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    配方类型: INKS AND CARBON PAPER
    配方说明: Stencil Duplicating Inks
    配方组成: Stencil duplicating inks make impressions through cut stencils
    superimposed upon a porous blanket, by means of a slow flow of the
    stencil ink. Originally, these inks were entirely nonaqueous in
    composition. Water inks are now available, but since they have certain
    serious limitations, discussion will be limited to the oil-based types.
    Several commercial formulations are as follows
    Ultramarine/-
    "AA" Castor Oil/-
    Gloss White/7.2
    Purple Toner 6025/-
    Peerless Carbon Black/-
    Brown 2605/-
    Chrome Yellow 1085/14.2
    Zinc Yellow 1425/7.2
    Watchung Red/-
    Green 2133/-
    London Rosin Oil/-
    Color of Ink/Yellow
    Molacco Black/-
    *Vehicle: "AA" Castor Oil/39.1
    London Rosin Oil/60.9
    Prepare vehicle by charging proper amounts into vessel and stirring till
    Vehicle*/71.4
    uniform with slow agitation. The inks are prepared by mixing the vehicle
    and pigments in a ball mill and cold grinding for 4-6 hours.
    Milori

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