B. Flame-Resistant Wool and Wool-Blend Upholstery Fabrics
(1) Sort fabrics by stain characteristics and pretreat stains as described in Table 4003.
Table 4003
Stain and Pretreatment Methods
TYPE EXAMPLES PRETREATMENT METHOD
Water soluble Tea, coffee, red wine, fruit, urine a. Moisten the stain with water. b. Work the spotting reagent into the stain with a spatula or tamping brush. c. Blow steam through the spot. d. Follow steam with forced air and simultaneous vacuuming.
Protein-type water soluble Milk, chocolate, blood a. Moisten the stain with water. b. Work the spotting reagent into the stain with a spatula or tamping brush. c. Blow steam through the spot. d. Follow steam with forced air and simultaneous vacuuming.
Water insoluble Ink, lipstick, nail polish, shoe polish a. Work the spotting reagent into the stain (dry fabric) with a spatula or tamping brush. b. Dry clean the fabric before the reagent dries.
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B/E AEROSPACE
COMPONENT MAINTENANCE MANUAL
MILLENNIUM. 88813 SERIES
Table 4003 (Continued)
Stain and Pretreatment Methods
Unknown stains CAUTION: USING AN ANIONIC OR ALKALINE REAGENT CAN IMPAIR THE FLAME-RETARDANT CHARACTERISTICS OF THE FABRIC AND ADVERSELY AFFECT CERTIFICATION.
a. Use a commercial, nonionic stain removal kit that includes procedures for removing unknown stains.
b. Test the cleaner on a small area for colorfastness before proceeding.
(2)
Laundry machines:
(a)
Use a dry cleaning machine with a load capacity of 20-65 pounds. Machines with larger loading capacities tend to accelerate fabric abrasion.
(b)
Load machines to about 70% of rated capacity. Loading machines higher than 70% may impair cleaning efficiency and accelerate fabric abrasion. Underloading may result in impairment of flame-retardant properties because of detergent absorption or excessive shrinkage.
(c)
Use a nonionic dry cleaning detergent.
(d)
Although the dry cleaning process is designed to be waterless, Lantal Textiles, a manufacturer, states that the addition of some water is necessary to reduce the long-term buildup of perspiration salts and sebum, which will cause a reduction in flame retardancy.
(e)
The temperature of the dry cleaning solvent should be 65°-70° F. Maintain this temperature throughout the dry cleaning process. Higher temperatures can cause undue shrinkage.
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