All Uninked Jumbo Roll are made of Japan Nylon 6.6 base cloth with tension over 20kg / in2. Rolls of various level of density are provided.
Ribbon Nylon Specification
All Nylon are woven in Japan 
Model NO. 40J   40M       40K                 
used for POS/Cash Register/24-pin printer(with chinese character) 24-pin printer(with chinese character)  24-pin printer(with chinese character), especial for Japanese OEM ribbon
       
Density Semi-High High High
       
Twisted Non-Twisted Non-Twisted Twisted
       
Warp (Count per inch): 206 ± 5 210 ±  4 210 ±  4
       
Weft (Count per inch): 116 ± 5 126 ± 4 126 ± 4
       
Yarn Warp 40D-34F 40D-34F 40D-34F
       
Yarn Weft 40D-34F 40D-34F 40D-34F
       
Weight (gram per meter²) 60 ± 3 66 ± 3 66 ± 3
             
Thickness (microns) 127 ± 8 126 ± 7 126 ± 7
(measured by peacock)      
PH 5.0 - 7.5 5.0 - 7.5 5.0 - 7.5
       
Tensile strength (kg) over 20 over 20 over 20
(kg per 1 inch) Warp(min.)      
Tensile strength (kg) over 12 over 12 over 12
(kg per 1 inch) Weft(min.)      
Material  Japanese Nylon 6.6 Japanese Nylon 6.6 Japanese Nylon 6.6

 

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