CN109796900A - A kind of height is viscous without base material adhesive tape preparation method - Google Patents
A kind of height is viscous without base material adhesive tape preparation method Download PDFInfo
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- CN109796900A CN109796900A CN201811625298.XA CN201811625298A CN109796900A CN 109796900 A CN109796900 A CN 109796900A CN 201811625298 A CN201811625298 A CN 201811625298A CN 109796900 A CN109796900 A CN 109796900A
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- China
- Prior art keywords
- release film
- adhesive tape
- base material
- preparation
- glues
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Abstract
The present invention relates to no substrate double faced adhesive tape technical field, specifically a kind of height is viscous without base material adhesive tape preparation method, comprising the following steps: suitable inorganic filler is added in a, using acrylate pressure sensitive adhesive, when mixing, stirs；B, the mixing stirred evenly is coated on 25um release film, the inorganic filler of larger specific gravity can be settled down to 25um release film side before glue curing drying；C, it after baking and curing, is bonded with 75um release film.Compared with prior art, the beneficial effects of the present invention are: (1) is realized by inorganic filler without the two-sided different viscosity of substrate pressure sensitive adhesive, the discrepant situation of two sides cementability is needed suitable for particular/special requirement；(2) one steps are made, and reduce the addition (while the substrates such as PET are added and need two production processes) of substrate such as PET, save cost, provide production yield.
Description
Technical field
The present invention relates to no substrate double faced adhesive tape technical field, specifically a kind of height is viscous without base material adhesive tape preparation side
Method.
Background technique
Existing no base material adhesive tape biadhesive is consistent, to some specific demands (needing adhesive tape two sides viscosity variant) nothing
Method meets；And traditional height adhesive tape needs that the materials such as PET is used to be coated as substrate on its two sides, increases production
Step increases cost, and yield is influenced and reduced；The height that this patent is related to is viscous without base material adhesive tape structure are as follows: blue
The discrepant no substrate pressure-sensitive adhesive layer+transparent release film of release film+two sides adhesion strength.(wherein blue release film is corresponding without base
The low viscous face of pressure-sensitive adhesive layer, the corresponding height without substrate pressure-sensitive adhesive layer of transparent release film glue face, and release film is using blue to product
High viscous and low viscous face is distinguished in use process)；The height that this patent is related to glues (two sides adhesion strength is variant) and answers without base material adhesive tape
For manufacturing, in electronic product assembling process, the bonding between two elements is produced due to some special process requirements
Product need to be designed to that two sides adhesion strength has certain gradient disparities.It is traditional without substrate double faced adhesive tape product, two-sided viscosity has glue
Water itself determines that two-sided adhesion strength is identical, wants the otherness for accomplishing two sides, adhesive can only be separated with one layer of substrate, that is, existed
Double spread is carried out on substrate, though traditional has substrate design to be easy to reach the otherness of two sides viscosity, complex process is needed
Want step more, it is at high cost.
Summary of the invention
It is viscous without base material adhesive tape preparation method that the technical problem to be solved in the present invention is to provide a kind of height, in traditional no base
Inorganic filler is added in material adhesive, using the hyperbaric characteristic of inorganic filler itself, so that the inorganic filler of less additive amount
It is settled down to the side of no substrate adhesive, the roughness for causing no substrate adhesive two-sided changes, and settles the roughness at end
It is promoted, is decreased so as to cause adhesion strength, and form the otherness without base material adhesive tape two sides viscosity.
In order to solve the above technical problems, that present invention discloses a kind of height is viscous without base material adhesive tape preparation method including following
Step:
A, using acrylate pressure sensitive adhesive, suitable inorganic filler is added in when mixing, is stirred；
B, the mixing stirred evenly is coated on the first release film, inorganic filler can settle before glue curing drying
To the first release film side；
C, it after baking and curing, is bonded with the second release film.
In a specific embodiment of the invention, the inorganic filler is metal oxide.
In a specific embodiment of the invention, the inorganic filler is spherical powder, and partial size is 5~50 μm.
In a specific embodiment of the invention, the inorganic filler is the aluminum oxide that partial size is 10 μm.
In a specific embodiment of the invention, the weight ratio of the inorganic filler and the adhesive is 5%~
50%.
In a specific embodiment of the invention, the acrylate pressure sensitive adhesive could alternatively be PU high and glue pressure sensitive adhesive.
In a specific embodiment of the invention, first release film is PET silicone release film, with a thickness of 25
~125 μm.
In a specific embodiment of the invention, first release film with a thickness of 25 μm.
In a specific embodiment of the invention, second release film is PET silicone release film, with a thickness of 25
~125 μm.
In a specific embodiment of the invention, second release film with a thickness of 75 μm.
In a specific embodiment of the invention, first release film is coloured release film, second release film
For transparent release film.Preferably, first release film is blue release film.
Compared with prior art, the beneficial effects of the present invention are: (1) is two-sided without substrate pressure sensitive adhesive by inorganic filler realization
Different viscosity, need the discrepant situation of two sides cementability suitable for particular/special requirement.(2) one steps are made, and reduce substrate such as PET's
(while the substrates such as PET are added and need two production processes) is added, saves cost, production yield is provided.
Detailed description of the invention
Fig. 1 is instant component schematic diagram；
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
A kind of height is viscous without base material adhesive tape preparation method, comprising the following steps:
A, using acrylate pressure sensitive adhesive, suitable inorganic filler is added in when mixing, is stirred；
B, the mixing stirred evenly is coated on the first release film, the inorganic filler of larger specific gravity can be dried in glue curing
The first release film side is settled down to before dry；
C, it after baking and curing, is bonded with the second release film.
