CN217797026U - Anti-scraping wire drawing film device - Google Patents
Anti-scraping wire drawing film device Download PDFInfo
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- CN217797026U CN217797026U CN202221813374.1U CN202221813374U CN217797026U CN 217797026 U CN217797026 U CN 217797026U CN 202221813374 U CN202221813374 U CN 202221813374U CN 217797026 U CN217797026 U CN 217797026U
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Abstract
The utility model relates to a scratch-resistant wire-drawing film device, which comprises an unreeling part, a pre-coating part, a secondary curing part and a reeling part which are electrically connected in sequence; the pre-coating part comprises a laminating roller, a driven roller, a pre-curing part and a liquid tank; the laminating roller is connected with the driven roller by a transmission strip, and at least one bulge is arranged on the surface of the transmission strip. Utilize when anti-scraping wire drawing membrane device carries out the operation, production speed is fast, and is efficient, and the anti wire drawing membrane hardness of scraping that forms is high, and solidification layer surface has sunk structure, and anti scraping performance is excellent.
Description
Technical Field
The utility model relates to an anti wire drawing membrane technical field that scrapes especially relates to an anti wire drawing membrane that scrapes and device thereof.
Background
The preparation of the scratch-resistant wire-drawing film with excellent performance is the focus of research at present.
One of the preparation methods of the scratch-resistant wiredrawing film is to finish the preparation of the wiredrawing polyethylene terephthalate (PET) film on a wiredrawing machine, wherein a base material passes through between a pair of rollers of the wiredrawing machine, and wiredrawing textures are ground on the surface of the base material by virtue of lines on the surface of the pair of rollers to obtain the wiredrawing PET film. The method is mainly characterized in that the surface of the film is damaged by a mechanical friction method to form wiredrawing patterns and lines.
The disadvantages of this method are: first, mechanical abrasion destroys the structure of the substrate surface, reduces the strength of the substrate itself, and is prone to quality problems during later processing and use. Secondly, the wire drawing texture produced by the mechanical friction method can only be vertical wire drawing texture, namely the wire drawing direction can only be parallel to the advancing direction of the base material, and the transverse texture cannot be prepared, so that the application range in the later stage is restricted. And thirdly, the wire drawing film prepared by the conventional mechanical friction method has low fineness, rough and fuzzy texture and poor wire drawing effect.
The other preparation method of the scratch-resistant wire drawing film is that the scratch-resistant wire drawing film is prepared by an Ultraviolet (UV) imprinting process, wherein a layer of resin coating capable of being cured by UV is coated on the surface of a transparent film substrate, imprinting is carried out through a special roller film, and UV irradiation is carried out in the imprinting process to ensure that the coating is cured instantly.
CN107797379A discloses a method for preparing a wire drawing film by an ultraviolet light micro-nano imprinting technology, which is characterized in that ultraviolet light curing glue is cured on the surface of a PET substrate by ultraviolet light curing molding equipment to form a wire drawing structure film layer which is well combined with the PET substrate; the ultraviolet curing molding equipment comprises an uncoiling section, an ultraviolet embossing molding section and a coiling section; the ultraviolet light impression forming section comprises a wire drawing die plate roller, a left side supporting roller and a right side supporting roller which are arranged on two sides of the wire drawing die plate roller, and a UV glue supplying system and a UV lamp set. The disclosed process has no damage to the surface of the PET substrate, and the prepared PET wire drawing film has good post processing and use performance.
The limitations in the uv imprint process are, however, as follows:
(1) A special wire drawing mold roller is required to be used, and the mold roller has a complex processing technology and high cost; particularly, the transverse grain fine wire drawing is performed, the grain direction is vertical to the rotation direction of the printing roller, so that the roller cannot rotate during processing and only can be ground in a small area; the processing technology causes the processing cost of a single roller to be high, and the cost of the single roller reaches 30 ten thousand RMB.
