CN109831870A - A kind of flexible circuit board PET film structure and preparation process - Google Patents
A kind of flexible circuit board PET film structure and preparation process Download PDFInfo
- Publication number
- CN109831870A CN109831870A CN201910179410.XA CN201910179410A CN109831870A CN 109831870 A CN109831870 A CN 109831870A CN 201910179410 A CN201910179410 A CN 201910179410A CN 109831870 A CN109831870 A CN 109831870A
- Authority
- CN
- China
- Prior art keywords
- pet film
- circuit board
- flexible circuit
- film
- finished product
- 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.)
- Granted
Links
Landscapes
- Laminated Bodies (AREA)
Abstract
It include PET film, flexible insulation glue-line the present invention relates to a kind of flexible circuit board PET film structure, the wherein PET film at least two, be parallel to each other distribution between each PET film, and the flexible insulation glue-line between two neighboring PET film by thickness no more than 0.5 millimeter is connected with each other.It is pre-processed including PET film, gluing, pressing, five steps such as drying and shaping and remodeling.One aspect of the present invention structure and simple production process, low production cost, there is good structural strength, toughness, insulation performance and flame retardant property simultaneously, on the other hand more traditional PI film can effectively reduce the cost of flexible circuit board, to achieve the effect that improve flexible circuit board comprehensive performance and reduce production and use cost.
Description
Technical field
The present invention relates to a kind of flexible circuit board PET film structure and preparation process, belongs to flexible circuit board technical field.
Background technique
With the cost and progress of flexible circuit board production technology, in the equipment such as electronic product, lighting apparatus extensively
Application, but find in actual use, it is currently used that flexible circuit board is often all based on the circuit based on PI film
Structure, although can satisfy the needs used, the cost is relatively high for PI film, and the flexibility of PI film is relatively poor, therefore limits
Made flexible circuit board performance raising and production and use cost control, for this problem, although also have using PET film into
The method of row flexible circuit board preparation, although the flexibility of PET film is higher and low in cost, toughness and tensile property are relatively
Difference, to seriously affect the performance and Quality advance of flexible circuit panel products.
Therefore, for this status, there is an urgent need to develop a kind of process for producing based on PET film, to meet reality
The needs used.
Summary of the invention
In order to solve the deficiency in the prior art, the present invention provides a kind of flexible circuit board PET film structure and experiment side
Method.
In order to realize effect above-mentioned, a kind of flexible circuit board PET film structure and preparation process, tool are proposed
Body includes the following contents:
A kind of flexible circuit board PET film structure includes PET film, flexible insulation glue-line, wherein the PET film at least two, respectively
Be parallel to each other distribution between PET film, and mutual no more than 0.5 millimeter of flexible insulation glue-line by thickness between two neighboring PET film
Connection.
A kind of preparation process of flexible circuit board PET film structure, comprising the following steps:
S1, PET film pretreatment, makes each PET respectively under 160 DEG C -170 DEG C of isoperibol at least two layers of PET film first
Film carries out stretching flattening operation under 70% -90% tractive force effect that pulling force is PET film surface tension limiting value respectively, then
To stretching, flattening is post-job to carry out winding operation and constant temperature preservation under 160 DEG C -170 DEG C of isoperibol；
S2, gluing are chosen the PET film in S1 step after one of winding, and are cut according to the needs of use to specified ruler
It is very little to be used as counterdie, make it under 160 DEG C -170 DEG C of isoperibol the 70%-of pulling force PET film surface tension limiting value
It carries out stretching flattening operation under the effect of 90% tractive force, and makes the PET film after flattening that distribution be parallel to the horizontal plane, then will be soft
Property insulation glue-line with spray to stretch flattening operation PET film upper surface, constant temperature, which is stood to flexible insulation glue-line water content, is
It is spare that heat preservation at press equipment is transported to after 30% -60%；
S3, pressing, choose S1 step in another winding after PET film, and the PET film size cut according to S2 step cut to
Specified size is transported at press equipment as overlay film, and after being warming up to 160 DEG C -170 DEG C, then chooses S3 step
PET film by the PET film upper surface after press equipment and S2 step process, and make the PET film of S2 step and the PET of S3 step
It is bonded between film by flexible insulation glue-line and the distribution that is parallel to each other, obtains semi-finished product；
The semi-finished product being prepared in S3 step are kept the temperature standing by S4, drying and shaping under 160 DEG C -170 DEG C isoperibols, and
During standing, 70% -90% tractive force that pulling force is PET film surface tension limiting value separately is applied to semi-finished product and is carried out shaping,
And standing soaking time is 3-15 minutes, then naturally cools to room temperature under the conditions of keeping tractive force to remain unchanged, can obtain
To finished product；
S5, remodeling, according to the needs of use, can separately choose the finished product in S4 step, be back to S2 step, then to S4 step at
Product upper surface carries out new PET film coating processing, to achieve the purpose that adjust finished product PET film structure according to the needs of use.
