CN116554799A - Processing technology of teflon adhesive tape - Google Patents

Processing technology of teflon adhesive tape Download PDF

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Publication number
CN116554799A
CN116554799A CN202310580827.3A CN202310580827A CN116554799A CN 116554799 A CN116554799 A CN 116554799A CN 202310580827 A CN202310580827 A CN 202310580827A CN 116554799 A CN116554799 A CN 116554799A
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CN
China
Prior art keywords
film
double
teflon
sided adhesive
adhesive tape
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Pending
Application number
CN202310580827.3A
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Chinese (zh)
Inventor
何允灼
杨显明
刘林华
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Dongguan Risheng Insulation Products Co ltd
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Dongguan Risheng Insulation Products Co ltd
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Priority to CN202310580827.3A priority Critical patent/CN116554799A/en
Publication of CN116554799A publication Critical patent/CN116554799A/en
Pending legal-status Critical Current

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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
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
    • C09J2301/162—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer the carrier being a laminate constituted by plastic layers only
    • 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
    • C09J2423/00—Presence of polyolefin
    • C09J2423/04—Presence of homo or copolymers of ethene
    • C09J2423/046—Presence of homo or copolymers of ethene in the substrate
    • 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
    • C09J2427/00—Presence of halogenated polymer
    • C09J2427/006—Presence of halogenated polymer in the substrate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Adhesive Tapes (AREA)

Abstract

The application relates to the technical field of adhesive tapes, in particular to a processing technology of a teflon adhesive tape. The method comprises the following steps: sequentially attaching the protective film, the teflon film, the single-sided adhesive tape and the first double-sided adhesive tape to obtain a first composite film for later use; attaching the second double-sided adhesive tape to the first release film to obtain a second composite film, die-cutting the second composite film, and removing waste to obtain a third composite film for later use; 2) And (3) attaching one side of the first double-sided adhesive tape of the first composite film to one side of the second double-sided adhesive tape of the third composite film to obtain a fourth composite film, die-cutting the fourth composite film, and removing waste materials to obtain the teflon adhesive tape.

Description

Processing technology of teflon adhesive tape
Technical Field
The application relates to the technical field of adhesive tapes, in particular to a processing technology of a teflon adhesive tape.
Background
The adhesive tape consists of a base material and an adhesive, and two or more unconnected objects are connected together through adhesion. The adhesive tape can be divided into: high temperature adhesive tape, double sided adhesive tape, insulating tape, special adhesive tape, pressure sensitive adhesive tape, die cut adhesive tape, different effects are suitable for different industry demands.
For example, teflon tape, also known as teflon tape, or teflon adhesive tape. Firstly, adopting glass fiber as base cloth, coating with teflon emulsion, and drying to obtain teflon glass fiber cloth. And then the high-temperature-resistant adhesive tape is prepared by coating silicon adhesive for the second time.
The teflon adhesive tape has the advantages of better strength, wear resistance, high temperature resistance, smooth surface, anti-adhesion, brightness, electrical insulation, resistance to various chemical corrosion and the like, so that the teflon adhesive tape is widely applied to the industries of packaging, thermoplastic, compounding, sealing heat sealing, electronics, electrics and the like.
Along with the progress of scientific technology, the requirements of people on the quality of substances are higher and higher, and the products are especially 3C products such as notebooks, mobile phones, mice, keyboards, game machines, automobiles and the like, so that the performance requirements of the 3C products are strict, and meanwhile, the appearance, the shell packaging and the like of the 3C products are also strictly required.
Usually, before using, the teflon adhesive tape needs to be die-cut into a shape suitable for the corresponding 3C product, so that the teflon adhesive tape is convenient to use in the 3C product, and therefore, the die-cutting requirement is strict. However, when the Teflon adhesive tape is die-cut, wrinkles are easy to occur or the die-cut size is not precise enough, and meanwhile, when the Teflon adhesive tape is attached to a 3C product, the Teflon adhesive tape attached to a 3C consumer electronic product is also caused to easily wrinkle due to pulling, so that the problem of unstable adhesion is caused, and the aesthetic property and the adhesion of the Teflon adhesive tape to the 3C product are reduced, so that further research on the Teflon adhesive tape is needed.
Disclosure of Invention
In order to reduce the wrinkles generated in the die cutting process of the teflon adhesive tape or reduce the wrinkles generated by pulling when the teflon adhesive tape is used on a 3C product, the problem of unstable adhesion is solved.
