1344475 九、發明說明： 【發明所屬之技術領域】 ' 本發明係與橡膠發泡物之製法有關，更詳而言之 是指一種網狀發泡物之製法者。 【先前技術】 為提升橡膠發泡墊體之透氣性、減輕重量、降低 • 製作成本，市面上有不少橡膠發泡墊體係製作成網 狀如常見之車用或豕用防滑墊等。而習知製作網狀 橡膠發泡墊體之方式有二：其一，係將紗線編織而成 之網體浸染橡膠發泡原料，使橡膠發泡材料附著於網 體上後予以發泡成型，俾獲致網狀發泡墊體；其二， 是利用模具或刀具將發泡完成之橡膠墊體裁切成網 狀。 雖然前揭製作網狀橡膠發泡墊體之方式已於業界 沿用多年，惟，二者皆仍有須改進之處：首先，二者 皆無法於發泡過程中一次完成網狀墊體，製作方式略 嫌繁雜。再者，利用附著紗網方式所製成之網狀橡膠 墊體，其受到内含紗線之限制，伸縮性甚差。 /其-人，由於產品多樣性之需求，單純之網狀橡膠 發/包製ασ已漸漸不符合市場需求，因此，如何於網狀 橡膠發泡物表面貼合不同物性之材質（如於橡膠發泡 物表面貼合布料）、提升發泡產品之用途乃為目前業 1344475 者努力構思研發之方向。而習知於橡膠發泡物表面貼 合不同物性材質之技術，如第901 15918號、第 91 132350號及第92100377號專利案所示，係必須在 橡膠片尚未送進加硫發泡箱（加硫成型機）成型前於 其表面塗佈膠合劑或接著劑，並將不同物性之材質置 於橡膠片上一倂送入加硫發泡箱，始可發泡成型為具 不同物性之發泡製品。 雖然刖揭於橡膠發泡物表面貼合不同物性材質之 技術可獲得預期之效果，不過，利用膠合劑或接著劑 進行貼合之方式會導致空氣或水污染之環保問題。 « .· 【發明内容】 本發明之主要目的即在提供一種網狀發泡物之製 法，其不僅不須使用膠合劑或接著劑即可使橡膠發泡 物與不同物性之材質貼合在一起，且，其可直接發泡 成型為網狀發泡體者，俾可解決習知網狀橡膠發泡物 製法之缺失者。 緣是，為達成前述之目的，本創作係提供一種網 狀發泡物之製法，其步驟包含有幻將預定比例之橡 膠、發泡劑與促進劑等原料予以充分加壓揉捏混煉； b)備置一成型裝置，將混練後之原料輸入該成型裝 置，用以可受該成型裝置塑形而呈網狀；c)將網狀橡 膠片表面施以軟化處理；d)將一貼合物置於網狀橡膠 1344475 片表面並施加壓力使二者相對貼接；e)將前述貼接之 - 網狀橡膠片與貼合物予以加硫、發泡成型，用以可獲 致一網狀橡膠發泡物者。 【實施方式】 以下，茲舉本創作一較佳實施例，並配合圖式做 進一步之詳細說明如後： 鲁 參閱第一圖及第二圖所示，本發明一較佳實施例 之網狀發泡物10之製法，其第一步驟係將預定比例之 橡膠與發泡劑、促進劑等原料置於一習知捏合機内予 以加壓揉捏混練，·再將揉捏後之捏合料送入一習知混 合機内進行再充份混合修正之動作： 該原料係包含有約4: 1比例之天然橡膠與人造彈 性料（如苯乙烯-丁二烯橡膠，SBR、丁二烯橡膠，br、 乙烯-丙烯-非-共軛二烯橡膠，EPDM等）以及適量之加 籲 硫劑（如硫磺等）、有機發泡劑（如偶氮二曱胺，1344475 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a method of producing a rubber foam, and more particularly to a method of producing a network foam. [Prior Art] In order to improve the gas permeability, reduce the weight, and reduce the manufacturing cost of the rubber foaming pad body, there are many rubber foaming mat systems on the market, such as a common car or a non-slip mat. There are two ways to make a mesh rubber foaming pad body: one is that the mesh body woven from the yarn is impregnated with a rubber foaming raw material, and the rubber foaming material is attached to the mesh body and then foamed. The mesh foaming body is obtained by the seizure; the second is to cut the foamed rubber body into a mesh shape by using a mold or a cutter. Although the method of making the mesh rubber foam pad has been used in the industry for many years, there are still some improvements: First, neither of them can complete the mesh body once in the foaming process. The way is a bit cumbersome. Further, the mesh rubber pad body made by the attached gauze method is limited by the inner yarn and has poor stretchability. / / - People, due to the demand for product diversity, the simple mesh rubber hair / package ασ has gradually not met the market demand, therefore, how to apply different physical properties to the surface of the mesh rubber foam (such as rubber The use of the surface of the foam to match the fabric) and the use of the foaming product are the direction of the current industry of 1,344,475. However, it is known that the technique of attaching different physical materials to the surface of a rubber foaming material, as shown in the patents Nos. 901, 15, 918, 91, 132,350 and 92,100, 377, is that the rubber sheet has not been fed into the vulcanization foaming box ( The vulcanization molding machine is coated with a glue or an adhesive on the surface before molding, and the materials of different physical properties are placed on the rubber sheet and sent to the vulcanization foaming box, and the foaming can be foamed into foams with different physical properties. product. Although the technique of attaching different physical materials to the surface of a rubber foam can achieve the desired effect, the use of a glue or an adhesive for bonding may cause environmental problems of air or water pollution. « .