JPS6235388B2 - - Google Patents
Info
- Publication number
- JPS6235388B2 JPS6235388B2 JP56136092A JP13609281A JPS6235388B2 JP S6235388 B2 JPS6235388 B2 JP S6235388B2 JP 56136092 A JP56136092 A JP 56136092A JP 13609281 A JP13609281 A JP 13609281A JP S6235388 B2 JPS6235388 B2 JP S6235388B2
- Authority
- JP
- Japan
- Prior art keywords
- bladder
- rubber
- tire
- drum
- tire molding
- 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
Links
- 229920001971 elastomer Polymers 0.000 claims description 32
- 239000005060 rubber Substances 0.000 claims description 32
- 238000000465 moulding Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 17
- 150000002896 organic halogen compounds Chemical class 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 229910052736 halogen Inorganic materials 0.000 claims description 7
- 150000002367 halogens Chemical class 0.000 claims 1
- 230000000694 effects Effects 0.000 description 12
- 239000002904 solvent Substances 0.000 description 10
- 239000004636 vulcanized rubber Substances 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 125000005843 halogen group Chemical group 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- YRIZYWQGELRKNT-UHFFFAOYSA-N 1,3,5-trichloro-1,3,5-triazinane-2,4,6-trione Chemical compound ClN1C(=O)N(Cl)C(=O)N(Cl)C1=O YRIZYWQGELRKNT-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920002379 silicone rubber Polymers 0.000 description 4
- 239000004945 silicone rubber Substances 0.000 description 4
- 229950009390 symclosene Drugs 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical compound BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000006082 mold release agent Substances 0.000 description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- 230000000181 anti-adherent effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- -1 carbon chloride Chemical class 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- CEJLBZWIKQJOAT-UHFFFAOYSA-N dichloroisocyanuric acid Chemical compound ClN1C(=O)NC(=O)N(Cl)C1=O CEJLBZWIKQJOAT-UHFFFAOYSA-N 0.000 description 1
- 125000002897 diene group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229960003750 ethyl chloride Drugs 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 230000001617 migratory effect Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/36—Expansion of tyres in a flat form, i.e. expansion to a toroidal shape independently of their building-up process, e.g. of tyres built by the flat-tyres method or by jointly covering two bead-rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/60—Releasing, lubricating or separating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
- B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/24—Drums
- B29D30/26—Accessories or details, e.g. membranes, transfer rings
- B29D2030/2635—Central bladder, e.g. elastic membrane, sleeve, envelope, diaphragm, which covers the central portion of the drum, e.g. covering the toroidally expandable rigid segments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
本発明はタイヤの成形方法に関し、詳しくはタ
イヤ成形機に付属する加硫ゴムからなるドラムブ
ラダー、ターンナツプブラダーまたはエキスパン
ドドラムカバー（以下、これらを総称してブラダ
ーという）とタイヤ用未加硫ゴムとの粘着防止の
ため、該ブラダー表面に分子中に
The present invention relates to a tire molding method, and more specifically to a drum bladder, turn-up bladder, or expandable drum cover (hereinafter collectively referred to as a bladder) made of vulcanized rubber attached to a tire molding machine, and an unvulcanized rubber drum cover for tires. To prevent adhesion with rubber, the bladder surface contains
【式】（Ｘ
はハロゲン）結合を有する有機ハロゲン化合物を
