CN219820829U - Automobile roof using barrier film non-woven fabric - Google Patents
Automobile roof using barrier film non-woven fabric Download PDFInfo
- Publication number
- CN219820829U CN219820829U CN202321255470.3U CN202321255470U CN219820829U CN 219820829 U CN219820829 U CN 219820829U CN 202321255470 U CN202321255470 U CN 202321255470U CN 219820829 U CN219820829 U CN 219820829U
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- CN
- China
- Prior art keywords
- woven fabric
- barrier film
- film
- layer
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 60
- 230000004888 barrier function Effects 0.000 title claims abstract description 58
- 230000001070 adhesive effect Effects 0.000 claims abstract description 18
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 239000007888 film coating Substances 0.000 claims abstract description 4
- 238000009501 film coating Methods 0.000 claims abstract description 4
- 238000007731 hot pressing Methods 0.000 claims abstract description 4
- 239000003365 glass fiber Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000004831 Hot glue Substances 0.000 abstract description 6
- 239000002390 adhesive tape Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 11
- 239000004814 polyurethane Substances 0.000 description 7
- 239000012855 volatile organic compound Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002397 thermoplastic olefin Polymers 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The utility model provides an automobile roof using a barrier film non-woven fabric, which has the following structure from top to bottom: the upper layer of non-woven fabric with the barrier film comprises a fabric layer, the upper layer of non-woven fabric with the barrier film, the upper layer of adhesive, the PU plate, the lower layer of adhesive, the lower layer of non-woven fabric with the barrier film; wherein the layers are mutually bonded and then mutually combined in a hot molding mode; the upper surfaces of the upper barrier film non-woven fabric and the lower barrier film non-woven fabric are provided with barrier films, the lower layer is a spun-laced non-woven fabric, and the spun-laced non-woven fabric and the barrier films are subjected to film coating processing through a hot-pressing composite process; the barrier film sequentially comprises an upper PE film, a PA film and a lower PE film. According to the utility model, the non-woven fabric with the barrier film structure is used to prevent the adhesive of the ceiling framework from exuding, eliminate the use of a release agent, improve the appearance of the back surface of the ceiling, increase the adhesive force of the adhesive tape, and cancel the use of the back hot melt adhesive, so that the aims of reducing odor and VOC and improving the production beat are achieved.
Description
Technical Field
The utility model relates to the technical field of automotive interiors, in particular to an automotive roof using barrier film non-woven fabrics.
Background
In the future, the development trend of automobiles is light weight and environmental protection, the automotive interior ceiling is an important component of the interior of the whole automobile, and the ceiling material is more required to develop towards an environmental protection material with high strength, low volatility and high recycling rate while pursuing appearance and sound absorption and insulation. The ceiling is a laminated product compounded by a plurality of layers of materials, is particularly critical in material selection, has the characteristics of light weight, high strength, dimensional stability, easy molding and processing and the like, generally adopts a semi-rigid polyurethane foam sheet as an inner material, adopts glass fiber felt and non-woven fabrics as a bottom lining and a reinforced rigid material, adopts a polyester knitted fabric layer or a suede fabric layer as a surface skin, and is molded by compression molding.
The production process of the automobile ceiling comprises three steps of skeleton molding, face decoration compounding, cutting and finishing, the prior art relates to skeleton molding, the molding process is to carry out double-sided water sprinkling treatment on PU plates through double-sided rolling coating adhesive, then carry out material stacking on non-woven fabrics, glass fiber mats and PU plates according to material structures, place the materials on a mold, carry out hot press molding for a certain dwell time, the non-woven fabrics are spun-laced non-woven fabrics, the weight of the non-woven fabrics is 55-60 g/square meter, and the adhesive rapidly solidifies and bonds the glass fiber mats, the non-woven fabrics and the PU plates together in the molding process to form a ceiling skeleton base type with a certain molding and strength.
