Clearing bath

In the Formula section of the Cookbook, only one bleach bath and one clearing bath formula is given, Bleach Bath DW-1 and Clearing Bath DW-2. Use both of these with any of the three developers given under Reversal Processing. 

Clear = 2 minutes with 30 seconds of agitation each minute. Do not exceed 2 minutes in the clearing bath or some silver halide may be dissolved resulting in a loss of density. 

Uses Hardening and acid fixing baths stop baths as a clearing bath after ferrous oxalate development of bromide paper. Glacial acetic acid can be used as a solvent of gelatin, celluloid, and pyroxylin. 

Uses Preservative in clearing baths, emulsions, etc. As a sequestering agent and as a stop bath. 

Uses Hardening solutions for fixing baths ingredient of the hypo-alum toning bath clearing bath. 

The dye can be cleared from the highlights by submerging in a clearing bath made of 60.0 ml of glacial acetic acid in 1.0 liter of water. An alternate method is to use 10.0 ml of household bleach to 1.0 liter of water. 

Caution Potassium bichromate is an allergen to some people and a suspected carcinogen. See precautions under potassium bichromate in Pharmacopoeia. If you are concerned about using bichromate use the permanganate bleach and metabisulfite clearing bath, below. 

Subsequent research was directed toward reuse of both the dyebath and the sodium hydrosulfite/sodium hydroxide reduction clearing bath utilized by the participating plant. Both... 

To further determine the effect of reusing the re-duction/clearing bath on the dyed yarn properties, lightfastness and crockfastness tests were performed on standard-dyed fabrics, dyebath reuse-dyed fabrics, and dyebath reuse plus reduction bath reuse-dyed fabrics. Lightfastness was performed according to AATCC Test Method 16A-1974, which called for forty hours of exposure to a carbon arc. Crockfastness was performed according to AATCC Test Method 8-1972. All fabrics exhibited the same fastness properties, indicating that the semiquantitative replenishment of the caustic/hydrosulfite bath did not affect the yarn quality. 

Chem. Descrip. PEG-8 laurate CAS 9004-81-3 EINECS/ELINCS 253-458-0 Uses Surfactant, emulsifier, dispersant for cosmetic lotions, hair conditioners, clear bath oils vise, modifier in PVC plastisols emulsifier, lubricant in textile spin finishes emulsifier, leveling agent, pigment dispersant, and wetting agent for coatings solubilizer for oils and soivs. Properties Straw clear liq. sol. in methanol, ethanol, acetone, ethyl acetate, toluol, veg. and min. oil misc. with water sp.gr. 1.03 HLB 14 solid, pt. < 7 C acid no. < 3 sapon. no. 90-100 pH 5 (5% aq.) nonionic 100% cone. 

Uses Surfactant, emulsifier, dispersant for cosmetic lotions, clear bath oils emulsifier and pigment grinding aid in coatings emulsifier, lubricant in textile spin finishes... 

Another method is to fix and dye the gel at the same time, using 0.2% Fast Green for 1-2 hr. Clearing can then be done electrolytically. However, it is preferable to clear by soaking in the clearing bath overnight. 

Uses Emollient, refatting agent for body washes, liq. soaps, bath oils emulsifier for SE oil formulations, e.g., clear bath oil cones. 

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