CN211674919U - Bridge type breathable composite film - Google Patents
Bridge type breathable composite film Download PDFInfo
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- CN211674919U CN211674919U CN201922102338.9U CN201922102338U CN211674919U CN 211674919 U CN211674919 U CN 211674919U CN 201922102338 U CN201922102338 U CN 201922102338U CN 211674919 U CN211674919 U CN 211674919U
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- breathable
- ventilated membrane
- film
- woven fabrics
- woven fabric
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Abstract
The utility model discloses a bridge frame formula ventilative complex film, including non-woven fabrics and ventilated membrane, the ventilated membrane interval is located on the non-woven fabrics and the both sides of ventilated membrane leave the non-woven fabrics, the ventilated membrane passes through the hot melt adhesive bonding with the non-woven fabrics, the width of ventilated membrane is 70-80mm, and the interval of two ventilated membranes is 45-55mm, the ventilated membrane adopts bridge frame formula structure under the prerequisite of guaranteeing that ventilative complex film does not leak laterally, increases the gas permeability of ventilative complex film, and on the other hand can save material.
Description
Technical Field
The utility model relates to a technical field of ventilative complex film, in particular to bridge frame type ventilative complex film.
Background
Nonwoven fabric is also called non-woven fabric, because it has the characteristics of softness, skin-friendliness and air permeability, it is widely used in sanitary articles such as sanitary napkins, diapers and the like, cleaning articles such as wiping devices and the like, at present, the non-woven fabric is mainly used in the liquid-tight bottom layer, the non-woven fabric and the air permeable membrane are compounded into a composite bottom membrane as the liquid-tight bottom layer of the sanitary absorbing article, and the non-woven fabric layer in the composite bottom membrane is used as the outer layer material of the sanitary absorbing article, the purpose is to make the hand feeling of the sanitary absorbing article softer and make the appearance of the sanitary absorbing article more beautiful.
However, the breathable film as the liquid-impermeable bottom layer has a limited amount of permeability, and after a layer of non-woven fabric is further laminated on the surface layer of the breathable film, the air holes of the breathable film will be blocked, covered or blocked by the non-woven fabric, such as a centered composite film for paper diapers disclosed in chinese patent application No. CN201320096388.0, which comprises a non-woven fabric layer and a breathable film layer centrally bonded on the non-woven fabric layer by a hot-melt adhesive, wherein the width of the breathable film layer is 190mm-250mm, and the width of the non-woven fabric layer is 250mm-350 mm.
However, the air permeability of the composite film is greatly reduced, so that the air permeability and the moisture permeability of the sanitary absorption article are also greatly reduced after the sanitary absorption article absorbs body fluid, the wearing comfort of the sanitary absorption article is reduced, and skin diseases such as erythra and eczema of infants are easy to appear.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bridge frame type breathable composite film, the ventilated membrane adopts bridge frame type structure under the prerequisite of guaranteeing the not edge leakage of breathable composite film, increases the gas permeability of breathable composite film, and on the other hand can save material.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a bridge frame formula complex film of breathing freely, includes non-woven fabrics and ventilated membrane, the ventilated membrane interval is located on the non-woven fabrics and the both sides of ventilated membrane leave the non-woven fabrics, the ventilated membrane passes through the hot melt adhesive with the non-woven fabrics and bonds.
Furthermore, the upper ends of the two breathable films are provided with an absorption core layer, and the absorption core layer covers the non-woven fabric between the two breathable films and extends to the breathable films at the two ends.
Further, the distance a between the two outer ends of the breathable film is larger than the width b of the absorption core layer, and the width b of the absorption core layer is larger than the distance c between the two inner ends of the breathable film.
Further, the width d of the breathable films is 70-80mm, and the distance c between the inner ends of the two breathable films is 45-55mm
Furthermore, the thickness of the breathable film is 0.015mm-0.02mm, and the thickness of the non-woven fabric is 0.025mm-0.035 mm.
To sum up, the utility model discloses following beneficial effect has:
the utility model provides a bridge frame formula complex film of breathing freely, includes non-woven fabrics and ventilated membrane, the ventilated membrane interval is located on the non-woven fabrics and the both sides of ventilated membrane leave the non-woven fabrics, the ventilated membrane passes through the hot melt adhesive bonding with the non-woven fabrics, and the upper end of two ventilated membranes sets up the absorption sandwich layer, the absorption sandwich layer covers the non-woven fabrics between two ventilated membranes and extends to the ventilated membrane at both ends, interval an between two outer ends of ventilated membrane is greater than the width b of absorption sandwich layer, the width b of absorption sandwich layer is greater than the interval c between two inner of ventilated membrane, through the aforesaid setting, can reach the effect that prevents the edge leakage, can increase the gas permeability of this complex film of breathing freely again, has practiced thrift the material of ventilated membrane.
