CN201962236U - Black mulching film - Google Patents
Black mulching film Download PDFInfo
- Publication number
- CN201962236U CN201962236U CN2011200965162U CN201120096516U CN201962236U CN 201962236 U CN201962236 U CN 201962236U CN 2011200965162 U CN2011200965162 U CN 2011200965162U CN 201120096516 U CN201120096516 U CN 201120096516U CN 201962236 U CN201962236 U CN 201962236U
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- black
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Abstract
The utility model relates to a black mulching film, which comprises a black insulating base film, a black insulating glue layer arranged on the black insulating base film, and release paper or a release film arranged on the black insulating glue layer. Compared with the black mulching film produced by the traditional process, in the black mulching film disclosed by the utility model, the requirement on the blackness of a PI (Polyimide) film is reduced, so that the surface insulating performance is better ensured; the production difficulty is reduced, and thus the black mulching film can be produced to be thinner; the requirement on the blackness of the insulating glue layer is reduced, so that the insulating glue layer is easier to achieve the requirement; and in addition, the black mulching film has remarkable advantages of blackness control, processability, reliability, price and basic performance as well as excellent blackness and shielding force, and the application performance can be better ensured.
Description
Technical field
The utility model relates to a kind of mulch film, relates in particular to a kind of black mulch film that is used for flexible printed wiring board.
Background technology
Recently, market is more and more stronger to the demand of black mulch film, than common mulch film, its opaque, no reflection events, be mainly used in preparation LED lamp plate, auto lamp etc., backlight owing to not reflecting, therefore this opaque mulch film can strengthen the contrast gradient of luminous source, helps to improve the working efficiency of photoelectric component; In addition, the black mulch film also is widely used in the manufacturing of mobile phone.
With regard to the technology of preparing of black mulch film, technological approaches commonly used has two kinds: the one, common mulch film is coated on the black PI film with glue; The 2nd, special a kind of black glue is coated in (as US 2004/0142191) on the common PI film.For batch process, first kind of approach only need be changed starting material, and be easy and simple to handle; Second kind of approach then will be started with from the glue prescription, and brings certain puzzlement to production operation.The problem of first kind of approach existence is: the black PI film of the above thickness of 25 μ m all has sale both at home and abroad, and black PI film manufacturer and the supply of 12.5 μ m are less, exist and cost an arm and a leg or immature situation, subject matter is in order to reach needed blackness, must add a large amount of carbon powders, but the surface insulation performance can reduce, bad phenomenon such as short circuit appear, therefore the contradiction that has blackness and insulating property, and the too high meeting of the ratio of filler badly influences actual PI film production, cause a lot of producers can produce black PI but be thinned to 12.5 μ m just be difficult to produce and client's this specification just of demand often; The problem of second kind of approach existence is: mulch film itself is very complicated to the requirement of glue-line, and multinomial performance is conflicting, it is very big with regard to difficulty to obtain a kind of mulch film that satisfies the demands itself, it is just more complicated with contradiction now will to develop a kind of black glue, not only to solve the problem of mulch film itself, also to be in harmonious proportion and add the blackness that carbon black brought, contradiction between light transmission and the insulativity, its inevitable outcome is exactly that the fundamental property of black mulch film of this kind method preparation is poorer than common mulch film, comprise storage, cementability, cover shape property, electrical properties etc. all have reduction in various degree, and the black glue-line directly contacts with copper cash, the potential risk that under wet environment, has little weak point, make the insulating reliability of flexible printed wiring board descend, and blackness requires high more, and the content of carbon black that is added is high more, and insulating property can be poorer.
The utility model content
The purpose of this utility model is to provide a kind of black mulch film, and the black insulating basement membrane that employing can be too not black cooperates with black insulation glue-line, reaches the excellent basic performances and the blackness of black mulch film.
For achieving the above object, the utility model provides a kind of black mulch film, comprising: the black insulating basement membrane, be located at the black insulation glue-line on the black insulating basement membrane and be located at separate-type paper or release film on the black insulation glue-line.
Described black insulating basement membrane is polyimide (PI) film, polyester (PET) film, poly-naphthalene ester (PEN) film or liquid crystalline polymers (LCP) film, and its thickness is 10-100 μ m.
Described black insulation glue-line is epoxy resin glue system, acrylate adhesive system, polyester glue system, polyurethane adhesive system or polyimide glue system, and its thickness is 10-50 μ m.
The thickness of described separate-type paper or release film is 50-150 μ m.
The beneficial effects of the utility model are: black mulch film of the present utility model, and than the black mulch film that traditional technology is made, because the blackness of PI film is required to reduce, the surface insulation performance is more secure, and the decline of production difficulty, can accomplish thinner; And also because the blackness of insulation glue-line is required to reduce, the glue-line that not only insulate is easier to reach requirement, and in blackness control, processibility, reliability and have clear superiority in price.Therefore, there is remarkable advantages the fundamental property of black mulch film of the present utility model and reliability aspect, have excellent blackness and opacifying power, and application performance can better be guaranteed.
In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the utility model is limited.
Description of drawings
Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by embodiment of the present utility model is described in detail.
In the accompanying drawing,
Fig. 1 is the structural representation of black mulch film of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
As shown in Figure 1, black mulch film of the present utility model, can be used for flexible printed wiring board, it comprises: black insulating basement membrane 1, be located at the black insulation glue-line 2 on black insulating basement membrane 1 one sides and be located at separate-type paper or release film 3 on the black insulation glue-line 2 with respect to black insulating basement membrane 1.
