Виготовлення водостійкого хутрового матеріалу

Abstract

У роботі досліджено процес наповнювання-жирування водостійкого напівфабрикату хутрового велюру з сировини нутрії шляхом комп’ютерної оптимізації складу композиції на основі алкенмалеїнового полімеру. Для оптимізації складу алкенмалеїново-акрилсинтанної композиції використано модифікований метод МаклінаАндерсона з врахуванням виду математичної моделі й функцію бажаності Харрінгтона. Розроблена технологія виготовлення водостійкого велюру нутрії апробована в умовах дослідного виробництва шкіряного підприємства ПрАТ «Чинбар» (м. Київ).

The paper investigates the process of filling and hydrophobizing water-resistant semi-finished nutria fur velour by computer optimization of the composition based on alkenmalein polymer. Nutria skins with a coarse hair cover of 24–25 dm2 have been used after the removal of the bristles and subsequent chromium-aluminium tanning of the semi-finished product to the welding temperature (Тз) of the skin tissue of 90 С. To optimize alkenmalein acrylsyntane composition, a modified McLean-Anderson method has been used, taking into account the type of mathematical model and the Harrington desirability function. The optimal filling and hydrophobizing structure of the composition has been worked out, which includes, wt. %: alkenmalein polymer - 54.1, Melio Resin A-821 polyacrylic emulsion - 18.8, syntane NS-DS - 27.1 at the consumption, respectively,% of the mass of the pressed semi-finished velour nutria: 10.6, 3.7 and 5.3 at a ratio of semi-finished product / process solution 1 / 7. The developed technology of making waterproof velour nutria has been tested in the conditions of experimental production of leather enterprise Chinbar Private Joint Stock Company (Kyiv). The hydrophobized nutria fur velour has been obtained by the developed technology with a significant increase in water resistance in dynamic conditions and higher yield of the material area by 5.6% compared to the semi-finished product of chromium-aluminium tanning. The use of the offered technology provides a homogeneous elastic material in topographic areas of inhomogeneous heterogeneous porous raw materials. The developed technology of production of hydrophobized nutria fur velour can be effectively used in manufacturing sheepskin and fur and leather materials of higher water resistance. According to the set of properties, the obtained hydrophobized nutria velour is suitable for the manufacture of products for various purposes that can be used in extreme conditions.