim 2, wherein: the right cutting parts are more than two, and the more than two right cutting parts and the lower cutting part form a second oblique line.
6. A breathable, elastic nonwoven fabric according to claim 1, wherein: each fastening point forms a plurality of oblique partition lines, the cutting area is positioned between two adjacent partition lines, more than two cutting units are arranged in each cutting area, the connecting line of the lower ends of the lower cutting parts of two adjacent cutting units is a first connecting line, and the first connecting line is parallel to each partition line.
7. A breathable, elastic nonwoven fabric according to claim 6, characterized in that: the included angle between the separation line and the horizontal plane is 25-35 degrees.
8. A breathable, elastic nonwoven fabric according to claim 6, characterized in that: the distance between the first connecting line and the nearest separation line is 2.2-2.7 mm.
9. A breathable, elastic nonwoven fabric according to claim 6, characterized in that: the upper cutting part, the left cutting part, the lower cutting part and the right cutting part of one cutting unit form a rhombus.
10. A breathable, elastic nonwoven fabric according to any one of claims 1 to 5, characterized in that: the length of fastening point along longitudinal direction is greater than along transverse direction's length, and the ratio is 2 ~ 3: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122012690.0U CN216400759U (en) | 2021-08-25 | 2021-08-25 | Air-permeable elastic non-woven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122012690.0U CN216400759U (en) | 2021-08-25 | 2021-08-25 | Air-permeable elastic non-woven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216400759U true CN216400759U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122012690.0U Active CN216400759U (en) | 2021-08-25 | 2021-08-25 | Air-permeable elastic non-woven fabric |
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| CN (1) | CN216400759U (en) |
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2021
- 2021-08-25 CN CN202122012690.0U patent/CN216400759U/en active Active
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