CN111454673A - Improved adhesive product - Google Patents
Improved adhesive product Download PDFInfo
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- CN111454673A CN111454673A CN202010434020.5A CN202010434020A CN111454673A CN 111454673 A CN111454673 A CN 111454673A CN 202010434020 A CN202010434020 A CN 202010434020A CN 111454673 A CN111454673 A CN 111454673A
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- Prior art keywords
- layer
- adhesive
- release
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- laminating
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- 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
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/403—Adhesives in the form of films or foils characterised by release liners characterised by the structure of the release feature
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- 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
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/405—Adhesives in the form of films or foils characterised by release liners characterised by the substrate of the release liner
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- 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
- C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
- C09J9/02—Electrically-conducting adhesives
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses an improved adhesive product, which comprises composite release paper and a conductive adhesive layer coated on the composite release paper, and is characterized in that: the composite release paper sequentially comprises a first release layer, a first laminating film layer, a base material, a second laminating film layer and a second release layer, wherein the coating gram weight of the first laminating film layer is 15-30g/m2The coating gram weight of the second laminating layer is 25-50g/m2. The improved adhesive product effectively improves the flatness of the adhesive coated surface, solves the problem of mottling after adhesive coating, solves the problem of adhesive mottling formed by the protrusion of conductive particles after rolling, and has uniform thickness and smaller tolerance of the whole adhesive tape.
Description
Technical Field
The invention relates to the technical field of adhesives, in particular to an improved adhesive product.
Background
In the electronic industry, the release layer of the conductive adhesive tape generally uses PEK double-sided release paper with release force difference on two sides, and the PEK double-sided release paper is thick and relatively soft, so that the PEK double-sided release paper is very suitable for producing the conductive adhesive tape with thicker thickness or light adhesive surface color, and can effectively solve the appearance problems of adhesive surface adhesive decoration and the like caused by the fact that a conductive material protrudes out of the adhesive surface and is rolled; however, as the electronic industry develops to be light and thin, the required thickness of the conductive adhesive tape is thinner and thinner, the conductivity is higher and higher, the amount of the added conductive powder is increased, and the color of the adhesive surface is correspondingly deepened; at the moment, the disadvantages of large thickness tolerance and poor surface flatness of the PEK double-sided release paper can be completely reflected, so that the large thickness tolerance of the glue layer, the spots and a large number of white spots on the glue surface can be caused, and the poor performance stability and the abnormal appearance of the glue layer can be caused. When the double-sided release film with the release force difference on the two sides is used as the release layer, the problem of adhesive surface adhesive decoration caused by the protrusion of the conductive powder can also occur.
Therefore, in order to overcome the defects of the prior art, a completely new adhesive tape needs to be developed.
Disclosure of Invention
The invention aims to provide an improved adhesive product which has a flat adhesive surface and is not easy to generate mottling after being coated with adhesive.
In order to achieve the purpose, the invention provides an improved adhesive product, which comprises composite release paper and a conductive adhesive layer coated on the composite release paper, wherein the composite release paper sequentially comprises a first release layer, a first laminating layer, a substrate, a second laminating layer and a second release layer, and the coating gram weight of the first laminating layer is 15-30g/m2The coating gram weight of the second laminating layer is 25-50g/m2。
As a further improvement of the present invention, the conductive adhesive layer is coated on the first release layer.
As a further improvement of the invention, the first and second lamination layers are made of PET.
As a further improvement of the invention, the composite release paper further comprises a composite adhesive layer coated on the first laminating layer.
As a further improvement of the invention, the composite release paper further comprises a PET film layer positioned between the first release layer and the composite adhesive layer.
As a further improvement of the invention, the thickness of the PET film layer is 12-50 μm.
As a further improvement of the invention, the thickness of the composite adhesive layer is 10-50 μm, and the viscosity is not less than 1.5kg/25 mm.
As a further improvement of the present invention, the first release layer and the second release layer are both an organic silicon release layer.
