CN220535146U - Elastic PVC film - Google Patents
Elastic PVC film Download PDFInfo
- Publication number
- CN220535146U CN220535146U CN202321048968.2U CN202321048968U CN220535146U CN 220535146 U CN220535146 U CN 220535146U CN 202321048968 U CN202321048968 U CN 202321048968U CN 220535146 U CN220535146 U CN 220535146U
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- Prior art keywords
- pvc film
- main body
- film
- elastic
- pvc
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- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims description 27
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 16
- 239000010410 layer Substances 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000002788 crimping Methods 0.000 description 10
- 239000003755 preservative agent Substances 0.000 description 6
- 230000002335 preservative effect Effects 0.000 description 6
- 239000012943 hotmelt Substances 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 240000005002 Erythronium dens canis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The utility model belongs to the technical field of films, and particularly relates to an elastic PVC film, which comprises a first PVC film main body, a second PVC film main body arranged on the first PVC film main body, an elastic net sheet arranged between the first PVC film main body and the second PVC film main body, a first compression joint film and a second compression joint film.
Description
Technical Field
The utility model relates to the technical field of films, in particular to an elastic PVC film.
Background
The existing PVC film is poor in rebound resilience performance in the transverse direction and the longitudinal direction, when the PVC film is subjected to transverse pulling force and longitudinal pulling force, the pulling force is larger than the rebound modulus of the PVC film, the PVC film is deformed, the PVC film is stretched after deformation, particularly, the PVC preservative film is involved, after the PVC preservative film is subjected to pulling force, the width of the PVC preservative film is narrowed, the width of the PVC preservative film is smaller than the sealing position of a container, the use of the PVC preservative film is affected, and the rebound resilience of the PVC preservative film is guaranteed in order to improve the elasticity of the PVC film.
To solve the above problems, an elastic PVC film is proposed in the present application.
Disclosure of Invention
Object of the utility model
In order to solve the technical problems in the background technology, the utility model provides an elastic PVC film, which has the characteristics that two groups of first compression bonding films and second compression bonding films are matched and respectively subjected to hot melt compression bonding at two ends of an elastic net sheet, warp yarns and weft yarns forming the elastic net sheet are polyester monofilaments, so that the elastic net sheet has high integral strength and good elasticity, then the first PVC film main body and the second PVC film main body are compositely bonded together, the elastic net sheet is arranged between the first PVC film main body and the second PVC film main body, so that the film has good transverse and longitudinal tensile force, and simultaneously the film has good rebound resilience, and when the tensile force is overlarge, the rebound of the film can be ensured, the film is prevented from extending, and normal use is ensured.
(II) technical scheme
In order to solve the technical problems, the utility model provides an elastic PVC film, which comprises a first PVC film main body, a second PVC film main body arranged on the first PVC film main body, an elastic net piece arranged between the first PVC film main body and the second PVC film main body, a first compression joint film and a second compression joint film;
the first PVC film main body and the second PVC film main body are in compound bonding connection;
the elastic net sheet consists of a plurality of warp yarns which are equidistantly arranged and a plurality of weft yarns which are equidistantly arranged, and the warp yarns which are equidistantly arranged and the weft yarns which are equidistantly arranged are correspondingly interweaved and connected;
the first pressure welding films and the second pressure welding films are symmetrically provided with two groups, the two groups of the first pressure welding films and the second pressure welding films are symmetrically arranged at two ends of the elastic net piece respectively, and the first pressure welding films and the second pressure welding films corresponding to the single group are connected with the end heads of the elastic net piece in a hot melt pressure welding mode;
the first crimping film and the second crimping film are respectively bonded and connected with the first PVC film main body and the second PVC film main body.
Preferably, the overall dimensions of the first PVC film main body and the second PVC film main body are the same, the edge of the upper surface of the first PVC film main body and the edge of the lower surface of the second PVC film main body are respectively provided with convex teeth, the convex teeth are respectively integrated into one piece with the first PVC film main body and the second PVC film main body, and the edge of the upper surface of the first PVC film main body is respectively meshed with the convex teeth which are respectively arranged at the edge of the lower surface of the second PVC film main body.
Preferably, the first pressure-sensitive adhesive layer is coated at the joint of the convex teeth arranged at the edge of the upper surface of the first PVC film main body and the edge of the lower surface of the second PVC film main body.
Preferably, the lengths of the weft and warp constituting the elastic mesh are the same as the length and width of the first PVC film body, respectively.
Preferably, the surfaces of one sides of the first compression joint film and the second compression joint film, which correspond to the elastic net piece, are provided with anti-skid lines.
