CN213570268U - Waterproof membrane composite assembly - Google Patents

Abstract

The utility model discloses a composite assembly of waterproof membrane, include: a carrier film and a waterproofing membrane assembly; the waterproofing membrane assembly comprises at least a waterproofing membrane and a first adhesive layer; a waterproof membrane having air-permeable and/or sound-permeable properties; the first bonding layer is of an annular structure, one side surface of the first bonding layer is connected with the waterproof film, and the other side surface of the first bonding layer is connected with the carrier film; a side face, facing the waterproof membrane, of the carrier membrane is provided with an adhesive layer, an isolation area is formed in the position, corresponding to the waterproof membrane, of the carrier membrane, and when the waterproof membrane deforms towards the side where the carrier membrane is located, the isolation area cannot be adhered to the waterproof membrane. The utility model discloses an isolation area is guaranteeing that waterproof membrane subassembly and carrier film are glutinous under the firm prerequisite even, effectively prevents that waterproof membrane and viscous layer are glutinous even in the transportation, when isolation area is greater than the boss of carrier film thickness for thickness, can also play good supporting role to the waterproof membrane, avoids the waterproof membrane to take place great deformation or long-time undercut and produces creep or even fold, guarantees the ventilative and/or the sound permeability of waterproof membrane.

Description

Waterproof membrane composite assembly

Technical Field

The utility model belongs to the technical field of the water proof membrane, especially, relate to a water proof membrane composite assembly.

Background

The waterproof film is a top film with oil and water resistance, is thin and does not change the optical performance of the antireflection film. The waterproof membrane has the function of breathing freely and/or sound transmission simultaneously, and it is in the transportation, because receive factor influences such as gravity, vibrations, the waterproof membrane just can sunken. In order to realize the stable connection between the carrier film and the waterproof film assembly, an adhesive layer is usually arranged on one side of the carrier film facing the waterproof film assembly, and the adhesive layer can firmly adhere the first adhesive layer of the waterproof film assembly, so that the waterproof film assembly and the carrier film are prevented from shifting or separating in the transportation process. The waterproof membrane is also attached to the viscous layer after sinking downwards, so that the following results are achieved, namely 1) the deformation of the waterproof membrane is too large, so that the waterproof membrane is irreversibly deformed and cannot be restored to the original state, and the ventilation and/or sound transmission effect cannot be achieved; 2) when the waterproof membrane assembly needs to be transferred when the destination is reached, the waterproof membrane is bonded with the adhesive layer, and a large external force needs to be applied for transferring, so that the transferring process is troublesome, the waterproof membrane can be damaged, and the reject ratio of the waterproof membrane is greatly improved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency of the prior art, the utility model provides a skew can not take place or break away from with the carrier film for waterproof membrane subassembly in the transportation, and the waterproof membrane can not bond on the carrier film, and finally ventilative and/or sound transmission can not receive the waterproof membrane composite component of great influence.

The utility model provides a technical scheme that its technical problem adopted is:

a waterproofing membrane composite assembly comprising:

a carrier film and a waterproofing membrane assembly;

the waterproofing membrane assembly comprises at least a waterproofing membrane and a first adhesive layer;

a waterproof membrane having air-permeable and/or sound-permeable properties;

the first bonding layer is of an annular structure, one side surface of the first bonding layer is connected with the waterproof film, and the other side surface of the first bonding layer is connected with the carrier film;

one side of the carrier film facing the waterproof film is provided with an adhesive layer, an isolation area is formed on the carrier film corresponding to the waterproof film, and when the waterproof film deforms to one side of the carrier film, the isolation area cannot be adhered to the waterproof film.

In the utility model, the carrier film plays a loading role, the first bonding layer has certain viscosity, in order to ensure that the first bonding layer and the carrier film can be stably connected, the upper surface of the carrier film is coated with an adhesive layer, and in the transfer process, under the action of the self gravity of the waterproof film, and the waterproof membrane can be sunken downwards due to vibration in the transportation process, so that the waterproof membrane is adhered to the adhesive layer, and the waterproof membrane is easy to wrinkle or even crack when a subsequent manipulator grabs the waterproof membrane assembly, not only can affect the air permeability and/or the sound permeability of the waterproof membrane, but also can cause the defective rate to be greatly increased, the waterproof membrane is deformed due to the arrangement of the isolation area, especially when the deformation of undercut, can not take place the adhesion with the contact of viscidity layer, take place to break when stopping the waterproof membrane and shift, guarantee that the performance of waterproof membrane can not take place great change in the transit.

Further, the center of the isolation region is offset from the center of the first adhesive layer by a distance d that is no greater than one quarter of the value of the inner diameter of the first adhesive layer.

The center of the isolation area deviates from the center of the first bonding layer by an overlarge distance, so that the partial performance of the waterproof film corresponding to the isolation area is kept good, but the partial performance of the waterproof film not corresponding to the isolation area is damaged greatly and even breaks, and the purpose that the overall performance of the waterproof film is kept good is achieved.

Further, the area of the isolation region is 30-90% of the area of the inner ring of the first bonding layer.

