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Coating Method Of Coated Fabric
- Jul 04, 2017 -

The coated fabric belongs to the composite material, which can be considered as a simple two-layer fabric. The next layer is the base fabric, the top layer is coated.

Different coatings have different effects, of course, the coating will have enhanced effect. So that should be more durable.

Coated fabric coating method should be selected according to product requirements, common coating methods are the following. ① dry method. This method is a traditional process, the method is relatively simple, as long as the coating agent with solvent or water dilution as required concentration, Coated Woven Fabric and add the necessary agents and colorants dubbed coating, coated with a coater evenly coated on the cloth , And then by drying, baking, so that the solvent or water evaporation, in the base fabric to form a layer of tough film. The process is: the base cloth on a coating of a drying a rolling (or copy) a cooling a finished roll. ② wet method. A coating agent is prepared by dissolving a coating agent (e.g., polyurethane) with dimethylformamide (dmf), and then immersed in water to form a coagulating film. As dmf and water infinite immiscible, dmf dissolved in water, and polyurethane insoluble in water, Coated Woven Fabric the concentration increased rapidly, and finally deposited on the base fabric above. During the solidification of the coating, dmf exudes sharply from the polyurethane due to the action of the semipermeable membrane, resulting in channel pores perpendicular to the surface of the film. Therefore, the surface of the polymer film is porous, and if the diameter of these microporous bodies is controlled within 0.5 to 5 minutes, it is possible to produce both a breathable and watertight and moisture permeable cloth. The process of the wet coating is: the base cloth is coated with a coating and immersed in an aqueous solution to coagulate a dry one and cool a finished product. Coated Woven Fabric It is the thermoplastic resin as a coating agent coated on the base fabric, when used, with hot pressing roll or iron hot pressing, so that the original coated on the base of the dot-like, linear or mesh resin again melted , Bonded to the fabric in the processing, commonly used in bonding collar lining. The process flow varies depending on the coating method, the common are the following: 1) dusting method. Is the powder resin with electromagnetic vibration device, so that the powder evenly spread on the base fabric, and then do not touch the oven (or infrared tube) for fixation. This method commonly used ethylene-vinyl acetate coating agent, referred to as eva lining cloth processing. 2) powder point method. Is coated on two hot rollers and one engraving roller combination. The upper part of the carving roller has a coating agent and a scraper, and the resin falls into the embossed groove of the engraving roller, and the fabric is heated by the roll. The cloth temperature reaches 160 to 180C, Coated Woven Fabric and the powder is finished at the moment of contact with the engraving roller. Point of the transfer. The temperature of the hot roller is controlled at 160-240 ℃, the transfer temperature of the nylon powder is about 55 ℃, and the polyethylene powder is about 95 ℃. 3) pulp method. Mainly used for non-woven fabrics, the basic process with the net printing. 4) Transfer film formation method. It is the first coating

Coated on the transfer paper or metal tape pretreated with silicone, and then the base fabric and the transfer paper face to face through the rolling roller transferred to the base fabric, after cooling, the transfer paper and processed fabric separation Serve. The method is mainly used for thin and loose tissue and more sensitive to the tension of a class of fabrics, such as leno, knitted fabrics, nonwovens, etc., Coated Woven Fabric the whole machine running drying equipment are used mesh belt conveyor. The process flow is: transfer paper coated with a paper cloth stacked one roll a cooling of a transfer paper and coated fabric separation roll.