CN116716058B - Dustproof and waterproof gauze composite film processing technology and product thereof - Google Patents
Dustproof and waterproof gauze composite film processing technology and product thereof Download PDFInfo
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- CN116716058B CN116716058B CN202310589208.0A CN202310589208A CN116716058B CN 116716058 B CN116716058 B CN 116716058B CN 202310589208 A CN202310589208 A CN 202310589208A CN 116716058 B CN116716058 B CN 116716058B
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- 239000002131 composite material Substances 0.000 title claims abstract description 167
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000012545 processing Methods 0.000 title claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 252
- 239000012790 adhesive layer Substances 0.000 claims abstract description 128
- 239000002313 adhesive film Substances 0.000 claims abstract description 125
- 238000005520 cutting process Methods 0.000 claims abstract description 65
- 230000001681 protective effect Effects 0.000 claims abstract description 50
- 238000013329 compounding Methods 0.000 claims abstract description 31
- 239000002699 waste material Substances 0.000 claims abstract description 19
- 238000004080 punching Methods 0.000 claims abstract description 16
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 13
- 238000012546 transfer Methods 0.000 claims description 12
- 238000004064 recycling Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000011109 contamination Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 17
- 239000002390 adhesive tape Substances 0.000 description 11
- 230000002950 deficient Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920004933 Terylene® Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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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
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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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing 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
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/26—Presence of textile or fabric
- C09J2400/263—Presence of textile or fabric in the substrate
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The application relates to the technical field of dustproof and waterproof gauze composite membrane processing technology, in particular to a dustproof and waterproof gauze composite membrane processing technology and a product thereof, and the dustproof and waterproof gauze composite membrane processing technology comprises the following preparation steps: s1: compounding the first protective film, the first double-sided adhesive film and the second double-sided adhesive film, die cutting and punching to obtain a first compound film; s2, recovering base paper of the first double-sided adhesive film to obtain a second double-sided adhesive film and an A composite film layer, wherein the A composite film layer comprises a first protective film layer and a first double-sided adhesive layer, adhering the first gauze layer to the surface of the first double-sided adhesive film to obtain a B composite film layer, and compositing the second double-sided adhesive film and the B composite film layer; s3, recovering the base paper in the second double-sided adhesive film layer, adhering the second gauze layer on the surface of the second double-sided adhesive film layer, performing die cutting, collecting waste materials to obtain the dustproof and waterproof gauze composite film, and rolling, so that the time of exposing the adhesive layer in the preparation of the dustproof and waterproof gauze composite film to the air can be reduced, and the contamination of the adhesive layer with impurities can be reduced.
Description
Technical Field
The application relates to the technical field of dustproof and waterproof gauze composite membrane processing technology, in particular to a dustproof and waterproof gauze composite membrane processing technology and a product thereof.
Background
Electronic products such as mobile phones, headphones, flat panels and computers are provided with loudspeaker devices, and the loudspeaker devices are provided with loudspeaker holes. The horn hole is open, dust and sucked water are easy to accumulate, and the use of the loudspeaker device is affected, so that the dustproof and waterproof gauze composite film is required to protect the horn hole.
The existing dustproof and waterproof gauze composite film is a film with a multilayer structure and mainly comprises a protective layer, a gauze layer, an adhesive layer and the like, wherein the gauze layer can be made of materials such as nano-nylon, nylon and terylene and is used for preventing water and dust, the protective layer and the adhesive layer can be combined in a release mode and used for protecting the pressure-sensitive adhesive layer, and the pressure-sensitive adhesive layer has adhesive characteristics and is used for adhering the nylon gauze layer to the surface of a bearing object. When in use, the protective film layer is torn off, and the gauze layer is adhered on the surface of the carrier by the adhesive layer.
However, in order to improve the waterproof and dustproof effect of the dustproof and waterproof gauze composite film, the sound quality of the loudspeaker is not affected, multiple gauze layers are often used in a composite mode, the gauze layers are generally stacked one by one, die cutting and punching are needed to be carried out once every time when the gauze layers are stacked, the whole production line is longer in the operation process, the adhesive layer is exposed to the air for a long time, impurities are easy to adsorb, the viscosity of the adhesive layer is reduced, and the connection stability between the gauze layers is further affected, so that improvement is needed.
Disclosure of Invention
In order to solve the problem that the dustproof and waterproof gauze is easy to delaminate, the application provides a dustproof and waterproof gauze composite film processing technology.