If the area of the separation region is excessively small, the performance of the waterproof membrane corresponding to the area between the outer ring of the separation region and the inner ring of the first adhesive layer cannot be ensured even if the center of the separation region is deviated from the center of the first adhesive layer by a distance that is ensured within a small range, and therefore the area of the separation region is maintained at 30 to 90% of the area of the inner ring of the first adhesive layer, so that the waterproof membrane isolates the adhesive layer as much as possible, and the air-permeable and/or sound-permeable performance thereof is ensured.

Further, the thickness of the isolation area is larger than that of the carrier film.

When the thickness of isolation region is greater than the thickness of carrier film, the isolation region not only guarantees that the waterproof film can not be sticked by the adhesive linkage, plays the guard action to the waterproof film, has shortened the perpendicular interval between carrier film and the waterproof film moreover for when the deformation of undercut takes place for the waterproof film, the isolation region still plays the effect of a support to the waterproof film.

Further, the distance between the waterproof film and the adhesive layer is 30-100 um; the isolation area is provided with a boss, one side of the boss is connected with the carrier film, the height of the boss is 40-90% of the distance between the waterproof film and the adhesive layer, and when the waterproof film deforms towards the side where the carrier film is located, the boss supports the waterproof film.

The waterproof membrane can be sunken downwards under the action of the self gravity of the waterproof membrane, particularly, the waterproof membrane can be deformed greatly after being vibrated for a long time and/or to a large extent in the transferring process, or the waterproof membrane is in a deformed state for a long time, and the boss with a certain thickness is arranged on the viscous layer of the carrier membrane and is used for supporting the waterproof membrane, so that the sunken amplitude of the waterproof membrane is small, namely the deformation quantity of the waterproof membrane is small, and the ventilation and/or sound transmission performance of the waterproof membrane is not influenced; the height of the boss is 40-90% of the distance between the waterproof membrane and the adhesive layer, in the installation process, the boss is firstly installed on the adhesive layer of the carrier membrane, the waterproof membrane assembly is installed after the boss is installed, when the waterproof membrane assembly is installed, a force acts on the waterproof membrane assembly, so that the first bonding layer is adhered to the adhesive layer of the carrier membrane, the first bonding layer deforms under the action of the force, the thickness of the first bonding layer is reduced, the height of the boss is not too high, and a certain gap needs to be reserved to provide a space for the thickness change of the first bonding layer; also because the thickness of the first adhesive layer varies, it is necessary to ensure that the distance between the waterproofing membrane and the adhesive layer is 30-100um, which provides sufficient space for the deformation of the first adhesive layer, and if the thickness of the first adhesive layer is less than 30um, the adhesive strength between the first adhesive layer and the adhesive layer is relatively low, which cannot ensure a stable connection between the first adhesive layer and the carrier membrane, but also adversely affects the deformation of the waterproofing membrane; if the thickness of the boss is too small, the boss has limited supporting effect on the waterproof membrane, the downward sunken amplitude of the waterproof membrane is still too large, the deformation amount is still large, and the air permeability and/or sound transmission performance of the waterproof membrane can be still changed; the setting of boss also makes in the region between waterproof membrane, viscous layer and the first bond line three, and the air volume diminishes, and because there is certain quantity of dust in the air, the reduction of air volume for the waterproof membrane is difficult to be infected with the dust more, has reduced the influence of dust to the waterproof membrane.

Further, the boss is coated with an isolating layer at least on one side close to the waterproof film; the isolation layer is a silicon oil layer, and the stripping force of the isolation layer is 1-10gf/25 mm.

When in production, the plurality of bosses are adhered to the release film, one surface coated with the isolation layer is adhered to the release film, and the side surfaces of the bosses are coated with the isolation layer, so that the adhesion strength when the bosses and the release film are adhered together can be reduced due to the isolation layer, the bosses are easily separated from the release film, and when the bosses are transferred to the carrier film, one side surface which is not coated with the isolation layer is adhered to the carrier film, and the connection is relatively firm; meanwhile, when the waterproof membrane assembly is prepared, a certain glue overflow phenomenon easily occurs, namely, a certain amount of unformed first adhesive is arranged beside the first adhesive layer of the annular structure, and the arrangement of the isolation layer can ensure that the boss and the unformed first adhesive are not easily adhered together particularly when the isolation layer extends to the side wall of the boss, or even if the boss and the first adhesive are adhered together, the boss and the first adhesive are also easily separated when a subsequent manipulator grabs the waterproof membrane assembly; one side of the boss is coated with the isolation layer, the other opposite side of the boss is not coated with the isolation layer, and one side surface which is not coated with the isolation layer is connected with the viscous layer of the carrier film, so that a certain bonding strength can be ensured between the boss and the carrier film, and the boss and the carrier film cannot generate relative displacement in the transportation process; the coating amount of this isolation layer can not only guarantee antiseized effect, and manufacturing cost reduces relatively moreover, and is also less to the high influence of boss.

