442521 五、發明說明（1) 本發明關於一種乙烯〜醋醆乙烯聚合物（EVA)發泡體 之開放式的常壓發泡方法，形成發泡氣囊均一，且性能優 異之連續捲式發泡體。本發明之製法與傳統製法比較、不 僅製法簡易且生產速度快，既可降低成本，又能製出強度 均一無接縫之連續發泡體。本發明之製法所生產的連續捲 式發泡體應用範圍非常廣泛，如應用於旅行箱、防護墊、 浮板、地墊、玩具、襯片、及鞋^等。 傳統的EVA發泡體製法，通常採用加熱高壓的密閉方 式予以發泡，如本國專利公告苐1 66585號和第2 2 2 5 7 7號， 發泡鞋中底之製程係於模令發炮為計量射出在一次模内 成型初胚’再加熱南壓發泡成為成型胚，進而將成型胚置 入二次模内定型。本國專利17068 9號，為於同一模具形成 多種成品尺寸之發泡體。傳統之EVA發泡技術，均係在高 壓密閉方式下進行，才能製得發泡氣囊均一之高發泡倍率 之發泡體，但只能批式生產’有發泡時間長、生產速度慢 且生產步驟多之缺點；而後段加工業者需要用補強材時， 需再自行貼合補強材，才可裁切使用’又因兩片接合之處 無法使用而產生太多發泡體之廢料。整體而言，傳統EVA 發泡製法’有生產效率低、成本高、廢料多之瓶頸，因此 開放式常壓連續捲式發泡之技術，一直為科學家尋求突破 之重點技術。 為了解決傳統工業EVA發泡製法之缺點，本案發明人 經歷長時間系列性的探討研究’終能找出排除傳統技術之 缺點’建立了完整捲式連續常壓發泡之製法，本發明之發442521 V. Description of the invention (1) The present invention relates to an open normal pressure foaming method of an ethylene-vinyl acetate polymer (EVA) foam, which forms a continuous roll foam with uniform foaming airbags and excellent performance. body. Compared with the traditional production method, the production method of the present invention is not only simple and fast in production speed, but also can reduce the cost and produce a continuous foamed body with uniform strength and no joints. The continuous roll foam produced by the method of the present invention has a wide range of applications, such as being used in suitcases, protective pads, floating boards, floor mats, toys, linings, and shoes. The traditional EVA foaming system method usually adopts heat and pressure to seal the foam. For example, national patent publications No. 1 66585 and No. 2 2 5 7 7, the manufacturing process of the foam sole is based on the firing of the mold. In order to measure the injection, the primary embryo is formed in a primary mold, and then heated and foamed to form a molding embryo, and then the molding embryo is placed in a secondary mold to shape. National patent No. 17068 No. 9 is for forming foams of various finished sizes in the same mold. Traditional EVA foaming technology is carried out in a high-pressure closed mode to obtain uniform and high foaming foams of foamed airbags. However, it can only be produced in batches. It has long foaming time, slow production speed and production. Disadvantages of many steps; when the processing industry needs to use the reinforcing material, it needs to affix the reinforcing material by itself before it can be cut and used. And because the two joints cannot be used, too much foam waste is generated. On the whole, the traditional EVA foaming method has the bottlenecks of low production efficiency, high cost, and a lot of waste. Therefore, the open-pressure continuous-roll continuous foaming technology has been a key technology for scientists to seek breakthroughs. In order to solve the shortcomings of the traditional industrial EVA foaming method, the inventor of the present case, after a long period of series of research and studies, was able to find out the shortcomings of the traditional technology, and established a complete roll continuous atmospheric pressure foaming method.
第6頁 ?52 t 五'發明說明（2) 泡製法，不僅 得氣囊均一， 可在開 高發泡 體連續 材乃是 合處有 上所謂的發泡 其所謂的連續 接而成，其接 明之製法確能製得強 本發明關於一種 囊均 且性 明之製法係將 而後藉由發泡 泡產品。此外 置，再將此補 卻捲取、即得 法比較下、其 續生產，生產 泡體。 本發明的 體之製法，其 混合物與混煉 本發明的 所示；若需貼 (a)原料組 中混合分散， 之分解溫度， 能優異 組成物 裝置加 ，本發 強材與 複合捲 特色在 效率高 放式常壓下發泡，更可連續成形而製 倍率之無接縫捲式E V A發泡體。市面 材，如本國專利公告第1 8 3 1 6 1號，但 EVA發泡體經裁切成薄片後再逐片熔-外觀不良、強度較弱之缺點，但本發 度均一且無接縫之連續發泡體。 藉開放式常壓發泡方法，形成發泡氣 之無接縫連續捲式E V A發泡體。本發 ，經混合裝置，再經薄膜產.生裝置， 熱發泡、冷卻捲取，即得連續捲式發 明之製法亦可將補強材，先經裱糊裝 經混合裝置、已成形之膠片貼合，冷 式發泡產品。本發明之製法與傳統製 製法簡易，可在常壓下以開放方式連 ，進而製出強度均一無接縫之連續發 製程為開放式常壓無接縫連續捲式EVA發泡 中EVA係指選自於乙烯-醋酸乙烯聚合物及其 物。 製法之流程，如不需貼補強材，則如第3圖 補強材則如第4圖所示，其包括步驟如下： 成物混合煉製步驟：將各成分加入混合裝置 在煉製過程中，溫度不超過發泡劑及交聯劑 約9 0°C - 1 7 0°C。以1 0 0 - 1 5 0°C為較佳之範圍Page 6? 52t five 'invention description (2) The foaming method not only obtains uniform airbags, but also the so-called continuous connection of the foamed continuous material at the opening of the high-foam continuous material, which is clearly explained The manufacturing method can indeed be strong. The invention relates to a homogeneous and clear manufacturing method, and then a bubble product is used. In addition, this supplement is taken up again, and the comparison method is obtained, and the production is continued to produce the foam. The method for producing the body of the present invention, the mixture and kneading of the present invention; if it is necessary to paste (a) the raw material group to mix and disperse, the decomposition temperature can be excellent, and the composition can be added. High-efficiency non-seam-rolled EVA foam that can be foamed at atmospheric pressure and can be continuously formed. Market materials, such as National Patent Bulletin No. 1 8 3 1 6 1, but EVA foam is cut into thin pieces and then melted piece by piece-shortcomings of poor appearance and weak strength, but the hair is uniform and has no seams Continuous foam. By the open-type atmospheric pressure foaming method, a seamless continuous roll E V A foam body of foaming gas is formed. The hair, through the mixing device, and then through the film production device, thermal foaming, cooling and winding, to obtain the continuous roll invention method can also be used to reinforce the material, first through the mixing device, the formed film paste Coated, cold foam products. The manufacturing method of the present invention is simple compared with the traditional manufacturing method, and can be connected in an open manner under normal pressure, so as to produce a seamless continuous hair with uniform strength. The process is an open normal pressure seamless continuous roll EVA foam. EVA refers to It is selected from ethylene-vinyl acetate polymers and the like. The process of the manufacturing method, if there is no need to reinforce the material, as shown in Figure 3, the reinforcing material is shown in Figure 4, which includes the steps as follows: mixed product refining step: adding ingredients to the mixing device during the refining process, The temperature does not exceed about 90 ° C-170 ° C of foaming agent and cross-linking agent. 1 0 0-1 50 ° C is the better range
第7頁 442 5 2 1 五、發明說明（3) 〇 (b )裱糊步驟：當發泡體需要補強材時，則將補強材直 接使用，或將補強材上漿，或在補強材上直接塗佈一層糊 料，作為接著層，塗佈後將補強材捲取備用。 - (c) 薄膜製作步驟：經由煉製完成之膠料出片，經過薄 膜產生裝置形成膠片，或將膠片料與備好之補強材貼合， 經由冷卻捲取，以備進行發泡。於此階段製程中，其製造 薄膜裝置的溫度控制在1 7 0°C以下，其中以1 6 0°C以下為其 較佳之條件。 (d) 發泡步驟：經由製造薄膜裝置形成之膠片或貼合補 強材之膠片在發泡裝置中發泡，其加熱發泡之階段可分不 同之溫度帶予以加熱，其發泡條件為溫度1 6 0 - 2 5 0°C，時 間為1 - 4分鐘，其中溫度以1 8 0 - 2 3 OeC ，時間以1 · 5 - 3分鐘 為較佳之條件，發泡完成後冷卻捲取即得連續捲式發泡體 〇 上述為連續捲式發泡體之製程，其可為各步驟分開進 行，亦可四個步驟連續進行，其各步驟間亦不必有捲取之 動作，而在最終完成之步驟再予以捲取。 由上述之敘述，已可確切說明本發明技術之新穎性， 具有經濟價值，且為工業上實施可行。茲為具體說明本發 明，特以下列之實例與比較例予以說明，唯本發明並不局 限於所列之實施例内容。 實J—丄―： 本例所使用之組成物：EVA 1 00份（重量份，以下亦同Page 7 442 5 2 1 V. Description of the invention (3) 〇 (b) Papering step: When the foam needs reinforcing material, use the reinforcing material directly, or sizing the reinforcing material, or directly on the reinforcing material A layer of paste is applied as an adhering layer, and the reinforcing material is wound up after the application. -(c) Film production step: the film is produced through refining, and then formed into a film through a film generating device, or the film material is laminated with the prepared reinforcing material, and then taken up by cooling, for foaming. In this stage of the process, the temperature of the thin film device it manufactures is controlled below 170 ° C, and below 160 ° C is the preferred condition. (d) Foaming step: The film formed by manufacturing the thin film device or the film with the reinforcing material is foamed in the foaming device. The heating and foaming stage can be heated in different temperature zones. The foaming conditions are temperature. 1 6 0-2 5 0 ° C, time is 1-4 minutes, among which the temperature is 1 80-2 3 OeC, time is 1 · 5-3 minutes is the preferred condition. After the foaming is completed, it is obtained by cooling and coiling. Continuous roll foam ○ The above is the process of continuous roll foam, which can be performed separately for each step, or can be performed continuously in four steps. There is no need to take up the coils between each step, and it is finally completed. The steps are then taken up. From the above description, the novelty of the technology of the present invention can be clearly explained, has economic value, and is feasible for industrial implementation. The present invention is specifically described below with the following examples and comparative examples, but the present invention is not limited to the contents of the listed examples. Actual J— 丄 ―: Composition used in this example: EVA 1 00 parts (parts by weight, the same applies to the following)
44252 1 五、發明說明¢4) )、偶II二曱醯胺6份、過氧化二異丙苯0. 6份、硬脂酸鋅 1份。其加工條件如表1中所示，用混合裝置煉製，並經薄 膜製造裝置，做成厚度1.0毫米之膠片捲，將該膠片捲經 過發泡裝置發泡之。分別測定所獲得發泡薄片捲之發泡倍 率、氣囊狀態硬度、拉力強度、伸長率、破裂度，其測定 結果顯示於表1中。 又上述物性依下列方法測定： 發泡後之薄片厚度 發泡倍率= (倍） 發泡前之樹脂薄片厚度 發泡氣囊狀態： 〇係表示氣囊直徑為0. 3毫米以下，且均一細緻。 ◊係表示氣囊大小分佈不均。 X係表示氣囊有破壞現象。 拉力強度：ASTM D 3574 伸長率：ASTM D 3574 破裂強度：JIS P 8131 剝離強度：J I S K 6 7 7 2 實例2 - 4 :如表1中所示之加工條件，其組成物同實例1。 實例5 : 如表1中所示之加工條件，其組成物同實例1，唯膠片 出片後與塗有接著膠之補強材，貼合後發泡之。其貼合後 之厚度為1 . 2毫米。其複合EVA發泡體物性之測定項目同實44252 1 V. Description of the invention ¢ 4)), 6 parts of diammonium diamine, 0.6 parts of dicumyl peroxide, 1 part of zinc stearate. The processing conditions are as shown in Table 1. It is refined by a mixing device and made into a film roll with a thickness of 1.0 mm through a film manufacturing device, and the film roll is foamed through a foaming device. The foaming ratio, airbag state hardness, tensile strength, elongation, and cracking degree of the obtained foamed sheet roll were measured, and the measurement results are shown in Table 1. And the above physical properties are measured according to the following methods: Sheet thickness after foaming Foaming ratio = (times) Thickness of resin sheet before foaming Foamed airbag state: 〇 means the diameter of the airbag is 0.3 mm or less, and is uniform and detailed. Actinides indicate that the size distribution of air sacs is uneven. The X system indicates that the airbag is damaged. Tensile strength: ASTM D 3574 Elongation: ASTM D 3574 Rupture strength: JIS P 8131 Peel strength: J I S K 6 7 7 2 Examples 2-4: The processing conditions are shown in Table 1, and the composition is the same as in Example 1. Example 5: The processing conditions are as shown in Table 1. Its composition is the same as that in Example 1. The film is foamed after being bonded with a reinforcing material coated with adhesive after the film is released. The thickness after lamination is 1.2 mm. The measurement items of the physical properties of the composite EVA foam are the same
442521 五、發明說明（5) 例1外，增加EVA發泡體與補強材間之剝離強度及複合發泡 體之破裂強度。另針對發泡倍率之測定，分別於發泡前後 之厚度中扣除補強材之厚度予以計算。 實姓6_：8: - 如表1中所示的加工條件，其組成物同實例5。 實…例9 _: 本製程所得到的連續捲式EVA發泡體，如附第2圖。由 薄膜產生器1製成的薄膜2經發泡後連續捲取而得連續捲式 發泡體3。 比較例 1 · 其組成物如實例1，加工條件如表2中所示，其製程如 傳統之射出成型發泡製程，但未貼合補強材。 比較伤d 2 _ 4 : 其組成物如比較例1，加工條件如表2中所示。 比較例 5 : 其組成物如實例1，加工條件如表2中所示，其製程如 傳統之射出成型發泡製程，但另行加工貼合補強材。 比較例 6 - 8 : 其組成物同比較例5，加工條件如表2中所示。 比較例9 : 依類似於本國專利公告第1 8 3 1 6 1號之製法，如附第1 圖中所示。將製得的發泡體裁切成一片片的發泡平板，再 將發泡平板兩端抵緊，以電熱刀片穿過平板間的端接線， 使端接線處迅速熔接，以成為連續發泡平板。442521 V. Description of the invention (5) In addition to Example 1, increase the peel strength between the EVA foam and the reinforcing material and the burst strength of the composite foam. In addition, for the determination of the expansion ratio, the thickness of the reinforcing material is subtracted from the thickness before and after the expansion to calculate. Real name 6_: 8:-The processing conditions shown in Table 1 have the same composition as in Example 5. Example ... _: The continuous roll-type EVA foam obtained in this process, as shown in Figure 2. The film 2 made of the film generator 1 is continuously wound up after being foamed to obtain a continuous roll-type foam 3. Comparative Example 1 · Its composition is as in Example 1, processing conditions are shown in Table 2, and its manufacturing process is the traditional injection molding foaming process, but the reinforcing material is not bonded. Comparative damage d 2 _ 4: Its composition is as in Comparative Example 1, and processing conditions are shown in Table 2. Comparative Example 5: The composition is as in Example 1, and the processing conditions are shown in Table 2. The manufacturing process is the same as the conventional injection molding foaming process, but the reinforcing material is processed separately. Comparative Examples 6-8: The composition is the same as Comparative Example 5, and the processing conditions are shown in Table 2. Comparative Example 9: According to a manufacturing method similar to the National Patent Publication No. 18 3 1 61, as shown in the attached figure 1. The obtained foam is cut into pieces of foamed flat plates, and then the two ends of the foamed flat plates are pressed against each other, and the electric wires are used to pass through the terminal wires between the plates, so that the terminal wires are quickly welded to become continuous foamed plates. .
