CN205061955U - Protecting film for negative film - Google Patents
Protecting film for negative film Download PDFInfo
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- CN205061955U CN205061955U CN201520513295.2U CN201520513295U CN205061955U CN 205061955 U CN205061955 U CN 205061955U CN 201520513295 U CN201520513295 U CN 201520513295U CN 205061955 U CN205061955 U CN 205061955U
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Abstract
The utility model relates to a protection film relates to a protection film that is used for protecting figure film especially, include inoxidizing coating, substrate layer, the adhesive layer who stacks gradually from top to bottom and leave the type layer, the inoxidizing coating is acrylic acid ester class or polyurethanes stiffened coating, and is especial, acrylic acid ester class or the polyurethanes stiffened coating of inoxidizing coating for having the ultra -violet curing characteristic and adding conductive filler in. The utility model discloses there is following beneficial effect: adopt not siliceous acrylic acid ester class or polyurethanes stiffened coating, can effectively avoid silicon to pollute to reinforcing protecting effect, ultra -violet curing type acrylic acid ester class or polyurethanes stiffened coating is adopted, the bad change of product that leads to owing to hot work can be avoided, the adoption realizes antistatic function through the coating of adding conductive filler in adopting, can simplify the product structure, strengthen anti static electricity effect.
Description
Technical field
The present invention relates to a kind of protective membrane, particularly a kind of protective membrane for the protection of figure film egative film.
Background technology
In the manufacturing processed of printed circuit board (pcb), flexible PCB (FPC) etc., need to use figure film egative film in ectonexine Graphic transitions and green oil operation, in process of production, there is the artificial erosion with green oil solvent that scratches in egative film, thus reduces the work-ing life of egative film, the repairing rate of increase plate unavoidably.For improving this situation, current most producer takes the mode of pasting protective film to protect egative film.Meanwhile, in order to eliminate protecting film for negative film in use easily attract dust, the problem that causes process rate low, there is the protecting film for negative film with electrostatic-proof function.Chinese patent CN20398636U discloses a kind of anti-electrostatic protecting film for negative film; comprise the anti-stick coating, anti-static coating, PET base material layer, adhesive layer and the PET release film layer that stack gradually combination from top to bottom; wherein anti-glutinous coating is silicone oil coating; anti-static coating is anti-static liquid coating; this protecting film for negative film can not only protect film egative film effectively, and has electrostatic-proof function.But there is following defect in above-mentioned anti-electrostatic egative film:
1. protective membrane adopts silicone oil coating, easily causes silicon to pollute;
2. protective membrane adopts silicone oil coating, no matter be condensation due to organosilicon or add Chengdu to there is temperature of reaction higher, and its thermotolerance of PET base material layer thinner thickness is poor, and in coating after baking oven, material there will be the serious problem such as heat wrinkle, distortion;
3. anti-static liquid coating is arranged between silicone oil coating and PET base material layer, because silicone oil and PET all have higher insulativity under normal circumstances, therefore fully cannot realizes electrostatic-proof function;
4. use anti-static liquid coating, when selecting antistatic agent or Antistatic Paint, needing to consider and the many-side such as silicone oil coating and PET film surface bonding degree, anti-static effect, coating process, adding design cost, improve production difficulty.
Summary of the invention
In order to overcome the defect of prior art, the invention discloses a kind of protecting film for negative film.The present invention's adopted technical scheme that solves the problem is as follows.
A kind of protecting film for negative film of the present invention, comprises the protective layer, substrate layer, adhesive layer and the release layer that stack gradually from top to bottom, and described protective layer is that esters of acrylic acid or polyurethanes add hard coat.
Further, described protective layer is that ultraviolet curing type esters of acrylic acid or polyurethanes add hard coat.
Further, described protective layer adds the esters of acrylic acid of conductive filler material or polyurethanes adds hard coat in being.
Preferably, the thickness of described protective layer is 0.5 μm ~ 4 μm.