The stripping force value of the isolating layer is set, so that the anti-sticking effect can be ensured, the production cost is relatively reduced, and the influence on the height of the boss is small; the more silicone oil is coated, the smaller the stripping force required by the silicone oil layer is; the less silicone oil is coated, the larger the stripping force required by the silicone oil layer is, and the testing method of the stripping force is a testing method of 180-degree stripping force and residual adhesion rate of the optical functional film release film GB/T25256-2010; if the silicone oil coating amount of the separation layer is too small, i.e., the peeling force is greater than 10gf/25mm, the separation effect cannot be achieved, and the waterproof film may be adhered to the boss; if the coating amount of the release layer is too large, i.e., the peeling force is less than 1gf/25mm, the bonding stability cannot be secured when the boss is bonded to the release film. And with boss commentaries on classics subsides extremely the utility model discloses a during on the carrier film, the coating volume of isolation layer is more then change subsides light more, and the coating volume of isolation layer is less more, then with the boss from peeling off from the type membrane when hard more.

Further, the inner diameter of the first bonding layer is 1-5 mm; the radial width of the boss is 30-80% of the inner diameter of the first adhesive layer; the unilateral distance between the boss and the first bonding layer is 0.05-0.8 mm.

The inner diameter of the first bonding layer is too small, so that the mounting is not facilitated, and the actual industrialized requirement is not met; if the inner diameter is too large, that is, the inner diameter of the waterproof membrane is increased, the waterproof membrane is easy to dent, and the larger the deformation amount is, the more easily the ventilation and/or sound transmission performance of the waterproof membrane is affected; the radial width of the boss is adapted to the inner diameter of the first bonding layer to change, and the upper limit of the radial width of the boss exists because a certain glue overflow phenomenon easily occurs when the waterproof membrane assembly is prepared, namely, a certain amount of unformed first bonding agent is arranged beside the first bonding layer of the annular structure, and the boss has an overlarge inner diameter, so that the boss is easily adhered to the unformed first bonding agent, and the waterproof membrane assembly is not easy to be taken down from the carrier membrane at a later stage; when the boss is adhered to the first adhesive which is not shaped, the waterproof membrane assembly is taken down from the carrier membrane, two results can be generated, the first result is that the waterproof membrane assembly is separated from the carrier membrane together with the boss, but the sound transmission and/or air permeability of the waterproof membrane assembly can be greatly influenced due to the existence of the boss in the later period; secondly, the waterproofing membrane assembly is difficult to separate from the carrier membrane, and the waterproofing membrane assembly is damaged by using a large force, such as tearing the waterproofing membrane assembly apart; the boss is too small, and the boss is subsequently attached by the manipulator, so that the phenomenon of oblique attachment is easily caused, namely one side of the boss is closer to the first adhesive layer, and the other side of the boss is farther from the first adhesive layer, so that the boss still cannot well play a supporting role at the moment; the deformation of the waterproof membrane is still too large, and the air permeability and/or sound transmission performance of the waterproof membrane are affected; the center of the boss is ensured not to deviate from the center of the waterproof membrane to be far, and the boss is ensured to play a good supporting role on the waterproof membrane; meanwhile, when the waterproof membrane assembly is manufactured, a certain glue overflow phenomenon easily occurs, namely a certain amount of unformed first adhesive is arranged beside the first adhesive layer of the annular structure, particularly the inner ring of the first adhesive layer, when the unilateral distance between the boss and the first adhesive layer is too small, the boss is easily adhered to the unformed first adhesive, if the unilateral distance between the boss and the first adhesive layer is too large, the center of the boss deviates from the center of the waterproof membrane to be too large, and because the diameter of the inner ring of the first adhesive layer is determined, the unilateral distance between one side is too large, the unilateral distance between the other side is inevitably too small.

Further, the boss is solid or hollow cylindrical; or the boss is in a solid or hollow frustum shape and has a structure with a big top and a small bottom or a big top and a small bottom; or the boss is formed by combining a plurality of block-shaped bodies which are arranged at intervals in a ring shape.

The bosses are cylindrical and relatively stable, the bosses are frustum-shaped, the use forms are various, the same boss can be suitable for supporting waterproof membranes with different inner diameters, and only the surfaces with different sizes need to be selected; the boss is formed by combining a plurality of block-shaped bodies, so that different numbers of block-shaped bodies can be selected according to the size of the waterproof membrane, or the size of the interval between the block-shaped bodies can be changed according to the requirement, so as to achieve the purpose of supporting the waterproof membrane.

Furthermore, the isolation area is provided with an isolation film, and one side surface of the isolation film is connected with the carrier film.

The use cost of the isolating membrane is relatively low, and the isolating membrane is adhered to the adhesive layer, is simple to operate and is not easy to separate.

Further, the inner diameter of the first adhesive layer is 1-5mm, and the radial width of the release film is 30-80% of the inner diameter of the first adhesive layer.

The inner diameter of the first bonding layer is too small, so that the mounting is not facilitated, and the actual industrialized requirement is not met; if the inner diameter is too large, that is, the inner diameter of the waterproof membrane is increased, the waterproof membrane is easy to dent, and the larger the deformation amount is, the more easily the ventilation and/or sound transmission performance of the waterproof membrane is affected; the radial width of the isolating membrane adapts to the change of the inner diameter of the first bonding layer, and the upper limit of the radial width of the isolating membrane exists because a certain glue overflow phenomenon easily occurs when the waterproof membrane assembly is prepared, namely a certain amount of unformed first adhesive is arranged beside the first bonding layer of the annular structure, the inner diameter of the isolating membrane is too large, the isolating membrane is easily adhered to the unformed first adhesive, and the waterproof membrane assembly is not easy to be taken down from the carrier membrane in the later period.