As a further improvement of the invention, the release force ratio of the first release layer and the second release layer is not less than 1.5.
As a further improvement of the invention, the thickness of the conductive adhesive layer is 2-30 μm.
The invention has the beneficial effects that:
the improved adhesive product effectively improves the flatness of the adhesive coated surface, solves the problem of mottling after adhesive coating, solves the problem of adhesive mottling formed by the protrusion of conductive particles after rolling, and has uniform thickness and smaller tolerance of the whole adhesive tape.
Drawings
FIG. 1 is a block diagram of an improved adhesive article of the invention.
Detailed Description
The invention will be described in detail hereinafter with reference to specific embodiments shown in the drawings.
The invention provides an improved adhesive product 100, which comprises composite release paper 200 and a conductive adhesive layer 300 coated on the composite release paper, wherein the composite release paper 200 sequentially comprises a first release layer 1, a first laminating film layer 2, a substrate 3, a second laminating film layer 4 and a second release layer 5. The coating gram weight of the first laminating layer is 15-30g/m2The coating gram weight of the second laminating layer is 25-50g/m2。
The conductive adhesive layer is coated on the first release layer, the first lamination film layer and the second lamination film layer are made of PET, the composite release paper further comprises a composite adhesive layer 6 coated on the first lamination film layer, the composite release paper further comprises a PET film layer 7 located between the first release layer and the composite adhesive layer, the thickness of the PET film layer is 12-50 mu m, the thickness of the composite adhesive layer is 10-50 mu m, and the viscosity is not less than 1.5kg/25 mm.
The first release layer and the second release layer are both organic silicon release layers, and the release force ratio of the first release layer to the second release layer is not less than 1.5.
The thickness of the conductive adhesive layer is 2-30 mu m, and the conductive adhesive layer consists of 20-40% of acrylic resin, 10-30% of conductive filler and 25-50% of solvent; wherein, the acrylic resin comprises oily acrylic glue and a curing agent, and the adding weight ratio of the two materials is 100: between 0.5 and 100: 3; acrylic resin with the viscosity of 3000-10000CPS and the glass transition Temperature (TG) -25-40 ℃ is coated on a 25-umPET film, the thickness of dry glue is 20um, the viscosity is more than 0.8kg/25mm, the curing agent is isocyanate curing agent, including but not limited to diphenylmethane diisocyanate and dicyclohexylmethane diisocyanate, and the conductive filler is one or more of metal powder nickel powder, silver-coated copper powder and aluminum powder.
In order to better embody the advantageous effects of the present invention, the following description is further made in conjunction with specific comparative examples and examples.
Example 1
This embodiment provides an improved generation adhesive product, including compound from type paper and scribble the conductive adhesive layer on it, compound from type paper includes in proper order that first from type layer, first drench rete, substrate, second drench rete and second from type layer. The coating gram weight of the first laminating layer is 15g/m2The coating gram weight of the second film coating layer is 25g/m2。
Example 2
This embodiment provides an improved generation adhesive product, including compound from type paper and scribble the conductive adhesive layer on it, compound from type paper includes in proper order that first from type layer, first drench rete, substrate, second drench rete and second from type layer. The coating gram weight of the first laminating layer is 30g/m2The coating gram weight of the second film coating layer is 45g/m2。
Example 3
This embodiment provides an improved generation adhesive product, including compound from type paper and scribble the conductive adhesive layer on it, compound from type paper includes in proper order that first from type layer, first drench rete, substrate, second drench rete and second from type layer. The coating gram weight of the first laminating layer is 15g/m2The coating gram weight of the second laminating layer is 35g/m2。
Example 4
This embodiment provides an improved generation adhesive product, including compound from type paper and scribble the conductive adhesive layer on it, compound from type paper includes in proper order that first from type layer, first drench rete, substrate, second drench rete and second from type layer. The coating gram weight of the first laminating layer is 20g/m2The coating gram weight of the second film coating layer is 50g/m2。
Example 5
This embodiment provides an improved generation adhesive product, including compound from type paper and scribble the conductive adhesive layer on it, compound from type paper includes in proper order that first from type layer, first drench rete, substrate, second drench rete and second from type layer. The coating gram weight of the first laminating layer is 21g/m2The coating gram weight of the second film coating layer is 38g/m2。
Example 6
This embodiment provides an improved generation adhesive product, including compound from type paper and scribble the conductive adhesive layer on it, compound from type paper includes in proper order that first from type layer, PET thin layer, compound adhesive layer, first drench membrane layer, substrate, second drench membrane layer and second from type layer. The coating gram weight of the first laminating layer is 21g/m2The coating gram weight of the second film coating layer is 38g/m2The thickness of the composite adhesive layer is 24 μm.
