TW201350324A - Manufacturing method of rubberized fiber fabric - Google Patents

Abstract

The present invention discloses a manufacturing method of rubberized fiber fabric, first, mixing a rubber material containing natural rubber, calcium carbonate, clay, stearic acid, zinc stearate, inorganic foaming agents, foaming aids, softening oils, sulfur, 2,2'-dithiobisbenzothioazole (MBTS), N-cyclohexyl-2-benzothiazole sulfenamide (CBS), diphenyl guanidine, and then, rolling the rubber material to form a rubber membrane. Finally, the rubber membrane is bonded to the surface of a fiber basic fabric using a paste to complete the production. The present invention uses inorganic foaming agents to produce rubberized fabric. Because the inorganic foaming agents will only decompose into harmless carbon dioxide when exposed to heat, instead of formaldehyde, it can achieve the purpose of making an odorless and beautiful rubberized fabric. The main objective of the present invention is to provide a manufacturing method of a rubberized fiber fabric, which makes use of rubber material containing inorganic foaming agents for the production to avoid generating aormaldehyde gas upon thermal decomposition, and achieve purposes of odorless, beauty, health and environmental protection.

Description

橡膠纖維膠布之製作方法 Rubber fiber tape manufacturing method

本發明係有關一種膠布之製作方法，特別是關於一種橡膠纖維膠布之製作方法。 The invention relates to a method for manufacturing a tape, in particular to a method for manufacturing a rubber fiber tape.

二亞硝基五次甲基四胺(DPT)為廉價之橡膠發泡劑，很少單獨使用，大多配合發泡助劑如表面處理之尿素、硬脂酸、和硬脂酸鹽共同使用，以獲得較低之發泡溫度(135~150℃)。單獨貯放安定性差，有發生自燃和***之危險。實用上，DPT發泡劑均添加其它中性填充劑和加工油，以降其濃度而提升其貯放安定性，有利於貯放和運輸。與表面處裡之尿素、硬脂酸和硬脂酸鹽等活化劑配成綜合型發泡劑時，可適用於120~140℃發泡溫度範圍之天然橡膠、丁苯橡膠(SBR)及乙烯醋酸乙烯酯共聚物(EVA)發泡板材，以供鞋中、大底，汽車零件/其它工業製品。 Dinitrosopentamethylenetetramine (DPT) is an inexpensive rubber foaming agent, rarely used alone, mostly in combination with foaming auxiliaries such as surface treated urea, stearic acid, and stearate. Get a lower foaming temperature (135~150 °C). Separate storage stability is poor, there is a danger of spontaneous combustion and explosion. Practically, DPT foaming agents are added with other neutral fillers and processing oils to lower their concentration and enhance their storage stability, which is beneficial for storage and transportation. When combined with an activator such as urea, stearic acid or stearate at the surface to form a comprehensive foaming agent, it can be applied to natural rubber, styrene butadiene rubber (SBR) and ethylene in the foaming temperature range of 120~140 °C. Vinyl acetate copolymer (EVA) foam sheet for shoe, outsole, automotive parts/other industrial products.

DPT發泡劑分解時，會釋放大量之分解熱，導致發泡製品氣室結構變粗大；另會產生氧化氮(NOx)及甲醛，除了會使製品帶有魚腥臭味外，更會使淺色和白色製品變成黃棕色，影響製品外觀。 When the DPT foaming agent is decomposed, a large amount of decomposition heat will be released, resulting in a coarse structure of the foamed product gas chamber; nitrogen oxide (NOx) and formaldehyde will be generated, which will make the product have a fishy smell and will be shallow. The color and white products turn yellowish brown and affect the appearance of the product.

因此，本發明係在針對上述之困擾，提出一種橡膠纖維膠布之製作方法，以解決習知所產生的問題。 Accordingly, the present invention has been made in view of the above problems, and a method for producing a rubber fiber tape is proposed to solve the problems caused by the prior art.

本發明之主要目的，在於提供一種橡膠纖維膠布之製作方法，其係利用含無機發泡劑之橡膠膠料來進行製作，以避免於受熱分解時產生甲醛氣體，達到無臭、美觀、健康及環保之目的。 The main object of the present invention is to provide a method for preparing a rubber fiber tape, which is manufactured by using a rubber compound containing an inorganic foaming agent to avoid generation of formaldehyde gas during thermal decomposition, and to achieve odorless, beautiful, healthy and environmentally friendly. The purpose.

為達上述目的，本發明提供一種橡膠纖維膠布之製作方法，首先，混合一橡膠膠料，其係包含100重量份(PHR)之天然膠、40~50PHR之碳酸鈣、20~30PHR之黏土、3~5PHR之硬脂酸、2~3PHR之硬脂酸鋅、10~12PHR之無機發泡劑、10~12PHR之發泡助劑、10~15PHR之軟化油、2.5~3PHR之硫磺、1.5PHR之2,2’-二硫雙苯並噻唑 (2,2’-dithiobisbenzothioazole,MBTS)、1PHR之N-環己基-2-苯并噻唑次磺酰胺(CBS)、0.5PHR之二苯胍。接著，壓延橡膠膠料，以形成一橡膠薄膜。最後，將橡膠薄膜透過一糊料貼合於一纖維基布之表面。 In order to achieve the above object, the present invention provides a method for producing a rubber fiber tape. First, a rubber compound is mixed, which comprises 100 parts by weight (PHR) of natural rubber, 40 to 50 PHR of calcium carbonate, and 20 to 30 PHR of clay. 3~5PHR stearic acid, 2~3PHR zinc stearate, 10~12PHR inorganic foaming agent, 10~12PHR foaming aid, 10~15PHR softening oil, 2.5~3PHR sulfur, 1.5PHR 2,2'-dithiobisbenzothiazole (2,2'-dithiobisbenzothioazole, MBTS), N-cyclohexyl-2-benzothiazole sulfenamide (CBS) of 1 PHR, diphenyl hydrazine of 0.5 PHR. Next, the rubber compound is calendered to form a rubber film. Finally, the rubber film is applied to the surface of a fiber-based cloth through a paste.

茲為使 貴審查委員對本發明之結構特徵及所達成之功效更有進一步之瞭解與認識，謹佐以較佳之實施例圖及配合詳細之說明，說明如後： For a better understanding and understanding of the structural features and the achievable effects of the present invention, please refer to the preferred embodiment and the detailed description.

常用之物理發泡劑，係將低沸點之烃系有機溶劑(含量15~20%)包覆在亞克力共聚物(含量85~80%)之球狀外殼內而製成。物理發泡劑於受熱使溫度升到其外殼之玻璃轉移溫度時，即開始逐漸開始體積膨脹，如再繼續加熱則體積可脹大至40~50倍，且外殼璧厚變薄而形成中空之球體，此時之溫度稱作最大溫度。如果加熱時間太長或溫度過高過最大溫度，則殼內之揮發氣體會由殼璧逸失而使其已膨脹之體積收縮變小。 A commonly used physical foaming agent is prepared by coating a low-boiling hydrocarbon-based organic solvent (content 15-20%) in a spherical outer shell of an acrylic copolymer (85-80%). When the physical foaming agent is heated to raise the temperature to the glass transition temperature of the outer shell, the volume expansion begins gradually. If the heating is continued, the volume can be swollen to 40 to 50 times, and the outer shell becomes thick and thin to form a hollow. The sphere, the temperature at this time is called the maximum temperature. If the heating time is too long or the temperature is too high above the maximum temperature, the volatile gas in the shell will be lost by the shell enthalpy and the volume contraction of the expanded gas will become smaller.

另化學發泡劑按其化學結構可區分為二類，其一為無機類，其二為有機類。無機類包含有碳酸氫銨(Ammonium Bicarbonate)和碳酸氫鈉(Sodium Bicardonate)。二者遇熱會釋放出二氧化碳(CO₂)氣體，可以用來製作開孔式發泡橡膠製品(Open Cell Sponge)或配合有機發泡劑用於製造閉孔式發泡橡膠製品。有機類發泡劑遇熱會分解出以氮氣為主之氣體混合物及甲醛，甲醛即俗稱之福馬林(Formaldehyde)。一般均用於製造閉孔式發泡橡膠製品(Closed Cell Sponge)。有機類發泡劑由其化學結構差異而有所不同之分解溫度和發氣量。由於無機類發泡劑僅會產生二氧化碳，不會產生甲醛，故本發明即採用此類發泡劑來進行膠布製作。 In addition, chemical foaming agents can be classified into two types according to their chemical structures, one of which is inorganic and the other of which is organic. The inorganic type includes ammonium bicarbonate (Ammonium Bicarbonate) and sodium bicarbonate (Sodium Bicardonate). Both of them will release carbon dioxide (CO ₂ ) gas when heated, and can be used to make open cell foamed rubber products (Open Cell Sponge) or with organic foaming agents for the manufacture of closed cell foamed rubber products. When the organic foaming agent is heated, it will decompose a gas mixture mainly composed of nitrogen and formaldehyde. Formaldehyde is commonly known as Formaldehyde. It is generally used to manufacture closed-cell foam rubber products (Closed Cell Sponge). Organic foaming agents differ in their decomposition temperature and gas generation due to differences in their chemical structure. Since the inorganic foaming agent only produces carbon dioxide and does not generate formaldehyde, the present invention uses such a foaming agent to produce a tape.

首先請參閱第1圖與第2圖。首先如步驟S10所示，混合一橡膠膠料，其係包含10~12重量份(PHR)之無機發泡劑、100PHR之天然膠、40~50PHR之碳酸鈣、20~30PHR之黏土、3~5PHR之硬脂酸、2 ~3PHR之硬脂酸鋅、10~12PHR之發泡助劑、10~15PHR之軟化油、2.5~3PHR之硫磺、1.5PHR之2,2’-二硫雙苯並噻唑(2,2’-dithiobisbenzothioazole,MBTS)、1PHR之N-環己基-2-苯并噻唑次磺酰胺(CBS)、0.5PHR之二苯胍，其中無機發泡劑與發泡助劑係在此分別以碳酸氫鈉與尿素複合體為例，利用碳酸氫鈉作為主要發泡劑，可於受熱分解時僅產生二氧化碳，而非甲醛，達到無臭、美觀、健康及環保之需求。接著，如步驟S12所示，將橡膠膠料送入一壓延貼合機中，經壓延至0.2~0.3釐米之固定厚度，而形成一橡膠薄膜10。再來，如步驟S14所示，將橡膠薄膜10透過一糊料貼合於一纖維基布12之表面，其中糊料之組成成分包含29重量%之膠料、1重量%之硫化劑與偶合劑、70重量%之作為溶劑之甲苯，且纖維基布為尼龍纖維布、聚酯纖維布、棉布或聚酯尼龍混紡紗布。貼合後，如步驟S16所示，將橡膠薄膜10與纖維基布12置入加硫烘箱中，以攝氏150~170度加熱13分鐘以完成硫化。如此整個膠布便具備耐磨損、高彈性回復率及耐曲撓等優異特性。最後，如步驟S18所示，收捲整個膠布，並於成檢機檢查外觀，若無外觀上的問題，即為成品。 First, please refer to Figure 1 and Figure 2. First, as shown in step S10, a rubber compound is mixed, which comprises 10 to 12 parts by weight (PHR) of inorganic foaming agent, 100 PHR of natural rubber, 40 to 50 PHR of calcium carbonate, 20 to 30 PHR of clay, 3~. 5PHR stearic acid, 2 ~3PHR zinc stearate, 10~12PHR foaming aid, 10~15PHR softening oil, 2.5~3PHR sulfur, 1.5PHR 2,2'-dithiobisbenzothiazole (2,2'- Dithiobisbenzothioazole, MBTS), 1 PHR of N-cyclohexyl-2-benzothiazole sulfenamide (CBS), 0.5 PHR of diphenyl hydrazine, wherein the inorganic blowing agent and the foaming aid are respectively sodium hydrogencarbonate and For example, the urea composite uses sodium hydrogencarbonate as the main foaming agent, which can generate only carbon dioxide instead of formaldehyde when it is decomposed by heat, and achieves the demand of odorless, beautiful, healthy and environmentally friendly. Next, as shown in step S12, the rubber compound is fed into a calendering laminator and calendered to a fixed thickness of 0.2 to 0.3 cm to form a rubber film 10. Then, as shown in step S14, the rubber film 10 is adhered to the surface of a fiber-based cloth 12 through a paste, wherein the composition of the paste comprises 29% by weight of the compound, 1% by weight of the vulcanizing agent and even A mixture, 70% by weight of toluene as a solvent, and the fiber-based cloth is a nylon fiber cloth, a polyester fiber cloth, a cotton cloth or a polyester-nylon blended gauze. After the bonding, as shown in step S16, the rubber film 10 and the fiber-based cloth 12 are placed in a vulcanization oven, and heated at 150 to 170 degrees Celsius for 13 minutes to complete the vulcanization. Thus, the entire tape has excellent properties such as abrasion resistance, high elastic recovery rate, and resistance to flexing. Finally, as shown in step S18, the entire tape is wound up, and the appearance is checked at the inspection machine. If there is no problem in appearance, it is a finished product.

在本發明之方法中，上述之步驟S16、S18亦可皆省略，這樣也可製作出本發明之橡膠纖維膠布。 In the method of the present invention, the above steps S16 and S18 may also be omitted, so that the rubber fiber tape of the present invention can also be produced.

上述步驟S10有其細部步驟，如下所述：首先，以萬馬力混煉機混合橡膠膠料。接著，在攝氏70~85度的環境下以二滾輪混合橡膠膠料，以達成均勻混合之效果，其中此二滾輪其一為粗輪，另一為細輪。然後才進行步驟S12。 The above step S10 has its detailed steps as follows: First, the rubber compound is mixed with a 10,000 horsepower mixer. Next, the rubber compound is mixed with two rollers in an environment of 70 to 85 degrees Celsius to achieve uniform mixing effect, wherein the two rollers are a coarse wheel and the other is a thin wheel. Then step S12 is performed.

此外，步驟S14之細部流程如第3圖所示。當進行完步驟S12後，如步驟S20所示，先於攝氏130度下，以15呎/分(y/min)之速度，於纖維基布12之表面形成厚度為0.02釐米之糊料。接著，如步驟S22所示，將纖維基布12送入烘箱中，以攝氏150~170度烘烤1分30秒，將糊料中的溶劑完全揮發。最後，將橡膠薄膜10與纖維基布12送入一壓延貼合機，並在攝氏75~90度下，將橡膠薄膜10透過糊料貼合 於纖維基布12之表面。然後，再依序進行步驟S16與步驟S18。 Further, the detailed flow of step S14 is as shown in FIG. After the step S12 is performed, as shown in the step S20, a paste having a thickness of 0.02 cm is formed on the surface of the fiber-based cloth 12 at a speed of 15 Å/min (y/min) at 130 °C. Next, as shown in step S22, the fiber-based cloth 12 is fed into an oven and baked at 150 to 170 degrees Celsius for 1 minute and 30 seconds to completely evaporate the solvent in the paste. Finally, the rubber film 10 and the fiber-based cloth 12 are fed into a calendering laminating machine, and the rubber film 10 is pasted through the paste at 75 to 90 degrees Celsius. On the surface of the fiber-based cloth 12. Then, step S16 and step S18 are performed in sequence.

綜上所述，本發明利用無機發泡劑取代習知產生甲醛之發泡劑，以達到美觀、健康等環保需求。 In summary, the present invention utilizes an inorganic foaming agent to replace a conventional foaming agent that produces formaldehyde to achieve environmental protection requirements such as aesthetics and health.

以上所述者，僅為本發明一較佳實施例而已，並非用來限定本發明實施之範圍，故舉凡依本發明申請專利範圍所述之形狀、構造、特徵及精神所為之均等變化與修飾，均應包括於本發明之申請專利範圍內。 The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, so that the shapes, structures, features, and spirits described in the claims of the present invention are equally varied and modified. All should be included in the scope of the patent application of the present invention.

10‧‧‧橡膠薄膜 10‧‧‧ Rubber film

12‧‧‧纖維基布 12‧‧‧Fiber base fabric

第1圖為本發明之橡膠纖維膠布之結構示意圖。 Fig. 1 is a schematic view showing the structure of a rubber fiber tape of the present invention.

第2圖為本發明之流程圖。 Figure 2 is a flow chart of the present invention.

第3圖為本發明之橡膠薄膜與纖維基布之貼合流程圖。 Fig. 3 is a flow chart showing the bonding of the rubber film and the fiber base fabric of the present invention.

Claims (13)