Further, the thickness of the isolation area is smaller than that of the carrier film.

The form of the isolation area is various, the isolation area can be selected at will according to actual conditions, and the application scene is wide.

Furthermore, the isolation area is a sunken hole formed in the center of the area of the carrier film, which is opposite to the waterproof film; the concave hole penetrates through the carrier film; the maximum radial width of the indentation hole is 30-80% of the inner diameter of the first bonding layer.

The isolation region is a sunken hole, so that when the waterproof membrane is deformed in a downward sunken mode, the sunken hole can be attached, the waterproof membrane is prevented from being folded, and the ventilation and/or sound transmission performance of the waterproof membrane is kept in the range before transportation as much as possible.

Further, the adhesive layer on the carrier film is coated at intervals, and the isolation area is an area which is not coated with the adhesive layer; the center of the area which is not coated with the adhesive layer is opposite to the center of the waterproof membrane.

The adhesive layer is coated at intervals, so that the waterproof film is not adhered to the adhesive layer, the manufacturing cost is reduced, and the processing is convenient.

The utility model has the advantages that: the isolation area can effectively prevent the adhesion between the waterproof membrane and the adhesive layer in the transfer process on the premise that the waterproof membrane assembly and the carrier membrane are firmly adhered, so that the ventilation and/or sound transmission performance of the waterproof membrane is kept relatively unchanged, and meanwhile, when the isolation area is a boss with the thickness larger than that of the carrier membrane, the isolation area can also play a good supporting role on the waterproof membrane, so that the waterproof membrane is prevented from being greatly deformed or sinking downwards for a long time to generate creep deformation or even wrinkles, and the ventilation and/or sound transmission performance of the waterproof membrane is ensured; at least coating an isolating layer on the surface of one side of the boss close to the waterproof membrane, wherein the isolating layer can prevent the boss and the waterproof membrane from being bonded, and the boss and the waterproof membrane can be easily separated when the waterproof membrane component is transferred; the assembly structure is simple, the boss and the first bonding layer cannot be adhered in the installation process, and the subsequent transfer of the waterproof membrane assembly is facilitated.

Drawings

FIG. 1 is a sectional view showing the structure of a carrier membrane and a waterproofing membrane module according to the prior art.

Fig. 2 is a structural sectional view showing deformation of a waterproof membrane in the related art.

Fig. 3 is a cross-sectional view of a waterproof membrane composite assembly according to an embodiment of the present invention.

Fig. 4 is a perspective view of a boss according to a first embodiment of the present invention.

Fig. 5 is a perspective view of a second structure of a boss according to an embodiment of the present invention.

Fig. 6 is a perspective view of a third structure of a boss according to an embodiment of the present invention.

Fig. 7 is a perspective view of a fourth structure of a boss according to a first embodiment of the present invention.

Fig. 8 is a cross-sectional view of a waterproof membrane composite assembly provided by the second embodiment of the present invention

Fig. 9 is a cross-sectional view of a waterproof film composite provided in the third embodiment of the present invention.

Fig. 10 is a cross-sectional view of a waterproof membrane composite according to a fourth embodiment of the present invention.

Fig. 11 is a cross-sectional view of a composite waterproof membrane (membrane carrier is penetrated in the isolation region) according to a fifth embodiment of the present invention.

Fig. 12 is a cross-sectional view of a composite waterproof membrane (the isolation region does not penetrate the carrier membrane) according to a fifth embodiment of the present invention.

Fig. 13 is a cross-sectional view of a composite waterproof membrane (membrane carrier is penetrated in the isolation region) according to a sixth embodiment of the present invention.

The adhesive comprises a carrier film 1, an adhesive layer 11, a waterproof film component 2, a waterproof film 21, a first adhesive layer 22, a first adhesive layer 221, one side surface of the first adhesive layer 222, the other side surface of the first adhesive layer 223, an amorphous first adhesive, a cavity 3, a boss 4, one side surface of a boss 41, a block 42, an isolation layer 5, an adhesive layer 6, an isolation area 7, an isolation film 71 and a sunken hole 72.

Detailed Description

In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Example one

A waterproofing membrane composite assembly comprising a carrier membrane 1 and a waterproofing membrane assembly 2, said waterproofing membrane assembly 2 comprising at least a waterproofing membrane 21 and a first adhesive layer 22, the waterproofing membrane 21 having air and/or sound permeability, the first adhesive layer 22 having a ring-like structure with one side surface 221, i.e. the upper surface of the first adhesive layer 22 in fig. 3, being connected to the waterproofing membrane 21 and the other side surface 222, i.e. the lower surface of the first adhesive layer 22 in fig. 3, being connected to the carrier membrane 1.

