A refinement process for methyl cellulose

Abstract

The invention discloses a refinement process of methyl cellulose, which comprises: adding methyl cellulose to ethanol aqueous solution and stirring evenly, and filtering to obtain a solution; adding ethyl cellulose to the solution and stirring evenly to obtain a mixed Then spray the mixed solution evenly in the reaction kettle, let it settle at a constant temperature, and blow off the tail with hot nitrogen to obtain mixed cellulose particles; add the mixed cellulose particles to ethylbenzene and stir evenly, filter and air-dry until the surface is dry , to obtain porous methylcellulose particles, and then spray water mist on the surface to make the surface of methylcellulose sticky, and dry to obtain wrapped methylcellulose; add wrapped methylcellulose into a sealed reaction kettle, pressurize at constant temperature 10-30min, constant temperature and pressure relief to obtain crushed methyl cellulose. The invention solves the problem of unstable performance of the methyl cellulose, uses spray solidification combined with expansion and crushing to realize further reduction of the particle size, and improves the particle size and particle size distribution uniformity of the methyl cellulose.

Description

technical field [0001] The invention belongs to the field of material labels, and in particular relates to a process for refining methyl cellulose. Background technique [0002] In the production process of logistics labels, methyl cellulose is one of the most commonly used raw materials. There are various sizes of methyl cellulose on the market, and there are certain differences in the production processes adopted by different manufacturers. The purity of methyl cellulose produced There are also slight differences. Mixing them will easily lead to a decline in the quality of material labels. Contents of the invention [0003] Aiming at the problems in the prior art, the present invention provides a thinning process of methyl cellulose, which solves the problem of unstable performance of methyl cellulose, and uses spray solidification combined with expansion and crushing to achieve the effect of further crushing and realize The further reduction of the particle size increa...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the prior art, the present invention provides a thinning process of methyl cellulose, which solves the problem of unstable performance of methyl cellulose, and uses spray solidification combined with expansion and crushing to achieve the effect of further crushing and realize Further decrease in particle size, increase the particle size and uniform particle size distribution of methyl cellulose