Preferably, the bonding parts of the first pressure-sensitive adhesive film and the second pressure-sensitive adhesive film and the first PVC film main body and the second PVC film main body are provided with second pressure-sensitive adhesive layers.
The technical scheme of the utility model has the following beneficial technical effects:
1. according to the utility model, two groups of first compression bonding films and second compression bonding films are matched and respectively subjected to hot melt compression bonding at two ends of an elastic net sheet, warp yarns and weft yarns forming the elastic net sheet are polyester monofilaments, so that the elastic net sheet has high overall strength and good elasticity, then the first PVC film main body and the second PVC film main body are compositely bonded together, the elastic net sheet is arranged between the first PVC film main body and the second PVC film main body, so that the whole film has good transverse and longitudinal tensile force resistance, and meanwhile, the whole film has good rebound resilience, and when the tensile force is overlarge, the rebound of the film can be ensured, the expansion of the film is prevented, and the normal use of the film is ensured.
2. According to the utility model, the convex teeth are arranged and matched with the first pressure-sensitive adhesive layer for use, so that the bonding area between the first PVC film main body and the second PVC film main body can be increased, and the bonding strength of the first PVC film main body and the second PVC film main body is further improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
fig. 3 is a schematic view of the elastic mesh structure of the present utility model.
Reference numerals:
1. a first PVC film body; 2. a second PVC film body; 3. an elastic mesh; 4. a first crimp film; 5. and a second crimp film.
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.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
example 1
As shown in fig. 1 to 3, the elastic PVC film according to the present utility model includes a first PVC film body 1, a second PVC film body 2 disposed on the first PVC film body 1, an elastic mesh sheet 3 disposed between the first PVC film body 1 and the second PVC film body 2, a first crimp film 4, and a second crimp film 5;
the first PVC film main body 1 and the second PVC film main body 2 are in compound bonding connection;
the elastic net sheet 3 consists of a plurality of warp yarns which are equidistantly arranged and a plurality of weft yarns which are equidistantly arranged, and the warp yarns which are equidistantly arranged and the weft yarns which are equidistantly arranged are correspondingly interweaved and connected;
two groups of first pressure welding films 4 and two groups of second pressure welding films 5 are symmetrically arranged, the two groups of first pressure welding films 4 and the two groups of second pressure welding films 5 are symmetrically arranged at two ends of the elastic net piece 3 respectively, and the first pressure welding films 4 and the second pressure welding films 5 corresponding to the single group are connected with the end of the elastic net piece 3 in a hot melting pressure welding mode;
the first crimping film 4 and the second crimping film 5 are respectively and adhesively connected with the first PVC film main body 1 and the second PVC film main body 2;
it should be noted that, through the cooperation of two sets of first crimping membrane 4 and second crimping membrane 5 respectively the hot melt crimping at the both ends of elastic mesh 3, moreover the warp silk and the weft silk that constitute elastic mesh 3 are polyester monofilament, make elastic mesh 3 bulk strength big, elasticity is good, then compound bonding together first PVC film main part 1 and second PVC film main part 2, place elastic mesh 3 between first PVC film main part 1 and second PVC film main part 2, make the film wholly have fine anti horizontal and vertically pulling force, make the film wholly have fine resilience simultaneously, when the pulling force is too big, also can guarantee the resilience of film, prevent that it from appearing extending, in order to guarantee normal use.
Example two
As shown in fig. 1 and 2, the external dimensions of the first PVC film body 1 and the second PVC film body 2 are the same, the edge of the upper surface of the first PVC film body 1 and the edge of the lower surface of the second PVC film body 2 are both provided with convex teeth, the convex teeth are respectively integrated with the first PVC film body 1 and the second PVC film body 2 into a whole, the convex teeth arranged at the edge of the upper surface of the first PVC film body 1 and the edge of the lower surface of the second PVC film body 2 are respectively engaged, and the joint of the convex teeth arranged at the edge of the upper surface of the first PVC film body 1 and the edge of the lower surface of the second PVC film body 2 is coated with a first pressure-sensitive adhesive layer;
it should be noted that, through setting up the dogtooth and cooperating the use of first pressure sensitive adhesive layer, can increase the bonding area between first PVC film main part 1 and the second PVC film main part 2, and then improve the bonding strength of first PVC film main part 1 and second PVC film main part 2.