(2) The spacing between the dense structures of the wire drawing structure lines is about 5-10 mu m, and the demoulding is difficult; particularly, the structure grain direction of the transverse grain wire drawing structure is vertical to the rotation direction of the plate roller, UV glue is difficult to strip from the plate roller, the residual UV glue in the microstructure of the plate roller can form a periodic defect, and the microstructure of the plate roller can be filled with UV resin after long-time use, so that the plate roller cannot be used.
The production efficiency is low and the speed is low no matter the production of a wire drawing machine or the ultraviolet imprinting process is adopted; the production speed of the common wire-drawing film is 10M/min, and if the production speed of the transverse-grain fine wire-drawing film is less than 5M/min. Too fast, air bubbles will form, and the transfer effect of the demoulding structure is poor.
In view of the above, it is important to develop an apparatus that facilitates the production of a scratch-resistant wiredrawn film.
SUMMERY OF THE UTILITY MODEL
To prior art not enough, an object of the utility model is to provide an anti wire drawing membrane of scraping and device, preparation method and application utilize the utility model when anti wire drawing membrane of scraping device carries out the operation, production speed is fast, and is efficient, and the anti wire drawing membrane hardness of scraping that forms is high, and solidification layer surface has sunk structure, and anti scraping performance is excellent.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a scratch-resistant wire-drawing film device, which comprises an unreeling part, a pre-coating part, a secondary curing part and a reeling part which are electrically connected in sequence;
the pre-coating part comprises a laminating roller, a driven roller, a pre-curing part and a liquid tank;
the laminating roller and driven roller are connected by a driving strip, and the surface of the driving strip is provided with at least one (for example, 2, 4, 6, 8, 10 and the like) bulge.
The utility model discloses in, the theory of operation of anti drawing of silk membrane device of scraping is: sending a base material from an unreeling device, pre-coating the pre-coating part, wherein during pre-coating, a transmission strip passes through a liquid tank, a bulge on the transmission strip is impregnated with the curing resin in the liquid tank under the action of a rubber belt roller, then the transmission strip is conveyed to the base material on the surface of an attaching roller, and under the action of two attaching rollers, the curing resin is transferred to the surface of the base material and is cured to form a pre-coating layer which corresponds to the bulge and contains a concave structure; and before entering a secondary curing part, adding curing resin on the surface of the precoating layer, carrying out secondary curing, and rolling to prepare the film with the concave scratch-resistant structure.
In the utility model, the anti-scraping wire drawing film device is simple, the convex surface of the transmission strip can be designed with transverse grains or longitudinal grains according to the needs, no special roller is needed, the cost is low, and the solidified resin forms a concave structure when the transmission strip provided with the convex surface is transferred, thereby being more beneficial to improving the anti-scraping performance of the film layer; in addition, the solidified resin is arranged in the liquid tank and then transferred to the surface of the base material through the transmission strip, so that the formed precoat can be formed firstly, and the transfer printing effect is good; the precoating part plays the role of a pre-filling structure, so that the production efficiency can be greatly improved, and the production speed is high. The film layer formed by the secondary curing part has high surface hardness and is not easy to scratch and damage.
Preferably, an auxiliary roller is arranged between the unwinding part and the pre-coating part.
Preferably, the pre-cured member is disposed on one side of the laminating roller.
Preferably, the laminating roller is a silica gel laminating roller.
Preferably, the applicator roll has a hardness of 30-40A, such as 32A, 34A, 36A, 38A, and the like.
Preferably, the pre-curing member comprises an electrodeless UV mercury lamp.
Preferably, the fluid bath comprises at least one rubberized roller.
Preferably, an auxiliary roller is disposed between the pre-coating part and the secondary curing part.
Preferably, an auxiliary roller is arranged between the secondary curing part and the winding part.