The application provides a processing technology of a teflon adhesive tape, which is characterized by comprising the following steps:
1) Sequentially attaching the protective film, the teflon film, the single-sided adhesive tape and the first double-sided adhesive tape to obtain a first composite film for later use;
attaching the second double-sided adhesive tape to the first release film to obtain a second composite film, die-cutting the second composite film, and removing waste to obtain a third composite film for later use;
2) And (3) attaching one side of the first double-sided adhesive tape of the first composite film to one side of the second double-sided adhesive tape of the third composite film to obtain a fourth composite film, and die-cutting the fourth composite film to enable the fourth composite film to appear, so that the teflon adhesive tape is obtained.
The teflon adhesive tape formed through the above adding process is stable in structure, does not generate wrinkles, and is not easy to wrinkle when being attached to a 3C product, so that the teflon adhesive tape is stable in surface adhesion with the 3C product, the possibility of falling off is not easy to occur, and the attractiveness and the adhesion stability are improved.
The surface of the teflon film is protected by the protective film, so that the possibility of dirt, foreign matters adhering, scratches, damages, crush injuries, corrosion, oxidation and the like on the surface of the teflon tape in the transportation or production process is reduced.
The single-sided adhesive tape is attached to the teflon film, so that the connection effect is achieved, the thickness and hardness of the product are increased, the teflon film is not easy to wrinkle, and the effects of compression resistance, torsion resistance, tensile resistance and the like are achieved.
Through attaching first double faced adhesive tape and second double faced adhesive tape, increase indisputable fluorine dragon sticky tape thickness, adhesion and pliability, when attaching at 3C product, pull the process and can play the cushioning effect, and then reduce indisputable fluorine dragon sticky tape and attach behind the 3C product, its surface appearance fold's possibility.
And can protect the second double faced adhesive tape with first release film, reduce its dust of adsorbing, be convenient for indisputable fluorine dragon sticky tape carries out the rolling, when indisputable fluorine dragon sticky tape is attached at 3C product, tear indisputable fluorine dragon sticky tape, with its subsides on 3C product again, after the subsides is stable, tear protection film gently again.
In conclusion, the first composite film with stable structure is obtained by sequentially laminating the protective film, the teflon film, the single-sided adhesive tape and the first double-sided adhesive tape. And die cutting is carried out after the second double-sided adhesive tape is attached to the first release film, and the film of the frame is cut off, so that the phenomenon of wrinkles occurs in the die cutting process due to the fact that the protection of the first release film to the second double-sided adhesive tape is reduced. And then the first composite film and the third composite film are compounded and die-cut to obtain the teflon adhesive tape, the teflon adhesive tape is not easy to wrinkle, and the buffer effect can be achieved due to the two layers of double-sided adhesive tapes, so that the wrinkling phenomenon can not be caused by pulling when the teflon adhesive tape is attached, the flatness and the attaching stability of the teflon adhesive tape are improved, and the teflon adhesive tape is attached to a 3C product more attractive and stable in adhesion. The practicability is improved.
Preferably, the protective film is a PE protective film; the adhesive surface of the PE protective film is attached to one surface of the teflon film, and the thickness of the PE protective film is 0.040-0.050t.
The PE protective film is formed by taking a PE film as a base material, wherein one surface of the PE film is coated with adhesive glue, the protective film is inert to the surface of a protected material and has good adhesive property to the protected material, and the protective film cannot warp and fall off in the material handling and processing processes; meanwhile, the adhesive has better weather resistance and adhesive force stability, the peeling force is not obviously increased after a plurality of days or long-term adhesion, the adhesive is easy to tear off, no residual adhesive remains on the protected surface during the tearing off, no shadow exists, therefore, the PE protective film is adopted to protect the teflon film, and the possibility of scraping, dirt and the like on the surface of the teflon adhesive tape in the transportation process is reduced.
Note that t is an abbreviation for thickness of english.
The PE protective film with the thickness of 0.040-0.050t is adopted, so that the PE protective film is easier to tear, residual glue is not remained on the surface of the Teflon adhesive tape, and the possibility of edge warping is avoided.
Preferably, the thickness of the teflon film is 0.35-0.55t.
The teflon film with the thickness range is in a preferred range, the teflon film with the thickness range and PET single-sided adhesive are stable, and wrinkles are not easy to occur in the die cutting and attaching processes, and the teflon film with the thickness has good strength, wear resistance, high temperature resistance, smooth surface, anti-adhesion, brightness, electrical insulation, various chemical corrosion resistance and the like, and can be used for products in the 3C field.
