CN111491406A - Production process of electrothermal film - Google Patents
Production process of electrothermal film Download PDFInfo
- Publication number
- CN111491406A CN111491406A CN202010485251.9A CN202010485251A CN111491406A CN 111491406 A CN111491406 A CN 111491406A CN 202010485251 A CN202010485251 A CN 202010485251A CN 111491406 A CN111491406 A CN 111491406A
- Authority
- CN
- China
- Prior art keywords
- polyester film
- copper strip
- film layer
- layer
- conductive copper
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
- B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/202—Conductive
Abstract
A production process of an electrothermal film comprises an upper polyester film layer, an upper conductive copper strip, an upper conductive paper layer, a middle polyester film layer, a lower conductive copper strip, a lower conductive paper layer and a lower polyester film layer; the upper polyester film layer and the lower polyester film layer are polyester films with single surfaces coated with hot melt adhesive, the hot melt adhesive surfaces of the polyester films are downward and upward respectively, the middle polyester film layer is a polyester film with double surfaces coated with hot melt adhesive, the upper conductive copper strip and the lower conductive copper strip are double-conductive self-adhesive copper foils, the adhesive surfaces of the upper conductive copper strip and the lower conductive copper strip are respectively attached to the upper conductive paper layer and the lower conductive paper layer, and after all the layers are combined, a hot-pressing film covering machine is used for.
Description
Technical Field
The invention relates to the field of electric floor heating, in particular to a production process of an electrothermal film.
Background
In an electric floor heating product system, an electric heating film is taken as a heating element, and the existing electric heating film product adopts a process of coating a first conducting layer on a polyester film, then coating an adhesive layer, then coating another polyester film for adhesion, and then repeatedly making a second conducting layer.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an electrothermal film production process, which consists of an upper polyester film layer, an upper conductive copper strip, an upper conductive paper layer, a middle polyester film layer, a lower conductive copper strip, a lower conductive paper layer and a lower polyester film layer; the upper polyester film layer and the lower polyester film layer are polyester films with single surfaces coated with hot melt adhesive, the hot melt adhesive surfaces of the polyester films are downward and upward respectively, the middle polyester film layer is a polyester film with double surfaces coated with hot melt adhesive, the upper conductive copper strip and the lower conductive copper strip are double-conductive self-adhesive copper foils, the gluing surfaces of the upper conductive copper strip and the lower conductive copper strip are respectively attached to the upper conductive paper layer and the lower conductive paper layer, and after all the layers are combined, a hot-pressing film laminating machine is used for; the sizes of the upper polyester film layer, the middle polyester film layer and the lower polyester film layer are the same, and the lengths and the widths of the upper conductive paper layer and the lower conductive paper layer are 50mm smaller than those of the polyester film layer, so that a circle of sealing strip with the width of 25mm is reserved on four sides of the electrothermal film after hot press molding; the thickness of the polyester film in the upper polyester film layer, the middle polyester film layer and the lower polyester film layer is 0.07-0.14 mm, and the thickness of the hot melt adhesive is 0.03-0.05 mm; the thickness of the copper foil in the upper conductive copper strip and the lower conductive copper strip is 0.1-0.15 mm, the width of the copper foil is 10-20 mm, and the thickness of the conductive self-adhesive is 0.05 mm; the upper conductive copper strip and the lower conductive copper strip are respectively provided with two strips, the two ends of the upper conductive paper layer and the two ends of the lower conductive paper layer are respectively pasted to be used as conductive electrodes, and the width of the upper conductive paper layer is shorter than that of the lower conductive paper layer by two conductive copper strips, so that the upper conductive copper strip and the lower conductive copper strip are staggered in the horizontal direction and are used as positions for welding leads.
The parts of the polyester film layer, the conductive paper layer and the conductive copper strip adopted by the invention are all market products, and the polyester film layer, the conductive paper layer and the conductive copper strip are combined and then are subjected to one-time or two-time hot press forming, so that the process is simple, the quality is reliable, and the polyester film layer, the conductive paper layer and the conductive copper strip have obvious technical and economic.
Drawings
FIG. 1 is a schematic diagram of the combination of layers of an electrothermal film.