Illustratively, the method for preparing the anti-scratch drawn film by using the anti-scratch drawn film device comprises the following steps:
(1) Conveying the base material to a laminating roller of a pre-coating part through an unreeling part, starting the pre-coating part, transferring the curing resin arranged in a liquid tank to the surface of the base material contacted with the laminating roller through a transmission strip, and pre-curing through a pre-curing part to form a pre-coating layer;
(2) Setting curing resin on the surface of the precoating layer, and then completing secondary curing through a secondary curing part;
(3) And finishing rolling in a rolling device to obtain the scratch-resistant wiredrawing film.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) The device of the utility model does not need to process expensive wire drawing mould printing rollers; if the film surface is directly replaced after a defect is newly added, the replacement is finished within about 10min, and the device is high in standby efficiency, simple and easy to operate.
(2) Device production speed is fast, and the anti wire drawing membrane surface hardness of scraping of preparation is high, and solidification layer surface has sunk structure.
(3) The surface hardness of the anti-scraping wire drawing film formed by the device is more than 4H, and the production speed is more than 30M/min.
Drawings
Fig. 1 is a schematic structural view of the anti-scraping wire-drawing film device of the present invention.
1-an unwinding part; 21-a laminating roller; 22-a driven roller; 23-a drive bar; 24-a liquid bath; 241-carrying rubber rollers; 25-precuring; 3-secondary curing the part; 4-rolling the component.
Detailed Description
To facilitate understanding of the present invention, the present invention has the following embodiments. It should be understood by those skilled in the art that the described embodiments are merely provided to assist in understanding the present invention and should not be construed as specifically limiting the present invention.
The utility model provides a scratch-resistant wire-drawing film device, which comprises an unreeling part, a pre-coating part, a secondary curing part and a reeling part which are electrically connected in sequence;
the pre-coating part comprises a laminating roller, a driven roller, a pre-curing part and a liquid tank;
the laminating roller and driven roller are connected by a driving strip, and the surface of the driving strip is provided with at least one (for example, 2, 4, 6, 8, 10 and the like) bulge.
The utility model discloses in, the theory of operation of anti drawing membrane device of scraping is: sending a base material from an unreeling device, pre-coating the pre-coating part, wherein during pre-coating, a transmission strip passes through a liquid tank, a bulge on the transmission strip is impregnated with the curing resin in the liquid tank under the action of a rubber belt roller, then the transmission strip is conveyed to the base material on the surface of an attaching roller, and under the action of two attaching rollers, the curing resin is transferred to the surface of the base material and is cured to form a pre-coating layer which corresponds to the bulge and contains a concave structure; and before entering a secondary curing part, supplementing curing resin on the surface of the precoating layer, performing secondary curing, and rolling to prepare the film with the concave scratch-resistant structure.
In the utility model, the anti-scraping wire drawing film device is simple, the convex surface of the transmission strip can be designed with transverse grains or longitudinal grains according to the needs, no special roller is needed, the cost is low, and the solidified resin forms a concave structure when the transmission strip provided with the convex surface is transferred, thereby being more beneficial to improving the anti-scraping performance of the film layer; in addition, the solidified resin is arranged in the liquid tank and then transferred to the surface of the base material through the transmission strip, so that the formed precoat can be formed firstly, and the transfer printing effect is good; the precoating part plays the role of a pre-filling structure, so that the production efficiency can be greatly improved, and the production speed is high. The film layer formed by the secondary curing part has high surface hardness and is not easy to scratch and damage.
Exemplarily, an auxiliary roller is disposed between the unwinding part and the pre-coating part.
Illustratively, the pre-cured member is disposed on one side of the laminating roller.
Illustratively, the laminating roller is a silicone laminating roller.
Illustratively, the conformable roller has a hardness of 30-40A, such as 32A, 34A, 36A, 38A, and the like.
Illustratively, the pre-cure includes an electrodeless UV mercury lamp.
Illustratively, the fluid bath comprises at least one rubberized roller.
Illustratively, an auxiliary roller is disposed between the pre-coating member and the secondary curing member.
Exemplarily, an auxiliary roller is arranged between the secondary curing part and the winding part.
