Preparation process of shading diffusion composite film

• Main Authors: HU YOULIAN, GUO YUTAO
• Format: Patent
• Language: Chinese; English
• Published: 25.03.2022
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to the field of preparation of composite films, and discloses a preparation process of a shading diffusion composite film. Comprising the following steps of providing a bearing film, sequentially laying a shading film and shading glue, punching the shading glue and removing waste materials of the shading glue, laying an isolating film, laying a diffusion film, punching the diffusion film, removing punching waste materials of the diffusion film and the isolating film, and punching an outer shape edge and removing the waste materials. The bearing film, the shading film, the shading glue, the isolating film and the diffusion film are sequentially laid and adhered, and the shading glue and the diffusion film are respectively punched, so that the rest parts of the shading glue and the diffusion film after punching and waste discharging are combined, and the rejection rate caused by an attaching error between the shading glue and the diffusion film is reduced. 本申请涉及复合膜制备领域，公开了一种遮光扩散复合膜的制备工艺，包括