In a first aspect, the present application provides a processing technology of a dustproof and waterproof gauze composite film, which adopts the following technical scheme: a processing technology of a dustproof and waterproof gauze composite film comprises the following preparation steps:
s1: compounding the first protective film, the first double-sided adhesive film and the second double-sided adhesive film, die cutting and punching to obtain a first compound film; s2, recycling release paper of the first double-sided adhesive film to obtain a second double-sided adhesive film layer and an A composite film layer, wherein the A composite film layer comprises a first protective film layer and a first double-sided adhesive layer, simultaneously, adhering a first gauze layer on the surface of the first double-sided adhesive film to obtain a B composite film layer, and compositing the second double-sided adhesive film layer and the B composite film layer;
s3, recovering the base paper in the second double-sided adhesive film layer, adhering the second gauze layer on the surface of the second double-sided adhesive film layer, die cutting, collecting waste materials, and obtaining the dustproof and waterproof gauze composite film, and winding.
By adopting the technical scheme, the time of exposing the adhesive layer in the preparation of the dustproof and waterproof gauze composite film to the air is reduced, and the impurity contamination of the adhesive layer is reduced. Simultaneously, through compounding two-layer double-sided adhesive film layer earlier in this application, the cross cutting, punch, install the gauze layer again between the double faced adhesive tape in proper order, through the complex of many times, improve viscose layer and gauze layer lug connection stability, do not need the stack layer by layer through above-mentioned operation, also do not need the stack one deck to just punch the operation, reduce the length of production line to reduce the time that the viscose layer exposes in the air.
The first protection film, the first double-sided adhesive film and the second double-sided adhesive film are compounded, firstly, the probability that the adhesive layer is stained with impurities is reduced in the process of attaching the gauze layer by the first double-sided adhesive film and the second double-sided adhesive film, secondly, the punching positions of the first double-sided adhesive film and the second double-sided adhesive film are identical, the punching is not required to be repeated in the subsequent process, the first double-sided adhesive film and the second double-sided adhesive film are attached again in the subsequent step 3, and the position of the first double-sided adhesive film and the second double-sided adhesive film is guaranteed not to deviate. The first protection film layer protects the first double-sided adhesive film layer from being in contact with the outside, protects the first double-sided adhesive film layer from being polluted, and is also a carrier for bearing a plurality of dustproof and waterproof gauze composite layers. When the dustproof and waterproof gauze composite layer is used, the dustproof and waterproof gauze composite layer is torn off from the first protective film, and then the first double-sided adhesive film is attached to the surface of a bearing object.
Through the die cutting operation of step S1 die cutting punching and step S3, a plurality of independent dustproof and waterproof gauze composite films are formed, and the first double-sided adhesive film and the second double-sided adhesive film in each independent dustproof and waterproof gauze composite film are annular, so that the first gauze layer and the second gauze layer can be bonded, and the waterproof, dustproof and other functions of the first gauze layer and the second gauze layer are not influenced.
Preferably, the composite discharging tension of the first double-sided adhesive film and the second double-sided adhesive film is controlled to be 0.1-0.5Kg/mm 2 The receiving tension of the base paper of the first double-sided adhesive film is controlled to be 0.2-0.4Kg/mm 2 。
By adopting the technical scheme, the first double-sided adhesive tape and the second double-sided adhesive tape are controlled to be stably adhered, and the base paper of the first double-sided adhesive tape is easily pulled out from between the first double-sided adhesive tape and the second double-sided adhesive tape. The positional relationship of the second double-sided adhesive layer of the first double-sided adhesive layer is not affected after the base paper of the first double-sided adhesive layer is extracted, so that the through holes of the first double-sided adhesive layer and the through holes of the second double-sided adhesive layer can be aligned.
Preferably, the stripping force difference between the first double-sided adhesive film and the second double-sided adhesive film is 5-15N/m.
By adopting the technical scheme, the base paper of the first double-sided adhesive film is conveniently pulled out from between the first double-sided adhesive layer and the second double-sided adhesive layer; if the difference of the stripping forces between the first double-sided adhesive film and the second double-sided adhesive film layer is larger than 15N/m, the base paper of the first double-sided adhesive film is possibly difficult to withdraw from between the first double-sided adhesive film and the second double-sided adhesive film, and even the base paper of the first double-sided adhesive film can bring out residual adhesive; if the glass force of the first double-sided adhesive film and the second double-sided adhesive film is smaller than 5N/m, the first double-sided adhesive film and the second double-sided adhesive film are likely to be misplaced and offset in the bonding process.
