46 
BULLETIN" 882, U. S. DEPARTMENT OF AGRICULTURE. 
Inches 
•70 
.60 
' 
904 
70J5 
\ 
\ 
^ 
> 
•50 
.1*0 
\ 
\ 
>* 
*" 
Varnish B 
^ 
^ 
• 30 
.20 
A 
f 
^ 
s 
.10 
^ 
^ 

^ 
& 
X" 
?0^ 
S0J5 
•1.C0 
7C 
If. N 
<^ 
\ 
•90 
.SO 
\ 
s 
^ x \ 
\ 
Nv 
.70 
.60 
.50 
\ 
x 
\ 
N 
> 
V 
\ 
N 
s 
Varnish A 
\ 
>^ 
^ 
/; 
^ 
.20 
^^ Stress Tests 
^ on 
Doped, Varnished, Yarn Mercerized Cloth- 
.10 
1 
1 
10 20 30 40 50 60 70 
90 100 lbs, 
Fig. 23. — Elasticity curves showing the effect of load- 
ing different test samples of doped cloth by hand to 
different loads and allowing the cloth to be subjected 
to continual load by disengaging the weight pawl. 
Plain-weave cloth made of 3/80's mercerized yarn 
spun from American Egyptian cotton of grade No. 1 
(fancy), 11 inches in length of staple. 
Twist per inch of single yarn, 35.6. 
Twist per inch of ply yarn, 20.6. 
Construction of cloth, 68 ends by 68 picks. 
Strength of caustic, 64 degrees Twaddle. 
Percentage of dope, 60. 