Preferably, the single-sided adhesive is PET single-sided adhesive, the adhesive surface of the PET single-sided adhesive is attached to the adhesive surface of the Teflon film, and the thickness of the PET single-sided adhesive is 0.05-0.08t.
The PET single-sided adhesive tape is formed by taking a PET film as a base material and coating glue on the surface of the PET film. The PET single-sided adhesive tape has good adhesion, can be stably adhered to the teflon film, and has good tensile strength, impact strength, heat resistance, dimensional stability and the like, so that the PET single-sided adhesive tape and the teflon film are compounded, the thickness of the teflon tape can be increased, and the possibility of wrinkling when the teflon tape is pulled or die-cut can be reduced.
Preferably, the first double faced adhesive tape and the second double faced adhesive tape are 3M9075 double faced adhesive tapes.
The 3M9075 double-sided adhesive tape is a non-woven fabric base material double-sided adhesive tape in the 3M double-sided adhesive tape, is made by coating acrylic acid adhesive on the double sides of the non-woven fabric, has semitransparent white color, durability and good temperature resistance, and simultaneously has good waterproof property, good rebound resilience, strong adhesive force, easy die cutting processing, good adhesion to plastics, rubber and nameplates and the like, so that the 3M9075 double-sided adhesive tape is adopted to ensure that the layer structure of the Teflon adhesive tape is stably adhered, and can be stably connected to the surface of the Teflon adhesive tape when the Teflon adhesive tape is used in a 3C product, and the possibility of falling off is reduced.
Preferably, the thickness of the first double-sided adhesive is 0.06-0.10t; the thickness of the second double faced adhesive tape is 0.11-1.15t.
The two double faced adhesive tapes are different in overall dimension, the first double faced adhesive tape is smaller than the second double faced adhesive tape by 0.5mm, in the second punching process, the two double faced adhesive tape edges have a step of 0.5mm, the edge die cutting of the teflon adhesive tape can form an arc angle, and the smoothness of the teflon adhesive tape is improved. Meanwhile, the teflon adhesive tape is stably adhered to the 3C product.
Preferably, the thickness of the first release film is 0.065-0.085t.
The first release film with the thickness is selected to better assist the second double-sided adhesive tape to die-cut, so that the possibility of wrinkling of the second double-sided adhesive tape is reduced.
Preferably, the die cutting process in 1) specifically includes: tearing a layer of release paper on the second double-sided adhesive surface to enable the second double-sided adhesive to leak out of the adhesive surface, and then attaching the adhesive surface of the second double-sided adhesive to the first release film; tearing off the release paper on the other side of the second double-sided adhesive surface, replacing the release paper with a second release film to obtain a second composite film, putting the second composite film into a die cutting machine for die cutting, enabling the first double-sided adhesive and the second release film on the frame of the second composite film to be cut and broken, collecting frame waste, tearing off the second release film, replacing the second release film with a third release film, rolling to obtain a third composite film, and collecting waste for later use.
Through replacing the release paper on the second double-sided adhesive tape with a first release layer and a second release layer, the first double-sided adhesive tape is shaped, the phenomenon that the second double-sided adhesive tape is wrinkled in the die cutting process is reduced, or the second double-sided adhesive tape is easy to deviate, the die cutting process is not accurate enough, the size and the attached area are not compact when being used for 3C products, and the attractiveness is influenced.
The second release film is replaced by the third release film, so that the third composite film is convenient to roll, the thickness of the second release film is 0.075t, the thickness of the third release film is 0.025t, the second release film is thinner and easier to roll, and the phenomenon of wrinkles is reduced when the second release film is thicker and easier to die cut.
For example, when the teflon tape for the mouse is produced, the teflon tape has better surface smoothness, anti-adhesion, brightness, electrical insulation and other properties, so that the bottom of the teflon tape commonly used for the mouse plays a role in assisting sliding, and is convenient for sliding, as shown in fig. 1, an attaching groove is formed at the bottom of the mouse, the teflon tape is attached in the attaching groove, the size and the shape of the teflon tape are die-cut according to the requirement, and the size and the shape of the die-cut are guaranteed to be just attached to the attaching groove in the die-cutting process. And the die cutting process and the attaching process are also ensured not to be wrinkled, so that the bonding stability of the teflon adhesive tape is improved.
