JPH0691845B2 - A method for molding wear-resistant multicolor soles - Google Patents
A method for molding wear-resistant multicolor solesInfo
- Publication number
- JPH0691845B2 JPH0691845B2 JP3044418A JP4441891A JPH0691845B2 JP H0691845 B2 JPH0691845 B2 JP H0691845B2 JP 3044418 A JP3044418 A JP 3044418A JP 4441891 A JP4441891 A JP 4441891A JP H0691845 B2 JPH0691845 B2 JP H0691845B2
- Authority
- JP
- Japan
- Prior art keywords
- unvulcanized rubber
- rubber
- pieces
- sheet
- unvulcanized
- 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.)
- Expired - Lifetime
Links
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は耐摩耗性の多色靴底の
成形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 method of molding a wear-resistant multicolor sole.
【０００２】[0002]
【従来の技術】従来、実公昭３４−１８６４８号によっ
て、適宜の色彩を有する小塊状のゴム生地を数種無定形
に混合して、これを成形型で加熱加圧して多色模様を有
する履物底を成形する方法が提案されている。しかしな
がら、異色のゴム生地を無定形に混合したものを成形型
で加熱加圧するために、加熱加圧時に異色のゴム小塊が
相互に流動して融合するため、その境界が不鮮明で色彩
的にぼけた靴底しか得られなかった。特に成形される靴
底の肉厚が５ｍｍ以下の薄底の場合、この欠点が甚しか
った。2. Description of the Related Art Conventionally, according to Japanese Utility Model Publication No. 34-18648, footwear having a multicolored pattern is prepared by mixing several kinds of small-sized rubber cloths having an appropriate color in an amorphous form and heating and pressing the mixture with a molding die. A method of shaping the bottom has been proposed. However, in order to heat and press a mixture of differently colored rubber fabrics in an amorphous shape with a molding die, small rubber blocks of different colors flow and fuse with each other at the time of heating and pressing, so that the boundaries are unclear and color I only got a blurred sole. Especially, when the shoe sole to be molded has a thin wall thickness of 5 mm or less, this defect was serious.
【０００３】[0003]
【発明が解決しようとする課題】この発明は、接地面に
境界が鮮明で色彩的にランダムな配置の意匠を有する耐
摩耗性の多色靴底を簡単な方法によって提供しようとす
るものである。SUMMARY OF THE INVENTION The present invention is intended to provide, by a simple method, a wear-resistant multicolor sole having a design in which a boundary is sharp on the ground contact surface and which is randomly arranged in color. .
【０００４】[0004]
【課題を解決するための手段】以下この発明の実施状態
を示す図面によって説明すれば、この発明はジエン系ゴ
ムとポリノルボネンポリマ−の混合物を主成分として、
これを着色成形した薄肉なシ−ト状の未加硫ゴム小片１
１．１１…を成形型２の底面にランダムにばらまき載置
し、さらにその上に未加硫ゴム小片１１．１１…とは異
色で、これより厚肉なジエン系ゴム製の未加硫ゴムシ−
ト１２を被覆載置して加熱加圧し、未加硫ゴム小片１
１．１１…と未加硫ゴムシ−ト１２とを加硫一体化する
ことを特徴とする耐摩耗性の多色靴底の成形法を発明の
要旨とするものである。The present invention will be described below with reference to the drawings showing an embodiment of the present invention. The present invention contains a mixture of a diene rubber and a polynorbornene polymer as a main component,
Thin sheet-shaped unvulcanized rubber piece 1 formed by coloring this
1.11 ... are randomly scattered and placed on the bottom surface of the mold 2, and the unvulcanized rubber sheet made of diene rubber having a thickness different from that of the unvulcanized rubber pieces 11.11. −
The unvulcanized rubber small piece 1
SUMMARY OF THE INVENTION The present invention is directed to a method for molding a wear-resistant multicolor shoe sole, characterized in that 1.11 ... and an unvulcanized rubber sheet 12 are integrally vulcanized.
【０００５】この発明において使用されるポリノルボネ
ンポリマ−は、エチレンとシクロペンタジエンからディ
−ルス・アルダ−反応によってノルボネンを合成し、こ
れを開環重合して得られる分子量が２００万以上のポリ
マ−である。このポリノルボネンポリマ−を天然ゴム、
ポリブタジエンゴム、ポリイソプレンゴム、アクリロニ
トリルブタジエンゴム等のジエンゴムに添加した混合物
を主成分とし、これに常用のゴム配合薬品を添加して得
られる未加硫ゴムは、優れたグリ−ンストレングスを有
し、さらにこの未加硫ゴムを加硫して得られたゴムは先
に出願人が特願平１−２８４６０９号で提案したように
優れた耐摩耗性を有するものである。そしてこの発明に
おいて、薄肉なシ−ト状の未加硫ゴム小片１１．１１…
は、上記のジエン系ゴムとポリノルボネンポリマ−の混
合物に、さらに常用のゴム配合薬品を添加したものを任
意に着色し、これをロ−ル等で圧延生地出しし、これを
三角形状、四角形状等の多角形状、円形状、楕円形状等
に裁断して準備される。そしてこの発明において未加硫
ゴム小片１１．１１…の肉厚は、その上に被覆載置され
る未加硫ゴムシ−ト１２の肉厚のほぼ１／５〜２／３
に、具体的には０．５ｍｍ〜３ｍｍ厚に形成されること
が望ましい。厚みがそれ以下となれば、加熱加圧時に成
形型２の底面より浮動し易くなり、また肉厚がそれ以上
となれば、加熱加圧の初期における未加硫ゴム小片１
１．１１…の加硫進行が遅延し、未加硫ゴム小片１１．
１１…と未加硫ゴムシ−ト１２がその境界において相互
にはみ出したり流動しあったりし、色彩的に外観が低下
するきらいがある。そしてこれらの未加硫ゴム小片１
１．１１…は、複数形状のものを複数色準備し、これら
を適宜組み合わせて使用することもできる。さらに未加
硫ゴム小片１１．１１…は、成形される靴底の用途に応
じて、滑り止めのための防滑性配合、軽量化のための発
泡性配合等適宜に選定されることができる。例えば、防
滑性配合の場合、その配合物中にガラス繊維、岩綿、ロ
ックウ−ル、石英繊維、シリカ繊維、ワラストナイト繊
維、セラミックス繊維等の無機質繊維、金属繊維、炭素
質繊維の一種または２種以上の混合物を添加したり、そ
の上に載置される未加硫ゴムシ−ト１２よりも硬質配合
にすることにより、この未加硫ゴム小片１１．１１…に
よって靴底の接地面に形成される異色意匠部１１’．１
１’…で靴底の防滑性を図ることができる。The polynorbornene polymer used in the present invention has a molecular weight of not less than 2,000,000 obtained by synthesizing norbornene from ethylene and cyclopentadiene by a Diels-Alder reaction and ring-opening polymerization thereof. It is a polymer. This polynorbornene polymer is a natural rubber,
An unvulcanized rubber obtained by adding a mixture of a diene rubber such as polybutadiene rubber, polyisoprene rubber, and acrylonitrile butadiene rubber to a diene rubber as a main component and adding a usual rubber compounding agent to the mixture has excellent green strength. Further, the rubber obtained by vulcanizing this unvulcanized rubber has excellent abrasion resistance as previously proposed by the applicant in Japanese Patent Application No. 1-284609. In the present invention, thin sheet-like unvulcanized rubber pieces 11.11 ...
Is a mixture of the above-mentioned diene rubber and polynorbornene polymer, which is optionally colored by adding a commonly used rubber compounding chemical, rolls it out with a roll or the like, and forms it into a triangular shape. It is prepared by cutting into a polygonal shape such as a quadrilateral shape, a circular shape, an elliptical shape, or the like. In the present invention, the wall thickness of the unvulcanized rubber pieces 11.11 ... Is approximately ⅕ to 2/3 of the wall thickness of the unvulcanized rubber sheet 12 coated and placed thereon.
Specifically, it is desirable that the thickness be 0.5 mm to 3 mm. If the thickness is less than that, it tends to float from the bottom surface of the molding die 2 during heating and pressurization, and if the thickness is more than that, the unvulcanized rubber small piece 1 at the initial stage of heating and pressurization.
The vulcanization progress of 1.11 ... is delayed, and unvulcanized rubber small pieces 11.
11 and the unvulcanized rubber sheet 12 stick out or flow to each other at the boundary, and there is a tendency that the appearance is deteriorated in terms of color. And these unvulcanized rubber pieces 1
1.11 ... can also be used by preparing a plurality of colors having a plurality of shapes and appropriately combining these. Further, the unvulcanized rubber pieces 11.11 ... Can be appropriately selected according to the use of the molded sole, such as anti-slip compounding for anti-slip and foaming compounding for weight reduction. For example, in the case of anti-slip compounding, one of glass fibers, rock wool, rock wool, quartz fibers, inorganic fibers such as silica fibers, wollastonite fibers, ceramics fibers, metal fibers, carbonaceous fibers or By adding a mixture of two or more kinds, or by making the composition harder than the unvulcanized rubber sheet 12 placed thereon, the unvulcanized rubber pieces 11.11 ... Different color design portion 11 '. 1
With 1 '..., the slip resistance of the shoe sole can be improved.