Drawings
FIG. 1 is a schematic representation of the structure of a breathable composite membrane of the prior art;
FIG. 2 is a schematic representation of the structure of a breathable composite film and an absorbent core in accordance with the prior art;
fig. 3 is a schematic view of the overall structure of the present invention;
FIG. 4 is a schematic structural view of the breathable composite film and the absorbent core of the present invention;
fig. 5 is a cross-sectional view of the present invention.
In the figure: 1. non-woven fabrics; 2. a gas permeable membrane; 3. an absorbent core layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-5, a bridge frame type breathable composite film comprises a non-woven fabric 1 and a breathable film 2, wherein the breathable film 2 is arranged on the non-woven fabric 1 at intervals, the non-woven fabric 1 is reserved on two sides of the breathable film 2, and the breathable film 2 is bonded with the non-woven fabric 1 through hot melt adhesive.
The upper ends of the two breathable films 2 are used for arranging an absorption core layer 3, and the absorption core layer 3 covers the non-woven fabric 1 between the two breathable films 2 and extends to the breathable films 2 at the two ends.
The distance a between the two outer ends of the breathable film 2 is larger than the width b of the absorption core layer 3, and the width b of the absorption core layer 3 is larger than the distance c between the two inner ends of the breathable film 2.
The width d of the breathable films 2 is 70-80mm, the inner end distance c between the two breathable films 2 is 45-55mm, preferably, the width d of the breathable films 2 is 75mm, the inner end distance c between the two breathable films 2 is 50mm, the outer end distance a between the two breathable films 2 is 200mm, and the width b of the absorption core layer is 125 mm.
The thickness of ventilated membrane 2 is 0.015mm-0.02mm, the thickness of non-woven fabrics 1 is 0.025mm-0.035mm, the utility model discloses in the thickness of this ventilated membrane 2 be 0.018mm, the thickness of non-woven fabrics 1 is 0.03 mm.
The utility model discloses a basic operating principle does:
the utility model provides a bridge frame formula breathable composite film, 2 intervals of ventilated membrane locate on non-woven fabrics 1 and the both sides of ventilated membrane 2 leave non-woven fabrics 1, ventilated membrane 2 passes through the hot melt adhesive bonding with non-woven fabrics 1, and the upper end of two ventilated membranes 2 sets up absorption sandwich layer 3, absorb sandwich layer 3 and cover non-woven fabrics 1 between two ventilated membranes 2 and extend to the ventilated membrane 2 at both ends, interval an between two outer ends of ventilated membrane 2 is greater than the width b of absorption sandwich layer 3, the width b of absorption sandwich layer 3 is greater than the interval c between two inner of ventilated membrane 2, through the aforesaid setting, can reach the effect that prevents the edge leakage, can increase the gas permeability of this breathable composite film again, has practiced thrift the material of ventilated membrane 2 simultaneously, and on the other hand breathable composite film has reduced ventilated membrane.
The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.
Claims (5)
1. The utility model provides a bridge frame formula complex film of breathing freely, includes non-woven fabrics (1) and ventilated membrane (2), its characterized in that: the breathable film (2) is arranged on the non-woven fabric (1) at intervals, the non-woven fabric (1) is reserved on two sides of the breathable film (2), and the breathable film (2) is bonded with the non-woven fabric (1) through hot melt adhesive.
2. A bridge frame breathable composite film according to claim 1, wherein: the upper ends of the two breathable films (2) are provided with an absorption core layer (3), and the absorption core layer (3) covers the non-woven fabric (1) between the two breathable films (2) and extends to the breathable films (2) at the two ends.
3. A bridge frame breathable composite film according to claim 2, wherein: the distance a between the two outer ends of the breathable film (2) is larger than the width b of the absorption core layer (3), and the width b of the absorption core layer (3) is larger than the distance c between the two inner ends of the breathable film (2).
4. A bridge frame breathable composite film according to claim 3, wherein: the width d of the breathable films (2) is 70-80mm, and the distance c between the inner ends of the two breathable films (2) is 45-55 mm.
5. A bridge frame breathable composite film according to claim 1, wherein: the thickness of the breathable film (2) is 0.015-0.02 mm, and the thickness of the non-woven fabric (1) is 0.025-0.035 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922102338.9U CN211674919U (en) | 2019-11-29 | 2019-11-29 | Bridge type breathable composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922102338.9U CN211674919U (en) | 2019-11-29 | 2019-11-29 | Bridge type breathable composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211674919U true CN211674919U (en) | 2020-10-16 |
Family
ID=72788827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922102338.9U Active CN211674919U (en) | 2019-11-29 | 2019-11-29 | Bridge type breathable composite film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211674919U (en) |
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2019
- 2019-11-29 CN CN201922102338.9U patent/CN211674919U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210218 Address after: 312000 1st floor, R & D building, north of Sanjiang Road, Yuecheng District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Hansheng Environmental Protection Technology Co.,Ltd. Address before: 312000 No.1-21, Yuanchuan village, Dongpu town, Yuecheng District, Shaoxing City, Zhejiang Province Patentee before: Hu Lijiang |