What are the requirements for paper fibers to prevent the burst color of the transfer layer? Answer: Generally, the fibers of the paper are long fibers, and their flexibility is good. Coniferous and broad-leaved pine are the most suitable. And it needs to be arranged vertically according to the fiber direction to basically meet the transfer paper cut into small sheets without color burst (finger pressure burst aluminum layer, because the ink covers the surface of the transfer aluminum layer, the color burst can be more clearly seen), without distortion. What are the requirements for the moisture content of paper to prevent the transfer layer from exploding? Answer: The moisture content of the backing paper is too high, the indoor temperature and humidity are unstable, the transfer paper is easily deformed, and the ruffled edge shape is uneven. The moisture content of the transfer paper will be released to varying degrees with changes in storage time and storage temperature. The excessive moisture released from the transferred product will cause the paper fibers to become relatively hard and brittle. After die-cutting indentation, the hardened paper fibers at the indentation will be damaged to varying degrees. Generally, the moisture content of the transfer paper is controlled at 6%, the temperature of the printing workshop is controlled at 18 ° C to 25 ° C, and the humidity is controlled at 60% ± 5%. What are the requirements for the amount of adhesive applied to prevent the burst color of the transfer layer? Answer: The adhesion of the aluminum layer on the surface of the transfer paper mainly depends on the adhesion performance and coating amount of the initial drying of the adhesive. At the same time, the amount of coating also directly affects the color burst phenomenon. Too little coating amount, the amount of adhesive penetrating into the paper is small, the transfer aluminum layer is not easy to completely peel off, the film-forming layer after drying is thin, and it is not easy to resist strong pressure If the amount of cloth is too large, it is easy to squeeze the glue when the paper is combined with the film. If the oven temperature is not adjusted properly, the film formation is relatively poor, and the connection with the aluminum layer is not strong. Different coating amounts should be selected according to different papers. For example, for single-sided coated white cardboard with a basis weight of 225g / m2, the surface finish is high, the fibers are closely arranged, and the stiffness is good. The instantaneous absorption performance of the paper surface Poor, the amount of glue should not be too large, generally controlled at 1.5g / m2 ~ 2.0g / m2; for paper with poor surface finish, the amount of glue is generally 2.0g / m2 ~ 2.5g / m2. What are the requirements for adhesive performance to prevent transfer layer burst color? Answer: At present, most of the transfer paper used in China is a wet transfer method. That is, the transfer adhesive is applied to the aluminum layer of the transfer film or the surface of the paper, and then compounded with the paper or the transfer film, and then dried off in an oven before offline peeling or The compounding and transfer of direct stripping. (1) Requirements for the initial drying performance of the adhesive: After the compounded paper passes through the oven, the adhesive should be dried to form a film under certain temperature control conditions, and the adhesive and the paper and the transfer aluminum layer after the initial drying The adhesion is fast enough to completely peel the transferred aluminum layer. (2) Viscosity requirements for adhesives: At present, there are many production equipments for producing transfer paper in China, including dry lamination-peeling, wet lamination-peeling, film coating or paper coating, etc., no matter which method is used for production Transfer paper is more important to control the viscosity of the adhesive. The viscosity of the adhesive is too low and the speed of the vehicle is too fast. It is easy to squeeze the glue when passing through the composite roller and affect the adhesion strength of the colloid. If the viscosity of the adhesive is too high and the vehicle speed is too fast, the coating will be uneven, affecting the transfer of the aluminum layer and causing incomplete peeling. Therefore, it is necessary to select an appropriate adhesive viscosity according to different compounding methods, drying methods, and coating methods. A training desk is a table designed specifically for activities such as training and meetings. It has characteristics such as durability and ease of movement, which can meet the needs of different groups of people. Training desks can be classified into various categories based on their materials, structure, and other aspects. Below will be a brief introduction to the classification of training desks. Training Table,Tea Table,Coffee Table,Visitor Table Foshan Shengshi Zhihui Technology Co., Ltd. , https://www.szhfurniture.com
For the wet transfer method, the initial drying performance, drying performance, film forming performance, water resistance performance (water is not easy to re-dissolve after drying), solvent resistance performance, anti-ultraviolet radiation performance, anti-friction performance High-strength pressure performance and high temperature resistance are required. The specific requirements for the main performance are as follows.
1. Material classification
The materials of the Training Chair mainly include wooden boards, PVC boards, etc. Training desks made of wood usually have strong stability and durability, making them suitable for long-term meetings or training activities. The training table made of PVC board has certain safety performance and is generally more lightweight.
2. Structural classification
The structure of training chairs mainly includes single tables, combination tables, etc. A single chair is the most common training table, and each training table is independent and can be adjusted as needed. Combination refers to the combination of multiple seats together, usually in the form of geometric shapes or rows, suitable for use in large training venues. A stackable table is a training table that can be folded and placed together, saving space and facilitating storage and handling.