If the size and shape of the teflon tape do not accord with the mouse attaching groove, if the size and shape of the teflon tape are too small, the mouse attaching groove can be vacated to some positions to influence the appearance, and if the size and shape of the teflon tape are too large, part of the teflon tape protrudes out of the mouse attaching groove, so that the teflon tape is not stably bonded, and is easy to fall off.
Preferably, after die cutting in the step 1), positioning small holes are formed on the frame of the second composite film, and the first release film, the first double-sided adhesive tape and the second release film at the positioning small holes are all die-cut and broken.
Through setting up the location aperture, be convenient for follow-up advance the location aspect when carrying out the die again, carry out the orientation, improve the accuracy of cross cutting. The obtained teflon adhesive tape is just in line with the attached 3C consumer product attaching area, so that the attractive appearance and the adhesive stability of the teflon adhesive tape are improved.
Preferably, tearing off release paper on the other side of the first double-sided adhesive of the first composite film, tearing off the other side adhesive surface of the first double-sided adhesive of the first composite film, tearing off the third release film of the third composite film, enabling the second double-sided adhesive of the third composite film to be exposed out of the other side adhesive surface, bonding the other side adhesive surface of the second double-sided adhesive of the third composite film with the other side adhesive surface of the first double-sided adhesive of the first composite film, attaching a layer of high-temperature adhesive tape on the protective layer of the first composite film, and cutting to obtain a fourth composite film; and then placing the fourth composite film into a die cutting machine, enabling the positioning small holes of the fourth composite film to be aligned with the positioning pins in the die cutting die, and then performing die cutting to remove waste materials of the frame and the high-temperature adhesive tape, thereby obtaining the teflon adhesive tape.
In the scheme, the high-temperature adhesive tape is subjected to auxiliary die cutting, the phenomenon of wrinkling in the die cutting process is reduced, and the positioning needle is aligned to the positioning hole, so that the high-temperature adhesive tape is accurately subjected to die cutting, and the size of the adhesive tape after die cutting is accurate.
In summary, the present application has the following beneficial effects:
and laminating the protective film, the teflon film, the single-sided adhesive tape and the first double-sided adhesive tape in sequence to obtain the first composite film with stable structure. And die cutting is carried out after the second double-sided adhesive tape is attached to the first release film, and the film of the frame is cut off, so that the phenomenon of wrinkles occurs in the die cutting process due to the fact that the protection of the first release film to the second double-sided adhesive tape is reduced. And then the first composite film and the third composite film are compounded and die-cut to obtain the teflon adhesive tape, the teflon adhesive tape is not easy to wrinkle, and the buffer effect can be achieved due to the two layers of double-sided adhesive tapes, so that the wrinkling phenomenon can not be caused by pulling when the teflon adhesive tape is attached, the flatness and the attaching stability of the teflon adhesive tape are improved, and the teflon adhesive tape is attached to a 3C product more attractive and stable in adhesion. The practicability is improved.
Drawings
Fig. 1 is a schematic structural view of a teflon tape attached to the bottom of a mouse.
Fig. 2 is a schematic diagram of a teflon tape layer structure.
Detailed Description
The present application is described in further detail below with reference to fig. 1 and examples.
Examples
Example 1
A processing technology of a teflon adhesive tape comprises the following steps:
1) Tearing off release paper on the PE protective film by adopting laminating equipment to enable the PE protective film to leak out of the adhesive surface, and then laminating the adhesive surface of the PE protective film with one surface of the teflon film; tearing off release paper on the PET single-sided adhesive to enable the PET single-sided adhesive to leak out of the adhesive surface, and attaching the adhesive surface of the PET single-sided adhesive to the other surface of the Teflon film; tearing off release paper on one side of the first double-sided adhesive to enable the first double-sided adhesive to leak out of the adhesive surface, and attaching the adhesive surface of the first double-sided adhesive to a PET (polyethylene terephthalate) base material of the PET single-sided adhesive to obtain a first composite film for later use;
tearing a layer of release paper on the second double-sided adhesive surface by adopting laminating equipment to enable the second double-sided adhesive to leak out of the adhesive surface, and then laminating the adhesive surface of the second double-sided adhesive with the first release film; tearing off the release paper on the other side of the second double-sided adhesive surface, replacing the release paper with a second release film to obtain a second composite film, putting the second composite film into a die cutting machine for die cutting, enabling the first double-sided adhesive on the frame of the second composite film and the second release film to be cut and broken after die cutting, simultaneously forming a positioning hole on the second composite film, collecting waste materials, collecting frame waste materials, tearing off the second release film, replacing the second release film with a third release film, rolling to obtain a third composite film, and collecting waste materials for later use.
