A composite elastic rubber net and preparation method thereof

Abstract

The present invention relates to the field of adhesive mesh technology, and in particular to a composite elastic adhesive mesh and a preparation method thereof. The composite elastic adhesive mesh comprises an elastic adhesive mesh layer, wherein the elastic adhesive mesh layer is formed by staggered arrangement of a plurality of mesh bars to form a plurality of mesh structures arranged in an array, and the mesh density of the mesh structure is 20-100 meshes / cm 2 The elastic rubber mesh layer is a TPE elastic rubber mesh layer, a PC elastic rubber mesh layer, an EVA elastic rubber mesh layer, an OBC elastic rubber mesh layer, a TPU elastic rubber mesh layer, a PP elastic rubber mesh layer, a PE elastic rubber mesh layer, a PU elastic rubber mesh layer, a PUR elastic rubber mesh layer, a TPE / POP elastic rubber mesh layer or an EVA / TPE / POP / OBC elastic rubber mesh layer. The composite elastic rubber mesh of the present invention has good softness, tensile elasticity and resilience, is not easy to break when stretched, has good recovery effect after stretching, and has excellent air permeability, water permeability, softness and wearing comfort when applied to clothing.

Description

Technical Field

[0001] The invention relates to the technical field of rubber nets, and in particular to a composite elastic rubber net and a preparation method thereof. Background Art

[0002] At present, in the manufacturing process of clothing underwear, underwear, shoes, hats, shaping bras, outdoor sportswear and other clothing, non-environmentally friendly resin materials or adhesive films and glues are often used for interlayer bonding. Firstly, the resin materials used are not environmentally friendly, and long-term wearing will be harmful to human health and is not friendly to the environment; secondly, the adhesive films and glues used are not breathable and waterproof, which reduces the breathability and quick-drying properties of underwear, underwear, sportswear and other clothing, and reduces the wearing comfort.

[0003] At present, the idea of ​​using adhesive mesh has been proposed to solve the above problems. It can not only bond the layers, but also has better air permeability and water permeability, thus improving the wearing comfort of clothing and preventing stuffiness. However, when the adhesive mesh material is currently used in clothing, basically a single adhesive mesh layer is cut and pressed, and the adhesive mesh is directly compounded on the surface of clothing. However, since the adhesive mesh has mesh holes and has a certain elasticity, when compounding the adhesive mesh on the surface of clothing, it is easy to cause the adhesive mesh to be difficult to align with the position of the clothing, and the adhesive mesh is easy to shift, and the adhesion is low. In addition, due to its mesh structure and elastic properties, it is difficult to cut, which is extremely inconvenient to use. Summary of the invention

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a composite elastic rubber mesh, which has excellent softness, tensile elasticity and resilience, is not easy to break when stretched, has good recovery effect after stretching, and has excellent air permeability, water permeability, softness and wearing comfort when used in clothing.

[0005] Another object of the present invention is to provide a method for preparing a composite elastic rubber mesh, which has a simple process, convenient operation and control, stable quality, high production efficiency, and low production cost. The prepared composite elastic rubber mesh has better softness, stretchability and tensile resilience, high mechanical strength, good stability, and can be mass-produced industrially.

[0006] Another object of the present invention is to provide a method for preparing a composite elastic rubber mesh, which has a simple process, convenient operation and control, stable quality, high production efficiency, and low production cost. The prepared composite elastic rubber mesh has better softness, stretchability and tensile resilience, high mechanical strength, good stability, and can be mass-produced industrially.

[0007] The object of the present invention is achieved by the following technical scheme: a composite elastic rubber net, the composite elastic rubber net comprises an elastic rubber net layer, the elastic rubber net layer is formed by a plurality of mesh bars arranged in an interlaced manner, and forms a plurality of mesh structures arranged in an array, the mesh density of the mesh structure is 20-100 / cm 2 The elastic rubber mesh layer is a TPE elastic rubber mesh layer, a PC elastic rubber mesh layer, an EVA elastic rubber mesh layer, an OBC elastic rubber mesh layer, a TPU elastic rubber mesh layer, a PP elastic rubber mesh layer, a PE elastic rubber mesh layer, a PU elastic rubber mesh layer, a PUR elastic rubber mesh layer, a TPE / POP elastic rubber mesh layer or an EVA / TPE / POP / OBC elastic rubber mesh layer.

[0008] The composite elastic rubber net of the present invention has good softness, tensile elasticity and resilience, is not easy to break when stretched, has good recovery effect after stretching, and has excellent air permeability, water permeability, softness and wearing comfort when applied to clothing.

[0009] The present invention can make the elastic rubber mesh layer have better softness, tensile elasticity and resilience by strictly controlling the mesh density of the mesh structure. Since the mesh has multi-directional stretching and resilience, if the mesh density is too large, the firmness and stability of the elastic rubber mesh layer will be reduced, and the mesh structure will be easily damaged after stretching, causing the elastic rubber mesh layer to be easily torn; if the mesh density is too small, the elastic stretchability and softness of the elastic rubber mesh layer will be reduced, the hardness will be large, and the stretching resilience rate will be low, which will reduce the softness and wearing comfort of the elastic rubber mesh layer in the clothing. More preferably, the mesh density of the mesh structure is 20 / cm 2 , 40 pieces / cm 2 , 60 pieces / cm 2 , 80 pieces / cm 2 or 100 pcs / cm 2 .

[0010] The present invention adopts the above-mentioned material or composite material as the elastic rubber mesh layer. The elastic rubber mesh of the above-mentioned composite material is safe for human body, has better softness, stretchability and resilience, high tensile elasticity, good rebound effect, high stability, is not easy to break when stretched, passes the European standard test for water washing, does not break after multiple water washings, has a long service life and is highly practical.

[0011] Preferably, the Shore hardness of the elastic rubber mesh layer is 23-200A, and the tensile resilience of the elastic rubber mesh layer is 90-97.5%.

[0012] The present invention can make the elastic rubber mesh layer have better softness and resilience by strictly controlling the Shore hardness and tensile resilience of the elastic rubber mesh layer. If the Shore hardness is too large, the softness of the elastic rubber mesh layer is reduced, the tensile resilience is low, and the wearing comfort of the elastic rubber mesh composite clothing is reduced. If the Shore hardness is too small, the firmness and stability of the elastic rubber mesh are reduced, and it is easy to tear when stretched, causing damage to the elastic rubber mesh layer and reducing the service life. More preferably, the Shore hardness of the elastic rubber mesh layer is 23A, 50A, 100A, 150A or 200A.

[0013] Preferably, the mesh structure is a square mesh, a rectangular mesh, a circular mesh, a diamond mesh, a hexagonal mesh, an elliptical mesh or a triangular mesh; the cross section of the mesh reinforcement is circular, elliptical, square or trapezoidal.

[0014] The present invention strictly controls the shape of the mesh structure, has better elasticity, better resilience, is easy to recover to its original shape after stretching and deformation, is not easy to deform, and has high practicality. The present invention strictly controls the cross-sectional shape of the mesh reinforcement, so that the mesh reinforcement and the entire elastic rubber mesh layer have better stability, are not easy to break after stretching, have better resilience, and are not easy to deform.

[0015] Preferably, the composite elastic adhesive net also includes a first release layer, a first release adhesive layer, a second release adhesive layer and a second release layer, the upper surface of the first release adhesive layer is bonded to the lower surface of the first release layer, the lower surface of the first release adhesive layer is bonded to the upper surface of the elastic adhesive net layer, the upper surface of the second release adhesive layer is bonded to the lower surface of the elastic adhesive net layer, and the lower surface of the second release adhesive layer is bonded to the upper surface of the second release layer.

[0016] The present invention can effectively bond and fix the elastic adhesive mesh layer by arranging the first release layer, the first release adhesive layer, the second release adhesive layer and the second release layer, and is easy to cut the entire composite elastic adhesive mesh. After tearing off one of the release layers, the elastic adhesive mesh layer can be accurately aligned with the composite position of the clothing. After the composite and lamination are completed, the other release layer is torn off for subsequent processing, thereby achieving the composite accuracy of the elastic adhesive mesh layer and having high practicality.

