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TOP / Master Craftsman's Expertise(Chair Making Step-by-Step)


Chair Making Step-by-Step
  IYOBE's furniture making process is almost fully done by hand, combining traditional techniques with the most up to date technology.
Through the chair-making process, we are able to witness IYOBE's commitment.


Sorting lumber    
The lumber comes from suppliers around the world. It is carefully selected for hardness, size, color, and wood grain.  


Processing lumber    
Once selected, the lumber is processed. The appropriate processing machine is chosen so as to increase efficiency.  
             
  The copping machine creates gentle curves. The wood is placed in the middle, and the machine processes 4 legs simultaneously.     Creating the curved legs-after the lumber is roughly cut into shape, a copping saw is used to grind it down, then it is given to a craftsman who hand curves it with a plane.




Cutting the fabric    
Fabric is used for the seat and back of a chair. The cloth is cut according to the chair's design. When cow hide is used, visual inspection is done to check for imperfections. This part of the process is also accomplished by hand.  
             
  This leather is processed from a whole steer. To make a single chair seat, a minimum of 1.5 steers are used.     Leather after patterning. While checking for damages, a craftsman cuts down the leather.




Sawing    
Sewing up the fabric material. Leather, fabric, or synthetic leather, each of them stretches differently, and this process is carried out manually.  
             
  The sewing machine is used for quality processing. A urethane material is sewn onto an upholstery material. Stitch type and size are selected and quilted upholstery material with good design and comfort level is created.     Even when the same pattern is used on the same upholstery material, variations may occur in the side margins upon sewing. A craftsman's skill is called into play when this occurs.




Upholstery    
Attaching the upholstery to the wood frame. The method of attaching the seat, back, and armrest material to the wood frame varies from chair to chair.  
             
     
             
Woven tapes are crisscrossed on the seat. To create flexibility and prevent the wood frame from touching the body, a cushioning material is placed on the wood frame.   The leather is pulled, smoothed, and fastened with a tucker. This process may seem simple, but it requires expert skill to match the stretch pattern evenly.   Where adhesives are called for, glue is used. The curved sections are accomplished by scissoring small slits into the fabric. This skill often is used on the armrests.  

The joints are painted so as to blend them. When the paint is dry, it is flattened with a hammer to smooth it into a solid line.





Assembly & Final Adjustment    
Assembling the chair parts. They are put together so as to match the patterns and stitch work. Our craftsman put in a superior effort to create a fine quality product in each step of the process, from the lumber processing on. The upholstery process alone takes 2 days.  
             
  Each craft is visually inspected, carefully making sure it is up to standards of quality and comfort.    




Inspection    
IYOBE's chair making does not end at simply constructing the product. To ensure our customers' comfort and satisfaction, we carry out many inspections. Once the chair has passed inspections, it is ready to go to the clients' home.  
             
  Measuring equipment ascertains the impact when a 180lb (80kg) person sits in the chair. A fixture shaped like a heavy human hip simulates the action.     This equipment measures VOC level. Keeping a safe environment in mind, IYOBE uses F**** level adhesive and finish materials that are not harmful to humans.




Delivery    
After the final inspection is completed, the furniture created by IYOBE's craftsman is delivered to your door.  

 

 
Upholstery Technique
Wood Working Technique
Mirror Finish Technique
Chair Making Step-by-Step




As a craftsman, he seeks to achieve the highest quality product. As an entrepreneur, he seeks to ensure his traditional upholstery techniques will carry into the next generation. Through the story of the founder Kisaku Iobe, we learn how a craftsman achieved a great reputation as a furniture manufacturer.
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brands墨衣 SUMI-GOROMO