发明名称 |
METHOD FOR DETERMINING MATURITY EXTENT OF COTTON FILAMENTS |
摘要 |
FIELD: textile industry. SUBSTANCE: method involves providing analysis of interference pattern during passage of polarized light through filaments disposed between covering glasses; placing filaments in nematogenic mesophase; heating filaments with nematic and determining width of nematic zone with disturbed homeotropic orientation in surface region of filaments before phase transition of nematic to isotropic state; measuring transition temperature to judge the extent of maturity of filaments. Double refection factor of nematic is within the range of 0.2-0.3. EFFECT: increased efficiency in primary processing of cotton filaments and provision for obtaining objective data on extent of maturity of cotton filaments. 2 cl, 8 dwg, 1 tbl
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申请公布号 |
RU2202786(C1) |
申请公布日期 |
2003.04.20 |
申请号 |
RU20010125692 |
申请日期 |
2001.09.19 |
申请人 |
IVANOVSKAJA GOSUDARSTVENNAJA TEKSTIL'NAJA AKADEMIJA |
发明人 |
SEMIKIN A.P.;IZGORODIN A.K.;USOL'TSEVA N.V.;ZHERDEV V.P. |
分类号 |
G01N33/36;(IPC1-7):G01N33/36 |
主分类号 |
G01N33/36 |
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