Further, when the S2 step carries out the spraying of flexible insulation glue again, every time in PET film superficial deposit after spraying
Flexible insulation bondline thickness be 0.05-0.2 millimeter.
Further, when the S3 step carries out bonding operation, the tractive force direction of the PET film as overlay film and conduct
The tractive force direction of counterdie PET film is in 45 ° -90 ° angles.
Further, when the S3 step carries out bonding operation, the area of the PET film as overlay film is as counterdie
1.1-1.5 times of the area of PET film, and be coaxially distributed between overlay film and counterdie.
One aspect of the present invention structure and simple production process, low production cost, while there is good structural strength, tough
Property, insulation performance and flame retardant property, on the other hand more traditional PI film can effectively reduce the cost of flexible circuit board, to reach
To the effect for improving flexible circuit board comprehensive performance and reduction production and use cost.
Detailed description of the invention
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments；
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the method for the present invention flow chart.
Specific embodiment
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to construct, below with reference to specific
Embodiment, the present invention is further explained.
As shown in Figure 1, a kind of flexible circuit board PET film structure, including PET film 1, flexible insulation glue-line 2, wherein described
PET film 1 at least two, be parallel to each other between each PET film 1 distribution, and is not more than 0.5 millimeter by thickness between two neighboring PET film 1
Flexible insulation glue-line 2 be connected with each other.
Embodiment 1
As shown in Fig. 2, a kind of preparation process of flexible circuit board with PET film structure, comprising the following steps:
S1, PET film pretreatment, makes each PET film exist respectively respectively under 160 DEG C of isoperibol at least two layers of PET film first
Pulling force is to carry out stretching flattening operation under 70% tractive force of PET film surface tension limiting value acts on, and then flattens operation to stretching
Simultaneously constant temperature saves for the winding operation that carries out under 160 DEG C of isoperibol afterwards；
S2, gluing are chosen the PET film in S1 step after one of winding, and are cut according to the needs of use to specified ruler
It is very little to be used as counterdie, act on it under 160 DEG C of isoperibol in 70% tractive force of pulling force PET film surface tension limiting value
Under carry out stretch flattening operation, and make flattening after PET film distribution is parallel to the horizontal plane, then by flexible insulation glue-line with
Spray to stretch flattening operation PET film upper surface, constant temperature stand to flexible insulation glue-line water content be 30% after be transported to pressing
It is kept the temperature at equipment spare；
S3, pressing, choose S1 step in another winding after PET film, and the PET film size cut according to S2 step cut to
Specified size is transported at press equipment as overlay film, and after being warming up to 160 DEG C, the PET film for then choosing S3 step
By the PET film upper surface after press equipment and S2 step process, and make to lead between the PET film of S2 step and the PET film of S3 step
It crosses flexible insulation glue-line to be bonded and the distribution that is parallel to each other, obtains semi-finished product；
The semi-finished product being prepared in S3 step are kept the temperature standing under 160 DEG C of isoperibols, and stood by S4, drying and shaping
In the process, separately apply 70% tractive force that pulling force is PET film surface tension limiting value to semi-finished product to carry out shaping, and stand heat preservation
Time is 3 minutes, then naturally cools to room temperature under the conditions of keeping tractive force to remain unchanged, finished product can be obtained；
S5, remodeling, according to the needs of use, can separately choose the finished product in S4 step, be back to S2 step, then to S4 step at
Product upper surface carries out new PET film coating processing, to achieve the purpose that adjust finished product PET film structure according to the needs of use.
It is heavy on PET film surface layer after spraying every time when the S2 step carries out the spraying of flexible insulation glue again in the present embodiment
Long-pending flexible insulation bondline thickness is 0.05 millimeter.
In the present embodiment, when the S3 step carries out bonding operation, the tractive force direction of the PET film as overlay film and work
Tractive force direction for counterdie PET film is in 45 ° of angles.