[0017] Preferably, the thickness of the elastic adhesive mesh layer is 200-2500 μm, the thickness of the first release adhesive layer and the second release adhesive layer are both 80-120 μm, and the thickness of the first release layer and the second release layer are both 300-500 μm.

[0018] The present invention strictly controls the thickness of the elastic adhesive mesh layer, the first release adhesive layer, the second release adhesive layer, the first release layer and the second release layer, so that the prepared composite elastic adhesive mesh has better processing performance, is easy to cut and composite processing, has high interlayer stability, and is not prone to interlayer separation; if the thickness of the elastic adhesive mesh layer is thicker, its own softness and elasticity are reduced, and the tensile resilience is low; if the thickness of the elastic adhesive mesh layer is thinner, its stability is reduced, and it is easy to break under tension, which reduces the service life; more preferably, the thickness of the elastic adhesive mesh layer is 200μm, 1000μm, 1500μm, 2000μm or 2500μm.

[0019] If the thickness of the first release adhesive layer and the second release adhesive layer is relatively thin, the adhesion stability of the elastic adhesive mesh on the release layer is reduced, making the composite elastic adhesive mesh difficult to cut and difficult to composite process; if the thickness of the first release adhesive layer and the second release adhesive layer is relatively thick, it is easy to be difficult to tear off the release layer during the composite process due to excessive adhesion, and it is easy to damage the elastic adhesive mesh layer when tearing off the release layer. More preferably, the thickness of the first release adhesive layer and the second release adhesive layer are both 80μm, 90μm, 100μm, 110μm or 120μm.

[0020] If the thickness of the first release layer and the second release layer is thin, the composite stability of the elastic adhesive mesh layer is reduced, making the composite elastic adhesive mesh difficult to cut and composite processing; more preferably, the thickness of the first release layer and the second release layer are both 300μm, 350μm, 400μm, 450μm or 500μm.

[0021] Preferably, the release force between the first release adhesive layer and the elastic adhesive mesh layer and the release force between the second release adhesive layer and the elastic adhesive mesh layer are both 400-1000gf; the first release layer and the second release layer are both single-silicone release paper or double-silicone release paper; the first release adhesive layer and the second release adhesive layer are both silicone pressure-sensitive adhesive layers, acrylic adhesive layers or polyurethane adhesive layers.

[0022] The present invention can make the release layer easy to tear off from the elastic mesh layer without leaving glue by strictly controlling the release force between the first release adhesive layer and the elastic mesh layer and the release force between the second release adhesive layer and the elastic mesh layer, thereby improving the processing convenience of the composite elastic mesh; if the release force between the first release adhesive layer and the elastic mesh layer and the release force between the second release adhesive layer and the elastic mesh layer are too large, the elastic mesh layer is easily damaged when the release adhesive layers are torn off, thereby destroying its structure and reducing its service life; more preferably, the release force between the first release adhesive layer and the elastic mesh layer and the release force between the second release adhesive layer and the elastic mesh layer are 400gf, 500gf, 600gf, 700gf, 800gf, 900gf or 1000gf. The single-silicone release paper used is a release paper with a layer of silicone coated on one side, and the double-silicone release paper used is a release paper with a layer of silicone coated on both sides. By using single-silicone release paper or double-silicone release paper, the flatness and waterproofness of the release layer can be improved, the coating flatness of the release adhesive layer on the surface of the release layer can be improved, and the waterproofness of the composite elastic adhesive network can be improved; and by using glassine release paper, the paper is dense and uniform, and has better strength, light transmittance, high temperature resistance, oil resistance, moisture resistance and other properties, which can improve the strength and stability of the composite elastic adhesive network and extend its service life.

[0023] By strictly controlling the release adhesive layer to be a silicone pressure-sensitive adhesive layer, an acrylic adhesive layer or a polyurethane adhesive layer, the adhesive force is good, the release layer and the elastic adhesive mesh layer can be stably bonded, the release layer is easy to tear off without leaving any adhesive, it is easy to process and has high practicality.

[0024] Preferably, the elastic mesh layer has a gram weight of 300-450 g / m 2 The first release adhesive layer and the second release adhesive layer have a gram weight of 400-1000 g / m 2 The first release layer and the second release layer have a grammage of 62-120 g / m 2 .

[0025] The present invention can make the prepared composite elastic adhesive mesh have better processing performance, be easy to cut and composite processing, have high interlayer stability, and be not easy to separate from each other by strictly controlling the gram weight of the elastic adhesive mesh layer, the first release adhesive layer, the second release adhesive layer, the first release layer and the second release layer; if the gram weight of the elastic adhesive mesh layer is too small, its stability is reduced, and it is easy to break by stretching, which reduces the service life; if the gram weight of the first release adhesive layer and the second release adhesive layer is too small, the bonding stability of the elastic adhesive mesh to the release layer is reduced, making the composite elastic adhesive mesh difficult to cut and composite processing; if the gram weight of the first release layer and the second release layer is too small, the composite stability of the elastic adhesive mesh layer is reduced, making the composite elastic adhesive mesh difficult to cut and composite processing. More preferably, the gram weight of the elastic adhesive mesh layer is 300g / m2 , 330g / m 2 , 360g / m 2 , 390g / m 2 , 420g / m 2 or 450g / m 2 The first release adhesive layer and the second release adhesive layer have a gram weight of 400g / m 2 , 550g / m 2 , 700g / m 2 , 850g / m 2 or 1000g / m 2 The first release layer and the second release layer have a gram weight of 62g / m 2 , 80g / m 2 , 95g / m 2 , 110g / m 2 or 120g / m 2 .

[0026] Preferably, the elastic rubber mesh layer is a TPE / POP elastic rubber mesh layer, and the TPE / POP elastic rubber mesh layer is made of a TPE / POP composite material, and the TPE / POP composite material includes the following raw materials in parts by weight:

[0027]

[0028] The present invention adopts the above-mentioned raw materials to prepare TPE / POP composite materials, so that the prepared TPE / POP elastic rubber mesh layer has better softness, stretchability and resilience, high elasticity, good mechanical properties, high stability, the stretched rubber mesh is not easy to break, and has good processability.

[0029] Preferably, the elastic rubber mesh layer is an EVA / TPE / POP / OBC elastic rubber mesh layer, and the EVA / TPE / POP / OBC elastic rubber mesh layer is made of an EVA / TPE / POP / OBC composite material, and the EVA / TPE / POP / OBC composite material includes the following raw materials in parts by weight:

[0030]

[0031]

[0032] The present invention adopts the above-mentioned types of raw materials to prepare the EVA / TPE / POP / OBC composite material, so that the prepared EVA / TPE / POP / OBC elastic rubber mesh layer has better softness, stretchability and resilience, high elasticity, good mechanical properties, high stability, the stretched rubber mesh is not easy to break, and has good processing formability.

[0033] In the above-mentioned TPE / POP composite material or EVA / TPE / POP / OBC composite material, the terminal hydroxyl polydimethylsiloxane used can prevent the composite material from becoming hard, having low plasticity, and having reduced processing performance during storage, thereby improving the stability of the elastic rubber network (if a structured composite material has already appeared, it is necessary to re-mix or heat-treat to improve the structuring phenomenon, but at the same time, the process cost is increased and the production efficiency and quality are reduced). At the same time, the terminal hydroxyl polydimethylsiloxane can react with the Si-OH group on the surface of the reinforcing agent to make it hydrophobic, further improve the dispersibility of the reinforcing agent in the composite material system, and inhibit the structuring of the composite material; and by strictly controlling the amount of the terminal hydroxyl polydimethylsiloxane, the prepared elastic rubber network can have better resilience. If the amount of the terminal hydroxyl polydimethylsiloxane is too much, the resilience of the elastic rubber network is reduced and the hardness is relatively large. If the amount of the terminal hydroxyl polydimethylsiloxane is too little, the adhesion between the raw materials is reduced, and structuring is likely to occur.