In order to ensure the stability of the connection between the lower surface of the first adhesive layer 22 and the carrier film 1, the side of the carrier film 1 facing the waterproofing membrane 21 is provided with an adhesive layer 6, and the adhesive layer 6 can firmly adhere the lower surface of the first adhesive layer 22 of the waterproofing membrane module 2.

As shown in fig. 1, ideally, the waterproof membrane 21 is in a horizontal state, which is not deformed, but during transportation, the waterproof membrane 21 is easily deformed due to the gravity of the waterproof membrane 21 and long-term vibration or large-amplitude vibration during transportation, and particularly, the downward concave shape shown in fig. 2 affects the air permeability and sound permeability of the waterproof membrane 21, and more importantly, the waterproof membrane 21 is directly adhered to the adhesive layer 6 when the deformation amplitude is too large.

In order to prevent the waterproofing membrane 21 from sticking to the adhesive layer 6 during transportation, a separation region 7 is formed on the carrier film 1 at a position corresponding to the waterproofing membrane 21, the surface of the separation region 7 facing the waterproofing membrane 21 is not sticky, and when the waterproofing membrane 21 is deformed to the side of the carrier film 1, the separation region 7 does not allow the adhesive layer 6 to stick to the waterproofing membrane 21.

In order to ensure that the isolation region 7 still has effective isolation function when the waterproof membrane 21 is largely recessed, the center of the isolation region 7 is offset from the center of the first adhesive layer 22 by a distance d, and the inner diameter of the first adhesive layer 22 is defined as d1, so that the distance d is not more than one fourth of the value of the inner diameter of the first adhesive layer, namely d is less than or equal to 1/4d 1.

Or the center of the isolation region 7 and the center of the first adhesive layer 22 are not limited, but the area of the isolation region 7 is 30-90% of the area of the inner circle of the first adhesive layer 22.

Of course, the above two conditions can be satisfied simultaneously, i.e., d ≦ 1/4d1, and the area of the isolation region 7 is 30-90% of the area of the inner ring of the first adhesive layer 22, and in this embodiment, the area of the isolation region 7 is preferably 50% of the area of the inner ring of the first adhesive layer 22.

In the present embodiment, the thickness of the isolation region 7 is greater than the thickness of the carrier film 1.

Specifically, the distance between the waterproof film 21 and the adhesive layer 6 is 30 to 100um, that is, h1 in fig. 3 is 30 to 100 um; the first adhesive layer 22, the waterproofing membrane 21 and the adhesive layer 6 enclose a cylindrical cavity 3, a boss 4 is arranged in the cavity 3, one side 41 of the boss 4, i.e. the lower surface of the boss 4 in fig. 3, is connected with the adhesive layer 6 on the carrier film 1, and a gap is also arranged between the upper surface of the boss 4 and the waterproofing membrane 21, in the embodiment, the height of the boss 4 is 40-90% of the distance between the waterproofing membrane 21 and the adhesive layer 6, preferably, the height of the boss 4 is 50-80% of the distance between the waterproofing membrane 21 and the adhesive layer 6, i.e. in fig. 3, h2 is 40-90% h1, preferably, h2 is 50-80% h1, i.e. h2 is 12-90um, preferably 15-80 um. Thus, during transportation, when the waterproof membrane 21 deforms towards the side of the carrier membrane 1, i.e. the lower side in fig. 3, the waterproof membrane 21 can contact the upper surface of the boss 4, and the boss 4 can support the waterproof membrane 21 well.

In the above-described configuration, the bosses 4 not only isolate the adhesive layer 11 from the waterproofing membrane 21, but also the bosses 4 shorten the longitudinal distance between the waterproofing membrane 21 and the carrier film 1, so that the downward depression of the waterproofing membrane 21 is small. In order to make the bosses 4 support the waterproofing membrane 21 in a large area in the transverse direction, and achieve a good supporting effect, the radial width of the bosses 4 is 30-80% of the inner diameter of the first adhesive layer 22, i.e., in fig. 3, d2 is 30-80% d 1. The inner diameter of the first adhesive layer 22 is 1-5mm, i.e. d1 is 1-5mm, so that d2 is 0.3-4 mm.

In this embodiment, the distance between the waterproofing membrane 21 and the adhesive layer 6 is 40um, i.e. h1 is 40um in fig. 3, the height of the boss 4 is 50% of the distance between the waterproofing membrane 21 and the adhesive layer 6, i.e. h2 is 20um, preferably the inner diameter of the first adhesive layer 22 is 5mm, i.e. d1 is 5mm, d2 is 70% d1, i.e. d2 is 3.5mm, and the cross-sectional area of the boss 4 is 49% of the area of the inner circle of the first adhesive layer 22. 10 sets of experiments were selected with different ratios of the distance d of the center of the isolation region 7 from the center of the first adhesive layer 22, and the results are shown in table 1.