Wherein, first release film is coloured release film, and second release film is transparent release film.Preferably, institute
The first release film is stated as blue release film.
Further, the inorganic filler is mainly metal oxide, such as AL2O3The equal biggish spherical powder of specific gravity, partial size
Between 5 μm -50 μm, inorganic filler is with adhesive weight ratio according to specific adhesion strength difference in 5%-50% or so.
Further, the acrylate pressure sensitive adhesive could alternatively be the viscous pressure sensitive adhesive of PU high, and specific mixing process can suitably add
Add ethyl acetate class solvent.
Further, first release film is PET silicone release film, and release film is with a thickness of 25-125 μm, preferably 25 μ
m。
Further, second release film is PET silicone release film, and release film is with a thickness of 25-125 μm, preferably 75 μ
m。
Below by a specific embodiment to further illustrate the technical scheme of the present invention.
A, pressure sensitive adhesive is glued using acrylic acid height to be sufficiently stirred with appropriate ethyl acetate, add 10%AL2O3(10 μm of left sides of partial size
It is right) inorganic filler, be coated on the first release film (distinguishing sticky weight) of blue；
B, it after hot setting, is bonded, is wound with the product of above-mentioned a with the second transparent release film.
The present invention adds inorganic filler in traditional no substrate adhesive, utilizes the hyperbaric spy of inorganic filler itself
Property causes two-sided thick of no substrate adhesive so that the inorganic filler of less additive amount is settled down to the side of no substrate adhesive
Rugosity changes, and the roughness for settling end is promoted, and decreases so as to cause adhesion strength, and is formed viscous without base material adhesive tape two sides
The otherness of property.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of height is viscous without base material adhesive tape preparation method, which comprises the following steps:
A, using acrylate pressure sensitive adhesive, suitable inorganic filler is added in when mixing, is stirred；
B, the mixing stirred evenly is coated on the first release film, inorganic filler can be settled down to the before glue curing drying
One release film side；
C, it after baking and curing, is bonded with the second release film.
2. a kind of height according to claim 1 glues the preparation method without base material adhesive tape, which is characterized in that described inorganic to fill out
Material is metal oxide.
3. a kind of height according to claim 2 glues the preparation method without base material adhesive tape, which is characterized in that described inorganic to fill out
Material is spherical powder, and partial size is 5~50 μm.
4. a kind of height according to claim 2 glues the preparation method without base material adhesive tape, which is characterized in that described inorganic to fill out
Material is the aluminum oxide that partial size is 10 μm.
5. a kind of height according to claim 2 glues the preparation method without base material adhesive tape, which is characterized in that described inorganic to fill out
The weight ratio of material and the adhesive is 5%~50%.
6. a kind of height according to claim 1 glues the preparation method without base material adhesive tape, which is characterized in that the acrylic acid
Pressure sensitive adhesive could alternatively be PU high and glue pressure sensitive adhesive.
7. a kind of height according to claim 1 glues the preparation method without base material adhesive tape, which is characterized in that described first from
Type film is PET silicone release film, with a thickness of 25~125 μm；Second release film is PET silicone release film, thick
Degree is 25~125 μm.
8. a kind of height according to claim 7 glues the preparation method without base material adhesive tape, which is characterized in that described first from
Type film with a thickness of 25 μm.
9. a kind of height according to claim 7 glues the preparation method without base material adhesive tape, which is characterized in that described second from
Type film with a thickness of 75 μm.
10. a kind of height according to claim 1 glues the preparation method without base material adhesive tape, which is characterized in that described first
Release film is coloured release film, and second release film is transparent release film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625298.XA CN109796900A (en) | 2018-12-28 | 2018-12-28 | A kind of height is viscous without base material adhesive tape preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625298.XA CN109796900A (en) | 2018-12-28 | 2018-12-28 | A kind of height is viscous without base material adhesive tape preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109796900A true CN109796900A (en) | 2019-05-24 |
Family
ID=66558098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811625298.XA Pending CN109796900A (en) | 2018-12-28 | 2018-12-28 | A kind of height is viscous without base material adhesive tape preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109796900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114672255A (en) * | 2022-04-27 | 2022-06-28 | 东莞爵士先进电子应用材料有限公司 | Production process of solvent type super-thick substrate-free double faced adhesive tape |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002275433A (en) * | 2001-03-16 | 2002-09-25 | Hitachi Chem Co Ltd | Adhesive film |
| CN102504712A (en) * | 2011-11-17 | 2012-06-20 | 北京天山新材料技术股份有限公司 | Double-sided pressure sensitive adhesive tape capable of movement in short time, and preparation method thereof |
-
2018
- 2018-12-28 CN CN201811625298.XA patent/CN109796900A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002275433A (en) * | 2001-03-16 | 2002-09-25 | Hitachi Chem Co Ltd | Adhesive film |
| CN102504712A (en) * | 2011-11-17 | 2012-06-20 | 北京天山新材料技术股份有限公司 | Double-sided pressure sensitive adhesive tape capable of movement in short time, and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114672255A (en) * | 2022-04-27 | 2022-06-28 | 东莞爵士先进电子应用材料有限公司 | Production process of solvent type super-thick substrate-free double faced adhesive tape |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190524 |
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| RJ01 | Rejection of invention patent application after publication |