Patent ID: 8231757

Claim:
A method of manufacturing laminated bamboo sliver lumber, comprising steps of: a) preparing bamboo slivers, including: providing a bamboo which is more than about 4 years of age and has an outer diameter of about 23-50 cm (9.06-19.69 in), cutting the bamboo at about 0.5 m (1.64 ft) from a root of the bamboo so as to obtain a bamboo stem of a certain length, cutting the bamboo stem along a radial direction thereof into bamboo tubes each having a length of about 0.3-2.6 m (0.98-8.53 ft), splitting each bamboo tube along an axial direction thereof into bamboo strips each having a width of about 8-25 mm (0.31-0.98 in), sectioning each bamboo strip into a bamboo inner skin sliver and a bamboo outer sliver including bamboo outer skin and having an air dry density no less than about 0.95 g/cm 3 (59.31 lb/ft 3 ), and selecting and using the bamboo outer slivers and removing siliceous and wax layers on an outer surface of each bamboo outer sliver so as to obtain bamboo slivers each having a thickness of about 1-4 mm (0.04-0.16 in); b) performing mothproofing, mildew proofing and antiseptic treatments to the bamboo slivers, then drying the bamboo slivers to a moisture content of about 6-15%; c) machining each dried bamboo sliver to a thickness of about 0.5-3.5 mm (0.02-0.14 in) and a width of about 5-22 mm (0.20-0.87 in), then dehumidifying the machined bamboo slivers to a moisture content of about 3-10%; d) applying a glue to the bamboo slivers by glue coating or immerging process, in which a ratio of the glue to an absolute dry weight of the bamboo slivers is about 3-16%; and e) arranging the glued bamboo slivers with their width direction consistent with the vertical direction, then pressing the arranged bamboo slivers and curing the glue under a side pressure of about 3-15 MPa (0.44-2.18 ksi) and a top pressure of about 1-6 MPa (0.15-0.87 ksi) so as to form the laminated bamboo sliver lumber.