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US 4,009,995 AGranted
Process for dyeing molded articles containing urea formaldehyde resin or melamine formaldehyde resin
OwnerHans Dresslerinventor
Life of this patent
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Abstract
Molded synthetic plastic articles containing urea formaldehyde or melamine formaldehyde are dyed after molding. The molded synthetic plastic article is treated in an aqueous dye bath containing 0.005 to 5.0 wt. % of a dichlorotriazinyl dye or a premetalized dye at a temperature in the range of 50.degree. to 100.degree. C.
Claims13
A process for dyeing molded articles containing urea formaldehyde resin or melamine formaldehyde resin comprising:
- a. treating the molded articles in an aqueous dye bath containing one or more dyes selected from the group consisting of dichlorotriazinyl dyes or premetallized dyes at a temperature in the range of 50.degree. to 100.degree. C.
Dependencies are inferred from the claim text.