2) Tearing off release paper on the other side of the first double-sided adhesive of the first composite film by adopting laminating equipment, tearing off the other side adhesive surface of the first double-sided adhesive of the first composite film, tearing off the third release film of the third composite film, enabling the second double-sided adhesive of the third composite film to be exposed out of the other side adhesive surface, laminating the other side adhesive surface of the second double-sided adhesive of the third composite film with the other side adhesive surface of the first double-sided adhesive of the first composite film, attaching a layer of high-temperature adhesive tape on the protective layer of the first composite film, and slitting to obtain a fourth composite film; and then placing the fourth composite film into a die cutting machine, enabling the positioning small holes of the fourth composite film to be aligned with the positioning pins in the die cutting die, then performing die cutting, enabling the edges of the first double-sided adhesive tape and the second double-sided adhesive tape to be die-cut to form arc angles, and removing waste materials of the frame and the high-temperature adhesive tape to obtain the teflon adhesive tape.
Wherein, the thickness of the PE protective film is 0.050t; the first double faced adhesive tape and the second double faced adhesive tape are 3M9075 double faced adhesive tapes. The thickness of the first double-sided adhesive is 0.08t; the thickness of the second double faced adhesive tape is 013t; the thickness of the PET single-sided adhesive tape is 0.05t.
The first release film, the second release film and the third release film are PET films, the thickness of the first release film is 0.075t, and the thickness of the first release film and the thickness of the second release film are the same. The thickness of the third release film was 0.025t. The high-temperature adhesive tape refers to an adhesive tape with high temperature resistance, which is used for assisting die cutting, for example, the thickness of the high-temperature adhesive tape is 0.05t (without a release film).
The layer structure of the teflon tape is shown in fig. 2.
Example 2
Example 2 differs from example 1 in that: the thickness of the first double faced adhesive tape is 0.06t, and the thickness of the second double faced adhesive tape is 0.11t.
Example 3
Example 3 differs from example 1 in that: the thickness of the first double faced adhesive tape is 0.10t, and the thickness of the second double faced adhesive tape is 1.15t.
Example 4
Example 4 differs from example 1 in that: the thickness of the PET single-sided adhesive tape is 0.06t.
Example 5
Example 5 differs from example 1 in that: the thickness of the PET single-sided adhesive tape is 0.08t.
Comparative example
Comparative example 1
Comparative example 1 differs from example 1 in that there is no second double-sided adhesive, and the specific process is as follows:
1) Tearing off release paper on the PE protective film by adopting laminating equipment to enable the PE protective film to leak out of the adhesive surface, and then laminating the adhesive surface of the PE protective film with one surface of the teflon film; tearing off release paper on the PET single-sided adhesive to enable the PET single-sided adhesive to leak out of the adhesive surface, and attaching the adhesive surface of the PET single-sided adhesive to the other surface of the Teflon film; tearing off release paper on one side of the first double-sided adhesive to enable the first double-sided adhesive to leak out of the adhesive surface, and attaching the adhesive surface of the first double-sided adhesive to a PET (polyethylene terephthalate) base material of the PET single-sided adhesive to obtain a first composite film for later use;
2) Tearing off release paper on the other side of the first double-sided adhesive of the first composite film by adopting laminating equipment, so that the other side adhesive surface of the first double-sided adhesive of the first composite film is exposed, laminating the first release film with the other side adhesive surface of the first double-sided adhesive of the first composite film, then attaching a layer of high-temperature adhesive tape on a protective layer of the first composite film, and then cutting to obtain a fourth composite film; and then placing the fourth composite film into a die cutting machine, enabling the positioning small holes of the fourth composite film to be aligned with the positioning pins in the die cutting die, then performing die cutting, enabling the edges of the first double-sided adhesive tape and the second double-sided adhesive tape to be die-cut to form arc angles, and removing waste materials of the frame and the high-temperature adhesive tape to obtain the teflon adhesive tape.
