| abstract |
Disclosing the window frame profile being provided with epidermal area, co-extrusion resin composition is squeezed in a surface of the section bar squeezed out from main extruder by double rank, and wherein, co-extrusion resin composition comprises lumber fibre.Co-extrusion resin composition includes the first raw material for forming primary colours, for forming the second raw material of semi-tone color and for forming the 3rd raw material of high tonal color.According to the above-mentioned present invention, epidermal area is formed by the coextrusion side with section bar, and therefore, it is possible to provides the natural grain of wood and therefore provide luxurious style.And, in window frame profile, on the epidermal area of window frame profile, naturally can show shades of colour mutually to distinguish, embossed pattern is formed as two rank, the repetition period elongated grade of pattern and therefore, it is possible to provide the pattern being similar to nature timber. |