| 镭射膜的涂布工艺 |
| 添加时间：2019/1/25 14:48:44 浏览次数： |
Coating Technology of Laser Film 一般镭射膜有两种材质，分布为BOPP和BOPET。BOPP可以直接在上面压镭射图文，而BOPET则不行，如果要在BOPET基膜上压镭射图文，就要先在PET基膜上涂布非常薄的专用涂料，然后再压镭射图文。而涂布专用涂料过程中，既要保证合适的黏度，同时对涂布环境有较高要求，如密封、无尘、恒温、恒湿等。 In general, there are two kinds of materials for laser film, BOPP and BOPET. BOPP can directly press the laser image on it, but BOPET can not. If you want to press the laser image on the BOPET base film, you must first coat the PET base film with very thin special coating, and then press the laser image. In the process of coating special coatings, it is necessary to ensure the appropriate viscosity, and at the same time to have higher requirements for the coating environment, such as sealing, dust-free, constant temperature, constant humidity, etc. liantiaox.jk56.org xiekou.jk56.org kagu.jk56.org zhadai.jk56.org diaojuz.jk56.org xipan.jk56.org 压镭射图文 Laser Pressure Graphics and Texts 压镭射图文的原理是在高温下将镭射模压版直接压在薄膜基材或专用涂料上，形成高低不平、大小不一的光折射点，光照后，不同波长光线的漫反射会使镭射膜呈现彩虹光芒。 The principle of pressing laser pictures and texts is to press the laser moulding plate directly on the film substrate or special coatings at high temperature to form uneven light refraction points of different sizes. After illumination, the diffuse reflection of different wavelengths of light will make the laser film show iridescent light. 压镭射图文时，要掌握好温度、速度、张力三个要素，如果这三个要素控制不够精确，就会产生严重的色差、黑斑、白斑、水纹、褶皱、云彩花、麻点等问题，有时候也会出现镭射图文和光柱变形以及张力不稳定等质量缺陷。这些缺陷会给后道印刷带来很大麻烦，甚至会使镭射膜无法投入印刷生产中。 When pressing laser pictures and texts, we should master the three elements of temperature, speed and tension. If these three elements are not controlled accurately, serious problems such as chromatic aberration, black spot, white spot, water marks, folds, clouds, pockmarks, etc. will occur. Sometimes, quality defects such as laser pictures and light column deformation and tension instability will also occur. These defects will bring great trouble to back-channel printing, and even make the laser film unable to be put into printing production. |
| 上一页 镭射膜的加工工序概括 |
| 下一页 镭射包装膜具有强烈的视觉冲击效果 |
Copyright © 技术支持：遨游网络