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Table  6-4.—Spot  and  Stain  Removal  Chart—Continued - 14239_165
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Appendix 1 Glossary - 14239_167
5.  If  you  are  spotting  rayon  articles,  never treat  them  with  organic  solvents  unless  resistance to the treatment is known by a preliminary test on  an  unexposed  portion  of  the  garment. 6. When using chemical agents always allow ample time for the agent to start to act on a spot before  trying  to  remove  it. 7.  When  you  use  the  spatula  to  help  the cleaning  formula  to  penetrate  the  spot,  be  careful. Rub  the  spatula  back  and  forth  across  the  spot using short smooth strokes without applying too much pressure. This will prevent damage to the fabric. 8. Always use the proper spotting brush as we  discussed  earlier.  The  spotting  brush  should be  used  in  the  same  manner  as  the  spatula  to prevent  damage  to  the  fabric. 9. Avoid excessive friction when treating silk or  rayon  fabrics.  Where  some  friction  is  necessary, it is recommended you use the wrong side of the garment. 10. Do not use the spatula on silk or synthetic fabrics. The pressure you can apply on it without causing damage to the fabric will be insufficient to  do  any  good. 11. When you remove spots and stains from delicate  fabrics,  you  should  place  the  stained portion of the garment over a pad of clean cloth or a white blotter and apply the cleaning solution with  a  squeeze  bottle,  a  medicine  dropper,  or  a cleaning  sponge  may  also  be  used.  Allow  sufficient time  for  the  cleaning  solution  to  penetrate,  but remove it as soon as possible to prevent damage. 12. All chemical agents used in spotting must be  rinsed  from  the  fabric  thoroughly  before  you dry  or  press  the  fabric. SPOTTING  FORMULAS Spotting agents are normally available in the Ship’s Store Contract Bulletin.  Ample supplies of spotting  agents  should  be  obtained  before  your ship  deploys  overseas  or  leaves  port  for  an extended  period  of  time.  The  spotting  formulas listed in table 6-5 are the ones generally used for removing   spots   and   stains   for   the   purpose indicated.  They  are  included  in  this  chapter  for your   information   and   should   be   used   when satisfactory  commercial  products  are  not available.  All  ingredients  of  these  formulas  are generally  available  aboard  ship. Table  6-5.—Spotting  Formulas Formula Chemical    Composition When  Used General Amyl acetate . . . . . . . . . . . 1   part Used  with  water  to  remove  ink,  tannin, Formula . . . . . . . . Glacial  acetic berry, lipstick, and dyestuff stains, or acid 99% . . . . . . . . . . . . . ½  part stains that contain dyestuff. Safe on Lactic acid . . . . . . . . . . . . . 1    part all fabrics when cold, but not on all Oxalic  acid  crystals dyestuffs. (by  weight)  .  .  .  .  .  .  .  .  .  .  .  ½  part Synthetic methanol . . . . . . . . . . . . . 1    part Paint Chloropicrin . . . . . . . . . . . . Good  for  removing  all  kinds  of  paint remover . . . . . . . . (Use  as  prescribed  by and similar substances. the  manufacturer) Evaporates  completely. Prespotting Ammonia (26%) . . . . . . . . ½  part Used  on  paint,  oil,  tar,  road  oil,  and soap . . . . . . . . . . . Hexalin . . . . . . . . . . . . . . . . 2  parts asphalt to prevent SETTING during Oleic acid . . . . . . . . . . . . . . 3  parts the dry-cleaning process. Blood and Water (distilled). . . . . . . . .   1½ parts tannin stains should be removed by (Can  use  plain  water.) water  before  you  dry  clean. Wet spotters . . . . . .    Acetone . . . . . . . . . . . . . . . . 1    part Wet  and  dry  solvents  are  used  to Castile soap . . . . . . . . . . . .      6 parts remove soil, paint oils, and greases. Chloroform . . . . . . . . . . . . 1    part For very severe stains, or large areas, Ethyl acetate . . . . . . . . . . .      1 part DO  NOT  USE  wet  spotters. Synthetic methanol . . . . . . . . . . . . . 1    part Water . . . . . . . . . . . . . . . . . . 1   part 6-30

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