Preferably, the die cutting angle α in the die cutting in the step S3 is 30-80 ° or 100-150 °.
By adopting the technical scheme, the conditions of deformation, indentation, back adhesion, irregular edge cutting and the like of the first double-sided adhesive layer and the second double-sided adhesive layer in the die cutting process are prevented. The first double-sided adhesive layer and the second double-sided adhesive layer are sticky and easy to deform. When the die cutting rule cuts, the first double-sided adhesive layer and the second double-sided adhesive layer are extruded, so that the first double-sided adhesive layer and the second double-sided adhesive layer deform, the possibility that the first double-sided adhesive layer and the second double-sided adhesive layer deform due to extrusion of the cutting die is reduced by adjusting the die cutting angle alpha, and waste discharge is facilitated.
Preferably, the die cutting pressure in the die cutting in the step S3 is 100-500g/m 2 。
By adopting the technical scheme, the first double-sided adhesive layer and the second double-sided adhesive layer are cut off rapidly in the die cutting process, and no adhesive remains on the surface of the die cutting rule. If the die cutting pressure in the die cutting is less than 100g/m 2 The first double-sided adhesive layer or the second double-sided adhesive layer is possibly cut continuously, and the first gauze layer or the second gauze layer which needs to be left is taken away together in the process of waste material in the subsequent process; if the die cutting pressure in the die cutting is more than 500g/m 2 The die-cutting rule can deform, which is unfavorable for the subsequent die-cutting.
Preferably, the method further comprises a step S4, and the specific steps are as follows:
compounding a gauze protection film with a support film to obtain a D composite film, then compounding a dustproof and waterproof gauze composite film with the D composite film, wherein the second gauze layer is connected with the gauze protection film, then die-cutting and waste collecting are carried out to obtain a D' composite film, and then compounding a transfer film with the D composite film;
tearing off the transfer film again, and sucking away the first protective film layer by the transfer film to obtain an E composite film;
and then compounding the release protection film layer with the E composite film layer, recovering the support film and cutting the sheet to obtain the single dustproof and waterproof gauze composite film.
When the dustproof and waterproof gauze composite film is used, the dustproof and waterproof gauze composite layer is torn off from the first protective film, and then the first double-sided adhesive film is attached to the surface of the bearing object. When tearing off the dustproof and waterproof gauze composite layer, the first double-sided adhesive layer can be touched to pollute the first double-sided adhesive layer; in addition, because the dustproof and waterproof gauze composite layer is relatively thin and soft, the dustproof and waterproof gauze composite layer can be curled and adhered in the tearing process. In this regard, the first double-sided adhesive layer is preferably disposed on the outermost layer, and the carrier is attached to the first double-sided adhesive layer, so that the above problem can be completely eradicated.
Preferably, the hardness of the support film is higher than that of the gauze protective film, and the thickness is not lower than 0.5mm.
Through adopting above-mentioned technical scheme, improve the support dynamics that the gauze protection film was supported to the support membrane, gauze protection film is at the very bottom at first, receives gravity effect to sink easily, forms crooked form, produces the fold easily, and the support membrane can effectively reduce the gauze protection film bending, and then prevents that gauze protection film from appearing the fold phenomenon in the use.
In a second aspect, the present application provides a dustproof and waterproof gauze composite film, which adopts the following technical scheme:
the dustproof and waterproof gauze composite film comprises a protective film layer and a dustproof and waterproof gauze composite layer, wherein the dustproof and waterproof gauze composite layer comprises at least two groups of gauze layers, each gauze layer sequentially comprises a double-sided adhesive layer and a gauze layer, one group of double-sided adhesive layers is adhered to the protective film layer, and the other double-sided adhesive layers are connected with the adjacent gauze layers.
By adopting the technical scheme, the dustproof and waterproof gauze composite membrane prepared by the method has good connection stability, and is not easy to generate layering phenomenon in the using process.
Preferably, the dustproof and waterproof gauze composite film further comprises a release protective film layer and a gauze protective film layer, wherein the release protective film layer is connected with a double-sided adhesive layer of the innermost layer of the dustproof and waterproof gauze composite layer, and the gauze protective film layer is connected with a gauze layer of the outermost layer of the dustproof and waterproof gauze composite layer.
By adopting the technical scheme, the dustproof and waterproof gauze composite membrane can be divided into a plurality of small modules to be used independently, which is beneficial to.
Preferably, the thickness of the double-sided adhesive layers is 10-60um, and the thickness of the gauze layers is 0.02-0.2mm.