TABLE 1

The method for testing the sound blocking quantity comprises the steps of punching and cutting a material to be tested into a wafer with the diameter of 5.0mm, concentrically stacking the punched material to be tested and an annular double-sided adhesive tape with the outer diameter of 5.0mm and the inner diameter of 1.7mm, wherein the thickness of the double-sided adhesive tape is 0.15mm, finally attaching the double-sided adhesive tape to a microphone test board with a sound outlet hole with the diameter of 1mm and the depth of 0.8mm, selecting a Lou SPA1687LR5H as a simulation microphone, arranging an artificial mouth at a position 2cm away from a microphone tool, and connecting the simulation microphone and the artificial mouth into an Audio analyzer with the Audio Precision x525 model. The self-contained Audio test software of the Audio precision is utilized to enable the artificial mouth to emit sound with the frequency of 100Hz-10000Hz and the sound pressure level of 94dBSPL, response signals of the microphone end under the condition that a test component is attached to the surface of the microphone tool and the test component is not attached to the surface of the microphone tool are collected and differed, and finally the sound blocking amount of the corresponding diaphragm under a certain Hz is obtained; the sound blocking amount is in dB. The utility model discloses in reflect the sound transmission performance of water proof membrane 21 through the sound separation volume; the smaller the sound blocking amount, the better the sound transmission performance of the waterproof film 21.

As shown in table 1, the distance between the waterproofing membrane 21 and the adhesive layer 6 is 40um, the height of the boss 4 is 50% of the distance between the waterproofing membrane 21 and the adhesive layer 6, the inner diameter of the first adhesive layer 22 is 5mm, that is, d1 is 5mm, d2 is 70% d1, i.e., d2 is 3.5mm, and the area of the isolation region 7 is 49% of the area of the inner periphery of the first adhesive layer 22, the waterproof film 21 is not adhered to the adhesive layer 6, in the transferring process, the waterproof membrane 21 has small elastic deformation amount, and the phenomena of folds and the like can not occur, in particular the centre of the boss 4, is offset from the centre of the first adhesive layer 22 by a distance d, which is not more than a quarter of the value of the inner diameter of said first adhesive layer 22, namely, when d is not more than 1/4d1, the deformation amount of the waterproof membrane 21 is relatively small, the sound transmission performance of the waterproof membranes 21 of the same batch is within a certain range, and the difference between the maximum value and the minimum value of the sound transmission performance of the waterproof membranes 21 of the same batch is less than 0.1 dB; when d is greater than 1/4d1, the area of the waterproofing membrane 21 not corresponding to the boss 4 is likely to be broken when the waterproofing membrane module 2 is transferred because of the high risk of sticking to the adhesive layer 6 when the large-amplitude vibration is generated in the area.

In order to avoid the connection between the boss 4 and the first adhesive layer 22 or the first adhesive 223 of the irregular shape and to form a support at the middle portion of the waterproofing membrane 21 as much as possible, the unilateral distance between the boss 4 and the first adhesive layer 22 is 0.05-0.8mm, i.e., S1 in fig. 3 is 0.05-0.8mm, and in the present embodiment, S1 is preferably 0.5 mm.

As shown in FIG. 4, the boss 4 may be a solid cylindrical structure, as shown in FIG. 5, or the boss 4 may be a hollow cylindrical structure, and the inner diameter of the hollow portion is 1/3-4/5 of the outer ring diameter of the boss 4.

As shown in fig. 6, the boss 4 may also be a hollow frustum structure, or may also be a solid frustum structure, and the frustum structure is a structure with a large top and a small bottom or a structure with a small top and a large bottom, that is, when in use, the surface with the smaller diameter may be placed upward, or the surface with the larger diameter may be placed upward.

As shown in fig. 7, the boss 4 may be formed by combining a plurality of block-shaped bodies 42, and the plurality of block-shaped bodies 42 are arranged at intervals in a ring shape, so as to form a supporting surface larger than the surface area of the single block-shaped body 42. In the present embodiment, three cube-shaped bodies 42 are located at three vertices of an equilateral triangle, and the upper surfaces of the three cube-shaped bodies form a supporting surface having a larger surface area than one side of the single cube-shaped body 42, and the center of the supporting surface is suspended.

Example two

In this embodiment, the distance between the waterproofing membrane 21 and the adhesive layer 6 is selected to be 75um, i.e., h1 is 75um in fig. 3, the height of the boss 4 is 60% of the distance between the waterproofing membrane 21 and the adhesive layer 6, the inner diameter of the first adhesive layer 22 is 4mm, i.e., d1 is 4mm, and the distance d between the center of the isolation region 7 and the center of the first adhesive layer 22 is 1/5d 1. 10 sets of experiments were selected with the area of the isolation region 7 being different ratios of the area of the inner turns of the first adhesive layer 22, i.e. different ratios of d1 and d2, and the results are shown in Table 2.