Illustratively, the method for preparing the anti-scratch drawn film by using the anti-scratch drawn film device comprises the following steps:
(1) Conveying the base material to a laminating roller of a pre-coating part through an unreeling part, starting the pre-coating part, transferring the cured resin arranged in a liquid tank to the surface of the base material contacted with the laminating roller through a transmission strip, and then pre-curing through a pre-curing part to form a pre-coating layer;
(2) Setting curing resin on the surface of the precoating layer, and then completing secondary curing through a secondary curing part;
(3) And finishing rolling in a rolling device to obtain the scratch-resistant wiredrawing film.
Example 1
The embodiment provides a scratch-resistant wire-drawing film device, a structural schematic diagram of which is shown in fig. 1, wherein the scratch-resistant wire-drawing film device comprises an unwinding part 1, a pre-coating part, a secondary curing part 3 and a winding part 4 which are electrically connected in sequence;
the pre-coating part comprises a gluing roller 21, a driven roller 22, a pre-curing part 25 and a liquid tank 24;
the laminating roller is connected by drive strip 23 with the driven voller, the drive strip surface is provided with the arch.
The liquid bath comprises 2 rubber-covered rollers 241.
An auxiliary roller is arranged between the unreeling part and the pre-coating part.
The pre-curing piece is arranged on one side of the laminating roller.
The laminating roller is a silica gel laminating roller, and the hardness is 35A.
The pre-curing member comprises an electrodeless UV mercury lamp.
And auxiliary rollers are arranged between the pre-coating part and the secondary curing part and between the secondary curing part and the winding part.
The embodiment provides a preparation method for preparing a scratch-resistant drawn film by using the scratch-resistant drawn film device, and the preparation method comprises the following steps:
(1) Transferring a substrate (made of polyethylene terephthalate (SKC) with a mark of V7610) to a laminating roller of a pre-coating part via an unreeling part, starting the pre-coating part, transferring a curing resin (acrylic acid ultraviolet liquid resin with a mark of QUNTOP of 4908) arranged in a liquid tank to the surface of the substrate contacted with the laminating roller via a transmission strip, and pre-curing the substrate with ultraviolet wavelength of 365nm and energy of 30mj/cm 2 Pre-curing under the condition of (1) to form a pre-coating layer;
(2) Setting a curing resin on the surface of the precoat layer, and passing through a secondary curing part at an ultraviolet wavelength of 385nm and an energy of 300mj/cm 2 Under the condition (2), completing secondary curing to form a cured layer with the thickness of 200 μm;
(3) And finishing rolling in a rolling device to obtain the scratch-resistant wiredrawing film.
Comparative example 1
This comparative example differs from example 1 in that the production of a scratch-resistant drawn film was carried out on a wire drawing machine.
The scratch-resistant wiredrawing film is prepared by the following method, and the preparation method comprises the following steps:
and (3) utilizing the double rollers of the wire drawing machine, enabling the base material to pass through between the double rollers, and grinding the wire drawing texture on the surface of the base material by means of the lines on the surfaces of the double rollers to obtain the wire drawing PET film.
Comparative example 2
This comparative example differs from example 1 in that a scratch-resistant drawn film was produced by means of a uv-embossing apparatus.
The scratch-resistant wiredrawing film is prepared by the following method, and the preparation method comprises the following steps:
coating a layer of cured resin on the surface of the base material, carrying out imprinting through the roller mold described in CN107797379A, and carrying out UV irradiation in the imprinting process to instantly cure the resin to form a cured layer so as to obtain the scratch-resistant wiredrawing film.
Performance testing
The scratch-resistant wiredrawn films described in example 1 and comparative examples 1-2 were tested as follows:
(1) Surface hardness: ASTM D3363 Pencil hardness tester, load 250g;
the test requirements are as follows: the sliding direction of the pencil is vertical to the direction of the material structure, and the pencil and the test sample form an included angle of 45 degrees;
and (3) judging standard: visually, the next gradient pencil hardness test was entered without scratching the prism layer until the scratch recorded its pencil hardness.
