Stretching self-adhesive sealing film

Abstract

The utility model aims to provide a stretching self-adhesive type sealing film which comprises an elastic layer and two adhesive layers, a reinforcing net is arranged in the elastic layer and comprises a plurality of transverse wires and a plurality of longitudinal wires, the transverse wires and the longitudinal wires are sequentially woven in a staggered mode to form the reinforcing net, and the two adhesive layers are attached to the two side faces of the elastic layer respectively. A plurality of adhesive bags which are distributed at intervals are arranged in at least one adhesive layer, and when the stretching self-adhesive sealing film is pulled, the elastic layer and the adhesive layers are transversely deformed, so that the adhesive bags are broken. Therefore, when the sealing film is not pulled by external force to deform, the surface of the sealing film is not sticky, and when the sealing film is pulled by external force to deform, the adhesive bag arranged in the adhesive layer is stressed to be broken, so that the surface of the sealing film is sticky, and the sealing film is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing film materials, in particular to a stretchable self-adhesive sealing film. Background Art

[0002] Sealing film refers to a thin film structure used to seal the bottle mouth. In the laboratory, a large amount of sealing film is needed to seal reagent bottles and other containers.

[0003] The current sealing film material is mainly a film with stickiness on one side. When in use, after tearing off the release film, the sticky side is attached to the bottle mouth and wrapped around it several times to seal it.

[0004] However, the existing sealing film has the following shortcomings in use: since operators wear gloves when working in the laboratory, the existing sealing film will stick to the operator's gloves during operation due to its stickiness, and after the release film is torn off, the existing sealing film has a tendency to roll up by itself, so that it sticks to itself, causing the sealing film to be scrapped, which is extremely inconvenient in actual use. Therefore, in order to solve the above technical problems, the stretch self-adhesive sealing film of the present application is proposed. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a stretchable self-adhesive sealing film which generates viscosity after being deformed by stretching and is easy to use.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A stretch self-adhesive sealing film, comprising:

[0008] an elastic layer, wherein a reinforcing net is disposed in the elastic layer, wherein the reinforcing net comprises a plurality of transverse wires and a plurality of longitudinal wires, wherein each of the transverse wires and each of the longitudinal wires are interlaced and woven in sequence to form the reinforcing net; and

[0009] Two adhesive layers, the two adhesive layers are respectively attached to two side surfaces of the elastic layer, and at least one of the adhesive layers is provided with a plurality of adhesive capsules distributed at intervals;

[0010] When the stretchable self-adhesive sealing film is subjected to tension, the elastic layer and the adhesive layer are both deformed laterally, thereby causing the adhesive capsule to rupture.

[0011] Optionally, the transverse threads and the longitudinal threads are both fibers.

[0012] Optionally, the transverse threads and the longitudinal threads are both one of spandex, PTT and acrylic.

[0013] Optionally, the adhesive layer is one of LDPE, HDPE, LLDPE, and PP.

[0014] Optionally, the elastic layer is provided with a plurality of through holes, and the stretch self-adhesive sealing film further comprises a filling layer, the filling layer extends from one side of the elastic layer through each of the through holes to the other side of the elastic layer, and the two adhesive layers are respectively arranged on the side of the filling layer away from the elastic layer.

[0015] Optionally, the elastic layer and the filling layer are both made of one of SBS, SEBS and TPE.

[0016] Optionally, the adhesive layer is recessed in a direction close to the via hole to form a groove.

[0017] Optionally, the distance between any two adjacent transverse wires is at least a multiple of 3 to the diameter of the transverse wire.

[0018] Optionally, the distance between any two adjacent longitudinal wires is consistent with the distance between any two adjacent transverse wires.