Example III
As shown in fig. 1 and 3, lengths of a plurality of weft yarns and warp yarns forming the elastic net sheet 3 are respectively the same as the length and the width of the first PVC film main body 1, anti-slip lines are arranged on one side surfaces of the first pressure-sensitive adhesive film 4 and the second pressure-sensitive adhesive film 5 corresponding to the elastic net sheet 3, and a second pressure-sensitive adhesive layer is arranged at the bonding part of the first pressure-sensitive adhesive film 4 and the second pressure-sensitive adhesive film 5 and the first PVC film main body 1 and the second PVC film main body 2;
it should be noted that, the friction force between the first pressure welding film 4 and the second pressure welding film 5 and the end of the elastic net piece 3 is ensured, so as to ensure the bonding strength between the first pressure welding film 4 and the second pressure welding film 5 and the elastic net piece 3, and meanwhile, the elastic net piece 3, the first PVC film main body 1 and the second PVC film main body 2 can be composited together, thereby playing roles of stretching resistance and good rebound resilience.
The working principle and the using flow of the utility model are as follows: through the cooperation of two sets of first crimping membrane 4 and second crimping membrane 5 respectively hot melt crimping at the both ends of elastic mesh 3, moreover the warp silk and the weft silk that constitute elastic mesh 3 are polyester monofilament, make elastic mesh 3 bulk strength big, elasticity is good, then with first PVC film main part 1 and the compound bonding of second PVC film main part 2 together, place elastic mesh 3 between first PVC film main part 1 and the second PVC film main part 2, make the film wholly have fine anti horizontal and vertically pulling force, make the film wholly have fine resilience simultaneously, when the pulling force is too big, also can guarantee the resilience of film, prevent that it from appearing extending, in order to guarantee normal use.
It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (6)
1. An elastic PVC film is characterized by comprising a first PVC film main body (1), a second PVC film main body (2) arranged on the first PVC film main body (1), an elastic net piece (3) arranged between the first PVC film main body (1) and the second PVC film main body (2), a first compression joint film (4) and a second compression joint film (5);
the first PVC film main body (1) and the second PVC film main body (2) are in compound bonding connection;
the elastic net piece (3) consists of a plurality of warp yarns which are equidistantly arranged and a plurality of weft yarns which are equidistantly arranged, and the warp yarns which are equidistantly arranged and the weft yarns which are equidistantly arranged are correspondingly interweaved and connected;
two groups of first pressure welding films (4) and two groups of second pressure welding films (5) are symmetrically arranged, the two groups of first pressure welding films (4) and the two groups of second pressure welding films (5) are symmetrically arranged at two ends of the elastic net piece (3) respectively, and the first pressure welding films (4) and the second pressure welding films (5) corresponding to a single group are connected with the end of the elastic net piece (3) in a hot melting pressure welding mode;
the first pressure welding film (4) and the second pressure welding film (5) are respectively connected with the first PVC film main body (1) and the second PVC film main body (2) in an adhering mode.
2. An elastic PVC film according to claim 1, wherein the first PVC film body (1) and the second PVC film body (2) have the same external dimensions, the upper surface edge of the first PVC film body (1) and the lower surface edge of the second PVC film body (2) are provided with protruding teeth, and the protruding teeth are respectively integrated into one piece with the first PVC film body (1) and the second PVC film body (2), and the protruding teeth provided at the upper surface edge of the first PVC film body (1) and the lower surface edge of the second PVC film body (2) are respectively engaged.
3. An elastic PVC film according to claim 2, wherein the first pressure sensitive adhesive layer is applied to the junction of the teeth provided at the edge of the upper surface of the first PVC film body (1) and the edge of the lower surface of the second PVC film body (2).
4. An elastic PVC film according to claim 1, wherein the lengths of the plurality of weft and warp filaments constituting the elastic mesh (3) are the same as the length and width of the first PVC film body (1), respectively.
5. An elastic PVC film according to claim 1, wherein the first crimp film (4) and the second crimp film (5) are provided with anti-slip lines on the surfaces of the sides corresponding to the elastic net sheet (3).
6. An elastic PVC film according to claim 1, wherein the first pressure-sensitive adhesive layer is provided at the bonding site of the first pressure-sensitive adhesive film (4) and the second pressure-sensitive adhesive film (5) with the first PVC film body (1) and the second PVC film body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321048968.2U CN220535146U (en) | 2023-05-05 | 2023-05-05 | Elastic PVC film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321048968.2U CN220535146U (en) | 2023-05-05 | 2023-05-05 | Elastic PVC film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220535146U true CN220535146U (en) | 2024-02-27 |
Family
ID=89970721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321048968.2U Active CN220535146U (en) | 2023-05-05 | 2023-05-05 | Elastic PVC film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220535146U (en) |
-
2023
- 2023-05-05 CN CN202321048968.2U patent/CN220535146U/en active Active
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| GR01 | Patent grant |