CN112812693A - Double-sided adhesive tape for flexible circuit board and processing method - Google Patents
Double-sided adhesive tape for flexible circuit board and processing method Download PDFInfo
- Publication number
- CN112812693A CN112812693A CN201911063020.2A CN201911063020A CN112812693A CN 112812693 A CN112812693 A CN 112812693A CN 201911063020 A CN201911063020 A CN 201911063020A CN 112812693 A CN112812693 A CN 112812693A
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- Prior art keywords
- tape
- double
- finished product
- strip
- flexible circuit
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- 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.)
- Pending
Links
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 31
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 76
- 239000012790 adhesive layer Substances 0.000 claims description 23
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 abstract description 6
- 238000005520 cutting process Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000010030 laminating Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Abstract
The invention relates to a double-sided tape for a flexible circuit board and a processing method thereof, the double-sided tape comprises a finished product material belt (1), a finished product and an auxiliary material belt (2), the finished product material belt (1) and the auxiliary material belt (2) clamp the finished product in the middle, the double-sided tape further comprises a height increasing strip (3), the height increasing strip (3) is arranged adjacent to the finished product, one end of the height increasing strip is fixedly connected with the auxiliary material belt (2), the other end of the height increasing strip is detachably connected with the finished product material belt (1), and the thickness of the height increasing strip (3) is larger than that of the. Compared with the prior art, the automatic glue dispensing device can effectively avoid the situation that an automatic machine cannot dispense materials or glue overflows from an adhesive tape, and is simple in structure and easy to popularize.
Description
Technical Field
The invention relates to the field of die cutting, in particular to a double-sided adhesive tape for a flexible circuit board and a processing method.
Background
The application of the current automation degree is accelerated, the synchronous requirement of a coiled material supply mode is on the rising trend in the die cutting industry, and the double-sided adhesive tape mainly plays a role in fixing a flexible circuit board, which is called FPC for short, in the current mobile phone, notebook and digital products.
Fig. 1 is a schematic diagram of a conventional die cutting process of a double-sided tape, in which a core 9 is disposed in the middle, an arrow without a numeral label on a side is an acting force, and fig. 2 is an enlarged view of a position a in fig. 1, i.e., a common double-sided tape structure applied to fig. 1, and sequentially includes a finished tape 1, a double-sided tape 5, a handle film 4, and an auxiliary tape 2. It can be seen that, under the state that the die-cut product supplies for the coiled material, because roll core is circular, the product covers on roll core, every book all can have a relative power, when roll number increases the product relative power of interior roll core can increase along with to, further result in finished product and the adhesion that the material area is more "firm", after further adhesion, the customer when using, need tear the product from the material area and leave, lead to interior roll position bad, the proportion is about 5%.
The existing technology is direct with supplementary material area from the type face to the type face of releasing in finished product material area, and the finished product presss from both sides between supplementary material area and finished product material area, along with roll up the change of core diameter size and produce the effort of corresponding size, leads to the abnormal conditions to appear in the finished product, and common abnormal conditions includes: when a user uses a finished product, the automatic machine cannot take the material; the finished product has glue overflow due to extrusion.
Disclosure of Invention
The invention aims to solve the problems and provide a double-sided adhesive tape for a flexible circuit board and a processing method thereof, which can avoid the acting force of a winding core on a finished product.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a double-sided tape for flexible circuit board, this double-sided tape includes finished product material area, finished product and supplementary material area, finished product material area and supplementary material area press from both sides the finished product in the centre, double-sided tape is still including increasing the strip, it is close to the finished product setting to increase the strip, one end and supplementary material area fixed connection, other end and finished product material area separable connection, the thickness that increases the strip is greater than off-the-shelf thickness.
Furthermore, the height increasing strip comprises a fixed end and a free end, an adhesive layer is arranged on the end face, connected with the auxiliary material strip, of the fixed end, the height increasing strip is fixed on the auxiliary material strip through the adhesive layer, the adhesive layer is connected with one end of a release face of the auxiliary material strip, the release face is coated with silicone oil, the adhesive force of the adhesive layer and the release face coated with the silicone oil needs to be 60-130G, when the adhesive layer is independently tested on a steel plate, the adhesive force of the adhesive layer can be larger than 800G, the height increasing strip is guaranteed not to deviate in the process of rolling, and after a user uses the auxiliary material strip and the height increasing strip are used as industrial waste products together. Further preferably, the height-increasing strips are made of a plurality of synthetic materials, so that the height-increasing strips are not extruded and deformed when the double-sided adhesive tape is processed, and the double-sided adhesive tape is not deformed due to gravity.
Furthermore, the width of the adhesive layer is 1/4-1 times of the width of the heightening strip, and when the width of the adhesive layer is 1/4 times of the width of the heightening strip, the adhesive layer is distributed on two side edges of the end face, connected with the fixed end and the auxiliary material strip, so that the heightening strip is tightly attached to the auxiliary material strip and is not easy to be torn by a foreign object; when the width of the adhesive layer is 1 time of the width of the heightening strip, the end face of the fixed end connected with the auxiliary material strip is completely covered; when the width of the adhesive layer is greater than 1/4 times of the width of the heightening strip and less than 1 time of the width of the heightening strip, the distribution mode can refer to the distribution mode of 1/4 times.
Further, the heightening strips are arranged on the side edges of the auxiliary material belt in pairs and are aligned with the side faces of the auxiliary material belt. Increase the strip and set up in pairs and can guarantee that the space height between finished product and the supplementary material area keeps unanimous at the side in supplementary material area, contactless between the two, reduce because the supplementary material area of gravity part down with the condition of finished product contact, and increase the side of strip and supplementary material area and align mutually, avoid appearing supplementary material area and increase the condition that the strip peeled off mutually.
Further, the finished product comprises a handle film and a double-sided adhesive tape, the handle film is fixed on the finished product material belt through the double-sided adhesive tape, and the width of the handle film is smaller than that of the auxiliary material belt.
Furthermore, the width of the heightening strip is 2.0-3.0mm, and the distance between the handle film and the heightening strip is 1.0-5.0 mm. The width can be set and defined according to the specific requirements of the double-sided adhesive tape.
Furthermore, the cross section of the heightening strip is rectangular and is easy to process.
Further, the handle membrane includes laminating portion and carries the portion of drawing, and laminating portion and double faced adhesive tape are laminated mutually, carry the side of the portion of drawing locating laminating portion, carry and be equipped with on the portion of drawing and carry and draw the mouth. Further preferably, the lifting opening is circular, C-shaped, cross-shaped or rice-shaped.
Furthermore, the finished products are grouped into a group and arranged along the width direction of the finished product material belt.
A processing method of a double-sided adhesive tape for a flexible circuit board comprises the following specific steps: and adhering the heightening strips to the side edges of the auxiliary material belt, fixing the finished product on the finished product material belt, and connecting the finished product material belt and the auxiliary material belt.
Further, supplementary material area is including from the profile and not from the profile, and it paints to adopt silicon oil from the profile, will increase the strip and fix on supplementary material area, openly relative from the profile with the stiff end that increases the strip and be equipped with the adhesion coating, and finished product material area is including from the profile and not from the profile, paints from profile adoption silicon oil, locates the finished product material area on the profile that leaves, when connecting finished product material area and supplementary material area, the finished product orientation increases the strip.
According to the invention, the heightening strips are added on two side edges of the auxiliary material belt, the other ends of the heightening strips are supported on the finished product material belt to form a space for accommodating a finished product, the thickness of the heightening strips is higher than that of the finished product, so that the finished product is not contacted with the auxiliary material belt and is only contacted with the finished product material belt, namely the finished product and the auxiliary material belt are suspended, thus the relative acting force of a winding core acts on the heightening strips, the relative acting force generated due to the change of the diameter of the winding core does not act on the finished product, the finished product is further prevented from being extruded, and the phenomenon of glue overflow or other conditions caused by winding of the finished product is avoided. In order to better support the auxiliary material belt and the finished material belt by the heightening strips, the material of the heightening strips and the adhesive layer on the heightening strips are limited to a certain extent. Compared with the prior art, the automatic glue dispensing device can effectively avoid the situation that an automatic machine cannot dispense materials or glue overflows from an adhesive tape, and is simple in structure and easy to popularize.
Drawings
FIG. 1 is a schematic view of a conventional double-sided adhesive tape die-cut structure;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic view showing a structure of die-cutting the double-sided adhesive tape of the present invention;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is a top view of a double-sided adhesive tape for a flexible circuit board;
fig. 6 is a schematic structural view of the handle film.
In the figure: 1-finished material belt; 2-auxiliary material belt; 3-heightening strips; 4-handle film; 5-double sided adhesive tape; 6-a bonding part; 7-a pulling part; 8-lifting the mouth; 9-core of winding.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
As shown in fig. 3, the structure of die cutting the double-sided adhesive tape of the present invention is schematically shown, the core 9 is located in the middle, and the arrow without number mark on the side is acting force.
As shown in fig. 4, which is an enlarged view of B in fig. 3, a double-sided adhesive tape for a flexible circuit board according to the present invention, the double-sided tape comprises a finished product material belt 1, a finished product and an auxiliary material belt 2, wherein the finished product material belt 1 and the auxiliary material belt 2 clamp the finished product in the middle, the finished product comprises a handle film 4 and a double-sided adhesive tape 5, the handle film 4 is fixed on the finished product material belt 1 by the double-sided adhesive tape 5, the double-sided adhesive tape also comprises heightening strips 3, the heightening strips 3 are made of various synthetic materials and are arranged on the side edges of the auxiliary material belt 2 in pairs, aligned with the side surface of the auxiliary material belt 2 and not contacted with the finished product, the heightening strip 3 comprises a fixed end and a free end, the end surface of the fixed end connected with the auxiliary material belt 2 is provided with an adhesive layer, the adhesive layer fixes the height increasing strips 3 on the auxiliary material belt 2, the free end is not provided with the adhesive layer, the free end is detachably connected with the finished material belt 1, and the thickness of the height increasing strips 3 is larger than that of the finished product. The adhesive force between the adhesive layer on the heightening strip 3 and the release surface of the auxiliary material strip coated with the silicone oil is 60-130G, when the adhesive layer is independently tested by a steel plate, the adhesive force of the adhesive layer can be more than 800G, and the width of the adhesive layer is 1/4-1 times of the width of the heightening strip.
The width of the heightening strips 3 is 2.0-3.0mm, the width of the handle film 4 is smaller than that of the auxiliary material strip 2, and the distance between the heightening strips 3 is 1.0-5.0 mm.
As shown in fig. 5, the finished product eight are grouped and arranged along the width direction of the finished material tape 1.
As shown in fig. 6, the handle film 4 includes a bonding portion 6 and a pulling portion 7, the bonding portion 6 is bonded to the double-sided tape 5, the pulling portion 7 is provided at a side of the bonding portion 6, and a pulling opening 8 is provided in the pulling portion 7.
A processing method of a double-sided adhesive tape for a flexible circuit board specifically comprises the following steps: the heightening strips 3 are adhered to the side edges of the auxiliary material belt 2, the finished product is fixed on the finished product material belt 1, and then the finished product material belt 1 is connected with the auxiliary material belt 2. Wherein, supplementary material area 2 includes from the profile and not from the profile, adopts silicon oil to paint from the profile, will increase strip 3 and fix when supplementary material takes, openly relative from the profile with the stiff end that increases strip 3 and be equipped with the adhesion coating, finished product material area 1 includes from the profile and not from the profile, adopts silicon oil to paint from the profile, locates finished product material area 1 on the profile that leaves with the finished product, when connecting finished product material area 1 and supplementary material area 2, the finished product orientation increases strip 3.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. The utility model provides a double-sided tape for flexible circuit board, this double-sided tape includes finished product material area (1), finished product and supplementary material area (2), finished product material area (1) and supplementary material area (2) press from both sides the finished product in the centre, its characterized in that, double-sided tape is still including increasing strip (3), it sets up to increase strip (3) neighbouring finished product, one end and supplementary material area (2) fixed connection, the other end and finished product material area (1) separable connection, the thickness that increases strip (3) is greater than off-the-shelf thickness.
2. A double-sided adhesive tape for flexible circuit boards according to claim 1, characterized in that the height increasing strips (3) comprise fixed ends and free ends, the end surfaces of the fixed ends connected with the auxiliary material tape (2) are provided with adhesive layers, and the adhesive layers fix the height increasing strips (3) on the auxiliary material tape (2).
3. The double-sided tape for flexible circuit boards as claimed in claim 2, wherein the width of the adhesive layer is 1/4-1 times the width of the raised strip.
4. A double-sided adhesive tape for flexible circuit boards according to claim 1, characterized in that the heightening strips (3) are arranged in pairs at the side edges of the auxiliary tape (2) in alignment with the side surfaces of the auxiliary tape (2).
5. Double-sided adhesive tape for flexible circuit boards according to claim 1, characterized in that the finished product comprises a handle film (4) and a double-sided adhesive tape (5), the double-sided adhesive tape (5) fixes the handle film (4) on the finished product tape (1), the width of the handle film (4) is smaller than the width of the auxiliary tape (2).
6. A double-sided tape for flexible circuit boards according to claim 5, characterized in that the width of the heightening strip (3) is 2.0-3.0mm, and the distance between the handle film (4) and the heightening strip (3) is 1.0-5.0 mm.
7. The double-sided tape for the flexible circuit board as claimed in claim 5, wherein the handle film (4) comprises a fitting portion (6) and a lifting portion (7), the fitting portion (6) is fitted with the double-sided tape (5), the lifting portion (7) is provided at a side edge of the fitting portion (6), and a lifting opening (8) is provided on the lifting portion (7).
8. A double-sided adhesive tape for flexible circuit boards according to claim 1, characterized in that the finished plurality is in a group and arranged in the width direction of the finished strip (1).
9. A method of processing a double-sided adhesive tape for flexible circuit boards according to any one of claims 1 to 8, characterized in that the method comprises: the heightening strips (3) are adhered to the side edges of the auxiliary material belts (2), the finished product is fixed on the finished product material belt (1), and then the finished product material belt (1) is connected with the auxiliary material belts (2).
10. The processing method of the double-sided tape for the flexible circuit board according to claim 9, wherein the auxiliary tape (2) comprises a release surface and a non-release surface, the release surface is coated with silicone oil, when the heightening strip (3) is fixed on the auxiliary tape (2), the release surface is opposite to the fixed end of the heightening strip (3) with the adhesive layer, the finished tape (1) comprises the release surface and the non-release surface, the release surface is coated with silicone oil, the finished tape is arranged on the release surface of the finished tape (1), and when the finished tape (1) is connected with the auxiliary tape (2), the finished tape faces the heightening strip (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063020.2A CN112812693A (en) | 2019-10-31 | 2019-10-31 | Double-sided adhesive tape for flexible circuit board and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063020.2A CN112812693A (en) | 2019-10-31 | 2019-10-31 | Double-sided adhesive tape for flexible circuit board and processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112812693A true CN112812693A (en) | 2021-05-18 |
Family
ID=75851436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911063020.2A Pending CN112812693A (en) | 2019-10-31 | 2019-10-31 | Double-sided adhesive tape for flexible circuit board and processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112812693A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762021A (en) * | 2015-03-26 | 2015-07-08 | 深圳市伟铂瑞信科技有限公司 | Double sided adhesive tape processing method without adhesive overflow |
| CN206999113U (en) * | 2017-05-23 | 2018-02-13 | 昊佰电子科技（上海）有限公司 | It is a kind of to be used for the die-cutting apparatus with handle double faced adhesive tape |
| CN207344719U (en) * | 2017-09-22 | 2018-05-11 | 昊佰电子科技（上海）有限公司 | It is a kind of for Kapton product without knife stamp cutting apparatus |
| JP6327576B1 (en) * | 2017-02-01 | 2018-05-23 | 下村 恭一 | Double-sided tape |
| CN207845545U (en) * | 2017-12-06 | 2018-09-11 | 昊佰电子科技（上海）有限公司 | A kind of double faced adhesive tape for flexible PCB |
| CN109531694A (en) * | 2017-09-22 | 2019-03-29 | 昊佰电子科技（上海）有限公司 | A kind of Kapton product without knife stamp blanking method and die-cutting apparatus |
| CN209364808U (en) * | 2018-12-27 | 2019-09-10 | 昊佰电子科技（上海）有限公司 | It is a kind of for minimizing the die-cutting apparatus of double-sided adhesive product |
| CN209440296U (en) * | 2018-12-27 | 2019-09-27 | 昊佰电子科技（上海）有限公司 | A kind of die-cutting apparatus for the multilayer polyimide product with handle |
| CN209537371U (en) * | 2018-12-10 | 2019-10-25 | 苏州达翔新材料有限公司 | A kind of adhesive article material strip |
-
2019
- 2019-10-31 CN CN201911063020.2A patent/CN112812693A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762021A (en) * | 2015-03-26 | 2015-07-08 | 深圳市伟铂瑞信科技有限公司 | Double sided adhesive tape processing method without adhesive overflow |
| JP6327576B1 (en) * | 2017-02-01 | 2018-05-23 | 下村 恭一 | Double-sided tape |
| CN206999113U (en) * | 2017-05-23 | 2018-02-13 | 昊佰电子科技（上海）有限公司 | It is a kind of to be used for the die-cutting apparatus with handle double faced adhesive tape |
| CN207344719U (en) * | 2017-09-22 | 2018-05-11 | 昊佰电子科技（上海）有限公司 | It is a kind of for Kapton product without knife stamp cutting apparatus |
| CN109531694A (en) * | 2017-09-22 | 2019-03-29 | 昊佰电子科技（上海）有限公司 | A kind of Kapton product without knife stamp blanking method and die-cutting apparatus |
| CN207845545U (en) * | 2017-12-06 | 2018-09-11 | 昊佰电子科技（上海）有限公司 | A kind of double faced adhesive tape for flexible PCB |
| CN209537371U (en) * | 2018-12-10 | 2019-10-25 | 苏州达翔新材料有限公司 | A kind of adhesive article material strip |
| CN209364808U (en) * | 2018-12-27 | 2019-09-10 | 昊佰电子科技（上海）有限公司 | It is a kind of for minimizing the die-cutting apparatus of double-sided adhesive product |
| CN209440296U (en) * | 2018-12-27 | 2019-09-27 | 昊佰电子科技（上海）有限公司 | A kind of die-cutting apparatus for the multilayer polyimide product with handle |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210518 |
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| RJ01 | Rejection of invention patent application after publication |