274 



Popular Science Monthly 



The paper strip is corrugated in 

 uniform lines and is then grasped 

 firmly and twisted into a string 



CUTTING 

 KNIVES 



INTO STRIPS 



Cutting the web into long narrow strips 

 after it has been compressed into 

 duplex form, preparatory to twisting 



ROLLED PAPER 

 IN FORM OF DISK 



the elongated helix so formed is further 

 hand-twisted into a very thin tube. This 

 tube is then further collapsed and twisted 

 until a strong tightly-wound string is ob- 

 tained. 



For making the thread that is 

 used in clothing, another prelimi- 

 nary process must be used. In this, ' 

 a wide sheet of moistened 

 wood pulp is fed into a 

 compression-roller under 

 another sheet of either 

 cotton or woolen fleece of 

 the same width. Both 

 sheets are quite soft, so 

 that after they have been 

 forced through the heavy 

 rollers, they will come out 

 with their fibers interen- 

 gaged and in the form of 

 one solid web. The duplex 

 web so formed is then 

 placed in a cutting ma- 

 chine and divided into long 

 narrow strips. These may 

 then be hand-twnsted and 

 spun in a manner similar 

 to that used in making the 

 finer t\vines described above. 



The finished thread is then woven into 

 cloth in any of the ways in which ordinary 

 thread is woven. But because of its 



COLLAPSED 

 AND TWISTED 



different nature, the cloth that is made 

 from spun paper may be beneficently 

 treated in ways which can not be used 

 with the ordinary cotton or woolen cloths. 

 Thus, the first treatment consists in im- 



1 mersing the paper-spun 



cloth in great vats contain- 

 ing solutions of emulsions 

 of fat. The cloth will grad- 

 ually absorb the grease 

 until it has become well 

 saturated with it. The re- 

 sult is that the cloth is 

 made water-proof and its 

 former stiffness is removed. 

 The cloth is then still 

 further improved by treat- 

 ing it in antiseptic solu- 

 tions. These will make the 

 cloth both air-tight and 

 sanitary. Being now 

 both 'moisture and air- 

 proof, the cloth is ex- 

 ceedingly warm since the 

 radiation of the heat 

 from the body is pre- 

 vented by this treatment 

 to a very large extent. 

 By processes which 

 are based upon the ones that 



Method of strengthening paper twine 

 having a fibrous core. The paper rib- 

 bon is first curled around the core 



SECTION OF TWISTEC 

 THREAD 



ELING SCREEN 



COMPLETED THREAD 



Rolling the pulp to compress it into a 

 duplex web, which is the first stage in 

 the preparation of the paper strips 



This thread has a surrounding covering 

 of fleece securely united to the paper por- 

 tion. It is twisted into a felt-like fabric 



