The purpose of the diploma thesis is to investigate and determine the causes of the unrevalling of hygienic tampons on the basis of analysis performed on tampons, made of three different raw materials. All samples are the same product – Applicator cotton/organic tampon with the same specification. Only difference between them is length of cotton fibres.
The theoretical part covers the presentation of hygienic tampons in general (description, division, dimensions and technological procedure for the production). The experimental part includes all the performed laboratory methods for testing the quality of hygienic tampons. In the last part of diploma are presented results with discussion.
With testing the length of the fibers, the following results were obtained: the average length of a cotton fibers Virgen is 24,1 mm. Cotton fibers Blend have a length of 22,8 mm, while the fibers Comber have a length of 15 mm. Tampons of Virgen fibers have a weight of 1,65 g. Tampons of Blend fibers have a weight average 1,69 g, and tampons of Comber fibers 1,60 g. The following results were obtained with methods for measuring the dimensions of tampons (diameter and length): a length of tampons Virgen measure 46,38 mm. Tampons Blend measures 46,45 mm and the avrage length of Tampons Comber measure 46,33 mm. Diameter of tampons Virgen measures 11,59 mm, and the diameter of tampons Blend is 11,43 mm. Tampons Comber have an average diameter of 11,66 mm. We obtained the following results with the laboratory method for testing stability of tampons: the average stability of tampons Virgen is 15,68 N. Tampons Blend have an average stability of 16,46 N. The measurements are in accordance with the requirements (min 10N). The mean value of stability of tampons Comber is 9,15 N and deviates from the required value. We also measured the absorption ability of tampons. Mean absorption values of tampons Virgen is 7,23 and is in accordance with the requirements (6,00-9,00 g). The mean absorption value of tampons Blend is 7,27 g. The mean value of absorption of tampons Comber is 6,76 g and is in accordance with the requirements. Important results were obtained by testing the force required for tampon stratification. The value of force needed for unrevalling of tampons Virgen measure 15,14 N. The force needed for unrevalling of tampons Blend is 14,59 N and the value of force needed for unrevalling of tampons Comber is 7,62 N.
The lenght of fibers has the greatest influence on the tampons stratification. Results have shown that the force needed for tampons unrevalling, depends on the raw material of the tampon. Tampon consisted on short fibers, in more rapidly split.
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