CN206906791U - A kind of diaphragm of photosensitive dry film - Google Patents
A kind of diaphragm of photosensitive dry film Download PDFInfo
- Publication number
- CN206906791U CN206906791U CN201720467145.1U CN201720467145U CN206906791U CN 206906791 U CN206906791 U CN 206906791U CN 201720467145 U CN201720467145 U CN 201720467145U CN 206906791 U CN206906791 U CN 206906791U
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- Prior art keywords
- layer
- surface layer
- diaphragm
- mute
- dry film
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- 239000002344 surface layer Substances 0.000 claims abstract description 52
- 239000010410 layer Substances 0.000 claims abstract description 39
- 239000003595 mist Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 abstract description 11
- 150000001875 compounds Chemical class 0.000 abstract description 7
- 239000011229 interlayer Substances 0.000 abstract description 3
- 230000001788 irregular Effects 0.000 abstract description 3
- 230000004075 alteration Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 210000002469 basement membrane Anatomy 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010096 film blowing Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 210000004379 membrane Anatomy 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Materials For Photolithography (AREA)
Abstract
A kind of diaphragm of photosensitive dry film, including film body, the film body include the light surface layer that surface is the mute surface layer in mute face and surface is smooth surface；The roughness Ra of light surface layer is 0~0.15 micron, surface energy is 0~25 dynes per centimeter, off-type force is 0~2000 gram；The roughness Ra of mute surface layer is more than 25 dynes per centimeters more than 0.15 micron, surface energy, and off-type force is more than 2000 grams, and film body also includes at least one layer of intermediate layer, and the intermediate layer, which is located between mute surface layer and light surface layer, to be used to connect mute surface layer and light surface layer.The utility model makes film body have matte surface and smooth surface by improvements over the prior art, wherein, smooth surface is compound with photosensitive layer, and appropriate off-type force had both ensured that diaphragm was attached onto with photosensitive layer, ensures to be easier to separate in press mold link diaphragm again；Mute surface layer provides appropriate frictional force, and winding caused by preventing winding and transportation dry film interlayer slip, dislocation is irregular, improves the quality of product.
Description
Technical field
A kind of diaphragm is the utility model is related to, specifically a kind of diaphragm being attached on photosensitive dry film.
Background technology
With the raising of people's health consciousness, operating environment requirements are also increasingly paid attention to.It is well known that in printed wire
In the manufacturing process of plate, forming line pattern can be using photosensitive dry film be arrived, and photosensitive dry film includes support basement membrane, photosensitive resin and guarantor
Cuticula.Diaphragm plays a protective role, diaphragm is generally torn before press mold as the protective layer to photosensitive dry film to photosensitive dry film
Under, ensure the normal making of circuit board.The diaphragm of current photosensitive dry film, usually PE diaphragms or PP diaphragms, i.e.,
Diaphragm or the diaphragm completely made of PP materials completely made of PE materials, two surfaces of both films are substantially all
For smooth surface, the roughness on two surfaces, off-type force etc. are all identicals, in actual use, problems be present.
PE diaphragms：1）, it is more soft, when being attached to after the photosensitive layer of photosensitive dry film operating winding in a device, easily
There is the problem of Bamboo-shaped annular protrusion.2）, rigidity deficiency, because have after stretching shrink be inclined to, easily cause photosensitive layer by squeeze
Press gummosis；And diaphragm memory stretching, cause winding after Hui Song, easily occur during subsequent transportation use diaphragm with
Photosensitive dry film problem of misalignment.3）, tensile strength deficiency, particularly film laminator internal temperature be higher than 40 degree when, photosensitive dry film row
Enter the film laminator by diaphragm traction, PE diaphragms cause photosensitive dry film to be unable to synchronization marching, caused because elongated by hot-stretch
Press mold fails.4）, rigidity deficiency, it is compound, cutting and the press mold stage easily produce tiltedly wrinkle.5）, transparency it is higher, photosensitive dry film
Photosensitive layer small thickness difference or PE diaphragms and the compound slight pressure difference of photosensitive dry film, all easily produce annular
Aberration.6）Manufacture method uses film-blowing process, and production efficiency is low.
PP films：1）, rigidity it is larger, and self lubricity with great difficulty causes diaphragm slip layer, and winding is irregular；Because rubbing during pad pasting
It is small to wipe power, diaphragm winding is irregular, or even can not wind, and causes press mold to fail.2）Transparency is higher, with PE diaphragms one
Sample, small thickness difference or PP diaphragms and the compound slight pressure difference of photosensitive dry film of the photosensitive layer of photosensitive dry film, all
Easily produce annular aberration.
In addition, current PE diaphragms or PP diaphragms, for its mist degree generally all below 20%, transparency is more than 80%, hides
Lid power is poor, easily produces the problem of appearance such as aberration.
