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FORMATION OF HYDROPHOBIZED LEATHER OF SPECIAL PURPOSE

机译：形成特殊用途的疏水化皮革

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摘要

The influence of the chemical composition of the alkene-maleic composition on the water resistance, hygienic and physico-mechanical properties of the hydrophobized chrome tanned leather obtained from the leather of open cow is studied. It is established that hydrophobization of the leather semi-finished product with an alkene-maleic composition significantly increases the water resistance of the obtained leathers compared to unmodified ones, which results in an increase in the water-bathing time in dynamic conditions 35-47 times depending on the thickness and stability of the elastic-plastic properties of the leather during cyclic watering-drying. It is shown that with an increase in the thickness of hydrophobized leather from 1.8 to 2.4 mm, the water vapor permeability and air permeability decrease, respectively, by 1.2-1.6 and 1.5-1.7 times, at the same time, their hygroscopy increases by 10%. The complex physico-mechanical and hygienic properties of the leather, formed by the developed technology of hydrophobization of the chrome semi-finished product using alkene-maleic composition, meet the requirements of DSTU 2726-94 Leather for shoes and DSTU 3115-95 Leather for garments. As a result of the research, a technology for hydrophobization of semi-finished chrome tanned leather can be implemented in industrial production for the manufacture of water-repellent leather for special purposes.
机译：研究了烯烯 - 马来型组合物对疏水化铬鞣制皮革耐水性，卫生和物理机械性能的影响。建立具有烯烃 - 马来基组合物的皮革半成品的疏水化显着提高了所获得的皮革的耐水性与未修饰的皮革相比，导致动态条件下的水泳时间增加35-47次根据皮革干燥期间皮革弹性性能的厚度和稳定性。结果表明，随着疏水化皮革的厚度增加，水蒸气渗透率和透气性分别降低1.2-1.6和1.5-1.7次，同时它们的吸湿性增加10 ％。皮革的复杂物理 - 机械和卫生特性，由铬半成品疏水化的疏水化技术采用烯丙基 - 马来组成，满足DSTU 2726-94皮革的要求和DSTU 3115-95皮革服装。由于研究，可以在工业生产中实施用于特殊目的的防水皮革的工业生产中的疏水化技术。

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