[0034] The reinforcing agent A used in the TPE / POP composite material and the reinforcing agent B used in the EVA / TPE / POP / OBC composite material can effectively improve the strength of the composite material, so that the elastic rubber net prepared has high tensile strength, good resilience after stretching, good mechanical strength, is not easy to break when stretched, and has high stability; preferably, the reinforcing agent A and the reinforcing agent B can be a specific surface area of ​​140-170m 2 / g of precipitated silica can react with terminal hydroxyl polydimethylsiloxane to produce Si-OH group, improve the dispersion of the reinforcing agent in the silicone rubber system, inhibit the structuring of the composite material, and improve the mechanical strength and stability of the composite material such as elasticity and tensile strength. If traditional fumed silica is used as a reinforcing agent, although it can improve the mechanical strength of the composite material, it also greatly reduces the resilience of the composite material, has a high hardness, reduces the tensile rebound effect and softness of the elastic rubber network, and further reduces its processing performance and wearing comfort.

[0035] The crosslinking agent A used in the TPE / POP composite material can effectively promote the crosslinking polymerization reaction of styrene-butadiene-styrene block copolymer and polyolefin plastomer, with high crosslinking efficiency, and improve the weather resistance, stability, tensile strength, elasticity, softness and other mechanical strength of the composite material; similarly, the crosslinking agent B used in the EVA / TPE / POP / OBC composite material can effectively promote the crosslinking polymerization reaction between vinyl acetate-ethylene copolymer, styrene-butadiene-styrene block copolymer, polyolefin plastomer and polyolefin block copolymer, with high crosslinking efficiency, and improve the weather resistance, stability, tensile strength, elasticity, softness and other mechanical strength of the material. Preferably, the crosslinking agent A and the crosslinking agent B can be at least one of pentaerythritol, trimethylolpropane and methacrylate acetoacetoxyethyl. Among them, the pentaerythritol used is non-toxic, harmless and non-irritating to the human body, does not cause metabolic changes to the human body, and has high stability; the trimethylolpropane used is easily soluble in water, has high cross-linking efficiency, can quickly promote the cross-linking of materials, and has high stability; the methyl methacrylate acetoacetoxyethyl ester used has excellent elasticity, water resistance and corrosion resistance, low-temperature curing and cross-linking, is environmentally friendly and does not release formaldehyde, can improve the adhesion of the prepared elastic rubber net on clothing, and improve the lamination stability between the elastic rubber net and clothing.

[0036] The antistatic agent A used in the TPE / POP composite material and the antistatic agent B used in the EVA / TPE / POP / OBC composite material can effectively improve the antistatic effect of the composite material, so that the prepared mesh reinforcement and elastic rubber mesh layer have better antistatic effect, and avoid the elastic rubber mesh from affecting its lamination adhesion and lamination position accuracy due to static electricity in the subsequent lamination to clothing, thereby improving the processing stability and processing convenience of the elastic rubber mesh; preferably, the antistatic agent A and the antistatic agent B are composed of 2-3 parts of polyether ester amide, 0.5- The antistatic agent is composed of a mixture of 1.5 parts of alkyl amino acids and 2.5-4.5 parts of polyethylene glycol methacrylic acid copolymers. The antistatic agent prepared by the above-mentioned raw materials can react compatibly with other materials in the composite material, and has a stable and lasting antistatic effect. It can be distributed in the composite material system in a fine layer or tendon shape to form a conductive surface layer, while the central part is distributed in a spherical shape to form a core-shell layer, thereby reducing the volume resistance of the composite material and achieving the antistatic effect, so that the elastic rubber net prepared is not affected by static electricity and its lamination stability and accuracy with the clothing fabric.

[0037] The vulcanizing agent A used in the TPE / POP composite material and the vulcanizing agent B used in the EVA / TPE / POP / OBC composite material can effectively improve the vulcanization crosslinking effect of the composite material system, significantly shorten the vulcanization time, and improve the mechanical strength and stability of the elastic rubber net after molding, such as tensile strength, tensile resilience, elongation at break, and tear strength. Preferably, the vulcanizing agent A and the vulcanizing agent B are both composed of a mixture of 2-3 parts of 2,5-dimethyl-2,5-di-tert-butyl peroxide hexane, 1.0-1.5 parts of diisopropylbenzene peroxide, and 1.2-2.0 parts of di-tert-butyl peroxide.

[0038] Another object of the present invention is achieved by the following technical solution: A method for preparing the composite elastic rubber net as described above comprises the following steps:

[0039] Step (1): melt-extrude the TPE / POP composite material to form a mesh, and then perform rotational molding and cooling to shape the mesh to obtain a mesh primary product;

[0040] Step (2): shaping and pulling the mesh primary product obtained in step (1) to obtain a TPE / POP elastic rubber mesh layer;

[0041] Step (3): taking the first release layer and the second release layer respectively, coating the release adhesive on the surface of the first release layer and the surface of the second release layer respectively, forming the first release adhesive layer and the second release adhesive layer after the first heat pressing, and respectively preparing the first composite layer and the second composite layer;

[0042] Step (4): Cover the TPE / POP elastic adhesive mesh layer obtained in step (2) on the surface of the first release adhesive layer of the first composite layer, and then cover one side of the second release adhesive layer of the second composite layer on the surface of the elastic adhesive mesh layer, and obtain a composite elastic adhesive mesh after a second heat pressing.

[0043] The present invention prepares the composite elastic rubber mesh by adopting the above steps, and the process is simple, the operation and control are convenient, the quality is stable, the production efficiency is high, and the production cost is low. The prepared composite elastic rubber mesh can have better softness, stretchability and tensile resilience, high mechanical strength, good stability, and can be mass-produced industrially.

[0044] Among them, in the step (1), the specific steps are: first placing the composite material in the hopper of the extrusion equipment, heating and melting it, and then extruding it through the head of the extrusion equipment to form mesh ribs, and the head arranges the extruded mesh ribs in an interlaced manner to form a mesh by rotating extrusion, and the mesh is cooled and shaped by a cylindrical cooling and shaping device (placed in a cooling water tank), thereby obtaining a mesh primary product that has not been stretched and pulled.

[0045] In the step (2), the specific steps are: the unstretched mesh primary product is subjected to longitudinal stretching treatment and / or transverse stretching treatment, then subjected to a pulling treatment, and then subjected to shaping, thereby obtaining an elastic rubber mesh. The stretching force of the longitudinal stretching and / or transverse stretching is 10-25 N. Preferably, the elastic rubber mesh layer obtained after the longitudinal stretching and transverse stretching has multi-directional stretching resilience, high softness, and good rebound effect.

[0046] Preferably, in the step (1), the temperature of the first zone of the melt extrusion of the TPE / POP composite material is 140-150°C, the temperature of the second zone is 145-155°C, the temperature of the third zone is 160-170°C, the temperature of the fourth zone is 150-160°C, and the temperature of the fifth zone is 140-150°C; in the step (3), the pressure of the first heat pressing after coating the release adhesive is 1-5N / cm 2 , the hot pressing temperature is 120-145℃, and the hot pressing time is 8-15s.

[0047] The present invention can stably solidify and form the release adhesive on the surface of the release layer by strictly controlling the pressure, temperature and time of the first heat pressing, thereby improving the adhesion stability between the release adhesive and the release layer. When the release layer is torn off in the subsequent processing, the release adhesive and the release layer are not easily separated, thereby avoiding the residual adhesive phenomenon after tearing off and affecting the use of the elastic adhesive net.

[0048] In the step (4), the pressure of the second heat pressing is 5-30N / cm 2 , the hot pressing temperature is 165-185℃, and the hot pressing time is 15-45s.

[0049] The present invention can stably bond the elastic adhesive mesh layer between the first release adhesive layer and the second release adhesive layer by strictly controlling the pressure, temperature and time of the second heat pressing, thereby improving the interlayer stability of the composite elastic adhesive mesh, making the composite elastic adhesive mesh easy to cut and process as a whole, and being temporarily bonded, the release layer is easy to tear off in the subsequent processing process without residual adhesive and the like.