· 【 SUMMARY OF THE INVENTION The main object of the present invention is to provide a method for producing a mesh foam which can be used to bond rubber foam with materials of different physical properties without using a glue or an adhesive. Moreover, it can be directly foamed into a reticulated foam, and the crucible can solve the problem of the conventional mesh rubber foam production method. The reason is that, in order to achieve the above-mentioned purpose, the present invention provides a method for preparing a reticulated foam, the steps of which comprise a predetermined proportion of rubber, a foaming agent and a promoter, and a sufficient pressure kneading and kneading; b) preparing a molding device, inputting the kneaded raw material into the molding device for being shaped into a mesh shape by the molding device; c) applying a softening treatment to the surface of the mesh rubber sheet; d) attaching a material The object is placed on the surface of the mesh rubber 1344475 and pressure is applied to make the two adhere to each other; e) the previously attached-mesh rubber sheet and the laminate are vulcanized and foamed to obtain a mesh rubber Foamer. [Embodiment] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings as follows: Referring to the first and second figures, a mesh of a preferred embodiment of the present invention is shown. In the method for preparing the foam 10, the first step is to put a predetermined proportion of the rubber, a foaming agent, a promoter and the like into a conventional kneading machine for press kneading and kneading, and then kneading the kneaded material. The action of refilling and modifying in a conventional mixer: the raw material comprises a natural rubber and artificial elastic material in a ratio of about 4:1 (such as styrene-butadiene rubber, SBR, butadiene rubber, br , ethylene-propylene-non-conjugated diene rubber, EPDM, etc.) and an appropriate amount of sulfur-adding agent (such as sulfur, etc.), organic foaming agent (such as azodiamine,
Azodicarbonamide，ADCA等）、促進劑（如橡膠硫化 促，TMTD、MBT等）及填充劑（或補強劑）等用以降 低成本且改良橡膠成品物理性質之添加劑（如橡膠級 黑煙，Rubber Grade Carbon Black、純二氧化石夕，Fumed Silica、矽酸鈣，CaSi03、碳酸鈣，CaC03 等）。 本發明之第二步驟係備置一成型裝置（圖中未 示），將混練後之橡膠發泡原料輸入該成型裝置，用 1344475 以可受該成型裝置塑形而輪出趫 裝置係習知塑㈣所使用=物】2。該成型 … 糸所便用之平面網押出機，用以可 將混練後之橡膠發泡原料塑形成平面網狀。Additives such as Azodicarbonamide, ADCA, etc., accelerators (such as rubber vulcanization, TMTD, MBT, etc.) and fillers (or reinforcing agents) to reduce the cost and improve the physical properties of rubber products (such as rubber grade black smoke, Rubber Grade Carbon) Black, pure silica dioxide, Fumed Silica, calcium citrate, CaSi03, calcium carbonate, CaC03, etc.). In the second step of the present invention, a molding device (not shown) is provided, and the rubber foaming raw material after the kneading is input into the molding device, and the applicator is shaped by using 1,344,475 to be shaped by the molding device. (4) Use = object] 2. The flat screen extrusion machine used for molding can be used to mold the rubber foam raw material after the kneading into a flat mesh shape.
