TABLE OF CONTENTS INTRODUCTION .............................................................. 3
Chapter I Information on the quality of products 11.
...................................................................................
Quality
indicators of products .............................................................. 5
1.2.
Physical and mechanical properties of raw cotton.... 8
1.3.
Physical and mechanical properties of cotton fiber... 11
1.4.
General information about natural fibers .......................... 12
Chapter II Evaluation of the quality of cotton products 2.1.
Methods for assessing product quality ............................. 18
Chapter Determination of qualitative indicators of raw П1 cotton 3.1.
Department of technical control of cotton ginning plant 21
3.2.
Laboratory instruments of cotton ginning plant and
procurement station .................................................. 22
3.3.
Technical equipping of cotton ginning plant laboratories
and procurement station ........................................... 25
3.4.
Sampling for the determination and evaluation of the
quality of raw cotton ................................................ 30
3.5.
Types of raw cotton ........................................................... 32
3.6.
Determination of the moisture content of raw cotton 35
3.7.
Determination of the clogging of raw cotton ................... 50
3.8.
Determination of raw cotton grade ................................... 59
Chapter Determination of qualitative characteristics of IV fiber 4.1.
Cotton fiber. Technical specifications .............................. 73
4.2.
Sampling of cotton fiber ................................................... 85
4.3.
Determination of the load and linear density of the fiber
88
4.4.
Determination of the degree of maturity of the 89 fiber
4.5.
Determination of the linear density and the porosity meter
of the cotton fiber micronaire ................................... 96
4.6.
Determining the nature of defects and the contamination of
cotton fiber .............................................................. 100
214
4.7.
Determination of the length of cotton fiber ....................... 106
4.8.
Determination of cotton fiber moisture ............................. 112