In the present embodiment, when the S3 step carries out bonding operation, the area of the PET film as overlay film is as counterdie
1.1 times of the area of PET film, and be coaxially distributed between overlay film and counterdie.
Embodiment 2
As shown in Fig. 2, a kind of preparation process of flexible circuit board with PET film structure, comprising the following steps:
S1, PET film pretreatment, makes each PET film exist respectively respectively under 170 DEG C of isoperibol at least two layers of PET film first
Pulling force is to carry out stretching flattening operation under 90% tractive force of PET film surface tension limiting value acts on, and then flattens operation to stretching
Simultaneously constant temperature saves for the winding operation that carries out under 170 DEG C of isoperibol afterwards；
S2, gluing are chosen the PET film in S1 step after one of winding, and are cut according to the needs of use to specified ruler
It is very little to be used as counterdie, act on it under 170 DEG C of isoperibol in 90% tractive force of pulling force PET film surface tension limiting value
Under carry out stretch flattening operation, and make flattening after PET film distribution is parallel to the horizontal plane, then by flexible insulation glue-line with
Spray to stretch flattening operation PET film upper surface, constant temperature stand to flexible insulation glue-line water content be 60% after be transported to pressing
It is kept the temperature at equipment spare；
S3, pressing, choose S1 step in another winding after PET film, and the PET film size cut according to S2 step cut to
Specified size is transported at press equipment as overlay film, and after being warming up to 170 DEG C, the PET film for then choosing S3 step
By the PET film upper surface after press equipment and S2 step process, and make to lead between the PET film of S2 step and the PET film of S3 step
It crosses flexible insulation glue-line to be bonded and the distribution that is parallel to each other, obtains semi-finished product；
The semi-finished product being prepared in S3 step are kept the temperature standing under 170 DEG C of isoperibols, and stood by S4, drying and shaping
In the process, separately apply 90% tractive force that pulling force is PET film surface tension limiting value to semi-finished product to carry out shaping, and stand heat preservation
Time is 15 minutes, then naturally cools to room temperature under the conditions of keeping tractive force to remain unchanged, finished product can be obtained；
S5, remodeling, according to the needs of use, can separately choose the finished product in S4 step, be back to S2 step, then to S4 step at
Product upper surface carries out new PET film coating processing, to achieve the purpose that adjust finished product PET film structure according to the needs of use.
It is heavy on PET film surface layer after spraying every time when the S2 step carries out the spraying of flexible insulation glue again in the present embodiment
Long-pending flexible insulation bondline thickness is 0.2 millimeter.
In the present embodiment, when the S3 step carries out bonding operation, the tractive force direction of the PET film as overlay film and work
Tractive force direction for counterdie PET film is in 90 ° of angles.
In the present embodiment, when the S3 step carries out bonding operation, the area of the PET film as overlay film is as counterdie
1.5 times of the area of PET film, and be coaxially distributed between overlay film and counterdie.
Embodiment 3
As shown in Fig. 2, a kind of preparation process of flexible circuit board with PET film structure, comprising the following steps:
S1, PET film pretreatment, makes each PET film exist respectively respectively under 166 DEG C of isoperibol at least two layers of PET film first
Pulling force is to carry out stretching flattening operation under 80% tractive force of PET film surface tension limiting value acts on, and then flattens operation to stretching
Simultaneously constant temperature saves for the winding operation that carries out under 165 DEG C of isoperibol afterwards；
S2, gluing are chosen the PET film in S1 step after one of winding, and are cut according to the needs of use to specified ruler
It is very little to be used as counterdie, act on it under 165 DEG C of isoperibol in 80% tractive force of pulling force PET film surface tension limiting value
Under carry out stretch flattening operation, and make flattening after PET film distribution is parallel to the horizontal plane, then by flexible insulation glue-line with
Spray to stretch flattening operation PET film upper surface, constant temperature stand to flexible insulation glue-line water content be 40% after be transported to pressing
It is kept the temperature at equipment spare；
S3, pressing, choose S1 step in another winding after PET film, and the PET film size cut according to S2 step cut to
Specified size is transported at press equipment as overlay film, and after being warming up to 166 DEG C, the PET film for then choosing S3 step
By the PET film upper surface after press equipment and S2 step process, and make to lead between the PET film of S2 step and the PET film of S3 step
It crosses flexible insulation glue-line to be bonded and the distribution that is parallel to each other, obtains semi-finished product；
The semi-finished product being prepared in S3 step are kept the temperature standing under 166 DEG C of isoperibols, and stood by S4, drying and shaping
In the process, separately apply 80% tractive force that pulling force is PET film surface tension limiting value to semi-finished product to carry out shaping, and stand heat preservation
Time is 10 minutes, then naturally cools to room temperature under the conditions of keeping tractive force to remain unchanged, finished product can be obtained；
S5, remodeling, according to the needs of use, can separately choose the finished product in S4 step, be back to S2 step, then to S4 step at
Product upper surface carries out new PET film coating processing, to achieve the purpose that adjust finished product PET film structure according to the needs of use.