塗布したことを特徴とするタイヤの成形方法に関
する。
従来、加硫ゴムからなるブラダーとタイヤ成形
用の未加硫ゴムとの粘着防止にはブラダー表面に
ステアリン酸亜鉛、パラフイン、界面活性剤等の
粉体または液体の離型剤を塗布することが慣用的
に行なわれているが、タイヤを成形する毎に、あ
るいは数回の成形後に再塗布を必要とした。更に
これら離型剤はタイヤ用未加硫ゴムに付着するた
め、離型剤の種類と塗布量によつてはタイヤの品
質を低下させるという欠点を有していた。
この問題を解決する方法として実開昭51−
150270号にはブラダー表面にシリコーンゴム層を
設け、離型持続性の良好なブラダーを得る方法が
開示されているが、この場合には未加硫ゴムとの
離型持続性は向上するものの、加硫ゴムからなる
ブラダーとシリコーンゴム層との接着を十分に達
成する技術がないため、接着面からの剥離による
ブラダーの早期破壊が起こり、実用上、十分な耐
久性が得られない欠点がある。このブラダーの早
期破壊を改善する方法として、実開昭56−41629
号にはブラダー全体をシリコーンゴムで造る方法
が提案されているが、この場合にはシリコーンゴ
ムの本質的なゴム強度不足のため、依然としてブ
ラダーが早期に破壊するという欠点を有してい
る。
以上のごとく、タイヤ成形機を用いたタイヤの
成形方法において問題とされる加硫ゴムからなる
ブラダーとタイヤ用未加硫ゴムとの粘着を有効に
防止する方法は未だ得られていない。
本発明は、タイヤ成形機を用いたタイヤの成形
方法で従来問題とされていたタイヤ用未加硫ゴム
とドラムブラダー、ターンナツプブラダーまたは
エキスパンドドラムカバーとの粘着を防止すると
共に離型持続性を向上せしめたタイヤの成形方法
を提供することを目的とする。
本発明の前記目的は、分子中にThe present invention relates to a method for molding a tire characterized in that an organic halogen compound having a bond of the formula: (X is halogen) is coated. Conventionally, to prevent adhesion between a bladder made of vulcanized rubber and unvulcanized rubber for tire molding, powder or liquid mold release agents such as zinc stearate, paraffin, or surfactants have been applied to the bladder surface. Although conventionally practiced, it required reapplication each time a tire was molded, or after several molds. Furthermore, since these mold release agents adhere to unvulcanized rubber for tires, they have the disadvantage that, depending on the type of mold release agent and the amount applied, the quality of the tire may be degraded. As a way to solve this problem,
No. 150270 discloses a method of obtaining a bladder with good mold release durability by providing a silicone rubber layer on the bladder surface, but in this case, although the mold release durability from unvulcanized rubber is improved, Since there is no technology to achieve sufficient adhesion between the bladder made of vulcanized rubber and the silicone rubber layer, the bladder may be prematurely destroyed due to peeling from the adhesive surface, which has the drawback of not providing sufficient durability for practical use. . As a method to improve this early destruction of the bladder,
No. 2, a method was proposed in which the entire bladder was made of silicone rubber, but this still had the disadvantage that the bladder would break down prematurely due to the inherent lack of rubber strength of silicone rubber. As described above, a method for effectively preventing adhesion between a bladder made of vulcanized rubber and unvulcanized rubber for tires, which is a problem in tire molding methods using tire molding machines, has not yet been found. The present invention prevents adhesion between unvulcanized rubber for tires and drum bladders, turn-up bladders, or expandable drum covers, which has been a problem in the past in tire molding methods using tire molding machines, and improves mold release durability. The purpose of the present invention is to provide a tire molding method with improved performance. The object of the present invention is to
【式】結合
（Ｘはハロゲン）を有する有機ハロゲン化合物の
溶液を塗布することによつて達成される。
すなわち本発明は、タイヤ成形機を使用するタ
イヤの成形方法において、該タイヤ成形機に付属
するドラムブラダー、ターンナツプブラダーまた
はエキスパンドドラムカバー表面に、分子中に
This is accomplished by applying a solution of an organic halogen compound having a bond (X is halogen). That is, the present invention provides a tire molding method using a tire molding machine, in which molecules are added to the surface of a drum bladder, turn-up bladder, or expandable drum cover attached to the tire molding machine.