[0050] Another object of the present invention is achieved by the following technical solution: A method for preparing the composite elastic rubber mesh as described above comprises the following steps:

[0051] Step A: melt-extrude the EVA / TPE / POP / OBC composite material to form a mesh, and then sequentially perform rotational molding and cooling to shape the mesh to obtain a mesh primary product;

[0052] Step B: shaping and pulling the net-shaped primary product obtained in step A to obtain an EVA / TPE / POP / OBC elastic rubber net layer;

[0053] Step C: taking the first release layer and the second release layer respectively, coating the release adhesive on the surface of the first release layer and the surface of the second release layer respectively, forming the first release adhesive layer and the second release adhesive layer after the first heat pressing, and respectively preparing the first composite layer and the second composite layer;

[0054] Step D: Cover the EVA / TPE / POP / OBC elastic adhesive mesh layer obtained in step B on the surface of the first release adhesive layer of the first composite layer, and then cover one side of the second release adhesive layer of the second composite layer on the surface of the elastic adhesive mesh layer, and obtain a composite elastic adhesive mesh after a second heat pressing.

[0055] The present invention prepares the composite elastic rubber mesh by adopting the above steps, and the process is simple, the operation and control are convenient, the quality is stable, the production efficiency is high, and the production cost is low. The prepared composite elastic rubber mesh can have better softness, stretchability and tensile resilience, high mechanical strength, good stability, and can be mass-produced industrially.

[0056] The present invention can stably solidify and form the release adhesive on the surface of the release layer by strictly controlling the pressure, temperature and time of the first heat pressing, thereby improving the adhesion stability between the release adhesive and the release layer. When the release layer is torn off in the subsequent processing, the release adhesive and the release layer are not easily separated, thereby avoiding the residual adhesive phenomenon after tearing off, which affects the use of the elastic adhesive net.

[0057] Among them, in step A, the specific steps are: first placing the composite material in the hopper of the extrusion equipment, heating and melting it, and then extruding it through the head of the extrusion equipment to form mesh ribs, and the head arranges the extruded mesh ribs in an interlaced manner to form a mesh by rotating extrusion, and the mesh is cooled and shaped by a cylindrical cooling and shaping device (placed in a cooling water tank), so as to obtain a mesh primary product without stretching and traction.

[0058] In the step B, the specific steps are: the unstretched mesh primary product is subjected to longitudinal stretching treatment and / or transverse stretching treatment, then subjected to a pulling treatment, and then subjected to shaping, thereby obtaining an elastic rubber mesh. The stretching force of the longitudinal stretching and / or transverse stretching is 5-18 N. Preferably, the elastic rubber mesh layer obtained after the longitudinal stretching and transverse stretching has multi-directional stretching resilience, high softness, and good rebound effect.

[0059] Preferably, in step A, the temperature of the melt extrusion zone of the EVA / TPE / POP / OBC composite material is 120-130°C, the temperature of the zone 2 is 125-135°C, the temperature of the zone 3 is 135-145°C, the temperature of the zone 4 is 130-140°C, and the temperature of the zone 5 is 120-130°C;

[0060] In the step C, the pressure of the first heat pressing after coating the release adhesive is 1-5N / cm 2, the hot pressing temperature is 90-115℃, and the hot pressing time is 8-15s;

[0061] In step D, the second heat pressing pressure is 5-30N / cm 2 , the hot pressing temperature is 125-145℃, and the hot pressing time is 15-45s.

[0062] The present invention can stably bond the elastic adhesive mesh layer between the first release adhesive layer and the second release adhesive layer by strictly controlling the pressure, temperature and time of the second heat pressing, thereby improving the interlayer stability of the composite elastic adhesive mesh, making the composite elastic adhesive mesh easy to cut and process as a whole, and being temporarily bonded, the release layer is easy to tear off in the subsequent processing process without residual adhesive and the like.

[0063] Preferably, a method for applying the composite elastic adhesive mesh prepared above to clothing fabrics comprises the following steps:

[0064] Step ①: tear off the first release layer or the second release layer, laminate one side of the elastic rubber mesh layer on the clothing fabric, and then tear off the remaining second release layer or the first release layer to obtain a laminated fabric;

[0065] Step ②: subjecting the laminated fabric of step ① to a heat pressing treatment to obtain a clothing fabric covered with an elastic rubber net.

[0066] In the step ②, the temperature of the hot pressing is 175-185° C., the pressure of the hot pressing is 4.5*101 KPa-5.5*101 KPa, and the time of the hot pressing is 25-35 s.

[0067] The beneficial effects of the present invention are: the composite elastic rubber net of the present invention has better softness, tensile elasticity and resilience, is not easy to break when stretched, has good recovery effect after stretching, and has excellent air permeability, water permeability, softness and wearing comfort when applied to clothing.

[0068] The composite elastic rubber mesh preparation method of the present invention has simple process, convenient operation and control, stable quality, high production efficiency and low production cost. The composite elastic rubber mesh prepared can have better softness, stretchability and tensile resilience, high mechanical strength and good stability, and can be mass-produced industrially.

[0069] The composite elastic rubber mesh preparation method of the present invention has simple process, convenient operation and control, stable quality, high production efficiency and low production cost. The composite elastic rubber mesh prepared can have better softness, stretchability and tensile resilience, high mechanical strength and good stability, and can be mass-produced industrially. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 It is a cross-sectional schematic diagram of the present invention.

[0071] The reference numerals are: 1—first release layer, 2—first release adhesive layer, 3—elastic adhesive mesh layer, 4—second release adhesive layer, 5—second release layer. DETAILED DESCRIPTION

[0072] In order to facilitate the understanding of those skilled in the art, the following embodiments and attached Figure 1 The present invention is further described, and the contents mentioned in the implementation modes are not intended to limit the present invention.

[0073] Example 1

[0074] A composite elastic rubber net, comprising an elastic rubber net layer (3), wherein the elastic rubber net layer (3) is formed by a plurality of mesh bars arranged in an interlaced manner to form a plurality of mesh structures arranged in an array, wherein the mesh density of the mesh structure is 20-100 / cm 2 The elastic rubber mesh layer (3) is a TPE elastic rubber mesh layer, a PC elastic rubber mesh layer, an EVA elastic rubber mesh layer, an OBC elastic rubber mesh layer, a TPU elastic rubber mesh layer, a PP elastic rubber mesh layer, a PE elastic rubber mesh layer, a PU elastic rubber mesh layer, a PUR elastic rubber mesh layer, a TPE / POP elastic rubber mesh layer or an EVA / TPE / POP / OBC elastic rubber mesh layer.

[0075] The Shore hardness of the elastic rubber mesh layer (3) is 23-200A, and the tensile resilience of the elastic rubber mesh layer (3) is 90-97.5%.

[0076] The mesh structure is a square mesh, a rectangular mesh, a circular mesh, a diamond mesh, a hexagonal mesh, an elliptical mesh or a triangular mesh; the cross section of the mesh reinforcement is circular, elliptical, square or trapezoidal.

[0077] Example 2

[0078] The difference between this embodiment and the above-mentioned embodiment 1 is that:

[0079] The composite elastic adhesive mesh further comprises a first release layer (1), a first release adhesive layer (2), a second release adhesive layer (4) and a second release layer (5); the upper surface of the first release adhesive layer (2) is bonded to the lower surface of the first release adhesive layer (1); the lower surface of the first release adhesive layer (2) is bonded to the upper surface of the elastic adhesive mesh layer (3); the upper surface of the second release adhesive layer (4) is bonded to the lower surface of the elastic adhesive mesh layer (3); and the lower surface of the second release adhesive layer (4) is bonded to the upper surface of the second release layer (5).

[0080] The thickness of the elastic adhesive mesh layer (3) is 200-2500 μm, the thickness of the first release adhesive layer (2) and the second release adhesive layer (4) are both 80-120 μm, and the thickness of the first release layer (1) and the second release layer (5) are both 300-500 μm.

[0081] The elastic rubber mesh layer (3) has a gram weight of 300-450 g / m 2 The first release adhesive layer (2) and the second release adhesive layer (4) both have a gram weight of 400-1000 g / m 2 The first release layer (1) and the second release layer (5) both have a gram weight of 62-120 g / m 2 .

[0082] The release force between the first release adhesive layer (2) and the elastic adhesive mesh layer (3) and the release force between the second release adhesive layer (4) and the elastic adhesive mesh layer (3) are both 400-1000 gf; the first release adhesive layer (1) and the second release adhesive layer (5) are both single-silicon glassine release paper or double-silicon glassine release paper; the first release adhesive layer (2) and the second release adhesive layer (4) are both silicone pressure-sensitive adhesive layers, acrylic adhesive layers or polyurethane adhesive layers.

