JPH1128103A - Sole and its manufacture - Google Patents
Sole and its manufactureInfo
- Publication number
- JPH1128103A JPH1128103A JP20088197A JP20088197A JPH1128103A JP H1128103 A JPH1128103 A JP H1128103A JP 20088197 A JP20088197 A JP 20088197A JP 20088197 A JP20088197 A JP 20088197A JP H1128103 A JPH1128103 A JP H1128103A
- Authority
- JP
- Japan
- Prior art keywords
- sole
- rubber
- shoe sole
- forming
- woven fabric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims abstract description 61
- 239000005060 rubber Substances 0.000 claims abstract description 61
- 239000002759 woven fabric Substances 0.000 claims abstract description 24
- 239000007787 solid Substances 0.000 claims abstract description 17
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000005187 foaming Methods 0.000 abstract description 3
- 239000004088 foaming agent Substances 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 238000004073 vulcanization Methods 0.000 description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 241000272525 Anas platyrhynchos Species 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229920003049 isoprene rubber Polymers 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 238000010058 rubber compounding Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920002589 poly(vinylethylene) polymer Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、発泡体からなる合中底
と充実体からなる外底とを積層した靴底に関し、製造時
工程が簡略化され、しかも外観の優れた靴底とその製法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe sole in which an intermediate sole made of a foam and an outer sole made of a solid body are laminated. It concerns the manufacturing method.
【０００２】[0002]
【従来の技術】従来は、軽くて、クッション性があり、
磨耗しにくい靴底を製造するには、合中底にＥＶＡ、
１，２−ポリブタジエン、ゴム等の発泡体を使用して軽
量性やクッション性を付与し、接地面側の外底には、磨
耗しにくい充実ゴムを使用する構成としていた。そして
上記構成の靴底を製造するには、外底を加硫成形し、合
中底を加硫発泡成形した後、鋤き、裁断後、両者の貼り
合わせ面をバフ掛けし、接着剤を塗布し貼り合わせを行
い、必要に応じて底側面を研磨するなど多くの作業工程
を要していた。2. Description of the Related Art Conventionally, it is light and has cushioning properties.
In order to produce a shoe sole that is hard to wear, EVA,
Lightweight and cushioning properties are imparted by using foams such as 1,2-polybutadiene and rubber, and a solid rubber that is hard to wear is used for the outer bottom on the grounding surface side. Then, in order to manufacture the shoe sole having the above configuration, the outer sole is vulcanized and formed, the intermediate sole is vulcanized and foamed, plowed, cut, buffed on the bonding surface of both, and the adhesive is applied. Many work steps were required, such as applying and bonding, and polishing the bottom side if necessary.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、合中底が発
泡体からなり、外底が充実ゴムからなる二層靴底におい
て、合中底と外底を一体成形し、合中底と外底との貼り
合わせのために要する工程を大幅に削減した靴底及びそ
の製法を提供するものである。SUMMARY OF THE INVENTION The present invention relates to a two-layer shoe sole in which the midsole is made of foam and the outer sole is made of solid rubber. An object of the present invention is to provide a shoe sole and a method for manufacturing the shoe sole, in which steps required for bonding to the outer sole are greatly reduced.
【０００４】[0004]
【課題を解決するための手段】本発明の靴底は、縦方向
の糸と横方向の糸を織り込んだ伸び止め織布と、発泡ゴ
ムと、充実ゴムとが積層され一体成形されていることを
特徴とするものである。The sole of the present invention is formed by laminating a non-stretch woven fabric in which longitudinal threads and transverse threads are woven, foamed rubber, and solid rubber, and integrally formed. It is characterized by the following.
【０００５】本発明の靴底は、縦方向の糸と横方向の糸
を織り込んだ伸び止め織布と、加硫剤を含む発泡ゴム
と、加硫剤を含む充実ゴムとが順次積層され加熱一体成
形されていることを特徴とするものである。[0005] The shoe sole of the present invention is formed by sequentially laminating a stretch-resistant woven fabric in which longitudinal yarns and transverse yarns are woven, foamed rubber containing a vulcanizing agent, and solid rubber containing a vulcanizing agent. It is characterized by being integrally molded.
