Method of bleaching wood

Details Method of bleaching wood Method of bleaching wood

1991-04-22

1993-09-07

Willis, Jr., Prince

Bleaching and dyeing; fluid treatment and chemical modification

Wood dyeing process

8111, D06P 360

Patent

active

052424642

ABSTRACT:
This invention relates to a method for a single application of wood bleach that improves the degree of whiteness, uniformity and depth of bleaching in the wood. The method includes the application of sufficient quantities of wood bleach to maintain an excess of liquid on the surface of wood for an extended time such as a minimum of 10 minutes to obtain penetration to a greater depth. Periodic motion of an abrasive powder, or an abrasive pad to continually relocate the excess bleach on the wood surface, either by machine or by hand, provides even distribution and eliminates the raised grain on the bleached wood. Another aspect to the invention is a single step process of bleaching and dyeing in which the dye is mixed in the bleach solution.

REFERENCES:
patent: 1068580 (1913-07-01), Frank-Philipson
patent: 1251614 (1918-01-01), Anders
patent: 2096400 (1937-10-01), Kritchevsky
patent: 2312218 (1943-02-01), MacBean
patent: 2397193 (1946-03-01), Miller
patent: 2733119 (1956-01-01), Nack
patent: 2867493 (1959-01-01), Nack
patent: 5034096 (1991-07-01), Hammer et al.
Kirk-Othmer Encyclopedia of Chemical Technology, 3rd ed., vol. 13, p. 14, (1981).

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