| 配方类型： |
TEXTILES |
| 配方说明： |
Permanent Flameproofing for Cotton*
*Southern Regional Research Laboratory. |
| 配方组成： |
Triethanolamine/338
A: Tetrakis (Hydroxymethyl) Phosphonium Chloride/1868
Dissolve the phosphonium chloride in the water and then add the
amine
B: Trimethylolmelamine ("Resloom" HP)/1069
Urea/1114
Water/5062
Water/1800 |
| 配制方法： |
Both solutions should be made at room temperature and heat should not be applied to the solutions before they are padded on fabric.
Solutions A and B are mixed and 100 yd. of 18 in. wide 8 oz. O.D. twill is padded, using two dips and two nips with a tight squeeze-roll setting. The wet pickup is about 71.5%. The fabric is dried 4.5 minutes by passing it through a forced-draft oven at 185'F. Then the fabric is cured 4.5 minutes by passing it through a forced-draft oven at 285'F.
and then is washed in a winch, first in cold water, then in hot water-containing 0.1% "Duponol" LS-(flakes)- and finally rinsed in water. It is dried by passing through the oven. The dried fabric is softened by padding with a 4% solution of a cationic softener such as "Triton" X-400, to a 50% pickup.
this example is illustrative only, since the amount of resin used and curing conditionns may have to be varied according to the type of fabric and degree of flame resistance required. It is suggested that mill trials are prec |
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