【０００６】本発明の靴底の製法は外底成形用未加硫ゴ
ム生地と、合中底成形用発泡性未加硫ゴム生地と、縦方
向の糸と横方向の糸を織り込んだ伸び止め織布とを重ね
て、靴底成形型にセットし、加熱加圧して、外底と合中
底と伸び止め織布とを加硫一体化すると同時に合中底を
発泡することを特徴とするものである。The method of manufacturing a sole according to the present invention comprises an unvulcanized rubber fabric for forming an outer sole, a foamable unvulcanized rubber fabric for forming a midsole, a stretch-inhibited yarn in which longitudinal and lateral yarns are woven. Laminating the woven fabric, setting it in the shoe sole forming mold, applying heat and pressure, vulcanizing the outer sole, the midsole and the non-stretch woven fabric and foaming the midsole at the same time Things.
【０００７】本発明の靴底に使用する縦方向の糸と横方
向の糸を織り込んだ伸び止め織布は、充実未加硫ゴムと
発泡性未加硫ゴムとを加硫により一体成形すると、靴底
の発泡ゴムが靴底の長手方向及び短手方向に伸びること
により靴底が反り変形するのを防止するためのものであ
る。前記伸び止め織布は、発泡ゴムの上面に配置されて
もよく、また、発泡ゴムの中に挿入されていてもよい。
前記伸び止め織布は、織り密度が密になると発泡ゴムと
の接着力が低下するので、組織の粗いものがよく、経糸
５０本／インチ以下であり、緯糸が５０本／インチ以下
である織り密度よりなる平織織布を用いたほうがよい。The stretch-inhibited woven fabric used in the shoe sole of the present invention, in which longitudinal yarns and transverse yarns are woven, is obtained by integrally molding solid unvulcanized rubber and foamable unvulcanized rubber by vulcanization. This is for preventing the shoe sole from warping and deforming due to the foam rubber of the shoe sole extending in the longitudinal direction and the lateral direction of the shoe sole. The stretch-resistant woven fabric may be disposed on the upper surface of the foamed rubber, or may be inserted into the foamed rubber.
As the stretch-resistant woven fabric has a low weaving density, the adhesive force with the foamed rubber is reduced. Therefore, a woven fabric having a coarse structure is preferably used, and the warp is 50 yarns / inch or less and the weft is 50 yarns / inch or less. It is better to use a plain woven cloth having the same density.
【０００８】上記平織布に用いる糸は、撚り糸またはフ
ィラメント糸何れでもよいが、撚り糸のほうが、ゴムと
の接着性がよい。糸の材質は、綿糸、スフ糸、ナイロン
糸、ポリエステル糸等が用いられる。上記織り密度に該
当する平織布は、ダック５号、ダック１８号、ダック６
６号、ダック８３号、粗布２５号、粗布２７号、粗布４
６号、粗布５８号、帆布９号、帆布１０号、帆布１１
号、ポンジ８３号、ポンジ８６号、ポンジ６６号、寒冷
紗等の中より選ばれる。The yarn used for the plain woven fabric may be a twisted yarn or a filament yarn, but the twisted yarn has better adhesiveness to rubber. As the material of the yarn, a cotton yarn, a staple yarn, a nylon yarn, a polyester yarn or the like is used. The plain woven cloth corresponding to the above weaving density is Duck No. 5, Duck No. 18, Duck No. 6.
No. 6, No. 83, No. 25, No. 27, No. 4
6, No. 58, No. 9, No. 10, No. 11
, No. 83, No. 86, No. 66, cold gauze and the like.
【０００９】本発明の充実ゴムに使用するゴム生地は、
天然ゴム、イソプレンゴム、ブタジエンゴム、スチレン
ブタジエンゴム、ハイスチレンゴム、アクリロニトリル
ゴム、クロロプレンゴム、エチレンプロピレンゴムの一
種または二種以上の混合物を主成分とし、これに加硫
剤、加硫助剤、加硫促進剤、充填剤、顔料、安定剤等の
ゴム配合薬品を添加したものである。The rubber material used for the solid rubber of the present invention is:
Natural rubber, isoprene rubber, butadiene rubber, styrene butadiene rubber, high styrene rubber, acrylonitrile rubber, chloroprene rubber, a mixture of one or more of ethylene propylene rubber as a main component, a vulcanizing agent, vulcanization aid, It contains rubber compounding chemicals such as vulcanization accelerators, fillers, pigments and stabilizers.