Comparative example 2
Comparative example 2 differs from example 1 in that there is no single jersey of PET, the specific process of the first composite film is as follows: tearing off the release paper on the PE protective film to enable the PE protective film to leak out of the adhesive surface, and then attaching the adhesive surface of the PE protective film to one surface of the Teflon film; tearing off release paper on one side of the first double-sided adhesive, enabling the first double-sided adhesive to leak out of the adhesive surface, and attaching the adhesive surface of the first double-sided adhesive to the other side of the teflon film to obtain a first composite film for later use.
Comparative example 3
Comparative example 3 is different from example 3 in that: the thickness of the first double faced adhesive tape is equal to that of the second double faced adhesive tape, and the thickness of the first double faced adhesive tape and the thickness of the second double faced adhesive tape are both 0.10t.
Comparative example 4
Comparative example 4 differs from comparative example 1 in that: the thickness of the first double-sided adhesive was 0.21t.
Performance test
Detection method/test method
The teflon tapes obtained in examples 1 to 5 and comparative examples 1 to 4 were subjected to the following performance test.
1. Temperature resistance test
Testing the sample by using the Teflon adhesive tape, wherein the test time is 24 hours at the temperature of 65 ℃ and the humidity of 90% RH; then the mixture is put into a low temperature of minus 20 ℃ and humidity of 0 percent RH for 24 hours, and the mixture is taken out to observe whether the surface has the phenomena of foaming, delamination and the like, and if the surface is disqualified, the surface is not qualified, and the specific is shown in the table 1.
1. Adhesion stability peel force: the teflon tapes obtained in examples 1-5 and comparative examples 1-4 were 25mm by 300mm as test samples. The peel force was measured by a tensile test, the test was performed in accordance with GB/T2792-98 and GB/T2918-1998, the test was performed three times by reversing the temperature to 180℃and the average was taken, and the specific data are shown in Table 1.
2. Appearance of
The teflon tapes obtained in examples 1-5 and comparative examples 1-4 were subjected to observation to determine whether wrinkles appear on the surfaces, and then attached to the surfaces of the PC boards, wherein the attachment area is 10 x 10cm, and whether wrinkles appear is determined, if wrinkles appear, the teflon tapes are disqualified, and if wrinkles appear, the teflon tapes are qualified, and specific data are shown in table 1;
TABLE 1 Experimental data for examples 1-5 and comparative examples 1-4
As can be seen in combination with example 1 and comparative examples 1 and 4 and with table 1, the peel force of example 1 is as high as 2.60kg, whereas the peel force of comparative example 1 is only 1.18kg, differing by 1.42kg; while the peel force of comparative example 4 was 1.69kg, which is different from example by 0.91kg, it was revealed that the double-sided adhesive tape using two layers was excellent in adhesion and the phenomenon of wrinkles was not likely to occur. And then the explanation this application adopts first double faced adhesive tape and second double faced adhesive tape structure, can not only improve the adhesion of indisputable fluorine dragon sticky tape, but also can reduce indisputable fluorine dragon sticky tape and pull at the use, and lead to the phenomenon that appears the fold.
As can be seen from the combination of example 1 and comparative example 2, comparative example 2 shows a wrinkling phenomenon, and the peeling force does not change much, which indicates that the teflon tape is liable to wrinkle during processing and use when the PET single-sided tape is not added.
As can be seen from comparative examples 1 and 3, the peel force of comparative example 3 was reduced, indicating that the teflon tape in the range of the first double sided adhesive thickness and the second double sided adhesive thickness of the present application was able to actually have better adhesion.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.

Claims (10)

1. The processing technology of the teflon adhesive tape is characterized by comprising the following steps of:
1) Sequentially attaching the protective film, the teflon film, the single-sided adhesive tape and the first double-sided adhesive tape to obtain a first composite film for later use;
attaching the second double-sided adhesive tape to the first release film to obtain a second composite film, die-cutting the second composite film, and removing waste to obtain a third composite film for later use;
2) And (3) attaching one side of the first double-sided adhesive tape of the first composite film to one side of the second double-sided adhesive tape of the third composite film to obtain a fourth composite film, die-cutting the fourth composite film, and removing waste materials to obtain the teflon adhesive tape.
2. The process for manufacturing the teflon tape according to claim 1, wherein the process comprises the following steps: the protective film is a PE protective film; the adhesive surface of the PE protective film is attached to one surface of the teflon film, and the thickness of the PE protective film is 0.040-0.050t.
3. The process for manufacturing the teflon tape according to claim 1, wherein the process comprises the following steps: the thickness of the teflon film is 0.35-0.55t.