【式】結合（Ｘはハロゲン）を有する有機ハ
ロゲン化合物を塗布することによつてタイヤ用未
加硫ゴムとの粘着を防止したことを特徴とするタ
イヤの成形方法である。
本発明に使用する有機ハロゲン化合物は、分子
中にThis is a tire molding method characterized in that adhesion to unvulcanized rubber for tires is prevented by coating an organic halogen compound having a bond (X is a halogen). The organic halogen compound used in the present invention has a
【式】結合（Ｘはハロゲン）を有するこ
とが未加硫ゴムとの粘着防止の点から必要で、具
体的にはＮ−ブロムサクシイミドのようなハロゲ
ン化サクシイミド、トリクロロイソシアヌル酸、
ジクロロイソシアヌル酸のようなイソシアヌル酸
のハロゲン化物、ジクロロジメチルヒダントイン
のようなハロゲン化ヒダトイン等が例示される
が、イソシアヌル酸のハロゲン化物が特に好まし
い。
この有機ハロゲン化合物のブラダー表面への塗
布量はごく少量でも非粘着効果を有するが、好ま
しくは３〜15ｇ／m2であり、少量すぎると非粘着
効果が劣り、多量に塗布しても塗布効果はそれ以
上向上せずゴムが硬化し、屈曲疲労抵抗性が低下
し、ブラダーの寿命を低下させるので好ましくな
い。
この有機ハロゲン化合物はこれと反応しない溶
剤の溶液としてブラダー表面に塗布される。溶剤
としては、ベンゼン、キシレンのような芳香族炭
化水素類、ジエチルエーテル、ジオキサンおよび
テトラハイドロフランなどのエーテル類、酢酸エ
チルなどのエステル類、メチルエチルケトンおよ
びシクロヘキサノンなどのケトン類、塩化エチ
ル、クロロホルムおよび四塩化炭素などの塩素化
炭化水素類、第３級ブチルアルコールなどの第３
級アルコール類等の有機ハロゲン化合物と反応し
ない溶剤の少くとも１種以上が適宜用いられる。
溶液中の有機ハロゲン化合物濃度は溶剤に対する
溶解度および溶剤の沸点によつて異なるが、通
常、0.1〜20重量％、好ましくは0.5〜10重量％の
濃度が効率よくブラダーの非粘着効果を向上させ
る。あまり濃度が低いと作業効率が悪く、濃度が
高すぎると溶剤が乾燥するまでに有機ハロゲン化
合物とブラダーゴムとの反応が完結しない。
有機ハロゲン化合物の溶液はデイツプ、ハケま
たはスプレーでブラダー表面に塗布され、溶剤が
乾燥するまでの間に有機ハロゲン化合物はブラダ
ーを構成する加硫ゴムの二重結合部分と反応して
ブラダーの表面を非粘着化させる。従つてブラダ
ーゴムに使用されるポリマーは分子中に二重結合
を有するポリマーをポリマー100重量部に対し少
くとも５重量部以上含んでいることが必要で、こ
のようなポリマーとしては、例えば天然ゴム、合
成ポリイソプレンゴム、スチレン−ブタジエンゴ
ム、ポリブタジエンゴム、クロロプレンゴム、ニ
トリルブタジエンゴム、エチレン−プロピレン−
ジエン三元共重合体ゴムである。
次に本発明において使用するタイヤ成形機を用
いたタイヤ成形工程について図面に基づいて説明
する。
タイヤはその構造上から大別してラジアルタイ
ヤとバイアスタイヤに分類され、タイヤ成形機も
各々異なる。第１図は代表的なラジアルタイヤ用
成形機のセンターより上半部の断面図で、１はド
ラムブラダー、２はターンナツプブラダーであ
り、それぞれ加硫ゴムで構成されている。なお、
バイアスタイヤ成形機ではドラムブラダー１が金
属で構成されているか、金属でできた分割ドラム
の上にゴムカバーが取りつけられている。ターン
ナツプブラダー２はラジアルタイヤ成形機と同様
に加硫ゴムで構成されている。
最初にドラムブラダー１上に薄いゴムシート状
のインナーライナーゴム層３を張り、次いでカー
カスゴム層４を張り合わせる。次にドラムブラダ
ー１は第２図は示されるようにふくらまされ、同
時にビート５が接合される。次にターンナツプブ
ラダー２がふくらみカーカスゴム層４端がビード
５をつつむようにして折り返される。その後、タ
ーンナツプブラダー２は縮み第１図の状態に戻
る。依然としてふくらんだ状態になつているドラ
ムブラダー１上のカーカスゴム層４の上にさらに
ベルトゴム、トレツドゴム、サイドゴムの各層
（図示せず）が張り合され、最後にドラムブラダ
ー１は縮んだ状態になり未加硫タイヤが成形機よ
り外される。
この一連の工程の中で、ターンナツプブラダー
２がカーカスを折り返した後に縮む際、または成
形終了後、成形機から未加硫タイヤを取り外すた
めにドラムブラダー１が縮んだ際に、従来にあつ
てはブラダーとタイヤ用未加硫ゴムとの粘着によ
るはがれ不良から、変形や接合不良を起こし、作
業性を著しく阻害する。また、はなはだしい場合
にはこの段階でスクラツプになつてしまう。しか