[0083] Example 3

[0084] The difference between this embodiment and the above-mentioned embodiment 2 is that:

[0085] The elastic rubber mesh layer (3) is a TPE / POP elastic rubber mesh layer, and the TPE / POP elastic rubber mesh layer is made of a TPE / POP composite material, and the TPE / POP composite material includes the following raw materials in parts by weight:

[0086]

[0087] The reinforcing agent A has a specific surface area of ​​140 m 2 / g of precipitated silica.

[0088] The cross-linking agent A is pentaerythritol.

[0089] The antistatic agent A is a mixture consisting of 2 parts of polyether ester amide, 0.5 parts of alkyl amino acid and 2.5 parts of polyethylene glycol methacrylic acid copolymer.

[0090] The vulcanizing agent A is a mixture consisting of 2 parts of 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, 1.0 parts of diisopropylbenzene peroxide and 1.2 parts of di-tert-butyl peroxide.

[0091] A method for preparing the composite elastic rubber net as described above comprises the following steps:

[0092] Step (1): melt-extrude the TPE / POP composite material to form a mesh, and then perform rotational molding and cooling to shape the mesh to obtain a mesh primary product;

[0093] Step (2): shaping and pulling the mesh primary product obtained in step (1) to obtain a TPE / POP elastic rubber mesh layer;

[0094] Step (3): taking the first release layer (1) and the second release layer (5) respectively, coating the surface of the first release layer (1) and the surface of the second release layer (5) with release adhesive respectively, and forming the first release adhesive layer (2) and the second release adhesive layer (4) after the first heat pressing, and respectively obtaining the first composite layer and the second composite layer;

[0095] Step (4): placing the TPE / POP elastic adhesive mesh layer obtained in step (2) on the surface of the first release adhesive layer (2) of the first composite layer, and then placing one side of the second release adhesive layer (4) of the second composite layer on the surface of the TPE / POP elastic adhesive mesh layer, and performing a second heat pressing to obtain a composite elastic adhesive mesh;

[0096] In the step (1), the temperature of the first zone of the melt extrusion of the TPE / POP composite material is 140°C, the temperature of the second zone is 145°C, the temperature of the third zone is 160°C, the temperature of the fourth zone is 150°C, and the temperature of the fifth zone is 140°C;

[0097] In the step (3), the pressure of the first heat pressing after coating the release adhesive is 1N / cm 2 , the hot pressing temperature is 120℃, and the hot pressing time is 15s;

[0098] In step (4), the pressure of the second heat pressing is 5N / cm 2 ,The hot pressing temperature is 165℃, and the hot pressing time is 45s.

[0099] A method for applying the composite elastic adhesive net prepared above to clothing fabrics comprises the following steps:

[0100] Step ①: tear off the first release layer (1) or the second release layer (5), laminate one side of the elastic rubber mesh layer (3) on the clothing fabric, and then tear off the remaining second release layer (5) or the first release layer (1) to obtain a laminated fabric;

[0101] Step ②: subjecting the laminated fabric of step ① to a heat pressing treatment to obtain a clothing fabric covered with an elastic rubber net.

[0102] In the step ②, the temperature of the hot pressing is 175° C., the pressure of the hot pressing is 4.5*101 KPa, and the time of the hot pressing is 35 s.

[0103] Example 4

[0104] The difference between this embodiment and the above-mentioned embodiment 2 is that:

[0105] The elastic rubber mesh layer (3) is a TPE / POP elastic rubber mesh layer, and the TPE / POP elastic rubber mesh layer is made of a TPE / POP composite material, and the TPE / POP composite material includes the following raw materials in parts by weight:

[0106]

[0107] The reinforcing agent A has a specific surface area of ​​155 m 2 / g of precipitated silica.

[0108] The crosslinking agent A is trimethylolpropane.

[0109] The antistatic agent A is a mixture consisting of 2.5 parts of polyether ester amide, 1 part of alkyl amino acid and 3.5 parts of polyethylene glycol methacrylic acid copolymer.

[0110] The vulcanizing agent A is a mixture consisting of 2.5 parts of 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, 1.3 parts of diisopropylbenzene peroxide and 1.6 parts of di-tert-butyl peroxide.

[0111] A method for preparing the composite elastic rubber net as described above comprises the following steps:

[0112] Step (1): melt-extrude the TPE / POP composite material to form a mesh, and then perform rotational molding and cooling to shape the mesh to obtain a mesh primary product;

[0113] Step (2): shaping and pulling the mesh primary product obtained in step (1) to obtain a TPE / POP elastic rubber mesh layer;

[0114] Step (3): taking the first release layer (1) and the second release layer (5) respectively, coating the surface of the first release layer (1) and the surface of the second release layer (5) with release adhesive respectively, and forming the first release adhesive layer (2) and the second release adhesive layer (4) after the first heat pressing, and respectively obtaining the first composite layer and the second composite layer;

[0115] Step (4): placing the TPE / POP elastic adhesive mesh layer obtained in step (2) on the surface of the first release adhesive layer (2) of the first composite layer, and then placing one side of the second release adhesive layer (4) of the second composite layer on the surface of the TPE / POP elastic adhesive mesh layer, and performing a second heat pressing to obtain a composite elastic adhesive mesh;

[0116] In the step (1), the temperature of the melt extrusion zone of the TPE / POP composite material is 145°C, the temperature of the zone 2 is 150°C, the temperature of the zone 3 is 165°C, the temperature of the zone 4 is 155°C, and the temperature of the zone 5 is 145°C;

[0117] In the step (3), the pressure of the first heat pressing after coating the release adhesive is 3N / cm 2 , the hot pressing temperature is 133℃, and the hot pressing time is 12s;

[0118] In step (4), the second heat pressing pressure is 18N / cm 2 , the hot pressing temperature is 175℃, and the hot pressing time is 30s.

[0119] A method for applying the composite elastic adhesive net prepared above to clothing fabrics comprises the following steps:

[0120] Step ①: tear off the first release layer (1) or the second release layer (5), laminate one side of the elastic rubber mesh layer (3) on the clothing fabric, and then tear off the remaining second release layer (5) or the first release layer (1) to obtain a laminated fabric;

[0121] Step ②: subjecting the laminated fabric of step ① to a heat pressing treatment to obtain a clothing fabric covered with an elastic rubber net.

[0122] In the step ②, the temperature of the hot pressing is 180° C., the pressure of the hot pressing is 5*101 KPa, and the time of the hot pressing is 30 s.

[0123] Example 5

[0124] The difference between this embodiment and the above-mentioned embodiment 2 is that:

[0125] The elastic rubber mesh layer (3) is a TPE / POP elastic rubber mesh layer, and the TPE / POP elastic rubber mesh layer is made of a TPE / POP composite material, and the TPE / POP composite material includes the following raw materials in parts by weight:

[0126]

[0127] The reinforcing agent A has a specific surface area of ​​170 m 2 / g of precipitated silica.

[0128] The crosslinking agent A is acetoacetoxyethyl methacrylate.

[0129] The antistatic agent A is a mixture consisting of 3 parts of polyether ester amide, 1.5 parts of alkyl amino acid and 4.5 parts of polyethylene glycol methacrylic acid copolymer.

[0130] The vulcanizing agent A is a mixture consisting of 3 parts of 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, 1.5 parts of diisopropylbenzene peroxide and 2.0 parts of di-tert-butyl peroxide.

