Research On Non-woven Decorative Veneer Manufacturing Process

Valuable timber are usually made of decorativeveneer in order to improve the utilizationand product addition.The study takes the four kinds of veneers, different proportions of UFwith PVAc, modified PVAc as adhesives,and three kinds of non-woven were selected to makenon-woven decorative veneer,and takes the pliable,transverse tensile strength,peel strength asthe research index.When mixed with different proportions of UF and PVAc adhesive wasprepared as red oak non-woven decorative veneer,research adhesive ratio, glue spreadingamount,press temperature, press time impact of red oak veneer decorative pliable andtransverse tensile strength,and optimization of process parameters.When modified PVAcadhesive was prepared as non-woven decorative veneer，optimize the composite technology ofthe non-woven decorative venee. At last,thick non-woven,three species veneer, modified PVAc,were selected to makenon-woven decorative veneer, research pressing pressure, pressingtemperature, pressing time, glue spreading amount affect its peel strength.1) When mixed with different proportions of UF and PVAc adhesive was prepared as redoak non-woven decorative veneer：①Adhesive greater than40g/m2, prone to the phenomenonof transparent adhesive, the greater the amount of adhesive transparent adhesive, the moreobvious.②The most significant factor affecting its pliable as adhesive ratio, followed by theamount of glue, hot temperature and pressing time impact is smaller, and the greater proportionof UF the pliable worse.③The most significant factor affecting its transverse tensile strength isthe amount of adhesive, followed by adhesive ratio, pressing temperature and pressing timeimpact is smaller, and with the amount of glue and proportion of UF increase itstransversetensile strength increases.2)When modified PVAc adhesive was prepared as non-woven decorative veneer:①Forblack walnut, red oak, white birch and mono maple, the main factors affecting the pliable asglue spreading amount. Pressing pressure and pressing time effect on the pliable offournon-woven decorative veneers are small.②The pliable of four non-woven decorative veneers from good to poor were white birch, black walnut, red oak, mono maple.③The pliable of twodifferent densities non-woven decorative veneers no differences.④The thickness of the veneerto non-woven decorative veneer pliable affected significantly, thicker veneer its pliable worse.⑤The process parameters have a significant impact on transverse tensile strength, affect themost significant factor is the glue spreading amount, followed by hot temperature, pressureand hot pressing time impact is relatively small.⑥The transverse tensile strength of non-wovendecorative veneers about5-8times to veneer.⑦Generally, the transverse tensile strength ofveneer greater, and the transverse tensile strength of non-woven decorative veneers becomes.⑧High density nonwoven and veneer made of non-woven decorative veneer its transverse tensilestrengthalso large.3) The process parameters on the peel strength of non-woven decorative veneer. hassignificant influence.Veneer species has a significant impact on the peeling strength，peelstrength test results in descending order of black walnut, red oak,white birch.