Treating method of preventing putrefaction and emission of rancidity of water-contained cutting or grinding oil and treating bag member for use in the same
AssigneeKinki Pipe Giken Kabushiki Kaisha
InventorToyohiko Kuno
Life of this patent
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Abstract
A treating method of preventing the putrefaction and emission of rancidity of water-contained cutting or grinding oil by placing in the oil a treating bag member wherein solids comprised of water-soluble glass composition containing Ag.sup.30 ion in the composition thereof are wrapped in water-permeable fiber cloth. The method makes it possible to suppress the development of microbes forming which cause the putrefaction and rancidity of oil by the action of Ag.sup.30 ion so as to prolong the service period of the oil by a substantial degree and also to stabilize the effect by making Ag.sup.30 ion flow out in generally constant relation with lapse of time.
Claims10
A treating method comprising:
- preventing putrefaction and emission of rancidity of water-contained cutting or grinding oil used, by wrapping a solid comprised of any one or a mixture of lumps, granules and powders of water-soluble glass composition containing monovalent Ag in the composition thereof in water-permeable fiber cloth and steeping said solid in cutting or grinding oil diluted with water to dissolve the glass inside the wrapping fiber cloth in the water through a gelled state of the glass to make Ag.sup.+ ion flow out into the water and hold the Ag.sup.+ ion in the gelled glass while preventing the suspended substances and suspended solids in the oil from infiltrating through the texture of the water-permeable fiber cloth, and thereafter causing the Ag.sup.+ ion to flow out gradually through the texture of the fiber cloth into the rest of water outside the wrapping cloth.
Dependencies are inferred from the claim text.