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| Resistance
to Oils and Organic Solvents |
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The water-soluble PVA film has the good
characteristic to resist the oils and fats such as animal oils,
vegetable oils, mineral oils, fats, organic solvents and the
hydrocarbons to penetrate. However, it can be affected by strong
acid, strong base, chlorine free radical and some special chemical
which can react with PVA such as borax, boracic acid and coloring
matter and so on, so it isn't fit for packing the above things.
Applications that
utilize resistance to oils and organic solvents:
Paper coating, paper making, corrugated board paper, heat sensitive
paper, packaging films, adhesives and photosensitive resins
(letterpresses) |
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