A kind of medical film base and its application

Abstract

The invention provides a film base of a medical film and application of the film base. One surface of a base material is coated and cured with a back layer coating solution containing resin, an antistatic agent, a curing agent, particles, a leveling agent and deionized water to form a back layer; the particles consist of water-borne wax and silica sol; the particle size of the water-borne wax is 0.01 to 0.5mu m; the particle size of silicon dioxide is 0.05 to 0.5mu m; the weight ratio of the water-borne wax to the silica sol is (1 to 2) to (1 to 5). The film base provided by the invention has excellent mass passing capability, thinner coating and good adhesiveness.

Description

technical field [0001] The invention relates to the medical field, in particular to a medical film base. Background technique [0002] With the continuous development of medical imaging technology, the demand for medical film is gradually increasing. From wet medical film to dry medical film and dry medical digital film. Traditional wet medical films mainly refer to silver halide photosensitive medical films, which are easily affected by external environmental factors and turn black due to long-term oxidation, making storage difficult. The imaging process of the film needs to be completed by developing and fixing, and the waste liquid is generated during the developing and fixing process of the film, which pollutes the environment. Dry medical film does not need to be processed by developing and fixing solution like wet medical film. It is a new type of digital imaging medical film processed by thermal, laser or inkjet printing. The processing process is environmentally f...

AI Technical Summary

Problems solved by technology

The machine performance and adhesion of medical film are very important, otherwise it will easily cause adhesion and particle shedding during the printing process of medical film, resulting in greatly reduced printing quality and efficiency, and easy to damage the print head

[0004] In addition, the requirements for environmental protection, light weight and cost reduction of medical dry film are becoming more and more obvious. The back layer of traditional medical film is coated with solvent-based coating liquid, which is not environmentally friendly, and the adhesion of the coating liquid is not good. , the substrate needs to be pretreated before the back layer coating, which increases the cost; the other type is to apply a water-based and environmentally friendly coating liquid, but in order to ensure the machineability, the coating is too thick and the particles of the back layer are too large. Particles fall off in some places, which is easy to damage the print head

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