Detailed Description
The invention relates to a production process of an electrothermal film, which consists of an upper polyester film layer 1, an upper conductive copper strip 2, an upper conductive paper layer 3, a middle polyester film layer 4, a lower conductive copper strip 5, a lower conductive paper layer 6 and a lower polyester film layer 7; the upper polyester film layer 1 and the lower polyester film layer 7 are polyester films with single surfaces coated with hot melt adhesive, the glue coating surfaces of the polyester films are downward and upward respectively, the middle polyester film layer 4 is a polyester film with double surfaces coated with hot melt adhesive, the upper conductive copper strip 2 and the lower conductive copper strip 5 are double-conductive self-adhesive copper foils, the glue coating surfaces of the polyester films are respectively attached to the upper conductive paper layer 3 and the lower conductive paper layer 6, and after all the layers are combined, a hot-pressing film laminating machine is used for primary or secondary press-forming; the sizes of the upper polyester film layer 1, the middle polyester film layer 4 and the lower polyester film layer 7 are the same, and the lengths and the widths of the upper conductive paper layer 3 and the lower conductive paper layer 6 are 50mm smaller than those of the polyester film layers, so that a circle of sealing strip with the width of 25mm is reserved on four sides of the electrothermal film after hot press forming; the thickness of the polyester film in the upper polyester film layer 1, the middle polyester film layer 4 and the lower polyester film layer 7 is 0.07-0.14 mm, and the thickness of the hot melt adhesive is 0.03-0.05 mm; the thickness of the copper foil in the upper conductive copper strip 2 and the lower conductive copper strip 5 is 0.1-0.15 mm, the width is 10-20 mm, and the thickness of the conductive self-adhesive is 0.05 mm; the upper conductive copper strip 2 and the lower conductive copper strip 5 are respectively provided with two strips, two ends of the upper conductive paper layer 3 and two ends of the lower conductive paper layer 6 are respectively pasted to be used as conductive electrodes, and the width of the upper conductive paper layer 3 is shorter than that of the lower conductive paper layer 5 by two conductive copper strips, so that the upper conductive copper strip and the lower conductive copper strip are staggered in the horizontal direction and are used as positions for welding leads.
The invention adopts standard market product elements as the parts of the electrothermal film, and the combined parts are formed by hot pressing once or twice, so the production process is simple and convenient, the quality is reliable, and the invention has obvious technical and economic effects.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention shall be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such changes and modifications that fall within the scope and bounds of the appended claims, or equivalents of such scope and bounds.
Claims (5)
1. The electrothermal film production process consists of an upper polyester film layer, an upper conductive copper strip, an upper conductive paper layer, a middle polyester film layer, a lower conductive copper strip, a lower conductive paper layer and a lower polyester film layer, and is characterized in that: the upper polyester film layer and the lower polyester film layer are polyester films with single surfaces coated with hot melt adhesive, the hot melt adhesive surfaces of the polyester films are downward and upward respectively, the middle polyester film layer is a polyester film with double surfaces coated with hot melt adhesive, the upper conductive copper strip and the lower conductive copper strip are double-conductive self-adhesive copper foils, the adhesive surfaces of the upper conductive copper strip and the lower conductive copper strip are respectively attached to the upper conductive paper layer and the lower conductive paper layer, and after all the layers are combined, a hot-pressing film covering machine is used for.
2. The process of claim 1, wherein the step of heating comprises: the sizes of the upper polyester film layer, the middle polyester film layer and the lower polyester film layer are the same, and the length and the width of the upper conductive paper layer and the lower conductive paper layer are 50mm smaller than those of the polyester film layer, so that a circle of sealing strip with the width of 25mm is reserved on the four sides of the electric heating film after hot press forming.
3. The process of claim 1, wherein the step of heating comprises: the thickness of the polyester film in the upper polyester film layer, the middle polyester film layer and the lower polyester film layer is 0.07-0.14 mm, and the thickness of the hot melt adhesive is 0.03-0.05 mm.
4. The process of claim 1, wherein the step of heating comprises: the thickness of the copper foil of the upper conductive copper strip and the lower conductive copper strip is 0.1-0.15 mm, the width of the copper foil is 10-20 mm, and the thickness of the conductive self-adhesive is 0.05 mm.
5. The process of claim 1, wherein the step of heating comprises: the upper conductive copper strip and the lower conductive copper strip are respectively provided with two strips, the two ends of the upper conductive paper layer and the two ends of the lower conductive paper layer are respectively pasted to be used as conductive electrodes, and the width of the upper conductive paper layer is shorter than that of the lower conductive paper layer by two conductive copper strips, so that the upper conductive copper strip and the lower conductive copper strip are staggered in the horizontal direction and are used as positions for welding leads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010485251.9A CN111491406A (en) | 2020-06-01 | 2020-06-01 | Production process of electrothermal film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010485251.9A CN111491406A (en) | 2020-06-01 | 2020-06-01 | Production process of electrothermal film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111491406A true CN111491406A (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010485251.9A Pending CN111491406A (en) | 2020-06-01 | 2020-06-01 | Production process of electrothermal film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111491406A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622719A (en) * | 2021-01-28 | 2021-04-09 | 德阳烯碳科技有限公司 | Preparation method of heating pad of surface heating automobile seat |
-
2020
- 2020-06-01 CN CN202010485251.9A patent/CN111491406A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622719A (en) * | 2021-01-28 | 2021-04-09 | 德阳烯碳科技有限公司 | Preparation method of heating pad of surface heating automobile seat |
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