Wherein, polyimide (PI) film that described black insulating basement membrane 1 is a black, polyester (PET) film, poly-naphthalene ester (PEN) film or liquid crystalline polymers (LCP) film, its thickness is 10-100 μ m.Described black insulation glue-line 2 can be epoxy resin glue system, acrylate adhesive system, polyester glue system, polyurethane adhesive system or polyimide glue system, and its thickness is 10-50 μ m.The thickness of described separate-type paper or release film 3 is 50-150 μ m.
The concrete preparation process of black mulch film of the present utility model is as follows:
(1) utilizing organic solvent to mix each required glue is the liquid dispersion that component forms black insulation glue-line 2, uses coating equipment that this dispersion is coated on the black insulating basement membrane 1.
(2) make the online drying oven of black insulating basement membrane 1 process that is coated with dispersion, 80-180 ℃ of heating 1 to 10 minute, remove organic solvent and fast setting thus, thereby on black insulating basement membrane 1, form black insulation glue-line 2.
(3) under 80-100 ℃, separate-type paper or release film 3 are compounded on the black insulation glue-line 2, promptly obtain the black mulch film.
With the performance of the black mulch film of the common insulation glue-line of black mulch film of the present utility model and black insulating basement membrane (PI film) collocation relatively, pass judgment on to reach identical blackness, used polyimide (PI) film is compared common used carbon black and has been reduced 20% in the utility model, on PI film production technical difficulty obvious reduction is arranged, surface insulation resistance has promoted two orders of magnitude.
With the performance of the black mulch film of black mulch film of the present utility model and common insulating basement membrane collocation black insulation glue-line relatively, pass judgment on to reach identical blackness, insulation glue-line in the utility model is compared common used carbon black and has been reduced 30%, the shelf lives of insulation glue-line can prolong 1/3rd, its insulating property and processing characteristics significantly promote, and fundamental property is better.
In sum, black mulch film of the present utility model, than the black mulch film that traditional technology is made, because the blackness of PI film is required to reduce, the surface insulation performance is more secure, and the decline of production difficulty, can accomplish thinner; And also because the blackness of insulation glue-line is required to reduce, the glue-line that not only insulate is easier to reach requirement, and in blackness control, processibility, reliability and have clear superiority in price.Therefore, there is remarkable advantages the fundamental property of black mulch film of the present utility model and reliability aspect, have excellent blackness and opacifying power, and application performance can better be guaranteed.
The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection domain of the utility model accompanying Claim.
Claims (4)
1. a black mulch film is characterized in that, comprising: the black insulating basement membrane, be located at the black insulation glue-line on the black insulating basement membrane and be located at separate-type paper or release film on the black insulation glue-line.
2. black mulch film as claimed in claim 1 is characterized in that, described black insulating basement membrane is polyimide film, polyester film, poly-naphthalene ester film or liquid crystalline polymer film, and its thickness is 10-100 μ m.
3. black mulch film as claimed in claim 1 is characterized in that, described black insulation glue-line is epoxy resin glue system, acrylate adhesive system, polyester glue system, polyurethane adhesive system or polyimide glue system, and its thickness is 10-50 μ m.
4. black mulch film as claimed in claim 1 is characterized in that, the thickness of described separate-type paper or release film is 50-150 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200965162U CN201962236U (en) | 2011-04-03 | 2011-04-03 | Black mulching film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200965162U CN201962236U (en) | 2011-04-03 | 2011-04-03 | Black mulching film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201962236U true CN201962236U (en) | 2011-09-07 |
Family
ID=44524770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200965162U Expired - Lifetime CN201962236U (en) | 2011-04-03 | 2011-04-03 | Black mulching film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201962236U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635008A (en) * | 2012-08-28 | 2014-03-12 | 昆山雅森电子材料科技有限公司 | Opening intensive type printed circuit board covering film |
| CN107109155A (en) * | 2015-09-07 | 2017-08-29 | 日东电工株式会社 | Graphite flake bonding sheet |
| CN107619643A (en) * | 2017-10-13 | 2018-01-23 | 苏州赛伍应用技术股份有限公司 | Photovoltaic module busbar insulating tape, busbar and photovoltaic module comprising the insulating tape |
| CN110769614A (en) * | 2019-10-28 | 2020-02-07 | 厦门弘信电子科技股份有限公司 | FPC full-process tracing method with black cover film |
-
2011
- 2011-04-03 CN CN2011200965162U patent/CN201962236U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635008A (en) * | 2012-08-28 | 2014-03-12 | 昆山雅森电子材料科技有限公司 | Opening intensive type printed circuit board covering film |
| CN107109155A (en) * | 2015-09-07 | 2017-08-29 | 日东电工株式会社 | Graphite flake bonding sheet |
| CN107109155B (en) * | 2015-09-07 | 2018-08-28 | 日东电工株式会社 | Graphite flake bonding sheet |
| CN107619643A (en) * | 2017-10-13 | 2018-01-23 | 苏州赛伍应用技术股份有限公司 | Photovoltaic module busbar insulating tape, busbar and photovoltaic module comprising the insulating tape |
| CN110769614A (en) * | 2019-10-28 | 2020-02-07 | 厦门弘信电子科技股份有限公司 | FPC full-process tracing method with black cover film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |