Preparation of fibre beam for polypropylene cigarette containing water-soluble high polymer

Abstract

The invention provides a method for preparing tow which is used for polypropylene and contains water-soluble polymer, belonging to the field of preparation technique of cigarette filter. Part of the water-soluble polymer tow consists essentially of the water-soluble polymer, flatting agent, coupling agent, rheology control agent and polypropylene; during the preparation process, the raw material is mixed, granulated and then co-mixed with the polypropylene by proportion for spinning; furthermore, the post processing is carried out by a hot water bath, thus dissolving out part of the water-soluble polymer. The internal fiber structure of the tow used for the polypropylene prepared by the method has obvious filtration effects on the tar in smoke and aldehydes, hydroxybenzene and the like with small molecules, reduces the content of the tar, improves the cigarette taste and the grade of the product, and achieves the special requirement of the cigarette.

Description

technical field [0001] The invention relates to a method for preparing a water-soluble high polymer-containing polypropylene tobacco tow used for cigarette filters. Background technique [0002] At present, the tobacco industry pays more and more attention to the selection of cigarette filter materials, and the requirements are getting higher and higher. The requirements for this kind of material are not only good filtering effect, obvious effect of reducing tar and harm, but also good effect on cigarette smoking. it has been improved. The earliest cigarette filter material mainly used acetate fiber tow, but due to its limited raw materials, complex production process, large investment and other reasons, it has been partially replaced by polypropylene tow in recent years. Polypropylene tow is non-toxic and non-toxic. The utility model has the advantages of low price and obvious filtering effect, and can basically meet the requirements of cigarette materials. However, due t...

AI Technical Summary

Problems solved by technology

The earliest cigarette filter material mainly used acetate fiber tow, but due to its limited raw materials, complex production process, large investment and other reasons, it has been partially replaced by polypropylene tow in recent years. Polypropylene tow is non-toxic and non-toxic. Inexpensive, with obvious filtering effect, can basically meet the requirements of cigarette materials

However, due to the inherent structural defects of polypropylene, its selective adsorption performance is poor, and its comprehensive performance is not as good as that of acetate fiber tow, so it can only be used for low-grade cigarettes

[0003] In recent years, the modification technology of polypropylene tow has made great progress, and the modified glued filter rod produced also solves the problem of loose fibers, difficult cutting, inability to connect to high-speed cigarette machines and problems in conventional polypropylene filter rods. Residual smoke recovery and other issues, but its modification technology is limited to the addition of polymer compounds containing hexanoyl groups or adding some fillers, but these can only improve the strength and elongation of PP, and improve its processing performance; In the process of treatment, surface modification is carried out again, which has made some progress in reducing coke and reducing harm, but the performance improvement is limited, and there are still deficiencies in selective adsorption and odor improvement.