﻿UNITED STATES DEPARTMENT OF AGRICULTURE 



ffjlf BULLETIN No. 1135 wm& 



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Washington, D. C. 



PROFESSIONAL PAPER 



May 19, 1923 



SPINNING TESTS OF COTTON COMPRESSED TO 

 DIFFERENT DENSITIES. 



By William R. Meadows, Cotton Technologist, and William G. Blair, Specialist in 

 Cotton Testing, Bureau of Agricultural Economics. 



CONTENTS. 



Purpose of tests 1 



Kinds of bales 2 



Conditions of the tests 3 



Varieties of cotton tested 3 



Waste determinations 4 



Mechanical conditions 4 



Moisture conditions 4 



Breaking strength and sizing of yarns ... 4 



Irregularity of yarns 5 



Spinning tests of Cleveland Big Boll cotton of 



flf teen-sixteenths-inch staple 5 



Percentage of waste 5 



Moisture conditions 6 



Breaking strength of yarns 7 



Irregularity of yarns 7 



Manufacturing properties 8 



Summary of tests 8 



Spinning tests of Rowden cotton of 1-inch 



staple 8 



Percentage of waste 8 



Moisture conditions 9 



Breaking strength of yarns 10 



Spinning tests of Rowden cotton of 1-inch 

 staple — Continued . 



Irregularity of yarns 11 



Manufacturing properties 12 



Summary of tests : 12 



Spinning tests of Delta cotton of l£-inch 



staple 12 



Percentage of waste 12 



Moisture conditions 13 



.Breaking strength of yarns 13 



Irregularity of yarns 14 



Manufacturing properties 15 



Summary of tests 15 



Spinning tests of Webber 49 cotton of lj-inch 



staple 15 



Percentage of waste 15 



Moisture conditions 16 



Breaking strength of yarns 17 



Irregularity of yarns 17 



Manufacturing properties 18 



Summary of tests 18 



Conclusions 18 



TN TIMES of prosperity, when transportation and storage facilities 

 ■*■ are taxed to the limit, the conservation and utilization of space 

 in freight cars and terminal warehouses becomes of paramount 

 importance. A considerable saving in space and freight charges 

 would be possible if a more compact and neater package were 

 adopted for cotton. 



PURPOSE OF TESTS. 



Does compressing cotton to higher densities than 15 pounds per 

 cubic foot injure the spinning value of the cotton ? This is a much 

 discussed question among cotton growers, merchants, brokers, and 

 manufacturers. The spinning tests herein described were conducted 

 for the purpose of arriving at conclusions in regard to this question 

 as definite as could be determined by tests covering a single season's 

 growth. 1 



1 These spinning tests were conducted under the general supervision of William R. Meadows, cotton 

 technologist, and under the direction of William G. Blair, specialist in cotton testing, who was assisted by 

 H. B Richardson, C. E. Folk, and E. S. Cummings, assistants in cotton testing. The Cleveland Big 

 Boll was spun at the North Carolina State College of Agriculture and Engineering, Raleigh, N. C, and 

 the other cottons were spun at the Clemson Agricultural College, Clemson College, S. C, 



23243°— 23— Bull. U35- 