Therefore, current PE diaphragms and PP diaphragms in use, all be present.Due to PP diaphragms
Inherent shortcoming gradually make it that making diaphragm using PE materials turns into main flow by market, but PE diaphragms can only be using blowing
Membrane process makes, the width and limited speed of making, and efficiency is low.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of diaphragm of photosensitive dry film, has enough intensity,
Ensure being smoothed out for press mold, it is neat with photosensitive dry film winding, it is less prone to annular aberration.
In order to solve the above-mentioned technical problem, the utility model takes following technical scheme：
A kind of diaphragm of photosensitive dry film, including film body, the film body is the mute surface layer in mute face including surface and surface is
The light surface layer of smooth surface；The roughness Ra of light surface layer is 0~0.15 micron, surface energy is 0~25 dynes per centimeter, off-type force be 0~
2000 grams；The roughness Ra of mute surface layer is more than 25 dynes per centimeters more than 0.15 micron, surface energy, and off-type force is more than 2000 grams.
The film body also includes intermediate layer, and the intermediate layer, which is located between mute surface layer and light surface layer, to be used to connect mute surface layer and light
Surface layer.
The intermediate layer is at least provided with one layer.
The density of the film body is between 0.85~0.89 gram/cc.
The mist degree of the film body is 20%~85%.
The tensile strength of the film body is more than or equal to 70MPa, and tearing toughness is more than or equal to 2MPa.
The elongation at break is more than or equal to 120%.
The fusing point of the film body is between 145-155 DEG C.
The thickness of the film body is between 15-22 microns.
The utility model passes through improvements over the prior art so that and diaphragm has the rigidity of certain intensity concurrently simultaneously, with
And mute surface layer and two different surfaces of light surface layer are set, by the different off-type forces of setting, wherein, smooth surface is answered with photosensitive layer
Close, appropriate off-type force both ensured that diaphragm was attached onto with photosensitive layer, ensured to be easier to point in press mold link diaphragm again
From；Mute surface layer provides appropriate frictional force, and winding caused by preventing winding and transportation dry film interlayer slip, dislocation is not whole
Together so that photosensitive dry film is more stable, reliable during compound, cutting, transport and use, improves the quality of product.
Due to higher mist degree and covering power, being not likely to produce aberration.
Brief description of the drawings
Accompanying drawing 1 is the cross-sectional view that the utility model is not provided with intermediate layer；
Accompanying drawing 2 is that the utility model sets the cross-sectional view behind intermediate layer；
Accompanying drawing 3 is that the utility model attaches the diagrammatic cross-section after pressing with photosensitive dry film.
Embodiment
For the ease of the understanding of those skilled in the art, utility model is further described below in conjunction with the accompanying drawings.
As shown in accompanying drawing 1,2 and 3, the utility model discloses a kind of diaphragm of photosensitive dry film, including film body, the film
Body includes the light surface layer 22 that surface is the mute surface layer 21 in mute face and surface is smooth surface；The roughness Ra of light surface layer is 0~0.15 micro-
Rice, surface energy are 0~25 dynes per centimeter, off-type force is 0~2000 gram；The roughness Ra of mute surface layer is more than 0.15 micron, surface
25 dynes per centimeters can be more than, off-type force is more than 2000 grams.The roughness of light surface layer 22 is to refer to the smooth surface where the light surface layer
Roughness, the roughness of mute surface layer 21 are to refer to the roughness in the mute face where the mute surface layer.Light surface layer 21 and the phase of mute surface layer 22
Mutually attach pressing and form film body entirety.The photosensitive layer pressing of the light surface layer 22 of the film body and photosensitive dry film 3 attaches, and realizes diaphragm
And the combination of photosensitive dry film.Pass through the surface energy of the light surface layer and mute surface layer, the restriction of off-type force.For example light surface layer is coarse
To spend for 0.15 micron, surface energy is 25 dynes per centimeters, and off-type force is 2000 grams, wherein, the photosensitive layer of light surface layer and photosensitive dry film
Compound, appropriate off-type force had both ensured that diaphragm was attached onto with photosensitive layer, ensured to be easier in press mold link diaphragm again
Separation；Mute surface layer provides appropriate frictional force, and winding caused by preventing winding and transportation dry film interlayer slip, dislocation is not
Neatly so that photosensitive dry film is more stable, reliable during compound, cutting, transport and use, improves the matter of product
Amount.
In addition, film body is also possible that intermediate layer 23, it is not particularly limited.The intermediate layer 23 is located at mute surface layer 21 and light surface layer
It is used to connect mute surface layer and light surface layer between 22.The intermediate layer can also be multilayer.One layer of intermediate layer is such as only set, now film body
Structure just include three layers of mute surface layer, intermediate layer and light surface layer altogether.If setting two layers of intermediate layer, film is just altogether comprising mute
Four layers of surface layer, intermediate layer, intermediate layer and light surface layer.The thickness of film body is preferably between 15-22 microns, within the range, intermediate layer
Quantity can flexibly be set according to being actually needed.By the intermediate layer, the entirety of film body is also improved to a certain extent
Rigidity.By limiting the integral thickness numerical value of film body, avoid thickness too low, such as influence to use less than 15 microns；Or thickness
It is excessive, cause cost to waste more than 22 microns, coil diameter is excessive, transport inconvenience.
