WO2021022481A1 - 一种发泡中胎及贴皮球与制作方法 - Google Patents

一种发泡中胎及贴皮球与制作方法 Download PDF

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Publication number
WO2021022481A1
WO2021022481A1 PCT/CN2019/099461 CN2019099461W WO2021022481A1 WO 2021022481 A1 WO2021022481 A1 WO 2021022481A1 CN 2019099461 W CN2019099461 W CN 2019099461W WO 2021022481 A1 WO2021022481 A1 WO 2021022481A1
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Prior art keywords
layer
foam
foamed
liner
inner liner
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PCT/CN2019/099461
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English (en)
French (fr)
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陈红维
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陈红维
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Publication of WO2021022481A1 publication Critical patent/WO2021022481A1/zh

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B41/00—Hollow inflatable balls
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B41/00—Hollow inflatable balls
    • A63B41/02—Bladders
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B41/00—Hollow inflatable balls
    • A63B41/02—Bladders
    • A63B41/04—Closures therefor
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B45/00—Apparatus or methods for manufacturing balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2243/00—Specific ball sports not provided for in A63B2102/00 - A63B2102/38
    • A63B2243/0025—Football
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2243/00—Specific ball sports not provided for in A63B2102/00 - A63B2102/38
    • A63B2243/0037—Basketball
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2243/00—Specific ball sports not provided for in A63B2102/00 - A63B2102/38
    • A63B2243/0095—Volleyball

Definitions

  • the invention relates to the field of ball products, in particular to a foamed middle tire and a leather-covered ball and a manufacturing method, and in particular to a foamed middle tire and a leather-covered ball without vulcanization and sanding and a manufacturing method.
  • Ball games as a major category of sports, are also increasingly popular, including basketball, football, volleyball, and rugby. And so on, especially basketball and football are becoming more and more popular in school students' sports, and corresponding teaching courses have been set up. In order to improve the user experience and give better play to the technical level of the athletes, a variety of new ball products have also appeared.
  • the structure of a traditional patch basketball generally includes from the outside to the inside: outer skin, middle tire (normal rubber or foam rubber) layer, yarn and inner liner; the inner liner is mainly used for inflating and providing elasticity; Winding yarn on the outer surface of the inner liner can better fix the circumference of the inner liner and prevent its deformation.
  • the middle tire (ordinary rubber or foam rubber) layer can easily divide the outer skin layer area, and the outer skin can improve the grip and control feel.
  • the traditional foamed tire (foamed rubber) layer is made by laminating a foamed rubber material on the yarn layer and vulcanizing, during the vulcanization process, the foamed rubber tire layer and the yarn layer penetrate each other to produce
  • the foamed middle tire is soft and hard inside, making the structure in the prior art such that the ball is harder when the player controls the ball in the process of playing basketball.
  • the grip and resilience (harder) directly affect the game technique Play, the structure of traditional basketball determines that the ball cannot be softer and better grasped, thus affecting the play of basketball skills.
  • the patent document CN201807148U discloses a basketball, including an outer skin, a middle tire outer skin, yarn and an inner liner.
  • the yarn is arranged between the inner surface of the middle tire outer skin and the outer surface of the inner liner, and also includes a foam elastic
  • the foam elastic layer is arranged between the outer surface of the outer skin of the middle tire and the inner surface of the outer skin.
  • CN 208877847U discloses a patch basketball, which comprises an inner liner, a yarn wrapping layer, a middle tire layer (the material of the middle tire layer is foamed rubber), a foam layer and a skin which are sequentially arranged from the inside to the outside; The material is cotton.
  • This solution also designs a foaming layer between the middle tire layer and the skin, and uses a cotton skin.
  • CN 208626560U discloses a new type of sewing structure basketball, which includes an outer skin, a middle tire, and a foam elastic layer.
  • the outer skin is printed with a stem line, and the stem line is provided with sewing marks, and the outer skin is provided with a foam elastic layer and a middle tire.
  • the above-mentioned 3 patent comparison documents are all based on the middle tire layer (it should be noted here that, in general, in the prior art, the middle tire is composed of inner tube + yarn layer + middle tire skin layer, which is involved in the present invention.
  • the middle tire layer in the prior art essentially refers to the middle tire outer skin layer) and the outer skin is provided with a foam elastic layer/foam layer to solve the problems of hard sphere, insufficient grip and insufficient elasticity, but the sphere is still With middle tire layer.
  • the traditional middle tire layer in the prior art is made of rubber or foamed rubber after vulcanization in the mold, generally the surface of the rubber after vulcanization has rubber oil penetrated into the surface, and the surface needs to be polished before it can be used, otherwise the glue cannot be used.
  • the tire surface is firmly bonded in the vulcanized rubber. And during the rubber vulcanization process, it will penetrate into the yarn or cloth layer, affecting the original flexibility and elasticity of the yarn or cloth.
  • rubber products need to be vulcanized to increase the elasticity and strength of the rubber, and it is more wear-resistant.
  • CN 109453499 A discloses a basketball and its manufacturing process, in which the basketball includes a rubber liner, a yarn layer, a middle tire layer and a skin from the inside to the outside.
  • the raw materials of the middle tire layer and the outer skin include the following components by weight :Natural rubber 30-35 parts; butadiene rubber 10-20 parts; zinc oxide 2.2-2.6 parts; stearic acid 0.4-0.8 parts; activated calcium carbonate 20-30 parts; white carbon black 2-8 parts; naphthenic oil 0.6-1.2 parts; accelerator DM1-1.5 parts; accelerator TT 0.1-0.3 parts; sulfur 1-1.5 parts; phenolic resin 1-5.
  • the main raw material of the middle tire layer is natural rubber, and the main raw material of the middle tire layer in the prior art is also rubber.
  • the corresponding manufacturing process of the basketball disclosed in the reference document includes the following steps: step one, winding a layer of yarn on the surface of the basketball liner to form a yarn layer; step two, using the raw material of the middle tread The surface of the layer is pasted with a mid tread to form a mid tread; step three, the raw material of the mid tread is used to prepare an outer skin, and the outer skin is pasted on the surface of the mid tread to obtain a basketball blank; step four, the basketball blank is placed in a spherical mold and closed The spherical mold is put into the vulcanization equipment for vulcanization; step 5, the vulcanized sphere is refurbished and the ball line is pasted to obtain a basketball.
  • CN 104960213B, CN 104524748B disclosed the production process of the rubber ball, which requires the rubber raw material tire/rubber raw material to kick the ball for vulcanization to obtain a vulcanized tire/vulcanized rubber ball, and then use a grinder to polish to remove the vulcanized tire The oil on the outer surface. Therefore, vulcanization is an indispensable step to use rubber as a raw material to prepare the leather ball, which is mainly used for the tire and outer skin of the leather ball.
  • the weight of the finished volleyball is required to be 260 grams to 280 grams, so the weight of the middle tire is much lower than this weight, generally 180 grams to 190 grams.
  • the middle tire made by coating raw rubber material on the inner liner and then vulcanizing it in the prior art has a heavier weight due to the characteristics of the rubber material itself. It is necessary to reduce the weight of the inner liner, yarn and rubber layer to meet the weight of volleyball. It is required that if the rubber layer uses a foamed rubber material, in order to meet the weight requirement, only a very thin rubber material can be used, and the rubber material is too thin to reflect the flexibility of the foam. Therefore, the foamed middle tire made by the prior art can basically only be used in the production of basketball, but cannot be used in the production of volleyball middle tires.
  • the present invention intends to provide a vulcanization-free and sand-free foaming tyre solution, and at the same time, it can also solve the problem of low-weight balls such as volleyballs.
  • the production of foam tires is not limited to foam tires.
  • the technical problem to be solved by the present invention is to provide a foamed middle tire and leather ball and a manufacturing method.
  • the foamed middle tire uses a lighter foam layer to replace the heavier vulcanized rubber middle tire layer, which can eliminate the vulcanization process in the process of making the rubber raw tire into the vulcanized rubber middle tire, and also eliminates the need for the vulcanized rubber after vulcanization.
  • the surface polishing process of the middle tire for the middle tire of the same weight, the inner liner can be heavier, and for the inner liner of the same material, the thickness of the inner liner can be thickened, thereby improving the air tightness of the inner liner; it can also make the foaming middle tire applicable For lighter volleyball, it can meet the requirements of complex structure inner tank and has a wider application range.
  • the present invention adopts the following technical solutions:
  • a foamed middle tire comprising an inner liner, an anti-inner liner deformation layer and a foam layer.
  • the anti-inner liner deformation layer wraps on the outer surface of the inner liner, and the foam layer is covered and arranged outside the anti-inner liner deformation layer surface.
  • an anti-inner liner deformation layer is provided on the outer surface of the inner liner.
  • the anti-inner liner deformation layer includes but is not limited to a yarn layer , One of the first patch layers.
  • the anti-deformation layer of the liner is a composite layer composed of a yarn layer and a paste or latex, or A composite layer composed of a patch layer and a paste or latex.
  • the yarn layer, patch layer or other fabric layer can be more compact, firm, and capable Better prevent deformation of the inner tank.
  • the foam involved in the solution of the present invention refers to a material in which plastic particles have been foamed, referred to as foam.
  • Foam has a series of characteristics such as elasticity, light weight, fast pressure-sensitive fixation, convenient use, free bending, ultra-thin volume, and reliable performance.
  • the material of the foam layer adopts PU (polyurethane) foam, EPE (polyethylene) foam (also known as pearl cotton), PORON foam (a high-density polyurethane foam of the PORON brand) , CR foam (a general-purpose special rubber), EVA (ethylene-vinyl acetate copolymer) foam, PE foam, SBR foam, EPDM (Ethylene-Propylene-Diene Monomer) foam , EPE (Expanded Polypropylene) foam.
  • PU polyurethane
  • EPE polyethylene foam
  • PORON foam a high-density polyurethane foam of the PORON brand
  • CR foam a general-purpose special rubber
  • EVA ethylene-vinyl acetate copolymer
  • PE foam SBR foam
  • EPDM Ethylene-Propylene-Diene Monomer
  • EPE Exanded Polypropylene
  • the inner bladder is a thickened inner bladder, and the thickness of the inner bladder is increased under the premise of ensuring the weight requirements of different types of foamed middle tires. thick.
  • the thickness of the liner in the present invention refers to the thickness of the outer skin layer of the liner forming the liner.
  • the lightweight foam is used to replace the heavier foam rubber middle layer, for the middle tire of the same quality, the weight of the inner liner in the middle tire can be increased.
  • the thickness of the inner liner can be thickened, thereby improving the air tightness of the inner liner.
  • the weight of a basketball is 600-650g
  • the weight of the general middle tire is 450-500g
  • the weight of the foam layer is generally set at 15-75g (specific weight According to different materials and actual needs), it means that 350 grams to 470 grams of inner tank can be used.
  • the foamed rubber tire layer (the outer skin layer of the foamed rubber tire) is about 200g
  • the inner liner is also about 200g.
  • the 350-470g liner used in the present invention is nearly twice as thick as the traditional liner of about 200g, and the airtight performance of the liner is more than doubled.
  • the middle tire retains air Time has more than doubled.
  • the weight of the foam layer is 15-60g; the weight of the inner liner is 350-450g.
  • the general foam rubber middle tire layer is about 200g, and the inner liner is about 200g.
  • the thickness of the inner liner of about 200g is about 0.7mm.
  • the thickness of the inner liner of 350-450 grams can be 1.2-1.6mm, so that the inner liner can be thickened.
  • the thickness of the inner liner can be thickened by about twice, so as to realize the thickening of the inner liner and improve the air tightness of the inner liner.
  • the weight of the foam layer accounts for the lighter weight of the entire foamed tire, and the specific weight ratio is 3% to 15% of the total weight of the tire.
  • the weight of the foamed middle tire layer accounts for about 50% of the entire foamed middle tire.
  • the foamed tire of the present invention can meet the weight requirement of volleyball.
  • the weight of the finished volleyball is generally required to be 260 grams to 280 grams, and the weight of the middle tire is much lower than this weight.
  • the weight of the middle volleyball tire is required to be controlled within the volleyball used in the middle tire.
  • the weight of the gall is 80 to 90 grams.
  • a middle tire made of foam rubber is difficult to meet this weight requirement in order to achieve the flexibility (not too thin) of the foam rubber.
  • a lightweight foam layer is used instead of the existing tire.
  • There is a technical rubber foamed tire layer that can reduce the quality of the entire tire, so that it can be used in volleyball.
  • the inner liner can be appropriately thickened under the premise of ensuring the weight of the volleyball.
  • the volleyball foamed middle tire with the structure of the present invention uses a liner of about 90-115g, and the thickness of the volleyball liner of the same material can be increased by 10-30%. Therefore, the middle tire provided by the solution of the present invention can not only meet the weight requirement of volleyball, but also can thicken the volleyball inner liner and improve the air tightness of the inner liner.
  • the foamed middle tire further includes a stem line, and the stem line is attached to the outer surface of the foam layer.
  • the stem line is first attached to the tire and then attached to the outer skin; or the outer skin is attached first and then the stem line is attached; Or printed on the outer surface of the finished ball.
  • the outer surface of the foam layer is further provided with a second patch layer, and the second patch layer is provided to cover the outer surface of the foam layer as a whole or only at the place where the stem line is attached.
  • the second patch layer in the present invention can protect the foam layer.
  • the material of the second patch layer in the present invention also includes but is not limited to other fabric layers such as patch.
  • the material of the stem thread is a synthetic material, including but not limited to one of synthetic PVC, PU, and fiber materials.
  • the stem thread in the present invention is made of synthetic PVC, PU, fiber and other synthetic materials, which are not easy to age and crack when exposed to sunlight, are more wear-resistant during use, and have a longer service life.
  • the paste is a rubber material.
  • the paste in this scheme is applied on the yarn layer, patch layer or other fabric layer, it penetrates into the yarn layer, patch layer or other fabric layer, and after drying and solidification, the yarn layer can become tighter. Result and firmness, in order to better prevent the inner tank from deforming.
  • the amount of coating is controlled so that the fabric can be seen, and the proportion of paste is controlled within 20% of the weight of the entire foamed tire without vulcanization.
  • the rubber materials in this scheme include but are not limited to natural rubber (NR), styrene butadiene rubber (SBR), butadiene rubber (BR), isoprene rubber (IR), chloroprene rubber (CR), butyl rubber (IIR) , Nitrile rubber (NBR), ethylene propylene rubber (EPM/EPDM), silicone rubber (Q), fluoro rubber (FPM), polyurethane rubber (AU/EU), acrylic rubber (ACM/AEM), chlorosulfonated poly Ethylene rubber (CSM), chloroether rubber (CO/ECO), or a rubber mixture composed of the above rubber as the main component and functional additives.
  • NR natural rubber
  • SBR styrene butadiene rubber
  • BR butadiene rubber
  • IR isoprene rubber
  • CR chloroprene rubber
  • IIR butyl rubber
  • NBR Nitrile rubber
  • EPM/EPDM ethylene propylene rubber
  • silicone rubber Q
  • the foamed middle tire also includes implanted electronic devices.
  • electronic devices In order to increase the intelligent function and entertainment of the ball, electronic devices will be implanted in the ball. These electronic devices include, but are not limited to, chips, various sensors, and other small or micro electronic devices that implement ball intelligent application functions, such as displacement sensors to record the ball's movement trajectory.
  • the electronic device is arranged in the liner material, or between the liner deformation prevention layer and the liner layer, or between the liner deformation prevention layer and the foam layer; or the liner is An inner liner with a cavity, and the electronic device is arranged in the cavity.
  • electronic devices are implanted in the liner material during the process of making the liner, or between the anti-deformation layer and the inner liner layer, or implanted in the anti-deformation layer and foam Between layers; or design a liner with a cavity, and set the electronic device in the cavity.
  • the surface of the foam layer is provided with a plurality of dividing lines or grooves.
  • the dividing lines or grooves divide the outer surface of the foam layer of the middle tire into a number of sections according to the ball specifications.
  • the division of the sections can be based on Divide in the form of area or equal circumference or equal width or irregular sheet shape, and at the same time, the dividing lines or grooves communicate with each other on the outer surface of the entire middle tire; the foamed middle tire also includes stem lines and stem line stickers. Set at the dividing line or groove.
  • the dividing lines or grooves are formed by pressing or thinning, or the dividing lines or grooves are pressed in the bonding mold or the shaping mold, and then the areas divided by the dividing lines or grooves are pasted Outer skin or stem line.
  • the present invention also provides a leather-applied ball, comprising the above-mentioned foamed middle tire and an outer skin, and the outer skin is attached to the outer surface of the foamed inner tire.
  • pasted ball includes but is not limited to basketball, volleyball, rugby, and football.
  • the present invention also provides a method for manufacturing a foamed middle tire, which specifically includes the following steps:
  • a layer of anti-liner deformation layer is provided on the outer surface of the liner, and the anti-liner deformation layer is specifically formed by winding yarn to form a yarn layer, or attaching a first patch to form a first patch layer;
  • step (1) the inner liner deformation prevention layer is specifically prepared by the following method:
  • first paste the first patch on the outer surface of the inner liner and then apply a layer of paste or latex on the surface of the first patch layer to obtain a composite layer that prevents deformation of the inner liner.
  • step (2) the weight of the foam layer is controlled to be 3% to 15% of the total weight of the tire.
  • step (1) also includes making a thickened inner liner, and the thickness of the inner liner is thickened on the premise of ensuring the weight requirements of the foamed tires of different types of leather balls.
  • the above-mentioned manufacturing method further includes step (3), attaching a patch on the entire outer surface of the foam layer or attaching a second patch on the place where the stem line is attached to form a second patch layer, and then apply the second patch on the second patch.
  • a stalk line is pasted on the patch layer.
  • the foamed tire with the structure of the present invention is directly attached to the inner liner deformation layer (yarn layer or patch layer or its composite layer). Without the restriction of the foam rubber layer in the middle, the sphere has better bounce and softness; and the surface of the anti-liner deformation layer is pasted with foam, which can maintain the original flexibility of the yarn or patch and foam. The touch is softer and more comfortable.
  • the foamed tire made by the prior art is made by bonding foam rubber material to yarn or patch, and then vulcanizing it in a vulcanizing mold, because the rubber must be vulcanized in order to produce a foaming effect.
  • the layer and the yarn layer or the patch layer penetrate each other, and the produced foamed middle tire is soft outside and hard inside, and the feeling of tapping and touching is obviously harder than the middle tire of the present invention.
  • the foam layer is used to replace the foam rubber middle tire layer, which can save the vulcanization process in the production process of the foam rubber middle tire, and at the same time avoid the high defects and uneven foaming during the vulcanization process. Moreover, since the foaming pores of the foam itself are conducive to the penetration and adhesion of glue, the polishing step can also be avoided.
  • the foamed tires made by the prior art require high technical conditions, and generally have a 10%-25% non-conformity.
  • Good product once the raw material is unstable or there is a little deviation in the process of punching or the temperature deviation of the vulcanization mold, it will cause uneven foaming or can not afford to foam, and the vulcanization touch will be irreversible, resulting in defective products, so the market price is high and capable
  • the number of manufacturers is limited and the market share is relatively low.
  • the foam layer can be attached to the foamed foam layer, no defective products are produced, and the cost is low, which is beneficial to market applications.
  • the foamed middle tire of the present invention is laminated with foam and foam on the inner liner deformation prevention layer (yarn layer or cloth layer or its conforming layer) during the production process.
  • Cotton has a light specific gravity, so under the same weight of the middle tire, it can increase the inner bladder layer, and the heavier inner bladder has higher air tightness.
  • the prior art generally uses a liner of about 200 grams, and the weight of the rubber foamed tire layer will also be about 200 grams (the rubber foamed tire layer will account for 50% of the total weight of the entire tire. About), and the weight of the foam layer used in the present invention is 15 grams to 60 grams (the weight of the foam layer will only account for 3 to 15% of the total mass of the tire), so it can be used up to 350
  • the inner tank of gram ⁇ 450 grams can increase the weight of the inner tank.
  • the inner tank of 350 g ⁇ 450 g will have a thicker thickness than about 200 grams (the thickness of the same material is about double ), the air tightness of the inner liner is more than doubled, and the air retention time of the middle tire is more than doubled.
  • the middle tire provided by the present invention can also be used for volleyball, using the inner liner for ordinary volleyball middle tires, plus yarn Layer or patch layer, just stick to the foam layer.
  • the weight of the finished volleyball is required to be 260 grams to 280 grams, and the weight of the middle tire is much lower than this weight. It is difficult for the middle tire made of foam rubber in the prior art to meet this weight requirement.
  • the solution of the present invention can control the weight of the finished volleyball within the quality requirement range; meanwhile, it can also realize the thickening of the volleyball liner and improve the air tightness of the liner.
  • the volleyball made by adopting the foamed tire of the present invention has a more comfortable feel.
  • the foamed middle tire of the present invention can increase and thicken the inner liner on the original basis, which is more conducive to implanting electronic devices, and has a more complex structure designed to accommodate and protect electronic devices. It exerts better performance and can also broaden the application range of finished balls.
  • Figure 1 is a schematic diagram of the structure of the foamed tire of the present invention.
  • Figure 2 is a schematic diagram of the appearance and structure of a basketball using the foamed tire of the present invention
  • the terms “connected”, “fixed”, etc. should be understood in a broad sense, for example, “fixed” can be a fixed connection, a detachable connection, or a whole; It can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components or the interaction relationship between two components, unless specifically defined otherwise.
  • “fixed” can be a fixed connection, a detachable connection, or a whole; It can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components or the interaction relationship between two components, unless specifically defined otherwise.
  • fixed can be a fixed connection, a detachable connection, or a whole; It can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components or the interaction relationship between two components, unless specifically defined otherwise.
  • this embodiment provides a foamed tire, including an inner liner 1, an anti-inner liner deformation layer 2, and a foam layer 3.
  • the anti-inner liner deformation layer 2 is wrapped around the outer surface of the inner liner 1.
  • the layer 3 covers the outer surface of the inner liner deformation prevention layer 2.
  • the inner liner deformation preventing layer 2 is a yarn layer or a first patch layer.
  • the yarn layer or the first patch layer is arranged on the outer surface of the inner liner, which can fix the circumference of the inner liner, prevent unlimited expansion of the inner liner during inflation, and prevent the inner liner from deforming.
  • the material of the inner liner deformation prevention layer is not limited to yarn or patch, and other fabric layers that prevent the inner liner deformation are also within the protection scope of this solution.
  • a layer of anti-deformation layer 2 is provided on the outer surface of the liner 1.
  • the anti-deformation layer 2 is specifically formed by winding a layer of yarn to form a yarn layer, or attaching a first patch to form a first patch Floor;
  • the material of the foam layer adopts PU foam, EPE foam, PORON foam, CR foam, EVA foam, PE foam, SBR foam, EPDM foam, EPE foam according to actual needs. One of them.
  • the liner deformation preventing layer 2 adopts a composite layer composed of a yarn layer and a paste or latex, or a composite layer composed of a first patch layer and a paste or latex.
  • the liner deformation preventing layer 2 of this embodiment is also not limited to the yarn layer or patch layer, and other composite layers composed of fabric layers and paste or rubber that prevent liner deformation are also within the protection scope of this solution.
  • a layer of anti-deformation layer 2 is provided on the outer surface of the inner liner 1, and the anti-deformation layer 2 is specifically made by the following method: first wind a layer of yarn on the outer surface of the inner liner or paste a layer of sticker Then apply a layer of paste or latex on the surface of the yarn layer/applied layer to obtain a composite layer that prevents deformation of the liner.
  • the material of the foam layer adopts PU foam, EPE foam, PORON foam, CR foam, EVA foam, PE foam, SBR foam, EPDM foam according to actual needs.
  • Cotton a kind of EPE foam.
  • the paste is a rubber material. Since the paste here is coated on the yarn layer, patch layer or other fabric layer, it penetrates into the yarn layer, patch layer or other fabric layer, and can be dried and solidified. Make the yarn layer more compact and firm, and can better prevent the inner tank from deforming. Generally, the coating amount is controlled so that the fabric can be seen, and the paste ratio is controlled within 20% of the entire foamed tire weight without vulcanization.
  • the rubber material adopts natural rubber, styrene butadiene rubber, butadiene rubber, isoprene rubber, neoprene rubber, butyl rubber, nitrile rubber, ethylene propylene rubber, silicone rubber, fluoro rubber, and polyurethane rubber according to actual needs. , Acrylic rubber, chlorosulfonated polyethylene rubber, chloroether rubber, or a rubber mixture composed of the above rubber as the main component and functional additives.
  • the foamed middle tyre provided in this embodiment uses a thickened inner liner 1 and the thickness of the inner liner 1 Thickening is carried out under the premise of ensuring the weight requirements of different types of foamed tires.
  • an inner liner about twice the thickness of traditional foamed rubber tires is used.
  • the thickness of the liner 1 in the present invention refers to the thickness of the liner layer forming the liner.
  • the weight of the foam layer 3 is set to 3% to 15% of the total weight of the tire.
  • the weight of a basketball is 600-650g
  • the weight of a middle tire is generally 450-500g.
  • the weight of the foam layer is generally set at 15-75g, then 350-470 grams can be used in this embodiment.
  • Gram liner compared to traditional foamed tires, the general foamed rubber tire layer is about 200g, and the inner liner used is also about 200g.
  • the thickness of the 350-470 g liner is about twice the thickness of the 200g liner, so that the inner liner 1 is thickened and the air tightness of the inner liner 1 is improved.
  • the weight of the foam layer is generally 15-60 g; then an inner liner 1 with a weight of 350-450 g can be used.
  • the general foam rubber middle tire layer is about 200g, and the inner liner is about 200g.
  • the thickness of the inner liner of about 200g is about 0.7mm.
  • the thickness of the inner liner of 350-450 grams can be 1.2-1.6 mm (the thickness of the outer skin of the inner liner 1 is shown in FIG. 1), so that the inner liner 1 can be thickened.
  • the thickness of the inner liner 1 can be doubled, the air tightness of the inner liner 1 is more than doubled, and the air retention time of the middle tire is more than doubled.
  • this embodiment provides a basketball or football middle tire, and the outer surface of the foam layer 3 is pasted with a stem line.
  • the material of the stem line is selected from synthetic materials such as PVC, PU, and fiber materials according to actual needs.
  • This embodiment provides a leather ball.
  • the middle tire provided in Example 1 is selected, and then the outer surface of the middle tire (ie, the foam layer 3) is pasted with a skin composition.
  • the material of the outer skin is selected from synthetic materials such as PVC, PU, and fiber materials according to actual needs.
  • This embodiment provides a leather ball.
  • the middle tire provided in Example 2 is selected, and then the outer surface of the middle tire (that is, the foam layer 3) is pasted with a skin composition. It includes a foamed middle tire composed of an inner liner 1, an anti-inner liner deformation layer 2, and a foam layer 3, and an outer skin.
  • the pasted ball provided in this embodiment does not include a stalk line, and generally refers to a volleyball or football that does not need a stalk line.
  • this embodiment provides a leather ball.
  • the middle tire provided in Example 2 is selected. First, the outer surface of the middle tire foam layer 3 is pasted with stem lines to partition the outer surface of the middle tire, and the outer skin is cut , And then paste the outer skin by area.
  • the skin-applied ball provided in this embodiment includes a foamed middle tire composed of an inner liner 1, an anti-inner liner deformation layer 2 and a foam layer 3, a stem line 4 and an outer skin 5.
  • the anti-deformation layer 2 of the inner liner 1 is firstly wrapped with a layer of yarn or a patch on the outer surface of the inner liner 1, and then a layer of paste or latex is applied to the surface of the yarn layer/the surface of the patch layer to prevent the inner liner from deforming Composite layer.
  • a second patch layer is first attached to the outer surface of the foam layer 3, and the second patch layer is set to cover the entire
  • the outer surface of the foam layer 3 may be set only at the place where the stem line 4 is attached.
  • the sticking ball in this embodiment includes a stalk line, and generally refers to a basketball or football that needs a stalk line.
  • This embodiment provides a leather ball.
  • the middle tire provided in Example 3 is selected, and then the outer surface of the middle tire is pasted with a skin. It includes a foamed middle tire consisting of an inner liner 1, an anti-inner liner deformation layer 2 and a foam layer 3, as well as a stem line 4 and an outer skin 5.
  • a layer of anti-deformation layer 2 is provided on the outer surface of the liner 1.
  • the anti-deformation layer 2 is specifically formed by winding a layer of yarn to form a yarn layer, or attaching a layer of patch to form the first patch Floor;
  • the stem line 4 divides the outer surface of the middle tire
  • a second patch layer is first attached to the outer surface of the foam layer 3, and the second patch layer is set to cover the entire
  • the outer surface of the foam layer 3 may be set only at the place where the stem line 4 is attached.
  • the stem lines in the above-mentioned embodiments 6 and 7, or the outer surface of the middle tire is divided by embossing a dividing line on the foam layer 3 of the middle tire, and the outer skin is cut, and then the outer skin is pasted according to the area. It is made by pasting the stem line; or after the skin is pasted, it is printed on the surface of the skin by printing.
  • the present embodiment provides a leather sticking ball, which includes a foaming middle tire composed of an inner liner 1, an anti-inner liner deformation layer 2 and a foam layer 3, an outer skin 5, and a stem line 4.
  • a foaming middle tire composed of an inner liner 1, an anti-inner liner deformation layer 2 and a foam layer 3, an outer skin 5, and a stem line 4.
  • the difference between the middle tire in this embodiment and the tire in embodiment 1 is that the surface of the middle tire foam layer 3 is provided with multiple dividing lines or grooves, and the dividing lines or grooves align the outer surface of the foam layer 3 of the middle tire.
  • the surface is divided into several areas according to the ball specifications.
  • the division of the areas can be divided into various forms such as equal area, equal circumference, equal width, or irregular slices.
  • the dividing lines or grooves are in the whole tire.
  • the outer surfaces are interconnected, and the stem line is attached to the dividing line or groove.
  • the surface of the foam layer 3 is pressed or scraped to form dividing lines or grooves, or the dividing lines or grooves are pressed in the laminating mold or the shaping mold, and then the surface is provided with dividing lines
  • the grooved foam layer 3 is glued to the surface of the inner liner deformation prevention layer 2, and then the outer skin is cut by area, and then the outer skin is glued to the outer surface of the middle tire.
  • the outer skin is pasted relative to the middle tire area, and finally the stem line is pasted on the dividing line or groove.
  • the stem line 4 or a dividing line stamped on the foam layer 3 of the middle tire is used to partition the outer surface of the middle tire.
  • the stem line is first pasted on the dividing line or groove, and then the outer skin is cut After that, the skin is pasted by area; or after the skin is pasted, the stem line 4 is printed on the dividing line or groove of the skin surface by printing.
  • a second patch layer is first attached to the outer surface of the foam layer 3, and the second patch layer is set to cover the entire
  • the outer surface of the foam layer 3 may be set only at the place where the stem line 4 is attached.
  • the pasted ball in the above embodiments 4-8 includes, but is not limited to, basketball, football, football or volleyball. In general, basketball and rugby need to set a stalk line, but football and volleyball do not need to set a stalk line.
  • the foamed middle tire includes an inner liner 1, an anti-inner liner deformation layer 2 and a foam layer 3.
  • the anti-inner liner deformation layer 2 is wrapped around the outer surface of the inner liner 1.
  • the layer 3 covers the outer surface of the inner liner deformation prevention layer 2.
  • the foam tires also include implanted electronic devices.
  • electronic devices are implanted in the liner material during the process of making the liner, or implanted between the liner deformation prevention layer and the liner layer, or implanted in the liner deformation prevention layer and Between the foam layers; or design a liner with a cavity, and set the electronic device in the cavity.
  • Electronic devices include, but are not limited to, various types of small or micro electronic devices that implement ball intelligent application functions such as chips and various sensors.
  • a displacement sensor used to record the trajectory of a sphere.
  • the cavity in this embodiment includes, but is not limited to, a cavity with a certain fixed space, for example, a liner with a cavity disclosed in CN106984011A is used.
  • This embodiment provides a basketball with a thickened inner liner, which includes a foamed middle tire and an outer skin.
  • foamed middle tires can be selected from the foamed middle tires provided in Examples 1, 2, 3, and 9. :
  • the weight of the foam layer is 15 ⁇ 75g; the weight of the inner liner is 350 ⁇ 470g.
  • the weight of the foam layer is 15-60; the weight of the inner tank is 350-450 grams (the thickness is 1.2-1.6mm), which is compared with the traditional foam rubber tire.
  • the liner used is about 200g (thickness 0.7mm).
  • the thickness of the liner of the basketball provided in this embodiment is about twice as thick, and its airtight performance is increased. More than doubled, the air retention time of the middle tire more than doubled.
  • the weight of the inner liner in the middle tire can be increased compared to the middle tire of the same quality.
  • the thickness of the inner liner can be thickened, thereby improving the air tightness of the inner liner.
  • the foamed middle tire with the inner liner for implanting electronic devices provided in Example 9 is adopted. Since the electronic devices have a certain weight, In this way, the weight of the liner will not be reduced due to the introduction of electronic devices to meet the quality requirements of the liner, so as to better ensure the air tightness and elasticity of the liner. Therefore, for the middle tire with the same weight requirement, the foamed middle tire of the present invention can increase and thicken the inner liner on the original basis, which is more conducive to implanting electronic devices, and has a more complex structure designed to accommodate and protect electronic devices. Play a better performance, but also broaden the scope of application of the finished ball.
  • This embodiment provides a volleyball, which is made by using the foamed middle tire provided in Embodiment 1 or 2 and pasting the outer skin.
  • the foamed middle tire of the volleyball in this embodiment adopts a thickened inner liner, which has a weight of 90-115 g and a thickness of about 0.4 mm.
  • the traditional volleyball liner of the same material generally weighs 80-90g and has a thickness of about 0.3mm.
  • the volleyball provided in this embodiment can achieve thickening of the inner liner, thereby improving the air tightness of the inner liner.
  • the weight of the volleyball provided by this implementation can be controlled within the required weight range of 260 grams to 280 grams, and the weight of the middle tire is 180 grams to 190 grams. Under the premise of ensuring the weight requirements, the volleyball liner can be thickened and improved. Air tightness of the inner tank.
  • the foam rubber material is laminated on the yarn or patch, and then vulcanized in a vulcanizing mold. Penetration, the produced foamed tire is soft on the outside and hard on the inside, and the slap and touch feel is significantly harder than the middle tire of the present invention.
  • the foam layer is directly attached to the yarn layer or the patch layer, there is no bondage of the middle rubber layer, and the ball has better bounce and softness; and the foam layer is pasted on the surface of the yarn or patch or its composite layer , It can maintain the original flexibility of yarn or patch and foam, making it softer and more comfortable to touch.
  • the foam layer is used to replace the foam rubber middle tire layer, which can save the vulcanization process in the production process of the foam rubber middle tire, and at the same time avoids the high defects and uneven foaming during the vulcanization process. Moreover, since the foaming pores of the foam itself are conducive to the penetration and adhesion of glue, the polishing step can also be avoided.
  • the stem line is attached to the foam layer or attached to the surface of the foam through a patch, and the stem line is made of synthetic PVC, PU, fiber and other materials, compared with the existing stickers
  • the foam rubber material line on the surface of the tire due to the low density of the foam rubber, the leakage part is prone to aging and cracking in contact with air and sunlight, and is not wear-resistant.
  • the stem thread of the synthetic PVC, PU, fiber and other materials is not easy to age and crack when exposed to sunlight, is more wear-resistant during use, and has a longer service life.
  • the raw material is not stable enough, and the vulcanization reaction needs to be carried out in the vulcanization mold.
  • the technical requirements are high, and generally there are 10%-25% defective products.
  • the foam layer can be attached to the foamed foam layer, no defective products are produced, and the cost is low, which is beneficial to market applications.
  • the inner bladder layer can be heavier.
  • the bladder is equivalent to thickening the thickness of the inner bladder, thereby improving the air tightness of the inner bladder; also based on the light weight of the foam layer, the foamed middle tire of the present invention can also be used to make volleyballs with lighter quality requirements.
  • the foamed middle tire can also thicken the inner liner of the volleyball and improve the air-tightness of the volleyball; and it can be used to make the foamed middle tire with a more complicated structure of the inner liner, which will not be affected by the increase in the quality of the complicated structure.
  • the weight requirement of the sphere cannot be achieved.

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Abstract

一种发泡中胎及贴皮球与制作方法，其中发泡中胎包括内胆（1）、防内胆变形层（2）以及泡棉层，防内胆变形层（2）包裹在内胆（1）外表面，泡棉层覆盖设置在防内胆变形层（2）外表面。发泡中胎在防内胆变形层（2）上直接贴设泡棉层，基于泡棉层质量轻的特点，对于同等重量的中胎，能实现内胆（1）加重，对于相同材质的内胆（1）即能加厚内胆（1）厚度，从而提高内胆（1）气密性；也能使得发泡中胎能应用于质量较轻的排球，还能满足复杂结构内胆（1）的要求；此外，没有中间橡胶层的束缚，球体弹跳和柔软度更好；同时能保持纱线或贴布和泡棉原有的柔韧性，拍打碰触感更柔软舒服；采用泡棉层替代发泡橡胶中胎层，可免去制作过程中的硫化工艺及打磨过程，还能避免硫化过程中的不良和发泡不均匀。

Description

一种发泡中胎及贴皮球与制作方法 技术领域
本发明涉及球类产品领域，具体涉及一种发泡中胎及贴皮球与制作方法，尤其涉及一种免硫化免打磨的发泡中胎及贴皮球与制作方法。
技术背景
随着经济社会的发展，全民健康意识的觉醒，我国参与体育锻炼的体育人数日益增长，球类运动作为体育运动中的一大类也日益受到人们的亲睐，包括篮球、足球、排球、橄榄球等等，尤其篮球、足球在学校学生的体育运动中也越来越普及，并设置了相应的教学课程。为了提高用户的体验、更好地发挥运动员的技术水平，同时还出现了各种各样的新型球类产品。
以篮球为例：传统的贴片篮球的结构一般由外往内依次包括：外皮、中胎(普通橡胶或发泡橡胶)层、纱线和内胆；内胆主要用于充气，提供弹性；在内胆外表面缠绕纱线，可以较好地固定内胆的圆周，防止其变形，中胎(普通橡胶或发泡橡胶)层可方便划分外皮层片区，外皮可以提高抓控的手感。由于传统的发泡中胎(发泡橡胶)层是在纱线层上贴合上发泡橡胶料经硫化后制得，硫化过程中发泡橡胶中胎层与纱线层相互渗透，制作出的发泡中胎外软内硬，使得现有技术中这样的结构，运动员在打篮球的过程中，控球的时候球体较硬，抓感及回弹性(偏硬)，直接影响比赛技术的发挥，传统篮球的这种结构决定了球体无法更软、更好抓控，从而影响篮球技术的发挥。
针对这一问题，专利文献CN201807148U公开一种篮球，包括外皮、中胎外皮、纱线和内胆，纱线设于中胎外皮的内表面与内胆外表面之间，还包括一泡棉弹性层，所述的泡沫弹性层设于中胎外皮的外表面与外皮的内表面之间。
CN 208877847U公开一种贴布篮球，它包括由内至外依次设有的内胆、缠纱层、中胎层(中胎层的材质为发泡橡胶)、发泡层以及表皮；所述表皮的材质为棉布。该方案也在中胎层与表皮之间设计发泡层，同时采用棉布表皮。
CN 208626560U公开一种新型缝纫结构篮球，其包括外皮、中胎、泡棉弹性层，外皮上印刷有梗线，梗线上设有缝纫痕，外皮内设有泡棉弹性层、中胎。
上述3份专利对比文献，均通过在中胎层(在此需要说明的是，一般地，现有技术中，中胎由内胎+纱线层+中胎外皮层构成，本发明中涉及到的现有技术中的中胎层实质上指的是中胎外皮层)与外皮之间设置泡棉弹性层/发泡层来解决球体较硬、抓感不足以及弹性不足的问题，但是球体中仍然设有中胎层。由于现有技术中传统的中胎层是橡胶料或发泡橡胶料在模具内经硫化后制得，一般橡胶硫化后的表面都有橡胶油渗透到表面，需要表面打磨后才能 使用，否则胶水无法在硫化后的橡胶中胎表面牢固粘接。并且橡胶硫化过程中会向纱线或布层中渗透，影响纱线或布原有的柔韧性和弹性。但橡胶制品需要经过硫化后，才能使得橡胶的弹性和强度提高，也更耐磨。
例如：CN 109453499 A公开一种篮球及其制造工艺，其中篮球从内往外依次包括橡胶内胆、纱线层、中胎层和外皮，中胎层与外皮的原料包括如下重量份数的组分：天然橡胶30-35份；顺丁橡胶10-20份；氧化锌2.2-2.6份；硬脂酸0.4-0.8份；活性碳酸钙20-30份；白炭黑2-8份；环烷油0.6-1.2份；促进剂DM1-1.5份；促进剂TT0.1-0.3份；硫磺1-1.5份；酚醛树脂1-5。因此中胎层的主要原料为天然橡胶，现有技术中中胎层的主要原料也是橡胶。该对比文件公开的篮球其对应的制作工艺包括以下步骤：步骤一，在篮球内胆表面缠绕一层纱线形成纱线层；步骤二，采用中胎层的原料制备中胎皮，在纱线层的表面贴中胎皮形成中胎层；步骤三，采用中胎层的原料制备外皮，在中胎层的表面贴外皮，得到篮球毛坯；步骤四，把篮球毛坯放入球形模具内，闭合球形模具，并放入硫化设备内进行硫化；步骤五，将硫化后的球体进行整修、粘贴球埂线，得到篮球。该工艺同样需要对橡胶中胎层和橡胶外皮层进行硫化。再如：CN 104960213B、CN 104524748B公开的贴皮球制作工艺均需要将橡胶生料中胎/橡胶生料踢皮球进行硫化后得到硫化中胎/硫化贴皮球，然后采用打磨机进行打磨，去除硫化中胎外表面的油质。因而，硫化是采用橡胶作为原料制备贴皮球，主要是贴皮球中胎以及外皮所必不可少的一个步骤。
此外，以排球为例，排球的成品重量要求在260克～280克，因此中胎的重量还要远低于这个重量，一般在180克～190克。采用现有技术中在内胆上涂橡胶生料然后硫化制得的中胎，由于橡胶料本身的特性，具有较重的重量，需要减轻内胆，纱线及橡胶层的重量才能满足排球重量要求，如果橡胶层使用发泡橡胶料，为了满足重量要求，则只能采用很薄的橡胶料，而橡胶料太薄体现不出发泡的柔韧性。因而现有技术制得的发泡中胎基本只能应用于篮球的制作，而不能用于制作排球的中胎。
基于上述现有技术中采用橡胶制作皮球中胎所存在的缺陷，本发明拟提供一种免硫化免打磨发泡中胎的方案，同时还能解决排球等成片球要求重量低的球类发泡中胎的制作。
发明内容
本发明要解决的技术问题是提供一种发泡中胎及贴皮球与制作方法。该发泡中胎采用质量轻的泡棉层替代质量较重的硫化橡胶中胎层，可以免去橡胶生料中胎制成硫化橡胶中胎过 程中的硫化过程，同时也能省去硫化后对硫化橡胶中胎表面的打磨工艺；对于同等重量的中胎，能加重内胆，对于相同材质的内胆即能加厚内胆厚度，从而提高内胆气密性；也能使得发泡中胎能应用于质量较轻的排球，满足复杂结构内胆的要求，应用范围更广。
为了解决上述技术问题，本发明采用以下技术方案：
提供一种发泡中胎，包括内胆、防内胆变形层以及泡棉层，所述防内胆变形层包裹在内胆外表面，所述泡棉层覆盖设置在防内胆变形层外表面。
进一步地，为了固定内胆圆周，不让内胆充气过程中无限膨胀，防止内胆变形，在内胆外表面设置防内胆变形层，所述防内胆变形层包括但不限于纱线层、第一贴布层中的一种。
其他防止内胆变形的织物层也属于本方案保护的范围内。
进一步地，为了更好地固定内胆的圆周，不让内胆充气过程中无限膨胀，防止内胆变形，所述防内胆变形层为纱线层与糊料或乳胶组成的复合层，或贴布层与糊料或乳胶组成的复合层。
即进一步在纱线层、贴补层或其他织物层的外表面图上糊料或乳胶，糊料或乳胶干燥凝固后能使得纱线层、贴布层或其他织物层更加紧致，牢固，能更好地防止内胆变形。
本发明方案中涉及的泡棉是指塑料粒子发泡过的材料，简称泡棉。泡棉具有有弹性、重量轻、快速压敏固定、使用方便、弯曲自如、体积超薄、性能可靠等一系列特点。
进一步地，所述泡棉层的材料采用PU(聚氨酯，poly urethane)泡棉、EPE(聚乙烯)泡棉(又称珍珠棉)，PORON泡棉(PORON牌的一种高密度聚氨酯泡棉)，CR泡棉(一种通用型特种橡胶)，EVA(乙烯-醋酸乙烯共聚物)泡棉，PE泡棉，SBR泡棉，EPDM(三元乙丙橡胶，Ethylene-Propylene-Diene Monomer)泡棉，EPE(聚丙烯，Expanded polypropylene)泡棉中的一种。
进一步地，基于泡棉层重量轻的特点，本发明发泡中胎中：所述内胆为加厚内胆，内胆的厚度在保证不同型号皮球发泡中胎重量要求的前提下进行加厚。
本发明中的内胆的厚度指的形成内胆的内胆外皮层的厚度。
本发明方案中，由于使用重量轻的泡棉替代质量较重的发泡橡胶中层，对于同样质量的中胎，可以提高中胎中内胆的重量，对于采用相同材质的内胆的情况下，也就是可以加厚内胆的厚度，从而提高内胆的气密性。
例如：按照国际标准，一颗篮球的重量为600～650g，一般中胎的重量为450～500g，采 用本发明结构的发泡中胎，泡棉层的重量一般设置在15～75g(具体重量根据不同的材质和实际需要选择)，意味着可以用到350克～470克内胆。而传统的硫化橡胶发泡中胎，相同重量的情况下，发泡橡胶中胎层(发泡橡胶中胎外皮层)为200g左右，内胆也在200g左右。在采用相同材质内胆的情况下，本发明用到的350克～470克的内胆要比传统200g左右内胆厚将近一倍，其内胆气密性能增加一倍以上，中胎保气时间增加一倍以上。
具体以7号篮球为例，用发明结构制作的发泡中胎中：泡棉层的重量为15～60g；内胆重量为350～450克。传统用作7号篮球的发泡中胎，一般发泡橡胶中胎层也在200g左右，内胆也在200g左右对于现有常用的橡胶材质，200g左右内胆的厚度为0.7mm左右，而对于相同材质的内胆，350～450克的内胆可以做到1.2～1.6mm的厚度，从而实现内胆加厚。内胆厚度能加厚一倍左右，从而实现内胆加厚，提高内胆气密性。
一般地，采用本发明结构的发泡中胎，所述泡棉层的重量占整个发泡中胎较轻的重量比例，具体重量比例为中胎总重量的3％～15％。传统采用发泡橡胶材质的中胎，其发泡中胎层的重量要占到整个发泡中胎重量的50％左右。
此外，基于泡棉层重量轻的特点，本发明的发泡中胎能满足排球重量要求。
对于排球来说，一般排球成品重量要求在260克～280克，中胎重量还要远低于这个重量，一般排球中胎要求控制在在180克～190克，中胎中用到的排球内胆的重量为80克～90克。现有技术中使用发泡橡胶制得的中胎，为了实现发泡橡胶的柔韧性(不能太薄)，很难满足这一重量要求，而本方案中由于采用质量轻的泡棉层替代现有技术中的橡胶发泡中胎层，可以减轻整个中胎的质量，从而实现将其应用于排球中，同时在保证排球重量要求的前提下，也能实现对内胆适当加厚。采用本发明结构的排球发泡中胎，用到90～115g左右的内胆，对于相同材质的排球内胆，厚度能增加10～30％。因此，本发明方案提供的中胎，不仅能满足排球的重量要求，同时也能实现对排球内胆的加厚，提高内胆气密性。
进一步地，所述发泡中胎还包括梗线，所述梗线贴设在所述泡棉层的外表面。
常用的皮球中，篮球或橄榄球需要贴设梗线，而足球、排球不用贴梗线，梗线采用先贴设在中胎上，然后再贴合外皮；或先贴外皮然后再贴梗线；或印刷在成品球的外皮表面。
进一步地，为了使梗线更好地贴合在泡沫层的外表面，同时防止泡棉层受强拉力作用而 被撕裂。所述泡棉层的外表面还设有第二贴布层，所述第二贴布层为整体覆盖设置在泡棉层的外表面或仅设置在梗线贴设处。本发明中的第二贴布层能起到保护泡棉层的作用。
同样的，本发明中的第二贴布层的材质也包括但不限于贴布等其他织物层。
进一步地，所述梗线的材料为合成材料，包括但不限于合成PVC、PU、纤维材料中的一种。
对于需要贴设梗线的篮球或橄榄球，由于梗线贴设在泡棉层或者通过贴布贴设在泡棉表面，现有的发泡橡胶料梗线，由于发泡橡胶密度低，所以外漏部分与空气、阳光接触容易老化龟裂，且不耐磨。而本发明中的梗线采用合成PVC、PU、纤维等合成材质，阳光接触不易老化龟裂，使用时更耐磨，使用寿命更长。
进一步地，所述糊料为橡胶材料。
由于本方案中的糊料是涂设在纱线层、贴布层或其他织物层上，其渗透入纱线层、贴布层或其他织物层，干燥凝固后能使得纱线层、更加紧致，牢固，为了更好地防止内胆变形。一般涂设量控制在能看到织物为准，糊料比例控制在整个发泡中胎重量的20％以内不用硫化。
本方案中的橡胶材料包括但不限于天然橡胶(NR)、丁苯橡胶(SBR)、顺丁橡胶(BR)、异戊橡胶(IR)、氯丁橡胶(CR)、丁基橡胶(IIR)、丁晴橡胶(NBR)、乙丙橡胶(EPM/EPDM)、硅橡胶(Q)、氟橡胶(FPM)、聚氨酯橡胶(AU/EU)、丙烯酸酯橡胶(ACM/AEM)、氯磺化聚乙烯橡胶(CSM)、氯醚橡胶(CO/ECO)，或以上述橡胶为主要成分添加功能性添加剂组成的橡胶混合物。
进一步地，所述发泡中胎还包括植入的电子器件。
随着电子技术的发展，为了增加球的智能功能及娱乐性，会在球体中植入电子器件。这些电子器件包括但不限于芯片、各类传感器等实现球类智能化应用功能的各类小型或微型的电子设备，例如为了记录球类运动轨迹的位移传感器等。
进一步地，所述电子器件设于内胆材料中，或设于防内胆变形层与内胆层之间，或设于防内胆变形层与泡棉层之间；或者所述内胆为带有腔体的内胆，所述电子器件设于腔体内。
具体制作过程中，电子器件通过在制作内胆过程中植入在内胆材料中，或植入在防内胆变形层与内胆层之间，或植入在防内胆变形层与泡棉层之间；或者设计带有腔体的内胆，将电子器件设于腔体内。
进一步地，
所述泡棉层的表面设有多条划分线或凹槽，所述划分线或凹槽将中胎的泡棉层的外表面按照球类规范划分成若干块片区，片区的划分可按等面积或等周长或等宽度或不规则片型的形式进行划分，同时各划分线或凹槽之间在整个中胎外表面相互连通；所述发泡中胎还包括梗线，梗线贴设于划分线或凹槽处。
具体制作过程中，通过压设或通过刮薄的方式形成划分线或凹槽或者在贴合模具或定型模具内压设划分线或凹槽，然后按各划分线或凹槽划分的片区贴设外皮或者梗线。
本发明还提供一种贴皮球，包括上述的发泡中胎及外皮，所述外皮贴设在发泡中胎外表面。
进一步地，所述贴皮球包括但不限于篮球、排球、橄榄球、足球。
本发明还提供一种发泡中胎的制作方法，具体包括如下步骤：
(1)在内胆外表面设置一层防内胆变形层，所述防内胆变形层具体是通过缠绕纱线形成纱线层，或者贴上第一贴布形成第一贴布层；
(2)然后在防内胆变形层的表面涂上粘接剂后，贴上泡棉层即可。
另一种制作方法的方案中：
步骤(1)中防内胆变形层具体是通过如下方法制得：
先在内胆外表面缠绕纱线，然后在纱线表面涂上糊料或乳胶得到防内胆变形的复合层；
或者是，先在内胆外表面贴上第一贴布，然后在第一贴布层表面涂上一层糊料或乳胶得到防内胆变形的复合层。
进一步地，步骤(2)中控制泡棉层的重量为中胎总重量的3％～15％。
进一步地，步骤(1)还包括制作加厚内胆，内胆的厚度在保证不同型号皮球发泡中胎重量要求的前提下进行加厚。
进一步地，上述制作方法还包括步骤(3)，在泡棉层的整个外表面贴设贴布或者预留梗线贴设处贴设第二贴布形成第二贴布层，然后在第二贴布层上贴设梗线。
本发明的有益效果：
1、能提高柔软度，降低不良，免硫化免打磨：采用本发明结构的发泡中胎由于在防内胆变形层(纱线层或贴布层或其复合层)上直接贴设泡棉层，没有中间发泡橡胶层的束缚，球体弹跳和柔软度更好；且在防内胆变形层表面贴上泡棉，能保持纱线或贴布和泡棉原有的柔韧性，拍打碰触感更柔软舒服。而现有技术制作的发泡中胎是在纱线或贴布上贴合发泡橡胶 料，再在硫化模硫化而成，因为橡胶要制作出发泡效果必须经过硫化，硫化过程中发泡橡胶层与纱线层或贴布层相互渗透，制作出的发泡中胎外软内硬，拍打碰触的感觉相比本发明的中胎明显偏硬。
同时采用泡棉层替代发泡橡胶中胎层，可以省去发泡橡胶中胎在制作过程中的硫化工艺，同时也就避免了硫化过程中产生的较高不良及发泡不均匀现象。而且由于泡棉自身的发泡孔隙利于胶水渗透附着，也可免去打磨的步骤。
3、避免不良，降低成本：现有技术制作的发泡中胎由于原料的稳定性不够，而且需要在硫化摸内进行硫化反应，技术条件要求高，且一般都有10％-25％的不良品，一旦原料不稳定或打料过程中出现一点偏差或硫化模具温度偏差，都会造成发泡不均或发泡不起，出硫化摸就无法挽回，造成不良品，所以市场价格高，有能力生产的厂家有限，市场占有率比较低。本发明的发泡中胎在制作过程中泡棉层是发泡好的泡棉层贴合上去就行，不会产生不良品，造价成本低，有利于市场应用。
3、加重内胆，提高气密性：本发明的发泡中胎在制作过程中由于是在防内胆变形层(纱线层或贴布层或其符合层)上贴合泡棉，泡棉比重轻，所以在同等重量的中胎情况下，能加重内胆层，加重后的内胆气密性更高。
比如：7号篮球，现有技术一般会使用200克左右的内胆，橡胶发泡中胎层重量也会在200克左右(橡胶发泡中胎层会占到整个中胎总质量的50％左右)，而本发明由于用到的泡棉层的重量在15克～60克即可(泡棉层的重量会仅占到整个中胎总质量的3～15％)，因而可以用到350克～450克内胆，能增大内胆的重量，对于相同尺寸和材质的内胆，350克～450克重量的内胆会比200克左右具有更厚的厚度(相同材质厚一倍左右)，其内胆气密性增加一倍以上，中胎保气时间增加一倍以上。
4、能应用于排球，应用更广泛：基于泡棉层重量较轻这一特点，本发明提供的中胎还能用于排球上，采用普通排球中胎用的内胆，加上.纱线层或贴布层，贴合上泡棉层即可。一般排球成品重量要求在260克～280克，中胎重量还要远低于这个重量，现有技术中使用发泡橡胶制得的中胎很难满足这一重量要求。在相同内胆重量的情况下，采用本发明的方案，可以使得成品排球的重量控制在质量要求范围内；同时也能实现对排球内胆的加厚，提高内胆气密性。而且采用本发明发泡中胎做出的排球手感更舒适。
5、对于同样重量要求的中胎，本发明的发泡中胎能在原有基础上对内胆加重加厚，更利于植入电子器件，并且设计较为复杂的结构，容纳和保护电子器，让其发挥更好的性能，同时也能拓宽成品球的应用范围。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明发泡中胎的结构示意图；
图2为采用本发明发泡中胎的一种篮球的外形结构示意图；
附图标记说明：
1-内胆；2-防内胆变形层；3-发泡层；4-梗线；5-外皮。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例及附图，对本发明技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，本发明实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本发明中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个以上，例如三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是 电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
另外，本发明各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
实施例1
如图1所示，本实施例提供一种发泡中胎，包括内胆1、防内胆变形层2以及泡棉层3，防内胆变形层2包裹在内胆1外表面，泡棉层3覆盖设置在防内胆变形层2外表面。
作为优选实施例，防内胆变形层2采用纱线层或第一贴布层。纱线层或第一贴布层设置在内胆外表面，能够固定内胆圆周，不让内胆充气过程中无限膨胀，防止内胆变形。但防内胆变形层的材质并不局限于纱线或者贴布，其他防止内胆变形的织物层也属于本方案保护的范围内。
本实施例提供的发泡中胎由如下方法制得：
(1)在内胆1外表面设置一层防内胆变形层2，防内胆变形层2具体是通过缠绕一层纱线形成纱线层，或者贴上第一贴布形成第一贴布层；
(2)然后在防内胆变形层2的表面涂上胶水或其他粘接剂后然后贴上泡棉层3即可。
作为优选实施例，泡棉层的材料根据实际需要采用采用PU泡棉，EPE泡棉，PORON泡棉，CR泡棉，EVA泡棉，PE泡棉，SBR泡棉，EPDM泡棉，EPE泡棉中的一种。
实施例2
本实施例与实施例1的区别在于，防内胆变形层2采用纱线层与糊料或乳胶组成的复合层，或第一贴布层与糊料或乳胶组成的复合层。
进一步在纱线层、第一贴补层或其他织物层的外表面图上糊料或乳胶，糊料或乳胶干燥凝固后能使得纱线层、第一贴布层或其他织物层更加紧致，牢固，能更好地防止内胆变形。
同样的，本实施例的防内胆变形层2同样不局限于纱线层或贴补层，其他防止内胆变形的织物层与糊料或者橡胶组成的复合层也属于本方案保护的范围内。
本实施例提供的发泡中胎由如下方法制得：
(1)在内胆1外表面设置一层防内胆变形层2，防内胆变形层2具体是通过如下方法制得：先在内胆外表面缠绕一层纱线或贴上一层贴布，然后在纱线层表面/贴布层表面涂上一层糊料或乳胶得到防内胆变形的复合层。
(2)然后在防内胆变形层2的表面涂上胶水或其他粘接剂后贴上泡棉层3即可。
作为优选实施例，泡棉层的材料根据实际需要采用泡棉层的材料采用PU泡棉，EPE泡棉，PORON泡棉，CR泡棉，EVA泡棉，PE泡棉，SBR泡棉，EPDM泡棉，EPE泡棉中的一种。
所述糊料为橡胶材料，由于此处的糊料是涂设在纱线层、贴布层或其他织物层上，其渗透入纱线层、贴布层或其他织物层，干燥凝固后能使得纱线层、更加紧致，牢固，能更好地防止内胆变形。一般涂设量控制在能看到织物为准，糊料比例控制在整个发泡中胎重量的20％以内不需要硫化。
作为优选实施例，橡胶材料根据实际需要采用天然橡胶、丁苯橡胶、顺丁橡胶、异戊橡胶、氯丁橡胶、丁基橡胶、丁晴橡胶、乙丙橡胶、硅橡胶、氟橡胶、聚氨酯橡胶、丙烯酸酯橡胶、氯磺化聚乙烯橡胶、氯醚橡胶，或以上述橡胶为主要成分添加功能性添加剂组成的橡胶混合物。
作为其中更优选的实施例，实施例1、2提供的发泡中胎，为了满足篮球的重量要求，本实施例提供的发泡中胎，用到加厚内胆1，内胆1的厚度在保证不同型号皮球发泡中胎重量要求的前提下进行加厚，一般采用比传统发泡橡胶中胎厚度厚一倍左右的内胆。本发明中的内胆1的厚度指的形成内胆的内胆层的厚度。
基于泡棉层重量轻的特点，一般地，泡棉层3重量设置为中胎总重量的3％～15％。按照国际标准，一颗篮球的重量为600～650g，一般中胎的重量为450～500g，那么泡棉层的重量一般设置在15～75g，那么本实施例中就可以用到350克～470克内胆，相比传统发泡中胎，一般发泡橡胶中胎层在200g左右，用到的内胆也在200g左右。对于相同内胆材质的情况下，350克～470克内胆的厚度相对200g左右内胆的厚度，要厚一倍左右，从而实现内胆1加厚，提高内胆1的气密性。
具体以7号篮球为例，采用本实施例提供的发泡中胎：泡棉层的重量一般为15～60g；那么可以用到重量为350～450克的内胆1。传统用作7号篮球的发泡中胎，一般发泡橡胶中胎层也在200g左右，内胆也在200g左右，对于现有常用的橡胶材质，200g左右内胆的厚度为0.7mm左右，而对于相同材质的内胆，350～450克的内胆可以做到1.2～1.6mm的厚度(图1中显示内胆1的外皮的厚度)，从而实现内胆1加厚。内胆1厚度能加厚一倍左右，其内胆1气密性能增加一倍以上，中胎保气时间增加一倍以上。
实施例3
本实施例与实施例1的区别在于，提供一种篮球或者橄榄球的中胎，在泡棉层3的外表面贴设有梗线。作为优选实施例，梗线的材料根据实际需要选用PVC、PU、纤维材料等合成材料。
实施例4
本实施例提供一种贴皮球，选用实施例1所提供的中胎，然后在中胎外表面(即泡棉层3上)贴上外皮组成。作为优选实施例，外皮的材料根据实际需要选用PVC、PU、纤维材料等合成材料。
实施例5
本实施例提供一种贴皮球，选用实施例2所提供的中胎，然后在中胎外表面(即泡棉层3上)贴上外皮组成。包括内胆1、防内胆变形层2以及泡棉层3组成的发泡中胎，以及外皮。
本实施例提供的贴皮球不包括梗线，一般指的是不需要设置梗线的排球或者足球。
实施例6
如图2所示，本实施例提供一种贴皮球，选用实施例2所提供的中胎，先在中胎泡棉层3的外表面贴上梗线将中胎外表面分区，裁制外皮，然后按区贴上外皮制得。
本实施例提供的贴皮球包括内胆1、防内胆变形层2以及泡棉层3组成的发泡中胎，梗线4以及外皮5。防内胆变形层2是先在内胆1外表面缠绕一层纱线或贴上一层贴布，然后在纱线层表面/贴补层表面涂上一层糊料或乳胶得到防内胆变形的复合层。
作为优选实施例，为了使梗线4更好地贴合在泡沫层3的外表面，先在泡棉层3的外表面贴设第二贴布层，第二贴布层为整体覆盖设置在泡棉层3的外表面或仅设置在梗线4贴设处。
本实施例中的贴皮球包括梗线，一般指的是需要设置梗线的篮球或者橄榄球。
实施例7
本实施例提供一种贴皮球，选用实施例3所提供的中胎，然后在中胎外表面贴上外皮组成。包括内胆1、防内胆变形层2以及泡棉层3组成的发泡中胎，以及梗线4、外皮5。
本实施例中所述贴皮球由如下方法制得：
(1)在内胆1外表面设置一层防内胆变形层2，防内胆变形层2具体是通过缠绕一层纱线形成纱线层，或者贴上一层贴布形成第一贴布层；
(2)然后在防内胆变形层2的表面涂上胶水后然后贴上泡棉层3；
(3)然后在泡棉层3的外表面贴上梗线4，梗线4将中胎外表面分区；
(4)裁制外皮，然后按区贴上外皮即可。
作为优选实施例，为了使梗线4更好地贴合在泡沫层3的外表面，先在泡棉层3的外表面贴设第二贴布层，第二贴布层为整体覆盖设置在泡棉层3的外表面或仅设置在梗线4贴设处。
作为其他优选实施例，上述实施例6、7中的梗线，或者采用在中胎的泡棉层3压印上划分线将中胎外表面分区，裁制外皮，然后按区贴上外皮后贴设梗线制得；或者在外皮贴好之后，通过印刷的方式，印设在外皮表面。
实施例8
如图2所示，本实施例提供一种贴皮球，包括内胆1、防内胆变形层2以及泡棉层3组成的发泡中胎以及外皮5、梗线4。本实施例中的中胎与实施例1中胎的不同在于，中胎泡棉层3的表面设有多条划分线或凹槽，划分线或凹槽将中胎的泡棉层3的外表面按照球类规范划分成若干块片区，片区的划分可按等面积或等周长或等宽度或不规则片型等多种形式进行划分，同时各划分线或凹槽之间在整个中胎外表面是相互连通的，梗线贴设于划分线或凹槽 处。
在制作时，将泡棉层3的表面通过压设或通过刮薄的方式形成划分线或凹槽或者在贴合模具或定型模具内压设划分线或凹槽，然后将表面设有划分线或凹槽的泡棉层3用胶水贴在防内胆变形层2的表面，然后按区裁制外皮，接着将外皮通过胶水分别粘贴于中胎外表面的片区上，裁制外皮时，所述外皮相对于中胎片区粘贴，最后将梗线贴设于划分线或凹槽处。
作为其他优选实施例，梗线4，或者采用在中胎的泡棉层3压印上划分线将中胎外表面分区，先将梗线贴设于划分线或凹槽处，然后裁制外皮，之后按区贴设外皮；或者在外皮贴设好后，通过印刷的方式，将梗线4印设在外皮表面划分线或凹槽处。
作为优选实施例，为了使梗线4更好地贴合在泡沫层3的外表面，先在泡棉层3的外表面贴设第二贴布层，第二贴布层为整体覆盖设置在泡棉层3的外表面或仅设置在梗线4贴设处。
上述实施例4-8中的贴皮球包括但不限于篮球、橄榄球、足球或排球。一般，篮球、橄榄球是需要设置梗线的，而足球和排球是不需要设置梗线的。
实施例9
本实施例提供一种发泡中胎，所述发泡中胎包括内胆1、防内胆变形层2以及泡棉层3，防内胆变形层2包裹在内胆1外表面，泡棉层3覆盖设置在防内胆变形层2外表面。为了适应智能化应用的要求，所述发泡中胎还包括植入的电子器件。
在实际的制作过程中，电子器件通过在制作内胆过程中植入在内胆材料中，或植入在防内胆变形层与内胆层之间，或植入在防内胆变形层与泡棉层之间；或者设计带有腔体的内胆，将电子器件设于腔体内。
电子器件包括但不限于芯片、各类传感器等实现球类智能化应用功能的各类小型或微型的电子设备。例如用于记录球体运动轨迹的位移传感器。本实施例中的腔体包括但不限于存在一定固定空间的腔体，例如：采用CN106984011A公开的带腔体的内胆。
实施例10
本实施例提供一种带加厚内胆的篮球，包括发泡中胎和外皮，发泡中胎任一选用实施例1、2、3、9提供的发泡中胎，发泡中胎中：泡棉层的重量为15～75g；内胆重量为350～470 克。
以7号篮球为例，其发泡中胎中：泡棉层的重量为15～60；内胆重量为350～450克(厚度为1.2～1.6mm)，相比传统采用发泡橡胶中胎的7号篮球，用到的内胆在200g左右(厚度为0.7mm)，两者内胆的厚度相比，本实施例提供的篮球的内胆厚度要厚一倍左右，其气密性能增加一倍以上，中胎保气时间增加一倍以上。
因此，由于使用重量较轻的泡棉替代质量较重的发泡橡胶中层，相较于同样质量的中胎，可以提高中胎中内胆的重量，对于相同材质和型号的内胆，也就是可以加厚内胆的厚度，从而提到内胆的气密性。
由于在相同质量中胎的情况下，可以提高内胆的质量，例如采用实施例9提供的带有用于植入电子器件的腔体的内胆的发泡中胎，由于电子器件具有一定重量，如此，不会因为电子器件的引入而降低内胆的重量以实现内胆质量的要求，从而更好地保证内胆的气密性和弹性。因而对于同样重量要求的中胎，本发明的发泡中胎能在原有基础上对内胆加重加厚，更利于植入电子器件，并且设计较为复杂的结构，容纳和保护电子器，让其发挥更好的性能，同时也能拓宽成品球的应用范围。
实施例11
本实施例提供一种排球，选用实施例1或2提供的发泡中胎，贴上外皮制成。本实施例的排球的发泡中胎采用加厚内胆，内胆重量为90～115g，厚度在0.4mm左右。传统相同材质的排球内胆，重量一般在80～90g，厚度在0.3mm左右。本实施例提供的排球能实现内胆加厚，从而提高内胆气密性。
本实施提供的排球重量能控制在260克～280克要求的重量范围内，中胎重量在180克～190克，在保证重量要求的前提下，还能实现对排球内胆的加厚，提高内胆气密性。