Preferably, described substrate layer is PET film layer.
Preferably, the thickness of described substrate layer is 4 μm ~ 8 μm.
Preferably, described adhesive layer is pressure-sensitive acrylate layer.
Preferably, the thickness of described adhesive layer is 4 μm ~ 8 μm.
Preferably, the thickness of described release layer is 10 μm ~ 75 μm.
The beneficial effect that the present invention can produce is as follows:
1. adopt not siliceous esters of acrylic acid or polyurethanes to add hard coat, can effectively avoid silicon to pollute, and strengthen protection effect;
2. adopt ultraviolet curing type esters of acrylic acid or polyurethanes to add hard coat, the product deterioration caused due to hot-work can be avoided;
3. adopting the coating by adding conductive filler material in adopting to realize anti-static function, product structure can be simplified, strengthen antistatic effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of protecting film for negative film of the present invention.
In described Fig. 1,1 is protective layer, and 2 is substrate layer, and 3 is adhesive layer, and 4 is release layer.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.In the description, same or analogous drawing reference numeral represents same or analogous parts.The explanation of following reference accompanying drawing to embodiment of the present invention is intended to make an explanation to overall utility model design of the present utility model, and not should be understood to any restriction of the present utility model.
Embodiment 1
A kind of protecting film for negative film of the present embodiment, as shown in Figure 1, comprise the protective layer 1, substrate layer 2, adhesive layer 3 and the release layer 4 that stack gradually from top to bottom, wherein protective layer 1 adds hard coat for esters of acrylic acid or polyurethanes.In the present embodiment, protective layer 1 selects the esters of acrylic acid with ultraviolet light polymerization characteristic or polyurethanes to add hard coat, as polyacrylic ester, epoxy acrylate, polyester acrylate, polyether acrylate, urethane acrylate etc. add hard coat; Substrate layer 2 selects thickness to be the PET film of 4 μm ~ 8 μm; Adhesive layer 3 selects thickness to be the pressure-sensitive acrylate of 4 μm ~ 8 μm; Release layer 4 selects thickness to be the non-silicon release film of 10 μm ~ 75 μm.In actual production, by a side coating binder layer 3 of substrate layer 2 and release layer 4 of fitting, below ten thousand grades in dustfree environment, the coating of blade coating coating method is adopted the another side of substrate layer 2 to have esters of acrylic acid or the polyurethanes hardening solution of ultraviolet light polymerization characteristic again, coating thickness 4 μm, solidify 10s in the ultraviolet curing device of isolating there being infrared glass, solidification energy is 400mJ/cm
2, namely obtain product.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, and difference is: in the present embodiment, and protective layer 1 adds esters of acrylic acid or the polyurethanes stiffening layer of conductive filler material in being.In the present embodiment, the conductive filler material added in protective layer 1 can select carbon black, metal oxide (as titanium oxide, zinc oxide, stannic oxide), metal-salt (as sodium salt, sylvite, lithium salts) etc.In actual production, by a side coating binder layer 3 of substrate layer 2 and release layer 4 of fitting, below ten thousand grades in dustfree environment, the coating of blade coating coating method is adopted the another side of substrate layer 2 to have in ultraviolet light polymerization characteristic the esters of acrylic acid or polyurethanes hardening solution that add and have conductive filler material again, coating thickness 0.5 μm, solidify 10s in the ultraviolet curing device of isolating there being infrared glass, solidification energy is 200mJ/cm
2, more namely obtain product.
Although describe the present invention by reference to the accompanying drawings, embodiment disclosed in accompanying drawing is intended to carry out exemplary illustration to the preferred embodiment for the present invention, and can not be interpreted as one restriction of the present utility model.Although the embodiment of general plotting of the present invention has been illustrated and has illustrated, those skilled in the art will appreciate that, when not deviating from principle and the spirit of the present invention's design, can make a change embodiment, scope of the present invention is with claim and their equivalents.
Claims (8)
1. a protecting film for negative film; comprise the protective layer, substrate layer, adhesive layer and the release layer that stack gradually from top to bottom; described protective layer is that esters of acrylic acid or polyurethanes add hard coat, it is characterized in that, described protective layer adds the esters of acrylic acid of conductive filler material in being or polyurethanes adds hard coat.
2. a kind of protecting film for negative film according to claim 1, is characterized in that, described protective layer is that ultraviolet curing type esters of acrylic acid or polyurethanes add hard coat.
3. a kind of protecting film for negative film according to claim 1, is characterized in that, the thickness of described protective layer is 0.5 μm ~ 4 μm.
4. a kind of protecting film for negative film according to claim 1, is characterized in that, described substrate layer is PET film layer.
5. a kind of protecting film for negative film according to claim 1, is characterized in that, the thickness of described substrate layer is 4 μm ~ 8 μm.
6. a kind of protecting film for negative film according to claim 1, is characterized in that, described adhesive layer is pressure-sensitive acrylate layer.
7. a kind of protecting film for negative film according to claim 1, is characterized in that, the thickness of described adhesive layer is 4 μm ~ 8 μm.
8. a kind of protecting film for negative film according to claim 1, is characterized in that, the thickness of described release layer is 10 μm ~ 75 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520513295.2U CN205061955U (en) | 2015-07-16 | 2015-07-16 | Protecting film for negative film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520513295.2U CN205061955U (en) | 2015-07-16 | 2015-07-16 | Protecting film for negative film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205061955U true CN205061955U (en) | 2016-03-02 |
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| CN201520513295.2U Active CN205061955U (en) | 2015-07-16 | 2015-07-16 | Protecting film for negative film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107093494A (en) * | 2017-03-22 | 2017-08-25 | 中山大学 | A kind of conducting membrane structure and its patterning method of transferable patterning |
| CN107236468A (en) * | 2016-12-19 | 2017-10-10 | 艾威尔电路（深圳）有限公司 | A kind of resin type liquid protective film and its preparation, application method |
| CN108610995A (en) * | 2016-12-29 | 2018-10-02 | 乐凯华光印刷科技有限公司 | A kind of PCB circuit board film protective film and preparation method thereof |
| WO2019010871A1 (en) * | 2017-07-11 | 2019-01-17 | 苏州城邦达力材料科技有限公司 | Photosensitive cover film and preparation method therefor, and photosensitive cover film product |
-
2015
- 2015-07-16 CN CN201520513295.2U patent/CN205061955U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107236468A (en) * | 2016-12-19 | 2017-10-10 | 艾威尔电路（深圳）有限公司 | A kind of resin type liquid protective film and its preparation, application method |
| CN107236468B (en) * | 2016-12-19 | 2020-03-31 | 艾威尔电路（深圳）有限公司 | Resin type liquid protective film and preparation and use methods thereof |
| CN108610995A (en) * | 2016-12-29 | 2018-10-02 | 乐凯华光印刷科技有限公司 | A kind of PCB circuit board film protective film and preparation method thereof |
| CN107093494A (en) * | 2017-03-22 | 2017-08-25 | 中山大学 | A kind of conducting membrane structure and its patterning method of transferable patterning |
| WO2019010871A1 (en) * | 2017-07-11 | 2019-01-17 | 苏州城邦达力材料科技有限公司 | Photosensitive cover film and preparation method therefor, and photosensitive cover film product |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213149 No. 20, Changyang Road, West Taihu science and Technology Industrial Park, Wujin District, Changzhou City, Jiangsu Province Patentee after: Xinlun electronic materials (Changzhou) Co.,Ltd. Address before: 213149 Changzhou City, Jiangsu Province No. 20 Changyang Road, West Taihu science and Technology Industrial Park, Wujin District, Changzhou City, Jiangsu Province Patentee before: Xinlun Technology (Changzhou) Co.,Ltd. |