【００１０】本発明の発泡ゴムに使用するゴム生地は、
天然ゴム、イソプレンゴム、ブタジエンゴム、スチレン
ブタジエンゴム、ハイスチレンゴム、アクリロニトリル
ゴム、クロロプレンゴム、エチレンプロピレンゴムの一
種または二種以上の混合物を主成分とし、これに加硫
剤、加硫助剤、加硫促進剤、充填剤、顔料、安定剤等の
ゴム配合薬品と、発泡剤を添加したものである。The rubber fabric used for the foamed rubber of the present invention is
Natural rubber, isoprene rubber, butadiene rubber, styrene butadiene rubber, high styrene rubber, acrylonitrile rubber, chloroprene rubber, a mixture of one or more of ethylene propylene rubber as a main component, a vulcanizing agent, vulcanization aid, A rubber compounding agent such as a vulcanization accelerator, a filler, a pigment and a stabilizer, and a foaming agent are added.
【００１１】本発明の靴底の製法において、外底成形用
未加硫ゴム生地は、上記充実ゴムに使用するゴム生地を
２〜５mmの厚みにシーティングし、外底形状に裁断した
ものを使用する。合中底成形用発泡性未加硫ゴム生地
は、上記発泡ゴムに使用するゴム生地をシーティング
し、外底形状に裁断したものを使用する。発泡ゴムの比
重は０．４〜０．９になるように設定されるのが好まし
い。In the method for manufacturing a shoe sole according to the present invention, the unvulcanized rubber material for forming the outer sole is obtained by sheeting the rubber material used for the above-mentioned solid rubber to a thickness of 2 to 5 mm and cutting it into an outer sole shape. I do. As the foamable unvulcanized rubber fabric for forming the bottom in the middle, the rubber fabric used for the foamed rubber is sheeted and cut into an outer bottom shape. The specific gravity of the foamed rubber is preferably set to be 0.4 to 0.9.
【００１２】靴底の成形は、前記外底成形用未加硫ゴム
生地と、前記合中底成形用発泡性未加硫ゴム生地と、縦
方向の糸と横方向の糸を織り込んだ伸び止め織布とを重
ねて、靴底成形型にセットし加熱加圧して、外底と合中
底と伸び止め織布を加硫一体化すると同時に合中底を発
泡させることにより完成する。加硫条件は、靴底成形型
の加熱温度が１４０〜１６０℃でプレス圧８０〜１００
kgf/cm2 ，時間６〜１０分である。[0012] The sole of the shoe is formed by a non-vulcanized rubber material for forming the outer sole, a foamable unvulcanized rubber material for forming the midsole, a stretch-inhibited yarn woven with longitudinal yarns and transverse yarns. The woven fabric is overlaid, set in a shoe sole forming mold, heated and pressurized, and the outer sole, the midsole and the non-stretch woven fabric are vulcanized and integrated, and at the same time, the midsole is foamed to complete. The vulcanization conditions are as follows: the heating temperature of the shoe sole mold is 140 to 160 ° C. and the pressing pressure is 80 to 100.
kgf / cm 2 , time 6-10 minutes.
【００１３】[0013]
【作用】本発明の靴底は、縦方向の糸と横方向の糸を織
り込んだ伸び止め織布と、発泡ゴムと、充実ゴムとが積
層され一体成形されているので、縦方向の糸と横方向の
糸を織り込んだ伸び止め織り布の効果により成型後の靴
底において発泡ゴムの変形による靴底の反りを防止する
ことができる。又、本発明の靴底の製法によれば、従来
製法のように前もって発泡ゴムと充実ゴムを成形する工
程や、その後の発泡ゴムと充実ゴムを接着させる工程が
不要となり、工程を大幅に短縮することができる。ま
た、発泡ゴムを成形する際の鋤きや荒裁断の工程も不要
となる。The sole of the present invention is formed by laminating a non-stretch woven fabric in which a longitudinal thread and a lateral thread are woven, a foamed rubber, and a solid rubber to be integrally formed. The warp of the shoe sole due to the deformation of the foamed rubber in the shoe sole after molding can be prevented by the effect of the non-stretch woven fabric in which the transverse yarns are woven. In addition, according to the method for manufacturing a shoe sole of the present invention, there is no need for a step of molding foamed rubber and solid rubber in advance and a step of bonding the foamed rubber and solid rubber in advance, unlike the conventional manufacturing method, and the process is greatly reduced. can do. In addition, a step of plowing or rough cutting when molding the foamed rubber is not required.
【００１４】[0014]
１．外底成形用未加硫ゴムシート部品の作成 1. Production of unvulcanized rubber sheet parts for outer bottom molding
【表１】 [Table 1]
【００１５】表１に示す配合に従い外底成形用未加硫ゴ
ム生地を混練し、厚さ３mmのシートに圧延した後、外底
形状の部品に裁断した。According to the composition shown in Table 1, the unvulcanized rubber base material for forming the outer bottom was kneaded, rolled into a sheet having a thickness of 3 mm, and cut into parts having an outer bottom shape.
【００１６】２．合中底成形用発泡性未加硫ゴムシート
部品の作成2. Production of foamable unvulcanized rubber sheet parts for midsole molding
【表２】 [Table 2]
【００１７】次に表２に示す配合に従い合中底成形用発
泡性未加硫ゴム生地を混練し、厚さ５mmのシートに圧延
した後、外底形状の部品に裁断した。Next, foamable unvulcanized rubber base material for mid-sole molding was kneaded according to the composition shown in Table 2, rolled into a sheet having a thickness of 5 mm, and cut into parts having an outer bottom shape.
【００１８】３．伸び止め織布の準備 実施例に使用する伸び止め織布には、組織が（スフ３０
／１×スフ３０／１）／（３８×２５）の寒冷紗を使用
する。この寒冷紗は経糸が３８本／インチであり、緯糸
が２５本／インチである織り密度を有する平織織布であ
る。3. Preparation of Stretch-Resistant Woven Fabric The stretch-resistant woven fabric used in the examples has a tissue
A cold gauze of (1/1 × 30/30) / (38 × 25) is used. This cold gauze is a plain woven fabric having a weaving density of 38 warps / inch and 25 wefts / inch.
【００１９】４．靴底の加硫成形 図３に示す靴底成形型の下型凹部に、外底成形用未加硫
ゴム部品と合中底成形用発泡性未加硫ゴムシート部品と
寒冷紗を載置し、上型で密閉した後、プレス機にセット
し、加熱温度１５５℃，圧力８０kgf/cm2 ，時間８分間
でプレス加硫を行った。合中底の成形後の比重は０．７
であった。そして成形後の靴底は、変形等なく、見栄え
の良いものであった。4. Vulcanization Molding of Sole A non-vulcanized rubber part for forming the outer sole, a foamable unvulcanized rubber sheet part for forming the middle sole, and a cold gauze are placed in the lower mold recess shown in FIG. After sealing with an upper mold, it was set in a press machine, and press vulcanization was performed at a heating temperature of 155 ° C., a pressure of 80 kgf / cm 2 and a time of 8 minutes. The specific gravity after molding of the insole is 0.7
Met. Then, the shoe sole after molding had a good appearance without deformation.
【００２０】[0020]
【発明の効果】本発明の靴底は、縦方向の糸と横方向の
糸を織り込んだ伸び止め織布と、発泡ゴムと、充実ゴム
とが積層され一体成形されているので、発泡ゴムの変形
を防止することができ、外観の優れた靴底を得ることが
できる。The sole of the present invention is formed by laminating a non-stretch woven fabric in which longitudinal yarns and lateral yarns are woven, foamed rubber and solid rubber, and is integrally formed. Deformation can be prevented, and a shoe sole with excellent appearance can be obtained.
【００２１】又、本発明の靴底の製法によれば、発泡ゴ
ムと充実ゴムとが一体成形されているので、工程数が大
幅に少なくなり効率よく靴底を製造することができる。Further, according to the method of manufacturing a shoe sole of the present invention, since the foamed rubber and the solid rubber are integrally formed, the number of steps is greatly reduced, and the shoe sole can be manufactured efficiently.
【図１】本発明の実施例の靴底の斜視図。FIG. 1 is a perspective view of a shoe sole according to an embodiment of the present invention.
【図２】本発明の別の実施例の靴底の断面図。FIG. 2 is a sectional view of a shoe sole according to another embodiment of the present invention.
【図３】図１のＡ−Ａ線断面図。FIG. 3 is a sectional view taken along line AA of FIG. 1;
【図４】従来の靴底の断面図。FIG. 4 is a sectional view of a conventional shoe sole.