[0019] Compared with the prior art, the utility model has at least the following advantages:

[0020] The stretchable self-adhesive sealing film of the utility model comprises an elastic layer and two adhesive layers, a reinforcing net is arranged in the elastic layer, the reinforcing net comprises a plurality of transverse threads and a plurality of longitudinal threads, each transverse thread and each longitudinal thread are interlaced and woven in sequence to form a reinforcing net, the two adhesive layers are respectively attached to the two sides of the elastic layer, at least one adhesive layer is provided with a plurality of adhesive capsules distributed at intervals, when the stretchable self-adhesive sealing film is subjected to tension, the elastic layer and the adhesive layer are both deformed laterally, and then the adhesive capsules are ruptured. In this way, when the sealing film is not deformed by external force, the surface of the sealing film will not be sticky, when it is deformed by external force, the adhesive capsules arranged in the adhesive layer will be forced to rupture, so that the surface of the sealing film becomes sticky, so it is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of a partial cross-sectional structure of a stretchable self-adhesive sealing film according to one embodiment of the utility model;

[0023] Figure 2It is a schematic diagram of a partial cross-sectional structure of a stretchable self-adhesive sealing film according to another embodiment of the utility model;

[0024] Figure 3 It is a partial structural schematic diagram of a reinforcing net according to another embodiment of the utility model;

[0025] Figure 4 This is a partial structural schematic diagram of a stretch self-adhesive sealing film according to another embodiment of the present utility model;

[0026] Figure 5 for Figure 4 A schematic diagram of the partial cross-sectional structure of the stretched self-adhesive sealing film shown.

[0027] Description of reference numerals:

[0028] 10. Stretch self-adhesive sealing film; 100. Elastic layer; 200. Adhesive layer; 300. Reinforcement net; 310. Horizontal wire; 320. Vertical wire; 400. Adhesive capsule; 500. Filling layer; 210. Groove. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings show preferred embodiments of the present invention.

[0030] like Figures 1 to 3 As shown, a stretch self-adhesive sealing film 10 includes an elastic layer 100 and two adhesive layers 200. A reinforcing net 300 is arranged in the elastic layer 100. The reinforcing net 300 includes a plurality of transverse wires 310 and a plurality of longitudinal wires 320. The transverse wires 310 and the longitudinal wires 320 are woven in sequence to form the reinforcing net 300. The two adhesive layers 200 are respectively attached to the two side surfaces of the elastic layer 100. A plurality of adhesive capsules 400 distributed at intervals are arranged in at least one adhesive layer 200. When the stretch self-adhesive sealing film 10 is subjected to tension, the elastic layer 100 and the adhesive layer 200 are both deformed laterally, thereby causing the adhesive capsules 400 to rupture.

[0031] It should be noted that the two adhesive layers 200 are respectively arranged on the two sides of the elastic layer 100. A reinforcing net 300 is arranged in the elastic layer 100, wherein the reinforcing net 300 is a mesh structure formed by interlacing and weaving a plurality of transverse wires 310 and a plurality of longitudinal wires 320. It should be noted that the reinforcing net 300 is a structure with looseness. Further, an adhesive capsule 400 is arranged in at least one adhesive layer 200. In this way, when the stretch self-adhesive sealing film 10 of the present application is not pulled by an external force and is not deformed, the surface of the adhesive layer 200 will not be sticky. When the stretch self-adhesive sealing film 10 is pulled by an external force and deformed, the adhesive capsule 400 arranged in the adhesive layer 200 will be forced to break, so that the adhesive capsule 400 flows on the surface of the adhesive layer 200, thereby making the adhesive layer 200 sticky. In this way, the sealing film of the present application will only produce stickiness when it is pulled by an external force, so it is more convenient to use. In addition, since the reinforcing net 300 is provided in the elastic layer 100, the elastic layer 100 will only be deformed to a certain extent when being pulled, and will not be directly torn apart. Therefore, the user does not need to worry about the sealing film being torn apart in actual use, and the reliability is extremely high.

[0032] In one embodiment, only one of the adhesive layers 200 is provided with an adhesive capsule 400, so that when the stretch self-adhesive sealing film 10 is deformed by tension, only one side thereof is adhesive. In another embodiment, both adhesive layers 200 are provided with an adhesive capsule 400, so that when the stretch self-adhesive sealing film 10 is deformed by tension, both sides thereof are adhesive. In this way, a single-layer adhesive or double-layer adhesive sealing film can be selected according to different requirements for sealing containers.