The following problems exist in the prior art: in the forming process of the automobile roof, due to the bonding characteristic of the adhesive, the adhesive seepage of the non-woven fabric of the back layer can occur, so that the roof is difficult to demould, the mould is required to be sprayed with a mould release agent for auxiliary demoulding, the roof is stained with the mould release agent, and the adhesive exuded by the non-woven fabric of the back layer generates rubber taste; in addition, as the release agent residues exist in the non-woven fabrics of the ceiling back layer, the release agent has a lubricating and isolating effect, the surface energy of the non-woven fabrics of the ceiling back layer is greatly reduced, the adhesive tape and the non-woven fabrics of the ceiling back layer are not adhered well, the wiring harness cannot be effectively fixed, the hot melt adhesive needs to be precoated on the ceiling to improve the adhesive effect, the manufacturing cost of the ceiling is increased, and meanwhile, the odor and VOC (volatile organic compound) performance of the ceiling are out of standard due to the pollution of the hot melt adhesive and the release agent.
For this reason, designing an automobile roof that solves the above problems has become an important direction.
Disclosure of Invention
Based on the above-mentioned current situation, the main object of the present utility model is to provide an automobile ceiling using a non-woven fabric with a barrier film, which prevents the adhesive of a ceiling frame from exuding by using the non-woven fabric with the barrier film structure, eliminates the use of a release agent, improves the appearance of the back surface of the ceiling, increases the adhesive force of an adhesive tape, and cancels the use of a back-surface hot melt adhesive, thereby achieving the aims of reducing odor and VOC and improving the production beat.
The utility model adopts the following technical scheme:
an automobile roof using a barrier film non-woven fabric has the structure from top to bottom that: the upper layer of non-woven fabric with the barrier film comprises a fabric layer, the upper layer of non-woven fabric with the barrier film, the upper layer of adhesive, the PU plate, the lower layer of adhesive, the lower layer of non-woven fabric with the barrier film; wherein the layers are mutually bonded and then mutually combined in a hot molding mode; the upper surfaces of the upper barrier film non-woven fabric and the lower barrier film non-woven fabric are provided with barrier films, the lower layer is a spun-laced non-woven fabric, and the spun-laced non-woven fabric and the barrier films are subjected to film coating processing through a hot-pressing composite process; the barrier film sequentially comprises an upper PE film, a PA film and a lower PE film.
Further, the barrier film is taken as a whole, and the weight ratio of the upper PE film to the lower PE film is the same.
Further, the weight of the spun-laced nonwoven is 1.3 times the weight of the barrier film.
The beneficial effects of the utility model are as follows:
1. the non-woven fabric of the barrier film adopts polyamide PA as the barrier layer, so that a good glue seepage prevention effect can be achieved, a release agent is not used any more, the continuous production capacity of the die is enhanced, and the production efficiency is improved.
2. The application of the non-woven fabric of the barrier film avoids the use of hot melt adhesive to strengthen harness fixation of the back layer of the ceiling, reduces release agent pollution and hot melt adhesive use, and improves odor and VOC performance of the ceiling.
Drawings
FIG. 1 is a schematic diagram of the composition structure of an automobile roof using a barrier film nonwoven fabric according to the present utility model;
FIG. 2 is a schematic diagram of the composition structure of the non-woven fabric of the barrier film of the present utility model;
Detailed Description
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
In the present specification, the words "upper", "lower", "left", "right" and the like indicate directions are words of convenience only and are not limiting.
As shown in fig. 1 and 2, an automobile roof using a non-woven fabric of a barrier film has the following structure from top to bottom: the upper layer of non-woven fabric 20 of the barrier film, the upper layer of glass fiber felt 30, the upper layer of adhesive 40, the PU plate 50, the lower layer of adhesive 60, the lower layer of glass fiber felt 70 and the lower layer of non-woven fabric 80 of the barrier film; wherein the layers are mutually bonded and then mutually combined in a hot molding mode; the upper surfaces of the upper barrier film non-woven fabric 20 and the lower barrier film non-woven fabric 80 are provided with barrier films 21, the lower layer is a spun-laced non-woven fabric 22, and the spun-laced non-woven fabric 22 and the barrier films 21 finish film coating processing through a hot-pressing composite process; the barrier film 21 sequentially comprises an upper PE film 211, a PA film 212 and a lower PE film 213.