Through adopting above-mentioned technical scheme, optimize the thickness of double faced adhesive tape for the gauze layer can be connected steadily, simultaneously, difficult separation in the use.
In summary, the present application has the following beneficial effects:
1. the first protection film, the first double-sided adhesive film and the second double-sided adhesive film are compounded, die cutting and punching are carried out, and a first composite film is obtained; recovering the base paper of the first double-sided adhesive film to obtain a second double-sided adhesive film and an A composite film layer, wherein the A composite film layer comprises a first protective film layer and a first double-sided adhesive layer, adhering the first gauze layer on the surface of the first double-sided adhesive film to obtain a B composite film layer, and compositing the second double-sided adhesive film and the B composite film layer; and finally, recovering the base paper in the second double-sided adhesive film layer, adhering the second gauze layer on the surface of the second double-sided adhesive film layer, performing die cutting, collecting waste materials, and obtaining the dustproof and waterproof gauze composite film, and rolling. The length of the production line can be shortened through the process, the time that the flat adhesive layer is exposed to the air is reduced, and the adhesive layer is infected with impurities. Meanwhile, the two double-sided adhesive film layers are compounded, die-cut and perforated, and then the gauze layer is sequentially arranged between the double-sided adhesive films, and the adhesive layer and the gauze layer are improved to be directly connected stably through multiple compounding.
Drawings
Fig. 1 is a schematic structural view of a dustproof and waterproof gauze composite membrane in example 1.
Fig. 2 is a schematic structural view of the dust-proof and water-proof gauze composite layer described in example 1.
Fig. 3 is a schematic structural view of the dust-proof and water-proof gauze composite layer described in example 2.
Fig. 4 is a schematic structural view of the dust-proof and water-proof gauze composite layer described in example 3.
Fig. 5 is a schematic structural view of the dust-proof and water-proof gauze composite layer described in example 3.
Reference numerals: 1. a first protective film layer; 2. a dustproof and waterproof gauze composite layer; 21. a first double-sided adhesive layer; 22. a first gauze layer; 23. a second double-sided adhesive layer; 24. a second screen layer; 25. a third double-sided adhesive layer; 26. a third gauze layer; 3. a screen protective film; 4. and (3) a release protective film layer.
Detailed Description
Examples
The first double-sided adhesive film, the second double-sided adhesive film, the third double-sided adhesive film, the first gauze, the second gauze, and the third gauze used in examples 1 to 4 and comparative examples 1 to 2 were identical in length.
Example 1
The first double-sided adhesive film comprises a first base paper layer and a first double-sided adhesive layer 21, and the second double-sided adhesive film comprises a second base paper layer and a second double-sided adhesive layer 23.
The dustproof and waterproof gauze composite film comprises a first protective film layer 1 and a dustproof and waterproof gauze composite layer 2 as shown in fig. 1, wherein the dustproof and waterproof gauze composite layer 2 sequentially comprises a first double-sided adhesive layer 21, a first gauze layer 22, a second double-sided adhesive layer 23 and a second gauze layer 24 which are adhered to the first protective film layer, and the first double-sided adhesive layer 21 and the second double-sided adhesive layer 23 are annular. The thickness of the first double-sided adhesive layer 21 and the second double-sided adhesive layer 23 were 10um, and the thickness of the first gauze layer 22 and the second gauze layer 24 were 0.02mm.
The preparation process of the dustproof and waterproof gauze composite film is prepared by the following method:
s1: compounding a first protective film and a first double-sided adhesive film to obtain a C composite film, compounding a second double-sided adhesive film and the C composite film, die cutting, and punching to obtain the first composite film, wherein the discharging tension of the compounding of the first double-sided adhesive film and the second double-sided adhesive film is controlled to be 0.1Kg/mm 2 The difference of stripping force between the first double-sided adhesive film and the second double-sided adhesive film is 5N/m;
s2, recycling the first release paper layer of the first double-sided adhesive film to obtain a second double-sided adhesive film layer and an A composite filmThe layer A composite film layer comprises a first protective film layer 1 and a first double-sided adhesive layer 21, a first gauze layer 22 is stuck on the surface of the first double-sided adhesive layer to obtain a layer B composite film layer, and the layer B composite film layer is compounded with a second double-sided adhesive film layer, wherein the receiving tension of base paper of the first double-sided adhesive film is controlled to be 0.2Kg/mm 2 ；
S3, recycling second base paper in the second double-sided adhesive film, adhering a second gauze layer 24 on the surface of the second double-sided adhesive layer 23, and performing die cutting, wherein the second gauze layer, the second double-sided adhesive layer 23, the first gauze layer 22 and the first double-sided adhesive layer 21 are cut, the die cutting outline is larger than the outline of the punching in the step S1, and the redundant second gauze layer, the second double-sided adhesive layer 23, the first gauze layer 22 and the first double-sided adhesive layer 21 are subjected to waste collection to obtain the dustproof and waterproof gauze composite film, and winding, wherein the die cutting angle alpha in the die cutting in the step S3 is 30 degrees, and the die cutting pressure in the die cutting in the step S3 is 100g/m2.