[0033] In one embodiment, the transverse wires 310 and the longitudinal wires 320 are both fibers. In this way, the reinforcing net 300 formed by the transverse wires 310 and the longitudinal wires 320 has a certain structural strength when pulled by an external force, and can effectively prevent the sealing film from being pulled apart after a certain deformation occurs. Furthermore, the transverse wires 310 and the longitudinal wires 320 are both polyurethane fibers. Polyurethane fibers are structures with a certain elasticity, so that the elastic layer 100 has a certain elasticity while being prevented from being pulled apart, and has higher reliability.

[0034] Furthermore, in one embodiment, the elastic layer 100 is one of SBS, SEBS, and TPE. Among them, the full name of SBS is Styrene-Butadiene-Styrene, which is a thermoplastic elastomer. The full name of SEBS is Styrene-Ethylene-Butylene-Styrene, also known as hydrogenated SBS. The full name of TPE is Thermoplastic Elastomer, which is a thermoplastic polymer material with elasticity. In this way, it is ensured that the elastic layer 100 has a certain elasticity.

[0035] Furthermore, in one embodiment, the adhesive layer 200 is one of LDPE, HDPE, LLDPE, and PP. Among them, LDPE is the abbreviation of low-density polyethylene (Low Density Polyethylene), which is a plastic material. HDPE stands for high-density polyethylene, which is a thermoplastic resin with high crystallinity and non-polarity generated by ethylene copolymerization. LLDPE is linear low-density polyethylene (Linear Low-Density Polyethylene), which is a thermoplastic resin. PP stands for polypropylene (Polypropylene), which is a colorless, odorless, non-toxic, translucent thermoplastic synthetic resin. Further, each adhesive capsule 400 is mixed in the above-mentioned materials by mixing, and then the above-mentioned materials are coated on the elastic layer 100 to form a structure in which the adhesive capsule 400 is provided in the adhesive layer 200. Further, in one embodiment, the adhesive capsule 400 is a bead structure formed by an adhesive, which has viscosity.

[0036] like Figure 4 and Figure 5 As shown, in one embodiment, a plurality of through holes are opened on the elastic layer 100, and the stretch self-adhesive sealing film 10 further includes a filling layer 500, which extends from one side of the elastic layer 100 through each of the through holes to the other side of the elastic layer 100, and two adhesive layers 200 are respectively arranged on the side of the filling layer 500 away from the elastic layer 100.

[0037] It should be noted that when the stretched self-adhesive sealing film 10 is used to seal utensils such as vessels, the above structure is provided to facilitate the injection of experimental materials into the utensils or the extraction of experimental materials from the utensils and the puncture of the syringe. Specifically, a plurality of vias are formed on the elastic layer 100, so that the reinforcing mesh 300 at the position of the vias is cut off, and then a filling layer 500 is formed on both sides of the elastic layer 100, wherein the filling layer 500 is filled in each via. Furthermore, two adhesive layers 200 are respectively provided on both sides of the filling layer 500. In this way, the syringe can be easily punctured at the position of the vias. In one embodiment, the material of the filling layer 500 is one of SBS, SEBS, and TPE.

[0038] like Figure 4 and Figure 5 As shown, in one embodiment, the adhesive layer 200 is recessed toward the via hole to form a groove 210. Thus, by forming the groove 210 on the surface, it is convenient for the user to identify the position of the via hole, so that the syringe can accurately puncture the via hole.

[0039] In one embodiment, the distance between any two adjacent transverse wires 310 and the diameter of the transverse wire 310 are at least 3 times. In this way, the reinforcing mesh 300 formed by the transverse wires 310 and the longitudinal wires 320 is ensured to have a certain degree of looseness, so that the elastic layer 100 can produce a certain elastic deformation when subjected to tension.

