|
| |
SENSITIVE
TO |
RESISTANT
TO |
| COTTON |
Sulphuric acid,
cupramonium liquor at 80%. |
Alkalis and solvents,
weak acids. |
| WOOL |
Sulphuric and
concentrated hydrochloric acids, alkalis. |
Dilute acids, organic
solvents, oxydizing agents. |
| CELLULOSIC |
Acids, strong
alkalis, cumpramonium liquor, some oxydizing agents. |
Organic solvents,
acetone, formic acid. |
| ACRYLIC |
Hot alkalis,
dymethylformamide, cold nitric acid. |
Acids oxidizing
agents common solvents |
| POLYAMIDE |
Concentrated acids,
phenol, hot dymethylformamide. |
Organic solvents
bleaching agents. |
| POLYESTER |
Concentrated nitric
acid, nitro benzene, phenols. |
Dyozydizing.. |
| POLYETHYLENE |
Hot chloritaned
hydrocarbur. |
Bases, acids and
solvents. |
| POLYPROPYLENE |
Chloritaned
solvents at high temperature, aromatic compounds. |
Strong acids
and alkalis, common solvents. |
| TABLE
OF FIBRE IDENTIFICATION |
| POLYPROPYLENE* |
Dissolves in Xilene
at boiling point. |
| NYLON 6.6 |
Dissolves in Formic
Acid at 85%, in cold. |
| POLYESTER |
Dissolves in
Sulphuric Acid concentrated, in cold. |
| ACRYLICS |
Dissolves in Nitric
Acid concentrated, in cold. |
| RAYON ACETATE |
Dissolves in Acetone,
in cold. |
| WOOL |
Dissolves in Caustic
soda at 10%, boiling 15 min. |
| COTTON |
Dissolves in
Sulphuric Acid concentrated, in cold. |
| RAYON VISCOSE |
Dissolves in
Sulphuric Acid concentrated, in cold. |
| NATURAL SILK |
Dissolves in Caustic
soda at 10%, boiling point 15 min. |
| NYLON 11 |
Dissolves in
Sulphuric Acid at boiling point. |
* The easiest procedure to identify PP is
that floats on water.
EQUIVALENCES TABLE
| DEN. |
DTEX. |
COTTON |
WOOL |
LINE |
NM |
M/KG |
YARDS/POUND |
| 100 150
200
210
300
350
400
420
450
500
600
700
800
840
900
1.000
1.200
2.000
2.400
3.000
3.600
4.000
5.000 |
111 166
222
233
333
389
444
466
500
555
666
777
888
932
999
1.111
1.332
2.220
2.664
3.330
3.996
4.440
5.550 |
53,1 35,4
26,5
25,3
17,7
15,2
13,3
12,7
11,8
10,6
8,9
7,6
6,6
6,3
5,9
5,3
4,4
2,7
2,2
1,8
1,5
1,3
1 |
79,7 53,1
39,9
38
26,6
22,8
20
19
17,7
16
13,2
11,4
10
9,5
8,8
8
6,6
4
3,3
2,7
2,2
2
1,6 |
148,9 100
74,4
71
50
42,5
37,2
35,4
33
29,8
24,8
21,2
18,6
17,7
16,5
14,9
12,4
7,4
6,2
5
4,1
3,7
3 |
90 60
45
42,8
3
25,7
22,5
21,4
20
18
15
12,8
11,2
10,7
10
9
7,5
4,5
3,75
3
2,5
2,25
1,8 |
90.000 60.000
45.000
42.850
30.000
25.700
22.500
21.400
20.000
18.000
15.000
12.850
11.250
10.710
10.000
9.000
7.500
4.500
3.750
3.000
2.500
2.250
1.800 |
44.550 29.700
22.275
21.210
14.850
12.720
11.140
10.600
9.900
8.910
7.420
6.360
5.570
5.300
4.950
4.450
3.710
2.230
1.860
1.480
1.240
1.110
890 |
|