Example 2
The third double-sided adhesive film comprises a third base paper layer and a third double-sided adhesive layer 25.
The dustproof and waterproof gauze composite membrane comprises a first protective membrane layer 1 and a dustproof and waterproof gauze composite layer 2 as shown in fig. 1, wherein the dustproof and waterproof gauze composite layer 2 sequentially comprises a first double-sided adhesive layer 21, a first gauze layer 22, a second double-sided adhesive layer 23, a second gauze layer 24, a third double-sided adhesive layer 25 and a third gauze layer 26 which are adhered to the first protective membrane layer as shown in fig. 3. The thickness of the first double-sided adhesive layer 21 and the second double-sided adhesive layer 23 are 10um, the thickness of the first gauze layer 22 and the second gauze layer 24 are 0.02mm, the thickness of the third double-sided adhesive layer 25 is 60um, and the thickness of the third gauze layer 26 is 0.2mm.
S1: compounding a first protective film and a first double-sided adhesive film to obtain a C composite film, compounding a second double-sided adhesive film and the C composite film to obtain a C 'composite film, compounding a third double-sided adhesive film and the C' composite film, die cutting and punching to obtain the first composite film, wherein the discharging tension of the first double-sided adhesive film, the second double-sided adhesive film and the third double-sided adhesive film is controlled to be 0.5Kg/mm 2 The stripping force difference between the first double-sided adhesive film and the second double-sided adhesive film is 1The stripping force difference between the second double-sided adhesive film and the third double-sided adhesive film is 15N/m;
s2, recycling a first release paper layer of the first double-sided adhesive film to obtain a double-sided adhesive composite film layer and an A composite film layer, wherein the double-sided adhesive composite film layer comprises a third double-sided adhesive film and a second double-sided adhesive layer 23, the A composite film layer comprises a first protective film layer 1 and a first double-sided adhesive layer 21, the first gauze layer 22 is adhered to the surface of the first double-sided adhesive film to obtain a B composite film layer, and the double-sided adhesive composite film layer and the B composite film layer are compounded, wherein the receiving tension of base paper of the first double-sided adhesive film is controlled to be 0.4Kg/mm 2 The method comprises the steps of carrying out a first treatment on the surface of the S3, recycling second base paper in the second double-sided adhesive film to obtain a B 'composite film and a third double-sided adhesive layer 25, wherein the B' composite film comprises a first protective film layer 1, a first double-sided adhesive layer 21, a first gauze layer 22 and a second double-sided adhesive layer 23, adhering the second gauze layer 24 to the surface of the second double-sided adhesive layer 23, and adhering the third double-sided adhesive to the surface of the second gauze layer 24, wherein the material collecting tension of the base paper of the second double-sided adhesive film is controlled to be 0.4Kg/mm 2 ；
Recovering the third base paper in the third double-sided adhesive film, adhering a third gauze layer 26 on the surface of the third double-sided adhesive layer 25, performing die cutting, cutting the third gauze layer, the third double-sided adhesive layer 25, the second gauze layer, the second double-sided adhesive layer 23, the first gauze layer 22 and the first double-sided adhesive layer 21, and performing die cutting to form a profile larger than that of punching in the step S1, collecting the redundant third gauze layer, the third double-sided adhesive layer 25, the second gauze layer, the second double-sided adhesive layer 23, the first gauze layer 22 and the first double-sided adhesive layer 21 to obtain a dustproof and waterproof gauze composite film, and rolling, wherein the die cutting angle alpha in die cutting in the step S3 is 80 degrees, and the die cutting pressure in die cutting in the step S3 is 500g/m 2 。
The hardness of the support film is higher than that of the gauze protective film, and the thickness of the support film is 0.5mm.