【図５】本発明の靴底を成形するための靴底成形型の平
面図と断面図。FIG. 5 is a plan view and a cross-sectional view of a shoe sole forming die for forming a shoe sole according to the present invention.
１ 靴底 ２ 伸び止め織布 ３ 発泡ゴム ４ 充実ゴム ５ 接着剤層 ６ 靴底成形型 ７ 上型 ８ 下型 DESCRIPTION OF SYMBOLS 1 Sole 2 Stretch resistant woven fabric 3 Foam rubber 4 Solid rubber 5 Adhesive layer 6 Sole mold 7 Upper mold 8 Lower mold
Claims (4)
び止め織布と、発泡ゴムと、充実ゴムとが積層され一体
成形されていることを特徴とする靴底。1. A shoe sole characterized in that a non-stretch woven fabric in which a longitudinal thread and a transverse thread are woven, a foamed rubber, and a solid rubber are laminated and integrally formed.
び止め織布と、加硫剤を含む発泡ゴムと、加硫剤を含む
充実ゴムとが順次積層され加熱一体成形されていること
を特徴とする請求項１記載の靴底。2. A stretch-resistant woven fabric in which longitudinal yarns and transverse yarns are woven, foamed rubber containing a vulcanizing agent, and solid rubber containing a vulcanizing agent are sequentially laminated and integrally molded by heating. The shoe sole according to claim 1, wherein:
糸５０本／インチ以下であり、緯糸が５０本／インチ以
下である織り密度よりなることを特徴とする請求項１ま
たは請求項２記載の靴底。3. The stretch-resistant woven fabric is a plain woven fabric, and has a weave density of not more than 50 warps / inch and not more than 50 wefts / inch. 2. The shoe sole according to 2.
形用発泡性未加硫ゴム生地と、縦方向の糸と横方向の糸
を織り込んだ伸び止め織布とを重ねて、靴底成形型にセ
ットし、加熱加圧して、加硫一体化すると同時に合中底
を発泡することを特徴とする靴底の製法。4. An unvulcanized rubber fabric for forming an outer bottom, a foamable unvulcanized rubber fabric for forming a middle bottom, and a stretch-resistant woven fabric in which longitudinal yarns and transverse yarns are woven. A method of manufacturing a shoe sole, wherein the shoe sole is set in a shoe sole forming mold, heated and pressurized, vulcanized and integrated, and simultaneously the foamed sole is foamed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20088197A JPH1128103A (en) | 1997-07-09 | 1997-07-09 | Sole and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20088197A JPH1128103A (en) | 1997-07-09 | 1997-07-09 | Sole and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1128103A true JPH1128103A (en) | 1999-02-02 |
Family
ID=16431800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20088197A Pending JPH1128103A (en) | 1997-07-09 | 1997-07-09 | Sole and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1128103A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990046549A (en) * | 1999-03-24 | 1999-07-05 | 추대진 | Manufacture method of footwear in-sole |
| JP2014521472A (en) * | 2011-08-10 | 2014-08-28 | ガヴリエリ ブランズ，エルエルシー | Split sole footwear |
| CN114801372A (en) * | 2022-05-16 | 2022-07-29 | 安踏（中国）有限公司 | Photochromic multifunctional rubber outsole and preparation method thereof |
| CN115413856A (en) * | 2016-07-20 | 2022-12-02 | 耐克创新有限合伙公司 | Shoe plate |
-
1997
- 1997-07-09 JP JP20088197A patent/JPH1128103A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990046549A (en) * | 1999-03-24 | 1999-07-05 | 추대진 | Manufacture method of footwear in-sole |
| JP2014521472A (en) * | 2011-08-10 | 2014-08-28 | ガヴリエリ ブランズ，エルエルシー | Split sole footwear |
| CN115413856A (en) * | 2016-07-20 | 2022-12-02 | 耐克创新有限合伙公司 | Shoe plate |
| CN114801372A (en) * | 2022-05-16 | 2022-07-29 | 安踏（中国）有限公司 | Photochromic multifunctional rubber outsole and preparation method thereof |
| CN114801372B (en) * | 2022-05-16 | 2023-11-21 | 安踏（中国）有限公司 | Photochromic multifunctional rubber outsole and preparation method thereof |
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