TABLE 2

As shown in table 2, on the premise that the distance between the waterproof film 21 and the adhesive layer 6 is 75 μm, the height of the boss 4 is 60% of the distance between the waterproof film 21 and the adhesive layer 6, the inner diameter of the first adhesive layer 22 is 4mm, that is, d1 is 4mm, and the distance d between the center of the isolation region 7 and the center of the first adhesive layer 22 is 1/5d1, the waterproof film 21 is not adhered to the adhesive layer 6, the amount of elastic deformation of the waterproof film 21 is small during transportation, and no phenomenon such as wrinkles occurs, and particularly, when the area of the isolation region 7 is 30 to 90% of the area of the inner ring of the first adhesive layer 22, the amount of deformation of the waterproof film 21 is relatively small, the sound transmission performance of the waterproof film 21 of the same batch is within a certain range, and the difference between the maximum value and the minimum value of the sound transmission performance of the waterproof film 21 of the same batch is less than 0.1 dB; when the area of the isolation region 7 is less than 30% of the area of the inner ring of the first adhesive layer 22, due to the overlarge area deviation, when the region of the waterproof membrane 21 without the corresponding boss 4 vibrates greatly, the waterproof membrane is adhered to the adhesive layer 6 at a high risk, and the waterproof membrane assembly 2 is easy to crack when being transferred; when the area of the isolation region 7 is greater than 90% of the area of the inner ring of the first adhesive layer 22, the deformation amount of the waterproof membrane 21 is relatively small, the sound transmission performance of the waterproof membrane 21 of the same batch is within a certain range, and the difference between the maximum value and the minimum value of the sound transmission performance of the waterproof membrane 21 of the same batch is less than 0.1dB, but the waterproof membrane module 2 is easily adhered to the amorphous first adhesive 223, which adversely affects the assembly and transfer of the waterproof membrane module 2.

In this embodiment, the one-sided distance S1 between the bump 4 and the first adhesive layer 22 varies with the ratio of d2 to d1, and other structures similar to those in the first embodiment are not repeated.

EXAMPLE III

As shown in fig. 9, the present embodiment is different from the first embodiment in that a side of the boss 4 close to the waterproofing membrane 21 is coated with a spacer 5, and the spacer 5 is used for preventing the waterproofing membrane 21 from adhering to the upper surface of the boss 4 when the waterproofing membrane 21 is deformed to the side of the carrier membrane 1.

The isolation layer 5 is a silicon oil layer, namely the isolation layer 5 is formed on the surface of the boss 4 by coating silicon oil, and the stripping force of the silicon oil layer is 5gf/25 mm; if the peeling force of the silicon oil layer is greater than 5gf/25mm, it cannot achieve the effect of insulation, and the waterproof film 21 may be adhered to the boss 4, and if the peeling force of the silicon oil layer is less than 5gf/25mm, the stability of adhesion cannot be secured when the boss 4 is adhered to the release film. In this embodiment, the peeling force of the separation layer 5 is 3gf/25 mm.

Of course, in other embodiments, the release layer 5 may also be applied to the side of the lands 4, i.e. to the surface other than the side 41 where the lands 4 are connected to the adhesive layer 6 of the carrier film 1, the release layer 5 being applied to the remaining surface.

Example four

On the premise that the thickness of the isolation area 7 is larger than that of the carrier film 1, a structure may be adopted in which an isolation film 71 is disposed in the isolation area 7, as shown in fig. 10, and the lower surface of the isolation film 71 is adhered to the adhesive layer 6 on the carrier film 1, so that when the waterproof film 21 deforms and sinks downward, it will contact the isolation film 71, but will not contact the adhesive layer 6, and the waterproof film 21 can be effectively prevented from being adhered by the adhesive layer 6.

In order to ensure that the waterproofing membrane 21 is completely free from contact with the adhesive layer 6 when it is recessed downwards, the width in the radial direction of the separating membrane 71 is 30-80% of the inner diameter of said first adhesive layer 22, i.e. d3 is 30-80% d1 in fig. 10, the inner diameter of the first adhesive layer 22 is 1-5mm, i.e. d1 is 1-5mm, and thus d3 is 0.3-4 mm.

In this embodiment, it is preferable that d3 is 50% d1, and the inner diameter of the first adhesive layer 22 is 5mm, that is, d1 is 5mm, and thus d3 is 2.5 mm.

The one-sided distance between the release film 71 and the first adhesive layer 22 is 0.05 to 0.8mm, i.e., S1 is 0.05 to 0.8mm in fig. 10, and in the present embodiment, S1 is preferably 0.6 mm.

EXAMPLE five

The present embodiment differs from the first to fourth embodiments in that the thickness of the isolation region 7 is smaller than the thickness of the carrier film 1.

Specifically, the isolation region 7 is a recessed hole 72 formed in the center of the region where the carrier film 1 faces the waterproof film 21, the recessed hole 72 is cut downward from the upper surface of the carrier film 1, specifically, the upper surface of the self-adhesive layer 11, to form an arc-shaped concave surface, which can penetrate through the carrier film 1, as shown in fig. 11, when the waterproof film 21 deforms, a part of the concave surface may protrude out of the recessed hole 72, and the recessed hole 72 may not penetrate through the carrier film 1, as shown in fig. 12, when the waterproof film 21 deforms, the inner wall of the recessed hole 72 is contacted.

In order to ensure that the separation region 7 still functions as an effective separation when the waterproofing membrane 21 is depressed to a greater extent, the maximum radial width of the depression hole 72 is 30 to 80% of the inner diameter of the first adhesive layer 22, i.e., d4 is 30 to 80% d1 in fig. 12. The inner diameter of the first adhesive layer 22 is 1-5mm, i.e. d1 is 1-5mm, so that d4 is 0.3-4 mm. In this embodiment, d1 is preferably 5mm, d4 is 60% d1, that is, d4 is preferably 3 mm.