Example 3
The utility model provides a dustproof and waterproof gauze composite film, as shown in fig. 4, includes from protection film layer 4, dustproof and waterproof gauze composite layer 2 and gauze protection film 3 layer in proper order, and dustproof and waterproof gauze composite layer 2 includes in proper order with from the first double-sided adhesive layer 21, first gauze layer 22, second double-sided adhesive layer 23 and second gauze layer 24 of protection film 4 paste, gauze protection film 3 layer bonds and is connected with the one side that the second gauze kept away from second double-sided adhesive layer 23. The thickness of the first double-sided adhesive layer 21 and the second double-sided adhesive layer 23 were 8um, and the thickness of the first gauze layer 22 and the second gauze layer 24 were 0.1mm.
The preparation steps of this embodiment are different from those of embodiment 1 in that this embodiment further includes step S4, and the specific steps are as follows:
compounding the gauze protection film 3 with the support film to obtain a D composite film, then compounding the dustproof and waterproof gauze composite film with the D composite film, wherein the second gauze layer 24 is connected with the gauze protection film 3, then carrying out die cutting, cutting off the first protection film and the gauze protection film 3, collecting waste materials to obtain a D' composite film, and compounding the transfer film with the D composite film;
tearing off the transfer film again, and sucking the remaining first protective film layer 1 by the transfer film to obtain an E composite film;
and then compounding the release protection film layer 4 with the E composite film layer, recovering the support film and cutting the sheet to obtain a single dustproof and waterproof gauze composite film finished product.
Example 4
As shown in fig. 5, the present embodiment is different from embodiment 2 in that: the dustproof and waterproof gauze composite layer 2 sequentially comprises a first double-sided adhesive layer 21, a first gauze layer 22, a second double-sided adhesive layer 23, a second gauze layer 24, a third double-sided adhesive layer 25 and a third gauze layer, wherein the first double-sided adhesive layer 21, the first gauze layer 22, the second double-sided adhesive layer 23, the second gauze layer 24, the third double-sided adhesive layer 25 and the third gauze layer are adhered to one side of the third gauze, which is far away from the third double-sided adhesive layer 25, of the gauze protective film 3.
The preparation steps of this embodiment are different from those of embodiment 2 in that this embodiment further includes step S4, and the specific steps are as follows:
compounding the gauze protection film 3 with the support film to obtain a D composite film, then compounding the dustproof and waterproof gauze composite film with the D composite film, wherein the second gauze layer 24 is connected with the gauze protection film 3, then carrying out die cutting, cutting off the first protection film and the gauze protection film 3, collecting waste materials to obtain a D' composite film, and compounding the transfer film with the D composite film;
tearing off the transfer film again, and sucking the remaining first protective film layer 1 by the transfer film to obtain an E composite film;
and then the release protection film layer 4 is compounded with the E composite film layer, and the support film is recovered to obtain a dustproof and waterproof gauze composite film finished product, so that the dustproof and waterproof gauze composite film is convenient to cut into a single dustproof and waterproof gauze composite film.
The hardness of the support film is higher than that of the gauze protective film, and the thickness of the support film is 1mm.
Comparative example
Comparative example 1
The comparative example was compared with example 1, and was different in that the preparation process of the dustproof and waterproof gauze composite film was different, and the preparation process of the comparative example was as follows:
s1, compounding a first protective film and a first double-sided adhesive film, performing die cutting, punching and waste discharge to obtain a first composite film, recycling a first bottom paper layer of the first double-sided adhesive film, waste discharge, and adhering a first gauze layer on the surface of the first double-sided adhesive film to obtain a composite film B;
s2, compounding the second double-sided adhesive film with the B composite film, connecting a second double-sided adhesive layer in the second double-sided adhesive film layer with the first gauze layer, performing die cutting and punching to obtain the second composite film, recycling the second bottom paper layer of the second double-sided adhesive film, discharging waste, adhering the second gauze layer on the surface of the second double-sided adhesive film, performing die cutting, discharging waste, adhering the first protective film on the surface of the second gauze layer to obtain the dustproof and waterproof gauze composite film, and winding.