[0131] A method for preparing the composite elastic rubber net as described above comprises the following steps:

[0132] Step (1): melt-extrude the TPE / POP composite material to form a mesh, and then perform rotational molding and cooling to shape the mesh to obtain a mesh primary product;

[0133] Step (2): shaping and pulling the mesh primary product obtained in step (1) to obtain a TPE / POP elastic rubber mesh layer;

[0134] Step (3): taking the first release layer (1) and the second release layer (5) respectively, coating the surface of the first release layer (1) and the surface of the second release layer (5) with release adhesive respectively, and forming the first release adhesive layer (2) and the second release adhesive layer (4) after the first heat pressing, and respectively obtaining the first composite layer and the second composite layer;

[0135] Step (4): placing the TPE / POP elastic adhesive mesh layer obtained in step (2) on the surface of the first release adhesive layer (2) of the first composite layer, and then placing one side of the second release adhesive layer (4) of the second composite layer on the surface of the TPE / POP elastic adhesive mesh layer (3), and performing a second heat pressing to obtain a composite elastic adhesive mesh;

[0136] In the step (1), the temperature of the first zone of the melt extrusion of the TPE / POP composite material is 150° C., the temperature of the second zone is 155° C., the temperature of the third zone is 170° C., the temperature of the fourth zone is 160° C., and the temperature of the fifth zone is 150° C.;

[0137] In the step (3), the pressure of the first heat pressing after coating the release adhesive is 5N / cm 2 , the hot pressing temperature is 145℃, and the hot pressing time is 8s;

[0138] In the step (4), the pressure of the second heat pressing is 30N / cm 2 , the hot pressing temperature is 185℃, and the hot pressing time is 15s.

[0139] A method for applying the composite elastic adhesive net prepared above to clothing fabrics comprises the following steps:

[0140] Step ①: tear off the first release layer (1) or the second release layer (5), laminate one side of the elastic rubber mesh layer (3) on the clothing fabric, and then tear off the remaining second release layer (5) or the first release layer (1) to obtain a laminated fabric;

[0141] Step ②: subjecting the laminated fabric of step ① to a heat pressing treatment to obtain a clothing fabric covered with an elastic rubber net.

[0142] In the step ②, the temperature of the hot pressing is 185° C., the pressure of the hot pressing is 5.5*101 KPa, and the time of the hot pressing is 25 s.

[0143] Example 6

[0144] The difference between this embodiment and the above-mentioned embodiment 2 is that:

[0145] The elastic rubber mesh layer (3) is an EVA / TPE / POP / OBC elastic rubber mesh layer, and the EVA / TPE / POP / OBC elastic rubber mesh layer (3) is made of an EVA / TPE / POP / OBC composite material, and the EVA / TPE / POP / OBC composite material comprises the following raw materials in parts by weight:

[0146]

[0147] The reinforcing agent B has a specific surface area of ​​140 m 2 / g of precipitated silica.

[0148] The cross-linking agent B is pentaerythritol.

[0149] The antistatic agent B is a mixture consisting of 2 parts of polyether ester amide, 0.5 parts of alkyl amino acid and 2.5 parts of polyethylene glycol methacrylic acid copolymer.

[0150] The vulcanizing agent B is a mixture consisting of 2 parts of 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, 1.0 parts of dicumyl peroxide and 1.2 parts of di-tert-butyl peroxide.

[0151] A method for preparing the composite elastic rubber net as described above comprises the following steps:

[0152] Step A: melt-extrude the EVA / TPE / POP / OBC composite material to form a mesh, and then sequentially perform rotational molding and cooling to shape the mesh to obtain a mesh primary product;

[0153] Step B: shaping and pulling the net-shaped primary product obtained in step A to obtain an EVA / TPE / POP / OBC elastic rubber net layer;

[0154] Step C: taking the first release layer (1) and the second release layer (5) respectively, coating the release adhesive on the surface of the first release layer (1) and the surface of the second release layer (5) respectively, and forming the first release adhesive layer (2) and the second release adhesive layer (4) after the first heat pressing, and respectively obtaining the first composite layer and the second composite layer;

[0155] Step D: The EVA / TPE / POP / OBC elastic adhesive mesh layer obtained in step B is placed on the surface of the first release adhesive layer (2) of the first composite layer, and then one side of the second release adhesive layer (4) of the second composite layer is placed on the surface of the EVA / TPE / POP / OBC elastic adhesive mesh layer, and a composite elastic adhesive mesh is obtained after a second heat pressing.

[0156] In the step A, the temperature of the melt extrusion zone of the EVA / TPE / POP / OBC composite material is 120°C, the temperature of the zone 2 is 125°C, the temperature of the zone 3 is 135°C, the temperature of the zone 4 is 130°C, and the temperature of the zone 5 is 120°C;

[0157] In the step C, the pressure of the first heat pressing after coating the release adhesive is 1N / cm 2 , the hot pressing temperature is 90℃, and the hot pressing time is 15s;

[0158] In step D, the second heat pressing pressure is 5N / cm 2 , the hot pressing temperature is 125℃, and the hot pressing time is 45s.

[0159] A method for applying the composite elastic adhesive net prepared above to clothing fabrics comprises the following steps:

[0160] Step ①: tear off the first release layer (1) or the second release layer (5), laminate one side of the elastic rubber mesh layer (3) on the clothing fabric, and then tear off the remaining second release layer (5) or the first release layer (1) to obtain a laminated fabric;

[0161] Step ②: subjecting the laminated fabric of step ① to a heat pressing treatment to obtain a clothing fabric covered with an elastic rubber net.

[0162] In the step ②, the temperature of the hot pressing is 175° C., the pressure of the hot pressing is 4.5*101 KPa, and the time of the hot pressing is 35 s.

[0163] Example 7

[0164] The difference between this embodiment and the above-mentioned embodiment 2 is that:

[0165] The elastic rubber mesh layer (3) is an EVA / TPE / POP / OBC elastic rubber mesh layer, and the EVA / TPE / POP / OBC elastic rubber mesh layer is made of an EVA / TPE / POP / OBC composite material, and the EVA / TPE / POP / OBC composite material includes the following raw materials in parts by weight:

[0166]

[0167]

[0168] The reinforcing agent B has a specific surface area of ​​155 m 2 / g of precipitated silica.

[0169] The crosslinking agent B is trimethylolpropane.

[0170] The antistatic agent B is a mixture consisting of 2.5 parts of polyether ester amide, 1 part of alkyl amino acid and 3.5 parts of polyethylene glycol methacrylic acid copolymer.

[0171] The vulcanizing agent B is a mixture consisting of 2.5 parts of 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, 1.3 parts of diisopropylbenzene peroxide and 1.6 parts of di-tert-butyl peroxide.

[0172] A method for preparing the composite elastic rubber net as described above comprises the following steps:

[0173] Step A: melt-extrude the EVA / TPE / POP / OBC composite material to form a mesh, and then sequentially perform rotational molding and cooling to shape the mesh to obtain a mesh primary product;

[0174] Step B: shaping and pulling the net-shaped primary product obtained in step A to obtain an EVA / TPE / POP / OBC elastic rubber net layer;

[0175] Step C: taking the first release layer (1) and the second release layer (5) respectively, coating the release adhesive on the surface of the first release layer (1) and the surface of the second release layer (5) respectively, and forming the first release adhesive layer (2) and the second release adhesive layer (4) after the first heat pressing, and respectively obtaining the first composite layer and the second composite layer;

[0176] Step D: The EVA / TPE / POP / OBC elastic adhesive mesh layer obtained in step B is placed on the surface of the first release adhesive layer (2) of the first composite layer, and then one side of the second release adhesive layer (4) of the second composite layer is placed on the surface of the EVA / TPE / POP / OBC elastic adhesive mesh layer, and a composite elastic adhesive mesh is obtained after a second heat pressing.

[0177] In the step A, the temperature of the melt extrusion zone of the EVA / TPE / POP / OBC composite material is 125°C, the temperature of the zone 2 is 130°C, the temperature of the zone 3 is 140°C, the temperature of the zone 4 is 135°C, and the temperature of the zone 5 is 125°C;

[0178] In step C, the pressure of the first heat pressing after coating the release adhesive is 3N / cm 2 , the hot pressing temperature is 102℃, and the hot pressing time is 12s;

[0179] In step D, the second heat pressing pressure is 18N / cm 2 , the hot pressing temperature is 135℃, and the hot pressing time is 30s.

[0180] A method for applying the composite elastic adhesive net prepared above to clothing fabrics comprises the following steps:

[0181] Step ①: tear off the first release layer (1) or the second release layer (5), laminate one side of the elastic rubber mesh layer (3) on the clothing fabric, and then tear off the remaining second release layer (5) or the first release layer (1) to obtain a laminated fabric;

[0182] Step ②: subjecting the laminated fabric of step ① to a heat pressing treatment to obtain a clothing fabric covered with an elastic rubber net.