Example 7
This embodiment provides an improved generation adhesive product, including compound from type paper and scribble the conductive adhesive layer on it, compound from type paper includes in proper order that first from type layer, PET thin layer, compound adhesive layer, first drench membrane layer, substrate, second drench membrane layer and second from type layer. The coating gram weight of the first laminating layer is 16g/m2The coating gram weight of the second film coating layer is 30g/m2The thickness of the composite adhesive layer is 10 μm.
Example 8
This embodiment provides an improved adhesive article, a packageThe composite release paper comprises a first release layer, a PET (polyethylene terephthalate) film layer, a composite adhesive layer, a first laminating film layer, a base material, a second laminating film layer and a second release layer. The coating gram weight of the first laminating layer is 30g/m2The coating gram weight of the second film coating layer is 48g/m2The thickness of the composite adhesive layer is 40 μm.
Example 9
This embodiment provides an improved generation adhesive product, including compound from type paper and scribble the conductive adhesive layer on it, compound from type paper includes in proper order that first from type layer, PET thin layer, compound adhesive layer, first drench membrane layer, substrate, second drench membrane layer and second from type layer. The coating gram weight of the first laminating layer is 18g/m2The coating gram weight of the second laminating layer is 33g/m2The thickness of the composite adhesive layer is 50 μm.
Example 10
This embodiment provides an improved generation adhesive product, including compound from type paper and scribble the conductive adhesive layer on it, compound from type paper includes in proper order that first from type layer, PET thin layer, compound adhesive layer, first drench membrane layer, substrate, second drench membrane layer and second from type layer. The coating gram weight of the first laminating layer is 18g/m2The coating gram weight of the second film coating layer is 42g/m2The thickness of the composite adhesive layer was 30 μm.
Comparative example 1
This embodiment provides an improved generation adhesive product, including compound from type paper and scribble the conductive adhesive layer on it, compound from type paper includes in proper order that first from type layer, first drench rete, substrate, second drench rete and second from type layer. The coating gram weight of the first laminating layer is 5g/m2The coating gram weight of the second film coating layer is 10g/m2。
Comparative example 2
The embodiment provides an improved adhesive product, which comprises a composite release paper and a conductive adhesive layer coated on the composite release paper, wherein the composite release paper comprises a first layer and a second layerThe molded paper comprises a first release layer, a first laminating film layer, a base material, a second laminating film layer and a second release layer in sequence. The coating gram weight of the first laminating layer is 35g/m2The coating gram weight of the second film coating layer is 60g/m2。
The adhesive tape samples of examples 1 to 10 and comparative examples 1 to 2 were compared and observed to obtain the following results,
1. after comparing the examples 1-5 with the comparative examples 1-2, it is found that the sample adhesive tape in the comparative examples 1-2 has the problem of adhesive stains, and has a convex defect on the adhesive surface, and the flatness is not high, while the sample adhesive tape in the examples 1-5 effectively solves the problem of adhesive stains, has high surface flatness, and significantly reduces the overall tolerance of the adhesive tape, so that it can be seen that the adhesive stains can be effectively solved by effectively controlling the grammage of the second lamination layer, and the overall flatness of the adhesive tape is significantly improved, but the grammage of the second lamination layer is additionally increased, and an opposite effect is generated, so that it is very important to select a reasonable grammage of the lamination, and the defects and problems in the prior art can be effectively overcome.
2. Comparing examples 6-10 and examples 1-5, it is found that the sample tapes in examples 6-10 have higher flatness and smaller tolerance than those in examples 1-5, and the problem of easy mottling after gluing is solved more effectively, so that it can be seen that adding the PET film layer and the composite adhesive base layer under the first release layer further significantly improves the technical effect of the present invention. And the thickness of the composite adhesive base layer is reasonably selected to effectively compensate the paper thickness tolerance, so that the whole thickness is more uniform, the tolerance is smaller, and the influence of the paper thickness on the thickness of the conductive adhesive tape is reduced.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. An improved adhesive product comprises composite release paper and a conductive adhesive layer coated on the composite release paper, and is characterized in that: the composite release paper sequentially comprises a first release layer, a first laminating film layer, a base material, a second laminating film layer and a second release layer, wherein the coating gram weight of the first laminating film layer is 15-30g/m2The coating gram weight of the second laminating layer is 25-50g/m2。
2. The improved adhesive article of claim 1, wherein: the conductive adhesive layer is coated on the first release layer.
3. The improved adhesive article of claim 1, wherein: the first laminating layer and the second laminating layer are made of PET.
4. The improved adhesive article of claim 1, wherein: the composite release paper also comprises a composite adhesive layer coated on the first laminating film layer.
5. An improved adhesive article as defined in claim 4, wherein: the composite release paper further comprises a PET film layer positioned between the first release layer and the composite adhesive layer.
6. An improved adhesive article as defined in claim 4, wherein: the thickness of the PET film layer is 12-50 μm.
7. An improved adhesive article as defined in claim 4, wherein: the thickness of the composite adhesive layer is 10-50 μm, and the viscosity is not less than 1.5kg/25 mm.
8. The improved adhesive article of claim 1, wherein: the first release layer and the second release layer are both organic silicon release layers.
9. The improved adhesive article of claim 1, wherein: the release force ratio of the first release layer to the second release layer is not less than 1.5.
10. The improved adhesive article of claim 1, wherein: the thickness of the conductive adhesive layer is 2-30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010434020.5A CN111454673A (en) | 2020-05-21 | 2020-05-21 | Improved adhesive product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010434020.5A CN111454673A (en) | 2020-05-21 | 2020-05-21 | Improved adhesive product |
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| CN111454673A true CN111454673A (en) | 2020-07-28 |
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| CN202010434020.5A Pending CN111454673A (en) | 2020-05-21 | 2020-05-21 | Improved adhesive product |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709559A (en) * | 2009-09-15 | 2010-05-19 | 苏州斯迪克电子胶粘材料有限公司 | High-brightness release paper, and preparation method and applications thereof |
| CN201598532U (en) * | 2009-09-15 | 2010-10-06 | 苏州斯迪克电子胶粘材料有限公司 | Highlight surface release paper |
| CN103147357A (en) * | 2011-07-12 | 2013-06-12 | 苏州斯迪克新材料科技股份有限公司 | Preparation method of matte release paper |
| CN209353164U (en) * | 2018-11-21 | 2019-09-06 | 江阴西联复合材料有限公司 | High temperature resistant double-sided release paper |
-
2020
- 2020-05-21 CN CN202010434020.5A patent/CN111454673A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709559A (en) * | 2009-09-15 | 2010-05-19 | 苏州斯迪克电子胶粘材料有限公司 | High-brightness release paper, and preparation method and applications thereof |
| CN201598532U (en) * | 2009-09-15 | 2010-10-06 | 苏州斯迪克电子胶粘材料有限公司 | Highlight surface release paper |
| CN103147357A (en) * | 2011-07-12 | 2013-06-12 | 苏州斯迪克新材料科技股份有限公司 | Preparation method of matte release paper |
| CN209353164U (en) * | 2018-11-21 | 2019-09-06 | 江阴西联复合材料有限公司 | High temperature resistant double-sided release paper |
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