湿膜压纹工艺技术的应用

Application of Wet Film Embossing Process Technology

湿膜压纹工艺是指载有无溶剂粘稠状的树脂涂料的基材在包覆成型模具时,涂料与模具的微细图案面接触,复制模具图案,同时施以光固化、电子辐射等固化手段,使涂层瞬间固化,并保持模具微细图案的形状,逐渐从模具上剥离,制得表面附有特殊图案的涂层产品的工艺过程。湿膜压纹工艺在显示器用功能薄膜、电子产品装饰膜(IML)、皮革离型纸、LED照明用增光板等产品的生产中起着重要作用。当今显示行业、IML行业市场、人造皮革花型复型性要求提高、低能耗LED照明产品逐步普及,湿膜压纹工艺的应用领域也日益扩大。本文将着重介绍湿膜压纹工艺中软模与硬模的工艺特点、关键技术以及其应用于增亮膜(棱镜膜)、微棱镜膜、防眩膜生产的最新进展。

Wet film embossing refers to the process that coating contacts with fine pattern surface of the mold, when the substrate containing viscous resin coating and solvent free is feed into the mold, the pattern of the mold is copied, the coating is cured instantly with light curing, electron radiation curing method and maintains fine pattern shape of the mold, gradually strips from the mold, the product with special pattern surface is prepared. Wet film embossing technology plays an important role in functional films for display screen, decorative films for electronic products （ IML ）, release paper for artificial leather, Brightening plate for LED lighting and so on. The display industry, IML industry market, artificial leather flower type complex require- ments increase, and low power LED lighting products is gradually popularized. Wet film embossed technology application also expands increasingly. This article will focus on the introduction of technology characteristics, key technology about soft mold and hard mold and its application in the latest production progress of the brightness enhancement film （prism film）, micro prism film, antiglare film.