It is heavy on PET film surface layer after spraying every time when the S2 step carries out the spraying of flexible insulation glue again in the present embodiment
Long-pending flexible insulation bondline thickness is 0.1 millimeter.
In the present embodiment, when the S3 step carries out bonding operation, the tractive force direction of the PET film as overlay film and work
Tractive force direction for counterdie PET film is in 60 ° of angles.
In the present embodiment, when the S3 step carries out bonding operation, the area of the PET film as overlay film is as counterdie
1.2 times of the area of PET film, and be coaxially distributed between overlay film and counterdie.
One aspect of the present invention structure and simple production process, low production cost, while there is good structural strength, tough
Property, insulation performance and flame retardant property, on the other hand more traditional PI film can effectively reduce the cost of flexible circuit board, to reach
To the effect for improving flexible circuit board comprehensive performance and reduction production and use cost.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. a kind of flexible circuit board PET film structure, it is characterised in that: the flexible circuit board PET film structure includes PET
Film, flexible insulation glue-line, wherein the PET film at least two, be parallel to each other distribution between each PET film, and between two neighboring PET film
Flexible insulation glue-line by thickness no more than 0.5 millimeter is connected with each other.
2. a kind of flexible circuit board preparation process of PET film structure, it is characterised in that: the flexible circuit board PET film
The preparation process of structure the following steps are included:
S1, PET film pretreatment, makes each PET respectively under 160 DEG C -170 DEG C of isoperibol at least two layers of PET film first
Film carries out stretching flattening operation under 70% -90% tractive force effect that pulling force is PET film surface tension limiting value respectively, then
To stretching, flattening is post-job to carry out winding operation and constant temperature preservation under 160 DEG C -170 DEG C of isoperibol；
S2, gluing are chosen the PET film in S1 step after one of winding, and are cut according to the needs of use to specified ruler
It is very little to be used as counterdie, make it under 160 DEG C -170 DEG C of isoperibol the 70%-of pulling force PET film surface tension limiting value
It carries out stretching flattening operation under the effect of 90% tractive force, and makes the PET film after flattening that distribution be parallel to the horizontal plane, then will be soft
Property insulation glue-line with spray to stretch flattening operation PET film upper surface, constant temperature, which is stood to flexible insulation glue-line water content, is
It is spare that heat preservation at press equipment is transported to after 30% -60%；
S3, pressing, choose S1 step in another winding after PET film, and the PET film size cut according to S2 step cut to
Specified size is transported at press equipment as overlay film, and after being warming up to 160 DEG C -170 DEG C, then chooses S3 step
PET film by the PET film upper surface after press equipment and S2 step process, and make the PET film of S2 step and the PET of S3 step
It is bonded between film by flexible insulation glue-line and the distribution that is parallel to each other, obtains semi-finished product；
The semi-finished product being prepared in S3 step are kept the temperature standing by S4, drying and shaping under 160 DEG C -170 DEG C isoperibols, and
During standing, 70% -90% tractive force that pulling force is PET film surface tension limiting value separately is applied to semi-finished product and is carried out shaping,
And standing soaking time is 3-15 minutes, then naturally cools to room temperature under the conditions of keeping tractive force to remain unchanged, can obtain
To finished product；
S5, remodeling, according to the needs of use, can separately choose the finished product in S4 step, be back to S2 step, then to S4 step at
Product upper surface carries out new PET film coating processing, to achieve the purpose that adjust finished product PET film structure according to the needs of use.
3. a kind of flexible circuit board PET film structure according to claim 1, which is characterized in that the S2 step is again
When carrying out the spraying of flexible insulation glue, the flexible insulation bondline thickness after spraying in PET film superficial deposit is 0.05-0.2 milli every time
Rice.