4. The process for manufacturing the teflon tape according to claim 1, wherein the process comprises the following steps: the single-sided adhesive is PET single-sided adhesive, the adhesive surface of the PET single-sided adhesive is attached to the adhesive surface of the teflon film, and the thickness of the PET single-sided adhesive is 0.05-0.08t.
5. The process for manufacturing the teflon tape according to claim 1, wherein the process comprises the following steps: the first double faced adhesive tape and the second double faced adhesive tape are 3M9075 double faced adhesive tapes.
6. The process for manufacturing the teflon tape according to claim 1, wherein the process comprises the following steps: the thickness of the first double-sided adhesive is 0.06-0.10t; the thickness of the second double faced adhesive tape is 0.11-1.15t.
7. The process for manufacturing the teflon tape according to claim 1, wherein the process comprises the following steps: the thickness of the first release film is 0.065-0.085t.
8. The process for producing teflon tapes according to any of the claims from 1 to 6, characterized in that said die-cutting process in 1) is in particular: tearing a layer of release paper on the second double-sided adhesive surface to enable the second double-sided adhesive to leak out of the adhesive surface, and then attaching the adhesive surface of the second double-sided adhesive to the first release film; tearing off the release paper on the other side of the second double-sided adhesive surface, replacing the release paper with a second release film to obtain a second composite film, putting the second composite film into a die cutting machine for die cutting, enabling the first double-sided adhesive and the second release film on the frame of the second composite film to be cut and broken, collecting frame waste, tearing off the second release film, replacing the second release film with a third release film, rolling to obtain a third composite film, and collecting waste for later use.
9. The process according to claim 8, wherein after die-cutting in 1), positioning small holes are formed on the frame of the second composite film, and the first release film, the first double-sided adhesive tape and the second release film at the positioning small holes are die-cut and broken.
10. The process for manufacturing the teflon tape according to claim 9, wherein: tearing off release paper on the other side of the first double-sided adhesive of the first composite film to enable the other side adhesive surface of the first double-sided adhesive of the first composite film to be exposed, tearing off the third release film of the third composite film to enable the second double-sided adhesive of the third composite film to be exposed to the other side adhesive surface, bonding the second double-sided adhesive of the third composite film to the other side adhesive surface of the first double-sided adhesive of the first composite film, attaching a layer of high-temperature adhesive tape to the protective layer of the first composite film, and cutting to obtain a fourth composite film; and then placing the fourth composite film into a die cutting machine, enabling the positioning small holes of the fourth composite film to be aligned with the positioning pins in the die cutting die, and then performing die cutting to remove waste materials of the frame and the high-temperature adhesive tape, thereby obtaining the teflon adhesive tape.
CN202310580827.3A 2023-05-22 2023-05-22 Processing technology of teflon adhesive tape Pending CN116554799A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200331951Y1 (en) * 2003-05-07 2003-11-03 조진만 Tape which is attached the bottom of mouse
CN206580771U (en) * 2017-03-22 2017-10-24 泰兴市昊华复合材料有限公司 A kind of Teflon adhesive tape
CN206680435U (en) * 2017-03-22 2017-11-28 泰兴市昊华复合材料有限公司 A kind of wear-resistant anti-aging Teflon adhesive tape
CN107962855A (en) * 2017-12-23 2018-04-27 路德通电子设备（北京）有限公司 A kind of extraction knife technique for protective film production
CN211079020U (en) * 2019-12-03 2020-07-24 苏州久东电子材料有限公司 Insulating adhesive tape with good protective performance
CN216106720U (en) * 2020-08-21 2022-03-22 马桂林 Mouse foot paste

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200331951Y1 (en) * 2003-05-07 2003-11-03 조진만 Tape which is attached the bottom of mouse
CN206580771U (en) * 2017-03-22 2017-10-24 泰兴市昊华复合材料有限公司 A kind of Teflon adhesive tape
CN206680435U (en) * 2017-03-22 2017-11-28 泰兴市昊华复合材料有限公司 A kind of wear-resistant anti-aging Teflon adhesive tape
CN107962855A (en) * 2017-12-23 2018-04-27 路德通电子设备（北京）有限公司 A kind of extraction knife technique for protective film production
CN211079020U (en) * 2019-12-03 2020-07-24 苏州久东电子材料有限公司 Insulating adhesive tape with good protective performance
CN216106720U (en) * 2020-08-21 2022-03-22 马桂林 Mouse foot paste

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