Release agent coating process method

Abstract

The invention relates to a release agent coating process method. The invention has good compatibility with a solvent by adopting octadeca-carbamic acid esters, good release effect and capability of recycling the solvent, adopts a preparation method of child-mother liquor and a manufacturing method of a sandwiching heat-preservation reaction kettle and is easy to disperse after dissolution without generating sediments and more uniform for coating; a hot-water circulation sandwiching silicon groove is adopted, and a silicon solution is ensured to be more than 40 DEG C so as to not sediment, therefore nonuniform coating quantity caused by the sediments is precluded in the coating process. The coating method changing an original plain guide roller into a 350 mesh reticulated mottle guide roller matched with a scraper reduces the coating quantity of a release agent from original 7-9g / m<2> to current 2-4g / m<2> and uniformly scrapes an extremely thick release solvent positioned on a smooth roller, thereby not only saving the release agent more than doubling, but also enabling the coating to be more uniform; and in addition, the invention develops the release effect into optimal effect, greatly reduces the cost of raw materials and also ensures the quality.

Description

technical field [0001] The invention relates to a release agent coating process, in particular to a coating material in the method step, the preparation of the coating material and the process of coating the coating material on a cloth blank. Background technique [0002] The release coating process refers to the use of rubber rollers to flatten and compress the smooth surface guide roller of the cloth release agent, and then drive the two rollers through the motor transmission, and the two rollers are driven in reverse, and the torque motor is used to wind up. The release agent is transferred to the surface of the cloth with a guide roller, and the solvent in the release agent is dried in an oven to form a solidified layer on the cloth to achieve the release effect. [0003] The release agent is to enable the tape to be unrolled smoothly, otherwise the tape will not be unrolled and cannot be used normally. [0004] In the prior art, the release coating material is polymeth...

AI Technical Summary

Problems solved by technology

[0016] Using the release coating method of the smooth guide roller, the smooth guide roller cannot be pressed too tightly, and it is difficult to control its tightness and balance. Due to many factors such as the uniform coating of the release agent on the cloth, the gloss is often used The surface guide roller is loosened, resulting in an excessive amount of release agent, resulting in excessive cost pressure:

[0017] Using the normal temperature coating method, when the weather temperature drops, the release agent will precipitate when it is cold, resulting in extremely uneven coating, and the solute often fluctuates, which seriously affects the release of the tape. Too light or too heavy, and often Make it impossible to unwind the product, resulting in a large number of products being scrapped;

[0018] The curing time in the oven is short. Since the length of the oven is only 6 meters, the solvent of the release agent on the surface of the cloth cannot be dried, which makes the release agent very difficult to cure and easily causes the transfer of the release agent.

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