TABLE 3

As shown in table 3, on the premise that the distance between the waterproof membrane 21 and the adhesive layer 6 is 60 μm, the height of the boss 4 is 70% of the distance between the waterproof membrane 21 and the adhesive layer 6, the inner diameter of the first adhesive layer 22 is 5mm, that is, d1 is 5mm, and the distance d between the center of the isolation region 7 and the center of the first adhesive layer 22 is 1/6d1, the waterproof membrane 21 is not adhered to the adhesive layer 6 during transportation, and particularly, when the maximum radial width of the recess hole 72 is 30 to 80% of the inner diameter of the first adhesive layer 22, the deformation amount of the waterproof membrane 21 is relatively small, the sound transmission performance of the waterproof membrane 21 of the same batch is within a certain range, and the difference between the maximum value and the minimum value of the sound transmission performance of the waterproof membrane 21 of the same batch is less than 0.1 dB.

EXAMPLE six

On the premise that the thickness of the isolation area 7 is smaller than that of the carrier film 1, the adhesive layer 11 on the carrier film 1 is not continuously coated and is coated at intervals, so that the adhesive layer 11 consists of a plurality of discontinuous coating areas and a plurality of discontinuous uncoated areas, as shown in fig. 13, the isolation area 7 is an area which is not coated with the adhesive layer 6, and the center of the area which is not coated with the adhesive layer 11 is opposite to the center of the waterproof film 21, namely the center of the isolation area 7-the area which is not coated with the adhesive layer 11, and the orthographic projection of the center of the waterproof film 21 is coincident.

The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, and any modifications and variations of the present invention are within the spirit and scope of the following claims.

Claims (10)

1. A waterproofing membrane composite assembly comprising:

a carrier film and a waterproofing membrane assembly;

the waterproofing membrane assembly comprises at least a waterproofing membrane and a first adhesive layer;

a waterproof membrane having air-permeable and/or sound-permeable properties;

the first bonding layer is of an annular structure, one side surface of the first bonding layer is connected with the waterproof film, and the other side surface of the first bonding layer is connected with the carrier film;

the method is characterized in that: one side of the carrier film facing the waterproof film is provided with an adhesive layer, an isolation area is formed on the carrier film corresponding to the waterproof film, and when the waterproof film deforms to one side of the carrier film, the isolation area cannot be adhered to the waterproof film.

2. The waterproof membrane composite assembly of claim 1, wherein: the center of the isolation region is offset from the center of the first adhesive layer by a distance d that is no greater than one quarter of the value of the inner diameter of the first adhesive layer.

3. The waterproof membrane composite assembly of claim 1, wherein: the area of the isolation region is 30-90% of the area of the inner circle of the first adhesive layer.

4. The waterproofing membrane composite assembly according to claim 1 or 2 or 3 wherein: the thickness of the isolation region is greater than the thickness of the carrier film.

5. The waterproof membrane composite assembly of claim 4, wherein: the distance between the waterproof film and the adhesive layer is 30-100 um; the isolation area is provided with a boss, one side of the boss is connected with the carrier film, the height of the boss is 40-90% of the distance between the waterproof film and the carrier film, and when the waterproof film deforms towards the side where the carrier film is located, the boss plays a supporting role for the waterproof film.

6. The waterproof membrane composite assembly of claim 5, wherein: the boss is coated with an isolating layer at least at one side close to the waterproof film; the isolation layer is a silicon oil layer, and the stripping force of the isolation layer is 1-10gf/25 mm; the inner diameter of the first bonding layer is 1-5 mm; the radial width of the boss is 30-80% of the inner diameter of the first adhesive layer; the unilateral distance between the boss and the first bonding layer is 0.05-0.8 mm.

7. The waterproof membrane composite assembly of claim 5, wherein: the boss is solid or hollow cylindrical; or the boss is in a solid or hollow frustum shape and has a structure with a big top and a small bottom or a big top and a small bottom; or the boss is formed by combining a plurality of block-shaped bodies which are arranged at intervals in a ring shape.

8. The waterproof membrane composite assembly of claim 4, wherein: the isolation area is provided with an isolation film of which one side surface is connected with the carrier film; the inner diameter of the first adhesive layer is 1-5mm, and the radial width of the isolation film is 30-80% of the inner diameter of the first adhesive layer.

9. The waterproofing membrane composite assembly according to claim 1 or 2 or 3 wherein: the thickness of the isolation region is smaller than that of the carrier film.

10. The waterproof membrane composite assembly of claim 9, wherein: the isolation area is a sunken hole formed in the center of the area, facing the waterproof membrane, of the carrier membrane; the concave hole penetrates through the carrier film; the maximum radial width of the recessed hole is 30-80% of the inner diameter of the first bonding layer;

or the adhesive layers on the carrier film are coated at intervals, and the isolation area is an area which is not coated with the adhesive layers; the center of the area which is not coated with the adhesive layer is opposite to the center of the waterproof membrane.

Images