USTKI ASSORTIMENT BUYUMLARNI TAYYORLASHDA TIKUVCHILIK IPLARINI SIFATINI BAHOLASH USULLARINI TADQIQ QILISH
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Аннотация:
Tikuvchilik iplarining sifati assortiment buyumlarning mustahkamligi, estetik ko‘rinishi va funksionalligida muhim rol o‘ynaydi. Ushbu tadqiqot tikuvchilik iplarining sifatini baholashning turli usullarini, xususan, fizik, mexanik va ishlash ko‘rsatkichlariga asoslangan testlarni o‘rganadi. ASTM D204 va ISO standartlariga muvofiq, polyester, paxta va neylon iplardan iborat namunalar nazorat sharoitlarida sinovdan o‘tkazildi. Asosiy baholash parametrlariga tortishish kuchi, uzilishdagi cho‘zilish, ishqalanishga chidamlilik, tikuv mustahkamligi va qisqarish kiradi. 50 ta ip namunasi bo‘yicha olib borilgan laboratoriya tajribalari natijasida polyester iplar o‘rtacha 45 N tortishish kuchi bilan paxta iplariga (32 N) nisbatan ustunlik ko‘rsatdi, bu yuqori stressli kiyimlarda tikuv mustahkamligiga ta’sir qiladi. Muhokamada ushbu usullar tikuvchilik iplarini tanlashni optimallashtirish, nuqsonlarni kamaytirish va mahsulot umrini uzaytirishda qanday yordam berishi ko‘rib chiqiladi. Tadqiqot to‘qimachilik sanoatida sifatni baholashning standartlashtirilgan usullariga bo‘lgan ehtiyojni ta’kidlaydi.
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