FIELD: dyeing processes. SUBSTANCE: when dyeing polyvinylbutyral film used as sun-visor, frames with film fixed on holders are immersed into preliminarily prepared bath with dyeing solution consisting of ethylene glycol, water, and direct disperse dye. Process is carried out for 40 min at solution temperature 45-55 C. Dyeing process is performed in approximately 20 cycles with periodicity of continuous cycles consisting in descending and ascending framed film to achieve required coloration saturation and permitting immersion of frame with different levels of dyeing solution. EFFECT: enabled coloration of items into various colors with smooth bright-into-dark passage. 4 cl, 1 dwg
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