【０００６】この発明において使用される未加硫ゴムシ
−ト１２は、天然ゴム、スチレンブタジエンゴム、ポリ
ブタジエンゴム、ポリイソプレンゴム、アクリロニトリ
ルブタジエンゴム等のジエン系ゴムを主成分とし、さら
に常用のゴム配合薬品を添加したものを未加硫ゴム小片
１１．１１…とは異色に着色し、これをロ−ル等で１．
０ｍｍ〜１０ｍｍ厚に圧延成形したものを靴底形状に打
抜き裁断して準備される。そしてこの未加硫ゴムシ−ト
１２を発泡性配合にしておけば、靴底の加熱加圧成形時
に発泡させることにより靴底の軽量化を図ることができ
る。さらに必要により、この未加硫ゴムシ−ト１２を貫
通して多数の孔を貫通形成しておくことによって、成形
型２の底面に載置された未加硫ゴム小片１１．１１…間
に介在された空気を、この上に被覆された未加硫ゴムシ
−ト１２の孔を通して、加熱加圧の初期に未加硫ゴムシ
−ト１２の上面に排出させながら未加硫ゴム小片１１．
１１…と未加硫ゴムシ−ト１２を積層一体化すれば、成
形時に未加硫ゴム小片１１．１１…と未加硫ゴムシ−ト
１２間に空気が介在されることなく積層（接着）強度を
強力なものとすることができる。The unvulcanized rubber sheet 12 used in the present invention is mainly composed of a diene rubber such as natural rubber, styrene butadiene rubber, polybutadiene rubber, polyisoprene rubber, acrylonitrile butadiene rubber, etc. The one to which the chemical was added was colored differently from the unvulcanized rubber pieces 11.11 ...
It is prepared by punching and rolling a shoe-rolled product having a thickness of 0 mm to 10 mm. If the unvulcanized rubber sheet 12 has a foaming composition, the weight of the shoe sole can be reduced by foaming the shoe sole at the time of heat and pressure molding. Further, if necessary, a large number of holes are formed by penetrating the unvulcanized rubber sheet 12 so that the unvulcanized rubber small pieces 11.11 placed on the bottom surface of the molding die 2 are interposed. The unvulcanized rubber small pieces 11. are discharged to the upper surface of the unvulcanized rubber sheet 12 through the holes of the unvulcanized rubber sheet 12 covered therewith at the initial stage of heating and pressurization.
11 and the unvulcanized rubber sheet 12 are laminated and integrated, the laminated (adhesive) strength without air between the unvulcanized rubber piece 11.11 and the unvulcanized rubber sheet 12 during molding. Can be powerful.
【０００７】このようにして準備された未加硫ゴム小片
１１．１１…を成形型２の底面にランダムにばらまき載
置し、その上に未加硫ゴム小片よりも厚肉に形成された
未加硫ゴムシ−ト１２を被覆載置して、上型３によって
加圧して加熱し、未加硫ゴム小片１１．１１…と未加硫
ゴムシ−ト１２とを加硫して積層一体化するものである
が、加熱加圧の初期において、成形型２の底面に載置さ
れた未加硫ゴム小片１１．１１…は、ジエン系ゴムとポ
リノルボネンポリマ−の混合物を主成分として形成され
ているため、グリ−ンストレングスが大で流動性が制限
されしかも未加硫ゴム小片１１．１１…は、未加硫ゴム
シ−ト１２よりも薄肉なシ−トで形成されているため、
未加硫ゴムシ−ト１２の加硫に先だって加硫が促進さ
れ、加圧による流動性が制限される。従って加熱加圧時
に、未加硫ゴムシ−ト１２と未加硫ゴム小片１１．１１
…との相互間の流動が制限され、未加硫ゴム小片１１．
１１…を成形型２の底面にランダムに載置した状態に近
い配置で、未加硫ゴムシ−ト１２で形成される靴底主体
１２’の接地面に、未加硫ゴム小片１１．１１…によっ
て形成される異色意匠部１１’．１１’…を鮮明に表現
できる。また異色の意匠部１１’．１１’…は、耐摩耗
性の配合であるため耐摩耗性に優れた多色靴底が得られ
る。The unvulcanized rubber pieces 11.11 prepared in this manner are randomly scattered and placed on the bottom surface of the mold 2, and the unvulcanized rubber pieces 11.1 formed thicker than the unvulcanized rubber pieces are placed thereon. The vulcanized rubber sheet 12 is placed on the cover, heated by being pressed by the upper mold 3, and the unvulcanized rubber pieces 11.11 ... And the unvulcanized rubber sheet 12 are vulcanized to be laminated and integrated. However, in the initial stage of heating and pressing, the unvulcanized rubber pieces 11.11 placed on the bottom surface of the molding die 2 are formed with a mixture of a diene rubber and a polynorbornene polymer as a main component. Therefore, since the green strength is large and the fluidity is limited, and the unvulcanized rubber small pieces 11.11 are formed with a sheet thinner than the unvulcanized rubber sheet 12,
Vulcanization is promoted prior to vulcanization of the unvulcanized rubber sheet 12, and the fluidity due to pressure is limited. Therefore, at the time of heating and pressurization, the unvulcanized rubber sheet 12 and the unvulcanized rubber small piece 11.11.