第10頁 442521 五 、發明說明 (6) '结 果 比 較 1 由 表 1與表 2的 實 例 1- -4與比較例 1-4之 比 較 > 本 發 明 之 連 續 捲 式 的 發 泡 製 法 與 傳 統 的 發 泡射 出成 型 製 法 所 得 的 產 品 在 相 同 的 發 泡 倍 率 下 其 物 性 相當 。但 本 發 明 之 製 法 不 僅 製 程 簡 易 I 可 在 常 壓 下 以 開 放 方式 連續 生 產 生 產 效 率 〇 2. 由 表 1與表 1的 實 例 5- -8與比較例5 - 8之 比 較 > 本 發 明 之 連 續 捲 式 的 發 泡 製 法 與 傳 統 的 發 泡射 出成 型 製 法 所 得 的 產 品 在 相 同 的 發 泡 倍 率 下 其 部 分 物性 相當 但 由 於 貼 合 方 式 的 差 異 本 發 明 之 製 法 所 得 之 產品 的剝 離 強 度 比 傳 統 的 發 泡 射 出 成 型 製 法 所 得 的 產 品 要 好， 顯見 本 發 明 之 製 法 不 僅 具 有 經 濟 效 益 且 產 品 性 質 更 好 0 3. 由 實 例 9與比較例9得 知 市 面上 有所 謂 的 E V A發泡 體 連 續 材 乃 是 將 EVA發泡體經裁切成薄片後再逐片熔接 _ 而 成 其 接 合 處 會 有 外 觀 不 良 強 度較 弱之 缺 點 但 本 發 · 明 之 製 法 能 製 得 強 度 均 一 無 接 縫 之 連續 捲式 EVA發泡體 相 較 之 下 J 本 發 明 之 製 法 不 僅 製 程 簡易 ，具 有 經 濟 效 益 且 產 品 性 質 更 好 〇 4. 由 比 較 結 果 可 知 本 發 明 之 製法 與傳 統 製 法 比 較 其 特 色 在 製 法 簡 易 可 在 常 壓 下 以 開放 方式 連 續 生 產 ? 生 產 效 率 高 > 進 而 製 出 強 度 均 一 無 接 縫之 連續 發 泡 體 9 極 具 經 濟 價 值 〇Page 10 442521 V. Description of the invention (6) 'Result comparison 1 From the comparison of Examples 1--4 and Comparative Examples 1-4 in Table 1 and Table 2 > The continuous roll foaming method of the present invention and the traditional The products obtained by the foam injection molding method have the same physical properties at the same expansion ratio. However, the production method of the present invention is not only a simple process. I can continuously produce production efficiency in an open manner under normal pressure. 02. Comparison of Examples 5--8 and Comparative Examples 5-8 from Tables 1 and 1 > The products obtained by the roll-type foaming method and the conventional foam injection molding method have the same physical properties at the same expansion ratio, but due to the difference in the bonding method, the peel strength of the product obtained by the method of the present invention is higher than that of the traditional foam The product obtained by the injection molding method is better. It is obvious that the method of the present invention has not only economic benefits but also better product properties. 3. From Example 9 and Comparative Example 9, it is known that there is a so-called EVA foam continuous material on the market. The foam is cut into thin slices and then welded piece by piece. The joint has the disadvantage of poor appearance and weak strength, but the method of the present invention can produce uniform strength without joints. Compared with the continuous roll-type EVA foam, the method of the present invention is not only simple in process, but also has economic benefits and better product properties. 4 From the comparison results, it can be seen that the method of the present invention is simpler in comparison with the traditional method. Can continuous production be carried out in an open manner under normal pressure? High production efficiency > Further, the continuous foamed body 9 with uniform strength and seamless joints has great economic value.
4 42 52 1 圖式簡單說明 第1圖係習知EVA發泡體之製造流程示意圖。 第2圖係依本發明實施例的EVA發泡體之製造流程示意圖。 第3圖係依本發明實施例的EVA發泡體之製造流程方塊圖， 其中不貼補強材。 第4圖係依本發明實施例的EVA發泡體之製造流程方塊圓， 其中貼補強材。4 42 52 1 Brief Description of Drawings Figure 1 is a schematic diagram of the manufacturing process of a conventional EVA foam. FIG. 2 is a schematic diagram of a manufacturing process of an EVA foam according to an embodiment of the present invention. FIG. 3 is a block diagram of a manufacturing process of an EVA foam according to an embodiment of the present invention, wherein no reinforcing material is attached. FIG. 4 is a square circle of the manufacturing process of the EVA foam according to the embodiment of the present invention, in which a reinforcing material is pasted.