Comparative example 2
The comparative example was compared with example 1, and was different in that the preparation process of the dustproof and waterproof gauze composite film was different, and the preparation process of the comparative example was as follows:
s1, compounding a first protective film and a first double-sided adhesive film, performing die cutting and punching to obtain a first composite film, recycling a first bottom paper layer of the first double-sided adhesive film, and adhering a first gauze layer to the surface of the first double-sided adhesive film to obtain a composite film B;
s2, compounding a second double-sided adhesive film with the B composite film, connecting a second double-sided adhesive layer in the second double-sided adhesive film layer with the first gauze layer, performing die cutting, punching and waste discharge to obtain a second composite film, recycling a second bottom paper layer of the second double-sided adhesive film, adhering the second gauze layer on the surface of the second double-sided adhesive film, performing die cutting, waste discharge, adhering the second gauze layer on the surface of the second double-sided adhesive film, performing die cutting, and waste discharge to obtain the B' composite film;
s3, compounding the third double-sided adhesive film with the B' composite film, connecting a third double-sided adhesive layer in the third double-sided adhesive film layer with the second gauze layer, recovering a third bottom paper layer of the third double-sided adhesive film, performing die cutting, discharging waste, attaching a first protective film to the surface of the second gauze layer to obtain a dustproof and waterproof gauze composite film, and winding.
Performance test
The dustproof and waterproof gauze composite films prepared in examples 1-4 and comparative example 1 were subjected to a layered adhesion test, and the time for finishing the same length of coiled material and the number of defective products were counted
The number of defective products comprises that holes of the first adhesive layer, the second adhesive layer and the third adhesive layer are not aligned, have burrs and the like.
Detection method/test method
And (3) layering adhesion test: tearing off the protective film of the dustproof and waterproof gauze composite films prepared in the examples 1-4 and the comparative example 1, adhering the protective film on the same smooth glass plane, firmly adhering the protective film on the second gauze layer or the third gauze layer by using a 3M adhesive tape, tearing off the adhesive tape rapidly at 90 degrees vertically, and observing whether the second gauze layer or the third gauze layer is layered; if layering, continuing to firmly adhere the second double-sided adhesive layer or the third double-sided layer by using the 3M adhesive tape, and tearing the adhesive tape vertically by 90 degrees; observing whether the second double-sided adhesive layer or the third double-sided layer is layered; if layering is continued, continuing the next layer according to the method, and counting layering.
Counting the time for finishing coiled materials with the same length: the time in min from the start of the formation of a roll of the dust-and-water-repellent gauze composite film to the end is calculated.
Defective product number: selecting single dustproof and waterproof gauze composite films at the position 1m away from the starting end, wherein the number of the single dustproof and waterproof gauze composite films is 100, observing whether holes of the first adhesive layer, the second adhesive layer and the third adhesive layer are not aligned or have burrs and the like, and counting the number.
The test data are shown in table 1:
TABLE 1 Performance test data
From examples 1-4 and comparative examples 1-2, in combination with Table 1, it was found that the dustproof and waterproof gauze composite film produced by the application process was short in line time, good in adhesion and less in number of defective products,
compared with the comparative example 1, the layering phenomenon does not appear in the layering bonding performance test in the example 1, layering phenomenon all appears in the first gauze layer, the first double-sided adhesive layer, the second double-sided adhesive layer and the second gauze layer in the comparative example 1, and the quantity of defective products in the comparative example 1 is 4, and it is explained that through the preparation technology of the application, the production line time can be shortened, the chance of contact between the double-sided adhesive and the air is reduced, the bonding stability of the first gauze layer, the first double-sided adhesive layer, the second double-sided adhesive layer and the second gauze is improved, and meanwhile the production of defective products can be reduced.
Similarly, in the case of example 2 and comparative example 2, the layering phenomenon does not occur in the layering adhesive property test in example 1, the layering phenomenon occurs in the first gauze layer, the first double-sided adhesive layer, the second gauze layer, the third gauze layer and the third double-sided adhesive layer in comparative example 2, and the number of defective products in comparative example 1 is 6, which indicates that the production line time can be shortened, the contact of the double-sided adhesive with air is less, the adhesive stability of the first gauze layer, the first double-sided adhesive layer, the second gauze layer, the third gauze layer and the third double-sided adhesive layer is improved, and the defective products can be reduced.
