Method for measuring dosage uniformity of glyceryl triacetate in cigarette filters

Abstract

The invention discloses a method for measuring the dosage uniformity of glyceryl triacetate in cigarette filters. The method comprises the following steps: (1) sampling, namely taking filter samples of more than 30 batches from a filter forming shop at the same time interval according to the requirement of national standard; (2) placing the samples, namely placing the filter samples in a regulated atmospheric environment stipulated according to national standard for at least 24 hours; (3) sectioning the samples, namely cutting the filters by 1cm-4cm in radial direction, and simultaneously, cutting 1 / 8-1 / 2 of the filters in axial direction; and (4) detecting, namely randomly numbering the prepared inspection samples, detecting the content of glyceryl triacetate in the samples according to the standard of tobacco industry, and finally, evaluating the uniformity. The method can be used for accurately measuring the dosage uniformity of glyceryl triacetate in the filters and further objectively evaluating the technological level of a glyceryl triacetate addition process during the filter forming process, thereby having important significance to improvement of filter forming equipment, enhancement of the level of filter processing technology and stabilization of tobacco product quality.

Description

technical field [0001] The invention belongs to a method for measuring the uniformity of triacetin applied in cigarette filter sticks. Specifically, it is a method for measuring the content of triacetin in the cigarette filter rod after cutting it, and quantitatively evaluating the uniformity of the amount of triacetin in the cigarette filter rod. Background technique [0002] Cigarette characteristic process technology clearly puts forward the requirement of refined processing, and cigarette industry enterprises urgently need to be able to comprehensively detect the additive components in tobacco products, and improve the process level to ensure the uniformity of additive dosage. In the molding process of cellulose acetate filter rods for cigarettes, triacetin is mostly used as a plasticizer. In 2011, the national cigarette output exceeded 50 million boxes, and the amount of plasticizer used was about 17,500 tons. Glyceryl triacetate, as a plasticizer and curing agent, can...

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Problems solved by technology

Among them, the gravimetric method is generally used in the workshop. The gravimetric method takes 10 filter rods as a unit, and the weight ratio of dry and wet rods is used to obtain the application amount of triacetin, but the accuracy is not high; the tobacco industry standard "YC / T331-2010 Determination of glycerol triacetate in cellulose acetate filter sticks by gas chromatography" is detected by gas chromatography with 5 filter sticks as a unit

[0004] The minimum unit of the above detection methods is more than 1 filter rod. The length of a filter rod in the filter rod forming workshop of cigarette industry enterprises is more than 10cm, and the length of the filter rod on the cigarette is about 2cm, which also affects the filter rod connection characteristics. The length of the filter rods for sensory quality and cigarette sensory quality is less than the length of the filter rods produced by the filter rod forming workshop, so the minimum unit for measuring the uniformity of the amount of triacetin in the filter rod must be less than 1, that is, it is necessary to detect triacetic acid in the root of the filter rod Glyceride content, so the test method described above cannot determine the uniformity of the amount of triacetin applied in the stick

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