相比现有技术制作的发泡中胎，在纱线或贴布上贴合发泡橡胶料，再在硫化模硫化而成，硫化过程中发泡橡胶层与纱线层或贴布层相互渗透，制作出的发泡中胎外软内硬，拍打碰触的感觉相比本发明的中胎明显偏硬。本发明由于在纱线层或贴布层上直接贴设泡棉层，没有中间橡胶层的束缚，球体弹跳和柔软度更好；且在纱线或贴布或者其复合层表面贴上泡棉，能保持纱线或贴布和泡棉原有的柔韧性，拍打碰触感更柔软舒服。同时采用泡棉层替代发泡橡胶中胎层，可以省去发泡橡胶中胎在制作过程中的硫化工艺，同时也就避免了硫化过程中 产生的较高不良及发泡不均匀现象。而且由于泡棉自身的发泡孔隙利于胶水渗透附着，也可免去打磨的步骤。
对于需要贴设梗线的篮球或橄榄球，由于梗线贴设在泡棉层或者通过贴布贴设在泡棉表面，且梗线采用合成PVC、PU、纤维等材质，相比现有贴设在发泡橡胶中胎表面的发泡橡胶料梗线，由于发泡橡胶密度低，所以外漏部分与空气、阳光接触容易老化龟裂，且不耐磨。本发明合成PVC、PU、纤维等材质的梗线阳光接触不易老化龟裂，使用时更耐磨，使用寿命更长。
相比现有技术制作的发泡中胎由于原料的稳定性不够，而且需要在硫化摸内进行硫化反应，技术条件要求高，且一般都有10％-25％的不良品，一旦原料不稳定或打料过程中出现一点偏差或硫化模具温度偏差，都会造成发泡不均或发泡不起，出硫化摸就无法挽回，造成不良品，所以市场价格高，有能力生产的厂家有限，市场占有率比较低。本发明的发泡中胎在制作过程中泡棉层是发泡好的泡棉层贴合上去就行，不会产生不良品，造价成本低，有利于市场应用。
对于实施例8需要在泡棉层上设置划分线或凹槽的情形，操作和制作过程也更简单，可以实现在泡棉层上设置好划分线或凹槽再贴上去即可，现有技术的发泡中胎开设凹槽，需要对开设专门的硫化模具。
此外，最为重要的一点是，基于泡棉层质量轻的特点，在同等重量的发泡中胎情况下，尤其是篮球的发泡中胎，能加重内胆层，对于相同材料和型号的内胆，相当于能加厚内胆的厚度，从而提高内胆气密性；同样基于泡棉层质量轻的特点，本发明结构的发泡中胎还能应用于制作质量要求较轻的排球的发泡中胎，同时还能加厚排球的内胆，提高排球的气密性；而且能适用于制作带有较为复杂结构的内胆的发泡中胎，不会因为复杂结构的质量增加而无法实现球体重量的要求。
以上所述为本发明的具体实施方式，但不能对本发明构成任何限制，因此需特别指出，凡是以本发明为基础，做得任何修改与改进均落在本发明保护范围之内。

Claims (17)

  1. 一种发泡中胎，其特征在于，包括内胆、防内胆变形层以及泡棉层，所述防内胆变形层包裹在内胆外表面，所述泡棉层覆盖设置在防内胆变形层外表面。
  2. 根据权利要求1所述的发泡中胎，其特征在于，所述防内胆变形层为纱线，或第一贴布层，或纱线层与糊料或乳胶组成的复合层，或第一贴布层与糊料或乳胶组成的复合层。
  3. 根据权利要求1或2所述的发泡中胎，其特征在于，
    所述内胆为加厚内胆，内胆的厚度在保证不同型号皮球发泡中胎重量要求的前提下进行加厚。
  4. 根据权利要求1或2所述的发泡中胎，其特征在于，所述发泡中胎还包括梗线，所述梗线贴设在所述泡棉层的外表面。
  5. 根据权利要求4所述的发泡中胎，其特征在于，所述泡棉层的外表面还设有第二贴布层，所述第二贴布层为整体覆盖设置在泡棉层的外表面或仅设置在梗线贴设处。
  6. 根据权利要求1～5任一所述的发泡中胎，其特征在于，所述泡棉层的材料采用PU泡棉，EPE泡棉，PORON泡棉，CR泡棉，EVA泡棉，PE泡棉，SBR泡棉，EPDM泡棉，EPE泡棉中的一种。
  7. 根据权利要求4所述的发泡中胎，其特征在于，所述梗线的材料为PVC、PU、纤维材料中的一种。
  8. 根据权利要求2所述的发泡中胎，其特征在于，所述糊料为橡胶材料。
  9. 根据权利要求1～2、5或7～8任一所述的发泡中胎，其特征在于，所述发泡中胎还包括植入的电子器件。
  10. 根据权利要求9所述的发泡中胎，其特征在于，所述电子器件设于内胆材料中，或设于防内胆变形层与内胆层之间，或设于防内胆变形层与泡棉层之间；或者所述内胆为带有腔体的内胆，所述电子器件设于腔体内。
  11. 根据权利要求1所述的发泡中胎，其特征在于，
    所述泡棉层的表面设有多条划分线或凹槽，所述划分线或凹槽将泡棉层的外表面按照球类规范划分成若干块片区，片区的划分可按等面积或等周长或等宽度或不规则片型的形式进行划分，同时各划分线或凹槽之间在整个发泡中胎外表面相互连通；所述发泡中胎还包括梗 线，梗线贴设于划分线或凹槽处。
  12. 一种贴皮球，其特征在于，包括权利要求1～11任一所述的发泡中胎以及外皮，所述外皮贴设在发泡中胎外表面，所述贴皮球包括但不限于篮球、排球、橄榄球、足球。
  13. 一种发泡中胎的制作方法，其特征在于，具体包括如下步骤：
    (1)在内胆外表面设置一层防内胆变形层，所述防内胆变形层具体是通过缠绕纱线形成纱线层，或者贴上第一贴布形成第一贴布层；
    (2)然后在防内胆变形层的表面涂上粘接剂后，贴上泡棉层即可。
  14. 根据权利要求13所述的发泡中胎的制作方法，其特征在于，
    步骤(1)中防内胆变形层具体是通过如下方法制得：
    先在内胆外表面缠绕纱线，然后在纱线表面涂上糊料或乳胶得到防内胆变形的复合层；
    或者是，先在内胆外表面贴上第一贴布，然后在第一贴布层表面涂上一层糊料或乳胶得到防内胆变形的复合层。
  15. 根据权利要求13或14所述的发泡中胎的制作方法，其特征在于，步骤(2)中控制泡棉层的重量为中胎总重量的3％～15％。
  16. 根据权利要求15所述的发泡中胎的制作方法，其特征在于，
    步骤(1)还包括制作加厚内胆，内胆的厚度在保证不同型号皮球发泡中胎重量要求的前提下进行加厚。
  17. 根据权利要求16所述的发泡中胎的制作方法，其特征在于，
    还包括步骤(3)，在泡棉层的整个外表面贴设贴布或者预留梗线贴设处贴设第二贴布形成第二贴布层，然后在第二贴布层上贴设梗线。
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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111087662B (zh) * 2019-12-07 2022-04-01 福建元吉体育用品有限公司 球中胎表皮材料以及球中胎表皮的制备方法
CN111603733A (zh) * 2020-06-16 2020-09-01 东莞市赫柏运动用品有限公司 一种热粘合比赛足球的生产工艺
CN111973960A (zh) * 2020-09-15 2020-11-24 洞口县昌冠隆体育用品有限公司 Tpu发泡中胎的制作方法和tpu发泡中胎
CN111973959A (zh) * 2020-09-15 2020-11-24 洞口县昌冠隆体育用品有限公司 一种球的制作方法、tpu皮料、加硫模具和机贴球
CN112933559A (zh) * 2021-02-03 2021-06-11 天长市正牧铝业科技有限公司 一种pu贴皮排球的干法制造工艺
CN112957695A (zh) * 2021-02-03 2021-06-15 天长市正牧铝业科技有限公司 一种聚氨酯树脂车缝排球及其制备工艺
CN112933557A (zh) * 2021-02-03 2021-06-11 天长市正牧铝业科技有限公司 基于高密封性的丁基内胆pu贴皮足球及其制备工艺
CN116271747B (zh) * 2023-05-23 2023-08-08 江苏恒大体育用品有限公司 一种复合橡胶球内胆材料及其加工工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2628100Y (zh) * 2003-05-24 2004-07-28 胡两发 一种改进的发泡球的组成结构
US20110015011A1 (en) * 2009-07-14 2011-01-20 Hung Da Chou Inflatable sport ball structure and manufacturing method thereof
CN103285562A (zh) * 2013-05-13 2013-09-11 南京群力运动器材有限公司 一种发泡篮球制作方法及发泡篮球
US20160243409A1 (en) * 2016-03-18 2016-08-25 TongCheng HuiLong Sports articles Co.Ltd. Sewn ball and manufacturing method thereof
CN205598558U (zh) * 2016-01-26 2016-09-28 陈桂锋 一种足球或排球
CN108721847A (zh) * 2017-04-20 2018-11-02 王海冰 一种贴皮气排球及其制作方法
CN109276860A (zh) * 2018-11-26 2019-01-29 姚月良 运动球和运动球制作方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015209797B3 (de) * 2015-05-28 2016-07-14 Adidas Ag Paneel für einen Ball
CN204695344U (zh) * 2015-06-01 2015-10-07 深圳市微队信息技术有限公司 一种运动感应装置以及感应式球体
US10632346B2 (en) * 2017-10-05 2020-04-28 Anwar Khawaja Industries Pvt. Ltd. Sports ball and method of manufacturing sports ball
CN208626560U (zh) * 2018-07-05 2019-03-22 广西乐球体育用品有限公司 新型缝纫结构篮球
CN208877847U (zh) * 2018-09-18 2019-05-21 福建元吉体育用品有限公司 一种贴布篮球
CN109575389B (zh) * 2018-11-09 2021-05-04 南通高桥体育用品有限公司 一种轻质运动球内胎的发泡生产工艺
CN210751160U (zh) * 2019-08-02 2020-06-16 陈红维 一种发泡中胎及贴皮球

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2628100Y (zh) * 2003-05-24 2004-07-28 胡两发 一种改进的发泡球的组成结构
US20110015011A1 (en) * 2009-07-14 2011-01-20 Hung Da Chou Inflatable sport ball structure and manufacturing method thereof
CN103285562A (zh) * 2013-05-13 2013-09-11 南京群力运动器材有限公司 一种发泡篮球制作方法及发泡篮球
CN205598558U (zh) * 2016-01-26 2016-09-28 陈桂锋 一种足球或排球
US20160243409A1 (en) * 2016-03-18 2016-08-25 TongCheng HuiLong Sports articles Co.Ltd. Sewn ball and manufacturing method thereof
CN108721847A (zh) * 2017-04-20 2018-11-02 王海冰 一种贴皮气排球及其制作方法
CN109276860A (zh) * 2018-11-26 2019-01-29 姚月良 运动球和运动球制作方法

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