4. a kind of flexible circuit board PET film structure according to claim 1, which is characterized in that the S3 step into
When row bonding operation, the tractive force direction of the PET film as overlay film is in 45 ° -90 ° with the tractive force direction as counterdie PET film
Angle.
5. a kind of flexible circuit board PET film structure according to claim 1, which is characterized in that the S3 step into
When row bonding operation, the area of the PET film as overlay film is 1.1-1.5 times of the area as counterdie PET film, and overlay film and
It is coaxially distributed between counterdie.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179410.XA CN109831870B (en) | 2019-03-11 | 2019-03-11 | PET film structure for flexible circuit board and preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179410.XA CN109831870B (en) | 2019-03-11 | 2019-03-11 | PET film structure for flexible circuit board and preparation process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109831870A true CN109831870A (en) | 2019-05-31 |
| CN109831870B CN109831870B (en) | 2021-04-20 |
Family
ID=66868746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910179410.XA Active CN109831870B (en) | 2019-03-11 | 2019-03-11 | PET film structure for flexible circuit board and preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109831870B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5885501A (en) * | 1997-06-24 | 1999-03-23 | E. I. Du Pont De Nemours And Company | Process for preparing dimensionally stabilized biaxially stretched thermoplastic film |
| CN204369794U (en) * | 2014-12-26 | 2015-06-03 | 东莞市纳利光学材料有限公司 | A kind of protective membrane of mobile terminal of can comprehensively fitting |
| CN205601319U (en) * | 2016-05-04 | 2016-09-28 | 惠州市贝斯特膜业有限公司 | A complex film that is used for flexible circuit board to press reinforcement and covers membrane technology |
-
2019
- 2019-03-11 CN CN201910179410.XA patent/CN109831870B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5885501A (en) * | 1997-06-24 | 1999-03-23 | E. I. Du Pont De Nemours And Company | Process for preparing dimensionally stabilized biaxially stretched thermoplastic film |
| CN204369794U (en) * | 2014-12-26 | 2015-06-03 | 东莞市纳利光学材料有限公司 | A kind of protective membrane of mobile terminal of can comprehensively fitting |
| CN205601319U (en) * | 2016-05-04 | 2016-09-28 | 惠州市贝斯特膜业有限公司 | A complex film that is used for flexible circuit board to press reinforcement and covers membrane technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109831870B (en) | 2021-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102244982A (en) | Method for controlling warp of local high-frequency mixed-laminated circuit board | |
| US20210060815A1 (en) | Bamboo chip integrated material and manufacturing method thereof | |
| TW200602191A (en) | Continuous production method for both-sided conductor polyimide laminate | |
| CN101086909A (en) | Making method of high adhesive self-pasting dual-glass silk-covered film agglomerated copper flat line | |
| CN206254279U (en) | A kind of smooth paint-free ecological plate high | |
| CN105392279A (en) | PCB board edge multi-row bonding pad and preparation method of multi-row edge ponding pad PCB board | |
| CN109831870A (en) | A kind of flexible circuit board PET film structure and preparation process | |
| CN102602112A (en) | Method for improving stability of a die-molded composite door panel | |
| CN111148361A (en) | Method for manufacturing copper-based sandwich board through glue filling | |
| CN212737158U (en) | L-shaped special-shaped piece with high strength and pressing tool thereof | |
| CN110587731A (en) | Preparation process of veneer | |
| CN206030640U (en) | Fibre honeycomb composite board | |
| CN102829318B (en) | Composite plastic board supported by ribs and production method thereof | |
| CN203077767U (en) | Rolling device | |
| CN102825644A (en) | Plate manufacturing process | |
| CN109041460A (en) | A kind of control method that multi-layer PCB board module product plate is stuck up | |
| CN108527945A (en) | A kind of flexible honeycomb and manufacturing method of heart cell | |
| CN106686912A (en) | Thick-bottom copper multilayered circuit board and preparation method therefor | |
| CN106364121A (en) | Surface film sticking compound device and method for producing sandwich composite boards | |
| CN106738107A (en) | A kind of manufacturing equipment of veneer plastic sheeting composite plate | |
| TWI250936B (en) | Method of continuous production of composite sheet materials | |
| CN206520284U (en) | A kind of copper-clad plate | |
| CN205762047U (en) | A kind of sticker adhesive face glue spreader | |
| CN207875023U (en) | Glass reinforced plastic composite board equipped with novel bonding structure | |
| CN101283863A (en) | Furniture panel and producing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |