O‘zbekiston respublikasi oliy va o‘rta maxsus ta’lim vazirligi toshkent to‘qimachilik va engil sanoat instituti

Water resistance is the resistance of textile materials to the initial penetration of water through them. Water resistance can be characterized by: 1. pressure (mm wg. Art.) On the material at which the 3rd drop of water appears on the opposite surface of the sample; 2. The time through which the 3rd drop passes through the material at a given pressure or at a given height of droplets falling on the sample

Vozduxopronitsaemost__Havo_o‘tkazuvchanlik'>Havo o‘tkazuvchanlik Vozduxopronitsaemost	Havo o‘tkazuvchanlik- to‘qimachilik materiallarining uning yuzasiga nisbatan perpendikulyar bosim gradienti mavjudligida havo o‘tkazish qobiliyatini xarakterlovchi xossa. Havo o‘tkazuvchanlik koeffitsienti – 1m^2 namuna orqali, 1 sekundda, bosim (Pa) farqi o‘zgarmagan holatda o‘tadigan havo miqdori (m^3) ko‘rsatkichi.	Vozduxopronitsaemost - svoystvo, xarakteri-zuyuщee sposobnost tekstilnogo materiala propuskat vozdux pri nalichii gradienta davleniya, perpendiku-lyarnogo ego ploskosti. Vozduxopronitsaemosti koeffitsient – pokaza-tel kolichestva vozduxa (m^3), proxodyaщego cherez probu ploщadyu v 1 m^2 za vremya, ravnoe 1 sekunde, pri postoyannoy raznosti davleniy (Pa).	Breathability is a property that characterizes the ability of a textile material to pass air in the presence of a pressure gradient perpendicular to its plane. Air permea-bility coefficient is a measure of the amount of air (m^3) passing through a sample of 1 m^2 in a time equal to 1 second, with a constant pressure difference (Pa).
To‘qimachilik tola Volokno tekstilnoe	To‘qimachilik tola- uzunligiga nisbatan kichik o‘lchamli ko‘ndalangi bilan farqlanuvchan, to‘qimachilik iplari va buyumlarini ishlab chiqarish uchun yaroqli pishiq va egiluvchan jism. Ular quyidagicha farqlanadi: 1-elementar tola – birlamchi tola, o‘qi bo‘yicha egilmasdan bo‘linmaydi; 2-texnik tola – bir qancha parallel joylashgan elemental tolalardan tashkil topgan elimlanib biriktirilgan (lub tolalari) yoki kristallashtirish kuchlari bilan qo‘shilgan (toshpaxta). Texnik tolalarni dastlabki ishlashda tolalar o‘simlik poyasi yoki barglaridan ajratiladi. Texnik tola ularning bog‘lanishlarini buzish orqali elementar tolalarga ajratilishi mumkin; 3-shtapel tola – elementar iplarni tutamchalarini kalta qirqimlarda (uzunligi40-150mm) kesilib yoki uzilib olinadi.