The density of the film body is between 0.85~0.89 gram/cc.Pass through the density of the restriction, it can be ensured that,
In the case of same thickness, the lighter in weight of the film body in the utility model is advantageous to the reduction of material cost, and does not influence
Production.And the diaphragm of the density range is not allowed to be also easy to produce wrinkle, even if easily flattening is generated also, ensure overall smooth
Property, it is ensured that with being less prone to annular protrusion problem after photosensitive dry film press mold.
The mist degree of the film body is 20%~85%.By limiting a moderate haze value, it is ensured that the stabilization of total quality
Property, mist degree is too low, does not reach covering effect, and mist degree is too high, then can influence optical check.
The tensile strength of the film body is more than or equal to 70MPa, and tearing toughness is more than or equal to 2MPa, and tearing toughness is with film
Tested during 90 degree of breach of body.Pass through the tensile strength and tearing toughness of the restriction, it is ensured that in film laminator during press mold, protect
Cuticula can draw photosensitive dry film synchronization marching, it is ensured that press mold is smoothed out.
The elongation at break is more than or equal to 120%.The fusing point of film body is between 145-155 DEG C.Make film body in high temperature atmosphere
Breakage problem or excessively elongation are not susceptible to when being stretched.
It should be noted that described above is not the restriction to technical solutions of the utility model, this practicality is not being departed from
It is any obviously to replace within the scope of protection of the utility model on the premise of new creation design.
Claims (9)
1. a kind of diaphragm of photosensitive dry film, including film body, it is characterised in that the film body includes the mute surface layer that surface is mute face
With the light surface layer that surface is smooth surface；
The roughness Ra of light surface layer is 0~0.15 micron, surface energy is 0~25 dynes per centimeter, off-type force is 0~2000 gram；
The roughness Ra of mute surface layer is more than 25 dynes per centimeters more than 0.15 micron, surface energy, and off-type force is more than 2000 grams.
2. the diaphragm of photosensitive dry film according to claim 1, it is characterised in that the film body also includes intermediate layer, should
Intermediate layer, which is located between mute surface layer and light surface layer, to be used to connect mute surface layer and light surface layer.
3. the diaphragm of photosensitive dry film according to claim 2, it is characterised in that the intermediate layer is at least provided with one layer.
4. the diaphragm of photosensitive dry film according to claim 3, it is characterised in that the density of the film body 0.85~
Between 0.89 gram/cc.
5. the diaphragm of photosensitive dry film according to claim 4, it is characterised in that the mist degree of the film body be 20%~
85%。
6. the diaphragm of photosensitive dry film according to claim 5, it is characterised in that the tensile strength of the film body be more than etc.
In 70MPa, tearing toughness is more than or equal to 2MPa.
7. the diaphragm of photosensitive dry film according to claim 6, it is characterised in that the elongation at break of the film body is more than
Equal to 120%.
8. the diaphragm of photosensitive dry film according to claim 7, it is characterised in that the fusing point of the film body is in 145-155
Between DEG C.
9. the diaphragm of the photosensitive dry film according to any one of claim 1-8, it is characterised in that the thickness of the film body
Between 15-22 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720467145.1U CN206906791U (en) | 2017-04-28 | 2017-04-28 | A kind of diaphragm of photosensitive dry film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720467145.1U CN206906791U (en) | 2017-04-28 | 2017-04-28 | A kind of diaphragm of photosensitive dry film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206906791U true CN206906791U (en) | 2018-01-19 |
Family
ID=61291546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720467145.1U Active CN206906791U (en) | 2017-04-28 | 2017-04-28 | A kind of diaphragm of photosensitive dry film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206906791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106933038A (en) * | 2017-04-28 | 2017-07-07 | 湖南鸿瑞新材料股份有限公司 | A kind of diaphragm of photosensitive dry film |
-
2017
- 2017-04-28 CN CN201720467145.1U patent/CN206906791U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106933038A (en) * | 2017-04-28 | 2017-07-07 | 湖南鸿瑞新材料股份有限公司 | A kind of diaphragm of photosensitive dry film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210201 Address after: 417000 second floor, building 0001, Wujiang Light Chemical Group Co., Ltd., Loudi economic and Technological Development Zone, Hunan Province Patentee after: Hunan Wujiang high tech materials Co.,Ltd. Address before: 417000 Hunan Province, Loudi City Economic Development Zone Industrial Park five Patentee before: HUNAN HORI NEW MATERIALS Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 417000 north side of Qunle street and west side of Nanbei Third Road, economic and Technological Development Zone, Loudi City, Hunan Province Patentee after: Hunan Chuyuan New Materials Co.,Ltd. Address before: 417000 second floor, building 0001, Wujiang Light Chemical Group Co., Ltd., Loudi economic and Technological Development Zone, Hunan Province Patentee before: Hunan Wujiang high tech materials Co.,Ltd. |