METHOD FOR PRODUCTION OF DECORATIVE ITEMS FROM WASTES OF PINE TREES Russian patent published in 2016 - IPC B44C1/24 

FIELD: wood working industry; personal care and household items.

SUBSTANCE: invention relates to production of decorative moulded articles, particularly for finishing internal surfaces of a room, for making souvenir products, art panels. Method of making decorative articles from cedarwood wastes by compaction of initial raw material in a mould while heating with holding under pressure, further cooling and polishing of surface of obtained article, wherein preparation of raw material is carried out by selecting decor elements from cedar field wastes with sorting according to their types and crushing wastes after sampling decor elements to a slaked lime state; filling components of prepared raw material for pressing is carried out in mould heated to 120-150 °C in following sequence: lower layer - 33-43 % husks, second layer - 41-51 % slaked lime, upper layer - 9-19 % decor elements, wherein decor elements are placed randomly or in a predetermined pattern; pressing components of raw materials under pressure is performed in three steps: first step - under pressure of 50-80 kg/cm² for 60-90 s with subsequent steam release, second step - under pressure of 140-160 kg/cm² for 60-90 s with subsequent steam release, third step - under pressure of 200-220 kg/cm² for 60-90 s; cooling of extracted article is performed under pressure at temperature 5-10 °C for 5-8 minutes with subsequent holding for 20-22 hours at room temperature.

EFFECT: high strength, moisture resistance and durability of decorative articles made of cedar field wastes.

1 cl, 6 dwg