Further, the barrier film 21 is taken as a whole, and the weight ratio of the upper PE film 211, the PA film 212, and the lower PE film 213 is the same.
Further, the weight of the spun-laced nonwoven fabric 22 is 1.3 times the weight of the barrier film 21.
The manufacturing method of the automobile roof framework base type by using the non-woven fabric of the barrier film comprises the following steps: the non-woven fabric of the barrier film is pre-cut according to the process size, the PU plate 50 of the ceiling is sprayed with water through the roller glue, the non-woven fabric 20 of the barrier film on the upper layer, the glass fiber felt 30 of the upper layer, the PU plate 50 (sprayed with water through the roller glue), the glass fiber felt 70 of the lower layer and the non-woven fabric 80 of the barrier film on the lower layer are aligned and paved according to the material structure, and the non-woven fabric of the barrier film is placed into a die for hot press molding, and the die does not need to spray a release agent in the production process.
The material from which the facestock layer is made (i.e., facestock) may be selected from nonwoven, woven, thermoplastic Polyolefin (TPO) or PVC films without compromising the design objectives of the present utility model. Wherein the woven cloth can be selected from acrylic fiber and/or terylene.
The foregoing is merely an example of the present utility model, and the specific structures and features of common knowledge known in the art are not described herein too much, so that those skilled in the art will readily understand that the scope of the present utility model is not limited to such specific embodiments. Variations and modifications can be made without departing from the scope of the utility model, which is to be considered as limited to the details of construction and the utility of the patent.
Claims (3)
1. An automobile roof using a barrier film non-woven fabric is characterized in that the structure from top to bottom is as follows: the upper-layer glass fiber felt comprises a fabric layer (10), an upper-layer barrier film non-woven fabric (20), an upper-layer glass fiber felt (30), an upper-layer adhesive (40), a PU plate (50), a lower-layer adhesive (60), a lower-layer glass fiber felt (70) and a lower-layer barrier film non-woven fabric (80); wherein the layers are mutually bonded and then mutually combined in a hot molding mode; the upper surfaces of the upper barrier film non-woven fabric (20) and the lower barrier film non-woven fabric (80) are provided with barrier films (21), the lower layer is a spun-laced non-woven fabric (22), and the spun-laced non-woven fabric (22) and the barrier films (21) finish film coating processing through a hot-pressing composite process; the barrier film (21) sequentially comprises an upper PE film (211), a PA film (212) and a lower PE film (213).
2. The vehicle ceiling using the barrier film nonwoven fabric according to claim 1, wherein the weight ratio of the upper PE film (211), the PA film (212), and the lower PE film (213) is the same with the barrier film (21) as a whole.
3. The automotive ceiling using the barrier film nonwoven fabric according to claim 2, wherein the weight of the spun-laced nonwoven fabric (22) is 1.3 times the weight of the barrier film (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321255470.3U CN219820829U (en) | 2023-05-23 | 2023-05-23 | Automobile roof using barrier film non-woven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321255470.3U CN219820829U (en) | 2023-05-23 | 2023-05-23 | Automobile roof using barrier film non-woven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219820829U true CN219820829U (en) | 2023-10-13 |
Family
ID=88282983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321255470.3U Active CN219820829U (en) | 2023-05-23 | 2023-05-23 | Automobile roof using barrier film non-woven fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219820829U (en) |
-
2023
- 2023-05-23 CN CN202321255470.3U patent/CN219820829U/en active Active
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| GR01 | Patent grant | ||
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