The flow between and ... is restricted, and unvulcanized rubber pieces 11.
11 are arranged on the bottom surface of the mold 2 at random, and the unvulcanized rubber small pieces 11.11 are arranged on the grounding surface of the shoe sole main body 12 'formed of the unvulcanized rubber sheet 12. Different color design portion 11 '. 11 '... can be clearly expressed. In addition, the design section 11 '. 11 '... is a wear resistant compound, so that a multicolor sole having excellent wear resistance can be obtained.
【０００８】[0008]
【発明の効果】この発明は以上のように形成されている
ので、簡単に接地面に境界が鮮明で色彩的に任意な配置
の意匠を有する多色靴底が得られる。EFFECTS OF THE INVENTION Since the present invention is formed as described above, it is possible to easily obtain a multicolor shoe sole having a design with a sharp boundary on the ground contact surface and an arbitrary color arrangement.
【図１】この発明の実施状態を示す要部断面図である。FIG. 1 is a sectional view of an essential part showing an embodiment of the present invention.
１１．未加硫ゴム小片 １１’．異色
意匠部 １２．未加硫ゴムシ−ト １２’．靴底
主体 ２．成形型 ３． 上型11. Unvulcanized rubber small piece 11 '. Unique design department 12. Unvulcanized rubber sheet 12 '. Mainly soles 2. Mold 3. Upper mold
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｋ 9:00 Ｂ２９Ｌ 9:00 31:50 4Ｆ ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location // B29K 9:00 B29L 9:00 31:50 4F
Claims (1)
の混合物を主成分として、これを着色成形した薄肉なシ
−ト状の未加硫ゴム小片１１．１１…を成形型２の底面
にランダムにばらまき載置し、さらにその上に未加硫ゴ
ム小片１１．１１…とは異色で、これより厚肉なジエン
系ゴム製の未加硫ゴムシ−ト１２を被覆載置して加熱加
圧し、未加硫ゴム小片１１．１１…と未加硫ゴムシ−ト
１２とを加硫一体化することを特徴とする耐摩耗性の多
色靴底の成形法。1. A diene rubber and a polynorbornene polymer.
Of the mixture is used as a main component, and thin sheet-shaped unvulcanized rubber small-pieces 11.11, which are colored and molded, are randomly scattered and placed on the bottom surface of the mold 2, and the unvulcanized rubber is further placed thereon. Different from the small pieces 11.11 ..., the unvulcanized rubber sheet 12 made of a thicker diene rubber than the small pieces 11.11 ... is placed on the coating and heated and pressed to form the unvulcanized rubber small pieces 11.11. A method for molding a wear-resistant multicolor shoe sole, which comprises integrally vulcanizing a rubber sheet 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3044418A JPH0691845B2 (en) | 1991-02-15 | 1991-02-15 | A method for molding wear-resistant multicolor soles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3044418A JPH0691845B2 (en) | 1991-02-15 | 1991-02-15 | A method for molding wear-resistant multicolor soles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04261603A JPH04261603A (en) | 1992-09-17 |
| JPH0691845B2 true JPH0691845B2 (en) | 1994-11-16 |
Family
ID=12690948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3044418A Expired - Lifetime JPH0691845B2 (en) | 1991-02-15 | 1991-02-15 | A method for molding wear-resistant multicolor soles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0691845B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100328508B1 (en) * | 1999-02-13 | 2002-03-16 | 오판원 | Multicolor and pattern shoe sole manufacturing method |
| FR2795924B1 (en) * | 1999-07-05 | 2002-01-11 | Oxypas | SOLE WITH WEAR |
| KR20020070420A (en) * | 2002-08-28 | 2002-09-09 | 이동락 | manufacturing method of shoe-soles which have different colors mixed |
| CN100417516C (en) * | 2002-09-24 | 2008-09-10 | 郑添来 | Manufacturing method and products for colored undersole |
-
1991
- 1991-02-15 JP JP3044418A patent/JPH0691845B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04261603A (en) | 1992-09-17 |
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