一種橡膠纖維膠布之製作方法，包括下列步驟：混合包含100重量份(PHR)之天然膠、40~50PHR之碳酸鈣、20~30PHR之黏土、3~5PHR之硬脂酸、2~3PHR之硬脂酸鋅、10~12 PHR之無機發泡劑、10~12PHR之發泡助劑、10~15PHR之軟化油、2.5~3PHR之硫磺、1.5PHR之2,2’-二硫雙苯並噻唑(2,2’-dithiobisbenzothioazole,MBTS)、1PHR之N-環己基-2-苯并噻唑次磺酰胺(CBS)、0.5PHR之二苯胍之一橡膠膠料；壓延該橡膠膠料，以形成一橡膠薄膜；以及該橡膠薄膜透過一糊料貼合於一纖維基布之表面。 A method for manufacturing a rubber fiber tape comprises the steps of: mixing 100 parts by weight (PHR) of natural rubber, 40 to 50 PHR of calcium carbonate, 20 to 30 PHR of clay, 3 to 5 PHR of stearic acid, and 2 to 3 PHR of hard Zinc citrate, 10~12 PHR inorganic foaming agent, 10~12PHR foaming auxiliaries, 10~15PHR softening oil, 2.5~3PHR sulphur, 1.5PHR 2,2'-dithiobisbenzothiazole (2,2'-dithiobisbenzothioazole, MBTS), 1 PHR of N-cyclohexyl-2-benzothiazole sulfenamide (CBS), 0.5 PHR of diphenyl hydrazine rubber compound; calendering the rubber compound to form a rubber film; and the rubber film is adhered to the surface of a fiber-based cloth through a paste. 如請求項1所述之橡膠纖維膠布之製作方法，其中在混合該橡膠膠料之步驟中，更包含下列步驟：以萬馬力混煉機混合該橡膠膠料；以及在攝氏70~85度的環境下以二滾輪混合該橡膠膠料。 The method for producing a rubber fiber tape according to claim 1, wherein in the step of mixing the rubber compound, the method further comprises the steps of: mixing the rubber compound with a 10,000 horsepower mixer; and at 70 to 85 degrees Celsius. The rubber compound is mixed with two rollers under the environment. 如請求項2所述之橡膠纖維膠布之製作方法，其中該二滾輪包含一細輪與一粗輪。 The method for manufacturing a rubber fiber tape according to claim 2, wherein the two rollers comprise a thin wheel and a coarse wheel. 如請求項1所述之橡膠纖維膠布之製作方法，其中在壓延該橡膠膠料，以形成該橡膠薄膜之步驟中，將該橡膠膠料送入一壓延貼合機中，經壓延至一固定厚度而形成該橡膠薄膜。 The method for producing a rubber fiber tape according to claim 1, wherein in the step of rolling the rubber compound to form the rubber film, the rubber compound is fed into a calendering laminating machine and calendered to a fixed portion. The rubber film is formed in a thickness. 如請求項4所述之橡膠纖維膠布之製作方法，其中該固定厚度為0.2~0.3釐米。 The method for producing a rubber fiber tape according to claim 4, wherein the fixed thickness is 0.2 to 0.3 cm. 如請求項1所述之橡膠纖維膠布之製作方法，其中該橡膠薄膜透過該糊料貼合於該纖維基布之該表面之步驟，更包含下列步驟：於該表面形成該糊料；烘烤該糊料；以及將該橡膠薄膜與該纖維基布送入一壓延貼合機，並在攝氏75~90度下，將該橡膠薄膜透過該糊料貼合於該表面。 The method for producing a rubber fiber tape according to claim 1, wherein the rubber film is adhered to the surface of the fiber-based cloth through the paste, and further comprises the steps of: forming the paste on the surface; baking And applying the rubber film and the fiber-based cloth to a calendering laminating machine, and bonding the rubber film to the surface through the paste at 75 to 90 degrees Celsius. 如請求項6所述之橡膠纖維膠布之製作方法，其中在於該表面形成 該糊料之步驟中，係於攝氏130度下，以15呎/分(y/min)之速度，於該表面形成厚度為0.02釐米之該糊料。 The method for producing a rubber fiber tape according to claim 6, wherein the surface is formed In the paste step, the paste having a thickness of 0.02 cm was formed on the surface at a rate of 15 Å/min (y/min) at 130 °C. 如請求項6所述之橡膠纖維膠布之製作方法，其中在烘烤該糊料之步驟中，係將該纖維基布送入烘箱中，以攝氏150~170度烘烤1分30秒。 The method for producing a rubber fiber tape according to claim 6, wherein in the step of baking the paste, the fiber-based cloth is fed into an oven and baked at 150 to 170 degrees Celsius for 1 minute and 30 seconds. 如請求項1所述之橡膠纖維膠布之製作方法，更包含一步驟，其係將該纖維基布置入加硫烘箱中，以攝氏150~170度加熱13分鐘以完成硫化。 The method for producing a rubber fiber tape according to claim 1, further comprising the step of disposing the fiber base in a vulcanization oven and heating at 150 to 170 degrees Celsius for 13 minutes to complete the vulcanization. 如請求項1所述之橡膠纖維膠布之製作方法，其中該糊料之組成成分包含29重量%之膠料、1重量%之硫化劑與偶合劑、70重量%之溶劑。 The method for producing a rubber fiber tape according to claim 1, wherein the composition of the paste comprises 29% by weight of a compound, 1% by weight of a vulcanizing agent and a coupling agent, and 70% by weight of a solvent. 如請求項10所述之橡膠纖維膠布之製作方法，其中該溶劑為甲苯。 The method for producing a rubber fiber tape according to claim 10, wherein the solvent is toluene. 如請求項1所述之橡膠纖維膠布之製作方法，其中該無機發泡劑為碳酸氫鈉，該發泡助劑為尿素複合體。 The method for producing a rubber fiber tape according to claim 1, wherein the inorganic foaming agent is sodium hydrogencarbonate, and the foaming aid is a urea composite. 如請求項1所述之橡膠纖維膠布之製作方法，其中該纖維基布為尼龍纖維布、聚酯纖維布、棉布或聚酯尼龍混紡紗布。 The method for producing a rubber fiber tape according to claim 1, wherein the fiber base cloth is a nylon fiber cloth, a polyester fiber cloth, a cotton cloth or a polyester nylon blended gauze.