し、本発明にあつては前述したように、有機ハロ
ゲン化合物の溶液をブラダー表面に塗布すること
によつてこのような問題は解決される。
以下、実施例および比較例に基づいて本発明を
具体的に説明する。
実施例１〜４および比較例１〜３
165 SR 13サイズのラジアラタイヤ成形機にお
いて第１表の配合によりなる加硫ゴムで構成され
たドラムブラダー表面（表面積3300cm2）に０〜５
重量％濃度のトリクロロイソシアヌル酸の酢酸エ
チル溶液、オレイン酸の５重量％イソプロピルア
ルコール液およびステアリン酸亜鉛の３重量％の
エチルアルコール懸濁液の各処理液をハケにてそ
れぞれ50ｇ塗布した。その後ドラムブラダー表面
を30分間風乾し溶剤を乾燥させタイヤを成形し
た。塗布効果の有効性と１回処理当たりの効果持
続性を目視して調べ結果を第２表に示した。なお
塗布効果の有効性は、成形終了後、ドラムブラダ
ーが縮んだ際にタイヤが変形せずスムースに剥れ
るものを（Ｏ）、変形し一部が密着するものを
（Ｘ）とした。また、１回処理当たりの効果持続
性は１回の塗布処理にて連続してタイヤ成形が行
なえた回数で示した。
また、同時にドラムブラダーとインナーライナ
ーゴムとの粘着力を測定するため、第１表のゴム
組成物を２mm厚のシートに加硫し（150℃×30
分）、これを前記の各処理液に30秒間浸漬し、次
いで60分間風乾して溶剤を乾燥させた。この処理
した加硫ゴムシートに２mm厚のインナーライナー
用未加硫ゴムシートと重ね、２Kg／cm2、20秒間、
30℃の条件でプレスにより荷重をかけたのち、１
インチ幅に切断し剥離試験機により100mm／分の
速度で剥離し粘着性を調べた。結果を第２表に示
す。[Formula] It is necessary to have a bond (X is a halogen) from the viewpoint of preventing adhesion with unvulcanized rubber, and specifically, halogenated succinimide such as N-bromsuccinimide, trichloroisocyanuric acid,
Examples include halides of isocyanuric acid such as dichloroisocyanuric acid, halogenated hydatoins such as dichlorodimethylhydantoin, and halides of isocyanuric acid are particularly preferred. The amount of this organic halogen compound applied to the bladder surface has a non-adhesive effect even if it is applied in a very small amount, but it is preferably 3 to 15 g/m 2 .If the amount is too small, the anti-adhesive effect will be poor, and even if it is applied in a large amount, the coating will not be effective. This is not preferable because the rubber is hardened without any further improvement, resulting in a decrease in flex fatigue resistance and a decrease in the life of the bladder. The organic halogen compound is applied to the bladder surface as a solution in a solvent that does not react with it. Solvents include aromatic hydrocarbons such as benzene and xylene, ethers such as diethyl ether, dioxane and tetrahydrofuran, esters such as ethyl acetate, ketones such as methyl ethyl ketone and cyclohexanone, ethyl chloride, chloroform and tetrahydrofuran. Chlorinated hydrocarbons such as carbon chloride, tertiary hydrocarbons such as tertiary butyl alcohol, etc.
At least one solvent that does not react with organic halogen compounds such as alcohols is appropriately used.
The concentration of the organic halogen compound in the solution varies depending on the solubility in the solvent and the boiling point of the solvent, but usually a concentration of 0.1 to 20% by weight, preferably 0.5 to 10% by weight efficiently improves the non-stick effect of the bladder. If the concentration is too low, the work efficiency will be poor, and if the concentration is too high, the reaction between the organic halogen compound and the bladder rubber will not be completed before the solvent dries. A solution of the organic halogen compound is applied to the surface of the bladder with a dip, brush, or spray, and while the solvent dries, the organic halogen compound reacts with the double bond part of the vulcanized rubber that makes up the bladder, and the surface of the bladder is coated. Make it non-adhesive. Therefore, the polymer used for bladder rubber must contain at least 5 parts by weight of a polymer having double bonds in the molecule based on 100 parts by weight of the polymer. Examples of such polymers include natural rubber, Synthetic polyisoprene rubber, styrene-butadiene rubber, polybutadiene rubber, chloroprene rubber, nitrile-butadiene rubber, ethylene-propylene-
It is a diene terpolymer rubber. Next, a tire molding process using the tire molding machine used in the present invention will be explained based on the drawings. Tires are broadly classified into radial tires and bias tires based on their structure, and the tire molding machines for each type are different. FIG. 1 is a sectional view of the upper half from the center of a typical radial tire molding machine, in which 1 is a drum bladder and 2 is a turn-up bladder, each of which is made of vulcanized rubber. In addition,
In a bias tire forming machine, the drum bladder 1 is made of metal, or a rubber cover is attached to a split drum made of metal. The turn nap bladder 2 is made of vulcanized rubber, similar to the radial tire molding machine. First, an inner liner rubber layer 3 in the form of a thin rubber sheet is applied onto the drum bladder 1, and then a carcass rubber layer 4 is applied. Next, the drum bladder 1 is inflated as shown in FIG. 2, and at the same time the beat 5 is joined. Next, the turn-up bladder 2 is inflated and the end of the carcass rubber layer 4 is folded back so as to wrap around the bead 5. Thereafter, the turn-up bladder 2 retracts and returns to the state shown in FIG. Belt rubber, tread rubber, and side rubber layers (not shown) are further laminated onto the carcass rubber layer 4 on the drum bladder 1, which is still in a swollen state, and finally the drum bladder 1 is in a shrunk state and unfilled. The sulfur tire is removed from the molding machine. During this series of processes, when the turn nap bladder 2 contracts after folding the carcass, or when the drum bladder 1 contracts to remove the unvulcanized tire from the molding machine after molding, the conventional In addition, poor peeling due to adhesion between the bladder and unvulcanized rubber for tires causes deformation and poor bonding, which significantly impedes workability. Also, if the situation is extreme, it may become a scrap at this stage. However, in the present invention, as described above, this problem is solved by applying a solution of an organic halogen compound to the bladder surface. The present invention will be specifically described below based on Examples and Comparative Examples. Examples 1 to 4 and Comparative Examples 1 to 3 In a 165 SR 13 size radial tire molding machine, 0 to 5 was applied to the surface of a drum bladder (surface area 3300 cm 2 ) made of vulcanized rubber having the formulation shown in Table 1.
50 g of each treatment solution of a wt % solution of trichloroisocyanuric acid in ethyl acetate, a 5 wt % solution of oleic acid in isopropyl alcohol, and a 3 wt % suspension of zinc stearate in ethyl alcohol was applied with a brush. Thereafter, the surface of the drum bladder was air-dried for 30 minutes to dry the solvent, and a tire was molded. The effectiveness of the application effect and the durability of the effect per treatment were visually observed and the results are shown in Table 2. The effectiveness of the coating effect was evaluated as (O) if the tire did not deform and could be peeled off smoothly when the drum bladder shrank after the completion of molding, and (X) if the tire deformed and partially adhered. Furthermore, the durability of the effect per treatment was expressed by the number of times that tire molding could be continuously performed in one application treatment. At the same time, in order to measure the adhesion between the drum bladder and the inner liner rubber, the rubber compositions shown in Table 1 were vulcanized into a 2 mm thick sheet (150°C x 30°C).
minutes), this was immersed in each of the above treatment solutions for 30 seconds, and then air-dried for 60 minutes to dry the solvent. This treated vulcanized rubber sheet was layered with a 2 mm thick unvulcanized rubber sheet for inner liner, and heated at 2 kg/cm 2 for 20 seconds.
After applying a load with a press at 30℃, 1
It was cut into inch width pieces and peeled off at a speed of 100 mm/min using a peel tester to examine the adhesiveness. The results are shown in Table 2.
【表】
チアジルスルフエンアミド
[Table] Thiadylsulfenamide
【表】
第２表に示されるように酢酸エチルのみを塗布
した比較例１は粘着力が高く塗布効果が全くな
い。オレイン酸溶液、ステアリン酸亜鉛溶液を塗
布した比較例２〜３は粘着力が低く塗布効果の有
効性はあるものの持続性が悪い。これに対してト
リクロロイソシアヌル酸を塗布した実施例１〜４
は粘着力が低く塗布効果の有効性はあり、しかも
持続性にもすぐれている。
実施例５〜７および比較例４〜５
185／70 HR 14サイズのラジアルタイヤ成形機
において第１表の配合によりなる加硫ゴムで構成
されたドラムブラダーおよびターンナツプブラダ
ーの表面に、第３表に示す各処理液をハケにて成
分換算で８ｇ／m2の量を塗布し、その後ブラダー
表面を30分間風乾し溶剤を乾燥させタイヤを成形
した。実施例１の方法に準じて塗布効果の有効性
および１回処理当たりの効果持続性を調べ結果を
第３表に示した。[Table] As shown in Table 2, Comparative Example 1 in which only ethyl acetate was applied had high adhesive strength and no coating effect at all. Comparative Examples 2 and 3 in which an oleic acid solution and a zinc stearate solution were applied had low adhesive strength, and although the coating effect was effective, the durability was poor. Examples 1 to 4 in which trichloroisocyanuric acid was applied to this
has low adhesive strength, effective application, and excellent durability. Examples 5 to 7 and Comparative Examples 4 to 5 In a 185/70 HR 14 size radial tire molding machine, a third layer was applied to the surfaces of drum bladders and turn nap bladders made of vulcanized rubber having the composition shown in Table 1. Each treatment solution shown in the table was applied with a brush in an amount of 8 g/m 2 in terms of components, and then the bladder surface was air-dried for 30 minutes to dry the solvent and a tire was molded. The effectiveness of the coating effect and the durability of the effect per treatment were investigated according to the method of Example 1, and the results are shown in Table 3.