[0183] In the step ②, the temperature of the hot pressing is 180° C., the pressure of the hot pressing is 5*101 KPa, and the time of the hot pressing is 30 s.

[0184] Example 8

[0185] The difference between this embodiment and the above-mentioned embodiment 2 is that:

[0186] The elastic rubber mesh layer (3) is an EVA / TPE / POP / OBC elastic rubber mesh layer, and the EVA / TPE / POP / OBC elastic rubber mesh layer is made of an EVA / TPE / POP / OBC composite material, and the EVA / TPE / POP / OBC composite material includes the following raw materials in parts by weight:

[0187]

[0188]

[0189] The reinforcing agent B has a specific surface area of ​​170 m 2 / g of precipitated silica.

[0190] The crosslinking agent B is acetoacetoxyethyl methacrylate.

[0191] The antistatic agent B is a mixture consisting of 3 parts of polyether ester amide, 1.5 parts of alkyl amino acid and 4.5 parts of polyethylene glycol methacrylic acid copolymer.

[0192] The vulcanizing agent B is a mixture consisting of 3 parts of 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, 1.5 parts of diisopropylbenzene peroxide and 2.0 parts of di-tert-butyl peroxide.

[0193] A method for preparing the composite elastic rubber net as described above comprises the following steps:

[0194] Step A: melt-extrude the EVA / TPE / POP / OBC composite material to form a mesh, and then sequentially perform rotational molding and cooling to shape the mesh to obtain a mesh primary product;

[0195] Step B: shaping and pulling the net-shaped primary product obtained in step A to obtain an EVA / TPE / POP / OBC elastic rubber net layer;

[0196] Step C: taking the first release layer (1) and the second release layer (5) respectively, coating the release adhesive on the surface of the first release layer (1) and the surface of the second release layer (5) respectively, and forming the first release adhesive layer (2) and the second release adhesive layer (4) after the first heat pressing, and respectively obtaining the first composite layer and the second composite layer;

[0197] Step D: The EVA / TPE / POP / OBC elastic adhesive mesh layer obtained in step B is placed on the surface of the first release adhesive layer (2) of the first composite layer, and then one side of the second release adhesive layer (4) of the second composite layer is placed on the surface of the EVA / TPE / POP / OBC elastic adhesive mesh layer, and a composite elastic adhesive mesh is obtained after a second heat pressing.

[0198] In the step A, the temperature of the melt extrusion zone of the EVA / TPE / POP / OBC composite material is 130°C, the temperature of the zone 2 is 135°C, the temperature of the zone 3 is 145°C, the temperature of the zone 4 is 140°C, and the temperature of the zone 5 is 130°C;

[0199] In step C, the first heat pressing pressure after coating the release adhesive is 5N / cm 2 , the hot pressing temperature is 115℃, and the hot pressing time is 8s;

[0200] In step D, the second heat pressing pressure is 30N / cm 2 ,The hot pressing temperature is 145℃, and the hot pressing time is 15s.

[0201] A method for applying the composite elastic adhesive net prepared above to clothing fabrics comprises the following steps:

[0202] Step ①: tear off the first release layer (1) or the second release layer (5), laminate one side of the elastic rubber mesh layer (3) on the clothing fabric, and then tear off the remaining second release layer (5) or the first release layer (1) to obtain a laminated fabric;

[0203] Step ②: subjecting the laminated fabric of step ① to a heat pressing treatment to obtain a clothing fabric covered with an elastic rubber net.

[0204] In the step ②, the temperature of the hot pressing is 185° C., the pressure of the hot pressing is 5.5*101 KPa, and the time of the hot pressing is 25 s.

[0205] Comparative Example 1

[0206] The difference between this comparative example 1 and the above-mentioned embodiment 4 is that:

[0207] The elastic rubber mesh layer (3) is a TPE / POP elastic rubber mesh layer, and the TPE / POP elastic rubber mesh layer is made of a TPE / POP composite material, and the TPE / POP composite material includes the following raw materials in parts by weight:

[0208]

[0209] The reinforcing agent A has a specific surface area of ​​155 m 2 / g of precipitated silica.

[0210] The crosslinking agent A is trimethylolpropane.

[0211] The antistatic agent A is a mixture consisting of 2.5 parts of polyether ester amide, 1 part of alkyl amino acid and 3.5 parts of polyethylene glycol methacrylic acid copolymer.

[0212] The vulcanizing agent A is a mixture consisting of 2.5 parts of 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, 1.3 parts of diisopropylbenzene peroxide and 1.6 parts of di-tert-butyl peroxide.

[0213] Comparative Example 2

[0214] The difference between this comparative example 2 and the above-mentioned embodiment 4 is that:

[0215] The elastic rubber mesh layer (3) is a TPE / POP elastic rubber mesh layer, and the TPE / POP elastic rubber mesh layer is made of a TPE / POP composite material, and the TPE / POP composite material includes the following raw materials in parts by weight:

[0216]

[0217] The reinforcing agent A has a specific surface area of ​​155 m 2 / g of fumed silica.

[0218] The crosslinking agent A is trimethylolpropane.

[0219] The antistatic agent A is a mixture consisting of 2.5 parts of polyether ester amide, 1 part of alkyl amino acid and 3.5 parts of polyethylene glycol methacrylic acid copolymer.

[0220] The vulcanizing agent A is a mixture consisting of 2.5 parts of 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, 1.3 parts of diisopropylbenzene peroxide and 1.6 parts of di-tert-butyl peroxide.

[0221] Comparative Example 3

[0222] The difference between this comparative example 3 and the above-mentioned embodiment 7 is that:

[0223] The elastic rubber mesh layer (3) is an EVA / TPE / POP / OBC elastic rubber mesh layer, and the EVA / TPE / POP / OBC elastic rubber mesh layer is made of an EVA / TPE / POP / OBC composite material, and the EVA / TPE / POP / OBC composite material includes the following raw materials in parts by weight:

[0224]

[0225] The reinforcing agent B has a specific surface area of ​​155 m 2 / g of precipitated silica.

[0226] The crosslinking agent B is trimethylolpropane.

[0227] The antistatic agent B is a mixture consisting of 2.5 parts of polyether ester amide, 1 part of alkyl amino acid and 3.5 parts of polyethylene glycol methacrylic acid copolymer.

[0228] The vulcanizing agent B is a mixture consisting of 2.5 parts of 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, 1.3 parts of diisopropylbenzene peroxide and 1.6 parts of di-tert-butyl peroxide.

[0229] Comparative Example 4

[0230] The difference between this comparative example 4 and the above-mentioned embodiment 7 is that:

[0231] The elastic rubber mesh layer (3) is an EVA / TPE / POP / OBC elastic rubber mesh layer, and the EVA / TPE / POP / OBC elastic rubber mesh layer is made of an EVA / TPE / POP / OBC composite material, and the EVA / TPE / POP / OBC composite material includes the following raw materials in parts by weight:

[0232]

[0233]

[0234] The reinforcing agent B has a specific surface area of ​​155 m 2 / g of fumed silica.

[0235] The crosslinking agent B is trimethylolpropane.

[0236] The antistatic agent B is a mixture consisting of 2.5 parts of polyether ester amide, 1 part of alkyl amino acid and 3.5 parts of polyethylene glycol methacrylic acid copolymer.

[0237] The vulcanizing agent B is a mixture consisting of 2.5 parts of 2,5-dimethyl-2,5-di-tert-butyl peroxyhexane, 1.3 parts of diisopropylbenzene peroxide and 1.6 parts of di-tert-butyl peroxide.

[0238] The elastic rubber mesh layer (3) prepared in the above-mentioned Examples 3-8 and Comparative Examples 1-4 was tested for mechanical and physical properties such as hardness, tensile strength, rebound rate, elongation at break, and tear strength. The test results are as follows:

[0239]

[0240]

[0241] It can be seen from the above data that the elastic rubber mesh layer (3) prepared by the present invention has high softness and resilience, and has better mechanical strength such as tensile strength, elongation at break, tear strength, high stability, does not break or deform after multiple washings, and has stable quality.

