CN221315420U - Polyester film - Google Patents
Polyester film Download PDFInfo
- Publication number
- CN221315420U CN221315420U CN202323301217.XU CN202323301217U CN221315420U CN 221315420 U CN221315420 U CN 221315420U CN 202323301217 U CN202323301217 U CN 202323301217U CN 221315420 U CN221315420 U CN 221315420U
- Authority
- CN
- China
- Prior art keywords
- polyester film
- layer surface
- raised strips
- torn
- tear
- 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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- 229920006267 polyester film Polymers 0.000 title claims abstract description 94
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- WRDNCFQZLUCIRH-UHFFFAOYSA-N 4-(7-azabicyclo[2.2.1]hepta-1,3,5-triene-7-carbonyl)benzamide Chemical compound C1=CC(C(=O)N)=CC=C1C(=O)N1C2=CC=C1C=C2 WRDNCFQZLUCIRH-UHFFFAOYSA-N 0.000 claims description 3
- 238000003490 calendering Methods 0.000 claims description 3
- -1 polyethylene terephthalate Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 abstract description 5
- 239000002985 plastic film Substances 0.000 abstract description 2
- 229920006255 plastic film Polymers 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 35
- 239000004576 sand Substances 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 239000005041 Mylar™ Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000181 anti-adherent effect Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
Abstract
The utility model discloses a polyester film, which is applied to the technical field of plastic films, and is convenient to tear the polyester film into a parallel tear by tearing from a thinner part between two raised strips, and the tear is easy to split along with a thinner transverse position between the two raised strips due to thicker raised strip parts on two sides, so that the polyester film is convenient to use in practice; after the polyester film coated on the surface of the object is torn off, the light is used for irradiating the position of the object coated by the polyester film, so that the fluorescent agent generates a bright point, and therefore whether the polyester film of the object is torn off or not can be distinguished by looking at whether the surface of the object has a bright point or not, the polyester film is prevented from remaining on the surface of the object, and the use of the object is affected.
Description
Technical Field
The utility model belongs to the technical field of plastic films, and particularly relates to a polyester film.
Background
The polyester film is a film material which is prepared by taking polyethylene glycol terephthalate as a raw material, adopting an extrusion method to prepare a thick sheet and then adopting biaxial stretching, is widely used for glass fiber reinforced plastic industry, building material industry, printing industry and medical sanitation, is commonly used as an outer layer material of a steaming package, and has good printability.
Currently, the publication number is: CN205800388U discloses a polyester film, comprising a first antistatic layer, a glass fiber layer, a polycarbonate layer, a PEN polyester anti-adhesive layer and a second antistatic layer which are connected in sequence, wherein the thickness of the first antistatic layer is 0.1-0.3 μm, the thickness of the glass fiber layer is 0.2-2 μm, the thickness of the polycarbonate layer is 1-3 μm, the thickness of the PEN polyester anti-adhesive layer is 1-3 μm, and the thickness of the second antistatic layer is 0.1-0.3 μm. The polyester film provided by the utility model has higher stiffness, certain thermal stability and good smoothness, effectively improves the aluminum plating production efficiency of downstream clients, effectively eliminates a large amount of static electricity between film surfaces, and obviously reduces the probability of aluminum plating film breakage of the downstream clients.
The existing polyester film is longitudinally biaxially stretched, so that the fiber structures in the polyester film are also longitudinally distributed, however, the polyester film is required to be transversely separated in daily use, and under the condition that a cutting tool is not used, the polyester film is easily torn by hands to generate longitudinal cracks, so that the polyester film is difficult to tear into a parallel tear, and the polyester film is inconvenient to use in practice; meanwhile, as the part of the existing polyester film is transparent, after the polyester film coated on the surface of other objects is torn off, part of the polyester film still can be adhered to the objects, and as the polyester film is transparent, when the polyester film adhered to the objects is smaller, the polyester film is difficult to find visually, and therefore the polyester film can be always left on the surfaces of the objects, and the normal use of the objects can be influenced.
Disclosure of utility model
The utility model aims to provide a polyester film, which has the advantages of being convenient for tearing the polyester film into a level tearing port and preventing the polyester film from remaining on the surface of an object.
The technical aim of the utility model is realized by the following technical scheme: the polyester film comprises a polyester film substrate, wherein convex strips are fixedly connected to the upper layer surface and the lower layer surface of the polyester film substrate through calendaring, and the convex strips are transversely pressed on the upper layer surface and the lower layer surface of the polyester film substrate; the upper layer surface and the lower layer surface of the polyester film substrate are respectively provided with a circular concave point arranged between two convex strips, and fluorescent agents are filled in the circular concave points.
By adopting the technical scheme, the two convex strips are torn from a thinner place, and the two convex strips are thicker in parts, so that the tearing opening is easy to split along with a thinner transverse position between the two convex strips, and the polyester film is convenient to tear into a parallel and level tearing opening, so that the polyester film is convenient to use in practice; after the polyester film coated on the surface of the object is torn off, the light is used for irradiating the position of the object coated by the polyester film, so that the fluorescent agent generates a bright point, and therefore whether the polyester film of the object is torn off or not can be distinguished by looking at whether the surface of the object has a bright point or not, the polyester film is prevented from remaining on the surface of the object, and the use of the object is affected.
The utility model is further provided with: the thickness of the polyester film substrate is 12um.
By adopting the technical scheme, the polyester film has higher strength, and the risk of puncture is reduced.
The utility model is further provided with: the upper layer surface and the lower layer surface of the polyester film substrate are coated with heat-resistant layers covering the raised strips, and the heat-resistant layers are made of poly-p-phenylene terephthalamide.