【表】【table】
【表】
第３表からドラムブラダーとターンナツプブラ
ダーに処理液を塗布した場合、ほぼ同様の結果が
得られた。また、トリクロロイソシアヌル酸溶液
（実施例５）のみならず、Ｎ−ブロモサクシンイ
ミド溶液（実施例６）およびジクロジメチルヒダ
ントイン溶液（実施例７）も塗布効果の有効性お
よび持続性にすぐれていることがわかる。しか
し、グリセリン溶液を塗布した比較例４は塗布効
果の持続性に劣る。このことから、処理液として
は分子中に[Table] From Table 3, almost the same results were obtained when the treatment liquid was applied to the drum bladder and turnup bladder. In addition, not only the trichloroisocyanuric acid solution (Example 5) but also the N-bromosuccinimide solution (Example 6) and the diclodimethylhydantoin solution (Example 7) have excellent effectiveness and sustainability of application effects. I understand. However, in Comparative Example 4 in which a glycerin solution was applied, the durability of the application effect was poor. For this reason, as a processing liquid,
【式】結合（Ｘはハロゲン）を有
する有機ハロゲン化合物の溶液がすぐれているこ
とがわかる。
以上説明したように、分子中にIt can be seen that a solution of an organic halogen compound having a bond (X is halogen) is superior. As explained above, in the molecule
【式】結合
（Ｘはハロゲン）を有する有機ハロゲン化合物の
溶液をブラダーに塗布することを特徴とする本発
明にあつては、ブラダーとタイヤ用未加硫ゴムと
の良好な離型性を長期に渡つて付与するのみなら
ず、粘着防止効果が低下したときには再塗布によ
つて効果が容易に復活し、またこの塗布する処理
液は非移行性であることからタイヤの品質を低下
させるという欠点もない。このことから本発明は
すぐれたタイヤの成形方法である。[Formula] In the present invention, which is characterized in that a solution of an organic halogen compound having a bond (X is a halogen) is applied to the bladder, good mold releasability between the bladder and unvulcanized tire rubber can be maintained for a long period of time. Not only is it applied over a period of time, but when the anti-adhesive effect decreases, the effect can be easily restored by reapplying, and since the treatment liquid applied is non-migratory, it degrades the quality of the tire. Nor. For this reason, the present invention is an excellent tire molding method.
第１図はラジアルタイヤ成形機のセンターより
上半部の断面部であり、第２図は第１図における
ドラムブラダーおよびターンナツプブラダーがふ
くらんだ（インフレート）状態を示す断面図であ
る。
１：ドラムブラダー、２：ターンナツプブラダ
ー、３：インナーライナーゴム層、４：カーカス
ゴム層、５：ビード。
FIG. 1 is a cross-sectional view of the upper half of the radial tire molding machine from the center, and FIG. 2 is a cross-sectional view showing the drum bladder and turn-up bladder in FIG. 1 in an inflated state. 1: drum bladder, 2: turn nap bladder, 3: inner liner rubber layer, 4: carcass rubber layer, 5: bead.
Claims (1)
おいて、該タイヤ成形機に付属するドラムブラダ
ー、ターンナツプブラダーまたはエキスパンドド
ラムカバー表面に、分子中に【式】結合（Ｘ はハロゲン）を有する有機ハロゲン化合物を塗布
することによつてタイヤ用未加硫ゴムとの粘着を
防止したことを特徴とするタイヤの成形方法。[Scope of Claims] 1. In a tire molding method using a tire molding machine, a bond of the formula A method for molding a tire, characterized in that adhesion to unvulcanized rubber for tires is prevented by coating an organic halogen compound containing (halogen).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56136092A JPS5838145A (en) | 1981-09-01 | 1981-09-01 | Method of molding tire |
| KR8202966A KR890000231B1 (en) | 1981-09-01 | 1982-07-02 | Method of molding tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56136092A JPS5838145A (en) | 1981-09-01 | 1981-09-01 | Method of molding tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5838145A JPS5838145A (en) | 1983-03-05 |
| JPS6235388B2 true JPS6235388B2 (en) | 1987-08-01 |
Family
ID=15167066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56136092A Granted JPS5838145A (en) | 1981-09-01 | 1981-09-01 | Method of molding tire |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5838145A (en) |
| KR (1) | KR890000231B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101151730B1 (en) * | 2009-09-28 | 2012-06-15 | 이강배 | Injection mold for rubber assembly of the vehicle tire |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5663432A (en) * | 1979-10-31 | 1981-05-30 | Zeon Kosan Kk | Treatment for surface of vulcanized rubber |
-
1981
- 1981-09-01 JP JP56136092A patent/JPS5838145A/en active Granted
-
1982
- 1982-07-02 KR KR8202966A patent/KR890000231B1/en active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5663432A (en) * | 1979-10-31 | 1981-05-30 | Zeon Kosan Kk | Treatment for surface of vulcanized rubber |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5838145A (en) | 1983-03-05 |
| KR840000364A (en) | 1984-02-22 |
| KR890000231B1 (en) | 1989-03-11 |
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