本發明之第三步驟係將網狀橡膠片12表面施以 軟化處理··軟化方式係先將表衫化難料網狀橡 膠片12表面，再對網狀橡夥片12表面施以15代至 250 C之加熱處理使其軟化。前揭表面柔化劑係習知製 作橡膠類產品時所使用之橡膠軟化助劑。 本發明之第四步驟係將一貼合物〗4置於網狀橡 膠片12表面並施加壓力使二者相對貼接。該貼合物 14係可伸縮之彈性布。 本發明之第五步驟係將前述已貼合之網狀橡膠片 12與貼合物14置於習知加硫發泡箱内加硫、發泡成 型：藉由橡膠發泡時所產生之力量及發泡劑起化學變 化時所產生之氣體壓力可發泡成型為一網狀發泡物 最後，再將硫化發泡後之網狀發泡物1 〇經由常溫 冷卻之方式定型。 前揭貼合物14亦可為塑膠薄膜等材質，俾可提升 橡-膠發泡物產品之多樣性、增加產品使用上之用途。 藉此’本發明網狀發泡物10之製法，其利用橡膠 原料發泡時所產生之力量及發泡劑起化學變化時所產 生之氣體壓力即可將不同物性之貼合物14黏貼於利 8 1344475 用成型裝置直接成型之網狀橡膠片12上，俾可省略黏 著劑之使用、更為環保，且，不須浪費裁切網孔之各 * 項製作成本’整體伸縮性亦甚佳者。 綜上所陳’本發明所提供之網狀發泡物之製法， 其不僅不須使用膠合劑或接著劑即可使橡膠發泡物與 不同物性之材質貼合在一起，且，其可直接發泡成型 為網狀發泡體者，俾可解決習知網狀橡膠發泡物製法 • 之缺失者；緣是，本發明確實符合發明專利之規定， 爰依法提出申請。 【圖式簡單說明】 第一圖係本發明一較佳實施例之流程圖。 第二圖係本發明一較佳實施例所製成之成品圖。 【主要元件符號說明】 網狀發泡物10 網狀橡膠片12 貼合物14In the third step of the present invention, the surface of the mesh rubber sheet 12 is subjected to a softening treatment and a softening method. The surface of the soft rubber sheet 12 is firstly woven, and the surface of the mesh rubber sheet 12 is applied for 15 generations. Heat treatment to 250 C to soften it. The surface softening agent is a rubber softening aid which is conventionally used in the production of rubber products. In the fourth step of the present invention, a laminate 4 is placed on the surface of the mesh film 12 and pressure is applied to cause the two to be relatively attached. The laminate 14 is a stretchable elastic cloth. In the fifth step of the present invention, the laminated mesh rubber sheet 12 and the laminate 14 are placed in a conventional sulfurizing foaming box to be vulcanized and foamed: the force generated by foaming the rubber. And the gas pressure generated by the chemical change of the foaming agent can be foamed into a mesh foam, and then the vulcanized foamed mesh foam 1 定 is shaped by cooling at room temperature. The pre-exposed composite 14 can also be made of a plastic film or the like, which can improve the variety of rubber-foam foam products and increase the use of the product. According to the method for producing the reticulated foam 10 of the present invention, the adhesive of different physical properties can be adhered to by using the force generated when the rubber raw material is foamed and the gas pressure generated when the foaming agent chemically changes.利 8 1344475 On the mesh rubber sheet 12 directly molded by the molding device, the use of the adhesive can be omitted, and it is more environmentally friendly, and the manufacturing cost of the cut mesh is not required to be wasted. By. In summary, the method for preparing the reticulated foam provided by the present invention not only does not require the use of a glue or an adhesive, but also allows the rubber foam to be bonded to materials of different physical properties, and If the foam is molded into a reticular foam, the 俾 can solve the problem of the conventional woven rubber foam preparation method; the reason is that the invention does meet the requirements of the invention patent, and the application is made according to law. BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a flow chart of a preferred embodiment of the present invention. The second drawing is a finished view of a preferred embodiment of the invention. [Description of main component symbols] Reticulated foam 10 Reticulated rubber sheet 12 Composite 14