By adopting the technical scheme, the heat resistance of the polyester film is further improved.
The utility model is further provided with: the inside fixedly connected with fibrous layer of polyester film substrate, the fibrous layer is glass fiber.
By adopting the technical scheme, the toughness of the inside of the polyester film is improved, and the deformation risk is reduced.
The utility model is further provided with: the polyester film base material and the raised strips are made of polyethylene terephthalate.
By adopting the technical scheme, the polyester film has excellent physical and mechanical properties and electrical insulation.
In summary, the utility model has the following beneficial effects:
1. The polyester film is conveniently torn into a parallel tear by tearing from a thinner place between the two raised strips, and the tear is easy to follow the thinner transverse position between the two raised strips because the raised strip parts on the two sides are thicker;
2. After the polyester film coated on the surface of the object is torn off, the light is used for irradiating the position of the object coated by the polyester film, so that the fluorescent agent generates a bright point, and therefore whether the polyester film of the object is torn off or not can be distinguished by looking at whether the surface of the object has a bright point or not, the polyester film is prevented from remaining on the surface of the object, and the use of the object is affected.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
Fig. 2 is a side sectional view of the present utility model.
Reference numerals: 1. a polyester film substrate; 2. a convex strip; 3. a fluorescent agent; 4. a fibrous layer; 5. and a heat-resistant layer.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Example 1:
Referring to fig. 1 and 2, a polyester film comprises a polyester film substrate 1, wherein convex strips 2 are fixedly connected to the upper layer surface and the lower layer surface of the polyester film substrate 1 through calendaring, and the convex strips 2 are transversely pressed on the upper layer surface and the lower layer surface of the polyester film substrate 1; through tearing from thinner place between two sand grip 2, owing to the both sides sand grip 2 positions are thicker, so tear the mouth and follow thinner horizontal position between two sand grip 2 and carry out cracked setting easily to be convenient for tear into the tearing mouth of parallel and level with the polyester film, be convenient for in-service use.
Referring to fig. 2, the thickness of the mylar substrate 1 is 12um, which gives the mylar a higher strength, reducing the risk of puncture.
Referring to fig. 2, the upper layer and the lower layer of the polyester film substrate 1 are coated with heat-resistant layers 5 covering the raised strips 2, and the heat-resistant layers 5 are made of poly-p-phenylene terephthalamide, so that the heat resistance of the polyester film is further improved.
The use process is briefly described: after the polyester film substrate 1 is made into a film through biaxial stretching, then the raised strips 2 are transversely pressed on the upper surface and the lower surface, so that the upper surface and the lower surface of the polyester film substrate 1 are transversely corrugated, when a polyester film needs to be torn, the polyester film is torn from a thinner place between the two raised strips 2, and the tear is easy to split along with the thinner transverse position between the two raised strips 2 due to thicker positions of the raised strips 2 on the two sides, so that the polyester film can be torn and leveled.
Example 2:
Referring to fig. 1 and 2, a polyester film is provided, wherein the upper layer and the lower layer of a polyester film substrate 1 are provided with circular pits arranged between two raised strips 2, and fluorescent agent 3 is filled in the circular pits; after the polyester film coated on the surface of the object is torn off, the light is used for irradiating the position of the object coated by the polyester film, so that the fluorescent agent 3 generates a bright point, and therefore whether the polyester film of the object is torn off or not can be distinguished by looking at whether the bright point exists on the surface of the object, the polyester film is prevented from remaining on the surface of the object, and the use of the object is affected.
Referring to fig. 2, a fiber layer 4 is fixedly connected to the inside of the polyester film substrate 1, the fiber layer 4 is made of glass fibers, the toughness of the inside of the polyester film is improved, and the deformation risk is reduced.
Referring to fig. 2, the polyester film base material 1 and the convex strips 2 are made of polyethylene terephthalate, so that the polyester film has excellent physical and mechanical properties and electrical insulation.
The use process is briefly described: circular pits are formed in the upper surface and the lower surface of the polyester film base material 1, fluorescent agent 3 is filled in the pits, so that after the polyester film coated on the surface of an object is torn off, the fluorescent agent 3 generates bright spots by irradiating the position of the object coated by the polyester film with lamplight, and therefore whether the object polyester film is torn off or not can be distinguished by looking at the surface of the object, and the polyester film is prevented from being left on the surface of the object.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Claims (5)
1. A polyester film comprising a polyester film substrate (1), characterized in that: the upper layer surface and the lower layer surface of the polyester film substrate (1) are fixedly connected with raised strips (2) through calendaring, and the raised strips (2) are transversely pressed on the upper layer surface and the lower layer surface of the polyester film substrate (1); the upper layer surface and the lower layer surface of the polyester film base material (1) are provided with round pits arranged between the two raised strips (2), and fluorescent agent (3) is filled in the round pits.
2. A polyester film according to claim 1, wherein: the thickness of the polyester film base material (1) is 12um.
3. A polyester film according to claim 1, wherein: the upper layer surface and the lower layer surface of the polyester film base material (1) are coated with heat-resistant layers (5) for covering the raised strips (2), and the heat-resistant layers (5) are made of poly-p-phenylene terephthalamide.
4. A polyester film according to claim 1, wherein: the inside of the polyester film substrate (1) is fixedly connected with a fiber layer (4), and the fiber layer (4) is glass fiber.
5. A polyester film according to claim 1, wherein: the polyester film base material (1) and the raised strips (2) are made of polyethylene terephthalate.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221315420U true CN221315420U (en) | 2024-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |