应用说明
热熔胶封边
近十年来在家具生产行业中，使用不同种类的封边条对木质板材进行封边是一项成熟的工艺。封边质量的高标准要求、精美的外观、封边工艺的持续改进以及逐渐多样化的封边材料，这些都对封边胶提出了新的要求。在现代高品质家具制造领域，封边质量的好坏往往是用来衡量家具整体质量的重要因素。最终用户要求封边胶的选择即符合高标准的生产工艺，同时封边后不会留有胶线。
随着现代制造技术的发展，例如激光、等离子处理、热风技术等，行业对于封边工艺提出了“无胶线”的新标准。新的封边技术使用背面带有高分子材料预涂层的封边条，但是这类高分子材料预涂层的封边条存在较大的局限性，通常只适用于热塑性材料，由于连续生产和复杂的生产工艺，所以不能被广泛推广。德国胶王公司为解决此类难题，推出了最新一代创新型的粘合剂产品，不仅适用于新的封边工艺，同时也适用于传统型的粘接工艺，使“无胶线”封边成为现实。
德国胶王公司为解决此类难题，推出了最新一代创新型的粘合剂产品，不仅适用于新的封边工艺，同时也适用于传统型的粘接工艺，使“无胶线”封边成为现实。德国胶王公司无填料的EVA封边热熔胶280.30是一款里程碑式的产品，建立了新的封边胶标准。新型EVA热熔胶280.50因其优异的粘接性能以及良好的机械加工性能，得到了非常广泛的应用。聚烯烃热熔胶能够满足了高耐温性的要求。
德国胶王公司PO聚烃烯封边热熔胶237.10就是这样一款产品，此款产品同样可以被用作传统型的热熔胶像EVA热熔胶一样。德国胶王公司不仅提供传统型的封边热熔胶，同时也提供封边预涂热熔胶，这种预涂热熔胶通过激光、红外线或者热空气处理后进行再激活粘合。
德国胶王公司237.2X（远红外光谱，热空气固化）以及237.9X（激光，远红外光谱，热空气固化）系列热熔胶可以通过刮涂或辊涂的方式涂布于带背涂的封边条上。此类聚烯烃热熔胶，因其优异的粘接性能，适用于所有标准的封边材料，如树脂浸渍纸、木皮、带背涂的封边条。而使用聚氨酯粘合剂进行封边可以达到高的耐温性能和防潮性能。德国胶王反应型聚氨酯热熔胶607.60是一款快速固化的封边热熔胶，具有高初始强度，低温下良好的弹性以及优异的耐溶剂性能。根据周围环境的湿度和材料的含水率，交联反应会持续数天。
产品信息
- EVA hot melt adhesive
- PO hot melt adhesive
- PUR hot melt adhesive
EVA hot melt adhesive
| Base | Viscosity [mPas] / Temperature [°C] | Processing Temperature [°C] | Softening Range (Kofler) [°C] | Density [g/cm³] / Temperature [°C] | Appearance |
Download technical data sheet (PDF) | |
|---|---|---|---|---|---|---|---|
| Jowatherm® 280.00 | EVA Hot Melt Adhesive | 35500 ± 11750 / 200 | 180 - 200 | 90 ± 5 | 1,03 ± 0,03 / 20 | yellow translucent | de en fr |
| Jowatherm® 280.10/11 | EVA Hot Melt Adhesive | 165000 ± 25000 / 200 | 190 - 210 | 100 ± 5 | 1,03 ± 0,02 / 20 | 0 = light beige; 1 = white | de en fr |
| Jowatherm® 280.30/31 | EVA Hot Melt Adhesive | 50500 ± 12500 / 200 | 180 - 200 | 90 ± 5 | 1,03 ± 0,03 / 20 | 0 = yellow translucent; 1 = white | de en fr |
| Jowatherm® 280.50/51 | EVA Hot Melt Adhesive | 85000 ± 13000 / 200 | 180 - 200 | 95 ± 5 | 1,14 ± 0,02 / 20 | 0 = light beige; 1 = white | de en fr |
| Jowatherm® 280.58 | EVA Hot Melt Adhesive | 85000 ± 10000 / 200 | 180 - 200 | 95 ± 5 | 1,00 ± 0,02 / 20 | colourless | de en fr |
| Jowatherm® 284.70/71/72/73 | EVA Hot Melt Adhesive | 85000 ± 20000 / 200 | 190 - 210 | 90 ± 5 | 1,52 ± 0,03 / 20 | 0 = beige; 1 = white; 2 = brown; 3 = black | de en fr |
| Jowatherm® 286.30/31 | EVA Hot Melt Adhesive | 50000 ± 15000 / 200 | 180 - 200 | 90 ± 5 | 1,05 ± 0,05 / 20 | 0 = yellow translucent; 1 = white | de en fr |
| Jowatherm® 286.60/61 | EVA Hot Melt Adhesive | 62500 ± 12500 / 200 | 180 - 200 | 95 ± 5 | 1,30 ± 0,05 / 20 | 0 = beige; 1 = white; 2 = brown; 3 = black | de en fr |
| Jowatherm® 288.60/61/62/63 | EVA Hot Melt Adhesive | 90000 ± 20000 / 200 | 180 - 200 | 95 ± 5 | 1,33 ± 0,05 / 20 | 0 = beige; 1 = white; 2 = brown; 3 = black | de en fr |
PO hot melt adhesive
| Base | Viscosity [mPas] / Temperature [°C] | Processing Temperature [°C] | Softening Range (Kofler) [°C] | Density [g/cm³] / Temperature [°C] | Appearance |
Download technical data sheet (PDF) | |
|---|---|---|---|---|---|---|---|
| Jowat-Toptherm® 227.30 | PO Hot Melt Adhesive | 100750 ± 20000 / 200 | 190 - 210 | 135 ± 5 | 1,10 ± 0,05 / 20 | beige | de en fr |
| Jowat-Toptherm® 237.10/11 | PO Hot Melt Adhesive | 85500 ± 14000 / 200 | 180 - 200 | 130 ± 5 | 1,10 ± 0,02 / 20 | 0 = beige, 1 = white | de en fr |
| Jowat-Toptherm® 237.70/71/72/73 | PO Hot Melt Adhesive | 83000 ± 10000 / 200 | 170 - 200 | 130 ± 5 | 1,23 ± 0,05 / 20 | 0 = light beige; 1 = white, 2 = brown, 3 = black | de en fr |
| Jowat-Toptherm® 221.00 | PO Hot Melt Adhesive | 23200 ± 2200 / 200 | 115 ± 5 | 0,90 ± 0,03 / 20 | yellow | de en fr | |
| Jowat-Toptherm® 237.50 | PO Hot Melt Adhesive | approx. 95.000 / 140 | 190 - 210 | approx. 125 | approx. 0,9 | colourless | de en fr |
PUR hot melt adhesive
| Base | Viscosity [mPas] / Temperature [°C] | Processing Temperature [°C] | Softening Range (Kofler) [°C] | Density [g/cm³] / Temperature [°C] | Appearance |
Download technical data sheet (PDF) | |
|---|---|---|---|---|---|---|---|
| Jowatherm-Reaktant® 607.40/41/45 | PUR Hot Melt Adhesive | 77500 ± 22500 / 140 | 130 - 150 | 70 ± 5 | 1,35 ± 0,05 / 23 | 0 = beige; 1 = white; 5 = pure white | de en fr |
| Jowatherm-Reaktant® 607.50/51 | PUR Hot Melt Adhesive | 75000 ± 25000 / 140 | 130 - 150 | 70 ± 5 | 1,35 ± 0,05 / 23 | 0 = beige; 1 = white | de en fr |
| Jowatherm-Reaktant® 607.60/61 | PUR Hot Melt Adhesive | 75000 ± 25000 / 140 | 140 - 160 | 80 ± 5 | 1,32 ± 0,05 / 20 | 0 = beige; 1 = white | de en fr |
| Jowatherm-Reaktant® 608.00/01 | PUR Hot Melt Adhesive | 90000 ± 20000 / 120; 42500 ± 7500 / 140 | 100 - 120 | 65 ± 5 | 1,1 ± 0,1 / 23 | 0 = yellowish opaque; 1 = white | de en fr |
The products listed only represent a limited selection of the available product portfolio. Product availability might differ by region. The technical data, characteristics and field of application provided in the table outline the differences between the individual adhesives of the product portfolio. Our Application Technology Department and our Sales Representatives are on hand to provide advice and support you finding the best adhesive for your particular application.
Note: The information on this page is based on test results from our laboratories as well as on experience gained in the field, and does in no way constitute any guarantee of properties. Due to the wide range of different applications, substrates, and processing methods beyond our control, no liability may be derived from these indications nor from the information provided by our free technical advisory service. Customer trials under everyday conditions, testing for suitability at normal processing conditions, and appropriate fit-for-purpose testing are absolutely necessary. For the specifications as well as further information, please refer to the latest technical data sheets.
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Application Tips
Directions for use
PUR hot melt adhesives can be processed on throughfeed lines at different feed speeds, as well as on roller and nozzle applicators. All parts of the melting and application units coming into contact with the adhesive should have a non-stick coating to prevent possible catalytic reactions due to metal contact. A non-stick coating will also facilitate a considerably easier cleaning.
The melting and application units should be equipped with a precise temperature control to prevent local overheating and unwanted secondary reactions. Heating the adhesive to a temperature above the recommended processing temperature will usually lead to a fast increase in viscosity of the melt due to a so-called thermal crosslinking reaction in the adhesive (the allophanate reaction), which is triggered by heat and does not need moisture.
Cleaning
If necessary, flush out hot melt remnants from the melt and applicator units with flushing agent Jowat® 930.94 (red). Crosslinked, solid material has to be dissolved with cleaner Jowat® 930.60 (please test for suitability before use).
See our Jowat Manual with Tips and Video How To Guide for cleaning problems and helpful tips for adhesive changes
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