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 (5)
1. The processing technology of the dustproof and waterproof gauze composite film is characterized by comprising the following preparation steps:
s1: sequentially compounding the first protective film, the first double-sided adhesive film, the second double-sided adhesive film and the third double-sided adhesive film, die cutting and punching to obtain a first compound film;
s2, recycling base paper of the first double-sided adhesive film to obtain a double-sided adhesive composite film and a composite film layer, wherein the double-sided adhesive composite film layer comprises a third double-sided adhesive film and a second double-sided adhesive film, the composite film layer A comprises a first protective film layer and a first double-sided adhesive film, the first gauze layer is adhered to the surface of the first double-sided adhesive film to obtain a composite film layer B, and the double-sided adhesive composite film layer and the composite film layer B are compounded;
s3, recovering the base paper in the second double-sided adhesive film to obtain a B 'composite film and a third double-sided adhesive layer, wherein the B' composite film comprises a first protective film layer, a first double-sided adhesive layer, a first gauze layer and a second double-sided adhesive layer, adhering the second gauze layer to the surface of the second double-sided adhesive layer, and adhering the third double-sided adhesive layer to the surface of the second gauze layer;
recovering the base paper in the third double-sided adhesive film, adhering a third gauze layer on the surface of the third double-sided adhesive layer, die cutting, collecting waste materials to obtain a dustproof and waterproof gauze composite film, and rolling;
s4, compounding the gauze protection film with the support film to obtain a D composite film, compounding the dustproof and waterproof gauze composite film with the D composite film, wherein the third gauze layer is connected with the gauze protection film, die-cutting, collecting waste materials to obtain a D 'composite film, and compounding the transfer film with the D' composite film;
tearing off the transfer film again, and sucking away the first protective film layer by the transfer film to obtain an E composite film;
compounding the release protective film layer with the E composite film layer, recovering the support film and cutting the film to obtain a single dustproof and waterproof gauze composite film;
the discharging tension of the composite of the first double-sided adhesive film and the second double-sided adhesive film is controlled to be 0.1-0.5Kg/mm 2 The thicknesses of the first double-sided adhesive layer and the second double-sided adhesive layer are 10-60 mu m, and the receiving tension of the base paper of the first double-sided adhesive layer is 0.2-0.4Kg/mm 2 ；
The stripping force difference between the first double-sided adhesive film and the second double-sided adhesive film is 5-15N/m;
the die cutting angle alpha of the die cutting in the step S3 is 30-80 degrees or 100-150 degrees; the die cutting pressure in the die cutting in the step S3 is 100-500g/m 2 。
2. The process for processing the dustproof and waterproof gauze composite membrane according to claim 1, which is characterized in that: the hardness of the supporting film is higher than that of the gauze protective film, and the thickness of the supporting film is not lower than 0.5mm.
3. A process for producing a dust-proof and water-proof gauze composite film according to claim 1 or 2, which is characterized in that: the dustproof and waterproof gauze composite film comprises a protective film layer and a dustproof and waterproof gauze composite layer, wherein the dustproof and waterproof gauze composite layer comprises three groups of gauze layers, each gauze layer sequentially comprises a double-sided adhesive layer and a gauze layer, one group of double-sided adhesive layers is adhered to the protective film layer, and the other double-sided adhesive layers are connected with the adjacent gauze layers.
4. A process for producing a dust-proof and water-proof gauze composite film according to claim 3, wherein: the protective film layer is connected with the double-sided adhesive layer of the innermost layer of the dustproof and waterproof gauze composite layer, and the gauze protective film layer is connected with the gauze layer of the outermost layer of the dustproof and waterproof gauze composite layer.
5. The dustproof and waterproof gauze composite membrane processing technology according to claim 4, characterized in that: the thickness of the gauze layers is 0.02-0.2mm.
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| CN101966771A (en) * | 2010-08-30 | 2011-02-09 | 厦门鑫嘉捷电子科技有限公司 | Waterproof, dustproof and shockproof telephone receiver net and manufacturing process thereof |
| CN205364731U (en) * | 2015-12-11 | 2016-07-06 | 苏州市官田电子有限公司 | Earphone dust screen with waterproof function |
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| CN210274445U (en) * | 2019-08-16 | 2020-04-07 | 烯友金电子科技(苏州)有限公司 | Imitative waterproof dustproof earphone net of nylon convex closure |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966771A (en) * | 2010-08-30 | 2011-02-09 | 厦门鑫嘉捷电子科技有限公司 | Waterproof, dustproof and shockproof telephone receiver net and manufacturing process thereof |
| CN205364731U (en) * | 2015-12-11 | 2016-07-06 | 苏州市官田电子有限公司 | Earphone dust screen with waterproof function |
| CN208346083U (en) * | 2018-04-24 | 2019-01-08 | 郑州中原思蓝德高科股份有限公司 | A kind of sealed Cellophane |
| CN210274445U (en) * | 2019-08-16 | 2020-04-07 | 烯友金电子科技(苏州)有限公司 | Imitative waterproof dustproof earphone net of nylon convex closure |
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