METHOD OF CHANGING LENGTH OF WORKING PART, AND ALSO LOOP OF WORKLIFE OF WORK PARTS OF ART BRUSH BEAM AND ART BRUSH FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC A46B9/00 

FIELD: human vital needs satisfaction.

SUBSTANCE: essence of the proposed method of changing the length of the working part, as well as the contour of the end part of the hair bundle of the art brush, consists in rigidly fixing the flattened hair bundle in the fastening element, to reinstall the shape of the hair follicle exhibition, the rigid attachment of the hair bundle (during the change in its characteristics Shape of the terminal portion of the flattened hair set). The implementation of the proposed method is carried out as follows. As an element that provides both a rigid fixation of the bundled hair bundle and the elimination of rigid attachment of the hair bundle, a thermoplastic glue 5 is used (the amount of glue 5 is determined experimentally). It at room temperature rigidly fixes the flattened hair bundle 3 of the art brush, when melting the thermoplastic glue 5, rigid fixation of the flattened hair bundle 3 is eliminated. For the melting of the adhesive, for example, a thermoset can be used (in fig. 1, 2 is not shown) with the brush set in the position shown in fig. 1, 2 (in order to exclude the loss of the end set 3 from the cage). When the glue is in the liquid state, the user is provided with both an exhibition of height and an exhibition of the shape of the end part of the flattened hair bundle 3 without the use of templates or with such (the template is not shown in the drawings). In this case, it is necessary to comply with safety techniques, since the work is done with hot objects. For example, work should be done in thermo-gloves. To exclude changes in the colour of hairs, deterioration in their quality, as well as the quality of the coating pen and holder, etc. the melting point of glue 5 should not be more than 70-80°C. In this case, the smaller the melting temperature of the thermoplastic glue 5, the safer it will be to work with it. After the exposure of the hair bundle 3, the glue 5 is cooled, the hair bundle 3 is rigidly fixed in the cage 1.

EFFECT: expansion of functionality due to the possibility of multiple changes in the length of the working part, as well as the contour of the end part of the hair bundle of the artistic brush in the process of its operation without violating the integrity of the clip.

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