[0242] Compared with Example 4, terminal hydroxyl polydimethylsiloxane is not used in the TPE / POP elastic rubber mesh layer of Comparative Example 1; similarly, compared with Example 7, terminal hydroxyl polydimethylsiloxane is not used in the EVA / TPE / POP / OBC elastic rubber mesh layer of Comparative Example 3; the elastic rubber mesh layer (3) prepared in Comparative Examples 1 and 3 has significantly lower tensile strength, elongation at break, tear strength and other properties, and significantly lower rebound rate, indicating that the present invention can avoid structural phenomena such as hardening, low plasticity, and reduced processing performance of the composite material of the elastic rubber mesh during storage and placement by using terminal hydroxyl polydimethylsiloxane, and can effectively improve the comprehensive properties of the elastic rubber mesh, such as softness, tensile resilience, tensile strength, elongation at break, and tear strength.

[0243] Compared with Example 4, the reinforcing agent A in the TPE / POP elastic rubber mesh layer of Comparative Example 2 is fumed silica; similarly, compared with Example 7, the reinforcing agent B in the EVA / TPE / POP / OBC elastic rubber mesh layer of Comparative Example 3 is fumed silica; compared with the elastic rubber mesh layer (3) prepared by the present invention using precipitated silica, the elastic rubber mesh layer (3) prepared by Comparative Examples 1 and 3 has no significant change in hardness, but has a significantly lower rebound rate, and the tensile strength, elongation at break, tear strength and other properties are significantly lower, indicating that the elastic rubber mesh layer (3) has a lower rebound resilience when fumed silica is used as a reinforcing agent; and the present invention significantly improves the rebound resilience of the elastic rubber mesh layer (3) by using precipitated silica with a specific surface area of ​​150-170 m2 / g as a reinforcing agent, and has a good recovery effect after stretching.

[0244] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the protection scope of the present invention.

Claims

1. A composite elastic rubber mesh, characterized in that: The composite elastic rubber net comprises an elastic rubber net layer, wherein the elastic rubber net layer is formed by staggered arrangement of a plurality of mesh bars to form a plurality of mesh structures arranged in an array, and the mesh density of the mesh structure is 20-100 / cm 2 , the elastic rubber mesh layer is a TPE / POP elastic rubber mesh layer or an EVA / TPE / POP / OBC elastic rubber mesh layer; The TPE / POP elastic rubber mesh layer is made of a TPE / POP composite material, and the TPE / POP composite material includes the following raw materials in parts by weight: 80-85 parts of styrene-butadiene-styrene block copolymer Polyolefin plastomer 15-20 parts 1.5-2.5 parts of hydroxyl-terminated polydimethylsiloxane Enhancer A5-8 parts Crosslinking agent A2-3 parts Antistatic agent A1.0-1.5 parts Curing agent A 0.6-1.0 part; The EVA / TPE / POP / OBC elastic rubber mesh layer is made of an EVA / TPE / POP / OBC composite material; the EVA / TPE / POP / OBC composite material comprises the following raw materials in parts by weight: 40-60 parts of vinyl acetate-ethylene copolymer Styrene-butadiene-styrene block copolymer 25-35 parts Polyolefin plastomer 5-10 parts Polyolefin block copolymer 10-15 parts 2-3 parts of hydroxy-terminated polydimethylsiloxane Enhancer B8-10 parts Crosslinking agent B4-6 parts Antistatic agent B 1.0-1.5 parts Curing agent B 0.5-1.5 parts; The reinforcing agent A and reinforcing agent B have a specific surface area of ​​140-170m 2 / g of precipitated silica; the crosslinking agent A and the crosslinking agent B are at least one of pentaerythritol, trimethylolpropane and acetoacetoxyethyl methacrylate.

2. The composite elastic rubber net according to claim 1, characterized in that: The Shore hardness of the elastic rubber mesh layer is 23-200A, and the tensile resilience of the elastic rubber mesh layer is 90-97.5%.

3. The composite elastic rubber net according to claim 1, characterized in that: The composite elastic adhesive net also includes a first release layer, a first release adhesive layer, a second release adhesive layer and a second release layer, wherein the upper surface of the first release adhesive layer is bonded to the lower surface of the first release layer, the lower surface of the first release adhesive layer is bonded to the upper surface of the elastic adhesive net layer, the upper surface of the second release adhesive layer is bonded to the lower surface of the elastic adhesive net layer, and the lower surface of the second release adhesive layer is bonded to the upper surface of the second release layer.

4. The composite elastic rubber net according to claim 3, characterized in that: The release force between the first release adhesive layer and the elastic adhesive mesh layer and the release force between the second release adhesive layer and the elastic adhesive mesh layer are both 400-1000gf; the first release layer and the second release layer are both single-silicone glassine release paper or double-silicone glassine release paper; the first release adhesive layer and the second release adhesive layer are both one of silicone pressure-sensitive adhesive, acrylic adhesive, and polyurethane adhesive.

5. A method for preparing the composite elastic rubber net according to claim 1, characterized in that: The steps include: Step (1): melt-extrude the TPE / POP composite material to form a mesh, and then perform rotational molding and cooling to shape the mesh to obtain a mesh primary product; Step (2): shaping and pulling the mesh primary product obtained in step (1) to obtain a TPE / POP elastic rubber mesh layer; Step (3): taking the first release layer and the second release layer respectively, coating the release adhesive on the surface of the first release layer and the surface of the second release layer respectively, forming the first release adhesive layer and the second release adhesive layer after a first heat pressing, and respectively preparing the first composite layer and the second composite layer; Step (4): The TPE / POP elastic adhesive mesh layer obtained in step (2) is placed on the surface of the first release adhesive layer of the first composite layer, and then one side of the second release adhesive layer of the second composite layer is placed on the surface of the elastic adhesive mesh layer. After a second heat pressing, a composite elastic adhesive mesh is obtained.

6. The method for preparing a composite elastic rubber net according to claim 5, characterized in that: In the step (1), the temperature of the first zone of the melt extrusion of the TPE / POP composite material is 140-150°C, the temperature of the second zone is 145-155°C, the temperature of the third zone is 160-170°C, the temperature of the fourth zone is 150-160°C, and the temperature of the fifth zone is 140-150°C; in the step (3), the pressure of the first hot pressing after coating the release adhesive is 1-5N / cm2, the hot pressing temperature is 120-145°C, and the hot pressing time is 8-15s; in the step (4), the pressure of the second hot pressing is 5-30N / cm2, the hot pressing temperature is 165-185°C, and the hot pressing time is 15-45s.

7. A method for preparing the composite elastic rubber net according to claim 1, characterized in that: The steps include: Step A: melt-extrude the EVA / TPE / POP / OBC composite material to form a mesh, and then sequentially rotationally mold and cool the mesh to obtain a mesh primary product; Step B: shaping and pulling the net-shaped primary product obtained in step A to obtain an EVA / TPE / POP / OBC elastic rubber net layer; Step C: taking the first release layer and the second release layer respectively, coating the release adhesive on the surface of the first release layer and the surface of the second release layer respectively, forming the first release adhesive layer and the second release adhesive layer after the first heat pressing, and respectively preparing the first composite layer and the second composite layer; Step D: Cover the EVA / TPE / POP / OBC elastic adhesive mesh layer obtained in step B on the surface of the first release adhesive layer of the first composite layer, and then cover one side of the second release adhesive layer of the second composite layer on the surface of the elastic adhesive mesh layer, and obtain a composite elastic adhesive mesh after a second heat pressing.

8. The method for preparing a composite elastic rubber net according to claim 7, characterized in that: In the step A, the temperature of the first zone of the melt extrusion of the EVA / TPE / POP / OBC composite material is 120-130°C, the temperature of the second zone is 125-135°C, the temperature of the third zone is 135-145°C, the temperature of the fourth zone is 130-140°C, and the temperature of the fifth zone is 120-130°C; in the step C, the pressure of the first hot pressing after coating the release adhesive is 1-5N / cm2, the hot pressing temperature is 90-115°C, and the hot pressing time is 8-15s; in the step D, the pressure of the second hot pressing is 5-30N / cm2, the hot pressing temperature is 125-145°C, and the hot pressing time is 15-45s.

Images