(2) The production speed is as follows: actual rotation speed of the machine, unit M/min.
The test results are summarized in table 1.
TABLE 1
| Surface hardness (H) | Production speed (M/min) | |
| Example 1 | 4 | 35 |
| Comparative example 1 | 2 | 8 |
| Comparative example 2 | 1 | 10 |
As can be seen from the analysis of the data in Table 1, the surface hardness of the anti-scraping wire-drawing film formed by the device of the invention is more than 4H, and the production speed is more than 35M/min. The device of the utility model does not need to process expensive wire drawing mould printing rollers; if the film surface is newly added with defects, the film is directly replaced, the replacement is finished in about 10min, and the device is high in standby efficiency, simple and easy to operate; the device production speed is fast, and the anti wire drawing membrane surface hardness of scraping of preparation is high.
As is clear from the analysis of comparative examples 1-2 and example 1, comparative examples 1-2 are inferior in performance to example 1, and it is demonstrated that the apparatus of the present invention is more advantageous to simply, rapidly and inexpensively produce a scratch-resistant wire-drawing film excellent in performance than the apparatus or method of the prior art.
The applicant states that the present invention is described in detail by the above embodiments, but the present invention is not limited to the above detailed method, i.e. the present invention is not meant to be implemented by relying on the above detailed method. It should be clear to the skilled person in the technical field that any improvement to the utility model discloses, to the equivalent replacement of each raw materials of the utility model and the interpolation of auxiliary component, the selection of concrete mode etc. all fall within the scope of protection and the scope of disclosure of the utility model.
Claims (9)
1. The anti-scraping wire-drawing film device is characterized by comprising an unreeling part, a pre-coating part, a secondary curing part and a reeling part which are sequentially and electrically connected;
the pre-coating part comprises a laminating roller, a driven roller, a pre-curing part and a liquid tank;
the laminating roller is connected with the driven roller by a transmission strip, and at least one bulge is arranged on the surface of the transmission strip.
2. The anti-scratch draw film apparatus according to claim 1, wherein an auxiliary roller is disposed between the unwinding part and the pre-coating part.
3. The anti-doctor draw film apparatus according to claim 1, wherein the pre-cured member is disposed on a side of the conformable roller.
4. The anti-scratch draw film apparatus of claim 1, wherein the conformable roller is a silicone conformable roller.
5. The anti-scratch draw film apparatus of claim 1, wherein the conformable roller has a hardness of 30-40A.
6. The scratch-resistant wire-drawing film apparatus of claim 1, wherein the pre-cure piece comprises an electrodeless UV mercury lamp.
7. The anti-scratch draw film apparatus of claim 1, wherein the fluid bath comprises at least one rubberized roller.
8. The anti-doctor draw film apparatus according to claim 1, wherein an auxiliary roller is provided between the pre-coating member and the secondary curing member.
9. The scratch-resistant wiredrawing film apparatus according to claim 1, wherein an auxiliary roller is disposed between the secondary curing part and the take-up part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221813374.1U CN217797026U (en) | 2022-07-13 | 2022-07-13 | Anti-scraping wire drawing film device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221813374.1U CN217797026U (en) | 2022-07-13 | 2022-07-13 | Anti-scraping wire drawing film device |
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| CN217797026U true CN217797026U (en) | 2022-11-15 |
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| CN202221813374.1U Active CN217797026U (en) | 2022-07-13 | 2022-07-13 | Anti-scraping wire drawing film device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024012075A1 (en) * | 2022-07-13 | 2024-01-18 | 凯鑫森(上海)功能性薄膜产业股份有限公司 | Scratch-resistant wire drawing film, apparatus therefor, preparation method therefor, and use thereof |
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2022
- 2022-07-13 CN CN202221813374.1U patent/CN217797026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024012075A1 (en) * | 2022-07-13 | 2024-01-18 | 凯鑫森(上海)功能性薄膜产业股份有限公司 | Scratch-resistant wire drawing film, apparatus therefor, preparation method therefor, and use thereof |
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