[0040] Furthermore, in one embodiment, the distance between any two adjacent longitudinal wires 320 is consistent with the distance between any two adjacent transverse wires 310. In this way, the transverse and longitudinal deformation properties of the reinforcing net 300 are consistent. Further, in one embodiment, the distance between any two adjacent transverse wires 310 is different from the distance between any two adjacent longitudinal wires 320. In this way, the transverse and longitudinal deformation properties of the reinforcing net 300 are different, which means that the deformation that occurs when the stretched self-adhesive sealing film 10 is pulled horizontally and pulled vertically will be different, so that the number of ruptures of the adhesive capsule 400 in the two processes is different, and then the viscosity generated is different. In this way, it is possible to choose to pull the sealing film horizontally or vertically to deform it according to the actual sealing viscosity requirements.

[0041] In one embodiment, a method for manufacturing a stretchable self-adhesive sealing film 10 is as follows:

[0042] Step S1: obtaining a reinforcing net 300;

[0043] Step S2: The reinforcing mesh 300 is impregnated to form an elastic layer 100 on the outside of the reinforcing mesh 300;

[0044] Step S3: coating an adhesive layer 200 on both sides of the elastic layer 100 to form a stretchable self-adhesive sealing film 10 .

[0045] Furthermore, in another embodiment, a method for manufacturing a stretch self-adhesive sealing film 10 is:

[0046] Step S1: obtaining a reinforcing net 300;

[0047] Step S2: The reinforcing mesh 300 is impregnated to form an elastic layer 100 on the outside of the reinforcing mesh 300;

[0048] Step S3: forming a plurality of via holes on the elastic layer 100 by punching process;

[0049] Step S4: coating a filling layer 500 on both sides of the elastic layer 100 respectively, so that the filling layer 500 fills each via hole.

[0050] Step S5: coating a layer of adhesive layer 200 on both sides of the filling layer 500 to form a stretchable self-adhesive sealing film 10 .

[0051] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A stretchable self-adhesive sealing film, characterized in that: include: an elastic layer, wherein a reinforcing net is disposed in the elastic layer, wherein the reinforcing net comprises a plurality of transverse wires and a plurality of longitudinal wires, wherein each of the transverse wires and each of the longitudinal wires are interlaced and woven in sequence to form the reinforcing net; and Two adhesive layers, the two adhesive layers are respectively attached to two side surfaces of the elastic layer, and at least one of the adhesive layers is provided with a plurality of adhesive capsules distributed at intervals; When the stretchable self-adhesive sealing film is subjected to tension, the elastic layer and the adhesive layer are both deformed laterally, thereby causing the adhesive capsule to rupture.

2. The stretch self-adhesive sealing film according to claim 1, characterized in that: The transverse threads and the longitudinal threads are both fibers.

3. The stretch self-adhesive sealing film according to claim 2, characterized in that: The transverse threads and the longitudinal threads are each one of spandex, PTT and acrylic.

4. The stretch self-adhesive sealing film according to claim 1, characterized in that: The adhesive layer is one of LDPE, HDPE, LLDPE and PP.

5. The stretch self-adhesive sealing film according to claim 1, characterized in that: The elastic layer is provided with a plurality of through holes, and the stretch self-adhesive sealing film further comprises a filling layer, which extends from one side of the elastic layer through each of the through holes to the other side of the elastic layer, and the two adhesive layers are respectively arranged on the side of the filling layer away from the elastic layer.

6. The stretch self-adhesive sealing film according to claim 5, characterized in that: The elastic layer and the filling layer are both made of one of SBS, SEBS and TPE.

7. The stretch self-adhesive sealing film according to claim 5, characterized in that: The adhesive layer is recessed toward the via hole to form a groove.

8. The stretch self-adhesive sealing film according to claim 1, characterized in that: The minimum multiple of the distance between any two adjacent transverse wires and the diameter of the transverse wire is 3.

9. The stretch self-adhesive sealing film according to claim 8, characterized in that: The distance between any two adjacent longitudinal threads is consistent with the distance between any two adjacent transverse threads.

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